5 Changes between 0.9.8k and 1.0 [xx XXX xxxx]
7 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
8 indicate the initial BIO being pushed or popped. This makes it possible
9 to determine whether the BIO is the one explicitly called or as a result
10 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
11 it handles reference counts correctly and doesn't zero out the I/O bio
12 when it is not being explicitly popped. WARNING: applications which
13 included workarounds for the old buggy behaviour will need to be modified
14 or they could free up already freed BIOs.
17 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
18 OPENSSL_asc2uni the original names were too generic and cause name
20 [Guenter <lists@gknw.net>]
22 *) Add ECDHE and PSK support to DTLS.
23 [Michael Tuexen <tuexen@fh-muenster.de>]
25 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
29 *) Add "missing" function EVP_MD_flags() (without this the only way to
30 retrieve a digest flags is by accessing the structure directly. Update
31 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
32 or cipher is registered as in the "from" argument. Print out all
33 registered digests in the dgst usage message instead of manually
34 attempting to work them out.
37 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
38 this allows the use of compression and extensions. Change default cipher
39 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
40 by default unless an application cipher string requests it.
43 *) Alter match criteria in PKCS12_parse(). It used to try to use local
44 key ids to find matching certificates and keys but some PKCS#12 files
45 don't follow the (somewhat unwritten) rules and this strategy fails.
46 Now just gather all certificates together and the first private key
47 then look for the first certificate that matches the key.
50 *) Support use of registered digest and cipher names for dgst and cipher
51 commands instead of having to add each one as a special case. So now
58 openssl dgst -sha256 foo
60 and this works for ENGINE based algorithms too.
64 *) Update Gost ENGINE to support parameter files.
65 [Victor B. Wagner <vitus@cryptocom.ru>]
67 *) Support GeneralizedTime in ca utility.
68 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
70 *) Enhance the hash format used for certificate directory links. The new
71 form uses the canonical encoding (meaning equivalent names will work
72 even if they aren't identical) and uses SHA1 instead of MD5. This form
73 is incompatible with the older format and as a result c_rehash should
74 be used to rebuild symbolic links.
77 *) Make PKCS#8 the default write format for private keys, replacing the
78 traditional format. This form is standardised, more secure and doesn't
79 include an implicit MD5 dependency.
82 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
83 committed to OpenSSL should pass this lot as a minimum.
86 *) Add session ticket override functionality for use by EAP-FAST.
87 [Jouni Malinen <j@w1.fi>]
89 *) Modify HMAC functions to return a value. Since these can be implemented
90 in an ENGINE errors can occur.
93 *) Type-checked OBJ_bsearch_ex.
96 *) Type-checked OBJ_bsearch. Also some constification necessitated
97 by type-checking. Still to come: TXT_DB, bsearch(?),
98 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
102 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
103 seconds to a tm structure directly, instead of going through OS
104 specific date routines. This avoids any issues with OS routines such
105 as the year 2038 bug. New *_adj() functions for ASN1 time structures
106 and X509_time_adj_ex() to cover the extended range. The existing
107 X509_time_adj() is still usable and will no longer have any date issues.
110 *) Delta CRL support. New use deltas option which will attempt to locate
111 and search any appropriate delta CRLs available.
113 This work was sponsored by Google.
116 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
117 code and add additional score elements. Validate alternate CRL paths
118 as part of the CRL checking and indicate a new error "CRL path validation
119 error" in this case. Applications wanting additional details can use
120 the verify callback and check the new "parent" field. If this is not
121 NULL CRL path validation is taking place. Existing applications wont
122 see this because it requires extended CRL support which is off by
125 This work was sponsored by Google.
128 *) Support for freshest CRL extension.
130 This work was sponsored by Google.
133 *) Initial indirect CRL support. Currently only supported in the CRLs
134 passed directly and not via lookup. Process certificate issuer
135 CRL entry extension and lookup CRL entries by bother issuer name
136 and serial number. Check and process CRL issuer entry in IDP extension.
138 This work was sponsored by Google.
141 *) Add support for distinct certificate and CRL paths. The CRL issuer
142 certificate is validated separately in this case. Only enabled if
143 an extended CRL support flag is set: this flag will enable additional
144 CRL functionality in future.
146 This work was sponsored by Google.
149 *) Add support for policy mappings extension.
151 This work was sponsored by Google.
154 *) Fixes to pathlength constraint, self issued certificate handling,
155 policy processing to align with RFC3280 and PKITS tests.
157 This work was sponsored by Google.
160 *) Support for name constraints certificate extension. DN, email, DNS
161 and URI types are currently supported.
163 This work was sponsored by Google.
166 *) To cater for systems that provide a pointer-based thread ID rather
167 than numeric, deprecate the current numeric thread ID mechanism and
168 replace it with a structure and associated callback type. This
169 mechanism allows a numeric "hash" to be extracted from a thread ID in
170 either case, and on platforms where pointers are larger than 'long',
171 mixing is done to help ensure the numeric 'hash' is usable even if it
172 can't be guaranteed unique. The default mechanism is to use "&errno"
173 as a pointer-based thread ID to distinguish between threads.
175 Applications that want to provide their own thread IDs should now use
176 CRYPTO_THREADID_set_callback() to register a callback that will call
177 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
179 Note that ERR_remove_state() is now deprecated, because it is tied
180 to the assumption that thread IDs are numeric. ERR_remove_state(0)
181 to free the current thread's error state should be replaced by
182 ERR_remove_thread_state(NULL).
184 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
185 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
186 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
187 application was previously providing a numeric thread callback that
188 was inappropriate for distinguishing threads, then uniqueness might
189 have been obtained with &errno that happened immediately in the
190 intermediate development versions of OpenSSL; this is no longer the
191 case, the numeric thread callback will now override the automatic use
193 [Geoff Thorpe, with help from Bodo Moeller]
195 *) Initial support for different CRL issuing certificates. This covers a
196 simple case where the self issued certificates in the chain exist and
197 the real CRL issuer is higher in the existing chain.
199 This work was sponsored by Google.
202 *) Removed effectively defunct crypto/store from the build.
205 *) Revamp of STACK to provide stronger type-checking. Still to come:
206 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
207 ASN1_STRING, CONF_VALUE.
210 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
211 RAM on SSL connections. This option can save about 34k per idle SSL.
214 *) Revamp of LHASH to provide stronger type-checking. Still to come:
215 STACK, TXT_DB, bsearch, qsort.
218 *) Initial support for Cryptographic Message Syntax (aka CMS) based
219 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
220 support for data, signedData, compressedData, digestedData and
221 encryptedData, envelopedData types included. Scripts to check against
222 RFC4134 examples draft and interop and consistency checks of many
223 content types and variants.
226 *) Add options to enc utility to support use of zlib compression BIO.
229 *) Extend mk1mf to support importing of options and assembly language
230 files from Configure script, currently only included in VC-WIN32.
231 The assembly language rules can now optionally generate the source
232 files from the associated perl scripts.
235 *) Implement remaining functionality needed to support GOST ciphersuites.
236 Interop testing has been performed using CryptoPro implementations.
237 [Victor B. Wagner <vitus@cryptocom.ru>]
239 *) s390x assembler pack.
242 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
246 *) Implement Opaque PRF Input TLS extension as specified in
247 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
248 official specification yet and no extension type assignment by
249 IANA exists, this extension (for now) will have to be explicitly
250 enabled when building OpenSSL by providing the extension number
251 to use. For example, specify an option
253 -DTLSEXT_TYPE_opaque_prf_input=0x9527
255 to the "config" or "Configure" script to enable the extension,
256 assuming extension number 0x9527 (which is a completely arbitrary
257 and unofficial assignment based on the MD5 hash of the Internet
258 Draft). Note that by doing so, you potentially lose
259 interoperability with other TLS implementations since these might
260 be using the same extension number for other purposes.
262 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
263 opaque PRF input value to use in the handshake. This will create
264 an interal copy of the length-'len' string at 'src', and will
265 return non-zero for success.
267 To get more control and flexibility, provide a callback function
270 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
271 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
275 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
278 Callback function 'cb' will be called in handshakes, and is
279 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
280 Argument 'arg' is for application purposes (the value as given to
281 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
282 be provided to the callback function). The callback function
283 has to return non-zero to report success: usually 1 to use opaque
284 PRF input just if possible, or 2 to enforce use of the opaque PRF
285 input. In the latter case, the library will abort the handshake
286 if opaque PRF input is not successfully negotiated.
288 Arguments 'peerinput' and 'len' given to the callback function
289 will always be NULL and 0 in the case of a client. A server will
290 see the client's opaque PRF input through these variables if
291 available (NULL and 0 otherwise). Note that if the server
292 provides an opaque PRF input, the length must be the same as the
293 length of the client's opaque PRF input.
295 Note that the callback function will only be called when creating
296 a new session (session resumption can resume whatever was
297 previously negotiated), and will not be called in SSL 2.0
298 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
299 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
300 for applications that need to enforce opaque PRF input.
304 *) Update ssl code to support digests other than SHA1+MD5 for handshake
307 [Victor B. Wagner <vitus@cryptocom.ru>]
309 *) Add RFC4507 support to OpenSSL. This includes the corrections in
310 RFC4507bis. The encrypted ticket format is an encrypted encoded
311 SSL_SESSION structure, that way new session features are automatically
314 If a client application caches session in an SSL_SESSION structure
315 support is transparent because tickets are now stored in the encoded
318 The SSL_CTX structure automatically generates keys for ticket
319 protection in servers so again support should be possible
320 with no application modification.
322 If a client or server wishes to disable RFC4507 support then the option
323 SSL_OP_NO_TICKET can be set.
325 Add a TLS extension debugging callback to allow the contents of any client
326 or server extensions to be examined.
328 This work was sponsored by Google.
331 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
332 OpenSSL should now compile cleanly on gcc 4.2
333 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
335 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
336 support including streaming MAC support: this is required for GOST
338 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
340 *) Add option -stream to use PKCS#7 streaming in smime utility. New
341 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
342 to output in BER and PEM format.
345 *) Experimental support for use of HMAC via EVP_PKEY interface. This
346 allows HMAC to be handled via the EVP_DigestSign*() interface. The
347 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
348 ENGINE support for HMAC keys which are unextractable. New -mac and
349 -macopt options to dgst utility.
352 *) New option -sigopt to dgst utility. Update dgst to use
353 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
354 alternative signing paramaters such as X9.31 or PSS in the dgst
358 *) Change ssl_cipher_apply_rule(), the internal function that does
359 the work each time a ciphersuite string requests enabling
360 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
361 removing ("!foo+bar") a class of ciphersuites: Now it maintains
362 the order of disabled ciphersuites such that those ciphersuites
363 that most recently went from enabled to disabled not only stay
364 in order with respect to each other, but also have higher priority
365 than other disabled ciphersuites the next time ciphersuites are
368 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
369 the same ciphersuites as with "HIGH" alone, but in a specific
370 order where the PSK ciphersuites come first (since they are the
371 most recently disabled ciphersuites when "HIGH" is parsed).
373 Also, change ssl_create_cipher_list() (using this new
374 funcionality) such that between otherwise identical
375 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
379 *) Change ssl_create_cipher_list() so that it automatically
380 arranges the ciphersuites in reasonable order before starting
381 to process the rule string. Thus, the definition for "DEFAULT"
382 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
383 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
384 This makes it much easier to arrive at a reasonable default order
385 in applications for which anonymous ciphers are OK (meaning
386 that you can't actually use DEFAULT).
