5 Changes between 1.0.0f and 1.0.1 [xx XXX xxxx]
7 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
8 all platforms. Move ssize_t definition from e_os.h to the public
9 header file e_os2.h as it now appears in public header file cms.h
12 *) New -sigopt option to the ca, req and x509 utilities. Additional
13 signature parameters can be passed using this option and in
17 *) Add RSA PSS signing function. This will generate and set the
18 appropriate AlgorithmIdentifiers for PSS based on those in the
19 corresponding EVP_MD_CTX structure. No application support yet.
22 *) Support for companion algorithm specific ASN1 signing routines.
23 New function ASN1_item_sign_ctx() signs a pre-initialised
24 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
25 the appropriate parameters.
28 *) Add new algorithm specific ASN1 verification initialisation function
29 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
30 handling will be the same no matter what EVP_PKEY_METHOD is used.
31 Add a PSS handler to support verification of PSS signatures: checked
32 against a number of sample certificates.
35 *) Add signature printing for PSS. Add PSS OIDs.
36 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
38 *) Add algorithm specific signature printing. An individual ASN1 method
39 can now print out signatures instead of the standard hex dump.
41 More complex signatures (e.g. PSS) can print out more meaningful
42 information. Include DSA version that prints out the signature
46 *) Password based recipient info support for CMS library: implementing
50 *) Split password based encryption into PBES2 and PBKDF2 functions. This
51 neatly separates the code into cipher and PBE sections and is required
52 for some algorithms that split PBES2 into separate pieces (such as
56 *) Session-handling fixes:
57 - Fix handling of connections that are resuming with a session ID,
58 but also support Session Tickets.
59 - Fix a bug that suppressed issuing of a new ticket if the client
60 presented a ticket with an expired session.
61 - Try to set the ticket lifetime hint to something reasonable.
62 - Make tickets shorter by excluding irrelevant information.
63 - On the client side, don't ignore renewed tickets.
64 [Adam Langley, Bodo Moeller (Google)]
66 *) Fix PSK session representation.
69 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
71 This work was sponsored by Intel.
74 *) Add GCM support to TLS library. Some custom code is needed to split
75 the IV between the fixed (from PRF) and explicit (from TLS record)
76 portions. This adds all GCM ciphersuites supported by RFC5288 and
77 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
78 add a special AESGCM string for GCM only.
81 *) Expand range of ctrls for AES GCM. Permit setting invocation
82 field on decrypt and retrieval of invocation field only on encrypt.
85 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
86 As required by RFC5289 these ciphersuites cannot be used if for
87 versions of TLS earlier than 1.2.
90 *) For FIPS capable OpenSSL interpret a NULL default public key method
91 as unset and return the appopriate default but do *not* set the default.
92 This means we can return the appopriate method in applications that
93 swicth between FIPS and non-FIPS modes.
96 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
97 ENGINE is used then we cannot handle that in the FIPS module so we
98 keep original code iff non-FIPS operations are allowed.
101 *) Add -attime option to openssl verify.
102 [Peter Eckersley <pde@eff.org> and Ben Laurie]
104 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
107 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
108 FIPS EC methods unconditionally for now.
111 *) New build option no-ec2m to disable characteristic 2 code.
114 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
115 all cases can be covered as some introduce binary incompatibilities.
118 *) Redirect RSA operations to FIPS module including keygen,
119 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
122 *) Add similar low level API blocking to ciphers.
125 *) Low level digest APIs are not approved in FIPS mode: any attempt
126 to use these will cause a fatal error. Applications that *really* want
127 to use them can use the private_* version instead.
130 *) Redirect cipher operations to FIPS module for FIPS builds.
133 *) Redirect digest operations to FIPS module for FIPS builds.
136 *) Update build system to add "fips" flag which will link in fipscanister.o
137 for static and shared library builds embedding a signature if needed.
140 *) Output TLS supported curves in preference order instead of numerical
141 order. This is currently hardcoded for the highest order curves first.
142 This should be configurable so applications can judge speed vs strength.
145 *) Add TLS v1.2 server support for client authentication.
148 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
152 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
153 FIPS modules versions.
156 *) Add TLS v1.2 client side support for client authentication. Keep cache
157 of handshake records longer as we don't know the hash algorithm to use
158 until after the certificate request message is received.
161 *) Initial TLS v1.2 client support. Add a default signature algorithms
162 extension including all the algorithms we support. Parse new signature
163 format in client key exchange. Relax some ECC signing restrictions for
164 TLS v1.2 as indicated in RFC5246.
167 *) Add server support for TLS v1.2 signature algorithms extension. Switch
168 to new signature format when needed using client digest preference.
169 All server ciphersuites should now work correctly in TLS v1.2. No client
170 support yet and no support for client certificates.
173 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
174 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
175 ciphersuites. At present only RSA key exchange ciphersuites work with
176 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
177 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
178 and version checking.
181 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
182 with this defined it will not be affected by any changes to ssl internal
183 structures. Add several utility functions to allow openssl application
184 to work with OPENSSL_NO_SSL_INTERN defined.
188 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
190 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
193 *) Add EC_GFp_nistp224_method(), a 64-bit optimized implementation for
194 elliptic curve NIST-P224 with constant-time single point multiplication on
195 typical inputs. EC_GROUP_new_by_curve_name() will automatically use this
196 (while EC_GROUP_new_curve_GFp() currently won't and prefers the more
197 flexible implementations).
199 The implementation requires support for the nonstandard type __uint128_t,
200 and so is disabled by default. To include this in your build of OpenSSL,
201 use -DEC_NISTP224_64_GCC_128 on the Configure (or config) command line,
202 and run "make depend" (or "make update").
203 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
205 *) Permit abbreviated handshakes when renegotiating using the function
206 SSL_renegotiate_abbreviated().
207 [Robin Seggelmann <seggelmann@fh-muenster.de>]
209 *) Add call to ENGINE_register_all_complete() to
210 ENGINE_load_builtin_engines(), so some implementations get used
211 automatically instead of needing explicit application support.
214 *) Add support for TLS key exporter as described in RFC5705.
215 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
217 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
218 a few changes are required:
220 Add SSL_OP_NO_TLSv1_1 flag.
222 Update version checking logic to handle version 1.1.
223 Add explicit IV handling (ported from DTLS code).
224 Add command line options to s_client/s_server.
227 Changes between 1.0.0e and 1.0.0f [xx XXX xxxx]
229 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
230 [Bob Buckholz (Google)]
232 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
234 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
235 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
236 [Kaspar Brand <ossl@velox.ch>]
238 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
239 for multi-threaded use of ECDH. (CVE-2011-3210)
240 [Adam Langley (Google)]
242 *) Fix x509_name_ex_d2i memory leak on bad inputs.
245 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
246 signature public key algorithm by using OID xref utilities instead.
247 Before this you could only use some ECC ciphersuites with SHA1 only.
250 *) Add protection against ECDSA timing attacks as mentioned in the paper
251 by Billy Bob Brumley and Nicola Tuveri, see:
253 http://eprint.iacr.org/2011/232.pdf
255 [Billy Bob Brumley and Nicola Tuveri]
257 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
259 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
260 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
262 *) Fix bug in string printing code: if *any* escaping is enabled we must
263 escape the escape character (backslash) or the resulting string is
267 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
269 *) Disable code workaround for ancient and obsolete Netscape browsers
270 and servers: an attacker can use it in a ciphersuite downgrade attack.
271 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
274 *) Fixed J-PAKE implementation error, originally discovered by
275 Sebastien Martini, further info and confirmation from Stefan
276 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
279 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
281 *) Fix extension code to avoid race conditions which can result in a buffer
282 overrun vulnerability: resumed sessions must not be modified as they can
283 be shared by multiple threads. CVE-2010-3864
286 *) Fix WIN32 build system to correctly link an ENGINE directory into
290 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
292 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
294 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
296 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
298 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
299 context. The operation can be customised via the ctrl mechanism in
300 case ENGINEs want to include additional functionality.
303 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
306 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
307 output hashes compatible with older versions of OpenSSL.
308 [Willy Weisz <weisz@vcpc.univie.ac.at>]
310 *) Fix compression algorithm handling: if resuming a session use the
311 compression algorithm of the resumed session instead of determining
312 it from client hello again. Don't allow server to change algorithm.
315 *) Add load_crls() function to apps tidying load_certs() too. Add option
316 to verify utility to allow additional CRLs to be included.
319 *) Update OCSP request code to permit adding custom headers to the request:
320 some responders need this.
323 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
325 [Julia Lawall <julia@diku.dk>]
327 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
328 needlessly dereferenced structures, used obsolete functions and
329 didn't handle all updated verify codes correctly.
332 *) Disable MD2 in the default configuration.
335 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
336 indicate the initial BIO being pushed or popped. This makes it possible
337 to determine whether the BIO is the one explicitly called or as a result
338 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
339 it handles reference counts correctly and doesn't zero out the I/O bio
340 when it is not being explicitly popped. WARNING: applications which
341 included workarounds for the old buggy behaviour will need to be modified
342 or they could free up already freed BIOs.
345 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
346 renaming to all platforms (within the 0.9.8 branch, this was
347 done conditionally on Netware platforms to avoid a name clash).
348 [Guenter <lists@gknw.net>]
350 *) Add ECDHE and PSK support to DTLS.
351 [Michael Tuexen <tuexen@fh-muenster.de>]
353 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
357 *) Add "missing" function EVP_MD_flags() (without this the only way to
358 retrieve a digest flags is by accessing the structure directly. Update
359 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
360 or cipher is registered as in the "from" argument. Print out all
361 registered digests in the dgst usage message instead of manually
362 attempting to work them out.
365 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
366 this allows the use of compression and extensions. Change default cipher
367 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
368 by default unless an application cipher string requests it.
371 *) Alter match criteria in PKCS12_parse(). It used to try to use local
372 key ids to find matching certificates and keys but some PKCS#12 files
373 don't follow the (somewhat unwritten) rules and this strategy fails.
374 Now just gather all certificates together and the first private key
375 then look for the first certificate that matches the key.
378 *) Support use of registered digest and cipher names for dgst and cipher
379 commands instead of having to add each one as a special case. So now
386 openssl dgst -sha256 foo
388 and this works for ENGINE based algorithms too.
392 *) Update Gost ENGINE to support parameter files.
393 [Victor B. Wagner <vitus@cryptocom.ru>]
395 *) Support GeneralizedTime in ca utility.
396 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
398 *) Enhance the hash format used for certificate directory links. The new
399 form uses the canonical encoding (meaning equivalent names will work
400 even if they aren't identical) and uses SHA1 instead of MD5. This form
401 is incompatible with the older format and as a result c_rehash should
402 be used to rebuild symbolic links.
405 *) Make PKCS#8 the default write format for private keys, replacing the
406 traditional format. This form is standardised, more secure and doesn't
407 include an implicit MD5 dependency.
410 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
411 committed to OpenSSL should pass this lot as a minimum.
414 *) Add session ticket override functionality for use by EAP-FAST.
415 [Jouni Malinen <j@w1.fi>]
417 *) Modify HMAC functions to return a value. Since these can be implemented
418 in an ENGINE errors can occur.
421 *) Type-checked OBJ_bsearch_ex.
424 *) Type-checked OBJ_bsearch. Also some constification necessitated
425 by type-checking. Still to come: TXT_DB, bsearch(?),
426 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
430 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
431 seconds to a tm structure directly, instead of going through OS
432 specific date routines. This avoids any issues with OS routines such
433 as the year 2038 bug. New *_adj() functions for ASN1 time structures
434 and X509_time_adj_ex() to cover the extended range. The existing
435 X509_time_adj() is still usable and will no longer have any date issues.
438 *) Delta CRL support. New use deltas option which will attempt to locate
439 and search any appropriate delta CRLs available.
441 This work was sponsored by Google.
444 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
445 code and add additional score elements. Validate alternate CRL paths
446 as part of the CRL checking and indicate a new error "CRL path validation
447 error" in this case. Applications wanting additional details can use
448 the verify callback and check the new "parent" field. If this is not
449 NULL CRL path validation is taking place. Existing applications wont
450 see this because it requires extended CRL support which is off by
453 This work was sponsored by Google.
456 *) Support for freshest CRL extension.
458 This work was sponsored by Google.
461 *) Initial indirect CRL support. Currently only supported in the CRLs
462 passed directly and not via lookup. Process certificate issuer
463 CRL entry extension and lookup CRL entries by bother issuer name
464 and serial number. Check and process CRL issuer entry in IDP extension.
466 This work was sponsored by Google.
469 *) Add support for distinct certificate and CRL paths. The CRL issuer
470 certificate is validated separately in this case. Only enabled if
471 an extended CRL support flag is set: this flag will enable additional
472 CRL functionality in future.
474 This work was sponsored by Google.
477 *) Add support for policy mappings extension.
479 This work was sponsored by Google.
482 *) Fixes to pathlength constraint, self issued certificate handling,
483 policy processing to align with RFC3280 and PKITS tests.
485 This work was sponsored by Google.
488 *) Support for name constraints certificate extension. DN, email, DNS
489 and URI types are currently supported.
491 This work was sponsored by Google.
494 *) To cater for systems that provide a pointer-based thread ID rather
495 than numeric, deprecate the current numeric thread ID mechanism and
496 replace it with a structure and associated callback type. This
497 mechanism allows a numeric "hash" to be extracted from a thread ID in
498 either case, and on platforms where pointers are larger than 'long',
499 mixing is done to help ensure the numeric 'hash' is usable even if it
500 can't be guaranteed unique. The default mechanism is to use "&errno"
501 as a pointer-based thread ID to distinguish between threads.
503 Applications that want to provide their own thread IDs should now use
504 CRYPTO_THREADID_set_callback() to register a callback that will call
505 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
507 Note that ERR_remove_state() is now deprecated, because it is tied
508 to the assumption that thread IDs are numeric. ERR_remove_state(0)
509 to free the current thread's error state should be replaced by
510 ERR_remove_thread_state(NULL).
512 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
513 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
514 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
515 application was previously providing a numeric thread callback that
516 was inappropriate for distinguishing threads, then uniqueness might
517 have been obtained with &errno that happened immediately in the
518 intermediate development versions of OpenSSL; this is no longer the
519 case, the numeric thread callback will now override the automatic use
521 [Geoff Thorpe, with help from Bodo Moeller]
523 *) Initial support for different CRL issuing certificates. This covers a
524 simple case where the self issued certificates in the chain exist and
525 the real CRL issuer is higher in the existing chain.
527 This work was sponsored by Google.
530 *) Removed effectively defunct crypto/store from the build.
533 *) Revamp of STACK to provide stronger type-checking. Still to come:
534 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
535 ASN1_STRING, CONF_VALUE.
538 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
539 RAM on SSL connections. This option can save about 34k per idle SSL.
542 *) Revamp of LHASH to provide stronger type-checking. Still to come:
543 STACK, TXT_DB, bsearch, qsort.
546 *) Initial support for Cryptographic Message Syntax (aka CMS) based
547 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
548 support for data, signedData, compressedData, digestedData and
549 encryptedData, envelopedData types included. Scripts to check against
550 RFC4134 examples draft and interop and consistency checks of many
551 content types and variants.
554 *) Add options to enc utility to support use of zlib compression BIO.
557 *) Extend mk1mf to support importing of options and assembly language
558 files from Configure script, currently only included in VC-WIN32.
559 The assembly language rules can now optionally generate the source
560 files from the associated perl scripts.
563 *) Implement remaining functionality needed to support GOST ciphersuites.
564 Interop testing has been performed using CryptoPro implementations.
565 [Victor B. Wagner <vitus@cryptocom.ru>]
567 *) s390x assembler pack.
570 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
574 *) Implement Opaque PRF Input TLS extension as specified in
575 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
576 official specification yet and no extension type assignment by
577 IANA exists, this extension (for now) will have to be explicitly
578 enabled when building OpenSSL by providing the extension number
579 to use. For example, specify an option
581 -DTLSEXT_TYPE_opaque_prf_input=0x9527
583 to the "config" or "Configure" script to enable the extension,
584 assuming extension number 0x9527 (which is a completely arbitrary
585 and unofficial assignment based on the MD5 hash of the Internet
586 Draft). Note that by doing so, you potentially lose
587 interoperability with other TLS implementations since these might
588 be using the same extension number for other purposes.
590 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
591 opaque PRF input value to use in the handshake. This will create
592 an interal copy of the length-'len' string at 'src', and will
593 return non-zero for success.
595 To get more control and flexibility, provide a callback function
598 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
599 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
603 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
606 Callback function 'cb' will be called in handshakes, and is
607 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
608 Argument 'arg' is for application purposes (the value as given to
609 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
610 be provided to the callback function). The callback function
611 has to return non-zero to report success: usually 1 to use opaque
612 PRF input just if possible, or 2 to enforce use of the opaque PRF
613 input. In the latter case, the library will abort the handshake
614 if opaque PRF input is not successfully negotiated.
616 Arguments 'peerinput' and 'len' given to the callback function
617 will always be NULL and 0 in the case of a client. A server will
618 see the client's opaque PRF input through these variables if
619 available (NULL and 0 otherwise). Note that if the server
620 provides an opaque PRF input, the length must be the same as the
621 length of the client's opaque PRF input.
623 Note that the callback function will only be called when creating
624 a new session (session resumption can resume whatever was
625 previously negotiated), and will not be called in SSL 2.0
626 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
627 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
628 for applications that need to enforce opaque PRF input.
632 *) Update ssl code to support digests other than SHA1+MD5 for handshake
635 [Victor B. Wagner <vitus@cryptocom.ru>]
637 *) Add RFC4507 support to OpenSSL. This includes the corrections in
638 RFC4507bis. The encrypted ticket format is an encrypted encoded
639 SSL_SESSION structure, that way new session features are automatically
642 If a client application caches session in an SSL_SESSION structure
643 support is transparent because tickets are now stored in the encoded
646 The SSL_CTX structure automatically generates keys for ticket
647 protection in servers so again support should be possible
648 with no application modification.
650 If a client or server wishes to disable RFC4507 support then the option
651 SSL_OP_NO_TICKET can be set.
653 Add a TLS extension debugging callback to allow the contents of any client
654 or server extensions to be examined.
656 This work was sponsored by Google.
659 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
660 OpenSSL should now compile cleanly on gcc 4.2
661 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
663 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
664 support including streaming MAC support: this is required for GOST
666 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
668 *) Add option -stream to use PKCS#7 streaming in smime utility. New
669 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
670 to output in BER and PEM format.
673 *) Experimental support for use of HMAC via EVP_PKEY interface. This
674 allows HMAC to be handled via the EVP_DigestSign*() interface. The
675 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
676 ENGINE support for HMAC keys which are unextractable. New -mac and
677 -macopt options to dgst utility.
680 *) New option -sigopt to dgst utility. Update dgst to use
681 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
682 alternative signing paramaters such as X9.31 or PSS in the dgst
686 *) Change ssl_cipher_apply_rule(), the internal function that does
687 the work each time a ciphersuite string requests enabling
688 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
689 removing ("!foo+bar") a class of ciphersuites: Now it maintains
690 the order of disabled ciphersuites such that those ciphersuites
691 that most recently went from enabled to disabled not only stay
692 in order with respect to each other, but also have higher priority
693 than other disabled ciphersuites the next time ciphersuites are
696 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
697 the same ciphersuites as with "HIGH" alone, but in a specific
698 order where the PSK ciphersuites come first (since they are the
699 most recently disabled ciphersuites when "HIGH" is parsed).
701 Also, change ssl_create_cipher_list() (using this new
702 funcionality) such that between otherwise identical
703 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
707 *) Change ssl_create_cipher_list() so that it automatically
708 arranges the ciphersuites in reasonable order before starting
709 to process the rule string. Thus, the definition for "DEFAULT"
710 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
711 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
712 This makes it much easier to arrive at a reasonable default order
713 in applications for which anonymous ciphers are OK (meaning
714 that you can't actually use DEFAULT).
715 [Bodo Moeller; suggested by Victor Duchovni]
717 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
718 processing) into multiple integers instead of setting
719 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
720 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
721 (These masks as well as the individual bit definitions are hidden
722 away into the non-exported interface ssl/ssl_locl.h, so this
723 change to the definition of the SSL_CIPHER structure shouldn't
724 affect applications.) This give us more bits for each of these
725 categories, so there is no longer a need to coagulate AES128 and
726 AES256 into a single algorithm bit, and to coagulate Camellia128
727 and Camellia256 into a single algorithm bit, which has led to all
730 Thus, among other things, the kludge introduced in 0.9.7m and
731 0.9.8e for masking out AES256 independently of AES128 or masking
732 out Camellia256 independently of AES256 is not needed here in 0.9.9.
734 With the change, we also introduce new ciphersuite aliases that
735 so far were missing: "AES128", "AES256", "CAMELLIA128", and
739 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
740 Use the leftmost N bytes of the signature input if the input is
741 larger than the prime q (with N being the size in bytes of q).
744 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
745 it yet and it is largely untested.
748 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
751 *) Initial incomplete changes to avoid need for function casts in OpenSSL
752 some compilers (gcc 4.2 and later) reject their use. Safestack is
753 reimplemented. Update ASN1 to avoid use of legacy functions.
756 *) Win32/64 targets are linked with Winsock2.
759 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
760 to external functions. This can be used to increase CRL handling
761 efficiency especially when CRLs are very large by (for example) storing
762 the CRL revoked certificates in a database.
765 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
766 new CRLs added to a directory can be used. New command line option
767 -verify_return_error to s_client and s_server. This causes real errors
768 to be returned by the verify callback instead of carrying on no matter
769 what. This reflects the way a "real world" verify callback would behave.
772 *) GOST engine, supporting several GOST algorithms and public key formats.
773 Kindly donated by Cryptocom.
776 *) Partial support for Issuing Distribution Point CRL extension. CRLs
777 partitioned by DP are handled but no indirect CRL or reason partitioning
778 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
779 selected via a scoring technique which handles IDP and AKID in CRLs.
782 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
783 will ultimately be used for all verify operations: this will remove the
784 X509_STORE dependency on certificate verification and allow alternative
785 lookup methods. X509_STORE based implementations of these two callbacks.
788 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
789 Modify get_crl() to find a valid (unexpired) CRL if possible.
792 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
793 this would be called X509_CRL_cmp() but that name is already used by
794 a function that just compares CRL issuer names. Cache several CRL
795 extensions in X509_CRL structure and cache CRLDP in X509.
798 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
799 this maps equivalent X509_NAME structures into a consistent structure.
800 Name comparison can then be performed rapidly using memcmp().
803 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
807 *) Allow digests to supply their own micalg string for S/MIME type using
808 the ctrl EVP_MD_CTRL_MICALG.
811 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
812 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
813 ctrl. It can then customise the structure before and/or after signing
817 *) New function OBJ_add_sigid() to allow application defined signature OIDs
818 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
819 to free up any added signature OIDs.
822 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
823 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
824 digest and cipher tables. New options added to openssl utility:
825 list-message-digest-algorithms and list-cipher-algorithms.
828 *) Change the array representation of binary polynomials: the list
829 of degrees of non-zero coefficients is now terminated with -1.
830 Previously it was terminated with 0, which was also part of the
831 value; thus, the array representation was not applicable to
832 polynomials where t^0 has coefficient zero. This change makes
833 the array representation useful in a more general context.
836 *) Various modifications and fixes to SSL/TLS cipher string
837 handling. For ECC, the code now distinguishes between fixed ECDH
838 with RSA certificates on the one hand and with ECDSA certificates
839 on the other hand, since these are separate ciphersuites. The
840 unused code for Fortezza ciphersuites has been removed.
842 For consistency with EDH, ephemeral ECDH is now called "EECDH"
843 (not "ECDHE"). For consistency with the code for DH
844 certificates, use of ECDH certificates is now considered ECDH
845 authentication, not RSA or ECDSA authentication (the latter is
846 merely the CA's signing algorithm and not actively used in the
849 The temporary ciphersuite alias "ECCdraft" is no longer
850 available, and ECC ciphersuites are no longer excluded from "ALL"
851 and "DEFAULT". The following aliases now exist for RFC 4492
852 ciphersuites, most of these by analogy with the DH case:
854 kECDHr - ECDH cert, signed with RSA
855 kECDHe - ECDH cert, signed with ECDSA
856 kECDH - ECDH cert (signed with either RSA or ECDSA)
857 kEECDH - ephemeral ECDH
858 ECDH - ECDH cert or ephemeral ECDH
864 AECDH - anonymous ECDH
865 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
869 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
870 Use correct micalg parameters depending on digest(s) in signed message.
873 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
874 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
877 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
878 an engine to register a method. Add ENGINE lookups for methods and
879 functional reference processing.
882 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
883 EVP_{Sign,Verify}* which allow an application to customise the signature
887 *) New -resign option to smime utility. This adds one or more signers
888 to an existing PKCS#7 signedData structure. Also -md option to use an
889 alternative message digest algorithm for signing.
892 *) Tidy up PKCS#7 routines and add new functions to make it easier to
893 create PKCS7 structures containing multiple signers. Update smime
894 application to support multiple signers.
897 *) New -macalg option to pkcs12 utility to allow setting of an alternative
901 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
902 Reorganize PBE internals to lookup from a static table using NIDs,
903 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
904 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
905 PRF which will be automatically used with PBES2.
908 *) Replace the algorithm specific calls to generate keys in "req" with the
912 *) Update PKCS#7 enveloped data routines to use new API. This is now
913 supported by any public key method supporting the encrypt operation. A
914 ctrl is added to allow the public key algorithm to examine or modify
915 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
919 *) Add a ctrl to asn1 method to allow a public key algorithm to express
920 a default digest type to use. In most cases this will be SHA1 but some
921 algorithms (such as GOST) need to specify an alternative digest. The
922 return value indicates how strong the prefernce is 1 means optional and
923 2 is mandatory (that is it is the only supported type). Modify
924 ASN1_item_sign() to accept a NULL digest argument to indicate it should
925 use the default md. Update openssl utilities to use the default digest
926 type for signing if it is not explicitly indicated.
929 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
930 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
931 signing method from the key type. This effectively removes the link
932 between digests and public key types.
935 *) Add an OID cross reference table and utility functions. Its purpose is to
936 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
937 rsaEncryption. This will allow some of the algorithm specific hackery
938 needed to use the correct OID to be removed.
941 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
942 structures for PKCS7_sign(). They are now set up by the relevant public
946 *) Add provisional EC pkey method with support for ECDSA and ECDH.
949 *) Add support for key derivation (agreement) in the API, DH method and
953 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
954 public and private key formats. As a side effect these add additional
955 command line functionality not previously available: DSA signatures can be
956 generated and verified using pkeyutl and DH key support and generation in
961 [Oliver Tappe <zooey@hirschkaefer.de>]
963 *) New make target "install_html_docs" installs HTML renditions of the
965 [Oliver Tappe <zooey@hirschkaefer.de>]
967 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
968 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
969 support key and parameter generation and add initial key generation
970 functionality for RSA.
973 *) Add functions for main EVP_PKEY_method operations. The undocumented
974 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
975 EVP_PKEY_{encrypt,decrypt}_old.
978 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
979 key API, doesn't do much yet.
982 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
983 public key algorithms. New option to openssl utility:
984 "list-public-key-algorithms" to print out info.
987 *) Implement the Supported Elliptic Curves Extension for
988 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
991 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
992 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
995 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
996 utilities such as rsa, dsa, dsaparam etc except they process any key
1000 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1001 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1002 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1006 *) Initial support for pluggable public key ASN1.
1007 De-spaghettify the public key ASN1 handling. Move public and private
1008 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1009 algorithm specific handling to a single module within the relevant
1010 algorithm directory. Add functions to allow (near) opaque processing
1011 of public and private key structures.
1014 *) Implement the Supported Point Formats Extension for
1015 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1018 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1019 for the psk identity [hint] and the psk callback functions to the
1020 SSL_SESSION, SSL and SSL_CTX structure.
1023 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1027 SSL_CTX_use_psk_identity_hint
1028 SSL_get_psk_identity_hint
1029 SSL_get_psk_identity
1030 SSL_use_psk_identity_hint
1032 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1034 *) Add RFC 3161 compliant time stamp request creation, response generation
1035 and response verification functionality.
1036 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1038 *) Add initial support for TLS extensions, specifically for the server_name
1039 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1040 have new members for a host name. The SSL data structure has an
1041 additional member SSL_CTX *initial_ctx so that new sessions can be
1042 stored in that context to allow for session resumption, even after the
1043 SSL has been switched to a new SSL_CTX in reaction to a client's
1044 server_name extension.
1046 New functions (subject to change):
1048 SSL_get_servername()
1049 SSL_get_servername_type()
1052 New CTRL codes and macros (subject to change):
1054 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1055 - SSL_CTX_set_tlsext_servername_callback()
1056 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1057 - SSL_CTX_set_tlsext_servername_arg()
1058 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1060 openssl s_client has a new '-servername ...' option.
1062 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1063 '-key2 ...', '-servername_fatal' (subject to change). This allows
1064 testing the HostName extension for a specific single host name ('-cert'
1065 and '-key' remain fallbacks for handshakes without HostName
1066 negotiation). If the unrecogninzed_name alert has to be sent, this by
1067 default is a warning; it becomes fatal with the '-servername_fatal'
1070 [Peter Sylvester, Remy Allais, Christophe Renou]
1072 *) Whirlpool hash implementation is added.
1075 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1076 bn(64,32). Because of instruction set limitations it doesn't have
1077 any negative impact on performance. This was done mostly in order
1078 to make it possible to share assembler modules, such as bn_mul_mont
1079 implementations, between 32- and 64-bit builds without hassle.
1082 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1083 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1087 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1088 dedicated Montgomery multiplication procedure, is introduced.
1089 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1090 "64-bit" performance on certain 32-bit targets.
1093 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1094 in SSL structures. New SSL ctrl to set maximum send fragment size.
1095 Save memory by seeting the I/O buffer sizes dynamically instead of
1096 using the maximum available value.
1099 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1100 in addition to the text details.
1103 *) Very, very preliminary EXPERIMENTAL support for printing of general
1104 ASN1 structures. This currently produces rather ugly output and doesn't
1105 handle several customised structures at all.
1108 *) Integrated support for PVK file format and some related formats such
1109 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1110 these in the 'rsa' and 'dsa' utilities.
1113 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1116 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1117 place for the (very old) "NETSCAPE" format certificates which are now
1118 handled using new ASN1 code equivalents.
1121 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1122 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1123 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1126 *) Modify CRL distribution points extension code to print out previously
1127 unsupported fields. Enhance extension setting code to allow setting of
1131 *) Add print and set support for Issuing Distribution Point CRL extension.
1134 *) Change 'Configure' script to enable Camellia by default.
1137 Changes between 0.9.8r and 0.9.8s [xx XXX xxxx]
1139 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
1140 [Bob Buckholz (Google)]
1142 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1143 for multi-threaded use of ECDH.
1144 [Adam Langley (Google)]
1146 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1149 *) Add protection against ECDSA timing attacks as mentioned in the paper
1150 by Billy Bob Brumley and Nicola Tuveri, see:
1152 http://eprint.iacr.org/2011/232.pdf
1154 [Billy Bob Brumley and Nicola Tuveri]
1156 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1158 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1159 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1161 *) Fix bug in string printing code: if *any* escaping is enabled we must
1162 escape the escape character (backslash) or the resulting string is
1166 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1168 *) Disable code workaround for ancient and obsolete Netscape browsers
1169 and servers: an attacker can use it in a ciphersuite downgrade attack.
1170 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1173 *) Fixed J-PAKE implementation error, originally discovered by
1174 Sebastien Martini, further info and confirmation from Stefan
1175 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1178 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1180 *) Fix extension code to avoid race conditions which can result in a buffer
1181 overrun vulnerability: resumed sessions must not be modified as they can
1182 be shared by multiple threads. CVE-2010-3864
1185 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1188 *) Don't reencode certificate when calculating signature: cache and use
1189 the original encoding instead. This makes signature verification of
1190 some broken encodings work correctly.
1193 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1194 is also one of the inputs.
1195 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1197 *) Don't repeatedly append PBE algorithms to table if they already exist.
1198 Sort table on each new add. This effectively makes the table read only
1199 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1203 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1205 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1208 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1209 access or freeing data twice (CVE-2010-0742)
1210 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1212 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1213 common in certificates and some applications which only call
1214 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1218 Reduce copying into .apps and .test in makevms.com
1219 Don't try to use blank CA certificate in CA.com
1220 Allow use of C files from original directories in maketests.com
1221 [Steven M. Schweda" <sms@antinode.info>]
1223 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1225 *) When rejecting SSL/TLS records due to an incorrect version number, never
1226 update s->server with a new major version number. As of
1227 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1228 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1229 the previous behavior could result in a read attempt at NULL when
1230 receiving specific incorrect SSL/TLS records once record payload
1231 protection is active. (CVE-2010-0740)
1232 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1234 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1235 could be crashed if the relevant tables were not present (e.g. chrooted).
1236 [Tomas Hoger <thoger@redhat.com>]
1238 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1240 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1241 [Martin Olsson, Neel Mehta]
1243 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1244 accommodate for stack sorting, always a write lock!).
1247 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1248 excessive delays in the RAND_poll(): over a minute. As a workaround
1249 include a time check in the inner Heap32Next loop too.
1252 *) The code that handled flushing of data in SSL/TLS originally used the
1253 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1254 the problem outlined in PR#1949. The fix suggested there however can
1255 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1256 of Apache). So instead simplify the code to flush unconditionally.
1257 This should be fine since flushing with no data to flush is a no op.
1260 *) Handle TLS versions 2.0 and later properly and correctly use the
1261 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1262 off ancient servers have a habit of sticking around for a while...
1265 *) Modify compression code so it frees up structures without using the
1266 ex_data callbacks. This works around a problem where some applications
1267 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1268 restarting) then use compression (e.g. SSL with compression) later.
1269 This results in significant per-connection memory leaks and
1270 has caused some security issues including CVE-2008-1678 and
1274 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1275 change when encrypting or decrypting.
1278 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1279 connect and renegotiate with servers which do not support RI.
1280 Until RI is more widely deployed this option is enabled by default.
1283 *) Add "missing" ssl ctrls to clear options and mode.