387 [Bodo Moeller; suggested by Victor Duchovni]
389 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
390 processing) into multiple integers instead of setting
391 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
392 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
393 (These masks as well as the individual bit definitions are hidden
394 away into the non-exported interface ssl/ssl_locl.h, so this
395 change to the definition of the SSL_CIPHER structure shouldn't
396 affect applications.) This give us more bits for each of these
397 categories, so there is no longer a need to coagulate AES128 and
398 AES256 into a single algorithm bit, and to coagulate Camellia128
399 and Camellia256 into a single algorithm bit, which has led to all
402 Thus, among other things, the kludge introduced in 0.9.7m and
403 0.9.8e for masking out AES256 independently of AES128 or masking
404 out Camellia256 independently of AES256 is not needed here in 0.9.9.
406 With the change, we also introduce new ciphersuite aliases that
407 so far were missing: "AES128", "AES256", "CAMELLIA128", and
411 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
412 Use the leftmost N bytes of the signature input if the input is
413 larger than the prime q (with N being the size in bytes of q).
416 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
417 it yet and it is largely untested.
420 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
423 *) Initial incomplete changes to avoid need for function casts in OpenSSL
424 some compilers (gcc 4.2 and later) reject their use. Safestack is
425 reimplemented. Update ASN1 to avoid use of legacy functions.
428 *) Win32/64 targets are linked with Winsock2.
431 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
432 to external functions. This can be used to increase CRL handling
433 efficiency especially when CRLs are very large by (for example) storing
434 the CRL revoked certificates in a database.
437 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
438 new CRLs added to a directory can be used. New command line option
439 -verify_return_error to s_client and s_server. This causes real errors
440 to be returned by the verify callback instead of carrying on no matter
441 what. This reflects the way a "real world" verify callback would behave.
444 *) GOST engine, supporting several GOST algorithms and public key formats.
445 Kindly donated by Cryptocom.
448 *) Partial support for Issuing Distribution Point CRL extension. CRLs
449 partitioned by DP are handled but no indirect CRL or reason partitioning
450 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
451 selected via a scoring technique which handles IDP and AKID in CRLs.
454 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
455 will ultimately be used for all verify operations: this will remove the
456 X509_STORE dependency on certificate verification and allow alternative
457 lookup methods. X509_STORE based implementations of these two callbacks.
460 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
461 Modify get_crl() to find a valid (unexpired) CRL if possible.
464 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
465 this would be called X509_CRL_cmp() but that name is already used by
466 a function that just compares CRL issuer names. Cache several CRL
467 extensions in X509_CRL structure and cache CRLDP in X509.
470 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
471 this maps equivalent X509_NAME structures into a consistent structure.
472 Name comparison can then be performed rapidly using memcmp().
475 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
479 *) Allow digests to supply their own micalg string for S/MIME type using
480 the ctrl EVP_MD_CTRL_MICALG.
483 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
484 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
485 ctrl. It can then customise the structure before and/or after signing
489 *) New function OBJ_add_sigid() to allow application defined signature OIDs
490 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
491 to free up any added signature OIDs.
494 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
495 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
496 digest and cipher tables. New options added to openssl utility:
497 list-message-digest-algorithms and list-cipher-algorithms.
500 *) Change the array representation of binary polynomials: the list
501 of degrees of non-zero coefficients is now terminated with -1.
502 Previously it was terminated with 0, which was also part of the
503 value; thus, the array representation was not applicable to
504 polynomials where t^0 has coefficient zero. This change makes
505 the array representation useful in a more general context.
508 *) Various modifications and fixes to SSL/TLS cipher string
509 handling. For ECC, the code now distinguishes between fixed ECDH
510 with RSA certificates on the one hand and with ECDSA certificates
511 on the other hand, since these are separate ciphersuites. The
512 unused code for Fortezza ciphersuites has been removed.
514 For consistency with EDH, ephemeral ECDH is now called "EECDH"
515 (not "ECDHE"). For consistency with the code for DH
516 certificates, use of ECDH certificates is now considered ECDH
517 authentication, not RSA or ECDSA authentication (the latter is
518 merely the CA's signing algorithm and not actively used in the
521 The temporary ciphersuite alias "ECCdraft" is no longer
522 available, and ECC ciphersuites are no longer excluded from "ALL"
523 and "DEFAULT". The following aliases now exist for RFC 4492
524 ciphersuites, most of these by analogy with the DH case:
526 kECDHr - ECDH cert, signed with RSA
527 kECDHe - ECDH cert, signed with ECDSA
528 kECDH - ECDH cert (signed with either RSA or ECDSA)
529 kEECDH - ephemeral ECDH
530 ECDH - ECDH cert or ephemeral ECDH
536 AECDH - anonymous ECDH
537 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
541 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
542 Use correct micalg parameters depending on digest(s) in signed message.
545 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
546 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
549 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
550 an engine to register a method. Add ENGINE lookups for methods and
551 functional reference processing.
554 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
555 EVP_{Sign,Verify}* which allow an application to customise the signature
559 *) New -resign option to smime utility. This adds one or more signers
560 to an existing PKCS#7 signedData structure. Also -md option to use an
561 alternative message digest algorithm for signing.
564 *) Tidy up PKCS#7 routines and add new functions to make it easier to
565 create PKCS7 structures containing multiple signers. Update smime
566 application to support multiple signers.
569 *) New -macalg option to pkcs12 utility to allow setting of an alternative
573 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
574 Reorganize PBE internals to lookup from a static table using NIDs,
575 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
576 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
577 PRF which will be automatically used with PBES2.
580 *) Replace the algorithm specific calls to generate keys in "req" with the
584 *) Update PKCS#7 enveloped data routines to use new API. This is now
585 supported by any public key method supporting the encrypt operation. A
586 ctrl is added to allow the public key algorithm to examine or modify
587 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
591 *) Add a ctrl to asn1 method to allow a public key algorithm to express
592 a default digest type to use. In most cases this will be SHA1 but some
593 algorithms (such as GOST) need to specify an alternative digest. The
594 return value indicates how strong the prefernce is 1 means optional and
595 2 is mandatory (that is it is the only supported type). Modify
596 ASN1_item_sign() to accept a NULL digest argument to indicate it should
597 use the default md. Update openssl utilities to use the default digest
598 type for signing if it is not explicitly indicated.
601 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
602 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
603 signing method from the key type. This effectively removes the link
604 between digests and public key types.
607 *) Add an OID cross reference table and utility functions. Its purpose is to
608 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
609 rsaEncryption. This will allow some of the algorithm specific hackery
610 needed to use the correct OID to be removed.
613 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
614 structures for PKCS7_sign(). They are now set up by the relevant public
618 *) Add provisional EC pkey method with support for ECDSA and ECDH.
621 *) Add support for key derivation (agreement) in the API, DH method and
625 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
626 public and private key formats. As a side effect these add additional
627 command line functionality not previously available: DSA signatures can be
628 generated and verified using pkeyutl and DH key support and generation in
633 [Oliver Tappe <zooey@hirschkaefer.de>]
635 *) New make target "install_html_docs" installs HTML renditions of the
637 [Oliver Tappe <zooey@hirschkaefer.de>]
639 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
640 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
641 support key and parameter generation and add initial key generation
642 functionality for RSA.
645 *) Add functions for main EVP_PKEY_method operations. The undocumented
646 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
647 EVP_PKEY_{encrypt,decrypt}_old.
650 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
651 key API, doesn't do much yet.
654 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
655 public key algorithms. New option to openssl utility:
656 "list-public-key-algorithms" to print out info.
659 *) Implement the Supported Elliptic Curves Extension for
660 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
663 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
664 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
667 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
668 utilities such as rsa, dsa, dsaparam etc except they process any key
672 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
673 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
674 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
678 *) Initial support for pluggable public key ASN1.
679 De-spaghettify the public key ASN1 handling. Move public and private
680 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
681 algorithm specific handling to a single module within the relevant
682 algorithm directory. Add functions to allow (near) opaque processing
683 of public and private key structures.
686 *) Implement the Supported Point Formats Extension for
687 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
690 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
691 for the psk identity [hint] and the psk callback functions to the
692 SSL_SESSION, SSL and SSL_CTX structure.
695 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
699 SSL_CTX_use_psk_identity_hint
700 SSL_get_psk_identity_hint
702 SSL_use_psk_identity_hint
704 [Mika Kousa and Pasi Eronen of Nokia Corporation]
706 *) Add RFC 3161 compliant time stamp request creation, response generation
707 and response verification functionality.
708 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
710 *) Add initial support for TLS extensions, specifically for the server_name
711 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
712 have new members for a host name. The SSL data structure has an
713 additional member SSL_CTX *initial_ctx so that new sessions can be
714 stored in that context to allow for session resumption, even after the
715 SSL has been switched to a new SSL_CTX in reaction to a client's
716 server_name extension.
718 New functions (subject to change):
721 SSL_get_servername_type()
724 New CTRL codes and macros (subject to change):
726 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
727 - SSL_CTX_set_tlsext_servername_callback()
728 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
729 - SSL_CTX_set_tlsext_servername_arg()
730 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
732 openssl s_client has a new '-servername ...' option.
734 openssl s_server has new options '-servername_host ...', '-cert2 ...',
735 '-key2 ...', '-servername_fatal' (subject to change). This allows
736 testing the HostName extension for a specific single host name ('-cert'
737 and '-key' remain fallbacks for handshakes without HostName
738 negotiation). If the unrecogninzed_name alert has to be sent, this by
739 default is a warning; it becomes fatal with the '-servername_fatal'
742 [Peter Sylvester, Remy Allais, Christophe Renou]
744 *) Whirlpool hash implementation is added.
747 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
748 bn(64,32). Because of instruction set limitations it doesn't have
749 any negative impact on performance. This was done mostly in order
750 to make it possible to share assembler modules, such as bn_mul_mont
751 implementations, between 32- and 64-bit builds without hassle.
754 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
755 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
759 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
760 dedicated Montgomery multiplication procedure, is introduced.
761 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
762 "64-bit" performance on certain 32-bit targets.
765 *) New option SSL_OP_NO_COMP to disable use of compression selectively
766 in SSL structures. New SSL ctrl to set maximum send fragment size.
767 Save memory by seeting the I/O buffer sizes dynamically instead of
768 using the maximum available value.
771 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
772 in addition to the text details.
775 *) Very, very preliminary EXPERIMENTAL support for printing of general
776 ASN1 structures. This currently produces rather ugly output and doesn't
777 handle several customised structures at all.
780 *) Integrated support for PVK file format and some related formats such
781 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
782 these in the 'rsa' and 'dsa' utilities.
785 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
788 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
789 place for the (very old) "NETSCAPE" format certificates which are now
790 handled using new ASN1 code equivalents.
793 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
794 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
795 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
798 *) Modify CRL distribution points extension code to print out previously
799 unsupported fields. Enhance extension setting code to allow setting of
803 *) Add print and set support for Issuing Distribution Point CRL extension.
806 *) Change 'Configure' script to enable Camellia by default.
809 Changes between 0.9.8k and 0.9.8l [xx XXX xxxx]
811 *) Don't check self signed certificate signatures in X509_verify_cert()
812 by default (a flag can override this): it just wastes time without
813 adding any security. As a useful side effect self signed root CAs
814 with non-FIPS digests are now usable in FIPS mode.
817 *) In dtls1_process_out_of_seq_message() the check if the current message
818 is already buffered was missing. For every new message was memory
819 allocated, allowing an attacker to perform an denial of service attack
820 with sending out of seq handshake messages until there is no memory
821 left. Additionally every future messege was buffered, even if the
822 sequence number made no sense and would be part of another handshake.
823 So only messages with sequence numbers less than 10 in advance will be
825 [Robin Seggelmann, discovered by Daniel Mentz]
827 *) Records are buffered if they arrive with a future epoch to be
828 processed after finishing the corresponding handshake. There is
829 currently no limitation to this buffer allowing an attacker to perform
830 a DOS attack with sending records with future epochs until there is no
831 memory left. This patch adds the pqueue_size() function to detemine
832 the size of a buffer and limits the record buffer to 100 entries.
833 [Robin Seggelmann, discovered by Daniel Mentz]
835 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
836 parent structure is freed.
839 *) Handle non-blocking I/O properly in SSL_shutdown() call.
840 [Darryl Miles <darryl-mailinglists@netbauds.net>]
843 [Ilya O. <vrghost@gmail.com>]
845 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
847 *) Don't set val to NULL when freeing up structures, it is freed up by
848 underlying code. If sizeof(void *) > sizeof(long) this can result in
849 zeroing past the valid field. (CVE-2009-0789)
850 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
852 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
853 checked correctly. This would allow some invalid signed attributes to
854 appear to verify correctly. (CVE-2009-0591)
855 [Ivan Nestlerode <inestlerode@us.ibm.com>]
857 *) Reject UniversalString and BMPString types with invalid lengths. This
858 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
859 a legal length. (CVE-2009-0590)
862 *) Set S/MIME signing as the default purpose rather than setting it
863 unconditionally. This allows applications to override it at the store
867 *) Permit restricted recursion of ASN1 strings. This is needed in practice
868 to handle some structures.
871 *) Improve efficiency of mem_gets: don't search whole buffer each time
873 [Jeremy Shapiro <jnshapir@us.ibm.com>]
875 *) New -hex option for openssl rand.
878 *) Print out UTF8String and NumericString when parsing ASN1.
881 *) Support NumericString type for name components.
884 *) Allow CC in the environment to override the automatically chosen
885 compiler. Note that nothing is done to ensure flags work with the
889 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
891 *) Properly check EVP_VerifyFinal() and similar return values
893 [Ben Laurie, Bodo Moeller, Google Security Team]
895 *) Enable TLS extensions by default.
898 *) Allow the CHIL engine to be loaded, whether the application is
899 multithreaded or not. (This does not release the developer from the
900 obligation to set up the dynamic locking callbacks.)
901 [Sander Temme <sander@temme.net>]
903 *) Use correct exit code if there is an error in dgst command.
904 [Steve Henson; problem pointed out by Roland Dirlewanger]
906 *) Tweak Configure so that you need to say "experimental-jpake" to enable
907 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
910 *) Add experimental JPAKE support, including demo authentication in
911 s_client and s_server.
914 *) Set the comparison function in v3_addr_canonize().
915 [Rob Austein <sra@hactrn.net>]
917 *) Add support for XMPP STARTTLS in s_client.
918 [Philip Paeps <philip@freebsd.org>]
920 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
921 to ensure that even with this option, only ciphersuites in the
922 server's preference list will be accepted. (Note that the option
923 applies only when resuming a session, so the earlier behavior was
924 just about the algorithm choice for symmetric cryptography.)
927 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
929 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
930 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
933 *) The fix in 0.9.8c that supposedly got rid of unsafe
934 double-checked locking was incomplete for RSA blinding,
935 addressing just one layer of what turns out to have been
936 doubly unsafe triple-checked locking.
938 So now fix this for real by retiring the MONT_HELPER macro
939 in crypto/rsa/rsa_eay.c.
941 [Bodo Moeller; problem pointed out by Marius Schilder]
943 *) Various precautionary measures:
945 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
947 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
948 (NB: This would require knowledge of the secret session ticket key
949 to exploit, in which case you'd be SOL either way.)
951 - Change bn_nist.c so that it will properly handle input BIGNUMs
952 outside the expected range.
954 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
957 [Neel Mehta, Bodo Moeller]
959 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
960 the load fails. Useful for distros.
961 [Ben Laurie and the FreeBSD team]
963 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
966 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
969 *) Expand ENGINE to support engine supplied SSL client certificate functions.
971 This work was sponsored by Logica.
974 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
975 keystores. Support for SSL/TLS client authentication too.
976 Not compiled unless enable-capieng specified to Configure.
978 This work was sponsored by Logica.
981 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
982 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
983 attribute creation routines such as certifcate requests and PKCS#12
987 Changes between 0.9.8g and 0.9.8h [28 May 2008]
989 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
990 handshake which could lead to a cilent crash as found using the
991 Codenomicon TLS test suite (CVE-2008-1672)
992 [Steve Henson, Mark Cox]
994 *) Fix double free in TLS server name extensions which could lead to
995 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
998 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1000 Clear the error queue to ensure that error entries left from
1001 older function calls do not interfere with the correct operation.
1002 [Lutz Jaenicke, Erik de Castro Lopo]
1004 *) Remove root CA certificates of commercial CAs:
1006 The OpenSSL project does not recommend any specific CA and does not
1007 have any policy with respect to including or excluding any CA.
1008 Therefore it does not make any sense to ship an arbitrary selection
1009 of root CA certificates with the OpenSSL software.
1012 *) RSA OAEP patches to fix two separate invalid memory reads.
1013 The first one involves inputs when 'lzero' is greater than
1014 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1015 before the beginning of from). The second one involves inputs where
1016 the 'db' section contains nothing but zeroes (there is a one-byte
1017 invalid read after the end of 'db').
1018 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1020 *) Partial backport from 0.9.9-dev:
1022 Introduce bn_mul_mont (dedicated Montgomery multiplication
1023 procedure) as a candidate for BIGNUM assembler implementation.
1024 While 0.9.9-dev uses assembler for various architectures, only
1025 x86_64 is available by default here in the 0.9.8 branch, and
1026 32-bit x86 is available through a compile-time setting.
1028 To try the 32-bit x86 assembler implementation, use Configure
1029 option "enable-montasm" (which exists only for this backport).
1031 As "enable-montasm" for 32-bit x86 disclaims code stability
1032 anyway, in this constellation we activate additional code
1033 backported from 0.9.9-dev for further performance improvements,
1034 namely BN_from_montgomery_word. (To enable this otherwise,
1035 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1037 [Andy Polyakov (backport partially by Bodo Moeller)]
1039 *) Add TLS session ticket callback. This allows an application to set
1040 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1041 values. This is useful for key rollover for example where several key
1042 sets may exist with different names.
1045 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1046 This was broken until now in 0.9.8 releases, such that the only way
1047 a registered ENGINE could be used (assuming it initialises
1048 successfully on the host) was to explicitly set it as the default
1049 for the relevant algorithms. This is in contradiction with 0.9.7
1050 behaviour and the documentation. With this fix, when an ENGINE is
1051 registered into a given algorithm's table of implementations, the
1052 'uptodate' flag is reset so that auto-discovery will be used next
1053 time a new context for that algorithm attempts to select an
1055 [Ian Lister (tweaked by Geoff Thorpe)]
1057 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1058 implemention in the following ways:
1060 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1063 Lack of BER streaming support means one pass streaming processing is
1064 only supported if data is detached: setting the streaming flag is
1065 ignored for embedded content.
1067 CMS support is disabled by default and must be explicitly enabled
1068 with the enable-cms configuration option.
1071 *) Update the GMP engine glue to do direct copies between BIGNUM and
1072 mpz_t when openssl and GMP use the same limb size. Otherwise the
1073 existing "conversion via a text string export" trick is still used.
1074 [Paul Sheer <paulsheer@gmail.com>]
1076 *) Zlib compression BIO. This is a filter BIO which compressed and
1077 uncompresses any data passed through it.
1080 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1081 RFC3394 compatible AES key wrapping.
1084 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1085 sets string data without copying. X509_ALGOR_set0() and
1086 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1087 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1088 from an X509_ATTRIBUTE structure optionally checking it occurs only
1089 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1093 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1094 to get the expected BN_FLG_CONSTTIME behavior.
1095 [Bodo Moeller (Google)]
1099 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1100 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1101 - added some more tests to do_tests.pl
1102 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1103 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1104 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1105 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1106 - various changes to netware.pl to enable gcc-cross builds on Win32
1108 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1109 - various changes to fix missing prototype warnings
1110 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1111 - added AES, WHIRLPOOL and CPUID assembler code to build files
1112 - added missing AES assembler make rules to mk1mf.pl
1113 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1114 [Guenter Knauf <eflash@gmx.net>]
1116 *) Implement certificate status request TLS extension defined in RFC3546.
1117 A client can set the appropriate parameters and receive the encoded
1118 OCSP response via a callback. A server can query the supplied parameters
1119 and set the encoded OCSP response in the callback. Add simplified examples
1120 to s_client and s_server.
1123 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1125 *) Fix various bugs:
1126 + Binary incompatibility of ssl_ctx_st structure
1127 + DTLS interoperation with non-compliant servers
1128 + Don't call get_session_cb() without proposed session
1129 + Fix ia64 assembler code
1130 [Andy Polyakov, Steve Henson]
1132 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1134 *) DTLS Handshake overhaul. There were longstanding issues with
1135 OpenSSL DTLS implementation, which were making it impossible for
1136 RFC 4347 compliant client to communicate with OpenSSL server.
1137 Unfortunately just fixing these incompatibilities would "cut off"
1138 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1139 server keeps tolerating non RFC compliant syntax. The opposite is
1140 not true, 0.9.8f client can not communicate with earlier server.
1141 This update even addresses CVE-2007-4995.
1144 *) Changes to avoid need for function casts in OpenSSL: some compilers
1145 (gcc 4.2 and later) reject their use.
1146 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1149 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1150 RFC4507bis. The encrypted ticket format is an encrypted encoded
1151 SSL_SESSION structure, that way new session features are automatically
1154 If a client application caches session in an SSL_SESSION structure
1155 support is transparent because tickets are now stored in the encoded
1158 The SSL_CTX structure automatically generates keys for ticket
1159 protection in servers so again support should be possible
1160 with no application modification.
1162 If a client or server wishes to disable RFC4507 support then the option
1163 SSL_OP_NO_TICKET can be set.
1165 Add a TLS extension debugging callback to allow the contents of any client
1166 or server extensions to be examined.
1168 This work was sponsored by Google.
1171 *) Add initial support for TLS extensions, specifically for the server_name
1172 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1173 have new members for a host name. The SSL data structure has an
1174 additional member SSL_CTX *initial_ctx so that new sessions can be
1175 stored in that context to allow for session resumption, even after the
1176 SSL has been switched to a new SSL_CTX in reaction to a client's
1177 server_name extension.
1179 New functions (subject to change):
1181 SSL_get_servername()
1182 SSL_get_servername_type()
1185 New CTRL codes and macros (subject to change):
1187 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1188 - SSL_CTX_set_tlsext_servername_callback()
1189 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1190 - SSL_CTX_set_tlsext_servername_arg()
1191 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1193 openssl s_client has a new '-servername ...' option.