1286 *) If client attempts to renegotiate and doesn't support RI respond with
1287 a no_renegotiation alert as required by RFC5746. Some renegotiating
1288 TLS clients will continue a connection gracefully when they receive
1289 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1290 waiting for a server hello which it will never receive. Now we treat a
1291 received no_renegotiation alert as a fatal error. This is because
1292 applications requesting a renegotiation might well expect it to succeed
1293 and would have no code in place to handle the server denying it so the
1294 only safe thing to do is to terminate the connection.
1297 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1298 peer supports secure renegotiation and 0 otherwise. Print out peer
1299 renegotiation support in s_client/s_server.
1302 *) Replace the highly broken and deprecated SPKAC certification method with
1303 the updated NID creation version. This should correctly handle UTF8.
1306 *) Implement RFC5746. Re-enable renegotiation but require the extension
1307 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1308 turns out to be a bad idea. It has been replaced by
1309 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1310 SSL_CTX_set_options(). This is really not recommended unless you
1311 know what you are doing.
1312 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1314 *) Fixes to stateless session resumption handling. Use initial_ctx when
1315 issuing and attempting to decrypt tickets in case it has changed during
1316 servername handling. Use a non-zero length session ID when attempting
1317 stateless session resumption: this makes it possible to determine if
1318 a resumption has occurred immediately after receiving server hello
1319 (several places in OpenSSL subtly assume this) instead of later in
1323 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1324 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1325 fixes for a few places where the return code is not checked
1327 [Julia Lawall <julia@diku.dk>]
1329 *) Add --strict-warnings option to Configure script to include devteam
1330 warnings in other configurations.
1333 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1334 makes it possible to install openssl libraries in locations which
1335 have names other than "lib", for example "/usr/lib64" which some
1337 [Steve Henson, based on patch from Jeremy Utley]
1339 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1340 X690 8.9.12 and can produce some misleading textual output of OIDs.
1341 [Steve Henson, reported by Dan Kaminsky]
1343 *) Delete MD2 from algorithm tables. This follows the recommendation in
1344 several standards that it is not used in new applications due to
1345 several cryptographic weaknesses. For binary compatibility reasons
1346 the MD2 API is still compiled in by default.
1349 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1353 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1354 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1356 [Guenter <lists@gknw.net>]
1358 *) Fix the server certificate chain building code to use X509_verify_cert(),
1359 it used to have an ad-hoc builder which was unable to cope with anything
1360 other than a simple chain.
1361 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1363 *) Don't check self signed certificate signatures in X509_verify_cert()
1364 by default (a flag can override this): it just wastes time without
1365 adding any security. As a useful side effect self signed root CAs
1366 with non-FIPS digests are now usable in FIPS mode.
1369 *) In dtls1_process_out_of_seq_message() the check if the current message
1370 is already buffered was missing. For every new message was memory
1371 allocated, allowing an attacker to perform an denial of service attack
1372 with sending out of seq handshake messages until there is no memory
1373 left. Additionally every future messege was buffered, even if the
1374 sequence number made no sense and would be part of another handshake.
1375 So only messages with sequence numbers less than 10 in advance will be
1376 buffered. (CVE-2009-1378)
1377 [Robin Seggelmann, discovered by Daniel Mentz]
1379 *) Records are buffered if they arrive with a future epoch to be
1380 processed after finishing the corresponding handshake. There is
1381 currently no limitation to this buffer allowing an attacker to perform
1382 a DOS attack with sending records with future epochs until there is no
1383 memory left. This patch adds the pqueue_size() function to detemine
1384 the size of a buffer and limits the record buffer to 100 entries.
1386 [Robin Seggelmann, discovered by Daniel Mentz]
1388 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1389 parent structure is freed. (CVE-2009-1379)
1392 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1393 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1396 [Ilya O. <vrghost@gmail.com>]
1398 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1400 *) Disable renegotiation completely - this fixes a severe security
1401 problem (CVE-2009-3555) at the cost of breaking all
1402 renegotiation. Renegotiation can be re-enabled by setting
1403 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1404 run-time. This is really not recommended unless you know what
1408 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1410 *) Don't set val to NULL when freeing up structures, it is freed up by
1411 underlying code. If sizeof(void *) > sizeof(long) this can result in
1412 zeroing past the valid field. (CVE-2009-0789)
1413 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1415 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1416 checked correctly. This would allow some invalid signed attributes to
1417 appear to verify correctly. (CVE-2009-0591)
1418 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1420 *) Reject UniversalString and BMPString types with invalid lengths. This
1421 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1422 a legal length. (CVE-2009-0590)
1425 *) Set S/MIME signing as the default purpose rather than setting it
1426 unconditionally. This allows applications to override it at the store
1430 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1431 to handle some structures.
1434 *) Improve efficiency of mem_gets: don't search whole buffer each time
1436 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1438 *) New -hex option for openssl rand.
1441 *) Print out UTF8String and NumericString when parsing ASN1.
1444 *) Support NumericString type for name components.
1447 *) Allow CC in the environment to override the automatically chosen
1448 compiler. Note that nothing is done to ensure flags work with the
1452 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1454 *) Properly check EVP_VerifyFinal() and similar return values
1456 [Ben Laurie, Bodo Moeller, Google Security Team]
1458 *) Enable TLS extensions by default.
1461 *) Allow the CHIL engine to be loaded, whether the application is
1462 multithreaded or not. (This does not release the developer from the
1463 obligation to set up the dynamic locking callbacks.)
1464 [Sander Temme <sander@temme.net>]
1466 *) Use correct exit code if there is an error in dgst command.
1467 [Steve Henson; problem pointed out by Roland Dirlewanger]
1469 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1470 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1473 *) Add experimental JPAKE support, including demo authentication in
1474 s_client and s_server.
1477 *) Set the comparison function in v3_addr_canonize().
1478 [Rob Austein <sra@hactrn.net>]
1480 *) Add support for XMPP STARTTLS in s_client.
1481 [Philip Paeps <philip@freebsd.org>]
1483 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1484 to ensure that even with this option, only ciphersuites in the
1485 server's preference list will be accepted. (Note that the option
1486 applies only when resuming a session, so the earlier behavior was
1487 just about the algorithm choice for symmetric cryptography.)
1490 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1492 *) Fix NULL pointer dereference if a DTLS server received
1493 ChangeCipherSpec as first record (CVE-2009-1386).
1496 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1497 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1500 *) The fix in 0.9.8c that supposedly got rid of unsafe
1501 double-checked locking was incomplete for RSA blinding,
1502 addressing just one layer of what turns out to have been
1503 doubly unsafe triple-checked locking.
1505 So now fix this for real by retiring the MONT_HELPER macro
1506 in crypto/rsa/rsa_eay.c.
1508 [Bodo Moeller; problem pointed out by Marius Schilder]
1510 *) Various precautionary measures:
1512 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1514 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1515 (NB: This would require knowledge of the secret session ticket key
1516 to exploit, in which case you'd be SOL either way.)
1518 - Change bn_nist.c so that it will properly handle input BIGNUMs
1519 outside the expected range.
1521 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1524 [Neel Mehta, Bodo Moeller]
1526 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1527 the load fails. Useful for distros.
1528 [Ben Laurie and the FreeBSD team]
1530 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1533 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1536 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1538 This work was sponsored by Logica.
1541 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1542 keystores. Support for SSL/TLS client authentication too.
1543 Not compiled unless enable-capieng specified to Configure.
1545 This work was sponsored by Logica.
1548 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1549 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1550 attribute creation routines such as certifcate requests and PKCS#12
1554 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1556 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1557 handshake which could lead to a cilent crash as found using the
1558 Codenomicon TLS test suite (CVE-2008-1672)
1559 [Steve Henson, Mark Cox]
1561 *) Fix double free in TLS server name extensions which could lead to
1562 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1565 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1567 Clear the error queue to ensure that error entries left from
1568 older function calls do not interfere with the correct operation.
1569 [Lutz Jaenicke, Erik de Castro Lopo]
1571 *) Remove root CA certificates of commercial CAs:
1573 The OpenSSL project does not recommend any specific CA and does not
1574 have any policy with respect to including or excluding any CA.
1575 Therefore it does not make any sense to ship an arbitrary selection
1576 of root CA certificates with the OpenSSL software.
1579 *) RSA OAEP patches to fix two separate invalid memory reads.
1580 The first one involves inputs when 'lzero' is greater than
1581 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1582 before the beginning of from). The second one involves inputs where
1583 the 'db' section contains nothing but zeroes (there is a one-byte
1584 invalid read after the end of 'db').
1585 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1587 *) Partial backport from 0.9.9-dev:
1589 Introduce bn_mul_mont (dedicated Montgomery multiplication
1590 procedure) as a candidate for BIGNUM assembler implementation.
1591 While 0.9.9-dev uses assembler for various architectures, only
1592 x86_64 is available by default here in the 0.9.8 branch, and
1593 32-bit x86 is available through a compile-time setting.
1595 To try the 32-bit x86 assembler implementation, use Configure
1596 option "enable-montasm" (which exists only for this backport).
1598 As "enable-montasm" for 32-bit x86 disclaims code stability
1599 anyway, in this constellation we activate additional code
1600 backported from 0.9.9-dev for further performance improvements,
1601 namely BN_from_montgomery_word. (To enable this otherwise,
1602 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1604 [Andy Polyakov (backport partially by Bodo Moeller)]
1606 *) Add TLS session ticket callback. This allows an application to set
1607 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1608 values. This is useful for key rollover for example where several key
1609 sets may exist with different names.
1612 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1613 This was broken until now in 0.9.8 releases, such that the only way
1614 a registered ENGINE could be used (assuming it initialises
1615 successfully on the host) was to explicitly set it as the default
1616 for the relevant algorithms. This is in contradiction with 0.9.7
1617 behaviour and the documentation. With this fix, when an ENGINE is
1618 registered into a given algorithm's table of implementations, the
1619 'uptodate' flag is reset so that auto-discovery will be used next
1620 time a new context for that algorithm attempts to select an
1622 [Ian Lister (tweaked by Geoff Thorpe)]
1624 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1625 implemention in the following ways:
1627 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1630 Lack of BER streaming support means one pass streaming processing is
1631 only supported if data is detached: setting the streaming flag is
1632 ignored for embedded content.
1634 CMS support is disabled by default and must be explicitly enabled
1635 with the enable-cms configuration option.
1638 *) Update the GMP engine glue to do direct copies between BIGNUM and
1639 mpz_t when openssl and GMP use the same limb size. Otherwise the
1640 existing "conversion via a text string export" trick is still used.
1641 [Paul Sheer <paulsheer@gmail.com>]
1643 *) Zlib compression BIO. This is a filter BIO which compressed and
1644 uncompresses any data passed through it.
1647 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1648 RFC3394 compatible AES key wrapping.
1651 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1652 sets string data without copying. X509_ALGOR_set0() and
1653 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1654 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1655 from an X509_ATTRIBUTE structure optionally checking it occurs only
1656 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1660 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1661 to get the expected BN_FLG_CONSTTIME behavior.
1662 [Bodo Moeller (Google)]
1666 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1667 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1668 - added some more tests to do_tests.pl
1669 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1670 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1671 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1672 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1673 - various changes to netware.pl to enable gcc-cross builds on Win32
1675 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1676 - various changes to fix missing prototype warnings
1677 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1678 - added AES, WHIRLPOOL and CPUID assembler code to build files
1679 - added missing AES assembler make rules to mk1mf.pl
1680 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1681 [Guenter Knauf <eflash@gmx.net>]
1683 *) Implement certificate status request TLS extension defined in RFC3546.
1684 A client can set the appropriate parameters and receive the encoded
1685 OCSP response via a callback. A server can query the supplied parameters
1686 and set the encoded OCSP response in the callback. Add simplified examples
1687 to s_client and s_server.
1690 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1692 *) Fix various bugs:
1693 + Binary incompatibility of ssl_ctx_st structure
1694 + DTLS interoperation with non-compliant servers
1695 + Don't call get_session_cb() without proposed session
1696 + Fix ia64 assembler code
1697 [Andy Polyakov, Steve Henson]
1699 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1701 *) DTLS Handshake overhaul. There were longstanding issues with
1702 OpenSSL DTLS implementation, which were making it impossible for
1703 RFC 4347 compliant client to communicate with OpenSSL server.
1704 Unfortunately just fixing these incompatibilities would "cut off"
1705 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1706 server keeps tolerating non RFC compliant syntax. The opposite is
1707 not true, 0.9.8f client can not communicate with earlier server.
1708 This update even addresses CVE-2007-4995.
1711 *) Changes to avoid need for function casts in OpenSSL: some compilers
1712 (gcc 4.2 and later) reject their use.
1713 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1716 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1717 RFC4507bis. The encrypted ticket format is an encrypted encoded
1718 SSL_SESSION structure, that way new session features are automatically
1721 If a client application caches session in an SSL_SESSION structure
1722 support is transparent because tickets are now stored in the encoded
1725 The SSL_CTX structure automatically generates keys for ticket
1726 protection in servers so again support should be possible
1727 with no application modification.
1729 If a client or server wishes to disable RFC4507 support then the option
1730 SSL_OP_NO_TICKET can be set.
1732 Add a TLS extension debugging callback to allow the contents of any client
1733 or server extensions to be examined.
1735 This work was sponsored by Google.
1738 *) Add initial support for TLS extensions, specifically for the server_name
1739 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1740 have new members for a host name. The SSL data structure has an
1741 additional member SSL_CTX *initial_ctx so that new sessions can be
1742 stored in that context to allow for session resumption, even after the
1743 SSL has been switched to a new SSL_CTX in reaction to a client's
1744 server_name extension.
1746 New functions (subject to change):
1748 SSL_get_servername()
1749 SSL_get_servername_type()
1752 New CTRL codes and macros (subject to change):
1754 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1755 - SSL_CTX_set_tlsext_servername_callback()
1756 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1757 - SSL_CTX_set_tlsext_servername_arg()
1758 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1760 openssl s_client has a new '-servername ...' option.
1762 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1763 '-key2 ...', '-servername_fatal' (subject to change). This allows
1764 testing the HostName extension for a specific single host name ('-cert'
1765 and '-key' remain fallbacks for handshakes without HostName
1766 negotiation). If the unrecogninzed_name alert has to be sent, this by
1767 default is a warning; it becomes fatal with the '-servername_fatal'
1770 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1772 *) Add AES and SSE2 assembly language support to VC++ build.
1775 *) Mitigate attack on final subtraction in Montgomery reduction.
1778 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1779 (which previously caused an internal error).
1782 *) Squeeze another 10% out of IGE mode when in != out.
1785 *) AES IGE mode speedup.
1786 [Dean Gaudet (Google)]
1788 *) Add the Korean symmetric 128-bit cipher SEED (see
1789 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1790 add SEED ciphersuites from RFC 4162:
1792 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1793 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1794 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1795 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1797 To minimize changes between patchlevels in the OpenSSL 0.9.8
1798 series, SEED remains excluded from compilation unless OpenSSL
1799 is configured with 'enable-seed'.
1800 [KISA, Bodo Moeller]
1802 *) Mitigate branch prediction attacks, which can be practical if a
1803 single processor is shared, allowing a spy process to extract
1804 information. For detailed background information, see
1805 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1806 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1807 and Necessary Software Countermeasures"). The core of the change
1808 are new versions BN_div_no_branch() and
1809 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1810 respectively, which are slower, but avoid the security-relevant
1811 conditional branches. These are automatically called by BN_div()
1812 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1813 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1814 remove a conditional branch.
1816 BN_FLG_CONSTTIME is the new name for the previous
1817 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1818 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1819 in the exponent causes BN_mod_exp_mont() to use the alternative
1820 implementation in BN_mod_exp_mont_consttime().) The old name
1821 remains as a deprecated alias.
1823 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1824 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1825 constant-time implementations for more than just exponentiation.
1826 Here too the old name is kept as a deprecated alias.
1828 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1829 the BN_BLINDING structure gets an independent copy of the
1830 modulus. This means that the previous "BIGNUM *m" argument to
1831 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1832 essentially becomes "const BIGNUM *m", although we can't actually
1833 change this in the header file before 0.9.9. It allows
1834 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1835 enable BN_FLG_CONSTTIME.
1837 [Matthew D Wood (Intel Corp)]
1839 *) In the SSL/TLS server implementation, be strict about session ID
1840 context matching (which matters if an application uses a single
1841 external cache for different purposes). Previously,
1842 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1843 set. This did ensure strict client verification, but meant that,
1844 with applications using a single external cache for quite
1845 different requirements, clients could circumvent ciphersuite
1846 restrictions for a given session ID context by starting a session
1847 in a different context.
1850 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1851 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1852 authentication-only ciphersuites.
1855 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1856 not complete and could lead to a possible single byte overflow
1857 (CVE-2007-5135) [Ben Laurie]
1859 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1861 *) Since AES128 and AES256 (and similarly Camellia128 and
1862 Camellia256) share a single mask bit in the logic of
1863 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1864 kludge to work properly if AES128 is available and AES256 isn't
1865 (or if Camellia128 is available and Camellia256 isn't).
1868 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1869 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1870 When a point or a seed is encoded in a BIT STRING, we need to
1871 prevent the removal of trailing zero bits to get the proper DER
1872 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1873 of a NamedBitList, for which trailing 0 bits need to be removed.)
1876 *) Have SSL/TLS server implementation tolerate "mismatched" record
1877 protocol version while receiving ClientHello even if the
1878 ClientHello is fragmented. (The server can't insist on the
1879 particular protocol version it has chosen before the ServerHello
1880 message has informed the client about his choice.)
1883 *) Add RFC 3779 support.
1884 [Rob Austein for ARIN, Ben Laurie]
1886 *) Load error codes if they are not already present instead of using a
1887 static variable. This allows them to be cleanly unloaded and reloaded.
1888 Improve header file function name parsing.
1891 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1892 or CAPABILITY handshake as required by RFCs.
1895 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1897 *) Introduce limits to prevent malicious keys being able to
1898 cause a denial of service. (CVE-2006-2940)
1899 [Steve Henson, Bodo Moeller]
1901 *) Fix ASN.1 parsing of certain invalid structures that can result
1902 in a denial of service. (CVE-2006-2937) [Steve Henson]
1904 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1905 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1907 *) Fix SSL client code which could crash if connecting to a
1908 malicious SSLv2 server. (CVE-2006-4343)
1909 [Tavis Ormandy and Will Drewry, Google Security Team]
1911 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1912 match only those. Before that, "AES256-SHA" would be interpreted
1913 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1914 the same strength classification in 0.9.7h) as we currently only
1915 have a single AES bit in the ciphersuite description bitmap.
1916 That change, however, also applied to ciphersuite strings such as
1917 "RC4-MD5" that intentionally matched multiple ciphersuites --
1918 namely, SSL 2.0 ciphersuites in addition to the more common ones
1919 from SSL 3.0/TLS 1.0.
1921 So we change the selection algorithm again: Naming an explicit
1922 ciphersuite selects this one ciphersuite, and any other similar
1923 ciphersuite (same bitmap) from *other* protocol versions.
1924 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1925 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1927 Since SSL 2.0 does not have any ciphersuites for which the
1928 128/256 bit distinction would be relevant, this works for now.
1929 The proper fix will be to use different bits for AES128 and
1930 AES256, which would have avoided the problems from the beginning;
1931 however, bits are scarce, so we can only do this in a new release
1932 (not just a patchlevel) when we can change the SSL_CIPHER
1933 definition to split the single 'unsigned long mask' bitmap into
1934 multiple values to extend the available space.
1938 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1940 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1941 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1943 *) Add AES IGE and biIGE modes.
1946 *) Change the Unix randomness entropy gathering to use poll() when
1947 possible instead of select(), since the latter has some
1948 undesirable limitations.
1949 [Darryl Miles via Richard Levitte and Bodo Moeller]
1951 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1952 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1953 cannot be implicitly activated as part of, e.g., the "AES" alias.
1954 However, please upgrade to OpenSSL 0.9.9[-dev] for
1955 non-experimental use of the ECC ciphersuites to get TLS extension
1956 support, which is required for curve and point format negotiation
1957 to avoid potential handshake problems.
1960 *) Disable rogue ciphersuites:
1962 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1963 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1964 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1966 The latter two were purportedly from
1967 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1970 Also deactivate the remaining ciphersuites from
1971 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1972 unofficial, and the ID has long expired.
1975 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1976 dual-core machines) and other potential thread-safety issues.
1979 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1980 versions), which is now available for royalty-free use
1981 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1982 Also, add Camellia TLS ciphersuites from RFC 4132.
1984 To minimize changes between patchlevels in the OpenSSL 0.9.8
1985 series, Camellia remains excluded from compilation unless OpenSSL
1986 is configured with 'enable-camellia'.
1989 *) Disable the padding bug check when compression is in use. The padding
1990 bug check assumes the first packet is of even length, this is not
1991 necessarily true if compresssion is enabled and can result in false
1992 positives causing handshake failure. The actual bug test is ancient
1993 code so it is hoped that implementations will either have fixed it by
1994 now or any which still have the bug do not support compression.
1997 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1999 *) When applying a cipher rule check to see if string match is an explicit
2000 cipher suite and only match that one cipher suite if it is.
2003 *) Link in manifests for VC++ if needed.
2004 [Austin Ziegler <halostatue@gmail.com>]
2006 *) Update support for ECC-based TLS ciphersuites according to
2007 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2008 TLS extensions, which are supported starting with the 0.9.9
2009 branch, not in the OpenSSL 0.9.8 branch).
2012 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2013 opaque EVP_CIPHER_CTX handling.
2016 *) Fixes and enhancements to zlib compression code. We now only use
2017 "zlib1.dll" and use the default __cdecl calling convention on Win32
2018 to conform with the standards mentioned here:
2019 http://www.zlib.net/DLL_FAQ.txt
2020 Static zlib linking now works on Windows and the new --with-zlib-include
2021 --with-zlib-lib options to Configure can be used to supply the location
2022 of the headers and library. Gracefully handle case where zlib library
2026 *) Several fixes and enhancements to the OID generation code. The old code
2027 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2028 handle numbers larger than ULONG_MAX, truncated printing and had a
2029 non standard OBJ_obj2txt() behaviour.
2032 *) Add support for building of engines under engine/ as shared libraries
2033 under VC++ build system.
2036 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2037 Hopefully, we will not see any false combination of paths any more.
2040 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2042 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2043 (part of SSL_OP_ALL). This option used to disable the
2044 countermeasure against man-in-the-middle protocol-version
2045 rollback in the SSL 2.0 server implementation, which is a bad
2046 idea. (CVE-2005-2969)
2048 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2049 for Information Security, National Institute of Advanced Industrial
2050 Science and Technology [AIST], Japan)]
2052 *) Add two function to clear and return the verify parameter flags.
2055 *) Keep cipherlists sorted in the source instead of sorting them at
2056 runtime, thus removing the need for a lock.
2059 *) Avoid some small subgroup attacks in Diffie-Hellman.
2060 [Nick Mathewson and Ben Laurie]
2062 *) Add functions for well-known primes.
2065 *) Extended Windows CE support.
2066 [Satoshi Nakamura and Andy Polyakov]
2068 *) Initialize SSL_METHOD structures at compile time instead of during
2069 runtime, thus removing the need for a lock.
2072 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2073 attempting to decrypt each encrypted key in turn. Add support to
2077 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2079 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2082 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2085 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2086 key into the same file any more.
2089 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2092 *) Add -utf8 command line and config file option to 'ca'.
2093 [Stefan <stf@udoma.org]
2095 *) Removed the macro des_crypt(), as it seems to conflict with some
2096 libraries. Use DES_crypt().
2099 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2100 involves renaming the source and generated shared-libs for
2101 both. The engines will accept the corrected or legacy ids
2102 ('ncipher' and '4758_cca' respectively) when binding. NB,
2103 this only applies when building 'shared'.
2104 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2106 *) Add attribute functions to EVP_PKEY structure. Modify
2107 PKCS12_create() to recognize a CSP name attribute and
2108 use it. Make -CSP option work again in pkcs12 utility.
2111 *) Add new functionality to the bn blinding code:
2112 - automatic re-creation of the BN_BLINDING parameters after
2113 a fixed number of uses (currently 32)
2114 - add new function for parameter creation
2115 - introduce flags to control the update behaviour of the
2116 BN_BLINDING parameters
2117 - hide BN_BLINDING structure
2118 Add a second BN_BLINDING slot to the RSA structure to improve
2119 performance when a single RSA object is shared among several
2123 *) Add support for DTLS.
2124 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2126 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2127 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2130 *) Remove buggy and incompletet DH cert support from
2131 ssl/ssl_rsa.c and ssl/s3_both.c
2134 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2135 the apps/openssl applications.
2138 *) Compile clean with "-Wall -Wmissing-prototypes
2139 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2140 DEBUG_SAFESTACK must also be set.
2143 *) Change ./Configure so that certain algorithms can be disabled by default.
2144 The new counterpiece to "no-xxx" is "enable-xxx".
2146 The patented RC5 and MDC2 algorithms will now be disabled unless
2147 "enable-rc5" and "enable-mdc2", respectively, are specified.
2149 (IDEA remains enabled despite being patented. This is because IDEA
2150 is frequently required for interoperability, and there is no license
2151 fee for non-commercial use. As before, "no-idea" can be used to
2152 avoid this algorithm.)
2156 *) Add processing of proxy certificates (see RFC 3820). This work was
2157 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2158 EGEE (Enabling Grids for E-science in Europe).
2161 *) RC4 performance overhaul on modern architectures/implementations, such
2162 as Intel P4, IA-64 and AMD64.
2165 *) New utility extract-section.pl. This can be used specify an alternative
2166 section number in a pod file instead of having to treat each file as
2167 a separate case in Makefile. This can be done by adding two lines to the
2170 =for comment openssl_section:XXX
2172 The blank line is mandatory.
2176 *) New arguments -certform, -keyform and -pass for s_client and s_server
2177 to allow alternative format key and certificate files and passphrase
2181 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2182 update associated structures and add various utility functions.
2184 Add new policy related verify parameters, include policy checking in
2185 standard verify code. Enhance 'smime' application with extra parameters
2186 to support policy checking and print out.
2189 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2190 Nehemiah processors. These extensions support AES encryption in hardware
2191 as well as RNG (though RNG support is currently disabled).
2192 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2194 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2197 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2198 [Andy Polyakov and a number of other people]
2200 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2201 implementation contributed by IBM.
2202 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2204 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2205 exponent rather than 'unsigned long'. There is a corresponding change to
2206 the new 'rsa_keygen' element of the RSA_METHOD structure.
2207 [Jelte Jansen, Geoff Thorpe]
2209 *) Functionality for creating the initial serial number file is now
2210 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2212 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2213 number file to 1, which is bound to cause problems. To avoid
2214 the problems while respecting compatibility between different 0.9.7
2215 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2216 CA.pl for serial number initialization. With the new release 0.9.8,
2217 we can fix the problem directly in the 'ca' utility.)
2220 *) Reduced header interdepencies by declaring more opaque objects in
2221 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2222 give fewer recursive includes, which could break lazy source code - so
2223 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2224 developers should define this symbol when building and using openssl to
2225 ensure they track the recommended behaviour, interfaces, [etc], but
2226 backwards-compatible behaviour prevails when this isn't defined.
2229 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2232 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2233 This will generate a random key of the appropriate length based on the
2234 cipher context. The EVP_CIPHER can provide its own random key generation
2235 routine to support keys of a specific form. This is used in the des and
2236 3des routines to generate a key of the correct parity. Update S/MIME
2237 code to use new functions and hence generate correct parity DES keys.
2238 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2239 valid (weak or incorrect parity).
2242 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2243 as looking them up. This is useful when the verified structure may contain
2244 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2245 present unless the new PKCS7_NO_CRL flag is asserted.
2248 *) Extend ASN1 oid configuration module. It now additionally accepts the
2251 shortName = some long name, 1.2.3.4
2254 *) Reimplemented the BN_CTX implementation. There is now no more static
2255 limitation on the number of variables it can handle nor the depth of the
2256 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2257 information can now expand as required, and rather than having a single
2258 static array of bignums, BN_CTX now uses a linked-list of such arrays
2259 allowing it to expand on demand whilst maintaining the usefulness of
2260 BN_CTX's "bundling".
2263 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2264 to allow all RSA operations to function using a single BN_CTX.
2267 *) Preliminary support for certificate policy evaluation and checking. This
2268 is initially intended to pass the tests outlined in "Conformance Testing
2269 of Relying Party Client Certificate Path Processing Logic" v1.07.
2272 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2273 remained unused and not that useful. A variety of other little bignum
2274 tweaks and fixes have also been made continuing on from the audit (see
2278 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2279 associated ASN1, EVP and SSL functions and old ASN1 macros.
2282 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2283 and this should never fail. So the return value from the use of
2284 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2285 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2288 *) BN_CTX_get() should return zero-valued bignums, providing the same
2289 initialised value as BN_new().
2290 [Geoff Thorpe, suggested by Ulf Möller]
2292 *) Support for inhibitAnyPolicy certificate extension.
2295 *) An audit of the BIGNUM code is underway, for which debugging code is
2296 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2297 is considered valid when processing BIGNUMs, and causes execution to
2298 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2299 further steps are taken to deliberately pollute unused data in BIGNUM
2300 structures to try and expose faulty code further on. For now, openssl will
2301 (in its default mode of operation) continue to tolerate the inconsistent
2302 forms that it has tolerated in the past, but authors and packagers should
2303 consider trying openssl and their own applications when compiled with
2304 these debugging symbols defined. It will help highlight potential bugs in
2305 their own code, and will improve the test coverage for OpenSSL itself. At
2306 some point, these tighter rules will become openssl's default to improve
2307 maintainability, though the assert()s and other overheads will remain only
2308 in debugging configurations. See bn.h for more details.
2309 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2311 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2312 that can only be obtained through BN_CTX_new() (which implicitly
2313 initialises it). The presence of this function only made it possible
2314 to overwrite an existing structure (and cause memory leaks).
2317 *) Because of the callback-based approach for implementing LHASH as a
2318 template type, lh_insert() adds opaque objects to hash-tables and
2319 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2320 to clean up those corresponding objects before destroying the hash table
2321 (and losing the object pointers). So some over-zealous constifications in
2322 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2323 objects as "const" and the lh_doall[_arg] callback wrappers are not
2324 prototyped to have "const" restrictions on the object pointers they are
2325 given (and so aren't required to cast them away any more).
2328 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2329 (speed) prefers to use its own implementation. The two implementations
2330 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2331 its object type properly exposed (MS_TM) instead of casting to/from "char
2332 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2333 aren't necessarily the greatest nomenclatures - but this is what was used
2334 internally to the implementation so I've used that for now.
2337 *) Ensure that deprecated functions do not get compiled when
2338 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2339 the self-tests were still using deprecated key-generation functions so
2340 these have been updated also.
2343 *) Reorganise PKCS#7 code to separate the digest location functionality
2344 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2345 New function PKCS7_set_digest() to set the digest type for PKCS#7
2346 digestedData type. Add additional code to correctly generate the
2347 digestedData type and add support for this type in PKCS7 initialization
2351 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2352 structure of type "other".
2355 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2356 sure the loop does correctly stop and breaking ("division by zero")
2357 modulus operations are not performed. The (pre-generated) prime
2358 table crypto/bn/bn_prime.h was already correct, but it could not be
2359 re-generated on some platforms because of the "division by zero"
2360 situation in the script.
2361 [Ralf S. Engelschall]
2363 *) Update support for ECC-based TLS ciphersuites according to
2364 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2365 SHA-1 now is only used for "small" curves (where the
2366 representation of a field element takes up to 24 bytes); for
2367 larger curves, the field element resulting from ECDH is directly
2368 used as premaster secret.
2369 [Douglas Stebila (Sun Microsystems Laboratories)]
2371 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2372 curve secp160r1 to the tests.
2373 [Douglas Stebila (Sun Microsystems Laboratories)]
2375 *) Add the possibility to load symbols globally with DSO.
2376 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2378 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2379 control of the error stack.
2382 *) Add support for STORE in ENGINE.
2385 *) Add the STORE type. The intention is to provide a common interface
2386 to certificate and key stores, be they simple file-based stores, or
2387 HSM-type store, or LDAP stores, or...
2388 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2391 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2392 pass a list of arguments to any function as well as provide a way
2393 for a function to pass data back to the caller.
2396 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2397 works like BUF_strdup() but can be used to duplicate a portion of
2398 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2402 *) Add the function sk_find_ex() which works like sk_find(), but will
2403 return an index to an element even if an exact match couldn't be
2404 found. The index is guaranteed to point at the element where the
2405 searched-for key would be inserted to preserve sorting order.
2408 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2409 takes an extra flags argument for optional functionality. Currently,
2410 the following flags are defined:
2412 OBJ_BSEARCH_VALUE_ON_NOMATCH
2413 This one gets OBJ_bsearch_ex() to return a pointer to the first
2414 element where the comparing function returns a negative or zero
2417 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2418 This one gets OBJ_bsearch_ex() to return a pointer to the first
2419 element where the comparing function returns zero. This is useful
2420 if there are more than one element where the comparing function
2424 *) Make it possible to create self-signed certificates with 'openssl ca'
2425 in such a way that the self-signed certificate becomes part of the
2426 CA database and uses the same mechanisms for serial number generation
2427 as all other certificate signing. The new flag '-selfsign' enables
2428 this functionality. Adapt CA.sh and CA.pl.in.
2431 *) Add functionality to check the public key of a certificate request
2432 against a given private. This is useful to check that a certificate
2433 request can be signed by that key (self-signing).
2436 *) Make it possible to have multiple active certificates with the same
2437 subject in the CA index file. This is done only if the keyword
2438 'unique_subject' is set to 'no' in the main CA section (default
2439 if 'CA_default') of the configuration file. The value is saved
2440 with the database itself in a separate index attribute file,
2441 named like the index file with '.attr' appended to the name.
2444 *) Generate muti valued AVAs using '+' notation in config files for
2448 *) Support for nameConstraints certificate extension.
2451 *) Support for policyConstraints certificate extension.
2454 *) Support for policyMappings certificate extension.
2457 *) Make sure the default DSA_METHOD implementation only uses its
2458 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2459 and change its own handlers to be NULL so as to remove unnecessary
2460 indirection. This lets alternative implementations fallback to the
2461 default implementation more easily.