1195 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1196 '-key2 ...', '-servername_fatal' (subject to change). This allows
1197 testing the HostName extension for a specific single host name ('-cert'
1198 and '-key' remain fallbacks for handshakes without HostName
1199 negotiation). If the unrecogninzed_name alert has to be sent, this by
1200 default is a warning; it becomes fatal with the '-servername_fatal'
1203 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1205 *) Add AES and SSE2 assembly language support to VC++ build.
1208 *) Mitigate attack on final subtraction in Montgomery reduction.
1211 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1212 (which previously caused an internal error).
1215 *) Squeeze another 10% out of IGE mode when in != out.
1218 *) AES IGE mode speedup.
1219 [Dean Gaudet (Google)]
1221 *) Add the Korean symmetric 128-bit cipher SEED (see
1222 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1223 add SEED ciphersuites from RFC 4162:
1225 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1226 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1227 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1228 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1230 To minimize changes between patchlevels in the OpenSSL 0.9.8
1231 series, SEED remains excluded from compilation unless OpenSSL
1232 is configured with 'enable-seed'.
1233 [KISA, Bodo Moeller]
1235 *) Mitigate branch prediction attacks, which can be practical if a
1236 single processor is shared, allowing a spy process to extract
1237 information. For detailed background information, see
1238 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1239 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1240 and Necessary Software Countermeasures"). The core of the change
1241 are new versions BN_div_no_branch() and
1242 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1243 respectively, which are slower, but avoid the security-relevant
1244 conditional branches. These are automatically called by BN_div()
1245 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1246 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1247 remove a conditional branch.
1249 BN_FLG_CONSTTIME is the new name for the previous
1250 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1251 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1252 in the exponent causes BN_mod_exp_mont() to use the alternative
1253 implementation in BN_mod_exp_mont_consttime().) The old name
1254 remains as a deprecated alias.
1256 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1257 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1258 constant-time implementations for more than just exponentiation.
1259 Here too the old name is kept as a deprecated alias.
1261 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1262 the BN_BLINDING structure gets an independent copy of the
1263 modulus. This means that the previous "BIGNUM *m" argument to
1264 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1265 essentially becomes "const BIGNUM *m", although we can't actually
1266 change this in the header file before 0.9.9. It allows
1267 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1268 enable BN_FLG_CONSTTIME.
1270 [Matthew D Wood (Intel Corp)]
1272 *) In the SSL/TLS server implementation, be strict about session ID
1273 context matching (which matters if an application uses a single
1274 external cache for different purposes). Previously,
1275 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1276 set. This did ensure strict client verification, but meant that,
1277 with applications using a single external cache for quite
1278 different requirements, clients could circumvent ciphersuite
1279 restrictions for a given session ID context by starting a session
1280 in a different context.
1283 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1284 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1285 authentication-only ciphersuites.
1288 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1289 not complete and could lead to a possible single byte overflow
1290 (CVE-2007-5135) [Ben Laurie]
1292 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1294 *) Since AES128 and AES256 (and similarly Camellia128 and
1295 Camellia256) share a single mask bit in the logic of
1296 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1297 kludge to work properly if AES128 is available and AES256 isn't
1298 (or if Camellia128 is available and Camellia256 isn't).
1301 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1302 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1303 When a point or a seed is encoded in a BIT STRING, we need to
1304 prevent the removal of trailing zero bits to get the proper DER
1305 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1306 of a NamedBitList, for which trailing 0 bits need to be removed.)
1309 *) Have SSL/TLS server implementation tolerate "mismatched" record
1310 protocol version while receiving ClientHello even if the
1311 ClientHello is fragmented. (The server can't insist on the
1312 particular protocol version it has chosen before the ServerHello
1313 message has informed the client about his choice.)
1316 *) Add RFC 3779 support.
1317 [Rob Austein for ARIN, Ben Laurie]
1319 *) Load error codes if they are not already present instead of using a
1320 static variable. This allows them to be cleanly unloaded and reloaded.
1321 Improve header file function name parsing.
1324 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1325 or CAPABILITY handshake as required by RFCs.
1328 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1330 *) Introduce limits to prevent malicious keys being able to
1331 cause a denial of service. (CVE-2006-2940)
1332 [Steve Henson, Bodo Moeller]
1334 *) Fix ASN.1 parsing of certain invalid structures that can result
1335 in a denial of service. (CVE-2006-2937) [Steve Henson]
1337 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1338 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1340 *) Fix SSL client code which could crash if connecting to a
1341 malicious SSLv2 server. (CVE-2006-4343)
1342 [Tavis Ormandy and Will Drewry, Google Security Team]
1344 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1345 match only those. Before that, "AES256-SHA" would be interpreted
1346 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1347 the same strength classification in 0.9.7h) as we currently only
1348 have a single AES bit in the ciphersuite description bitmap.
1349 That change, however, also applied to ciphersuite strings such as
1350 "RC4-MD5" that intentionally matched multiple ciphersuites --
1351 namely, SSL 2.0 ciphersuites in addition to the more common ones
1352 from SSL 3.0/TLS 1.0.
1354 So we change the selection algorithm again: Naming an explicit
1355 ciphersuite selects this one ciphersuite, and any other similar
1356 ciphersuite (same bitmap) from *other* protocol versions.
1357 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1358 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1360 Since SSL 2.0 does not have any ciphersuites for which the
1361 128/256 bit distinction would be relevant, this works for now.
1362 The proper fix will be to use different bits for AES128 and
1363 AES256, which would have avoided the problems from the beginning;
1364 however, bits are scarce, so we can only do this in a new release
1365 (not just a patchlevel) when we can change the SSL_CIPHER
1366 definition to split the single 'unsigned long mask' bitmap into
1367 multiple values to extend the available space.
1371 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1373 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1374 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1376 *) Add AES IGE and biIGE modes.
1379 *) Change the Unix randomness entropy gathering to use poll() when
1380 possible instead of select(), since the latter has some
1381 undesirable limitations.
1382 [Darryl Miles via Richard Levitte and Bodo Moeller]
1384 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1385 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1386 cannot be implicitly activated as part of, e.g., the "AES" alias.
1387 However, please upgrade to OpenSSL 0.9.9[-dev] for
1388 non-experimental use of the ECC ciphersuites to get TLS extension
1389 support, which is required for curve and point format negotiation
1390 to avoid potential handshake problems.
1393 *) Disable rogue ciphersuites:
1395 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1396 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1397 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1399 The latter two were purportedly from
1400 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1403 Also deactivate the remaining ciphersuites from
1404 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1405 unofficial, and the ID has long expired.
1408 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1409 dual-core machines) and other potential thread-safety issues.
1412 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1413 versions), which is now available for royalty-free use
1414 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1415 Also, add Camellia TLS ciphersuites from RFC 4132.
1417 To minimize changes between patchlevels in the OpenSSL 0.9.8
1418 series, Camellia remains excluded from compilation unless OpenSSL
1419 is configured with 'enable-camellia'.
1422 *) Disable the padding bug check when compression is in use. The padding
1423 bug check assumes the first packet is of even length, this is not
1424 necessarily true if compresssion is enabled and can result in false
1425 positives causing handshake failure. The actual bug test is ancient
1426 code so it is hoped that implementations will either have fixed it by
1427 now or any which still have the bug do not support compression.
1430 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1432 *) When applying a cipher rule check to see if string match is an explicit
1433 cipher suite and only match that one cipher suite if it is.
1436 *) Link in manifests for VC++ if needed.
1437 [Austin Ziegler <halostatue@gmail.com>]
1439 *) Update support for ECC-based TLS ciphersuites according to
1440 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1441 TLS extensions, which are supported starting with the 0.9.9
1442 branch, not in the OpenSSL 0.9.8 branch).
1445 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1446 opaque EVP_CIPHER_CTX handling.
1449 *) Fixes and enhancements to zlib compression code. We now only use
1450 "zlib1.dll" and use the default __cdecl calling convention on Win32
1451 to conform with the standards mentioned here:
1452 http://www.zlib.net/DLL_FAQ.txt
1453 Static zlib linking now works on Windows and the new --with-zlib-include
1454 --with-zlib-lib options to Configure can be used to supply the location
1455 of the headers and library. Gracefully handle case where zlib library
1459 *) Several fixes and enhancements to the OID generation code. The old code
1460 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1461 handle numbers larger than ULONG_MAX, truncated printing and had a
1462 non standard OBJ_obj2txt() behaviour.
1465 *) Add support for building of engines under engine/ as shared libraries
1466 under VC++ build system.
1469 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1470 Hopefully, we will not see any false combination of paths any more.
1473 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1475 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1476 (part of SSL_OP_ALL). This option used to disable the
1477 countermeasure against man-in-the-middle protocol-version
1478 rollback in the SSL 2.0 server implementation, which is a bad
1479 idea. (CVE-2005-2969)
1481 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1482 for Information Security, National Institute of Advanced Industrial
1483 Science and Technology [AIST], Japan)]
1485 *) Add two function to clear and return the verify parameter flags.
1488 *) Keep cipherlists sorted in the source instead of sorting them at
1489 runtime, thus removing the need for a lock.
1492 *) Avoid some small subgroup attacks in Diffie-Hellman.
1493 [Nick Mathewson and Ben Laurie]
1495 *) Add functions for well-known primes.
1498 *) Extended Windows CE support.
1499 [Satoshi Nakamura and Andy Polyakov]
1501 *) Initialize SSL_METHOD structures at compile time instead of during
1502 runtime, thus removing the need for a lock.
1505 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1506 attempting to decrypt each encrypted key in turn. Add support to
1510 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1512 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1515 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1518 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1519 key into the same file any more.
1522 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1525 *) Add -utf8 command line and config file option to 'ca'.
1526 [Stefan <stf@udoma.org]
1528 *) Removed the macro des_crypt(), as it seems to conflict with some
1529 libraries. Use DES_crypt().
1532 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1533 involves renaming the source and generated shared-libs for
1534 both. The engines will accept the corrected or legacy ids
1535 ('ncipher' and '4758_cca' respectively) when binding. NB,
1536 this only applies when building 'shared'.
1537 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1539 *) Add attribute functions to EVP_PKEY structure. Modify
1540 PKCS12_create() to recognize a CSP name attribute and
1541 use it. Make -CSP option work again in pkcs12 utility.
1544 *) Add new functionality to the bn blinding code:
1545 - automatic re-creation of the BN_BLINDING parameters after
1546 a fixed number of uses (currently 32)
1547 - add new function for parameter creation
1548 - introduce flags to control the update behaviour of the
1549 BN_BLINDING parameters
1550 - hide BN_BLINDING structure
1551 Add a second BN_BLINDING slot to the RSA structure to improve
1552 performance when a single RSA object is shared among several
1556 *) Add support for DTLS.
1557 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1559 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1560 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1563 *) Remove buggy and incompletet DH cert support from
1564 ssl/ssl_rsa.c and ssl/s3_both.c
1567 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1568 the apps/openssl applications.
1571 *) Compile clean with "-Wall -Wmissing-prototypes
1572 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1573 DEBUG_SAFESTACK must also be set.
1576 *) Change ./Configure so that certain algorithms can be disabled by default.