2464 *) Support for directoryName in GeneralName related extensions
2468 *) Make it possible to link applications using Makefile.shared.
2469 Make that possible even when linking against static libraries!
2472 *) Support for single pass processing for S/MIME signing. This now
2473 means that S/MIME signing can be done from a pipe, in addition
2474 cleartext signing (multipart/signed type) is effectively streaming
2475 and the signed data does not need to be all held in memory.
2477 This is done with a new flag PKCS7_STREAM. When this flag is set
2478 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2479 is done after the data is output (and digests calculated) in
2480 SMIME_write_PKCS7().
2483 *) Add full support for -rpath/-R, both in shared libraries and
2484 applications, at least on the platforms where it's known how
2488 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2489 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2490 will now compute a table of multiples of the generator that
2491 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2492 faster (notably in the case of a single point multiplication,
2493 scalar * generator).
2494 [Nils Larsch, Bodo Moeller]
2496 *) IPv6 support for certificate extensions. The various extensions
2497 which use the IP:a.b.c.d can now take IPv6 addresses using the
2498 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2502 *) Added an ENGINE that implements RSA by performing private key
2503 exponentiations with the GMP library. The conversions to and from
2504 GMP's mpz_t format aren't optimised nor are any montgomery forms
2505 cached, and on x86 it appears OpenSSL's own performance has caught up.
2506 However there are likely to be other architectures where GMP could
2507 provide a boost. This ENGINE is not built in by default, but it can be
2508 specified at Configure time and should be accompanied by the necessary
2509 linker additions, eg;
2510 ./config -DOPENSSL_USE_GMP -lgmp
2513 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2514 testing availability of engines with "-t" - the old behaviour is
2515 produced by increasing the feature's verbosity with "-tt".
2518 *) ECDSA routines: under certain error conditions uninitialized BN objects
2519 could be freed. Solution: make sure initialization is performed early
2520 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2524 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2525 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2526 software implementations. For DSA and DH, parameter generation can
2527 also be overriden by providing the appropriate method callbacks.
2530 *) Change the "progress" mechanism used in key-generation and
2531 primality testing to functions that take a new BN_GENCB pointer in
2532 place of callback/argument pairs. The new API functions have "_ex"
2533 postfixes and the older functions are reimplemented as wrappers for
2534 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2535 declarations of the old functions to help (graceful) attempts to
2536 migrate to the new functions. Also, the new key-generation API
2537 functions operate on a caller-supplied key-structure and return
2538 success/failure rather than returning a key or NULL - this is to
2539 help make "keygen" another member function of RSA_METHOD etc.
2541 Example for using the new callback interface:
2543 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2547 BN_GENCB_set(&my_cb, my_callback, my_arg);
2549 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2550 /* For the meaning of a, b in calls to my_callback(), see the
2551 * documentation of the function that calls the callback.
2552 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2553 * my_callback should return 1 if it wants BN_is_prime_ex()
2554 * to continue, or 0 to stop.
2559 *) Change the ZLIB compression method to be stateful, and make it
2560 available to TLS with the number defined in
2561 draft-ietf-tls-compression-04.txt.
2564 *) Add the ASN.1 structures and functions for CertificatePair, which
2565 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2567 CertificatePair ::= SEQUENCE {
2568 forward [0] Certificate OPTIONAL,
2569 reverse [1] Certificate OPTIONAL,
2570 -- at least one of the pair shall be present -- }
2572 Also implement the PEM functions to read and write certificate
2573 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2575 This needed to be defined, mostly for the sake of the LDAP
2576 attribute crossCertificatePair, but may prove useful elsewhere as
2580 *) Make it possible to inhibit symlinking of shared libraries in
2581 Makefile.shared, for Cygwin's sake.
2584 *) Extend the BIGNUM API by creating a function
2585 void BN_set_negative(BIGNUM *a, int neg);
2586 and a macro that behave like
2587 int BN_is_negative(const BIGNUM *a);
2589 to avoid the need to access 'a->neg' directly in applications.
2592 *) Implement fast modular reduction for pseudo-Mersenne primes
2593 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2594 EC_GROUP_new_curve_GFp() will now automatically use this
2596 [Nils Larsch <nla@trustcenter.de>]
2598 *) Add new lock type (CRYPTO_LOCK_BN).
2601 *) Change the ENGINE framework to automatically load engines
2602 dynamically from specific directories unless they could be
2603 found to already be built in or loaded. Move all the
2604 current engines except for the cryptodev one to a new
2606 The engines in engines/ are built as shared libraries if
2607 the "shared" options was given to ./Configure or ./config.
2608 Otherwise, they are inserted in libcrypto.a.
2609 /usr/local/ssl/engines is the default directory for dynamic
2610 engines, but that can be overriden at configure time through
2611 the usual use of --prefix and/or --openssldir, and at run
2612 time with the environment variable OPENSSL_ENGINES.
2613 [Geoff Thorpe and Richard Levitte]
2615 *) Add Makefile.shared, a helper makefile to build shared
2616 libraries. Addapt Makefile.org.
2619 *) Add version info to Win32 DLLs.
2620 [Peter 'Luna' Runestig" <peter@runestig.com>]
2622 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2623 can be added using this API to created arbitrary PKCS#12
2624 files while avoiding the low level API.
2626 New options to PKCS12_create(), key or cert can be NULL and
2627 will then be omitted from the output file. The encryption
2628 algorithm NIDs can be set to -1 for no encryption, the mac
2629 iteration count can be set to 0 to omit the mac.
2631 Enhance pkcs12 utility by making the -nokeys and -nocerts
2632 options work when creating a PKCS#12 file. New option -nomac
2633 to omit the mac, NONE can be set for an encryption algorithm.
2634 New code is modified to use the enhanced PKCS12_create()
2635 instead of the low level API.
2638 *) Extend ASN1 encoder to support indefinite length constructed
2639 encoding. This can output sequences tags and octet strings in
2640 this form. Modify pk7_asn1.c to support indefinite length
2641 encoding. This is experimental and needs additional code to
2642 be useful, such as an ASN1 bio and some enhanced streaming
2645 Extend template encode functionality so that tagging is passed
2646 down to the template encoder.
2649 *) Let 'openssl req' fail if an argument to '-newkey' is not
2650 recognized instead of using RSA as a default.
2653 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2654 As these are not official, they are not included in "ALL";
2655 the "ECCdraft" ciphersuite group alias can be used to select them.
2656 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2658 *) Add ECDH engine support.
2659 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2661 *) Add ECDH in new directory crypto/ecdh/.
2662 [Douglas Stebila (Sun Microsystems Laboratories)]
2664 *) Let BN_rand_range() abort with an error after 100 iterations
2665 without success (which indicates a broken PRNG).
2668 *) Change BN_mod_sqrt() so that it verifies that the input value
2669 is really the square of the return value. (Previously,
2670 BN_mod_sqrt would show GIGO behaviour.)
2673 *) Add named elliptic curves over binary fields from X9.62, SECG,
2674 and WAP/WTLS; add OIDs that were still missing.
2676 [Sheueling Chang Shantz and Douglas Stebila
2677 (Sun Microsystems Laboratories)]
2679 *) Extend the EC library for elliptic curves over binary fields
2680 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2683 EC_GF2m_simple_method
2687 EC_GROUP_new_curve_GF2m
2688 EC_GROUP_set_curve_GF2m
2689 EC_GROUP_get_curve_GF2m
2690 EC_POINT_set_affine_coordinates_GF2m
2691 EC_POINT_get_affine_coordinates_GF2m
2692 EC_POINT_set_compressed_coordinates_GF2m
2694 Point compression for binary fields is disabled by default for
2695 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2698 As binary polynomials are represented as BIGNUMs, various members
2699 of the EC_GROUP and EC_POINT data structures can be shared
2700 between the implementations for prime fields and binary fields;
2701 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2702 are essentially identical to their ..._GFp counterparts.
2703 (For simplicity, the '..._GFp' prefix has been dropped from
2704 various internal method names.)
2706 An internal 'field_div' method (similar to 'field_mul' and
2707 'field_sqr') has been added; this is used only for binary fields.
2709 [Sheueling Chang Shantz and Douglas Stebila
2710 (Sun Microsystems Laboratories)]
2712 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2713 through methods ('mul', 'precompute_mult').
2715 The generic implementations (now internally called 'ec_wNAF_mul'
2716 and 'ec_wNAF_precomputed_mult') remain the default if these
2717 methods are undefined.
2719 [Sheueling Chang Shantz and Douglas Stebila
2720 (Sun Microsystems Laboratories)]
2722 *) New function EC_GROUP_get_degree, which is defined through
2723 EC_METHOD. For curves over prime fields, this returns the bit
2724 length of the modulus.
2726 [Sheueling Chang Shantz and Douglas Stebila
2727 (Sun Microsystems Laboratories)]
2729 *) New functions EC_GROUP_dup, EC_POINT_dup.
2730 (These simply call ..._new and ..._copy).
2732 [Sheueling Chang Shantz and Douglas Stebila
2733 (Sun Microsystems Laboratories)]
2735 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2736 Polynomials are represented as BIGNUMs (where the sign bit is not
2737 used) in the following functions [macros]:
2740 BN_GF2m_sub [= BN_GF2m_add]
2741 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2742 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2743 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2745 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2746 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2747 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2748 BN_GF2m_cmp [= BN_ucmp]
2750 (Note that only the 'mod' functions are actually for fields GF(2^m).
2751 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2753 For some functions, an the irreducible polynomial defining a
2754 field can be given as an 'unsigned int[]' with strictly
2755 decreasing elements giving the indices of those bits that are set;
2756 i.e., p[] represents the polynomial
2757 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2759 p[0] > p[1] > ... > p[k] = 0.
2760 This applies to the following functions:
2765 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2766 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2768 BN_GF2m_mod_sqrt_arr
2769 BN_GF2m_mod_solve_quad_arr
2773 Conversion can be performed by the following functions:
2778 bntest.c has additional tests for binary polynomial arithmetic.
2780 Two implementations for BN_GF2m_mod_div() are available.
2781 The default algorithm simply uses BN_GF2m_mod_inv() and
2782 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2783 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2784 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2786 [Sheueling Chang Shantz and Douglas Stebila
2787 (Sun Microsystems Laboratories)]
2789 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2790 functionality is disabled at compile-time.
2791 [Douglas Stebila <douglas.stebila@sun.com>]
2793 *) Change default behaviour of 'openssl asn1parse' so that more
2794 information is visible when viewing, e.g., a certificate:
2796 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2797 mode the content of non-printable OCTET STRINGs is output in a
2798 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2799 avoid the appearance of a printable string.
2800 [Nils Larsch <nla@trustcenter.de>]
2802 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2804 EC_GROUP_set_asn1_flag()
2805 EC_GROUP_get_asn1_flag()
2806 EC_GROUP_set_point_conversion_form()
2807 EC_GROUP_get_point_conversion_form()
2808 These control ASN1 encoding details:
2809 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2810 has been set to OPENSSL_EC_NAMED_CURVE.
2811 - Points are encoded in uncompressed form by default; options for
2812 asn1_for are as for point2oct, namely
2813 POINT_CONVERSION_COMPRESSED
2814 POINT_CONVERSION_UNCOMPRESSED
2815 POINT_CONVERSION_HYBRID
2817 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2820 EC_GROUP_get0_seed()
2821 EC_GROUP_get_seed_len()
2822 This is used only for ASN1 purposes (so far).
2823 [Nils Larsch <nla@trustcenter.de>]
2825 *) Add 'field_type' member to EC_METHOD, which holds the NID
2826 of the appropriate field type OID. The new function
2827 EC_METHOD_get_field_type() returns this value.
2828 [Nils Larsch <nla@trustcenter.de>]
2833 EC_POINT_point2hex()
2834 EC_POINT_hex2point()
2835 providing useful interfaces to EC_POINT_point2oct() and
2836 EC_POINT_oct2point().
2837 [Nils Larsch <nla@trustcenter.de>]
2839 *) Change internals of the EC library so that the functions
2840 EC_GROUP_set_generator()
2841 EC_GROUP_get_generator()
2842 EC_GROUP_get_order()
2843 EC_GROUP_get_cofactor()
2844 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2845 to methods, which would lead to unnecessary code duplication when
2846 adding different types of curves.
2847 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2849 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2850 arithmetic, and such that modified wNAFs are generated
2851 (which avoid length expansion in many cases).
2854 *) Add a function EC_GROUP_check_discriminant() (defined via
2855 EC_METHOD) that verifies that the curve discriminant is non-zero.
2857 Add a function EC_GROUP_check() that makes some sanity tests
2858 on a EC_GROUP, its generator and order. This includes
2859 EC_GROUP_check_discriminant().
2860 [Nils Larsch <nla@trustcenter.de>]
2862 *) Add ECDSA in new directory crypto/ecdsa/.
2864 Add applications 'openssl ecparam' and 'openssl ecdsa'
2865 (these are based on 'openssl dsaparam' and 'openssl dsa').
2867 ECDSA support is also included in various other files across the
2868 library. Most notably,
2869 - 'openssl req' now has a '-newkey ecdsa:file' option;
2870 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2871 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2872 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2873 them suitable for ECDSA where domain parameters must be
2874 extracted before the specific public key;
2875 - ECDSA engine support has been added.
2876 [Nils Larsch <nla@trustcenter.de>]
2878 *) Include some named elliptic curves, and add OIDs from X9.62,
2879 SECG, and WAP/WTLS. Each curve can be obtained from the new
2881 EC_GROUP_new_by_curve_name(),
2882 and the list of available named curves can be obtained with
2883 EC_get_builtin_curves().
2884 Also add a 'curve_name' member to EC_GROUP objects, which can be
2886 EC_GROUP_set_curve_name()
2887 EC_GROUP_get_curve_name()
2888 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2890 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2891 was actually never needed) and in BN_mul(). The removal in BN_mul()
2892 required a small change in bn_mul_part_recursive() and the addition
2893 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2894 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2895 bn_sub_words() and bn_add_words() except they take arrays with
2899 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2901 *) Cleanse PEM buffers before freeing them since they may contain
2903 [Benjamin Bennett <ben@psc.edu>]
2905 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2906 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2907 authentication-only ciphersuites.
2910 *) Since AES128 and AES256 share a single mask bit in the logic of
2911 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2912 kludge to work properly if AES128 is available and AES256 isn't.
2915 *) Expand security boundary to match 1.1.1 module.
2918 *) Remove redundant features: hash file source, editing of test vectors
2919 modify fipsld to use external fips_premain.c signature.
2922 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2923 run algorithm test programs.
2926 *) Make algorithm test programs more tolerant of whitespace.
2929 *) Have SSL/TLS server implementation tolerate "mismatched" record
2930 protocol version while receiving ClientHello even if the
2931 ClientHello is fragmented. (The server can't insist on the
2932 particular protocol version it has chosen before the ServerHello
2933 message has informed the client about his choice.)
2936 *) Load error codes if they are not already present instead of using a
2937 static variable. This allows them to be cleanly unloaded and reloaded.
2940 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2942 *) Introduce limits to prevent malicious keys being able to
2943 cause a denial of service. (CVE-2006-2940)
2944 [Steve Henson, Bodo Moeller]
2946 *) Fix ASN.1 parsing of certain invalid structures that can result
2947 in a denial of service. (CVE-2006-2937) [Steve Henson]
2949 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2950 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2952 *) Fix SSL client code which could crash if connecting to a
2953 malicious SSLv2 server. (CVE-2006-4343)
2954 [Tavis Ormandy and Will Drewry, Google Security Team]
2956 *) Change ciphersuite string processing so that an explicit
2957 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2958 will no longer include "AES128-SHA"), and any other similar
2959 ciphersuite (same bitmap) from *other* protocol versions (so that
2960 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2961 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2962 changes from 0.9.8b and 0.9.8d.
2965 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2967 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2968 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2970 *) Change the Unix randomness entropy gathering to use poll() when
2971 possible instead of select(), since the latter has some
2972 undesirable limitations.
2973 [Darryl Miles via Richard Levitte and Bodo Moeller]
2975 *) Disable rogue ciphersuites:
2977 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2978 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2979 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2981 The latter two were purportedly from
2982 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2985 Also deactive the remaining ciphersuites from
2986 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2987 unofficial, and the ID has long expired.
2990 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2991 dual-core machines) and other potential thread-safety issues.
2994 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2996 *) Adapt fipsld and the build system to link against the validated FIPS
2997 module in FIPS mode.
3000 *) Fixes for VC++ 2005 build under Windows.
3003 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3004 from a Windows bash shell such as MSYS. It is autodetected from the
3005 "config" script when run from a VC++ environment. Modify standard VC++
3006 build to use fipscanister.o from the GNU make build.
3009 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3011 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3012 The value now differs depending on if you build for FIPS or not.
3013 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3014 safely run with a non-FIPSed libcrypto, as it may crash because of
3015 the difference induced by this change.
3018 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3020 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3021 (part of SSL_OP_ALL). This option used to disable the
3022 countermeasure against man-in-the-middle protocol-version
3023 rollback in the SSL 2.0 server implementation, which is a bad
3024 idea. (CVE-2005-2969)
3026 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3027 for Information Security, National Institute of Advanced Industrial
3028 Science and Technology [AIST], Japan)]
3030 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3031 mainly for FIPS compliance and not fully integrated at this stage.
3034 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3035 the exponentiation using a fixed-length exponent. (Otherwise,
3036 the information leaked through timing could expose the secret key
3037 after many signatures; cf. Bleichenbacher's attack on DSA with
3041 *) Make a new fixed-window mod_exp implementation the default for
3042 RSA, DSA, and DH private-key operations so that the sequence of
3043 squares and multiplies and the memory access pattern are
3044 independent of the particular secret key. This will mitigate
3045 cache-timing and potential related attacks.
3047 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3048 and this is automatically used by BN_mod_exp_mont() if the new flag
3049 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3050 will use this BN flag for private exponents unless the flag
3051 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3052 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3054 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3056 *) Change the client implementation for SSLv23_method() and
3057 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3058 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3059 (Previously, the SSL 2.0 backwards compatible Client Hello
3060 message format would be used even with SSL_OP_NO_SSLv2.)
3063 *) Add support for smime-type MIME parameter in S/MIME messages which some
3067 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3068 a threadsafe manner. Modify rsa code to use new function and add calls
3069 to dsa and dh code (which had race conditions before).
3072 *) Include the fixed error library code in the C error file definitions
3073 instead of fixing them up at runtime. This keeps the error code
3074 structures constant.
3077 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3079 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3082 *) Fixes for newer kerberos headers. NB: the casts are needed because
3083 the 'length' field is signed on one version and unsigned on another
3084 with no (?) obvious way to tell the difference, without these VC++
3085 complains. Also the "definition" of FAR (blank) is no longer included
3086 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3087 some needed definitions.
3090 *) Undo Cygwin change.
3093 *) Added support for proxy certificates according to RFC 3820.
3094 Because they may be a security thread to unaware applications,
3095 they must be explicitely allowed in run-time. See
3096 docs/HOWTO/proxy_certificates.txt for further information.
3099 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3101 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3102 server and client random values. Previously
3103 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3104 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3106 This change has negligible security impact because:
3108 1. Server and client random values still have 24 bytes of pseudo random
3111 2. Server and client random values are sent in the clear in the initial
3114 3. The master secret is derived using the premaster secret (48 bytes in
3115 size for static RSA ciphersuites) as well as client server and random
3118 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3121 [Stephen Henson, reported by UK NISCC]
3123 *) Use Windows randomness collection on Cygwin.
3126 *) Fix hang in EGD/PRNGD query when communication socket is closed
3127 prematurely by EGD/PRNGD.
3128 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3130 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3133 *) Back-port of selected performance improvements from development
3134 branch, as well as improved support for PowerPC platforms.
3137 *) Add lots of checks for memory allocation failure, error codes to indicate
3138 failure and freeing up memory if a failure occurs.
3139 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3141 *) Add new -passin argument to dgst.
3144 *) Perform some character comparisons of different types in X509_NAME_cmp:
3145 this is needed for some certificates that reencode DNs into UTF8Strings
3146 (in violation of RFC3280) and can't or wont issue name rollover
3150 *) Make an explicit check during certificate validation to see that
3151 the CA setting in each certificate on the chain is correct. As a
3152 side effect always do the following basic checks on extensions,
3153 not just when there's an associated purpose to the check:
3155 - if there is an unhandled critical extension (unless the user
3156 has chosen to ignore this fault)
3157 - if the path length has been exceeded (if one is set at all)
3158 - that certain extensions fit the associated purpose (if one has
3162 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3164 *) Avoid a race condition when CRLs are checked in a multi threaded
3165 environment. This would happen due to the reordering of the revoked
3166 entries during signature checking and serial number lookup. Now the
3167 encoding is cached and the serial number sort performed under a lock.
3168 Add new STACK function sk_is_sorted().
3171 *) Add Delta CRL to the extension code.
3174 *) Various fixes to s3_pkt.c so alerts are sent properly.
3175 [David Holmes <d.holmes@f5.com>]
3177 *) Reduce the chances of duplicate issuer name and serial numbers (in
3178 violation of RFC3280) using the OpenSSL certificate creation utilities.
3179 This is done by creating a random 64 bit value for the initial serial
3180 number when a serial number file is created or when a self signed
3181 certificate is created using 'openssl req -x509'. The initial serial
3182 number file is created using 'openssl x509 -next_serial' in CA.pl
3183 rather than being initialized to 1.
3186 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3188 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3189 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3190 [Joe Orton, Steve Henson]
3192 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3194 [Joe Orton, Steve Henson]
3196 *) Make it possible to have multiple active certificates with the same
3197 subject in the CA index file. This is done only if the keyword
3198 'unique_subject' is set to 'no' in the main CA section (default
3199 if 'CA_default') of the configuration file. The value is saved
3200 with the database itself in a separate index attribute file,
3201 named like the index file with '.attr' appended to the name.
3204 *) X509 verify fixes. Disable broken certificate workarounds when
3205 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3206 keyUsage extension present. Don't accept CRLs with unhandled critical
3207 extensions: since verify currently doesn't process CRL extensions this
3208 rejects a CRL with *any* critical extensions. Add new verify error codes
3212 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3213 A clarification of RFC2560 will require the use of OCTET STRINGs and
3214 some implementations cannot handle the current raw format. Since OpenSSL
3215 copies and compares OCSP nonces as opaque blobs without any attempt at
3216 parsing them this should not create any compatibility issues.
3219 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3220 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3221 this HMAC (and other) operations are several times slower than OpenSSL
3225 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3226 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3228 *) Use the correct content when signing type "other".
3231 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3233 *) Fix various bugs revealed by running the NISCC test suite:
3235 Stop out of bounds reads in the ASN1 code when presented with
3236 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3238 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3240 If verify callback ignores invalid public key errors don't try to check
3241 certificate signature with the NULL public key.
3245 *) New -ignore_err option in ocsp application to stop the server
3246 exiting on the first error in a request.
3249 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3250 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3254 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3255 extra data after the compression methods not only for TLS 1.0
3256 but also for SSL 3.0 (as required by the specification).
3257 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3259 *) Change X509_certificate_type() to mark the key as exported/exportable
3260 when it's 512 *bits* long, not 512 bytes.
3263 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3264 blocks during encryption.
3267 *) Various fixes to base64 BIO and non blocking I/O. On write
3268 flushes were not handled properly if the BIO retried. On read
3269 data was not being buffered properly and had various logic bugs.
3270 This also affects blocking I/O when the data being decoded is a
3274 *) Various S/MIME bugfixes and compatibility changes:
3275 output correct application/pkcs7 MIME type if
3276 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3277 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3278 of files as .eml work). Correctly handle very long lines in MIME
3282 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3284 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3285 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3286 a protocol version number mismatch like a decryption error
3287 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3290 *) Turn on RSA blinding by default in the default implementation
3291 to avoid a timing attack. Applications that don't want it can call
3292 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3293 They would be ill-advised to do so in most cases.
3294 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3296 *) Change RSA blinding code so that it works when the PRNG is not
3297 seeded (in this case, the secret RSA exponent is abused as
3298 an unpredictable seed -- if it is not unpredictable, there
3299 is no point in blinding anyway). Make RSA blinding thread-safe
3300 by remembering the creator's thread ID in rsa->blinding and
3301 having all other threads use local one-time blinding factors
3302 (this requires more computation than sharing rsa->blinding, but
3303 avoids excessive locking; and if an RSA object is not shared
3304 between threads, blinding will still be very fast).
3307 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3308 ENGINE as defaults for all supported algorithms irrespective of
3309 the 'flags' parameter. 'flags' is now honoured, so applications
3310 should make sure they are passing it correctly.
3313 *) Target "mingw" now allows native Windows code to be generated in
3314 the Cygwin environment as well as with the MinGW compiler.
3317 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3319 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3320 via timing by performing a MAC computation even if incorrrect
3321 block cipher padding has been found. This is a countermeasure
3322 against active attacks where the attacker has to distinguish
3323 between bad padding and a MAC verification error. (CVE-2003-0078)
3325 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3326 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3327 Martin Vuagnoux (EPFL, Ilion)]
3329 *) Make the no-err option work as intended. The intention with no-err
3330 is not to have the whole error stack handling routines removed from
3331 libcrypto, it's only intended to remove all the function name and
3332 reason texts, thereby removing some of the footprint that may not
3333 be interesting if those errors aren't displayed anyway.
3335 NOTE: it's still possible for any application or module to have it's
3336 own set of error texts inserted. The routines are there, just not
3337 used by default when no-err is given.
3340 *) Add support for FreeBSD on IA64.
3341 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3343 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3344 Kerberos function mit_des_cbc_cksum(). Before this change,
3345 the value returned by DES_cbc_cksum() was like the one from
3346 mit_des_cbc_cksum(), except the bytes were swapped.
3347 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3349 *) Allow an application to disable the automatic SSL chain building.
3350 Before this a rather primitive chain build was always performed in
3351 ssl3_output_cert_chain(): an application had no way to send the
3352 correct chain if the automatic operation produced an incorrect result.
3354 Now the chain builder is disabled if either:
3356 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3358 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3360 The reasoning behind this is that an application would not want the
3361 auto chain building to take place if extra chain certificates are
3362 present and it might also want a means of sending no additional
3363 certificates (for example the chain has two certificates and the
3367 *) Add the possibility to build without the ENGINE framework.
3368 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3370 *) Under Win32 gmtime() can return NULL: check return value in
3371 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3374 *) DSA routines: under certain error conditions uninitialized BN objects
3375 could be freed. Solution: make sure initialization is performed early
3376 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3377 Nils Larsch <nla@trustcenter.de> via PR#459)
3380 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3381 checked on reconnect on the client side, therefore session resumption
3382 could still fail with a "ssl session id is different" error. This
3383 behaviour is masked when SSL_OP_ALL is used due to
3384 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3385 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3386 followup to PR #377.
3389 *) IA-32 assembler support enhancements: unified ELF targets, support
3390 for SCO/Caldera platforms, fix for Cygwin shared build.
3393 *) Add support for FreeBSD on sparc64. As a consequence, support for
3394 FreeBSD on non-x86 processors is separate from x86 processors on
3395 the config script, much like the NetBSD support.
3396 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3398 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3400 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3403 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3404 code (06) was taken as the first octet of the session ID and the last
3405 octet was ignored consequently. As a result SSLv2 client side session
3406 caching could not have worked due to the session ID mismatch between
3408 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3412 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3413 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3417 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3418 seems that in spite of existing for more than a year, many application
3419 author have done nothing to provide the necessary callbacks, which
3420 means that this particular engine will not work properly anywhere.
3421 This is a very unfortunate situation which forces us, in the name
3422 of usability, to give the hw_ncipher.c a static lock, which is part
3424 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3425 appear in 0.9.8 or later. We EXPECT application authors to have
3426 dealt properly with this when 0.9.8 is released (unless we actually
3427 make such changes in the libcrypto locking code that changes will
3428 have to be made anyway).
3431 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3432 octets have been read, EOF or an error occurs. Without this change
3433 some truncated ASN1 structures will not produce an error.
3436 *) Disable Heimdal support, since it hasn't been fully implemented.
3437 Still give the possibility to force the use of Heimdal, but with
3438 warnings and a request that patches get sent to openssl-dev.
3441 *) Add the VC-CE target, introduce the WINCE sysname, and add
3442 INSTALL.WCE and appropriate conditionals to make it build.
3443 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3445 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3446 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3447 edit numbers of the version.
3448 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3450 *) Introduce safe string copy and catenation functions
3451 (BUF_strlcpy() and BUF_strlcat()).
3452 [Ben Laurie (CHATS) and Richard Levitte]
3454 *) Avoid using fixed-size buffers for one-line DNs.
3455 [Ben Laurie (CHATS)]
3457 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3458 resizing buffers containing secrets, and use where appropriate.
3459 [Ben Laurie (CHATS)]
3461 *) Avoid using fixed size buffers for configuration file location.
3462 [Ben Laurie (CHATS)]
3464 *) Avoid filename truncation for various CA files.
3465 [Ben Laurie (CHATS)]
3467 *) Use sizeof in preference to magic numbers.
3468 [Ben Laurie (CHATS)]
3470 *) Avoid filename truncation in cert requests.
3471 [Ben Laurie (CHATS)]
3473 *) Add assertions to check for (supposedly impossible) buffer
3475 [Ben Laurie (CHATS)]
3477 *) Don't cache truncated DNS entries in the local cache (this could
3478 potentially lead to a spoofing attack).
3479 [Ben Laurie (CHATS)]
3481 *) Fix various buffers to be large enough for hex/decimal
3482 representations in a platform independent manner.
3483 [Ben Laurie (CHATS)]
3485 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3486 resizing buffers containing secrets, and use where appropriate.
3487 [Ben Laurie (CHATS)]
3489 *) Add BIO_indent() to avoid much slightly worrying code to do
3491 [Ben Laurie (CHATS)]
3493 *) Convert sprintf()/BIO_puts() to BIO_printf().
3494 [Ben Laurie (CHATS)]
3496 *) buffer_gets() could terminate with the buffer only half
3498 [Ben Laurie (CHATS)]
3500 *) Add assertions to prevent user-supplied crypto functions from
3501 overflowing internal buffers by having large block sizes, etc.
3502 [Ben Laurie (CHATS)]
3504 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3506 [Ben Laurie (CHATS)]
3508 *) Eliminate unused copy of key in RC4.
3509 [Ben Laurie (CHATS)]
3511 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3512 [Ben Laurie (CHATS)]
3514 *) Fix off-by-one error in EGD path.
3515 [Ben Laurie (CHATS)]
3517 *) If RANDFILE path is too long, ignore instead of truncating.
3518 [Ben Laurie (CHATS)]
3520 *) Eliminate unused and incorrectly sized X.509 structure
3522 [Ben Laurie (CHATS)]
3524 *) Eliminate unused and dangerous function knumber().
3525 [Ben Laurie (CHATS)]
3527 *) Eliminate unused and dangerous structure, KSSL_ERR.
3528 [Ben Laurie (CHATS)]
3530 *) Protect against overlong session ID context length in an encoded
3531 session object. Since these are local, this does not appear to be
3533 [Ben Laurie (CHATS)]
3535 *) Change from security patch (see 0.9.6e below) that did not affect
3536 the 0.9.6 release series:
3538 Remote buffer overflow in SSL3 protocol - an attacker could
3539 supply an oversized master key in Kerberos-enabled versions.
3541 [Ben Laurie (CHATS)]
3543 *) Change the SSL kerb5 codes to match RFC 2712.
3546 *) Make -nameopt work fully for req and add -reqopt switch.
3547 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3549 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3550 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3552 *) Make sure tests can be performed even if the corresponding algorithms
3553 have been removed entirely. This was also the last step to make
3554 OpenSSL compilable with DJGPP under all reasonable conditions.
3555 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3557 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3558 to allow version independent disabling of normally unselected ciphers,
3559 which may be activated as a side-effect of selecting a single cipher.
3561 (E.g., cipher list string "RSA" enables ciphersuites that are left
3562 out of "ALL" because they do not provide symmetric encryption.
3563 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3564 [Lutz Jaenicke, Bodo Moeller]
3566 *) Add appropriate support for separate platform-dependent build
3567 directories. The recommended way to make a platform-dependent
3568 build directory is the following (tested on Linux), maybe with
3571 # Place yourself outside of the OpenSSL source tree. In
3572 # this example, the environment variable OPENSSL_SOURCE
3573 # is assumed to contain the absolute OpenSSL source directory.
3574 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3575 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3576 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3577 mkdir -p `dirname $F`
3578 ln -s $OPENSSL_SOURCE/$F $F
3581 To be absolutely sure not to disturb the source tree, a "make clean"
3582 is a good thing. If it isn't successfull, don't worry about it,
3583 it probably means the source directory is very clean.
3586 *) Make sure any ENGINE control commands make local copies of string
3587 pointers passed to them whenever necessary. Otherwise it is possible
3588 the caller may have overwritten (or deallocated) the original string
3589 data when a later ENGINE operation tries to use the stored values.
3590 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3592 *) Improve diagnostics in file reading and command-line digests.
3593 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3595 *) Add AES modes CFB and OFB to the object database. Correct an
3596 error in AES-CFB decryption.
3599 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3600 allows existing EVP_CIPHER_CTX structures to be reused after
3601 calling EVP_*Final(). This behaviour is used by encryption
3602 BIOs and some applications. This has the side effect that
3603 applications must explicitly clean up cipher contexts with
3604 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3607 *) Check the values of dna and dnb in bn_mul_recursive before calling
3608 bn_mul_comba (a non zero value means the a or b arrays do not contain
3609 n2 elements) and fallback to bn_mul_normal if either is not zero.
3612 *) Fix escaping of non-ASCII characters when using the -subj option
3613 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3616 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3617 form for "surname", serialNumber has no short form.
3618 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3619 therefore remove "mail" short name for "internet 7".
3620 The OID for unique identifiers in X509 certificates is
3621 x500UniqueIdentifier, not uniqueIdentifier.
3622 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3625 *) Add an "init" command to the ENGINE config module and auto initialize
3626 ENGINEs. Without any "init" command the ENGINE will be initialized
3627 after all ctrl commands have been executed on it. If init=1 the
3628 ENGINE is initailized at that point (ctrls before that point are run
3629 on the uninitialized ENGINE and after on the initialized one). If
3630 init=0 then the ENGINE will not be iniatialized at all.
3633 *) Fix the 'app_verify_callback' interface so that the user-defined
3634 argument is actually passed to the callback: In the
3635 SSL_CTX_set_cert_verify_callback() prototype, the callback
3636 declaration has been changed from
3639 int (*cb)(X509_STORE_CTX *,void *);
3640 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3641 i=s->ctx->app_verify_callback(&ctx)
3642 has been changed into
3643 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3645 To update applications using SSL_CTX_set_cert_verify_callback(),
3646 a dummy argument can be added to their callback functions.
3647 [D. K. Smetters <smetters@parc.xerox.com>]
3649 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3650 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3652 *) Add and OPENSSL_LOAD_CONF define which will cause
3653 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3654 This allows older applications to transparently support certain
3655 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3656 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3657 load the config file and OPENSSL_add_all_algorithms_conf() which will
3658 always load it have also been added.
3661 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3662 Adjust NIDs and EVP layer.
3663 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3665 *) Config modules support in openssl utility.
3667 Most commands now load modules from the config file,
3668 though in a few (such as version) this isn't done
3669 because it couldn't be used for anything.
3671 In the case of ca and req the config file used is
3672 the same as the utility itself: that is the -config
3673 command line option can be used to specify an
3677 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3678 use "openssl_conf" if filename is NULL use default openssl config file.
3681 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3682 config section name. Add a new flag to tolerate a missing config file
3683 and move code to CONF_modules_load_file().
3686 *) Support for crypto accelerator cards from Accelerated Encryption
3687 Processing, www.aep.ie. (Use engine 'aep')
3688 The support was copied from 0.9.6c [engine] and adapted/corrected
3689 to work with the new engine framework.
3690 [AEP Inc. and Richard Levitte]
3692 *) Support for SureWare crypto accelerator cards from Baltimore
3693 Technologies. (Use engine 'sureware')
3694 The support was copied from 0.9.6c [engine] and adapted
3695 to work with the new engine framework.
3698 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3699 make the newer ENGINE framework commands for the CHIL engine work.
3700 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3702 *) Make it possible to produce shared libraries on ReliantUNIX.
3703 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3705 *) Add the configuration target debug-linux-ppro.
3706 Make 'openssl rsa' use the general key loading routines
3707 implemented in apps.c, and make those routines able to
3708 handle the key format FORMAT_NETSCAPE and the variant
3710 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3712 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3713 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3715 *) Add -keyform to rsautl, and document -engine.
3716 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3718 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3719 BIO_R_NO_SUCH_FILE error code rather than the generic
3720 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3723 *) Add new functions
3725 ERR_peek_last_error_line
3726 ERR_peek_last_error_line_data.
3727 These are similar to
3730 ERR_peek_error_line_data,
3731 but report on the latest error recorded rather than the first one
3732 still in the error queue.
3733 [Ben Laurie, Bodo Moeller]
3735 *) default_algorithms option in ENGINE config module. This allows things
3737 default_algorithms = ALL
3738 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3741 *) Prelminary ENGINE config module.
3744 *) New experimental application configuration code.
3747 *) Change the AES code to follow the same name structure as all other
3748 symmetric ciphers, and behave the same way. Move everything to
3749 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3750 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3752 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3753 [Ben Laurie and Theo de Raadt]
3755 *) Add option to output public keys in req command.
3756 [Massimiliano Pala madwolf@openca.org]
3758 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3759 (up to about 10% better than before for P-192 and P-224).
3762 *) New functions/macros
3764 SSL_CTX_set_msg_callback(ctx, cb)
3765 SSL_CTX_set_msg_callback_arg(ctx, arg)
3766 SSL_set_msg_callback(ssl, cb)
3767 SSL_set_msg_callback_arg(ssl, arg)
3769 to request calling a callback function
3771 void cb(int write_p, int version, int content_type,
3772 const void *buf, size_t len, SSL *ssl, void *arg)
3774 whenever a protocol message has been completely received
3775 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3776 protocol version according to which the SSL library interprets
3777 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3778 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3779 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3780 specification (change_cipher_spec(20), alert(21), handshake(22)).
3781 'buf' and 'len' point to the actual message, 'ssl' to the
3782 SSL object, and 'arg' is the application-defined value set by
3783 SSL[_CTX]_set_msg_callback_arg().
3785 'openssl s_client' and 'openssl s_server' have new '-msg' options
3786 to enable a callback that displays all protocol messages.
3789 *) Change the shared library support so shared libraries are built as
3790 soon as the corresponding static library is finished, and thereby get
3791 openssl and the test programs linked against the shared library.
3792 This still only happens when the keyword "shard" has been given to
3793 the configuration scripts.
3795 NOTE: shared library support is still an experimental thing, and
3796 backward binary compatibility is still not guaranteed.
3797 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3799 *) Add support for Subject Information Access extension.
3800 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3802 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3803 additional bytes when new memory had to be allocated, not just
3804 when reusing an existing buffer.
3807 *) New command line and configuration option 'utf8' for the req command.
3808 This allows field values to be specified as UTF8 strings.
3811 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3812 runs for the former and machine-readable output for the latter.
3815 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3816 of the e-mail address in the DN (i.e., it will go into a certificate
3817 extension only). The new configuration file option 'email_in_dn = no'
3818 has the same effect.
3819 [Massimiliano Pala madwolf@openca.org]
3821 *) Change all functions with names starting with des_ to be starting
3822 with DES_ instead. Add wrappers that are compatible with libdes,
3823 but are named _ossl_old_des_*. Finally, add macros that map the
3824 des_* symbols to the corresponding _ossl_old_des_* if libdes
3825 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3826 desired, the des_* symbols will be mapped to DES_*, with one
3829 Since we provide two compatibility mappings, the user needs to
3830 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3831 compatibility is desired. The default (i.e., when that macro
3832 isn't defined) is OpenSSL 0.9.6c compatibility.
3834 There are also macros that enable and disable the support of old
3835 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3836 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3837 are defined, the default will apply: to support the old des routines.
3839 In either case, one must include openssl/des.h to get the correct
3840 definitions. Do not try to just include openssl/des_old.h, that
3843 NOTE: This is a major break of an old API into a new one. Software
3844 authors are encouraged to switch to the DES_ style functions. Some
3845 time in the future, des_old.h and the libdes compatibility functions
3846 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3847 default), and then completely removed.
3850 *) Test for certificates which contain unsupported critical extensions.
3851 If such a certificate is found during a verify operation it is
3852 rejected by default: this behaviour can be overridden by either
3853 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3854 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3855 X509_supported_extension() has also been added which returns 1 if a
3856 particular extension is supported.
3859 *) Modify the behaviour of EVP cipher functions in similar way to digests
3860 to retain compatibility with existing code.
3863 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3864 compatibility with existing code. In particular the 'ctx' parameter does
3865 not have to be to be initialized before the call to EVP_DigestInit() and
3866 it is tidied up after a call to EVP_DigestFinal(). New function
3867 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3868 EVP_MD_CTX_copy() changed to not require the destination to be
3869 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3870 requires the destination to be valid.
3872 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3873 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3876 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3877 so that complete 'Handshake' protocol structures are kept in memory
3878 instead of overwriting 'msg_type' and 'length' with 'body' data.
3881 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3882 [Massimo Santin via Richard Levitte]
3884 *) Major restructuring to the underlying ENGINE code. This includes
3885 reduction of linker bloat, separation of pure "ENGINE" manipulation
3886 (initialisation, etc) from functionality dealing with implementations
3887 of specific crypto iterfaces. This change also introduces integrated
3888 support for symmetric ciphers and digest implementations - so ENGINEs
3889 can now accelerate these by providing EVP_CIPHER and EVP_MD
3890 implementations of their own. This is detailed in crypto/engine/README
3891 as it couldn't be adequately described here. However, there are a few
3892 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3893 were changed in the original introduction of ENGINE code have now
3894 reverted back - the hooking from this code to ENGINE is now a good
3895 deal more passive and at run-time, operations deal directly with
3896 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3897 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3898 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3899 they were not being used by the framework as there is no concept of a
3900 BIGNUM_METHOD and they could not be generalised to the new
3901 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3902 ENGINE_cpy() has been removed as it cannot be consistently defined in
3906 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3909 *) Change mkdef.pl to sort symbols that get the same entry number,
3910 and make sure the automatically generated functions ERR_load_*
3911 become part of libeay.num as well.
3914 *) New function SSL_renegotiate_pending(). This returns true once
3915 renegotiation has been requested (either SSL_renegotiate() call
3916 or HelloRequest/ClientHello receveived from the peer) and becomes
3917 false once a handshake has been completed.
3918 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3919 sends a HelloRequest, but does not ensure that a handshake takes
3920 place. SSL_renegotiate_pending() is useful for checking if the
3921 client has followed the request.)
3924 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3925 By default, clients may request session resumption even during
3926 renegotiation (if session ID contexts permit); with this option,
3927 session resumption is possible only in the first handshake.
3929 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3930 more bits available for options that should not be part of
3931 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3934 *) Add some demos for certificate and certificate request creation.
3937 *) Make maximum certificate chain size accepted from the peer application
3938 settable (SSL*_get/set_max_cert_list()), as proposed by
3939 "Douglas E. Engert" <deengert@anl.gov>.
3942 *) Add support for shared libraries for Unixware-7
3943 (Boyd Lynn Gerber <gerberb@zenez.com>).
3946 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3947 be done prior to destruction. Use this to unload error strings from
3948 ENGINEs that load their own error strings. NB: This adds two new API
3949 functions to "get" and "set" this destroy handler in an ENGINE.
3952 *) Alter all existing ENGINE implementations (except "openssl" and
3953 "openbsd") to dynamically instantiate their own error strings. This
3954 makes them more flexible to be built both as statically-linked ENGINEs
3955 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3956 Also, add stub code to each that makes building them as self-contained
3957 shared-libraries easier (see README.ENGINE).
3960 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3961 implementations into applications that are completely implemented in
3962 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3963 commands that can be used to configure what shared-library to load and
3964 to control aspects of the way it is handled. Also, made an update to
3965 the README.ENGINE file that brings its information up-to-date and
3966 provides some information and instructions on the "dynamic" ENGINE
3967 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3970 *) Make it possible to unload ranges of ERR strings with a new
3971 "ERR_unload_strings" function.
3974 *) Add a copy() function to EVP_MD.
3977 *) Make EVP_MD routines take a context pointer instead of just the
3978 md_data void pointer.
3981 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3982 that the digest can only process a single chunk of data
3983 (typically because it is provided by a piece of
3984 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3985 is only going to provide a single chunk of data, and hence the
3986 framework needn't accumulate the data for oneshot drivers.
3989 *) As with "ERR", make it possible to replace the underlying "ex_data"
3990 functions. This change also alters the storage and management of global
3991 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3992 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3993 index counters. The API functions that use this state have been changed
3994 to take a "class_index" rather than pointers to the class's local STACK
3995 and counter, and there is now an API function to dynamically create new
3996 classes. This centralisation allows us to (a) plug a lot of the
3997 thread-safety problems that existed, and (b) makes it possible to clean
3998 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3999 such data would previously have always leaked in application code and
4000 workarounds were in place to make the memory debugging turn a blind eye
4001 to it. Application code that doesn't use this new function will still
4002 leak as before, but their memory debugging output will announce it now
4003 rather than letting it slide.
4005 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4006 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4007 has a return value to indicate success or failure.
4010 *) Make it possible to replace the underlying "ERR" functions such that the
4011 global state (2 LHASH tables and 2 locks) is only used by the "default"
4012 implementation. This change also adds two functions to "get" and "set"
4013 the implementation prior to it being automatically set the first time
4014 any other ERR function takes place. Ie. an application can call "get",
4015 pass the return value to a module it has just loaded, and that module
4016 can call its own "set" function using that value. This means the
4017 module's "ERR" operations will use (and modify) the error state in the
4018 application and not in its own statically linked copy of OpenSSL code.
4021 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4022 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4023 the operation, and provides a more encapsulated way for external code
4024 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4025 to use these functions rather than manually incrementing the counts.
4027 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4030 *) Add EVP test program.
4033 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4036 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4037 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4038 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4039 These allow a CRL to be built without having to access X509_CRL fields
4040 directly. Modify 'ca' application to use new functions.
4043 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4044 bug workarounds. Rollback attack detection is a security feature.
4045 The problem will only arise on OpenSSL servers when TLSv1 is not
4046 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4047 Software authors not wanting to support TLSv1 will have special reasons
4048 for their choice and can explicitly enable this option.
4049 [Bodo Moeller, Lutz Jaenicke]
4051 *) Rationalise EVP so it can be extended: don't include a union of
4052 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4053 (similar to those existing for EVP_CIPHER_CTX).
4058 EVP_MD_CTX_init(&md); /* new function call */
4059 EVP_DigestInit(&md, EVP_sha1());
4060 EVP_DigestUpdate(&md, in, len);
4061 EVP_DigestFinal(&md, out, NULL);
4062 EVP_MD_CTX_cleanup(&md); /* new function call */
4066 *) Make DES key schedule conform to the usual scheme, as well as
4067 correcting its structure. This means that calls to DES functions
4068 now have to pass a pointer to a des_key_schedule instead of a
4069 plain des_key_schedule (which was actually always a pointer
4072 des_key_schedule ks;
4074 des_set_key_checked(..., &ks);
4075 des_ncbc_encrypt(..., &ks, ...);
4077 (Note that a later change renames 'des_...' into 'DES_...'.)
4080 *) Initial reduction of linker bloat: the use of some functions, such as
4081 PEM causes large amounts of unused functions to be linked in due to
4082 poor organisation. For example pem_all.c contains every PEM function
4083 which has a knock on effect of linking in large amounts of (unused)
4084 ASN1 code. Grouping together similar functions and splitting unrelated
4085 functions prevents this.
4088 *) Cleanup of EVP macros.
4091 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4092 correct _ecb suffix.
4095 *) Add initial OCSP responder support to ocsp application. The
4096 revocation information is handled using the text based index
4097 use by the ca application. The responder can either handle
4098 requests generated internally, supplied in files (for example
4099 via a CGI script) or using an internal minimal server.
4102 *) Add configuration choices to get zlib compression for TLS.
4105 *) Changes to Kerberos SSL for RFC 2712 compliance:
4106 1. Implemented real KerberosWrapper, instead of just using
4107 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4108 2. Implemented optional authenticator field of KerberosWrapper.
4110 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4111 and authenticator structs; see crypto/krb5/.
4113 Generalized Kerberos calls to support multiple Kerberos libraries.
4114 [Vern Staats <staatsvr@asc.hpc.mil>,
4115 Jeffrey Altman <jaltman@columbia.edu>
4116 via Richard Levitte]
4118 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4119 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4120 values for each of the key sizes rather than having just
4121 parameters (and 'speed' generating keys each time).
4124 *) Speed up EVP routines.
4127 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4128 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4129 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4130 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4132 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4133 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4134 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4137 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4139 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4142 *) Added the OS2-EMX target.
4143 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4145 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4146 to support NCONF routines in extension code. New function CONF_set_nconf()
4147 to allow functions which take an NCONF to also handle the old LHASH
4148 structure: this means that the old CONF compatible routines can be
4149 retained (in particular wrt extensions) without having to duplicate the
4150 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4153 *) Enhance the general user interface with mechanisms for inner control
4154 and with possibilities to have yes/no kind of prompts.
4157 *) Change all calls to low level digest routines in the library and
4158 applications to use EVP. Add missing calls to HMAC_cleanup() and
4159 don't assume HMAC_CTX can be copied using memcpy().
4160 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4162 *) Add the possibility to control engines through control names but with
4163 arbitrary arguments instead of just a string.
4164 Change the key loaders to take a UI_METHOD instead of a callback
4165 function pointer. NOTE: this breaks binary compatibility with earlier
4166 versions of OpenSSL [engine].
4167 Adapt the nCipher code for these new conditions and add a card insertion
4171 *) Enhance the general user interface with mechanisms to better support
4172 dialog box interfaces, application-defined prompts, the possibility
4173 to use defaults (for example default passwords from somewhere else)
4174 and interrupts/cancellations.
4177 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4178 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4181 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4182 tidy up some unnecessarily weird code in 'sk_new()').
4183 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4185 *) Change the key loading routines for ENGINEs to use the same kind
4186 callback (pem_password_cb) as all other routines that need this
4190 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4191 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4192 than this minimum value is recommended.
4195 *) New random seeder for OpenVMS, using the system process statistics
4196 that are easily reachable.
4199 *) Windows apparently can't transparently handle global
4200 variables defined in DLLs. Initialisations such as:
4202 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4204 wont compile. This is used by the any applications that need to
4205 declare their own ASN1 modules. This was fixed by adding the option
4206 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4207 needed for static libraries under Win32.
4210 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4211 setting of purpose and trust fields. New X509_STORE trust and
4212 purpose functions and tidy up setting in other SSL functions.
4215 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4216 structure. These are inherited by X509_STORE_CTX when it is
4217 initialised. This allows various defaults to be set in the
4218 X509_STORE structure (such as flags for CRL checking and custom
4219 purpose or trust settings) for functions which only use X509_STORE_CTX
4220 internally such as S/MIME.
4222 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4223 trust settings if they are not set in X509_STORE. This allows X509_STORE
4224 purposes and trust (in S/MIME for example) to override any set by default.
4226 Add command line options for CRL checking to smime, s_client and s_server
4230 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4231 are set then the CRL is looked up in the X509_STORE structure and
4232 its validity and signature checked, then if the certificate is found
4233 in the CRL the verify fails with a revoked error.
4235 Various new CRL related callbacks added to X509_STORE_CTX structure.
4237 Command line options added to 'verify' application to support this.
4239 This needs some additional work, such as being able to handle multiple
4240 CRLs with different times, extension based lookup (rather than just
4241 by subject name) and ultimately more complete V2 CRL extension
4245 *) Add a general user interface API (crypto/ui/). This is designed
4246 to replace things like des_read_password and friends (backward
4247 compatibility functions using this new API are provided).
4248 The purpose is to remove prompting functions from the DES code
4249 section as well as provide for prompting through dialog boxes in
4250 a window system and the like.
4253 *) Add "ex_data" support to ENGINE so implementations can add state at a
4254 per-structure level rather than having to store it globally.
4257 *) Make it possible for ENGINE structures to be copied when retrieved by
4258 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4259 This causes the "original" ENGINE structure to act like a template,
4260 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4261 operational state can be localised to each ENGINE structure, despite the
4262 fact they all share the same "methods". New ENGINE structures returned in
4263 this case have no functional references and the return value is the single
4264 structural reference. This matches the single structural reference returned
4265 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4269 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4270 needs to match any other type at all we need to manually clear the
4274 *) Changes to the "openssl engine" utility to include;
4275 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4276 about an ENGINE's available control commands.
4277 - executing control commands from command line arguments using the
4278 '-pre' and '-post' switches. '-post' is only used if '-t' is
4279 specified and the ENGINE is successfully initialised. The syntax for
4280 the individual commands are colon-separated, for example;
4281 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4284 *) New dynamic control command support for ENGINEs. ENGINEs can now
4285 declare their own commands (numbers), names (strings), descriptions,
4286 and input types for run-time discovery by calling applications. A
4287 subset of these commands are implicitly classed as "executable"
4288 depending on their input type, and only these can be invoked through
4289 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4290 can be based on user input, config files, etc). The distinction is
4291 that "executable" commands cannot return anything other than a boolean
4292 result and can only support numeric or string input, whereas some
4293 discoverable commands may only be for direct use through
4294 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4295 pointers, or other custom uses. The "executable" commands are to
4296 support parameterisations of ENGINE behaviour that can be
4297 unambiguously defined by ENGINEs and used consistently across any
4298 OpenSSL-based application. Commands have been added to all the
4299 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4300 control over shared-library paths without source code alterations.
4303 *) Changed all ENGINE implementations to dynamically allocate their
4304 ENGINEs rather than declaring them statically. Apart from this being
4305 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4306 this also allows the implementations to compile without using the
4307 internal engine_int.h header.
4310 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4311 'const' value. Any code that should be able to modify a RAND_METHOD
4312 should already have non-const pointers to it (ie. they should only
4313 modify their own ones).
4316 *) Made a variety of little tweaks to the ENGINE code.
4317 - "atalla" and "ubsec" string definitions were moved from header files
4318 to C code. "nuron" string definitions were placed in variables
4319 rather than hard-coded - allowing parameterisation of these values
4320 later on via ctrl() commands.
4321 - Removed unused "#if 0"'d code.
4322 - Fixed engine list iteration code so it uses ENGINE_free() to release
4323 structural references.
4324 - Constified the RAND_METHOD element of ENGINE structures.
4325 - Constified various get/set functions as appropriate and added
4326 missing functions (including a catch-all ENGINE_cpy that duplicates
4327 all ENGINE values onto a new ENGINE except reference counts/state).
4328 - Removed NULL parameter checks in get/set functions. Setting a method
4329 or function to NULL is a way of cancelling out a previously set
4330 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4331 and doesn't justify the extra error symbols and code.
4332 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4333 flags from engine_int.h to engine.h.
4334 - Changed prototypes for ENGINE handler functions (init(), finish(),
4335 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4338 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4339 to the algorithm using long division. The binary algorithm can be
4340 used only if the modulus is odd. On 32-bit systems, it is faster
4341 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4342 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4343 up to 450 bits. In 64-bit environments, the binary algorithm
4344 appears to be advantageous for much longer moduli; here we use it
4345 for moduli up to 2048 bits.
4348 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4349 could not support the combine flag in choice fields.
4352 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4353 extensions from a certificate request to the certificate.
4356 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4357 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4358 file: this allows the display of the certificate about to be
4359 signed to be customised, to allow certain fields to be included
4360 or excluded and extension details. The old system didn't display
4361 multicharacter strings properly, omitted fields not in the policy
4362 and couldn't display additional details such as extensions.
4365 *) Function EC_POINTs_mul for multiple scalar multiplication
4366 of an arbitrary number of elliptic curve points
4367 \sum scalars[i]*points[i],
4368 optionally including the generator defined for the EC_GROUP:
4369 scalar*generator + \sum scalars[i]*points[i].
4371 EC_POINT_mul is a simple wrapper function for the typical case
4372 that the point list has just one item (besides the optional
4376 *) First EC_METHODs for curves over GF(p):
4378 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4379 operations and provides various method functions that can also
4380 operate with faster implementations of modular arithmetic.
4382 EC_GFp_mont_method() reuses most functions that are part of
4383 EC_GFp_simple_method, but uses Montgomery arithmetic.
4385 [Bodo Moeller; point addition and point doubling
4386 implementation directly derived from source code provided by
4387 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4389 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4390 crypto/ec/ec_lib.c):
4392 Curves are EC_GROUP objects (with an optional group generator)
4393 based on EC_METHODs that are built into the library.
4395 Points are EC_POINT objects based on EC_GROUP objects.
4397 Most of the framework would be able to handle curves over arbitrary
4398 finite fields, but as there are no obvious types for fields other
4399 than GF(p), some functions are limited to that for now.
4402 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4403 that the file contains a complete HTTP response.
4406 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4407 change the def and num file printf format specifier from "%-40sXXX"
4408 to "%-39s XXX". The latter will always guarantee a space after the
4409 field while the former will cause them to run together if the field
4410 is 40 of more characters long.
4413 *) Constify the cipher and digest 'method' functions and structures
4414 and modify related functions to take constant EVP_MD and EVP_CIPHER
4418 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4419 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4422 *) Modify EVP_Digest*() routines so they now return values. Although the
4423 internal software routines can never fail additional hardware versions
4427 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4429 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4430 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4433 ERR_R_NESTED_ASN1_ERROR
4435 ERR_R_MISSING_ASN1_EOS
4436 were 4 .. 9, conflicting with
4437 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4439 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4440 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4442 Add new error code 'ERR_R_INTERNAL_ERROR'.
4445 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4449 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4450 sets the subject name for a new request or supersedes the
4451 subject name in a given request. Formats that can be parsed are
4452 'CN=Some Name, OU=myOU, C=IT'
4454 'CN=Some Name/OU=myOU/C=IT'.
4456 Add options '-batch' and '-verbose' to 'openssl req'.
4457 [Massimiliano Pala <madwolf@hackmasters.net>]
4459 *) Introduce the possibility to access global variables through
4460 functions on platform were that's the best way to handle exporting
4461 global variables in shared libraries. To enable this functionality,
4462 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4463 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4464 is normally done by Configure or something similar).
4466 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4467 in the source file (foo.c) like this:
4469 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4470 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4472 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4473 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4475 OPENSSL_DECLARE_GLOBAL(int,foo);
4476 #define foo OPENSSL_GLOBAL_REF(foo)
4477 OPENSSL_DECLARE_GLOBAL(double,bar);
4478 #define bar OPENSSL_GLOBAL_REF(bar)
4480 The #defines are very important, and therefore so is including the
4481 header file everywhere where the defined globals are used.
4483 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4484 of ASN.1 items, but that structure is a bit different.
4486 The largest change is in util/mkdef.pl which has been enhanced with
4487 better and easier to understand logic to choose which symbols should
4488 go into the Windows .def files as well as a number of fixes and code
4489 cleanup (among others, algorithm keywords are now sorted
4490 lexicographically to avoid constant rewrites).
4493 *) In BN_div() keep a copy of the sign of 'num' before writing the
4494 result to 'rm' because if rm==num the value will be overwritten
4495 and produce the wrong result if 'num' is negative: this caused
4496 problems with BN_mod() and BN_nnmod().
4499 *) Function OCSP_request_verify(). This checks the signature on an
4500 OCSP request and verifies the signer certificate. The signer
4501 certificate is just checked for a generic purpose and OCSP request
4505 *) Add OCSP_check_validity() function to check the validity of OCSP
4506 responses. OCSP responses are prepared in real time and may only
4507 be a few seconds old. Simply checking that the current time lies
4508 between thisUpdate and nextUpdate max reject otherwise valid responses
4509 caused by either OCSP responder or client clock inaccuracy. Instead
4510 we allow thisUpdate and nextUpdate to fall within a certain period of
4511 the current time. The age of the response can also optionally be
4512 checked. Two new options -validity_period and -status_age added to
4516 *) If signature or public key algorithm is unrecognized print out its
4517 OID rather that just UNKNOWN.
4520 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4521 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4522 ID to be generated from the issuer certificate alone which can then be
4523 passed to OCSP_id_issuer_cmp().
4526 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4527 ASN1 modules to export functions returning ASN1_ITEM pointers
4528 instead of the ASN1_ITEM structures themselves. This adds several
4529 new macros which allow the underlying ASN1 function/structure to
4530 be accessed transparently. As a result code should not use ASN1_ITEM
4531 references directly (such as &X509_it) but instead use the relevant
4532 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4533 use of the new ASN1 code on platforms where exporting structures
4534 is problematical (for example in shared libraries) but exporting
4535 functions returning pointers to structures is not.
4538 *) Add support for overriding the generation of SSL/TLS session IDs.
4539 These callbacks can be registered either in an SSL_CTX or per SSL.
4540 The purpose of this is to allow applications to control, if they wish,
4541 the arbitrary values chosen for use as session IDs, particularly as it
4542 can be useful for session caching in multiple-server environments. A
4543 command-line switch for testing this (and any client code that wishes
4544 to use such a feature) has been added to "s_server".
4545 [Geoff Thorpe, Lutz Jaenicke]
4547 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4548 of the form '#if defined(...) || defined(...) || ...' and
4549 '#if !defined(...) && !defined(...) && ...'. This also avoids
4550 the growing number of special cases it was previously handling.
4553 *) Make all configuration macros available for application by making
4554 sure they are available in opensslconf.h, by giving them names starting
4555 with "OPENSSL_" to avoid conflicts with other packages and by making
4556 sure e_os2.h will cover all platform-specific cases together with
4558 Additionally, it is now possible to define configuration/platform-
4559 specific names (called "system identities"). In the C code, these
4560 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4561 macro with the name beginning with "OPENSSL_SYS_", which is determined
4562 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4566 *) New option -set_serial to 'req' and 'x509' this allows the serial
4567 number to use to be specified on the command line. Previously self
4568 signed certificates were hard coded with serial number 0 and the
4569 CA options of 'x509' had to use a serial number in a file which was
4573 *) New options to 'ca' utility to support V2 CRL entry extensions.
4574 Currently CRL reason, invalidity date and hold instruction are
4575 supported. Add new CRL extensions to V3 code and some new objects.
4578 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4579 disable standard block padding (aka PKCS#5 padding) in the EVP
4580 API, which was previously mandatory. This means that the data is
4581 not padded in any way and so the total length much be a multiple
4582 of the block size, otherwise an error occurs.
4585 *) Initial (incomplete) OCSP SSL support.
4588 *) New function OCSP_parse_url(). This splits up a URL into its host,
4589 port and path components: primarily to parse OCSP URLs. New -url
4590 option to ocsp utility.
4593 *) New nonce behavior. The return value of OCSP_check_nonce() now
4594 reflects the various checks performed. Applications can decide
4595 whether to tolerate certain situations such as an absent nonce
4596 in a response when one was present in a request: the ocsp application
4597 just prints out a warning. New function OCSP_add1_basic_nonce()
4598 this is to allow responders to include a nonce in a response even if
4599 the request is nonce-less.
4602 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4603 skipped when using openssl x509 multiple times on a single input file,
4604 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4607 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4608 set string type: to handle setting ASN1_TIME structures. Fix ca
4609 utility to correctly initialize revocation date of CRLs.
4612 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4613 the clients preferred ciphersuites and rather use its own preferences.
4614 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4615 Internet Explorer by ensuring unchanged hash method during stepup.
4616 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4619 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4620 to aes and add a new 'exist' option to print out symbols that don't
4624 *) Additional options to ocsp utility to allow flags to be set and
4625 additional certificates supplied.
4628 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4629 OCSP client a number of certificate to only verify the response
4633 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4634 handle the new API. Currently only ECB, CBC modes supported. Add new
4637 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4638 Encryption Standard (AES) Ciphersuites for Transport Layer
4639 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4640 not enabled by default and were not part of the "ALL" ciphersuite
4641 alias because they were not yet official; they could be
4642 explicitly requested by specifying the "AESdraft" ciphersuite
4643 group alias. In the final release of OpenSSL 0.9.7, the group
4644 alias is called "AES" and is part of "ALL".)
4645 [Ben Laurie, Steve Henson, Bodo Moeller]
4647 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4648 request to response.
4651 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4652 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4653 extract information from a certificate request. OCSP_response_create()
4654 creates a response and optionally adds a basic response structure.
4655 OCSP_basic_add1_status() adds a complete single response to a basic
4656 response and returns the OCSP_SINGLERESP structure just added (to allow
4657 extensions to be included for example). OCSP_basic_add1_cert() adds a
4658 certificate to a basic response and OCSP_basic_sign() signs a basic
4659 response with various flags. New helper functions ASN1_TIME_check()
4660 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4661 (converts ASN1_TIME to GeneralizedTime).
4664 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4665 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4666 structure from a certificate. X509_pubkey_digest() digests the public_key
4667 contents: this is used in various key identifiers.
4670 *) Make sk_sort() tolerate a NULL argument.
4671 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4673 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4674 passed by the function are trusted implicitly. If any of them signed the
4675 response then it is assumed to be valid and is not verified.
4678 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4679 to data. This was previously part of the PKCS7 ASN1 code. This
4680 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4681 [Steve Henson, reported by Kenneth R. Robinette
4682 <support@securenetterm.com>]
4684 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4685 routines: without these tracing memory leaks is very painful.
4686 Fix leaks in PKCS12 and PKCS7 routines.
4689 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4690 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4691 effectively meant GeneralizedTime would never be used. Now it
4692 is initialised to -1 but X509_time_adj() now has to check the value
4693 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4694 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4695 [Steve Henson, reported by Kenneth R. Robinette
4696 <support@securenetterm.com>]
4698 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4699 result in a zero length in the ASN1_INTEGER structure which was
4700 not consistent with the structure when d2i_ASN1_INTEGER() was used
4701 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4702 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4703 where it did not print out a minus for negative ASN1_INTEGER.
4706 *) Add summary printout to ocsp utility. The various functions which
4707 convert status values to strings have been renamed to:
4708 OCSP_response_status_str(), OCSP_cert_status_str() and
4709 OCSP_crl_reason_str() and are no longer static. New options
4710 to verify nonce values and to disable verification. OCSP response
4711 printout format cleaned up.
4714 *) Add additional OCSP certificate checks. These are those specified
4715 in RFC2560. This consists of two separate checks: the CA of the
4716 certificate being checked must either be the OCSP signer certificate
4717 or the issuer of the OCSP signer certificate. In the latter case the
4718 OCSP signer certificate must contain the OCSP signing extended key
4719 usage. This check is performed by attempting to match the OCSP
4720 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4721 in the OCSP_CERTID structures of the response.
4724 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4725 and related routines. This uses the standard OpenSSL certificate
4726 verify routines to perform initial checks (just CA validity) and
4727 to obtain the certificate chain. Then additional checks will be
4728 performed on the chain. Currently the root CA is checked to see
4729 if it is explicitly trusted for OCSP signing. This is used to set
4730 a root CA as a global signing root: that is any certificate that
4731 chains to that CA is an acceptable OCSP signing certificate.
4734 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4735 extensions from a separate configuration file.
4736 As when reading extensions from the main configuration file,
4737 the '-extensions ...' option may be used for specifying the
4739 [Massimiliano Pala <madwolf@comune.modena.it>]
4741 *) New OCSP utility. Allows OCSP requests to be generated or
4742 read. The request can be sent to a responder and the output
4743 parsed, outputed or printed in text form. Not complete yet:
4744 still needs to check the OCSP response validity.
4747 *) New subcommands for 'openssl ca':
4748 'openssl ca -status <serial>' prints the status of the cert with
4749 the given serial number (according to the index file).
4750 'openssl ca -updatedb' updates the expiry status of certificates
4752 [Massimiliano Pala <madwolf@comune.modena.it>]
4754 *) New '-newreq-nodes' command option to CA.pl. This is like
4755 '-newreq', but calls 'openssl req' with the '-nodes' option
4756 so that the resulting key is not encrypted.
4757 [Damien Miller <djm@mindrot.org>]
4759 *) New configuration for the GNU Hurd.