1577 The new counterpiece to "no-xxx" is "enable-xxx".
1579 The patented RC5 and MDC2 algorithms will now be disabled unless
1580 "enable-rc5" and "enable-mdc2", respectively, are specified.
1582 (IDEA remains enabled despite being patented. This is because IDEA
1583 is frequently required for interoperability, and there is no license
1584 fee for non-commercial use. As before, "no-idea" can be used to
1585 avoid this algorithm.)
1589 *) Add processing of proxy certificates (see RFC 3820). This work was
1590 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1591 EGEE (Enabling Grids for E-science in Europe).
1594 *) RC4 performance overhaul on modern architectures/implementations, such
1595 as Intel P4, IA-64 and AMD64.
1598 *) New utility extract-section.pl. This can be used specify an alternative
1599 section number in a pod file instead of having to treat each file as
1600 a separate case in Makefile. This can be done by adding two lines to the
1603 =for comment openssl_section:XXX
1605 The blank line is mandatory.
1609 *) New arguments -certform, -keyform and -pass for s_client and s_server
1610 to allow alternative format key and certificate files and passphrase
1614 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1615 update associated structures and add various utility functions.
1617 Add new policy related verify parameters, include policy checking in
1618 standard verify code. Enhance 'smime' application with extra parameters
1619 to support policy checking and print out.
1622 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1623 Nehemiah processors. These extensions support AES encryption in hardware
1624 as well as RNG (though RNG support is currently disabled).
1625 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1627 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1630 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1631 [Andy Polyakov and a number of other people]
1633 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1634 implementation contributed by IBM.
1635 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1637 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1638 exponent rather than 'unsigned long'. There is a corresponding change to
1639 the new 'rsa_keygen' element of the RSA_METHOD structure.
1640 [Jelte Jansen, Geoff Thorpe]
1642 *) Functionality for creating the initial serial number file is now
1643 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1645 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1646 number file to 1, which is bound to cause problems. To avoid
1647 the problems while respecting compatibility between different 0.9.7
1648 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1649 CA.pl for serial number initialization. With the new release 0.9.8,
1650 we can fix the problem directly in the 'ca' utility.)
1653 *) Reduced header interdepencies by declaring more opaque objects in
1654 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1655 give fewer recursive includes, which could break lazy source code - so
1656 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1657 developers should define this symbol when building and using openssl to
1658 ensure they track the recommended behaviour, interfaces, [etc], but
1659 backwards-compatible behaviour prevails when this isn't defined.
1662 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1665 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1666 This will generate a random key of the appropriate length based on the
1667 cipher context. The EVP_CIPHER can provide its own random key generation
1668 routine to support keys of a specific form. This is used in the des and
1669 3des routines to generate a key of the correct parity. Update S/MIME
1670 code to use new functions and hence generate correct parity DES keys.
1671 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1672 valid (weak or incorrect parity).
1675 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1676 as looking them up. This is useful when the verified structure may contain
1677 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1678 present unless the new PKCS7_NO_CRL flag is asserted.
1681 *) Extend ASN1 oid configuration module. It now additionally accepts the
1684 shortName = some long name, 1.2.3.4
1687 *) Reimplemented the BN_CTX implementation. There is now no more static
1688 limitation on the number of variables it can handle nor the depth of the
1689 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1690 information can now expand as required, and rather than having a single
1691 static array of bignums, BN_CTX now uses a linked-list of such arrays
1692 allowing it to expand on demand whilst maintaining the usefulness of
1693 BN_CTX's "bundling".
1696 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1697 to allow all RSA operations to function using a single BN_CTX.
1700 *) Preliminary support for certificate policy evaluation and checking. This
1701 is initially intended to pass the tests outlined in "Conformance Testing
1702 of Relying Party Client Certificate Path Processing Logic" v1.07.
1705 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1706 remained unused and not that useful. A variety of other little bignum
1707 tweaks and fixes have also been made continuing on from the audit (see
1711 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1712 associated ASN1, EVP and SSL functions and old ASN1 macros.
1715 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1716 and this should never fail. So the return value from the use of
1717 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1718 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1721 *) BN_CTX_get() should return zero-valued bignums, providing the same
1722 initialised value as BN_new().
1723 [Geoff Thorpe, suggested by Ulf Möller]
1725 *) Support for inhibitAnyPolicy certificate extension.
1728 *) An audit of the BIGNUM code is underway, for which debugging code is
1729 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1730 is considered valid when processing BIGNUMs, and causes execution to
1731 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1732 further steps are taken to deliberately pollute unused data in BIGNUM
1733 structures to try and expose faulty code further on. For now, openssl will
1734 (in its default mode of operation) continue to tolerate the inconsistent
1735 forms that it has tolerated in the past, but authors and packagers should
1736 consider trying openssl and their own applications when compiled with
1737 these debugging symbols defined. It will help highlight potential bugs in
1738 their own code, and will improve the test coverage for OpenSSL itself. At
1739 some point, these tighter rules will become openssl's default to improve
1740 maintainability, though the assert()s and other overheads will remain only
1741 in debugging configurations. See bn.h for more details.
1742 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1744 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1745 that can only be obtained through BN_CTX_new() (which implicitly
1746 initialises it). The presence of this function only made it possible
1747 to overwrite an existing structure (and cause memory leaks).
1750 *) Because of the callback-based approach for implementing LHASH as a
1751 template type, lh_insert() adds opaque objects to hash-tables and
1752 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1753 to clean up those corresponding objects before destroying the hash table
1754 (and losing the object pointers). So some over-zealous constifications in
1755 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1756 objects as "const" and the lh_doall[_arg] callback wrappers are not
1757 prototyped to have "const" restrictions on the object pointers they are
1758 given (and so aren't required to cast them away any more).
1761 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1762 (speed) prefers to use its own implementation. The two implementations
1763 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1764 its object type properly exposed (MS_TM) instead of casting to/from "char
1765 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1766 aren't necessarily the greatest nomenclatures - but this is what was used
1767 internally to the implementation so I've used that for now.
1770 *) Ensure that deprecated functions do not get compiled when
1771 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1772 the self-tests were still using deprecated key-generation functions so
1773 these have been updated also.
1776 *) Reorganise PKCS#7 code to separate the digest location functionality
1777 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1778 New function PKCS7_set_digest() to set the digest type for PKCS#7
1779 digestedData type. Add additional code to correctly generate the
1780 digestedData type and add support for this type in PKCS7 initialization
1784 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1785 structure of type "other".
1788 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1789 sure the loop does correctly stop and breaking ("division by zero")
1790 modulus operations are not performed. The (pre-generated) prime
1791 table crypto/bn/bn_prime.h was already correct, but it could not be
1792 re-generated on some platforms because of the "division by zero"
1793 situation in the script.
1794 [Ralf S. Engelschall]
1796 *) Update support for ECC-based TLS ciphersuites according to
1797 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1798 SHA-1 now is only used for "small" curves (where the
1799 representation of a field element takes up to 24 bytes); for
1800 larger curves, the field element resulting from ECDH is directly
1801 used as premaster secret.
1802 [Douglas Stebila (Sun Microsystems Laboratories)]
1804 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1805 curve secp160r1 to the tests.
1806 [Douglas Stebila (Sun Microsystems Laboratories)]
1808 *) Add the possibility to load symbols globally with DSO.
1809 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1811 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1812 control of the error stack.
1815 *) Add support for STORE in ENGINE.
1818 *) Add the STORE type. The intention is to provide a common interface
1819 to certificate and key stores, be they simple file-based stores, or
1820 HSM-type store, or LDAP stores, or...
1821 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1824 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1825 pass a list of arguments to any function as well as provide a way
1826 for a function to pass data back to the caller.
1829 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1830 works like BUF_strdup() but can be used to duplicate a portion of
1831 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1835 *) Add the function sk_find_ex() which works like sk_find(), but will
1836 return an index to an element even if an exact match couldn't be
1837 found. The index is guaranteed to point at the element where the
1838 searched-for key would be inserted to preserve sorting order.
1841 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1842 takes an extra flags argument for optional functionality. Currently,
1843 the following flags are defined:
1845 OBJ_BSEARCH_VALUE_ON_NOMATCH
1846 This one gets OBJ_bsearch_ex() to return a pointer to the first
1847 element where the comparing function returns a negative or zero
1850 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1851 This one gets OBJ_bsearch_ex() to return a pointer to the first
1852 element where the comparing function returns zero. This is useful
1853 if there are more than one element where the comparing function
1857 *) Make it possible to create self-signed certificates with 'openssl ca'
1858 in such a way that the self-signed certificate becomes part of the
1859 CA database and uses the same mechanisms for serial number generation
1860 as all other certificate signing. The new flag '-selfsign' enables
1861 this functionality. Adapt CA.sh and CA.pl.in.
1864 *) Add functionality to check the public key of a certificate request
1865 against a given private. This is useful to check that a certificate
1866 request can be signed by that key (self-signing).
1869 *) Make it possible to have multiple active certificates with the same
1870 subject in the CA index file. This is done only if the keyword
1871 'unique_subject' is set to 'no' in the main CA section (default
1872 if 'CA_default') of the configuration file. The value is saved
1873 with the database itself in a separate index attribute file,
1874 named like the index file with '.attr' appended to the name.
1877 *) Generate muti valued AVAs using '+' notation in config files for
1881 *) Support for nameConstraints certificate extension.
1884 *) Support for policyConstraints certificate extension.
1887 *) Support for policyMappings certificate extension.
1890 *) Make sure the default DSA_METHOD implementation only uses its
1891 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1892 and change its own handlers to be NULL so as to remove unnecessary
1893 indirection. This lets alternative implementations fallback to the
1894 default implementation more easily.
1897 *) Support for directoryName in GeneralName related extensions
1901 *) Make it possible to link applications using Makefile.shared.
1902 Make that possible even when linking against static libraries!
1905 *) Support for single pass processing for S/MIME signing. This now
1906 means that S/MIME signing can be done from a pipe, in addition
1907 cleartext signing (multipart/signed type) is effectively streaming
1908 and the signed data does not need to be all held in memory.
1910 This is done with a new flag PKCS7_STREAM. When this flag is set
1911 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1912 is done after the data is output (and digests calculated) in
1913 SMIME_write_PKCS7().
1916 *) Add full support for -rpath/-R, both in shared libraries and
1917 applications, at least on the platforms where it's known how
1921 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1922 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1923 will now compute a table of multiples of the generator that
1924 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1925 faster (notably in the case of a single point multiplication,
1926 scalar * generator).
1927 [Nils Larsch, Bodo Moeller]
1929 *) IPv6 support for certificate extensions. The various extensions
1930 which use the IP:a.b.c.d can now take IPv6 addresses using the
1931 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1935 *) Added an ENGINE that implements RSA by performing private key
1936 exponentiations with the GMP library. The conversions to and from
1937 GMP's mpz_t format aren't optimised nor are any montgomery forms
1938 cached, and on x86 it appears OpenSSL's own performance has caught up.
1939 However there are likely to be other architectures where GMP could
1940 provide a boost. This ENGINE is not built in by default, but it can be
1941 specified at Configure time and should be accompanied by the necessary
1942 linker additions, eg;
1943 ./config -DOPENSSL_USE_GMP -lgmp
1946 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1947 testing availability of engines with "-t" - the old behaviour is
1948 produced by increasing the feature's verbosity with "-tt".