4760 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4762 *) Initial code to implement OCSP basic response verify. This
4763 is currently incomplete. Currently just finds the signer's
4764 certificate and verifies the signature on the response.
4767 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4768 value of OPENSSLDIR. This is available via the new '-d' option
4769 to 'openssl version', and is also included in 'openssl version -a'.
4772 *) Allowing defining memory allocation callbacks that will be given
4773 file name and line number information in additional arguments
4774 (a const char* and an int). The basic functionality remains, as
4775 well as the original possibility to just replace malloc(),
4776 realloc() and free() by functions that do not know about these
4777 additional arguments. To register and find out the current
4778 settings for extended allocation functions, the following
4779 functions are provided:
4781 CRYPTO_set_mem_ex_functions
4782 CRYPTO_set_locked_mem_ex_functions
4783 CRYPTO_get_mem_ex_functions
4784 CRYPTO_get_locked_mem_ex_functions
4786 These work the same way as CRYPTO_set_mem_functions and friends.
4787 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4788 extended allocation function is enabled.
4789 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4790 a conventional allocation function is enabled.
4791 [Richard Levitte, Bodo Moeller]
4793 *) Finish off removing the remaining LHASH function pointer casts.
4794 There should no longer be any prototype-casting required when using
4795 the LHASH abstraction, and any casts that remain are "bugs". See
4796 the callback types and macros at the head of lhash.h for details
4797 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4800 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4801 If /dev/[u]random devices are not available or do not return enough
4802 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4804 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4805 /etc/entropy will be queried once each in this sequence, quering stops
4806 when enough entropy was collected without querying more sockets.
4809 *) Change the Unix RAND_poll() variant to be able to poll several
4810 random devices, as specified by DEVRANDOM, until a sufficient amount
4811 of data has been collected. We spend at most 10 ms on each file
4812 (select timeout) and read in non-blocking mode. DEVRANDOM now
4813 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4814 (previously it was just the string "/dev/urandom"), so on typical
4815 platforms the 10 ms delay will never occur.
4816 Also separate out the Unix variant to its own file, rand_unix.c.
4817 For VMS, there's a currently-empty rand_vms.c.
4820 *) Move OCSP client related routines to ocsp_cl.c. These
4821 provide utility functions which an application needing
4822 to issue a request to an OCSP responder and analyse the
4823 response will typically need: as opposed to those which an
4824 OCSP responder itself would need which will be added later.
4826 OCSP_request_sign() signs an OCSP request with an API similar
4827 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4828 response. OCSP_response_get1_basic() extracts basic response
4829 from response. OCSP_resp_find_status(): finds and extracts status
4830 information from an OCSP_CERTID structure (which will be created
4831 when the request structure is built). These are built from lower
4832 level functions which work on OCSP_SINGLERESP structures but
4833 wont normally be used unless the application wishes to examine
4834 extensions in the OCSP response for example.
4836 Replace nonce routines with a pair of functions.
4837 OCSP_request_add1_nonce() adds a nonce value and optionally
4838 generates a random value. OCSP_check_nonce() checks the
4839 validity of the nonce in an OCSP response.
4842 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4843 This doesn't copy the supplied OCSP_CERTID and avoids the
4844 need to free up the newly created id. Change return type
4845 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4846 This can then be used to add extensions to the request.
4847 Deleted OCSP_request_new(), since most of its functionality
4848 is now in OCSP_REQUEST_new() (and the case insensitive name
4849 clash) apart from the ability to set the request name which
4850 will be added elsewhere.
4853 *) Update OCSP API. Remove obsolete extensions argument from
4854 various functions. Extensions are now handled using the new
4855 OCSP extension code. New simple OCSP HTTP function which
4856 can be used to send requests and parse the response.
4859 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4860 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4861 uses the special reorder version of SET OF to sort the attributes
4862 and reorder them to match the encoded order. This resolves a long
4863 standing problem: a verify on a PKCS7 structure just after signing
4864 it used to fail because the attribute order did not match the
4865 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4866 it uses the received order. This is necessary to tolerate some broken
4867 software that does not order SET OF. This is handled by encoding
4868 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4869 to produce the required SET OF.
4872 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4873 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4874 files to get correct declarations of the ASN.1 item variables.
4877 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4878 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4879 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4880 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4881 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4882 ASN1_ITEM and no wrapper functions.
4885 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4886 replace the old function pointer based I/O routines. Change most of
4887 the *_d2i_bio() and *_d2i_fp() functions to use these.
4890 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4891 lines, recognice more "algorithms" that can be deselected, and make
4892 it complain about algorithm deselection that isn't recognised.
4895 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4896 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4897 to use new functions. Add NO_ASN1_OLD which can be set to remove
4898 some old style ASN1 functions: this can be used to determine if old
4899 code will still work when these eventually go away.
4902 *) New extension functions for OCSP structures, these follow the
4903 same conventions as certificates and CRLs.
4906 *) New function X509V3_add1_i2d(). This automatically encodes and
4907 adds an extension. Its behaviour can be customised with various
4908 flags to append, replace or delete. Various wrappers added for
4909 certifcates and CRLs.
4912 *) Fix to avoid calling the underlying ASN1 print routine when
4913 an extension cannot be parsed. Correct a typo in the
4914 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4917 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4918 entries for variables.
4921 *) Add functionality to apps/openssl.c for detecting locking
4922 problems: As the program is single-threaded, all we have
4923 to do is register a locking callback using an array for
4924 storing which locks are currently held by the program.
4927 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4928 SSL_get_ex_data_X509_STORE_idx(), which is used in
4929 ssl_verify_cert_chain() and thus can be called at any time
4930 during TLS/SSL handshakes so that thread-safety is essential.
4931 Unfortunately, the ex_data design is not at all suited
4932 for multi-threaded use, so it probably should be abolished.
4935 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4936 [Broadcom, tweaked and integrated by Geoff Thorpe]
4938 *) Move common extension printing code to new function
4939 X509V3_print_extensions(). Reorganise OCSP print routines and
4940 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4943 *) New function X509_signature_print() to remove duplication in some
4947 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4948 set (this was treated exactly the same as SET OF previously). This
4949 is used to reorder the STACK representing the structure to match the
4950 encoding. This will be used to get round a problem where a PKCS7
4951 structure which was signed could not be verified because the STACK
4952 order did not reflect the encoded order.
4955 *) Reimplement the OCSP ASN1 module using the new code.
4958 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4959 for its ASN1 operations. The old style function pointers still exist
4960 for now but they will eventually go away.
4963 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4964 completely replaces the old ASN1 functionality with a table driven
4965 encoder and decoder which interprets an ASN1_ITEM structure describing
4966 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4967 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4968 has also been converted to the new form.
4971 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4972 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4973 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4974 for negative moduli.
4977 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4978 of not touching the result's sign bit.
4981 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4985 *) Changed the LHASH code to use prototypes for callbacks, and created
4986 macros to declare and implement thin (optionally static) functions
4987 that provide type-safety and avoid function pointer casting for the
4988 type-specific callbacks.
4991 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4993 [Veers Staats <staatsvr@asc.hpc.mil>,
4994 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4996 *) Reformat the FAQ so the different questions and answers can be divided
4997 in sections depending on the subject.
5000 *) Have the zlib compression code load ZLIB.DLL dynamically under
5004 *) New function BN_mod_sqrt for computing square roots modulo a prime
5005 (using the probabilistic Tonelli-Shanks algorithm unless
5006 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5007 be handled deterministically).
5008 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5010 *) Make BN_mod_inverse faster by explicitly handling small quotients
5011 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5012 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5015 *) New function BN_kronecker.
5018 *) Fix BN_gcd so that it works on negative inputs; the result is
5019 positive unless both parameters are zero.
5020 Previously something reasonably close to an infinite loop was
5021 possible because numbers could be growing instead of shrinking
5022 in the implementation of Euclid's algorithm.
5025 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5026 sign of the number in question.
5028 Fix BN_is_word(a,w) to work correctly for w == 0.
5030 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5031 because its test if the absolute value of 'a' equals 'w'.
5032 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5033 it exists mostly for use in the implementations of BN_is_zero(),
5034 BN_is_one(), and BN_is_word().
5037 *) New function BN_swap.
5040 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5041 the exponentiation functions are more likely to produce reasonable
5042 results on negative inputs.
5045 *) Change BN_mod_mul so that the result is always non-negative.
5046 Previously, it could be negative if one of the factors was negative;
5047 I don't think anyone really wanted that behaviour.
5050 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5051 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5052 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5053 and add new functions:
5062 BN_mod_lshift1_quick
5066 These functions always generate non-negative results.
5068 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5069 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5071 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5072 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5073 be reduced modulo m.
5074 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5077 The following entry accidentily appeared in the CHANGES file
5078 distributed with OpenSSL 0.9.7. The modifications described in
5079 it do *not* apply to OpenSSL 0.9.7.
5081 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5082 was actually never needed) and in BN_mul(). The removal in BN_mul()
5083 required a small change in bn_mul_part_recursive() and the addition
5084 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5085 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5086 bn_sub_words() and bn_add_words() except they take arrays with
5091 *) In 'openssl passwd', verify passwords read from the terminal
5092 unless the '-salt' option is used (which usually means that
5093 verification would just waste user's time since the resulting
5094 hash is going to be compared with some given password hash)
5095 or the new '-noverify' option is used.
5097 This is an incompatible change, but it does not affect
5098 non-interactive use of 'openssl passwd' (passwords on the command
5099 line, '-stdin' option, '-in ...' option) and thus should not
5103 *) Remove all references to RSAref, since there's no more need for it.
5106 *) Make DSO load along a path given through an environment variable
5107 (SHLIB_PATH) with shl_load().
5110 *) Constify the ENGINE code as a result of BIGNUM constification.
5111 Also constify the RSA code and most things related to it. In a
5112 few places, most notable in the depth of the ASN.1 code, ugly
5113 casts back to non-const were required (to be solved at a later
5117 *) Make it so the openssl application has all engines loaded by default.
5120 *) Constify the BIGNUM routines a little more.
5123 *) Add the following functions:
5125 ENGINE_load_cswift()
5127 ENGINE_load_atalla()
5129 ENGINE_load_builtin_engines()
5131 That way, an application can itself choose if external engines that
5132 are built-in in OpenSSL shall ever be used or not. The benefit is
5133 that applications won't have to be linked with libdl or other dso
5134 libraries unless it's really needed.
5136 Changed 'openssl engine' to load all engines on demand.
5137 Changed the engine header files to avoid the duplication of some
5138 declarations (they differed!).
5141 *) 'openssl engine' can now list capabilities.
5144 *) Better error reporting in 'openssl engine'.
5147 *) Never call load_dh_param(NULL) in s_server.
5150 *) Add engine application. It can currently list engines by name and
5151 identity, and test if they are actually available.
5154 *) Improve RPM specification file by forcing symbolic linking and making
5155 sure the installed documentation is also owned by root.root.
5156 [Damien Miller <djm@mindrot.org>]
5158 *) Give the OpenSSL applications more possibilities to make use of
5159 keys (public as well as private) handled by engines.
5162 *) Add OCSP code that comes from CertCo.
5165 *) Add VMS support for the Rijndael code.
5168 *) Added untested support for Nuron crypto accelerator.
5171 *) Add support for external cryptographic devices. This code was
5172 previously distributed separately as the "engine" branch.
5173 [Geoff Thorpe, Richard Levitte]
5175 *) Rework the filename-translation in the DSO code. It is now possible to
5176 have far greater control over how a "name" is turned into a filename
5177 depending on the operating environment and any oddities about the
5178 different shared library filenames on each system.
5181 *) Support threads on FreeBSD-elf in Configure.
5184 *) Fix for SHA1 assembly problem with MASM: it produces
5185 warnings about corrupt line number information when assembling
5186 with debugging information. This is caused by the overlapping
5188 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5191 NCONF_get_number() has no error checking at all. As a replacement,
5192 NCONF_get_number_e() is defined (_e for "error checking") and is
5193 promoted strongly. The old NCONF_get_number is kept around for
5194 binary backward compatibility.
5195 Make it possible for methods to load from something other than a BIO,
5196 by providing a function pointer that is given a name instead of a BIO.
5197 For example, this could be used to load configuration data from an
5201 *) Fix for non blocking accept BIOs. Added new I/O special reason
5202 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5203 with non blocking I/O was not possible because no retry code was
5204 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5208 *) Added the beginnings of Rijndael support.
5211 *) Fix for bug in DirectoryString mask setting. Add support for
5212 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5213 to allow certificate printing to more controllable, additional
5214 'certopt' option to 'x509' to allow new printing options to be
5218 *) Clean old EAY MD5 hack from e_os.h.
5221 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5223 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5224 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5225 [Joe Orton, Steve Henson]
5227 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5229 *) Fix additional bug revealed by the NISCC test suite:
5231 Stop bug triggering large recursion when presented with
5232 certain ASN.1 tags (CVE-2003-0851)
5235 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5237 *) Fix various bugs revealed by running the NISCC test suite:
5239 Stop out of bounds reads in the ASN1 code when presented with
5240 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5242 If verify callback ignores invalid public key errors don't try to check
5243 certificate signature with the NULL public key.
5247 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5248 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5252 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5253 extra data after the compression methods not only for TLS 1.0
5254 but also for SSL 3.0 (as required by the specification).
5255 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5257 *) Change X509_certificate_type() to mark the key as exported/exportable
5258 when it's 512 *bits* long, not 512 bytes.
5261 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5263 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5264 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5265 a protocol version number mismatch like a decryption error
5266 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5269 *) Turn on RSA blinding by default in the default implementation
5270 to avoid a timing attack. Applications that don't want it can call
5271 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5272 They would be ill-advised to do so in most cases.
5273 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5275 *) Change RSA blinding code so that it works when the PRNG is not
5276 seeded (in this case, the secret RSA exponent is abused as
5277 an unpredictable seed -- if it is not unpredictable, there
5278 is no point in blinding anyway). Make RSA blinding thread-safe
5279 by remembering the creator's thread ID in rsa->blinding and
5280 having all other threads use local one-time blinding factors
5281 (this requires more computation than sharing rsa->blinding, but
5282 avoids excessive locking; and if an RSA object is not shared
5283 between threads, blinding will still be very fast).
5286 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5288 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5289 via timing by performing a MAC computation even if incorrrect
5290 block cipher padding has been found. This is a countermeasure
5291 against active attacks where the attacker has to distinguish
5292 between bad padding and a MAC verification error. (CVE-2003-0078)
5294 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5295 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5296 Martin Vuagnoux (EPFL, Ilion)]
5298 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5300 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5301 memory from it's contents. This is done with a counter that will
5302 place alternating values in each byte. This can be used to solve
5303 two issues: 1) the removal of calls to memset() by highly optimizing
5304 compilers, and 2) cleansing with other values than 0, since those can
5305 be read through on certain media, for example a swap space on disk.
5308 *) Bugfix: client side session caching did not work with external caching,
5309 because the session->cipher setting was not restored when reloading
5310 from the external cache. This problem was masked, when
5311 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5312 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5315 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5316 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5317 [Zeev Lieber <zeev-l@yahoo.com>]
5319 *) Undo an undocumented change introduced in 0.9.6e which caused
5320 repeated calls to OpenSSL_add_all_ciphers() and
5321 OpenSSL_add_all_digests() to be ignored, even after calling
5325 *) Change the default configuration reader to deal with last line not
5326 being properly terminated.
5329 *) Change X509_NAME_cmp() so it applies the special rules on handling
5330 DN values that are of type PrintableString, as well as RDNs of type
5331 emailAddress where the value has the type ia5String.
5332 [stefank@valicert.com via Richard Levitte]
5334 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5335 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5336 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5337 the bitwise-OR of the two for use by the majority of applications
5338 wanting this behaviour, and update the docs. The documented
5339 behaviour and actual behaviour were inconsistent and had been
5340 changing anyway, so this is more a bug-fix than a behavioural
5342 [Geoff Thorpe, diagnosed by Nadav Har'El]
5344 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5345 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5348 *) Fix initialization code race conditions in
5349 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5350 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5351 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5352 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5353 ssl2_get_cipher_by_char(),
5354 ssl3_get_cipher_by_char().
5355 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5357 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5358 the cached sessions are flushed, as the remove_cb() might use ex_data
5359 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5360 (see [openssl.org #212]).
5361 [Geoff Thorpe, Lutz Jaenicke]
5363 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5364 length, instead of the encoding length to d2i_ASN1_OBJECT.
5367 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5369 *) [In 0.9.6g-engine release:]
5370 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5371 [Lynn Gazis <lgazis@rainbow.com>]
5373 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5375 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5376 and get fix the header length calculation.
5377 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5378 Alon Kantor <alonk@checkpoint.com> (and others),
5381 *) Use proper error handling instead of 'assertions' in buffer
5382 overflow checks added in 0.9.6e. This prevents DoS (the
5383 assertions could call abort()).
5384 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5386 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5388 *) Add various sanity checks to asn1_get_length() to reject
5389 the ASN1 length bytes if they exceed sizeof(long), will appear
5390 negative or the content length exceeds the length of the
5392 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5394 *) Fix cipher selection routines: ciphers without encryption had no flags
5395 for the cipher strength set and where therefore not handled correctly
5396 by the selection routines (PR #130).
5399 *) Fix EVP_dsa_sha macro.
5403 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5404 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5405 that was added in OpenSSL 0.9.6d.
5407 As the countermeasure turned out to be incompatible with some
5408 broken SSL implementations, the new option is part of SSL_OP_ALL.
5409 SSL_OP_ALL is usually employed when compatibility with weird SSL
5410 implementations is desired (e.g. '-bugs' option to 's_client' and
5411 's_server'), so the new option is automatically set in many
5415 *) Changes in security patch:
5417 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5418 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5419 Air Force Materiel Command, USAF, under agreement number
5422 *) Add various sanity checks to asn1_get_length() to reject
5423 the ASN1 length bytes if they exceed sizeof(long), will appear
5424 negative or the content length exceeds the length of the
5425 supplied buffer. (CVE-2002-0659)
5426 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5428 *) Assertions for various potential buffer overflows, not known to
5430 [Ben Laurie (CHATS)]
5432 *) Various temporary buffers to hold ASCII versions of integers were
5433 too small for 64 bit platforms. (CVE-2002-0655)
5434 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5436 *) Remote buffer overflow in SSL3 protocol - an attacker could
5437 supply an oversized session ID to a client. (CVE-2002-0656)
5438 [Ben Laurie (CHATS)]
5440 *) Remote buffer overflow in SSL2 protocol - an attacker could
5441 supply an oversized client master key. (CVE-2002-0656)
5442 [Ben Laurie (CHATS)]
5444 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5446 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5447 encoded as NULL) with id-dsa-with-sha1.
5448 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5450 *) Check various X509_...() return values in apps/req.c.
5451 [Nils Larsch <nla@trustcenter.de>]
5453 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5454 an end-of-file condition would erronously be flagged, when the CRLF
5455 was just at the end of a processed block. The bug was discovered when
5456 processing data through a buffering memory BIO handing the data to a
5457 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5458 <ptsekov@syntrex.com> and Nedelcho Stanev.
5461 *) Implement a countermeasure against a vulnerability recently found
5462 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5463 before application data chunks to avoid the use of known IVs
5464 with data potentially chosen by the attacker.
5467 *) Fix length checks in ssl3_get_client_hello().
5470 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5471 to prevent ssl3_read_internal() from incorrectly assuming that
5472 ssl3_read_bytes() found application data while handshake
5473 processing was enabled when in fact s->s3->in_read_app_data was
5474 merely automatically cleared during the initial handshake.
5475 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5477 *) Fix object definitions for Private and Enterprise: they were not
5478 recognized in their shortname (=lowercase) representation. Extend
5479 obj_dat.pl to issue an error when using undefined keywords instead
5480 of silently ignoring the problem (Svenning Sorensen
5481 <sss@sss.dnsalias.net>).
5484 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5485 generators, i.e. generators other than 2 and 5. (Previously, the
5486 code did not properly initialise the 'add' and 'rem' values to
5487 BN_generate_prime().)
5489 In the new general case, we do not insist that 'generator' is
5490 actually a primitive root: This requirement is rather pointless;
5491 a generator of the order-q subgroup is just as good, if not
5495 *) Map new X509 verification errors to alerts. Discovered and submitted by
5496 Tom Wu <tom@arcot.com>.
5499 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5500 returning non-zero before the data has been completely received
5501 when using non-blocking I/O.
5502 [Bodo Moeller; problem pointed out by John Hughes]
5504 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5505 [Ben Laurie, Lutz Jaenicke]
5507 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5508 Yoram Zahavi <YoramZ@gilian.com>).
5511 *) Add information about CygWin 1.3 and on, and preserve proper
5512 configuration for the versions before that.
5513 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5515 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5516 check whether we deal with a copy of a session and do not delete from
5517 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5518 <izhar@checkpoint.com>.
5521 *) Do not store session data into the internal session cache, if it
5522 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5523 flag is set). Proposed by Aslam <aslam@funk.com>.
5526 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5530 *) [In 0.9.6d-engine release:]
5531 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5532 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5534 *) Add the configuration target linux-s390x.
5535 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5537 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5538 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5539 variable as an indication that a ClientHello message has been
5540 received. As the flag value will be lost between multiple
5541 invocations of ssl3_accept when using non-blocking I/O, the
5542 function may not be aware that a handshake has actually taken
5543 place, thus preventing a new session from being added to the
5546 To avoid this problem, we now set s->new_session to 2 instead of
5547 using a local variable.
5548 [Lutz Jaenicke, Bodo Moeller]
5550 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5551 if the SSL_R_LENGTH_MISMATCH error is detected.
5552 [Geoff Thorpe, Bodo Moeller]
5554 *) New 'shared_ldflag' column in Configure platform table.
5557 *) Fix EVP_CIPHER_mode macro.
5558 ["Dan S. Camper" <dan@bti.net>]
5560 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5561 type, we must throw them away by setting rr->length to 0.
5562 [D P Chang <dpc@qualys.com>]
5564 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5566 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5567 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5568 worked incorrectly for those cases where range = 10..._2 and
5569 3*range is two bits longer than range.)
5572 *) Only add signing time to PKCS7 structures if it is not already
5576 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5577 OBJ_ld_ce should be OBJ_id_ce.
5578 Also some ip-pda OIDs in crypto/objects/objects.txt were
5579 incorrect (cf. RFC 3039).
5580 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5582 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5583 returns early because it has nothing to do.
5584 [Andy Schneider <andy.schneider@bjss.co.uk>]
5586 *) [In 0.9.6c-engine release:]
5587 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5588 [Andy Schneider <andy.schneider@bjss.co.uk>]
5590 *) [In 0.9.6c-engine release:]
5591 Add support for Cryptographic Appliance's keyserver technology.
5592 (Use engine 'keyclient')
5593 [Cryptographic Appliances and Geoff Thorpe]
5595 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5596 is called via tools/c89.sh because arguments have to be
5597 rearranged (all '-L' options must appear before the first object
5599 [Richard Shapiro <rshapiro@abinitio.com>]
5601 *) [In 0.9.6c-engine release:]
5602 Add support for Broadcom crypto accelerator cards, backported
5604 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5606 *) [In 0.9.6c-engine release:]
5607 Add support for SureWare crypto accelerator cards from
5608 Baltimore Technologies. (Use engine 'sureware')
5609 [Baltimore Technologies and Mark Cox]
5611 *) [In 0.9.6c-engine release:]
5612 Add support for crypto accelerator cards from Accelerated
5613 Encryption Processing, www.aep.ie. (Use engine 'aep')
5614 [AEP Inc. and Mark Cox]
5616 *) Add a configuration entry for gcc on UnixWare.
5617 [Gary Benson <gbenson@redhat.com>]
5619 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5620 messages are stored in a single piece (fixed-length part and
5621 variable-length part combined) and fix various bugs found on the way.
5624 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5625 instead. BIO_gethostbyname() does not know what timeouts are
5626 appropriate, so entries would stay in cache even when they have
5628 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5630 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5631 faced with a pathologically small ClientHello fragment that does
5632 not contain client_version: Instead of aborting with an error,
5633 simply choose the highest available protocol version (i.e.,
5634 TLS 1.0 unless it is disabled). In practice, ClientHello
5635 messages are never sent like this, but this change gives us
5636 strictly correct behaviour at least for TLS.
5639 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5640 never resets s->method to s->ctx->method when called from within
5641 one of the SSL handshake functions.
5642 [Bodo Moeller; problem pointed out by Niko Baric]
5644 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5645 (sent using the client's version number) if client_version is
5646 smaller than the protocol version in use. Also change
5647 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5648 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5649 the client will at least see that alert.
5652 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5656 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5657 client receives HelloRequest while in a handshake.
5658 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5660 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5661 should end in 'break', not 'goto end' which circuments various
5662 cleanups done in state SSL_ST_OK. But session related stuff
5663 must be disabled for SSL_ST_OK in the case that we just sent a
5666 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5667 before just sending a HelloRequest.
5668 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5670 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5671 reveal whether illegal block cipher padding was found or a MAC
5672 verification error occured. (Neither SSLerr() codes nor alerts
5673 are directly visible to potential attackers, but the information
5674 may leak via logfiles.)
5676 Similar changes are not required for the SSL 2.0 implementation
5677 because the number of padding bytes is sent in clear for SSL 2.0,
5678 and the extra bytes are just ignored. However ssl/s2_pkt.c
5679 failed to verify that the purported number of padding bytes is in
5683 *) Add OpenUNIX-8 support including shared libraries
5684 (Boyd Lynn Gerber <gerberb@zenez.com>).
5687 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5688 'wristwatch attack' using huge encoding parameters (cf.
5689 James H. Manger's CRYPTO 2001 paper). Note that the
5690 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5691 encoding parameters and hence was not vulnerable.
5694 *) BN_sqr() bug fix.
5695 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5697 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5698 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5699 followed by modular reduction.
5700 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5702 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5703 equivalent based on BN_pseudo_rand() instead of BN_rand().
5706 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5707 This function was broken, as the check for a new client hello message
5708 to handle SGC did not allow these large messages.
5709 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5712 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5715 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5716 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5719 *) Rework the configuration and shared library support for Tru64 Unix.
5720 The configuration part makes use of modern compiler features and
5721 still retains old compiler behavior for those that run older versions
5722 of the OS. The shared library support part includes a variant that
5723 uses the RPATH feature, and is available through the special
5724 configuration target "alpha-cc-rpath", which will never be selected
5726 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5728 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5729 with the same message size as in ssl3_get_certificate_request().
5730 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5731 messages might inadvertently be reject as too long.
5732 [Petr Lampa <lampa@fee.vutbr.cz>]
5734 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5737 *) Modified SSL library such that the verify_callback that has been set
5738 specificly for an SSL object with SSL_set_verify() is actually being
5739 used. Before the change, a verify_callback set with this function was
5740 ignored and the verify_callback() set in the SSL_CTX at the time of
5741 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5742 to allow the necessary settings.
5745 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5746 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5747 done automatically (in contradiction to the requirements of the C
5748 standard). This made problems when used from OpenSSH.
5751 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5752 dh->length and always used
5754 BN_rand_range(priv_key, dh->p).
5756 BN_rand_range() is not necessary for Diffie-Hellman, and this
5757 specific range makes Diffie-Hellman unnecessarily inefficient if
5758 dh->length (recommended exponent length) is much smaller than the
5759 length of dh->p. We could use BN_rand_range() if the order of
5760 the subgroup was stored in the DH structure, but we only have
5765 BN_rand(priv_key, l, ...)
5767 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5773 RSA_eay_public_encrypt
5774 RSA_eay_private_decrypt
5775 RSA_eay_private_encrypt (signing)
5776 RSA_eay_public_decrypt (signature verification)
5778 (default implementations for RSA_public_encrypt,
5779 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5780 always reject numbers >= n.
5783 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5784 to synchronize access to 'locking_thread'. This is necessary on
5785 systems where access to 'locking_thread' (an 'unsigned long'
5786 variable) is not atomic.
5789 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5790 *before* setting the 'crypto_lock_rand' flag. The previous code had
5791 a race condition if 0 is a valid thread ID.
5792 [Travis Vitek <vitek@roguewave.com>]
5794 *) Add support for shared libraries under Irix.
5795 [Albert Chin-A-Young <china@thewrittenword.com>]
5797 *) Add configuration option to build on Linux on both big-endian and
5799 [Ralf Baechle <ralf@uni-koblenz.de>]
5801 *) Add the possibility to create shared libraries on HP-UX.
5804 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5806 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5807 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5808 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5809 PRNG state recovery was possible based on the output of
5810 one PRNG request appropriately sized to gain knowledge on
5811 'md' followed by enough consecutive 1-byte PRNG requests
5812 to traverse all of 'state'.
5814 1. When updating 'md_local' (the current thread's copy of 'md')
5815 during PRNG output generation, hash all of the previous
5816 'md_local' value, not just the half used for PRNG output.
5818 2. Make the number of bytes from 'state' included into the hash
5819 independent from the number of PRNG bytes requested.
5821 The first measure alone would be sufficient to avoid
5822 Markku-Juhani's attack. (Actually it had never occurred
5823 to me that the half of 'md_local' used for chaining was the
5824 half from which PRNG output bytes were taken -- I had always
5825 assumed that the secret half would be used.) The second
5826 measure makes sure that additional data from 'state' is never
5827 mixed into 'md_local' in small portions; this heuristically
5828 further strengthens the PRNG.
5831 *) Fix crypto/bn/asm/mips3.s.
5834 *) When only the key is given to "enc", the IV is undefined. Print out
5835 an error message in this case.
5838 *) Handle special case when X509_NAME is empty in X509 printing routines.
5841 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5842 positive and less than q.
5845 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5846 used: it isn't thread safe and the add_lock_callback should handle
5848 [Paul Rose <Paul.Rose@bridge.com>]
5850 *) Verify that incoming data obeys the block size in
5851 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5855 [Ulf Möller, Bodo Möller]
5857 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5858 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5859 when fixing the server behaviour for backwards-compatible 'client
5860 hello' messages. (Note that the attack is impractical against
5861 SSL 3.0 and TLS 1.0 anyway because length and version checking
5862 means that the probability of guessing a valid ciphertext is
5863 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5866 Before 0.9.5, the countermeasure (hide the error by generating a
5867 random 'decryption result') did not work properly because
5868 ERR_clear_error() was missing, meaning that SSL_get_error() would
5869 detect the supposedly ignored error.
5871 Both problems are now fixed.
5874 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5875 (previously it was 1024).
5878 *) Fix for compatibility mode trust settings: ignore trust settings
5879 unless some valid trust or reject settings are present.
5882 *) Fix for blowfish EVP: its a variable length cipher.
5885 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5886 parameters in DSA public key structures and return an error in the
5887 DSA routines if parameters are absent.
5890 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5891 in the current directory if neither $RANDFILE nor $HOME was set.
5892 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5893 caused some confusion to Windows users who haven't defined $HOME.
5894 Thus RAND_file_name() is changed again: e_os.h can define a
5895 DEFAULT_HOME, which will be used if $HOME is not set.
5896 For Windows, we use "C:"; on other platforms, we still require
5897 environment variables.
5899 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5900 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5901 having multiple threads call RAND_poll() concurrently.
5904 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5905 combination of a flag and a thread ID variable.
5906 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5907 flag), *other* threads can enter ssleay_add_bytes without obeying
5908 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5909 that they do not hold after the first thread unsets add_do_not_lock).
5912 *) Change bctest again: '-x' expressions are not available in all
5916 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5918 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5919 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5921 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5922 the default extension for executables, if any. Also, make the perl
5923 scripts that use symlink() to test if it really exists and use "cp"
5924 if it doesn't. All this made OpenSSL compilable and installable in
5928 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5929 If SEQUENCE is length is indefinite just set c->slen to the total
5930 amount of data available.
5931 [Steve Henson, reported by shige@FreeBSD.org]
5932 [This change does not apply to 0.9.7.]
5934 *) Change bctest to avoid here-documents inside command substitution
5935 (workaround for FreeBSD /bin/sh bug).
5936 For compatibility with Ultrix, avoid shell functions (introduced
5937 in the bctest version that searches along $PATH).
5940 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5941 with des_encrypt() defined on some operating systems, like Solaris
5945 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5946 On the Importance of Eliminating Errors in Cryptographic
5947 Computations, J. Cryptology 14 (2001) 2, 101-119,
5948 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5951 *) MIPS assembler BIGNUM division bug fix.
5954 *) Disabled incorrect Alpha assembler code.
5957 *) Fix PKCS#7 decode routines so they correctly update the length
5958 after reading an EOC for the EXPLICIT tag.
5960 [This change does not apply to 0.9.7.]
5962 *) Fix bug in PKCS#12 key generation routines. This was triggered
5963 if a 3DES key was generated with a 0 initial byte. Include
5964 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5965 (but broken) behaviour.
5968 *) Enhance bctest to search for a working bc along $PATH and print
5970 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5972 *) Fix memory leaks in err.c: free err_data string if necessary;
5973 don't write to the wrong index in ERR_set_error_data.
5976 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5980 *) Replace rdtsc with _emit statements for VC++ version 5.
5981 [Jeremy Cooper <jeremy@baymoo.org>]
5983 *) Make it possible to reuse SSLv2 sessions.
5986 *) In copy_email() check for >= 0 as a return value for
5987 X509_NAME_get_index_by_NID() since 0 is a valid index.
5988 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5990 *) Avoid coredump with unsupported or invalid public keys by checking if
5991 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5992 PKCS7_verify() fails with non detached data.
5995 *) Don't use getenv in library functions when run as setuid/setgid.
5996 New function OPENSSL_issetugid().
5999 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6000 due to incorrect handling of multi-threading:
6002 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6004 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6006 3. Count how many times MemCheck_off() has been called so that
6007 nested use can be treated correctly. This also avoids
6008 inband-signalling in the previous code (which relied on the
6009 assumption that thread ID 0 is impossible).
6012 *) Add "-rand" option also to s_client and s_server.
6015 *) Fix CPU detection on Irix 6.x.
6016 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6017 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6019 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6022 [This change does not apply to 0.9.7.]
6024 *) Use the cached encoding of an X509_NAME structure rather than
6025 copying it. This is apparently the reason for the libsafe "errors"
6026 but the code is actually correct.
6029 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6030 Bleichenbacher's DSA attack.