1951 *) ECDSA routines: under certain error conditions uninitialized BN objects
1952 could be freed. Solution: make sure initialization is performed early
1953 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1957 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1958 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1959 software implementations. For DSA and DH, parameter generation can
1960 also be overriden by providing the appropriate method callbacks.
1963 *) Change the "progress" mechanism used in key-generation and
1964 primality testing to functions that take a new BN_GENCB pointer in
1965 place of callback/argument pairs. The new API functions have "_ex"
1966 postfixes and the older functions are reimplemented as wrappers for
1967 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1968 declarations of the old functions to help (graceful) attempts to
1969 migrate to the new functions. Also, the new key-generation API
1970 functions operate on a caller-supplied key-structure and return
1971 success/failure rather than returning a key or NULL - this is to
1972 help make "keygen" another member function of RSA_METHOD etc.
1974 Example for using the new callback interface:
1976 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1980 BN_GENCB_set(&my_cb, my_callback, my_arg);
1982 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1983 /* For the meaning of a, b in calls to my_callback(), see the
1984 * documentation of the function that calls the callback.
1985 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1986 * my_callback should return 1 if it wants BN_is_prime_ex()
1987 * to continue, or 0 to stop.
1992 *) Change the ZLIB compression method to be stateful, and make it
1993 available to TLS with the number defined in
1994 draft-ietf-tls-compression-04.txt.
1997 *) Add the ASN.1 structures and functions for CertificatePair, which
1998 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2000 CertificatePair ::= SEQUENCE {
2001 forward [0] Certificate OPTIONAL,
2002 reverse [1] Certificate OPTIONAL,
2003 -- at least one of the pair shall be present -- }
2005 Also implement the PEM functions to read and write certificate
2006 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2008 This needed to be defined, mostly for the sake of the LDAP
2009 attribute crossCertificatePair, but may prove useful elsewhere as
2013 *) Make it possible to inhibit symlinking of shared libraries in
2014 Makefile.shared, for Cygwin's sake.
2017 *) Extend the BIGNUM API by creating a function
2018 void BN_set_negative(BIGNUM *a, int neg);
2019 and a macro that behave like
2020 int BN_is_negative(const BIGNUM *a);
2022 to avoid the need to access 'a->neg' directly in applications.
2025 *) Implement fast modular reduction for pseudo-Mersenne primes
2026 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2027 EC_GROUP_new_curve_GFp() will now automatically use this
2029 [Nils Larsch <nla@trustcenter.de>]
2031 *) Add new lock type (CRYPTO_LOCK_BN).
2034 *) Change the ENGINE framework to automatically load engines
2035 dynamically from specific directories unless they could be
2036 found to already be built in or loaded. Move all the
2037 current engines except for the cryptodev one to a new
2039 The engines in engines/ are built as shared libraries if
2040 the "shared" options was given to ./Configure or ./config.
2041 Otherwise, they are inserted in libcrypto.a.
2042 /usr/local/ssl/engines is the default directory for dynamic
2043 engines, but that can be overriden at configure time through
2044 the usual use of --prefix and/or --openssldir, and at run
2045 time with the environment variable OPENSSL_ENGINES.
2046 [Geoff Thorpe and Richard Levitte]
2048 *) Add Makefile.shared, a helper makefile to build shared
2049 libraries. Addapt Makefile.org.
2052 *) Add version info to Win32 DLLs.
2053 [Peter 'Luna' Runestig" <peter@runestig.com>]
2055 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2056 can be added using this API to created arbitrary PKCS#12
2057 files while avoiding the low level API.
2059 New options to PKCS12_create(), key or cert can be NULL and
2060 will then be omitted from the output file. The encryption
2061 algorithm NIDs can be set to -1 for no encryption, the mac
2062 iteration count can be set to 0 to omit the mac.
2064 Enhance pkcs12 utility by making the -nokeys and -nocerts
2065 options work when creating a PKCS#12 file. New option -nomac
2066 to omit the mac, NONE can be set for an encryption algorithm.
2067 New code is modified to use the enhanced PKCS12_create()
2068 instead of the low level API.
2071 *) Extend ASN1 encoder to support indefinite length constructed
2072 encoding. This can output sequences tags and octet strings in
2073 this form. Modify pk7_asn1.c to support indefinite length
2074 encoding. This is experimental and needs additional code to
2075 be useful, such as an ASN1 bio and some enhanced streaming
2078 Extend template encode functionality so that tagging is passed
2079 down to the template encoder.
2082 *) Let 'openssl req' fail if an argument to '-newkey' is not
2083 recognized instead of using RSA as a default.
2086 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2087 As these are not official, they are not included in "ALL";
2088 the "ECCdraft" ciphersuite group alias can be used to select them.
2089 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2091 *) Add ECDH engine support.
2092 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2094 *) Add ECDH in new directory crypto/ecdh/.
2095 [Douglas Stebila (Sun Microsystems Laboratories)]
2097 *) Let BN_rand_range() abort with an error after 100 iterations
2098 without success (which indicates a broken PRNG).
2101 *) Change BN_mod_sqrt() so that it verifies that the input value
2102 is really the square of the return value. (Previously,
2103 BN_mod_sqrt would show GIGO behaviour.)
2106 *) Add named elliptic curves over binary fields from X9.62, SECG,
2107 and WAP/WTLS; add OIDs that were still missing.
2109 [Sheueling Chang Shantz and Douglas Stebila
2110 (Sun Microsystems Laboratories)]
2112 *) Extend the EC library for elliptic curves over binary fields
2113 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2116 EC_GF2m_simple_method
2120 EC_GROUP_new_curve_GF2m
2121 EC_GROUP_set_curve_GF2m
2122 EC_GROUP_get_curve_GF2m
2123 EC_POINT_set_affine_coordinates_GF2m
2124 EC_POINT_get_affine_coordinates_GF2m
2125 EC_POINT_set_compressed_coordinates_GF2m
2127 Point compression for binary fields is disabled by default for
2128 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2131 As binary polynomials are represented as BIGNUMs, various members
2132 of the EC_GROUP and EC_POINT data structures can be shared
2133 between the implementations for prime fields and binary fields;
2134 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2135 are essentially identical to their ..._GFp counterparts.
2136 (For simplicity, the '..._GFp' prefix has been dropped from
2137 various internal method names.)
2139 An internal 'field_div' method (similar to 'field_mul' and
2140 'field_sqr') has been added; this is used only for binary fields.
2142 [Sheueling Chang Shantz and Douglas Stebila
2143 (Sun Microsystems Laboratories)]
2145 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2146 through methods ('mul', 'precompute_mult').
2148 The generic implementations (now internally called 'ec_wNAF_mul'
2149 and 'ec_wNAF_precomputed_mult') remain the default if these
2150 methods are undefined.
2152 [Sheueling Chang Shantz and Douglas Stebila
2153 (Sun Microsystems Laboratories)]
2155 *) New function EC_GROUP_get_degree, which is defined through
2156 EC_METHOD. For curves over prime fields, this returns the bit
2157 length of the modulus.
2159 [Sheueling Chang Shantz and Douglas Stebila
2160 (Sun Microsystems Laboratories)]
2162 *) New functions EC_GROUP_dup, EC_POINT_dup.
2163 (These simply call ..._new and ..._copy).
2165 [Sheueling Chang Shantz and Douglas Stebila
2166 (Sun Microsystems Laboratories)]
2168 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2169 Polynomials are represented as BIGNUMs (where the sign bit is not
2170 used) in the following functions [macros]:
2173 BN_GF2m_sub [= BN_GF2m_add]
2174 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2175 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2176 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2178 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2179 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2180 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2181 BN_GF2m_cmp [= BN_ucmp]
2183 (Note that only the 'mod' functions are actually for fields GF(2^m).
2184 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2186 For some functions, an the irreducible polynomial defining a
2187 field can be given as an 'unsigned int[]' with strictly
2188 decreasing elements giving the indices of those bits that are set;
2189 i.e., p[] represents the polynomial
2190 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2192 p[0] > p[1] > ... > p[k] = 0.
2193 This applies to the following functions:
2198 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2199 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2201 BN_GF2m_mod_sqrt_arr
2202 BN_GF2m_mod_solve_quad_arr
2206 Conversion can be performed by the following functions:
2211 bntest.c has additional tests for binary polynomial arithmetic.
2213 Two implementations for BN_GF2m_mod_div() are available.
2214 The default algorithm simply uses BN_GF2m_mod_inv() and
2215 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2216 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2217 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2219 [Sheueling Chang Shantz and Douglas Stebila
2220 (Sun Microsystems Laboratories)]
2222 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2223 functionality is disabled at compile-time.
2224 [Douglas Stebila <douglas.stebila@sun.com>]
2226 *) Change default behaviour of 'openssl asn1parse' so that more
2227 information is visible when viewing, e.g., a certificate:
2229 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2230 mode the content of non-printable OCTET STRINGs is output in a
2231 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2232 avoid the appearance of a printable string.
2233 [Nils Larsch <nla@trustcenter.de>]
2235 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2237 EC_GROUP_set_asn1_flag()
2238 EC_GROUP_get_asn1_flag()
2239 EC_GROUP_set_point_conversion_form()
2240 EC_GROUP_get_point_conversion_form()
2241 These control ASN1 encoding details:
2242 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2243 has been set to OPENSSL_EC_NAMED_CURVE.
2244 - Points are encoded in uncompressed form by default; options for
2245 asn1_for are as for point2oct, namely
2246 POINT_CONVERSION_COMPRESSED
2247 POINT_CONVERSION_UNCOMPRESSED
2248 POINT_CONVERSION_HYBRID
2250 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2253 EC_GROUP_get0_seed()
2254 EC_GROUP_get_seed_len()
2255 This is used only for ASN1 purposes (so far).
2256 [Nils Larsch <nla@trustcenter.de>]
2258 *) Add 'field_type' member to EC_METHOD, which holds the NID
2259 of the appropriate field type OID. The new function
2260 EC_METHOD_get_field_type() returns this value.
2261 [Nils Larsch <nla@trustcenter.de>]
2266 EC_POINT_point2hex()
2267 EC_POINT_hex2point()
2268 providing useful interfaces to EC_POINT_point2oct() and
2269 EC_POINT_oct2point().
2270 [Nils Larsch <nla@trustcenter.de>]
2272 *) Change internals of the EC library so that the functions
2273 EC_GROUP_set_generator()
2274 EC_GROUP_get_generator()
2275 EC_GROUP_get_order()
2276 EC_GROUP_get_cofactor()
2277 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2278 to methods, which would lead to unnecessary code duplication when
2279 adding different types of curves.
2280 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2282 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2283 arithmetic, and such that modified wNAFs are generated
2284 (which avoid length expansion in many cases).
2287 *) Add a function EC_GROUP_check_discriminant() (defined via
2288 EC_METHOD) that verifies that the curve discriminant is non-zero.
2290 Add a function EC_GROUP_check() that makes some sanity tests
2291 on a EC_GROUP, its generator and order. This includes
2292 EC_GROUP_check_discriminant().
2293 [Nils Larsch <nla@trustcenter.de>]
2295 *) Add ECDSA in new directory crypto/ecdsa/.
2297 Add applications 'openssl ecparam' and 'openssl ecdsa'
2298 (these are based on 'openssl dsaparam' and 'openssl dsa').