6031 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6032 to be set and top=0 forces the highest bit to be set; top=-1 is new
6033 and leaves the highest bit random.
6034 [Ulf Moeller, Bodo Moeller]
6036 *) In the NCONF_...-based implementations for CONF_... queries
6037 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6038 a temporary CONF structure with the data component set to NULL
6039 (which gives segmentation faults in lh_retrieve).
6040 Instead, use NULL for the CONF pointer in CONF_get_string and
6041 CONF_get_number (which may use environment variables) and directly
6042 return NULL from CONF_get_section.
6045 *) Fix potential buffer overrun for EBCDIC.
6048 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6049 keyUsage if basicConstraints absent for a CA.
6052 *) Make SMIME_write_PKCS7() write mail header values with a format that
6053 is more generally accepted (no spaces before the semicolon), since
6054 some programs can't parse those values properly otherwise. Also make
6055 sure BIO's that break lines after each write do not create invalid
6059 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6060 macros previously used would not encode an empty SEQUENCE OF
6061 and break the signature.
6063 [This change does not apply to 0.9.7.]
6065 *) Zero the premaster secret after deriving the master secret in
6069 *) Add some EVP_add_digest_alias registrations (as found in
6070 OpenSSL_add_all_digests()) to SSL_library_init()
6071 aka OpenSSL_add_ssl_algorithms(). This provides improved
6072 compatibility with peers using X.509 certificates
6073 with unconventional AlgorithmIdentifier OIDs.
6076 *) Fix for Irix with NO_ASM.
6077 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6079 *) ./config script fixes.
6080 [Ulf Moeller, Richard Levitte]
6082 *) Fix 'openssl passwd -1'.
6085 *) Change PKCS12_key_gen_asc() so it can cope with non null
6086 terminated strings whose length is passed in the passlen
6087 parameter, for example from PEM callbacks. This was done
6088 by adding an extra length parameter to asc2uni().
6089 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6091 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6092 call failed, free the DSA structure.
6095 *) Fix to uni2asc() to cope with zero length Unicode strings.
6096 These are present in some PKCS#12 files.
6099 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6100 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6101 when writing a 32767 byte record.
6102 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6104 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6105 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6107 (RSA objects have a reference count access to which is protected
6108 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6109 so they are meant to be shared between threads.)
6110 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6111 "Reddie, Steven" <Steven.Reddie@ca.com>]
6113 *) Fix a deadlock in CRYPTO_mem_leaks().
6116 *) Use better test patterns in bntest.
6119 *) rand_win.c fix for Borland C.
6122 *) BN_rshift bugfix for n == 0.
6125 *) Add a 'bctest' script that checks for some known 'bc' bugs
6126 so that 'make test' does not abort just because 'bc' is broken.
6129 *) Store verify_result within SSL_SESSION also for client side to
6130 avoid potential security hole. (Re-used sessions on the client side
6131 always resulted in verify_result==X509_V_OK, not using the original
6132 result of the server certificate verification.)
6135 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6136 SSL3_RT_APPLICATION_DATA, return 0.
6137 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6141 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6142 releases, have been re-implemented by renaming the previous
6143 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6144 and ssl3_read_internal, respectively, and adding 'peek' parameters
6145 to them. The new ssl[23]_{read,peek} functions are calls to
6146 ssl[23]_read_internal with the 'peek' flag set appropriately.
6147 A 'peek' parameter has also been added to ssl3_read_bytes, which
6148 does the actual work for ssl3_read_internal.
6151 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6152 the method-specific "init()" handler. Also clean up ex_data after
6153 calling the method-specific "finish()" handler. Previously, this was
6154 happening the other way round.
6157 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6158 The previous value, 12, was not always sufficient for BN_mod_exp().
6161 *) Make sure that shared libraries get the internal name engine with
6162 the full version number and not just 0. This should mark the
6163 shared libraries as not backward compatible. Of course, this should
6164 be changed again when we can guarantee backward binary compatibility.
6167 *) Fix typo in get_cert_by_subject() in by_dir.c
6168 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6170 *) Rework the system to generate shared libraries:
6172 - Make note of the expected extension for the shared libraries and
6173 if there is a need for symbolic links from for example libcrypto.so.0
6174 to libcrypto.so.0.9.7. There is extended info in Configure for
6177 - Make as few rebuilds of the shared libraries as possible.
6179 - Still avoid linking the OpenSSL programs with the shared libraries.
6181 - When installing, install the shared libraries separately from the
6185 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6187 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6188 and not in SSL_clear because the latter is also used by the
6189 accept/connect functions; previously, the settings made by
6190 SSL_set_read_ahead would be lost during the handshake.
6191 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6193 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6194 Previously, it would create entries for disableed algorithms no
6198 *) Added several new manual pages for SSL_* function.
6201 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6203 *) In ssl23_get_client_hello, generate an error message when faced
6204 with an initial SSL 3.0/TLS record that is too small to contain the
6205 first two bytes of the ClientHello message, i.e. client_version.
6206 (Note that this is a pathologic case that probably has never happened
6207 in real life.) The previous approach was to use the version number
6208 from the record header as a substitute; but our protocol choice
6209 should not depend on that one because it is not authenticated
6210 by the Finished messages.
6213 *) More robust randomness gathering functions for Windows.
6214 [Jeffrey Altman <jaltman@columbia.edu>]
6216 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6217 not set then we don't setup the error code for issuer check errors
6218 to avoid possibly overwriting other errors which the callback does
6219 handle. If an application does set the flag then we assume it knows
6220 what it is doing and can handle the new informational codes
6224 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6225 a general "ANY" type, as such it should be able to decode anything
6226 including tagged types. However it didn't check the class so it would
6227 wrongly interpret tagged types in the same way as their universal
6228 counterpart and unknown types were just rejected. Changed so that the
6229 tagged and unknown types are handled in the same way as a SEQUENCE:
6230 that is the encoding is stored intact. There is also a new type
6231 "V_ASN1_OTHER" which is used when the class is not universal, in this
6232 case we have no idea what the actual type is so we just lump them all
6236 *) On VMS, stdout may very well lead to a file that is written to
6237 in a record-oriented fashion. That means that every write() will
6238 write a separate record, which will be read separately by the
6239 programs trying to read from it. This can be very confusing.
6241 The solution is to put a BIO filter in the way that will buffer
6242 text until a linefeed is reached, and then write everything a
6243 line at a time, so every record written will be an actual line,
6244 not chunks of lines and not (usually doesn't happen, but I've
6245 seen it once) several lines in one record. BIO_f_linebuffer() is
6248 Currently, it's a VMS-only method, because that's where it has
6249 been tested well enough.
6252 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6253 it can return incorrect results.
6254 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6255 but it was in 0.9.6-beta[12].)
6258 *) Disable the check for content being present when verifying detached
6259 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6260 include zero length content when signing messages.
6263 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6264 BIO_ctrl (for BIO pairs).
6267 *) Add DSO method for VMS.
6270 *) Bug fix: Montgomery multiplication could produce results with the
6274 *) Add RPM specification openssl.spec and modify it to build three
6275 packages. The default package contains applications, application
6276 documentation and run-time libraries. The devel package contains
6277 include files, static libraries and function documentation. The
6278 doc package contains the contents of the doc directory. The original
6279 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6282 *) Add a large number of documentation files for many SSL routines.
6283 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6285 *) Add a configuration entry for Sony News 4.
6286 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6288 *) Don't set the two most significant bits to one when generating a
6289 random number < q in the DSA library.
6292 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6293 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6294 the underlying transport is blocking) if a handshake took place.
6295 (The default behaviour is needed by applications such as s_client
6296 and s_server that use select() to determine when to use SSL_read;
6297 but for applications that know in advance when to expect data, it
6298 just makes things more complicated.)
6301 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6305 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6306 work better on such systems.
6307 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6309 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6310 Update PKCS12_parse() so it copies the friendlyName and the
6311 keyid to the certificates aux info.
6314 *) Fix bug in PKCS7_verify() which caused an infinite loop
6315 if there was more than one signature.
6316 [Sven Uszpelkat <su@celocom.de>]
6318 *) Major change in util/mkdef.pl to include extra information
6319 about each symbol, as well as presentig variables as well
6320 as functions. This change means that there's n more need
6321 to rebuild the .num files when some algorithms are excluded.
6324 *) Allow the verify time to be set by an application,
6325 rather than always using the current time.
6328 *) Phase 2 verify code reorganisation. The certificate
6329 verify code now looks up an issuer certificate by a
6330 number of criteria: subject name, authority key id
6331 and key usage. It also verifies self signed certificates
6332 by the same criteria. The main comparison function is
6333 X509_check_issued() which performs these checks.
6335 Lot of changes were necessary in order to support this
6336 without completely rewriting the lookup code.
6338 Authority and subject key identifier are now cached.
6340 The LHASH 'certs' is X509_STORE has now been replaced
6341 by a STACK_OF(X509_OBJECT). This is mainly because an
6342 LHASH can't store or retrieve multiple objects with
6343 the same hash value.
6345 As a result various functions (which were all internal
6346 use only) have changed to handle the new X509_STORE
6347 structure. This will break anything that messed round
6348 with X509_STORE internally.
6350 The functions X509_STORE_add_cert() now checks for an
6351 exact match, rather than just subject name.
6353 The X509_STORE API doesn't directly support the retrieval
6354 of multiple certificates matching a given criteria, however
6355 this can be worked round by performing a lookup first
6356 (which will fill the cache with candidate certificates)
6357 and then examining the cache for matches. This is probably
6358 the best we can do without throwing out X509_LOOKUP
6359 entirely (maybe later...).
6361 The X509_VERIFY_CTX structure has been enhanced considerably.
6363 All certificate lookup operations now go via a get_issuer()
6364 callback. Although this currently uses an X509_STORE it
6365 can be replaced by custom lookups. This is a simple way
6366 to bypass the X509_STORE hackery necessary to make this
6367 work and makes it possible to use more efficient techniques
6368 in future. A very simple version which uses a simple
6369 STACK for its trusted certificate store is also provided
6370 using X509_STORE_CTX_trusted_stack().
6372 The verify_cb() and verify() callbacks now have equivalents
6373 in the X509_STORE_CTX structure.
6375 X509_STORE_CTX also has a 'flags' field which can be used
6376 to customise the verify behaviour.
6379 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6380 excludes S/MIME capabilities.
6383 *) When a certificate request is read in keep a copy of the
6384 original encoding of the signed data and use it when outputing
6385 again. Signatures then use the original encoding rather than
6386 a decoded, encoded version which may cause problems if the
6387 request is improperly encoded.
6390 *) For consistency with other BIO_puts implementations, call
6391 buffer_write(b, ...) directly in buffer_puts instead of calling
6394 In BIO_puts, increment b->num_write as in BIO_write.
6395 [Peter.Sylvester@EdelWeb.fr]
6397 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6398 BN_zero, we may not return a BIGNUM with an array consisting of
6402 *) Avoid calling abort() from within the library when problems are
6403 detected, except if preprocessor symbols have been defined
6404 (such as REF_CHECK, BN_DEBUG etc.).
6407 *) New openssl application 'rsautl'. This utility can be
6408 used for low level RSA operations. DER public key
6409 BIO/fp routines also added.
6412 *) New Configure entry and patches for compiling on QNX 4.
6413 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6415 *) A demo state-machine implementation was sponsored by
6416 Nuron (http://www.nuron.com/) and is now available in
6417 demos/state_machine.
6420 *) New options added to the 'dgst' utility for signature
6421 generation and verification.
6424 *) Unrecognized PKCS#7 content types are now handled via a
6425 catch all ASN1_TYPE structure. This allows unsupported
6426 types to be stored as a "blob" and an application can
6427 encode and decode it manually.
6430 *) Fix various signed/unsigned issues to make a_strex.c
6432 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6434 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6435 length if passed a buffer. ASN1_INTEGER_to_BN failed
6436 if passed a NULL BN and its argument was negative.
6437 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6439 *) Modification to PKCS#7 encoding routines to output definite
6440 length encoding. Since currently the whole structures are in
6441 memory there's not real point in using indefinite length
6442 constructed encoding. However if OpenSSL is compiled with
6443 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6446 *) Added BIO_vprintf() and BIO_vsnprintf().
6449 *) Added more prefixes to parse for in the the strings written
6450 through a logging bio, to cover all the levels that are available
6451 through syslog. The prefixes are now:
6453 PANIC, EMERG, EMR => LOG_EMERG
6454 ALERT, ALR => LOG_ALERT
6455 CRIT, CRI => LOG_CRIT
6456 ERROR, ERR => LOG_ERR
6457 WARNING, WARN, WAR => LOG_WARNING
6458 NOTICE, NOTE, NOT => LOG_NOTICE
6459 INFO, INF => LOG_INFO
6460 DEBUG, DBG => LOG_DEBUG
6462 and as before, if none of those prefixes are present at the
6463 beginning of the string, LOG_ERR is chosen.
6465 On Win32, the LOG_* levels are mapped according to this:
6467 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6468 LOG_WARNING => EVENTLOG_WARNING_TYPE
6469 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6473 *) Made it possible to reconfigure with just the configuration
6474 argument "reconf" or "reconfigure". The command line arguments
6475 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6476 and are retrieved from there when reconfiguring.
6480 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6482 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6485 *) The obj_dat.pl script was messing up the sorting of object
6486 names. The reason was that it compared the quoted version
6487 of strings as a result "OCSP" > "OCSP Signing" because
6488 " > SPACE. Changed script to store unquoted versions of
6489 names and add quotes on output. It was also omitting some
6490 names from the lookup table if they were given a default
6491 value (that is if SN is missing it is given the same
6492 value as LN and vice versa), these are now added on the
6493 grounds that if an object has a name we should be able to
6494 look it up. Finally added warning output when duplicate
6495 short or long names are found.
6498 *) Changes needed for Tandem NSK.
6499 [Scott Uroff <scott@xypro.com>]
6501 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6502 RSA_padding_check_SSLv23(), special padding was never detected
6503 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6504 version rollback attacks was not effective.
6506 In s23_clnt.c, don't use special rollback-attack detection padding
6507 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6508 client; similarly, in s23_srvr.c, don't do the rollback check if
6509 SSL 2.0 is the only protocol enabled in the server.
6512 *) Make it possible to get hexdumps of unprintable data with 'openssl
6513 asn1parse'. By implication, the functions ASN1_parse_dump() and
6514 BIO_dump_indent() are added.
6517 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6518 these print out strings and name structures based on various
6519 flags including RFC2253 support and proper handling of
6520 multibyte characters. Added options to the 'x509' utility
6521 to allow the various flags to be set.
6524 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6525 Also change the functions X509_cmp_current_time() and
6526 X509_gmtime_adj() work with an ASN1_TIME structure,
6527 this will enable certificates using GeneralizedTime in validity
6528 dates to be checked.
6531 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6532 negative public key encodings) on by default,
6533 NO_NEG_PUBKEY_BUG can be set to disable it.
6536 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6537 content octets. An i2c_ASN1_OBJECT is unnecessary because
6538 the encoding can be trivially obtained from the structure.
6541 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6542 not read locks (CRYPTO_r_[un]lock).
6545 *) A first attempt at creating official support for shared
6546 libraries through configuration. I've kept it so the
6547 default is static libraries only, and the OpenSSL programs
6548 are always statically linked for now, but there are
6549 preparations for dynamic linking in place.
6550 This has been tested on Linux and Tru64.
6553 *) Randomness polling function for Win9x, as described in:
6554 Peter Gutmann, Software Generation of Practically Strong
6558 *) Fix so PRNG is seeded in req if using an already existing
6562 *) New options to smime application. -inform and -outform
6563 allow alternative formats for the S/MIME message including
6564 PEM and DER. The -content option allows the content to be
6565 specified separately. This should allow things like Netscape
6566 form signing output easier to verify.
6569 *) Fix the ASN1 encoding of tags using the 'long form'.
6572 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6573 STRING types. These convert content octets to and from the
6574 underlying type. The actual tag and length octets are
6575 already assumed to have been read in and checked. These
6576 are needed because all other string types have virtually
6577 identical handling apart from the tag. By having versions
6578 of the ASN1 functions that just operate on content octets
6579 IMPLICIT tagging can be handled properly. It also allows
6580 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6581 and ASN1_INTEGER are identical apart from the tag.
6584 *) Change the handling of OID objects as follows:
6586 - New object identifiers are inserted in objects.txt, following
6587 the syntax given in objects.README.
6588 - objects.pl is used to process obj_mac.num and create a new
6590 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6593 This is currently kind of a hack, and the perl code in objects.pl
6594 isn't very elegant, but it works as I intended. The simplest way
6595 to check that it worked correctly is to look in obj_dat.h and
6596 check the array nid_objs and make sure the objects haven't moved
6597 around (this is important!). Additions are OK, as well as
6598 consistent name changes.
6601 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6604 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6605 The given file adds to whatever has already been seeded into the
6606 random pool through the RANDFILE configuration file option or
6607 environment variable, or the default random state file.
6610 *) mkstack.pl now sorts each macro group into lexical order.
6611 Previously the output order depended on the order the files
6612 appeared in the directory, resulting in needless rewriting
6616 *) Patches to make OpenSSL compile under Win32 again. Mostly
6617 work arounds for the VC++ problem that it treats func() as
6618 func(void). Also stripped out the parts of mkdef.pl that
6619 added extra typesafe functions: these no longer exist.
6622 *) Reorganisation of the stack code. The macros are now all
6623 collected in safestack.h . Each macro is defined in terms of
6624 a "stack macro" of the form SKM_<name>(type, a, b). The
6625 DEBUG_SAFESTACK is now handled in terms of function casts,
6626 this has the advantage of retaining type safety without the
6627 use of additional functions. If DEBUG_SAFESTACK is not defined
6628 then the non typesafe macros are used instead. Also modified the
6629 mkstack.pl script to handle the new form. Needs testing to see
6630 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6631 the default if no major problems. Similar behaviour for ASN1_SET_OF
6632 and PKCS12_STACK_OF.
6635 *) When some versions of IIS use the 'NET' form of private key the
6636 key derivation algorithm is different. Normally MD5(password) is
6637 used as a 128 bit RC4 key. In the modified case
6638 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6639 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6640 as the old Netscape_RSA functions except they have an additional
6641 'sgckey' parameter which uses the modified algorithm. Also added
6642 an -sgckey command line option to the rsa utility. Thanks to
6643 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6644 algorithm to openssl-dev.
6647 *) The evp_local.h macros were using 'c.##kname' which resulted in
6648 invalid expansion on some systems (SCO 5.0.5 for example).
6649 Corrected to 'c.kname'.
6650 [Phillip Porch <root@theporch.com>]
6652 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6653 a STACK of email addresses from a certificate or request, these look
6654 in the subject name and the subject alternative name extensions and
6655 omit any duplicate addresses.
6658 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6659 This makes DSA verification about 2 % faster.
6662 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6663 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6664 plus overhead for 1024 bit moduli).
6665 This makes exponentiations about 0.5 % faster for 1024 bit
6666 exponents (as measured by "openssl speed rsa2048").
6669 *) Rename memory handling macros to avoid conflicts with other
6671 Malloc => OPENSSL_malloc
6672 Malloc_locked => OPENSSL_malloc_locked
6673 Realloc => OPENSSL_realloc
6674 Free => OPENSSL_free
6677 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6678 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6681 *) CygWin32 support.
6682 [John Jarvie <jjarvie@newsguy.com>]
6684 *) The type-safe stack code has been rejigged. It is now only compiled
6685 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6686 by default all type-specific stack functions are "#define"d back to
6687 standard stack functions. This results in more streamlined output
6688 but retains the type-safety checking possibilities of the original
6692 *) The STACK code has been cleaned up, and certain type declarations
6693 that didn't make a lot of sense have been brought in line. This has
6694 also involved a cleanup of sorts in safestack.h to more correctly
6695 map type-safe stack functions onto their plain stack counterparts.
6696 This work has also resulted in a variety of "const"ifications of
6697 lots of the code, especially "_cmp" operations which should normally
6698 be prototyped with "const" parameters anyway.
6701 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6702 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6703 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6704 where all of 'md' is used each time the PRNG is used, but 'state'
6705 is used only indexed by a cyclic counter. As entropy may not be
6706 well distributed from the beginning, 'md' is important as a
6707 chaining variable. However, the output function chains only half
6708 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6709 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6710 in all of 'state' being rewritten, with the new values depending
6711 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6714 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6715 the handshake is continued after ssl_verify_cert_chain();
6716 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6717 can lead to 'unexplainable' connection aborts later.
6718 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6720 *) Major EVP API cipher revision.
6721 Add hooks for extra EVP features. This allows various cipher
6722 parameters to be set in the EVP interface. Support added for variable
6723 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6724 setting of RC2 and RC5 parameters.
6726 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6729 Remove lots of duplicated code from the EVP library. For example *every*
6730 cipher init() function handles the 'iv' in the same way according to the
6731 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6732 for CFB and OFB modes they zero ctx->num.
6734 New functionality allows removal of S/MIME code RC2 hack.
6736 Most of the routines have the same form and so can be declared in terms
6739 By shifting this to the top level EVP_CipherInit() it can be removed from
6740 all individual ciphers. If the cipher wants to handle IVs or keys
6741 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6744 Change lots of functions like EVP_EncryptUpdate() to now return a
6745 value: although software versions of the algorithms cannot fail
6746 any installed hardware versions can.
6749 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6750 this option is set, tolerate broken clients that send the negotiated
6751 protocol version number instead of the requested protocol version
6755 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6756 i.e. non-zero for export ciphersuites, zero otherwise.
6757 Previous versions had this flag inverted, inconsistent with
6758 rsa_tmp_cb (..._TMP_RSA_CB).
6759 [Bodo Moeller; problem reported by Amit Chopra]
6761 *) Add missing DSA library text string. Work around for some IIS
6762 key files with invalid SEQUENCE encoding.
6765 *) Add a document (doc/standards.txt) that list all kinds of standards
6766 and so on that are implemented in OpenSSL.
6769 *) Enhance c_rehash script. Old version would mishandle certificates
6770 with the same subject name hash and wouldn't handle CRLs at all.
6771 Added -fingerprint option to crl utility, to support new c_rehash
6775 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6778 *) Fix for SSL server purpose checking. Server checking was
6779 rejecting certificates which had extended key usage present
6780 but no ssl client purpose.
6781 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6783 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6784 is a little unclear about how a blank password is handled.
6785 Since the password in encoded as a BMPString with terminating
6786 double NULL a zero length password would end up as just the
6787 double NULL. However no password at all is different and is
6788 handled differently in the PKCS#12 key generation code. NS
6789 treats a blank password as zero length. MSIE treats it as no
6790 password on export: but it will try both on import. We now do
6791 the same: PKCS12_parse() tries zero length and no password if
6792 the password is set to "" or NULL (NULL is now a valid password:
6793 it wasn't before) as does the pkcs12 application.
6796 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6797 perror when PEM_read_bio_X509_REQ fails, the error message must
6798 be obtained from the error queue.
6801 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6802 it in ERR_remove_state if appropriate, and change ERR_get_state
6803 accordingly to avoid race conditions (this is necessary because
6804 thread_hash is no longer constant once set).
6807 *) Bugfix for linux-elf makefile.one.
6810 *) RSA_get_default_method() will now cause a default
6811 RSA_METHOD to be chosen if one doesn't exist already.
6812 Previously this was only set during a call to RSA_new()
6813 or RSA_new_method(NULL) meaning it was possible for
6814 RSA_get_default_method() to return NULL.
6817 *) Added native name translation to the existing DSO code
6818 that will convert (if the flag to do so is set) filenames
6819 that are sufficiently small and have no path information
6820 into a canonical native form. Eg. "blah" converted to
6821 "libblah.so" or "blah.dll" etc.
6824 *) New function ERR_error_string_n(e, buf, len) which is like
6825 ERR_error_string(e, buf), but writes at most 'len' bytes
6826 including the 0 terminator. For ERR_error_string_n, 'buf'
6828 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6830 *) CONF library reworked to become more general. A new CONF
6831 configuration file reader "class" is implemented as well as a
6832 new functions (NCONF_*, for "New CONF") to handle it. The now
6833 old CONF_* functions are still there, but are reimplemented to
6834 work in terms of the new functions. Also, a set of functions
6835 to handle the internal storage of the configuration data is
6836 provided to make it easier to write new configuration file
6837 reader "classes" (I can definitely see something reading a
6838 configuration file in XML format, for example), called _CONF_*,
6839 or "the configuration storage API"...
6841 The new configuration file reading functions are:
6843 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6844 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6846 NCONF_default, NCONF_WIN32
6848 NCONF_dump_fp, NCONF_dump_bio
6850 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6851 NCONF_new creates a new CONF object. This works in the same way
6852 as other interfaces in OpenSSL, like the BIO interface.
6853 NCONF_dump_* dump the internal storage of the configuration file,
6854 which is useful for debugging. All other functions take the same
6855 arguments as the old CONF_* functions wth the exception of the
6856 first that must be a `CONF *' instead of a `LHASH *'.
6858 To make it easer to use the new classes with the old CONF_* functions,
6859 the function CONF_set_default_method is provided.
6862 *) Add '-tls1' option to 'openssl ciphers', which was already
6863 mentioned in the documentation but had not been implemented.
6864 (This option is not yet really useful because even the additional
6865 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6868 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6869 OpenSSL-based applications) load shared libraries and bind to
6870 them in a portable way.
6871 [Geoff Thorpe, with contributions from Richard Levitte]
6873 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6875 *) Make sure _lrotl and _lrotr are only used with MSVC.
6877 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6878 (the default implementation of RAND_status).
6880 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6881 to '-clrext' (= clear extensions), as intended and documented.
6882 [Bodo Moeller; inconsistency pointed out by Michael Attili
6885 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6886 was larger than the MD block size.
6887 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6889 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6890 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6891 using the passed key: if the passed key was a private key the result
6892 of X509_print(), for example, would be to print out all the private key
6896 *) des_quad_cksum() byte order bug fix.
6897 [Ulf Möller, using the problem description in krb4-0.9.7, where
6898 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6900 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6902 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6904 *) For easily testing in shell scripts whether some command
6905 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6906 returns with exit code 0 iff no command of the given name is available.
6907 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6908 the output goes to stdout and nothing is printed to stderr.
6909 Additional arguments are always ignored.
6911 Since for each cipher there is a command of the same name,
6912 the 'no-cipher' compilation switches can be tested this way.
6914 ('openssl no-XXX' is not able to detect pseudo-commands such
6915 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6918 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6921 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6922 is set; it will be thrown away anyway because each handshake creates
6924 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6925 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6926 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6927 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6930 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6931 'Q' and 'R' lose their special meanings (quit/renegotiate).
6932 This is part of what -quiet does; unlike -quiet, -ign_eof
6933 does not suppress any output.
6936 *) Add compatibility options to the purpose and trust code. The
6937 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6938 accepts a certificate or CA, this was the previous behaviour,
6939 with all the associated security issues.
6941 X509_TRUST_COMPAT is the old trust behaviour: only and
6942 automatically trust self signed roots in certificate store. A
6943 new trust setting X509_TRUST_DEFAULT is used to specify that
6944 a purpose has no associated trust setting and it should instead
6945 use the value in the default purpose.
6948 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6949 and fix a memory leak.
6952 *) In util/mkerr.pl (which implements 'make errors'), preserve
6953 reason strings from the previous version of the .c file, as
6954 the default to have only downcase letters (and digits) in
6955 automatically generated reasons codes is not always appropriate.
6958 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6959 using strerror. Previously, ERR_reason_error_string() returned
6960 library names as reason strings for SYSerr; but SYSerr is a special
6961 case where small numbers are errno values, not library numbers.
6964 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6965 converts DSA parameters into DH parameters. (When creating parameters,
6966 DSA_generate_parameters is used.)
6969 *) Include 'length' (recommended exponent length) in C code generated
6970 by 'openssl dhparam -C'.
6973 *) The second argument to set_label in perlasm was already being used
6974 so couldn't be used as a "file scope" flag. Moved to third argument
6978 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6979 instead of RAND_bytes for encryption IVs and salts.
6982 *) Include RAND_status() into RAND_METHOD instead of implementing
6983 it only for md_rand.c Otherwise replacing the PRNG by calling
6984 RAND_set_rand_method would be impossible.
6987 *) Don't let DSA_generate_key() enter an infinite loop if the random
6988 number generation fails.
6991 *) New 'rand' application for creating pseudo-random output.
6994 *) Added configuration support for Linux/IA64
6995 [Rolf Haberrecker <rolf@suse.de>]
6997 *) Assembler module support for Mingw32.
7000 *) Shared library support for HPUX (in shlib/).
7001 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7003 *) Shared library support for Solaris gcc.
7004 [Lutz Behnke <behnke@trustcenter.de>]
7006 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7008 *) PKCS7_encrypt() was adding text MIME headers twice because they
7009 were added manually and by SMIME_crlf_copy().
7012 *) In bntest.c don't call BN_rand with zero bits argument.
7013 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7015 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7016 case was implemented. This caused BN_div_recp() to fail occasionally.
7019 *) Add an optional second argument to the set_label() in the perl
7020 assembly language builder. If this argument exists and is set
7021 to 1 it signals that the assembler should use a symbol whose
7022 scope is the entire file, not just the current function. This
7023 is needed with MASM which uses the format label:: for this scope.
7024 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7026 *) Change the ASN1 types so they are typedefs by default. Before
7027 almost all types were #define'd to ASN1_STRING which was causing
7028 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7032 *) Change names of new functions to the new get1/get0 naming
7033 convention: After 'get1', the caller owns a reference count
7034 and has to call ..._free; 'get0' returns a pointer to some
7035 data structure without incrementing reference counters.
7036 (Some of the existing 'get' functions increment a reference
7037 counter, some don't.)
7038 Similarly, 'set1' and 'add1' functions increase reference
7039 counters or duplicate objects.
7042 *) Allow for the possibility of temp RSA key generation failure:
7043 the code used to assume it always worked and crashed on failure.
7046 *) Fix potential buffer overrun problem in BIO_printf().
7047 [Ulf Möller, using public domain code by Patrick Powell; problem
7048 pointed out by David Sacerdote <das33@cornell.edu>]
7050 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7051 RAND_egd() and RAND_status(). In the command line application,
7052 the EGD socket can be specified like a seed file using RANDFILE
7056 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7057 Some CAs (e.g. Verisign) distribute certificates in this form.
7060 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7061 list to exclude them. This means that no special compilation option
7062 is needed to use anonymous DH: it just needs to be included in the
7066 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7067 EVP_MD_type. The old functionality is available in a new macro called
7068 EVP_MD_md(). Change code that uses it and update docs.
7071 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7072 where the 'void *' argument is replaced by a function pointer argument.
7073 Previously 'void *' was abused to point to functions, which works on
7074 many platforms, but is not correct. As these functions are usually
7075 called by macros defined in OpenSSL header files, most source code
7076 should work without changes.
7079 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7080 sections with information on -D... compiler switches used for
7081 compiling the library so that applications can see them. To enable
7082 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7083 must be defined. E.g.,
7084 #define OPENSSL_ALGORITHM_DEFINES
7085 #include <openssl/opensslconf.h>
7086 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7087 [Richard Levitte, Ulf and Bodo Möller]
7089 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7093 *) Change the 'other' type in certificate aux info to a STACK_OF
7094 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7095 the required ASN1 format: arbitrary types determined by an OID.
7098 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7099 argument to 'req'. This is not because the function is newer or
7100 better than others it just uses the work 'NEW' in the certificate
7101 request header lines. Some software needs this.
7104 *) Reorganise password command line arguments: now passwords can be
7105 obtained from various sources. Delete the PEM_cb function and make
7106 it the default behaviour: i.e. if the callback is NULL and the
7107 usrdata argument is not NULL interpret it as a null terminated pass
7108 phrase. If usrdata and the callback are NULL then the pass phrase
7109 is prompted for as usual.
7112 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7113 the support is automatically enabled. The resulting binaries will
7114 autodetect the card and use it if present.
7115 [Ben Laurie and Compaq Inc.]
7117 *) Work around for Netscape hang bug. This sends certificate request
7118 and server done in one record. Since this is perfectly legal in the
7119 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7120 the bugs/SSLv3 entry for more info.
7123 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7126 *) Add -rand argument to smime and pkcs12 applications and read/write
7130 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7133 *) Add command line password options to the remaining applications.
7136 *) Bug fix for BN_div_recp() for numerators with an even number of
7140 *) More tests in bntest.c, and changed test_bn output.
7143 *) ./config recognizes MacOS X now.
7146 *) Bug fix for BN_div() when the first words of num and divsor are
7147 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7150 *) Add support for various broken PKCS#8 formats, and command line
7151 options to produce them.
7154 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7155 get temporary BIGNUMs from a BN_CTX.
7158 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7162 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7163 include a #define from the old name to the new. The original intent
7164 was that statically linked binaries could for example just call
7165 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7166 link with digests. This never worked becayse SSLeay_add_all_digests()
7167 and SSLeay_add_all_ciphers() were in the same source file so calling
7168 one would link with the other. They are now in separate source files.
7171 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7174 *) Use a less unusual form of the Miller-Rabin primality test (it used
7175 a binary algorithm for exponentiation integrated into the Miller-Rabin
7176 loop, our standard modexp algorithms are faster).
7179 *) Support for the EBCDIC character set completed.
7180 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7182 *) Source code cleanups: use const where appropriate, eliminate casts,
7183 use void * instead of char * in lhash.
7186 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7187 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7188 this the server could overwrite ephemeral keys that the client
7192 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7193 using 50 iterations of the Rabin-Miller test.
7195 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7196 iterations of the Rabin-Miller test as required by the appendix
7197 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7198 As BN_is_prime_fasttest includes trial division, DSA parameter
7199 generation becomes much faster.
7201 This implies a change for the callback functions in DSA_is_prime
7202 and DSA_generate_parameters: The callback function is called once
7203 for each positive witness in the Rabin-Miller test, not just
7204 occasionally in the inner loop; and the parameters to the
7205 callback function now provide an iteration count for the outer
7206 loop rather than for the current invocation of the inner loop.
7207 DSA_generate_parameters additionally can call the callback
7208 function with an 'iteration count' of -1, meaning that a
7209 candidate has passed the trial division test (when q is generated
7210 from an application-provided seed, trial division is skipped).