2300 ECDSA support is also included in various other files across the
2301 library. Most notably,
2302 - 'openssl req' now has a '-newkey ecdsa:file' option;
2303 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2304 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2305 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2306 them suitable for ECDSA where domain parameters must be
2307 extracted before the specific public key;
2308 - ECDSA engine support has been added.
2309 [Nils Larsch <nla@trustcenter.de>]
2311 *) Include some named elliptic curves, and add OIDs from X9.62,
2312 SECG, and WAP/WTLS. Each curve can be obtained from the new
2314 EC_GROUP_new_by_curve_name(),
2315 and the list of available named curves can be obtained with
2316 EC_get_builtin_curves().
2317 Also add a 'curve_name' member to EC_GROUP objects, which can be
2319 EC_GROUP_set_curve_name()
2320 EC_GROUP_get_curve_name()
2321 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2323 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2324 was actually never needed) and in BN_mul(). The removal in BN_mul()
2325 required a small change in bn_mul_part_recursive() and the addition
2326 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2327 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2328 bn_sub_words() and bn_add_words() except they take arrays with
2332 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
2334 *) In the SSL/TLS server implementation, be strict about session ID
2335 context matching (which matters if an application uses a single
2336 external cache for different purposes). Previously,
2337 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2338 set. This did ensure strict client verification, but meant that,
2339 with applications using a single external cache for quite
2340 different requirements, clients could circumvent ciphersuite
2341 restrictions for a given session ID context by starting a session
2342 in a different context.
2345 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2347 *) Cleanse PEM buffers before freeing them since they may contain
2349 [Benjamin Bennett <ben@psc.edu>]
2351 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2352 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2353 authentication-only ciphersuites.
2356 *) Since AES128 and AES256 share a single mask bit in the logic of
2357 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2358 kludge to work properly if AES128 is available and AES256 isn't.
2361 *) Expand security boundary to match 1.1.1 module.
2364 *) Remove redundant features: hash file source, editing of test vectors
2365 modify fipsld to use external fips_premain.c signature.
2368 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2369 run algorithm test programs.
2372 *) Make algorithm test programs more tolerant of whitespace.
2375 *) Have SSL/TLS server implementation tolerate "mismatched" record
2376 protocol version while receiving ClientHello even if the
2377 ClientHello is fragmented. (The server can't insist on the
2378 particular protocol version it has chosen before the ServerHello
2379 message has informed the client about his choice.)
2382 *) Load error codes if they are not already present instead of using a
2383 static variable. This allows them to be cleanly unloaded and reloaded.
2386 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2388 *) Introduce limits to prevent malicious keys being able to
2389 cause a denial of service. (CVE-2006-2940)
2390 [Steve Henson, Bodo Moeller]
2392 *) Fix ASN.1 parsing of certain invalid structures that can result
2393 in a denial of service. (CVE-2006-2937) [Steve Henson]
2395 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2396 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2398 *) Fix SSL client code which could crash if connecting to a
2399 malicious SSLv2 server. (CVE-2006-4343)
2400 [Tavis Ormandy and Will Drewry, Google Security Team]
2402 *) Change ciphersuite string processing so that an explicit
2403 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2404 will no longer include "AES128-SHA"), and any other similar
2405 ciphersuite (same bitmap) from *other* protocol versions (so that
2406 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2407 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2408 changes from 0.9.8b and 0.9.8d.
2411 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2413 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2414 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2416 *) Change the Unix randomness entropy gathering to use poll() when
2417 possible instead of select(), since the latter has some
2418 undesirable limitations.
2419 [Darryl Miles via Richard Levitte and Bodo Moeller]
2421 *) Disable rogue ciphersuites:
2423 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2424 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2425 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2427 The latter two were purportedly from
2428 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2431 Also deactive the remaining ciphersuites from
2432 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2433 unofficial, and the ID has long expired.
2436 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2437 dual-core machines) and other potential thread-safety issues.
2440 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2442 *) Adapt fipsld and the build system to link against the validated FIPS
2443 module in FIPS mode.
2446 *) Fixes for VC++ 2005 build under Windows.
2449 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2450 from a Windows bash shell such as MSYS. It is autodetected from the
2451 "config" script when run from a VC++ environment. Modify standard VC++
2452 build to use fipscanister.o from the GNU make build.
2455 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2457 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2458 The value now differs depending on if you build for FIPS or not.
2459 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2460 safely run with a non-FIPSed libcrypto, as it may crash because of
2461 the difference induced by this change.
2464 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2466 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2467 (part of SSL_OP_ALL). This option used to disable the
2468 countermeasure against man-in-the-middle protocol-version
2469 rollback in the SSL 2.0 server implementation, which is a bad
2470 idea. (CVE-2005-2969)
2472 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2473 for Information Security, National Institute of Advanced Industrial
2474 Science and Technology [AIST], Japan)]
2476 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2477 mainly for FIPS compliance and not fully integrated at this stage.
2480 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2481 the exponentiation using a fixed-length exponent. (Otherwise,
2482 the information leaked through timing could expose the secret key
2483 after many signatures; cf. Bleichenbacher's attack on DSA with
2487 *) Make a new fixed-window mod_exp implementation the default for
2488 RSA, DSA, and DH private-key operations so that the sequence of
2489 squares and multiplies and the memory access pattern are
2490 independent of the particular secret key. This will mitigate
2491 cache-timing and potential related attacks.
2493 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2494 and this is automatically used by BN_mod_exp_mont() if the new flag
2495 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2496 will use this BN flag for private exponents unless the flag
2497 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2498 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2500 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2502 *) Change the client implementation for SSLv23_method() and
2503 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2504 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2505 (Previously, the SSL 2.0 backwards compatible Client Hello
2506 message format would be used even with SSL_OP_NO_SSLv2.)
2509 *) Add support for smime-type MIME parameter in S/MIME messages which some
2513 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2514 a threadsafe manner. Modify rsa code to use new function and add calls
2515 to dsa and dh code (which had race conditions before).
2518 *) Include the fixed error library code in the C error file definitions
2519 instead of fixing them up at runtime. This keeps the error code
2520 structures constant.
2523 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2525 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2528 *) Fixes for newer kerberos headers. NB: the casts are needed because
2529 the 'length' field is signed on one version and unsigned on another
2530 with no (?) obvious way to tell the difference, without these VC++
2531 complains. Also the "definition" of FAR (blank) is no longer included
2532 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2533 some needed definitions.
2536 *) Undo Cygwin change.
2539 *) Added support for proxy certificates according to RFC 3820.
2540 Because they may be a security thread to unaware applications,
2541 they must be explicitely allowed in run-time. See
2542 docs/HOWTO/proxy_certificates.txt for further information.
2545 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2547 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2548 server and client random values. Previously
2549 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2550 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2552 This change has negligible security impact because:
2554 1. Server and client random values still have 24 bytes of pseudo random
2557 2. Server and client random values are sent in the clear in the initial
2560 3. The master secret is derived using the premaster secret (48 bytes in
2561 size for static RSA ciphersuites) as well as client server and random
2564 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2567 [Stephen Henson, reported by UK NISCC]
2569 *) Use Windows randomness collection on Cygwin.
2572 *) Fix hang in EGD/PRNGD query when communication socket is closed
2573 prematurely by EGD/PRNGD.
2574 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2576 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2579 *) Back-port of selected performance improvements from development
2580 branch, as well as improved support for PowerPC platforms.
2583 *) Add lots of checks for memory allocation failure, error codes to indicate
2584 failure and freeing up memory if a failure occurs.
2585 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2587 *) Add new -passin argument to dgst.
2590 *) Perform some character comparisons of different types in X509_NAME_cmp:
2591 this is needed for some certificates that reencode DNs into UTF8Strings
2592 (in violation of RFC3280) and can't or wont issue name rollover
2596 *) Make an explicit check during certificate validation to see that
2597 the CA setting in each certificate on the chain is correct. As a
2598 side effect always do the following basic checks on extensions,
2599 not just when there's an associated purpose to the check:
2601 - if there is an unhandled critical extension (unless the user
2602 has chosen to ignore this fault)
2603 - if the path length has been exceeded (if one is set at all)
2604 - that certain extensions fit the associated purpose (if one has
2608 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2610 *) Avoid a race condition when CRLs are checked in a multi threaded
2611 environment. This would happen due to the reordering of the revoked
2612 entries during signature checking and serial number lookup. Now the
2613 encoding is cached and the serial number sort performed under a lock.
2614 Add new STACK function sk_is_sorted().
2617 *) Add Delta CRL to the extension code.
2620 *) Various fixes to s3_pkt.c so alerts are sent properly.
2621 [David Holmes <d.holmes@f5.com>]
2623 *) Reduce the chances of duplicate issuer name and serial numbers (in
2624 violation of RFC3280) using the OpenSSL certificate creation utilities.
2625 This is done by creating a random 64 bit value for the initial serial
2626 number when a serial number file is created or when a self signed
2627 certificate is created using 'openssl req -x509'. The initial serial
2628 number file is created using 'openssl x509 -next_serial' in CA.pl
2629 rather than being initialized to 1.
2632 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2634 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2635 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2636 [Joe Orton, Steve Henson]
2638 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2640 [Joe Orton, Steve Henson]
2642 *) Make it possible to have multiple active certificates with the same
2643 subject in the CA index file. This is done only if the keyword
2644 'unique_subject' is set to 'no' in the main CA section (default
2645 if 'CA_default') of the configuration file. The value is saved
2646 with the database itself in a separate index attribute file,
2647 named like the index file with '.attr' appended to the name.
2650 *) X509 verify fixes. Disable broken certificate workarounds when
2651 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2652 keyUsage extension present. Don't accept CRLs with unhandled critical
2653 extensions: since verify currently doesn't process CRL extensions this
2654 rejects a CRL with *any* critical extensions. Add new verify error codes
2658 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2659 A clarification of RFC2560 will require the use of OCTET STRINGs and
2660 some implementations cannot handle the current raw format. Since OpenSSL
2661 copies and compares OCSP nonces as opaque blobs without any attempt at
2662 parsing them this should not create any compatibility issues.
2665 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2666 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2667 this HMAC (and other) operations are several times slower than OpenSSL
2671 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2672 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2674 *) Use the correct content when signing type "other".
2677 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2679 *) Fix various bugs revealed by running the NISCC test suite:
2681 Stop out of bounds reads in the ASN1 code when presented with
2682 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2684 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2686 If verify callback ignores invalid public key errors don't try to check
2687 certificate signature with the NULL public key.
2691 *) New -ignore_err option in ocsp application to stop the server
2692 exiting on the first error in a request.
2695 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2696 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2700 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2701 extra data after the compression methods not only for TLS 1.0
2702 but also for SSL 3.0 (as required by the specification).
2703 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2705 *) Change X509_certificate_type() to mark the key as exported/exportable
2706 when it's 512 *bits* long, not 512 bytes.
2709 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2710 blocks during encryption.
2713 *) Various fixes to base64 BIO and non blocking I/O. On write
2714 flushes were not handled properly if the BIO retried. On read
2715 data was not being buffered properly and had various logic bugs.