7213 *) New function BN_is_prime_fasttest that optionally does trial
7214 division before starting the Rabin-Miller test and has
7215 an additional BN_CTX * argument (whereas BN_is_prime always
7216 has to allocate at least one BN_CTX).
7217 'callback(1, -1, cb_arg)' is called when a number has passed the
7218 trial division stage.
7221 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7225 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7228 *) New function BN_pseudo_rand().
7231 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7232 bignum version of BN_from_montgomery() with the working code from
7233 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7237 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7238 made it impossible to use the same SSL_SESSION data structure in
7239 SSL2 clients in multiple threads.
7242 *) The return value of RAND_load_file() no longer counts bytes obtained
7243 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7244 to seed the PRNG (previously an explicit byte count was required).
7245 [Ulf Möller, Bodo Möller]
7247 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7248 used (char *) instead of (void *) and had casts all over the place.
7251 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7254 *) Retain source code compatibility for BN_prime_checks macro:
7255 BN_is_prime(..., BN_prime_checks, ...) now uses
7256 BN_prime_checks_for_size to determine the appropriate number of
7257 Rabin-Miller iterations.
7260 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7261 DH_CHECK_P_NOT_SAFE_PRIME.
7262 (Check if this is true? OpenPGP calls them "strong".)
7265 *) Merge the functionality of "dh" and "gendh" programs into a new program
7266 "dhparam". The old programs are retained for now but will handle DH keys
7267 (instead of parameters) in future.
7270 *) Make the ciphers, s_server and s_client programs check the return values
7271 when a new cipher list is set.
7274 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7275 ciphers. Before when the 56bit ciphers were enabled the sorting was
7278 The syntax for the cipher sorting has been extended to support sorting by
7279 cipher-strength (using the strength_bits hard coded in the tables).
7280 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7282 Fix a bug in the cipher-command parser: when supplying a cipher command
7283 string with an "undefined" symbol (neither command nor alphanumeric
7284 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7285 an error is flagged.
7287 Due to the strength-sorting extension, the code of the
7288 ssl_create_cipher_list() function was completely rearranged. I hope that
7289 the readability was also increased :-)
7290 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7292 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7293 for the first serial number and places 2 in the serial number file. This
7294 avoids problems when the root CA is created with serial number zero and
7295 the first user certificate has the same issuer name and serial number
7299 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7300 the new code. Add documentation for this stuff.
7303 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7304 X509_*() to X509at_*() on the grounds that they don't handle X509
7305 structures and behave in an analagous way to the X509v3 functions:
7306 they shouldn't be called directly but wrapper functions should be used
7309 So we also now have some wrapper functions that call the X509at functions
7310 when passed certificate requests. (TO DO: similar things can be done with
7311 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7312 things. Some of these need some d2i or i2d and print functionality
7313 because they handle more complex structures.)
7316 *) Add missing #ifndefs that caused missing symbols when building libssl
7317 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7318 NO_RSA in ssl/s2*.c.
7319 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7321 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7322 has a return value which indicates the quality of the random data
7323 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7324 error queue. New function RAND_pseudo_bytes() generates output that is
7325 guaranteed to be unique but not unpredictable. RAND_add is like
7326 RAND_seed, but takes an extra argument for an entropy estimate
7327 (RAND_seed always assumes full entropy).
7330 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7331 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7332 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7333 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7334 false-positive rate of at most 2^-80 for random input.
7337 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7340 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7341 in the 0.9.5 release), this returns the chain
7342 from an X509_CTX structure with a dup of the stack and all
7343 the X509 reference counts upped: so the stack will exist
7344 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7347 Also make SSL_SESSION_print() print out the verify return
7351 *) Add manpage for the pkcs12 command. Also change the default
7352 behaviour so MAC iteration counts are used unless the new
7353 -nomaciter option is used. This improves file security and
7354 only older versions of MSIE (4.0 for example) need it.
7357 *) Honor the no-xxx Configure options when creating .DEF files.
7360 *) Add PKCS#10 attributes to field table: challengePassword,
7361 unstructuredName and unstructuredAddress. These are taken from
7362 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7363 international characters are used.
7365 More changes to X509_ATTRIBUTE code: allow the setting of types
7366 based on strings. Remove the 'loc' parameter when adding
7367 attributes because these will be a SET OF encoding which is sorted
7371 *) Initial changes to the 'req' utility to allow request generation
7372 automation. This will allow an application to just generate a template
7373 file containing all the field values and have req construct the
7376 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7377 used all over the place including certificate requests and PKCS#7
7378 structures. They are currently handled manually where necessary with
7379 some primitive wrappers for PKCS#7. The new functions behave in a
7380 manner analogous to the X509 extension functions: they allow
7381 attributes to be looked up by NID and added.
7383 Later something similar to the X509V3 code would be desirable to
7384 automatically handle the encoding, decoding and printing of the
7385 more complex types. The string types like challengePassword can
7386 be handled by the string table functions.
7388 Also modified the multi byte string table handling. Now there is
7389 a 'global mask' which masks out certain types. The table itself
7390 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7391 is useful when for example there is only one permissible type
7392 (as in countryName) and using the mask might result in no valid
7396 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7397 SSL_get_peer_finished to allow applications to obtain the latest
7398 Finished messages sent to the peer or expected from the peer,
7399 respectively. (SSL_get_peer_finished is usually the Finished message
7400 actually received from the peer, otherwise the protocol will be aborted.)
7402 As the Finished message are message digests of the complete handshake
7403 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7404 be used for external authentication procedures when the authentication
7405 provided by SSL/TLS is not desired or is not enough.
7408 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7409 the host supports BWX extension and if Compaq C is present on the
7410 $PATH. Just exploiting of the BWX extension results in 20-30%
7411 performance kick for some algorithms, e.g. DES and RC4 to mention
7412 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7416 *) Add support for MS "fast SGC". This is arguably a violation of the
7417 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7418 weak crypto and after checking the certificate is SGC a second one
7419 with strong crypto. MS SGC stops the first handshake after receiving
7420 the server certificate message and sends a second client hello. Since
7421 a server will typically do all the time consuming operations before
7422 expecting any further messages from the client (server key exchange
7423 is the most expensive) there is little difference between the two.
7425 To get OpenSSL to support MS SGC we have to permit a second client
7426 hello message after we have sent server done. In addition we have to
7427 reset the MAC if we do get this second client hello.
7430 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7431 if a DER encoded private key is RSA or DSA traditional format. Changed
7432 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7433 format DER encoded private key. Newer code should use PKCS#8 format which
7434 has the key type encoded in the ASN1 structure. Added DER private key
7435 support to pkcs8 application.
7438 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7439 ciphersuites has been selected (as required by the SSL 3/TLS 1
7440 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7441 is set, we interpret this as a request to violate the specification
7442 (the worst that can happen is a handshake failure, and 'correct'
7443 behaviour would result in a handshake failure anyway).
7446 *) In SSL_CTX_add_session, take into account that there might be multiple
7447 SSL_SESSION structures with the same session ID (e.g. when two threads
7448 concurrently obtain them from an external cache).
7449 The internal cache can handle only one SSL_SESSION with a given ID,
7450 so if there's a conflict, we now throw out the old one to achieve
7454 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7455 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7456 some routines that use cipher OIDs: some ciphers do not have OIDs
7457 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7461 *) Simplify the trust setting structure and code. Now we just have
7462 two sequences of OIDs for trusted and rejected settings. These will
7463 typically have values the same as the extended key usage extension
7464 and any application specific purposes.
7466 The trust checking code now has a default behaviour: it will just
7467 check for an object with the same NID as the passed id. Functions can
7468 be provided to override either the default behaviour or the behaviour
7469 for a given id. SSL client, server and email already have functions
7470 in place for compatibility: they check the NID and also return "trusted"
7471 if the certificate is self signed.
7474 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7475 traditional format into an EVP_PKEY structure.
7478 *) Add a password callback function PEM_cb() which either prompts for
7479 a password if usr_data is NULL or otherwise assumes it is a null
7480 terminated password. Allow passwords to be passed on command line
7481 environment or config files in a few more utilities.
7484 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7485 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7486 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7487 Update documentation.
7490 *) Support for ASN1 "NULL" type. This could be handled before by using
7491 ASN1_TYPE but there wasn't any function that would try to read a NULL
7492 and produce an error if it couldn't. For compatibility we also have
7493 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7494 don't allocate anything because they don't need to.
7497 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7499 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7501 *) Rebuild of the memory allocation routines used by OpenSSL code and
7502 possibly others as well. The purpose is to make an interface that
7503 provide hooks so anyone can build a separate set of allocation and
7504 deallocation routines to be used by OpenSSL, for example memory
7505 pool implementations, or something else, which was previously hard
7506 since Malloc(), Realloc() and Free() were defined as macros having
7507 the values malloc, realloc and free, respectively (except for Win32
7508 compilations). The same is provided for memory debugging code.
7509 OpenSSL already comes with functionality to find memory leaks, but
7510 this gives people a chance to debug other memory problems.
7512 With these changes, a new set of functions and macros have appeared:
7514 CRYPTO_set_mem_debug_functions() [F]
7515 CRYPTO_get_mem_debug_functions() [F]
7516 CRYPTO_dbg_set_options() [F]
7517 CRYPTO_dbg_get_options() [F]
7518 CRYPTO_malloc_debug_init() [M]
7520 The memory debug functions are NULL by default, unless the library
7521 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7522 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7523 gives the standard debugging functions that come with OpenSSL) or
7524 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7525 provided by the library user) must be used. When the standard
7526 debugging functions are used, CRYPTO_dbg_set_options can be used to
7527 request additional information:
7528 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7529 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7531 Also, things like CRYPTO_set_mem_functions will always give the
7532 expected result (the new set of functions is used for allocation
7533 and deallocation) at all times, regardless of platform and compiler
7536 To finish it up, some functions that were never use in any other
7537 way than through macros have a new API and new semantic:
7540 CRYPTO_dbg_realloc()
7543 All macros of value have retained their old syntax.
7544 [Richard Levitte and Bodo Moeller]
7546 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7547 ordering of SMIMECapabilities wasn't in "strength order" and there
7548 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7552 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7553 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7554 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7556 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7557 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7558 functionality to handle multipart/signed properly) and a utility
7559 called 'smime' to call all this stuff. This is based on code I
7560 originally wrote for Celo who have kindly allowed it to be
7561 included in OpenSSL.
7564 *) Add variants des_set_key_checked and des_set_key_unchecked of
7565 des_set_key (aka des_key_sched). Global variable des_check_key
7566 decides which of these is called by des_set_key; this way
7567 des_check_key behaves as it always did, but applications and
7568 the library itself, which was buggy for des_check_key == 1,
7569 have a cleaner way to pick the version they need.
7572 *) New function PKCS12_newpass() which changes the password of a
7576 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7577 dynamic mix. In both cases the ids can be used as an index into the
7578 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7579 functions so they accept a list of the field values and the
7580 application doesn't need to directly manipulate the X509_TRUST
7584 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7588 *) Modify the way the V3 extension code looks up extensions. This now
7589 works in a similar way to the object code: we have some "standard"
7590 extensions in a static table which is searched with OBJ_bsearch()
7591 and the application can add dynamic ones if needed. The file
7592 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7593 updated whenever a new extension is added to the core code and kept
7594 in ext_nid order. There is a simple program 'tabtest.c' which checks
7595 this. New extensions are not added too often so this file can readily
7596 be maintained manually.
7598 There are two big advantages in doing things this way. The extensions
7599 can be looked up immediately and no longer need to be "added" using
7600 X509V3_add_standard_extensions(): this function now does nothing.
7601 [Side note: I get *lots* of email saying the extension code doesn't
7602 work because people forget to call this function]
7603 Also no dynamic allocation is done unless new extensions are added:
7604 so if we don't add custom extensions there is no need to call
7605 X509V3_EXT_cleanup().
7608 *) Modify enc utility's salting as follows: make salting the default. Add a
7609 magic header, so unsalted files fail gracefully instead of just decrypting
7610 to garbage. This is because not salting is a big security hole, so people
7611 should be discouraged from doing it.
7614 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7615 digest to be passed on the command line but it only used this
7616 parameter when signing a certificate. Modified so all relevant
7617 operations are affected by the digest parameter including the
7618 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7619 DSA key was used because it didn't fix the digest.
7622 *) Initial certificate chain verify code. Currently tests the untrusted
7623 certificates for consistency with the verify purpose (which is set
7624 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7626 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7627 this is because it will reject chains with invalid extensions whereas
7628 every previous version of OpenSSL and SSLeay made no checks at all.
7630 Trust code: checks the root CA for the relevant trust settings. Trust
7631 settings have an initial value consistent with the verify purpose: e.g.
7632 if the verify purpose is for SSL client use it expects the CA to be
7633 trusted for SSL client use. However the default value can be changed to
7634 permit custom trust settings: one example of this would be to only trust
7635 certificates from a specific "secure" set of CAs.
7637 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7638 which should be used for version portability: especially since the
7639 verify structure is likely to change more often now.
7641 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7642 to set them. If not set then assume SSL clients will verify SSL servers
7645 Two new options to the verify program: -untrusted allows a set of
7646 untrusted certificates to be passed in and -purpose which sets the
7647 intended purpose of the certificate. If a purpose is set then the
7648 new chain verify code is used to check extension consistency.
7651 *) Support for the authority information access extension.
7654 *) Modify RSA and DSA PEM read routines to transparently handle
7655 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7656 public keys in a format compatible with certificate
7657 SubjectPublicKeyInfo structures. Unfortunately there were already
7658 functions called *_PublicKey_* which used various odd formats so
7659 these are retained for compatibility: however the DSA variants were
7660 never in a public release so they have been deleted. Changed dsa/rsa
7661 utilities to handle the new format: note no releases ever handled public
7662 keys so we should be OK.
7664 The primary motivation for this change is to avoid the same fiasco
7665 that dogs private keys: there are several incompatible private key
7666 formats some of which are standard and some OpenSSL specific and
7667 require various evil hacks to allow partial transparent handling and
7668 even then it doesn't work with DER formats. Given the option anything
7669 other than PKCS#8 should be dumped: but the other formats have to
7670 stay in the name of compatibility.
7672 With public keys and the benefit of hindsight one standard format
7673 is used which works with EVP_PKEY, RSA or DSA structures: though
7674 it clearly returns an error if you try to read the wrong kind of key.
7676 Added a -pubkey option to the 'x509' utility to output the public key.
7677 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7678 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7679 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7680 that do the same as the EVP_PKEY_assign_*() except they up the
7681 reference count of the added key (they don't "swallow" the
7685 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7686 CRLs would fail if the file contained no certificates or no CRLs:
7687 added a new function to read in both types and return the number
7688 read: this means that if none are read it will be an error. The
7689 DER versions of the certificate and CRL reader would always fail
7690 because it isn't possible to mix certificates and CRLs in DER format
7691 without choking one or the other routine. Changed this to just read
7692 a certificate: this is the best we can do. Also modified the code
7693 in apps/verify.c to take notice of return codes: it was previously
7694 attempting to read in certificates from NULL pointers and ignoring
7695 any errors: this is one reason why the cert and CRL reader seemed
7696 to work. It doesn't check return codes from the default certificate
7697 routines: these may well fail if the certificates aren't installed.
7700 *) Code to support otherName option in GeneralName.
7703 *) First update to verify code. Change the verify utility
7704 so it warns if it is passed a self signed certificate:
7705 for consistency with the normal behaviour. X509_verify
7706 has been modified to it will now verify a self signed
7707 certificate if *exactly* the same certificate appears
7708 in the store: it was previously impossible to trust a
7709 single self signed certificate. This means that:
7710 openssl verify ss.pem
7711 now gives a warning about a self signed certificate but
7712 openssl verify -CAfile ss.pem ss.pem
7716 *) For servers, store verify_result in SSL_SESSION data structure
7717 (and add it to external session representation).
7718 This is needed when client certificate verifications fails,
7719 but an application-provided verification callback (set by
7720 SSL_CTX_set_cert_verify_callback) allows accepting the session
7721 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7722 but returns 1): When the session is reused, we have to set
7723 ssl->verify_result to the appropriate error code to avoid
7725 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7727 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7728 case in PKCS7_dataInit() where the signed PKCS7 structure
7729 didn't contain any existing data because it was being created.
7730 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7732 *) Add a salt to the key derivation routines in enc.c. This
7733 forms the first 8 bytes of the encrypted file. Also add a
7734 -S option to allow a salt to be input on the command line.
7737 *) New function X509_cmp(). Oddly enough there wasn't a function
7738 to compare two certificates. We do this by working out the SHA1
7739 hash and comparing that. X509_cmp() will be needed by the trust
7743 *) SSL_get1_session() is like SSL_get_session(), but increments
7744 the reference count in the SSL_SESSION returned.
7745 [Geoff Thorpe <geoff@eu.c2.net>]
7747 *) Fix for 'req': it was adding a null to request attributes.
7748 Also change the X509_LOOKUP and X509_INFO code to handle
7749 certificate auxiliary information.
7752 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7756 *) Add the possibility to add extra information to the memory leak
7757 detecting output, to form tracebacks, showing from where each
7758 allocation was originated: CRYPTO_push_info("constant string") adds
7759 the string plus current file name and line number to a per-thread
7760 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7761 is like calling CYRPTO_pop_info() until the stack is empty.
7762 Also updated memory leak detection code to be multi-thread-safe.
7765 *) Add options -text and -noout to pkcs7 utility and delete the
7766 encryption options which never did anything. Update docs.
7769 *) Add options to some of the utilities to allow the pass phrase
7770 to be included on either the command line (not recommended on
7771 OSes like Unix) or read from the environment. Update the
7772 manpages and fix a few bugs.
7775 *) Add a few manpages for some of the openssl commands.
7778 *) Fix the -revoke option in ca. It was freeing up memory twice,
7779 leaking and not finding already revoked certificates.
7782 *) Extensive changes to support certificate auxiliary information.
7783 This involves the use of X509_CERT_AUX structure and X509_AUX
7784 functions. An X509_AUX function such as PEM_read_X509_AUX()
7785 can still read in a certificate file in the usual way but it
7786 will also read in any additional "auxiliary information". By
7787 doing things this way a fair degree of compatibility can be
7788 retained: existing certificates can have this information added
7789 using the new 'x509' options.
7791 Current auxiliary information includes an "alias" and some trust
7792 settings. The trust settings will ultimately be used in enhanced
7793 certificate chain verification routines: currently a certificate
7794 can only be trusted if it is self signed and then it is trusted
7798 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7799 The problem was that one of the replacement routines had not been working
7800 since SSLeay releases. For now the offending routine has been replaced
7801 with non-optimised assembler. Even so, this now gives around 95%
7802 performance improvement for 1024 bit RSA signs.
7805 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7806 handling. Most clients have the effective key size in bits equal to
7807 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7808 A few however don't do this and instead use the size of the decrypted key
7809 to determine the RC2 key length and the AlgorithmIdentifier to determine
7810 the effective key length. In this case the effective key length can still
7811 be 40 bits but the key length can be 168 bits for example. This is fixed
7812 by manually forcing an RC2 key into the EVP_PKEY structure because the
7813 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7814 the key length and effective key length are equal.
7817 *) Add a bunch of functions that should simplify the creation of
7818 X509_NAME structures. Now you should be able to do:
7819 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7820 and have it automatically work out the correct field type and fill in
7821 the structures. The more adventurous can try:
7822 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7823 and it will (hopefully) work out the correct multibyte encoding.
7826 *) Change the 'req' utility to use the new field handling and multibyte
7827 copy routines. Before the DN field creation was handled in an ad hoc
7828 way in req, ca, and x509 which was rather broken and didn't support
7829 BMPStrings or UTF8Strings. Since some software doesn't implement
7830 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7831 using the dirstring_type option. See the new comment in the default
7832 openssl.cnf for more info.
7835 *) Make crypto/rand/md_rand.c more robust:
7836 - Assure unique random numbers after fork().
7837 - Make sure that concurrent threads access the global counter and
7838 md serializably so that we never lose entropy in them
7839 or use exactly the same state in multiple threads.
7840 Access to the large state is not always serializable because
7841 the additional locking could be a performance killer, and
7842 md should be large enough anyway.
7845 *) New file apps/app_rand.c with commonly needed functionality
7846 for handling the random seed file.
7848 Use the random seed file in some applications that previously did not:
7850 dsaparam -genkey (which also ignored its '-rand' option),
7853 x509 (when signing).
7854 Except on systems with /dev/urandom, it is crucial to have a random
7855 seed file at least for key creation, DSA signing, and for DH exchanges;
7856 for RSA signatures we could do without one.
7858 gendh and gendsa (unlike genrsa) used to read only the first byte
7859 of each file listed in the '-rand' option. The function as previously
7860 found in genrsa is now in app_rand.c and is used by all programs
7861 that support '-rand'.
7864 *) In RAND_write_file, use mode 0600 for creating files;
7865 don't just chmod when it may be too late.
7868 *) Report an error from X509_STORE_load_locations
7869 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7872 *) New function ASN1_mbstring_copy() this copies a string in either
7873 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7874 into an ASN1_STRING type. A mask of permissible types is passed
7875 and it chooses the "minimal" type to use or an error if not type
7879 *) Add function equivalents to the various macros in asn1.h. The old
7880 macros are retained with an M_ prefix. Code inside the library can
7881 use the M_ macros. External code (including the openssl utility)
7882 should *NOT* in order to be "shared library friendly".
7885 *) Add various functions that can check a certificate's extensions
7886 to see if it usable for various purposes such as SSL client,
7887 server or S/MIME and CAs of these types. This is currently
7888 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7889 verification. Also added a -purpose flag to x509 utility to
7890 print out all the purposes.
7893 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7897 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7898 for, obtain and decode and extension and obtain its critical flag.
7899 This allows all the necessary extension code to be handled in a
7900 single function call.
7903 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7904 platforms. See crypto/rc4/rc4_enc.c for further details.
7907 *) New -noout option to asn1parse. This causes no output to be produced
7908 its main use is when combined with -strparse and -out to extract data
7909 from a file (which may not be in ASN.1 format).
7912 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7913 when producing the local key id.
7914 [Richard Levitte <levitte@stacken.kth.se>]
7916 *) New option -dhparam in s_server. This allows a DH parameter file to be
7917 stated explicitly. If it is not stated then it tries the first server
7918 certificate file. The previous behaviour hard coded the filename
7922 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7923 a public key to be input or output. For example:
7924 openssl rsa -in key.pem -pubout -out pubkey.pem
7925 Also added necessary DSA public key functions to handle this.
7928 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7929 in the message. This was handled by allowing
7930 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7931 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7933 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7934 to the end of the strings whereas this didn't. This would cause problems
7935 if strings read with d2i_ASN1_bytes() were later modified.
7936 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7938 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7939 data and it contains EOF it will end up returning an error. This is
7940 caused by input 46 bytes long. The cause is due to the way base64
7941 BIOs find the start of base64 encoded data. They do this by trying a
7942 trial decode on each line until they find one that works. When they
7943 do a flag is set and it starts again knowing it can pass all the
7944 data directly through the decoder. Unfortunately it doesn't reset
7945 the context it uses. This means that if EOF is reached an attempt
7946 is made to pass two EOFs through the context and this causes the
7947 resulting error. This can also cause other problems as well. As is
7948 usual with these problems it takes *ages* to find and the fix is
7949 trivial: move one line.
7950 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7952 *) Ugly workaround to get s_client and s_server working under Windows. The
7953 old code wouldn't work because it needed to select() on sockets and the
7954 tty (for keypresses and to see if data could be written). Win32 only
7955 supports select() on sockets so we select() with a 1s timeout on the
7956 sockets and then see if any characters are waiting to be read, if none
7957 are present then we retry, we also assume we can always write data to
7958 the tty. This isn't nice because the code then blocks until we've
7959 received a complete line of data and it is effectively polling the
7960 keyboard at 1s intervals: however it's quite a bit better than not
7961 working at all :-) A dedicated Windows application might handle this
7962 with an event loop for example.
7965 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7966 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7967 will be called when RSA_sign() and RSA_verify() are used. This is useful
7968 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7969 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7970 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7971 This necessitated the support of an extra signature type NID_md5_sha1
7972 for SSL signatures and modifications to the SSL library to use it instead
7973 of calling RSA_public_decrypt() and RSA_private_encrypt().
7976 *) Add new -verify -CAfile and -CApath options to the crl program, these
7977 will lookup a CRL issuers certificate and verify the signature in a
7978 similar way to the verify program. Tidy up the crl program so it
7979 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7980 less strict. It will now permit CRL extensions even if it is not
7981 a V2 CRL: this will allow it to tolerate some broken CRLs.
7984 *) Initialize all non-automatic variables each time one of the openssl
7985 sub-programs is started (this is necessary as they may be started
7986 multiple times from the "OpenSSL>" prompt).
7987 [Lennart Bang, Bodo Moeller]
7989 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7990 removing all other RSA functionality (this is what NO_RSA does). This
7991 is so (for example) those in the US can disable those operations covered
7992 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7996 *) Non-copying interface to BIO pairs.
7997 (still largely untested)
8000 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8001 ASCII string. This was handled independently in various places before.
8004 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8005 UTF8 strings a character at a time.
8008 *) Use client_version from client hello to select the protocol
8009 (s23_srvr.c) and for RSA client key exchange verification
8010 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8013 *) Add various utility functions to handle SPKACs, these were previously
8014 handled by poking round in the structure internals. Added new function
8015 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8016 print, verify and generate SPKACs. Based on an original idea from
8017 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8020 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8023 *) Allow the config file extension section to be overwritten on the
8024 command line. Based on an original idea from Massimiliano Pala
8025 <madwolf@comune.modena.it>. The new option is called -extensions
8026 and can be applied to ca, req and x509. Also -reqexts to override
8027 the request extensions in req and -crlexts to override the crl extensions
8031 *) Add new feature to the SPKAC handling in ca. Now you can include
8032 the same field multiple times by preceding it by "XXXX." for example:
8035 this is the same syntax as used in the req config file.
8038 *) Allow certificate extensions to be added to certificate requests. These
8039 are specified in a 'req_extensions' option of the req section of the
8040 config file. They can be printed out with the -text option to req but
8041 are otherwise ignored at present.
8044 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8045 data read consists of only the final block it would not decrypted because
8046 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8047 A misplaced 'break' also meant the decrypted final block might not be
8048 copied until the next read.
8051 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8052 a few extra parameters to the DH structure: these will be useful if
8053 for example we want the value of 'q' or implement X9.42 DH.
8056 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8057 provides hooks that allow the default DSA functions or functions on a
8058 "per key" basis to be replaced. This allows hardware acceleration and
8059 hardware key storage to be handled without major modification to the
8060 library. Also added low level modexp hooks and CRYPTO_EX structure and
8061 associated functions.
8064 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8065 as "read only": it can't be written to and the buffer it points to will
8066 not be freed. Reading from a read only BIO is much more efficient than
8067 a normal memory BIO. This was added because there are several times when
8068 an area of memory needs to be read from a BIO. The previous method was
8069 to create a memory BIO and write the data to it, this results in two
8070 copies of the data and an O(n^2) reading algorithm. There is a new
8071 function BIO_new_mem_buf() which creates a read only memory BIO from
8072 an area of memory. Also modified the PKCS#7 routines to use read only
8076 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8077 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8078 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8079 but a retry condition occured while trying to read the rest.
8082 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8083 NID_pkcs7_encrypted by default: this was wrong since this should almost
8084 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8085 the encrypted data type: this is a more sensible place to put it and it
8086 allows the PKCS#12 code to be tidied up that duplicated this
8090 *) Changed obj_dat.pl script so it takes its input and output files on
8091 the command line. This should avoid shell escape redirection problems
8095 *) Initial support for certificate extension requests, these are included
8096 in things like Xenroll certificate requests. Included functions to allow
8097 extensions to be obtained and added.
8100 *) -crlf option to s_client and s_server for sending newlines as
8101 CRLF (as required by many protocols).
8104 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8106 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8107 [Ralf S. Engelschall]
8109 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8110 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8112 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8116 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8117 DH parameters/keys (q is lost during that conversion, but the resulting
8118 DH parameters contain its length).
8120 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8121 much faster than DH_generate_parameters (which creates parameters
8122 where p = 2*q + 1), and also the smaller q makes DH computations
8123 much more efficient (160-bit exponentiation instead of 1024-bit
8124 exponentiation); so this provides a convenient way to support DHE
8125 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8126 utter importance to use
8127 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8129 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8130 when such DH parameters are used, because otherwise small subgroup
8131 attacks may become possible!
8134 *) Avoid memory leak in i2d_DHparams.
8137 *) Allow the -k option to be used more than once in the enc program:
8138 this allows the same encrypted message to be read by multiple recipients.
8141 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8142 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8143 it will always use the numerical form of the OID, even if it has a short
8147 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8148 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8149 otherwise bn_mod_exp was called. In the case of hardware keys for example
8150 no private key components need be present and it might store extra data
8151 in the RSA structure, which cannot be accessed from bn_mod_exp.
8152 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8153 private key operations.
8156 *) Added support for SPARC Linux.
8159 *) pem_password_cb function type incompatibly changed from
8160 typedef int pem_password_cb(char *buf, int size, int rwflag);
8162 ....(char *buf, int size, int rwflag, void *userdata);
8163 so that applications can pass data to their callbacks:
8164 The PEM[_ASN1]_{read,write}... functions and macros now take an
8165 additional void * argument, which is just handed through whenever
8166 the password callback is called.
8167 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8169 New function SSL_CTX_set_default_passwd_cb_userdata.
8171 Compatibility note: As many C implementations push function arguments
8172 onto the stack in reverse order, the new library version is likely to
8173 interoperate with programs that have been compiled with the old
8174 pem_password_cb definition (PEM_whatever takes some data that
8175 happens to be on the stack as its last argument, and the callback
8176 just ignores this garbage); but there is no guarantee whatsoever that
8179 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8180 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8181 problems not only on Windows, but also on some Unix platforms.
8182 To avoid problematic command lines, these definitions are now in an
8183 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8184 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8187 *) MIPS III/IV assembler module is reimplemented.
8190 *) More DES library cleanups: remove references to srand/rand and
8191 delete an unused file.
8194 *) Add support for the the free Netwide assembler (NASM) under Win32,
8195 since not many people have MASM (ml) and it can be hard to obtain.
8196 This is currently experimental but it seems to work OK and pass all
8197 the tests. Check out INSTALL.W32 for info.
8200 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8201 without temporary keys kept an extra copy of the server key,
8202 and connections with temporary keys did not free everything in case
8206 *) New function RSA_check_key and new openssl rsa option -check
8207 for verifying the consistency of RSA keys.
8208 [Ulf Moeller, Bodo Moeller]
8210 *) Various changes to make Win32 compile work:
8211 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8212 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8213 comparison" warnings.
8214 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8217 *) Add a debugging option to PKCS#5 v2 key generation function: when
8218 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8219 derived keys are printed to stderr.
8222 *) Copy the flags in ASN1_STRING_dup().
8223 [Roman E. Pavlov <pre@mo.msk.ru>]
8225 *) The x509 application mishandled signing requests containing DSA
8226 keys when the signing key was also DSA and the parameters didn't match.
8228 It was supposed to omit the parameters when they matched the signing key:
8229 the verifying software was then supposed to automatically use the CA's
8230 parameters if they were absent from the end user certificate.
8232 Omitting parameters is no longer recommended. The test was also
8233 the wrong way round! This was probably due to unusual behaviour in
8234 EVP_cmp_parameters() which returns 1 if the parameters match.
8235 This meant that parameters were omitted when they *didn't* match and
8236 the certificate was useless. Certificates signed with 'ca' didn't have
8238 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8240 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8241 The interface is as follows:
8242 Applications can use
8243 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8244 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8245 "off" is now the default.
8246 The library internally uses
8247 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8248 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8249 to disable memory-checking temporarily.
8251 Some inconsistent states that previously were possible (and were
8252 even the default) are now avoided.
8254 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8255 with each memory chunk allocated; this is occasionally more helpful
8256 than just having a counter.
8258 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8260 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8264 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8265 which largely parallels "options", but is for changing API behaviour,
8266 whereas "options" are about protocol behaviour.
8267 Initial "mode" flags are:
8269 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8270 a single record has been written.
8271 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8272 retries use the same buffer location.
8273 (But all of the contents must be
8277 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8280 *) Fix problems with no-hmac etc.
8281 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8283 *) New functions RSA_get_default_method(), RSA_set_method() and
8284 RSA_get_method(). These allows replacement of RSA_METHODs without having
8285 to mess around with the internals of an RSA structure.
8288 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8289 Also really enable memory leak checks in openssl.c and in some
8291 [Chad C. Mulligan, Bodo Moeller]
8293 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8294 up the length of negative integers. This has now been simplified to just
8295 store the length when it is first determined and use it later, rather
8296 than trying to keep track of where data is copied and updating it to
8298 [Steve Henson, reported by Brien Wheeler
8299 <bwheeler@authentica-security.com>]
8301 *) Add a new function PKCS7_signatureVerify. This allows the verification
8302 of a PKCS#7 signature but with the signing certificate passed to the
8303 function itself. This contrasts with PKCS7_dataVerify which assumes the
8304 certificate is present in the PKCS#7 structure. This isn't always the
8305 case: certificates can be omitted from a PKCS#7 structure and be
8306 distributed by "out of band" means (such as a certificate database).
8309 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8310 function prototypes in pem.h, also change util/mkdef.pl to add the
8311 necessary function names.
8314 *) mk1mf.pl (used by Windows builds) did not properly read the
8315 options set by Configure in the top level Makefile, and Configure
8316 was not even able to write more than one option correctly.
8317 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8320 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8321 file to be loaded from a BIO or FILE pointer. The BIO version will
8322 for example allow memory BIOs to contain config info.
8325 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8326 Whoever hopes to achieve shared-library compatibility across versions
8327 must use this, not the compile-time macro.
8328 (Exercise 0.9.4: Which is the minimum library version required by
8330 Note: All this applies only to multi-threaded programs, others don't
8334 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8335 through a BIO pair triggered the default case, i.e.
8336 SSLerr(...,SSL_R_UNKNOWN_STATE).
8339 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8340 can use the SSL library even if none of the specific BIOs is
8344 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8345 for the encoded length.
8346 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8348 *) Add initial documentation of the X509V3 functions.
8351 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8352 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8353 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8354 secure PKCS#8 private key format with a high iteration count.
8357 *) Fix determination of Perl interpreter: A perl or perl5
8358 _directory_ in $PATH was also accepted as the interpreter.
8359 [Ralf S. Engelschall]
8361 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8362 wrong with it but it was very old and did things like calling
8363 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8367 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8368 to use the new extension code.
8371 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8372 with macros. This should make it easier to change their form, add extra
8373 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8377 *) Add to configuration table a new entry that can specify an alternative
8378 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8379 according to Mark Crispin <MRC@Panda.COM>.
8383 *) DES CBC did not update the IV. Weird.
8386 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8387 Changing the behaviour of the former might break existing programs --
8388 where IV updating is needed, des_ncbc_encrypt can be used.
8391 *) When bntest is run from "make test" it drives bc to check its
8392 calculations, as well as internally checking them. If an internal check
8393 fails, it needs to cause bc to give a non-zero result or make test carries
8394 on without noticing the failure. Fixed.
8397 *) DES library cleanups.
8400 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8401 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8402 ciphers. NOTE: although the key derivation function has been verified
8403 against some published test vectors it has not been extensively tested
8404 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8408 *) Instead of "mkdir -p", which is not fully portable, use new
8409 Perl script "util/mkdir-p.pl".
8412 *) Rewrite the way password based encryption (PBE) is handled. It used to
8413 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8414 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8415 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8416 the 'parameter' field of the AlgorithmIdentifier is passed to the
8417 underlying key generation function so it must do its own ASN1 parsing.
8418 This has also changed the EVP_PBE_CipherInit() function which now has a
8419 'parameter' argument instead of literal salt and iteration count values
8420 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8423 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8424 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8425 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8426 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8427 value was just used as a "magic string" and not used directly its
8428 value doesn't matter.
8431 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8435 *) "linux-sparc64" configuration (ultrapenguin).
8436 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8437 "linux-sparc" configuration.
8438 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8440 *) config now generates no-xxx options for missing ciphers.
8443 *) Support the EBCDIC character set (work in progress).
8444 File ebcdic.c not yet included because it has a different license.
8445 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8447 *) Support BS2000/OSD-POSIX.
8448 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8450 *) Make callbacks for key generation use void * instead of char *.
8453 *) Make S/MIME samples compile (not yet tested).
8456 *) Additional typesafe stacks.
8459 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8463 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8465 *) New configuration variant "sco5-gcc".
8467 *) Updated some demos.
8468 [Sean O Riordain, Wade Scholine]
8470 *) Add missing BIO_free at exit of pkcs12 application.
8473 *) Fix memory leak in conf.c.
8476 *) Updates for Win32 to assembler version of MD5.
8479 *) Set #! path to perl in apps/der_chop to where we found it
8480 instead of using a fixed path.
8483 *) SHA library changes for irix64-mips4-cc.
8486 *) Improvements for VMS support.
8490 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8492 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8493 This also avoids the problems with SC4.2 and unpatched SC5.
8494 [Andy Polyakov <appro@fy.chalmers.se>]
8496 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8497 These are required because of the typesafe stack would otherwise break
8498 existing code. If old code used a structure member which used to be STACK
8499 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8500 sk_num or sk_value it would produce an error because the num, data members
8501 are not present in STACK_OF. Now it just produces a warning. sk_set
8502 replaces the old method of assigning a value to sk_value
8503 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8504 that does this will no longer work (and should use sk_set instead) but
8505 this could be regarded as a "questionable" behaviour anyway.
8508 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8509 correctly handle encrypted S/MIME data.
8512 *) Change type of various DES function arguments from des_cblock
8513 (which means, in function argument declarations, pointer to char)
8514 to des_cblock * (meaning pointer to array with 8 char elements),
8515 which allows the compiler to do more typechecking; it was like
8516 that back in SSLeay, but with lots of ugly casts.
8518 Introduce new type const_des_cblock.
8521 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8522 problems: find RecipientInfo structure that matches recipient certificate
8523 and initialise the ASN1 structures properly based on passed cipher.
8526 *) Belatedly make the BN tests actually check the results.
8529 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8530 to and from BNs: it was completely broken. New compilation option
8531 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8532 key elements as negative integers.
8535 *) Reorganize and speed up MD5.
8536 [Andy Polyakov <appro@fy.chalmers.se>]
8539 [Richard Levitte <richard@levitte.org>]
8541 *) New option -out to asn1parse to allow the parsed structure to be
8542 output to a file. This is most useful when combined with the -strparse
8543 option to examine the output of things like OCTET STRINGS.
8546 *) Make SSL library a little more fool-proof by not requiring any longer
8547 that SSL_set_{accept,connect}_state be called before
8548 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8549 in many applications because usually everything *appeared* to work as
8550 intended anyway -- now it really works as intended).
8553 *) Move openssl.cnf out of lib/.
8556 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8557 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8558 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8559 [Ralf S. Engelschall]
8561 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8562 handle PKCS#7 enveloped data properly.
8563 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8565 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8566 copying pointers. The cert_st handling is changed by this in
8567 various ways (and thus what used to be known as ctx->default_cert
8568 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8569 any longer when s->cert does not give us what we need).
8570 ssl_cert_instantiate becomes obsolete by this change.
8571 As soon as we've got the new code right (possibly it already is?),
8572 we have solved a couple of bugs of the earlier code where s->cert
8573 was used as if it could not have been shared with other SSL structures.
8575 Note that using the SSL API in certain dirty ways now will result
8576 in different behaviour than observed with earlier library versions:
8577 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8578 does not influence s as it used to.
8580 In order to clean up things more thoroughly, inside SSL_SESSION
8581 we don't use CERT any longer, but a new structure SESS_CERT
8582 that holds per-session data (if available); currently, this is
8583 the peer's certificate chain and, for clients, the server's certificate
8584 and temporary key. CERT holds only those values that can have
8585 meaningful defaults in an SSL_CTX.
8588 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8589 from the internal representation. Various PKCS#7 fixes: remove some
8590 evil casts and set the enc_dig_alg field properly based on the signing
8594 *) Allow PKCS#12 password to be set from the command line or the
8595 environment. Let 'ca' get its config file name from the environment
8596 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8600 *) Allow certificate policies extension to use an IA5STRING for the
8601 organization field. This is contrary to the PKIX definition but
8602 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8606 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8607 without disallowing inline assembler and the like for non-pedantic builds.
8610 *) Support Borland C++ builder.
8611 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8616 *) SHA-1 cleanups and performance enhancements.
8617 [Andy Polyakov <appro@fy.chalmers.se>]
8619 *) Sparc v8plus assembler for the bignum library.
8620 [Andy Polyakov <appro@fy.chalmers.se>]
8622 *) Accept any -xxx and +xxx compiler options in Configure.
8625 *) Update HPUX configuration.
8628 *) Add missing sk_<type>_unshift() function to safestack.h
8629 [Ralf S. Engelschall]
8631 *) New function SSL_CTX_use_certificate_chain_file that sets the
8632 "extra_cert"s in addition to the certificate. (This makes sense
8633 only for "PEM" format files, as chains as a whole are not
8637 *) Support verify_depth from the SSL API.
8638 x509_vfy.c had what can be considered an off-by-one-error:
8639 Its depth (which was not part of the external interface)
8640 was actually counting the number of certificates in a chain;
8641 now it really counts the depth.
8644 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8645 instead of X509err, which often resulted in confusing error
8646 messages since the error codes are not globally unique
8647 (e.g. an alleged error in ssl3_accept when a certificate
8648 didn't match the private key).
8650 *) New function SSL_CTX_set_session_id_context that allows to set a default
8651 value (so that you don't need SSL_set_session_id_context for each
8652 connection using the SSL_CTX).
8655 *) OAEP decoding bug fix.
8658 *) Support INSTALL_PREFIX for package builders, as proposed by
8662 *) New Configure options "threads" and "no-threads". For systems
8663 where the proper compiler options are known (currently Solaris
8664 and Linux), "threads" is the default.
8667 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8670 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8671 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8672 such as /usr/local/bin.
8675 *) "make linux-shared" to build shared libraries.
8676 [Niels Poppe <niels@netbox.org>]
8678 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8681 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8682 extension adding in x509 utility.
8685 *) Remove NOPROTO sections and error code comments.
8688 *) Partial rewrite of the DEF file generator to now parse the ANSI
8692 *) New Configure options --prefix=DIR and --openssldir=DIR.
8695 *) Complete rewrite of the error code script(s). It is all now handled
8696 by one script at the top level which handles error code gathering,
8697 header rewriting and C source file generation. It should be much better
8698 than the old method: it now uses a modified version of Ulf's parser to
8699 read the ANSI prototypes in all header files (thus the old K&R definitions
8700 aren't needed for error creation any more) and do a better job of
8701 translating function codes into names. The old 'ASN1 error code imbedded
8702 in a comment' is no longer necessary and it doesn't use .err files which
8703 have now been deleted. Also the error code call doesn't have to appear all
8704 on one line (which resulted in some large lines...).
8707 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8710 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8711 0 (which usually indicates a closed connection), but continue reading.
8714 *) Fix some race conditions.
8717 *) Add support for CRL distribution points extension. Add Certificate
8718 Policies and CRL distribution points documentation.
8721 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8724 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8725 8 of keying material. Merlin has also confirmed interop with this fix
8726 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8727 [Merlin Hughes <merlin@baltimore.ie>]
8729 *) Fix lots of warnings.
8730 [Richard Levitte <levitte@stacken.kth.se>]
8732 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8733 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8734 [Richard Levitte <levitte@stacken.kth.se>]
8736 *) Fix problems with sizeof(long) == 8.
8737 [Andy Polyakov <appro@fy.chalmers.se>]
8739 *) Change functions to ANSI C.
8742 *) Fix typos in error codes.
8743 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8745 *) Remove defunct assembler files from Configure.
8748 *) SPARC v8 assembler BIGNUM implementation.
8749 [Andy Polyakov <appro@fy.chalmers.se>]
8751 *) Support for Certificate Policies extension: both print and set.
8752 Various additions to support the r2i method this uses.
8755 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8756 return a const string when you are expecting an allocated buffer.
8759 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8760 types DirectoryString and DisplayText.
8763 *) Add code to allow r2i extensions to access the configuration database,
8764 add an LHASH database driver and add several ctx helper functions.
8767 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8768 fail when they extended the size of a BIGNUM.
8771 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8772 support typesafe stack.
8775 *) Fix typo in SSL_[gs]et_options().
8776 [Nils Frostberg <nils@medcom.se>]
8778 *) Delete various functions and files that belonged to the (now obsolete)
8779 old X509V3 handling code.
8782 *) New Configure option "rsaref".
8785 *) Don't auto-generate pem.h.
8788 *) Introduce type-safe ASN.1 SETs.
8791 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8792 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8794 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8795 that links with OpenSSL (well at least cause lots of warnings), but fear
8796 not: the conversion is trivial, and it eliminates loads of evil casts. A
8797 few STACKed things have been converted already. Feel free to convert more.
8798 In the fullness of time, I'll do away with the STACK type altogether.
8801 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8802 specified in <certfile> by updating the entry in the index.txt file.
8803 This way one no longer has to edit the index.txt file manually for
8804 revoking a certificate. The -revoke option does the gory details now.
8805 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8807 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8808 `-text' option at all and this way the `-noout -text' combination was
8809 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8810 [Ralf S. Engelschall]
8812 *) Make sure a corresponding plain text error message exists for the
8813 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8814 verify callback function determined that a certificate was revoked.
8815 [Ralf S. Engelschall]
8817 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8818 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8819 all available cipers including rc5, which was forgotten until now.
8820 In order to let the testing shell script know which algorithms
8821 are available, a new (up to now undocumented) command
8822 "openssl list-cipher-commands" is used.
8825 *) Bugfix: s_client occasionally would sleep in select() when
8826 it should have checked SSL_pending() first.
8829 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8830 the raw DSA values prior to ASN.1 encoding.
8833 *) Tweaks to Configure
8834 [Niels Poppe <niels@netbox.org>]
8836 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8840 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8843 *) New config option to avoid instructions that are illegal on the 80386.
8844 The default code is faster, but requires at least a 486.
8847 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8848 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8849 same as SSL2_VERSION anyway.
8852 *) New "-showcerts" option for s_client.
8855 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8856 application. Various cleanups and fixes.
8859 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8860 modify error routines to work internally. Add error codes and PBE init
8861 to library startup routines.
8864 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8865 packing functions to asn1 and evp. Changed function names and error
8866 codes along the way.
8869 *) PKCS12 integration: and so it begins... First of several patches to
8870 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8871 objects to objects.h
8874 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8875 and display support for Thawte strong extranet extension.
8878 *) Add LinuxPPC support.
8879 [Jeff Dubrule <igor@pobox.org>]
8881 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8882 bn_div_words in alpha.s.
8883 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8885 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8886 OAEP isn't supported when OpenSSL is built with RSAref.
8887 [Ulf Moeller <ulf@fitug.de>]
8889 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8890 so they no longer are missing under -DNOPROTO.
8891 [Soren S. Jorvang <soren@t.dk>]
8894 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8896 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8897 doesn't work when the session is reused. Coming soon!
8900 *) Fix a security hole, that allows sessions to be reused in the wrong
8901 context thus bypassing client cert protection! All software that uses
8902 client certs and session caches in multiple contexts NEEDS PATCHING to
8903 allow session reuse! A fuller solution is in the works.
8904 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8906 *) Some more source tree cleanups (removed obsolete files
8907 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8908 permission on "config" script to be executable) and a fix for the INSTALL
8910 [Ulf Moeller <ulf@fitug.de>]
8912 *) Remove some legacy and erroneous uses of malloc, free instead of
8914 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8916 *) Make rsa_oaep_test return non-zero on error.
8917 [Ulf Moeller <ulf@fitug.de>]
8919 *) Add support for native Solaris shared libraries. Configure
8920 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8921 if someone would make that last step automatic.
8922 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8924 *) ctx_size was not built with the right compiler during "make links". Fixed.
8927 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8928 except NULL ciphers". This means the default cipher list will no longer
8929 enable NULL ciphers. They need to be specifically enabled e.g. with
8930 the string "DEFAULT:eNULL".
8933 *) Fix to RSA private encryption routines: if p < q then it would
8934 occasionally produce an invalid result. This will only happen with
8935 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8938 *) Be less restrictive and allow also `perl util/perlpath.pl
8939 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8940 because this way one can also use an interpreter named `perl5' (which is
8941 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8942 installed as `perl').
8943 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8945 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8946 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8948 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8949 advapi32.lib to Win32 build and change the pem test comparision
8950 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8951 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8952 and crypto/des/ede_cbcm_enc.c.
8955 *) DES quad checksum was broken on big-endian architectures. Fixed.
8958 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8959 Win32 test batch file so it (might) work again. The Win32 test batch file
8960 is horrible: I feel ill....
8963 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8964 in e_os.h. Audit of header files to check ANSI and non ANSI
8965 sections: 10 functions were absent from non ANSI section and not exported
8966 from Windows DLLs. Fixed up libeay.num for new functions.
8969 *) Make `openssl version' output lines consistent.
8970 [Ralf S. Engelschall]
8972 *) Fix Win32 symbol export lists for BIO functions: Added
8973 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8974 to ms/libeay{16,32}.def.
8975 [Ralf S. Engelschall]
8977 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8978 fine under Unix and passes some trivial tests I've now added. But the
8979 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8980 added to make sure no one expects that this stuff really works in the
8981 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8982 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8984 [Ralf S. Engelschall]
8986 *) Fix the generation of two part addresses in perl.
8987 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8989 *) Add config entry for Linux on MIPS.
8990 [John Tobey <jtobey@channel1.com>]
8992 *) Make links whenever Configure is run, unless we are on Windoze.
8995 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8996 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9000 *) Add a useful kludge to allow package maintainers to specify compiler and
9001 other platforms details on the command line without having to patch the
9002 Configure script everytime: One now can use ``perl Configure
9003 <id>:<details>'', i.e. platform ids are allowed to have details appended
9004 to them (seperated by colons). This is treated as there would be a static
9005 pre-configured entry in Configure's %table under key <id> with value
9006 <details> and ``perl Configure <id>'' is called. So, when you want to
9007 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9008 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9009 now, which overrides the FreeBSD-elf entry on-the-fly.
9010 [Ralf S. Engelschall]
9012 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9015 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9016 on the `perl Configure ...' command line. This way one can compile
9017 OpenSSL libraries with Position Independent Code (PIC) which is needed
9018 for linking it into DSOs.
9019 [Ralf S. Engelschall]
9021 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9025 *) Cleaned up the LICENSE document: The official contact for any license
9026 questions now is the OpenSSL core team under openssl-core@openssl.org.
9027 And add a paragraph about the dual-license situation to make sure people
9028 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9029 to the OpenSSL toolkit.
9030 [Ralf S. Engelschall]
9032 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9033 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9034 Additonally cleaned up the `make links' target: Remove unnecessary
9035 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9036 to speed processing and no longer clutter the display with confusing
9037 stuff. Instead only the actually done links are displayed.
9038 [Ralf S. Engelschall]
9040 *) Permit null encryption ciphersuites, used for authentication only. It used
9041 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9042 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9046 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9047 signed attributes when verifying signatures (this would break them),
9048 the detached data encoding was wrong and public keys obtained using
9049 X509_get_pubkey() weren't freed.
9052 *) Add text documentation for the BUFFER functions. Also added a work around
9053 to a Win95 console bug. This was triggered by the password read stuff: the
9054 last character typed gets carried over to the next fread(). If you were
9055 generating a new cert request using 'req' for example then the last
9056 character of the passphrase would be CR which would then enter the first
9060 *) Added the new `Includes OpenSSL Cryptography Software' button as
9061 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9062 button and can be used by applications based on OpenSSL to show the
9063 relationship to the OpenSSL project.
9064 [Ralf S. Engelschall]
9066 *) Remove confusing variables in function signatures in files
9067 ssl/ssl_lib.c and ssl/ssl.h.
9068 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9070 *) Don't install bss_file.c under PREFIX/include/
9071 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9073 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9074 functions that return function pointers and has support for NT specific
9075 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9076 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9077 unsigned to signed types: this was killing the Win32 compile.
9080 *) Add new certificate file to stack functions,
9081 SSL_add_dir_cert_subjects_to_stack() and
9082 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9083 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9084 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9085 This means that Apache-SSL and similar packages don't have to mess around
9086 to add as many CAs as they want to the preferred list.
9089 *) Experiment with doxygen documentation. Currently only partially applied to
9091 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9092 openssl.doxy as the configuration file.
9095 *) Get rid of remaining C++-style comments which strict C compilers hate.
9096 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9098 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9099 compiled in by default: it has problems with large keys.
9102 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9103 DH private keys and/or callback functions which directly correspond to
9104 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9105 is needed for applications which have to configure certificates on a
9106 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9108 For the RSA certificate situation is makes no difference, but
9109 for the DSA certificate situation this fixes the "no shared cipher"
9110 problem where the OpenSSL cipher selection procedure failed because the
9111 temporary keys were not overtaken from the context and the API provided
9112 no way to reconfigure them.
9113 The new functions now let applications reconfigure the stuff and they
9114 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9115 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9116 non-public-API function ssl_cert_instantiate() is used as a helper
9117 function and also to reduce code redundancy inside ssl_rsa.c.
9118 [Ralf S. Engelschall]
9120 *) Move s_server -dcert and -dkey options out of the undocumented feature
9121 area because they are useful for the DSA situation and should be
9122 recognized by the users.
9123 [Ralf S. Engelschall]
9125 *) Fix the cipher decision scheme for export ciphers: the export bits are
9126 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9127 SSL_EXP_MASK. So, the original variable has to be used instead of the
9128 already masked variable.
9129 [Richard Levitte <levitte@stacken.kth.se>]
9131 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9132 [Richard Levitte <levitte@stacken.kth.se>]
9134 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9135 from `int' to `unsigned int' because it's a length and initialized by
9136 EVP_DigestFinal() which expects an `unsigned int *'.
9137 [Richard Levitte <levitte@stacken.kth.se>]
9139 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9140 script. Instead use the usual Shell->Perl transition trick.
9141 [Ralf S. Engelschall]
9143 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9144 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9145 -noout -modulus' as it's already the case for `openssl rsa -noout
9146 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9147 currently the public key is printed (a decision which was already done by
9148 `openssl dsa -modulus' in the past) which serves a similar purpose.
9149 Additionally the NO_RSA no longer completely removes the whole -modulus
9150 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9152 [Ralf S. Engelschall]
9154 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9155 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9156 [Arne Ansper <arne@ats.cyber.ee>]
9158 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9159 to be added. Now both 'req' and 'ca' can use new objects defined in the
9163 *) Add cool BIO that does syslog (or event log on NT).
9164 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9166 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9167 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9168 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9169 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9172 *) Add preliminary config info for new extension code.
9175 *) Make RSA_NO_PADDING really use no padding.
9176 [Ulf Moeller <ulf@fitug.de>]
9178 *) Generate errors when private/public key check is done.
9181 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9182 for some CRL extensions and new objects added.
9185 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9186 key usage extension and fuller support for authority key id.
9189 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9190 padding method for RSA, which is recommended for new applications in PKCS
9191 #1 v2.0 (RFC 2437, October 1998).
9192 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9193 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9194 against Bleichbacher's attack on RSA.
9195 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9198 *) Updates to the new SSL compression code
9199 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9201 *) Fix so that the version number in the master secret, when passed
9202 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9203 (because the server will not accept higher), that the version number
9204 is 0x03,0x01, not 0x03,0x00
9205 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9207 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9208 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9209 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9212 *) Support for RAW extensions where an arbitrary extension can be
9213 created by including its DER encoding. See apps/openssl.cnf for
9217 *) Make sure latest Perl versions don't interpret some generated C array
9218 code as Perl array code in the crypto/err/err_genc.pl script.
9219 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9221 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9222 not many people have the assembler. Various Win32 compilation fixes and
9223 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9227 *) Modify configure script 'Configure' to automatically create crypto/date.h
9228 file under Win32 and also build pem.h from pem.org. New script
9229 util/mkfiles.pl to create the MINFO file on environments that can't do a
9230 'make files': perl util/mkfiles.pl >MINFO should work.
9233 *) Major rework of DES function declarations, in the pursuit of correctness
9234 and purity. As a result, many evil casts evaporated, and some weirdness,
9235 too. You may find this causes warnings in your code. Zapping your evil
9236 casts will probably fix them. Mostly.
9239 *) Fix for a typo in asn1.h. Bug fix to object creation script
9240 obj_dat.pl. It considered a zero in an object definition to mean
9241 "end of object": none of the objects in objects.h have any zeros
9242 so it wasn't spotted.
9243 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9245 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9246 Masking (CBCM). In the absence of test vectors, the best I have been able
9247 to do is check that the decrypt undoes the encrypt, so far. Send me test
9248 vectors if you have them.
9251 *) Correct calculation of key length for export ciphers (too much space was
9252 allocated for null ciphers). This has not been tested!
9255 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9256 message is now correct (it understands "crypto" and "ssl" on its
9257 command line). There is also now an "update" option. This will update
9258 the util/ssleay.num and util/libeay.num files with any new functions.
9260 perl util/mkdef.pl crypto ssl update
9261 it will update them.
9264 *) Overhauled the Perl interface (perl/*):
9265 - ported BN stuff to OpenSSL's different BN library
9266 - made the perl/ source tree CVS-aware
9267 - renamed the package from SSLeay to OpenSSL (the files still contain
9268 their history because I've copied them in the repository)
9269 - removed obsolete files (the test scripts will be replaced
9270 by better Test::Harness variants in the future)
9271 [Ralf S. Engelschall]
9273 *) First cut for a very conservative source tree cleanup:
9274 1. merge various obsolete readme texts into doc/ssleay.txt
9275 where we collect the old documents and readme texts.
9276 2. remove the first part of files where I'm already sure that we no
9277 longer need them because of three reasons: either they are just temporary
9278 files which were left by Eric or they are preserved original files where
9279 I've verified that the diff is also available in the CVS via "cvs diff
9280 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9281 the crypto/md/ stuff).
9282 [Ralf S. Engelschall]
9284 *) More extension code. Incomplete support for subject and issuer alt
9285 name, issuer and authority key id. Change the i2v function parameters
9286 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9287 what that's for :-) Fix to ASN1 macro which messed up
9288 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9291 *) Preliminary support for ENUMERATED type. This is largely copied from the
9295 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9296 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9298 *) Make sure `make rehash' target really finds the `openssl' program.
9299 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9301 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9302 like to hear about it if this slows down other processors.
9305 *) Add CygWin32 platform information to Configure script.
9306 [Alan Batie <batie@aahz.jf.intel.com>]
9308 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9309 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9311 *) New program nseq to manipulate netscape certificate sequences
9314 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9318 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9319 but the BN code had some problems that would cause failures when
9320 doing certificate verification and some other functions.
9321 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9323 *) Add ASN1 and PEM code to support netscape certificate sequences.
9326 *) Add ASN1 and PEM code to support netscape certificate sequences.
9329 *) Add several PKIX and private extended key usage OIDs.
9332 *) Modify the 'ca' program to handle the new extension code. Modify
9333 openssl.cnf for new extension format, add comments.
9336 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9337 and add a sample to openssl.cnf so req -x509 now adds appropriate
9341 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9342 error code, add initial support to X509_print() and x509 application.
9345 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9346 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9347 stuff is currently isolated and isn't even compiled yet.
9350 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9351 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9352 Removed the versions check from X509 routines when loading extensions:
9353 this allows certain broken certificates that don't set the version
9354 properly to be processed.
9357 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9358 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9359 can still be regenerated with "make depend".
9362 *) Spelling mistake in C version of CAST-128.
9363 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9365 *) Changes to the error generation code. The perl script err-code.pl
9366 now reads in the old error codes and retains the old numbers, only
9367 adding new ones if necessary. It also only changes the .err files if new
9368 codes are added. The makefiles have been modified to only insert errors
9369 when needed (to avoid needlessly modifying header files). This is done
9370 by only inserting errors if the .err file is newer than the auto generated
9371 C file. To rebuild all the error codes from scratch (the old behaviour)
9372 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9373 or delete all the .err files.
9376 *) CAST-128 was incorrectly implemented for short keys. The C version has
9377 been fixed, but is untested. The assembler versions are also fixed, but
9378 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9379 to regenerate it if needed.
9380 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9381 Hagino <itojun@kame.net>]
9383 *) File was opened incorrectly in randfile.c.
9384 [Ulf Möller <ulf@fitug.de>]
9386 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9387 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9388 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9389 al: it's just almost always a UTCTime. Note this patch adds new error
9390 codes so do a "make errors" if there are problems.
9393 *) Correct Linux 1 recognition in config.
9394 [Ulf Möller <ulf@fitug.de>]
9396 *) Remove pointless MD5 hash when using DSA keys in ca.
9397 [Anonymous <nobody@replay.com>]
9399 *) Generate an error if given an empty string as a cert directory. Also
9400 generate an error if handed NULL (previously returned 0 to indicate an
9401 error, but didn't set one).
9402 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9404 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9407 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9408 parameters. This was causing a warning which killed off the Win32 compile.
9411 *) Remove C++ style comments from crypto/bn/bn_local.h.
9412 [Neil Costigan <neil.costigan@celocom.com>]
9414 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9415 based on a text string, looking up short and long names and finally
9416 "dot" format. The "dot" format stuff didn't work. Added new function
9417 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9418 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9419 OID is not part of the table.
9422 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9423 X509_LOOKUP_by_alias().
9426 *) Sort openssl functions by name.
9429 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9430 encryption from sample DSA keys (in case anyone is interested the password
9434 *) Make _all_ *_free functions accept a NULL pointer.
9435 [Frans Heymans <fheymans@isaserver.be>]
9437 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9439 [Anonymous <nobody@replay.com>]
9441 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9442 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9444 *) Don't blow it for numeric -newkey arguments to apps/req.
9445 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9447 *) Temp key "for export" tests were wrong in s3_srvr.c.
9448 [Anonymous <nobody@replay.com>]
9450 *) Add prototype for temp key callback functions
9451 SSL_CTX_set_tmp_{rsa,dh}_callback().
9454 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9455 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9458 *) X509_name_add_entry() freed the wrong thing after an error.
9459 [Arne Ansper <arne@ats.cyber.ee>]
9461 *) rsa_eay.c would attempt to free a NULL context.
9462 [Arne Ansper <arne@ats.cyber.ee>]
9464 *) BIO_s_socket() had a broken should_retry() on Windoze.
9465 [Arne Ansper <arne@ats.cyber.ee>]
9467 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9468 [Arne Ansper <arne@ats.cyber.ee>]
9470 *) Make sure the already existing X509_STORE->depth variable is initialized
9471 in X509_STORE_new(), but document the fact that this variable is still
9472 unused in the certificate verification process.
9473 [Ralf S. Engelschall]
9475 *) Fix the various library and apps files to free up pkeys obtained from
9476 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9479 *) Fix reference counting in X509_PUBKEY_get(). This makes
9480 demos/maurice/example2.c work, amongst others, probably.
9481 [Steve Henson and Ben Laurie]
9483 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9484 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9485 are no longer created. This way we have a single and consistent command
9486 line interface `openssl <command>', similar to `cvs <command>'.
9487 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9489 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9490 BIT STRING wrapper always have zero unused bits.
9493 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9496 *) Make the top-level INSTALL documentation easier to understand.
9499 *) Makefiles updated to exit if an error occurs in a sub-directory
9500 make (including if user presses ^C) [Paul Sutton]
9502 *) Make Montgomery context stuff explicit in RSA data structure.
9505 *) Fix build order of pem and err to allow for generated pem.h.
9508 *) Fix renumbering bug in X509_NAME_delete_entry().
9511 *) Enhanced the err-ins.pl script so it makes the error library number
9512 global and can add a library name. This is needed for external ASN1 and
9513 other error libraries.
9516 *) Fixed sk_insert which never worked properly.
9519 *) Fix ASN1 macros so they can handle indefinite length construted
9520 EXPLICIT tags. Some non standard certificates use these: they can now
9524 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9525 into a single doc/ssleay.txt bundle. This way the information is still
9526 preserved but no longer messes up this directory. Now it's new room for
9527 the new set of documenation files.
9528 [Ralf S. Engelschall]
9530 *) SETs were incorrectly DER encoded. This was a major pain, because they
9531 shared code with SEQUENCEs, which aren't coded the same. This means that
9532 almost everything to do with SETs or SEQUENCEs has either changed name or
9533 number of arguments.
9534 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9536 *) Fix test data to work with the above.
9539 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9540 was already fixed by Eric for 0.9.1 it seems.
9541 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9543 *) Autodetect FreeBSD3.
9546 *) Fix various bugs in Configure. This affects the following platforms:
9550 unixware-2.0-pentium
9554 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9555 before they are needed.
9558 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9562 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9564 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9565 changed SSLeay to OpenSSL in version strings.
9566 [Ralf S. Engelschall]
9568 *) Some fixups to the top-level documents.
9571 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9572 because the symlink to include/ was missing.
9573 [Ralf S. Engelschall]
9575 *) Incorporated the popular no-RSA/DSA-only patches
9576 which allow to compile a RSA-free SSLeay.
9577 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9579 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9580 when "ssleay" is still not found.
9581 [Ralf S. Engelschall]
9583 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9584 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9586 *) Updated the README file.
9587 [Ralf S. Engelschall]
9589 *) Added various .cvsignore files in the CVS repository subdirs
9590 to make a "cvs update" really silent.
9591 [Ralf S. Engelschall]
9593 *) Recompiled the error-definition header files and added
9594 missing symbols to the Win32 linker tables.
9595 [Ralf S. Engelschall]
9597 *) Cleaned up the top-level documents;
9598 o new files: CHANGES and LICENSE
9599 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9600 o merged COPYRIGHT into LICENSE
9601 o removed obsolete TODO file
9602 o renamed MICROSOFT to INSTALL.W32
9603 [Ralf S. Engelschall]
9605 *) Removed dummy files from the 0.9.1b source tree:
9606 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9607 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9608 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9609 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9610 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9611 [Ralf S. Engelschall]
9613 *) Added various platform portability fixes.
9616 *) The Genesis of the OpenSSL rpject:
9617 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9618 Young and Tim J. Hudson created while they were working for C2Net until
9620 [The OpenSSL Project]
9623 Changes between 0.9.0b and 0.9.1b [not released]
9625 *) Updated a few CA certificates under certs/
9628 *) Changed some BIGNUM api stuff.
9631 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9632 DGUX x86, Linux Alpha, etc.
9635 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9636 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9640 *) Add -strparse option to asn1pars program which parses nested
9642 [Dr Stephen Henson <shenson@bigfoot.com>]
9644 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9647 *) DSA fix for "ca" program.
9650 *) Added "-genkey" option to "dsaparam" program.
9653 *) Added RIPE MD160 (rmd160) message digest.
9656 *) Added -a (all) option to "ssleay version" command.
9659 *) Added PLATFORM define which is the id given to Configure.
9662 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9665 *) Extended the ASN.1 parser routines.
9668 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9671 *) Added a BN_CTX to the BN library.
9674 *) Fixed the weak key values in DES library
9677 *) Changed API in EVP library for cipher aliases.
9680 *) Added support for RC2/64bit cipher.
9683 *) Converted the lhash library to the crypto/mem.c functions.
9686 *) Added more recognized ASN.1 object ids.
9689 *) Added more RSA padding checks for SSL/TLS.
9692 *) Added BIO proxy/filter functionality.
9695 *) Added extra_certs to SSL_CTX which can be used
9696 send extra CA certificates to the client in the CA cert chain sending
9697 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9700 *) Now Fortezza is denied in the authentication phase because
9701 this is key exchange mechanism is not supported by SSLeay at all.
9704 *) Additional PKCS1 checks.
9707 *) Support the string "TLSv1" for all TLS v1 ciphers.
9710 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9711 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9714 *) Fixed a few memory leaks.
9717 *) Fixed various code and comment typos.
9720 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9721 bytes sent in the client random.
9722 [Edward Bishop <ebishop@spyglass.com>]
projects / oweals / openssl.git / blob