2716 This also affects blocking I/O when the data being decoded is a
2720 *) Various S/MIME bugfixes and compatibility changes:
2721 output correct application/pkcs7 MIME type if
2722 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2723 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2724 of files as .eml work). Correctly handle very long lines in MIME
2728 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2730 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2731 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2732 a protocol version number mismatch like a decryption error
2733 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2736 *) Turn on RSA blinding by default in the default implementation
2737 to avoid a timing attack. Applications that don't want it can call
2738 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2739 They would be ill-advised to do so in most cases.
2740 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2742 *) Change RSA blinding code so that it works when the PRNG is not
2743 seeded (in this case, the secret RSA exponent is abused as
2744 an unpredictable seed -- if it is not unpredictable, there
2745 is no point in blinding anyway). Make RSA blinding thread-safe
2746 by remembering the creator's thread ID in rsa->blinding and
2747 having all other threads use local one-time blinding factors
2748 (this requires more computation than sharing rsa->blinding, but
2749 avoids excessive locking; and if an RSA object is not shared
2750 between threads, blinding will still be very fast).
2753 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2754 ENGINE as defaults for all supported algorithms irrespective of
2755 the 'flags' parameter. 'flags' is now honoured, so applications
2756 should make sure they are passing it correctly.
2759 *) Target "mingw" now allows native Windows code to be generated in
2760 the Cygwin environment as well as with the MinGW compiler.
2763 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2765 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2766 via timing by performing a MAC computation even if incorrrect
2767 block cipher padding has been found. This is a countermeasure
2768 against active attacks where the attacker has to distinguish
2769 between bad padding and a MAC verification error. (CVE-2003-0078)
2771 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2772 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2773 Martin Vuagnoux (EPFL, Ilion)]
2775 *) Make the no-err option work as intended. The intention with no-err
2776 is not to have the whole error stack handling routines removed from
2777 libcrypto, it's only intended to remove all the function name and
2778 reason texts, thereby removing some of the footprint that may not
2779 be interesting if those errors aren't displayed anyway.
2781 NOTE: it's still possible for any application or module to have it's
2782 own set of error texts inserted. The routines are there, just not
2783 used by default when no-err is given.
2786 *) Add support for FreeBSD on IA64.
2787 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2789 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2790 Kerberos function mit_des_cbc_cksum(). Before this change,
2791 the value returned by DES_cbc_cksum() was like the one from
2792 mit_des_cbc_cksum(), except the bytes were swapped.
2793 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2795 *) Allow an application to disable the automatic SSL chain building.
2796 Before this a rather primitive chain build was always performed in
2797 ssl3_output_cert_chain(): an application had no way to send the
2798 correct chain if the automatic operation produced an incorrect result.
2800 Now the chain builder is disabled if either:
2802 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2804 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2806 The reasoning behind this is that an application would not want the
2807 auto chain building to take place if extra chain certificates are
2808 present and it might also want a means of sending no additional
2809 certificates (for example the chain has two certificates and the
2813 *) Add the possibility to build without the ENGINE framework.
2814 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2816 *) Under Win32 gmtime() can return NULL: check return value in
2817 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2820 *) DSA routines: under certain error conditions uninitialized BN objects
2821 could be freed. Solution: make sure initialization is performed early
2822 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2823 Nils Larsch <nla@trustcenter.de> via PR#459)
2826 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2827 checked on reconnect on the client side, therefore session resumption
2828 could still fail with a "ssl session id is different" error. This
2829 behaviour is masked when SSL_OP_ALL is used due to
2830 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2831 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2832 followup to PR #377.
2835 *) IA-32 assembler support enhancements: unified ELF targets, support
2836 for SCO/Caldera platforms, fix for Cygwin shared build.
2839 *) Add support for FreeBSD on sparc64. As a consequence, support for
2840 FreeBSD on non-x86 processors is separate from x86 processors on
2841 the config script, much like the NetBSD support.
2842 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2844 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2846 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2849 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2850 code (06) was taken as the first octet of the session ID and the last
2851 octet was ignored consequently. As a result SSLv2 client side session
2852 caching could not have worked due to the session ID mismatch between
2854 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2858 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2859 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2863 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2864 seems that in spite of existing for more than a year, many application
2865 author have done nothing to provide the necessary callbacks, which
2866 means that this particular engine will not work properly anywhere.
2867 This is a very unfortunate situation which forces us, in the name
2868 of usability, to give the hw_ncipher.c a static lock, which is part
2870 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2871 appear in 0.9.8 or later. We EXPECT application authors to have
2872 dealt properly with this when 0.9.8 is released (unless we actually
2873 make such changes in the libcrypto locking code that changes will
2874 have to be made anyway).
2877 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2878 octets have been read, EOF or an error occurs. Without this change
2879 some truncated ASN1 structures will not produce an error.
2882 *) Disable Heimdal support, since it hasn't been fully implemented.
2883 Still give the possibility to force the use of Heimdal, but with
2884 warnings and a request that patches get sent to openssl-dev.
2887 *) Add the VC-CE target, introduce the WINCE sysname, and add
2888 INSTALL.WCE and appropriate conditionals to make it build.
2889 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2891 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2892 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2893 edit numbers of the version.
2894 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2896 *) Introduce safe string copy and catenation functions
2897 (BUF_strlcpy() and BUF_strlcat()).
2898 [Ben Laurie (CHATS) and Richard Levitte]
2900 *) Avoid using fixed-size buffers for one-line DNs.
2901 [Ben Laurie (CHATS)]
2903 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2904 resizing buffers containing secrets, and use where appropriate.
2905 [Ben Laurie (CHATS)]
2907 *) Avoid using fixed size buffers for configuration file location.
2908 [Ben Laurie (CHATS)]
2910 *) Avoid filename truncation for various CA files.
2911 [Ben Laurie (CHATS)]
2913 *) Use sizeof in preference to magic numbers.
2914 [Ben Laurie (CHATS)]
2916 *) Avoid filename truncation in cert requests.
2917 [Ben Laurie (CHATS)]
2919 *) Add assertions to check for (supposedly impossible) buffer
2921 [Ben Laurie (CHATS)]
2923 *) Don't cache truncated DNS entries in the local cache (this could
2924 potentially lead to a spoofing attack).
2925 [Ben Laurie (CHATS)]
2927 *) Fix various buffers to be large enough for hex/decimal
2928 representations in a platform independent manner.
2929 [Ben Laurie (CHATS)]
2931 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2932 resizing buffers containing secrets, and use where appropriate.
2933 [Ben Laurie (CHATS)]
2935 *) Add BIO_indent() to avoid much slightly worrying code to do
2937 [Ben Laurie (CHATS)]
2939 *) Convert sprintf()/BIO_puts() to BIO_printf().
2940 [Ben Laurie (CHATS)]
2942 *) buffer_gets() could terminate with the buffer only half
2944 [Ben Laurie (CHATS)]
2946 *) Add assertions to prevent user-supplied crypto functions from
2947 overflowing internal buffers by having large block sizes, etc.
2948 [Ben Laurie (CHATS)]
2950 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2952 [Ben Laurie (CHATS)]
2954 *) Eliminate unused copy of key in RC4.
2955 [Ben Laurie (CHATS)]
2957 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2958 [Ben Laurie (CHATS)]
2960 *) Fix off-by-one error in EGD path.
2961 [Ben Laurie (CHATS)]
2963 *) If RANDFILE path is too long, ignore instead of truncating.
2964 [Ben Laurie (CHATS)]
2966 *) Eliminate unused and incorrectly sized X.509 structure
2968 [Ben Laurie (CHATS)]
2970 *) Eliminate unused and dangerous function knumber().
2971 [Ben Laurie (CHATS)]
2973 *) Eliminate unused and dangerous structure, KSSL_ERR.
2974 [Ben Laurie (CHATS)]
2976 *) Protect against overlong session ID context length in an encoded
2977 session object. Since these are local, this does not appear to be
2979 [Ben Laurie (CHATS)]
2981 *) Change from security patch (see 0.9.6e below) that did not affect
2982 the 0.9.6 release series:
2984 Remote buffer overflow in SSL3 protocol - an attacker could
2985 supply an oversized master key in Kerberos-enabled versions.
2987 [Ben Laurie (CHATS)]
2989 *) Change the SSL kerb5 codes to match RFC 2712.
2992 *) Make -nameopt work fully for req and add -reqopt switch.
2993 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2995 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2996 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2998 *) Make sure tests can be performed even if the corresponding algorithms
2999 have been removed entirely. This was also the last step to make
3000 OpenSSL compilable with DJGPP under all reasonable conditions.
3001 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3003 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3004 to allow version independent disabling of normally unselected ciphers,
3005 which may be activated as a side-effect of selecting a single cipher.
3007 (E.g., cipher list string "RSA" enables ciphersuites that are left
3008 out of "ALL" because they do not provide symmetric encryption.
3009 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3010 [Lutz Jaenicke, Bodo Moeller]
3012 *) Add appropriate support for separate platform-dependent build
3013 directories. The recommended way to make a platform-dependent
3014 build directory is the following (tested on Linux), maybe with
3017 # Place yourself outside of the OpenSSL source tree. In
3018 # this example, the environment variable OPENSSL_SOURCE
3019 # is assumed to contain the absolute OpenSSL source directory.
3020 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3021 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3022 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3023 mkdir -p `dirname $F`
3024 ln -s $OPENSSL_SOURCE/$F $F
3027 To be absolutely sure not to disturb the source tree, a "make clean"
3028 is a good thing. If it isn't successfull, don't worry about it,
3029 it probably means the source directory is very clean.
3032 *) Make sure any ENGINE control commands make local copies of string
3033 pointers passed to them whenever necessary. Otherwise it is possible
3034 the caller may have overwritten (or deallocated) the original string
3035 data when a later ENGINE operation tries to use the stored values.
3036 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3038 *) Improve diagnostics in file reading and command-line digests.
3039 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3041 *) Add AES modes CFB and OFB to the object database. Correct an
3042 error in AES-CFB decryption.
3045 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3046 allows existing EVP_CIPHER_CTX structures to be reused after
3047 calling EVP_*Final(). This behaviour is used by encryption
3048 BIOs and some applications. This has the side effect that
3049 applications must explicitly clean up cipher contexts with
3050 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3053 *) Check the values of dna and dnb in bn_mul_recursive before calling
3054 bn_mul_comba (a non zero value means the a or b arrays do not contain
3055 n2 elements) and fallback to bn_mul_normal if either is not zero.
3058 *) Fix escaping of non-ASCII characters when using the -subj option
3059 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3062 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3063 form for "surname", serialNumber has no short form.
3064 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3065 therefore remove "mail" short name for "internet 7".
3066 The OID for unique identifiers in X509 certificates is
3067 x500UniqueIdentifier, not uniqueIdentifier.
3068 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3071 *) Add an "init" command to the ENGINE config module and auto initialize
3072 ENGINEs. Without any "init" command the ENGINE will be initialized
3073 after all ctrl commands have been executed on it. If init=1 the
3074 ENGINE is initailized at that point (ctrls before that point are run
3075 on the uninitialized ENGINE and after on the initialized one). If
3076 init=0 then the ENGINE will not be iniatialized at all.
3079 *) Fix the 'app_verify_callback' interface so that the user-defined
3080 argument is actually passed to the callback: In the
3081 SSL_CTX_set_cert_verify_callback() prototype, the callback
3082 declaration has been changed from
3085 int (*cb)(X509_STORE_CTX *,void *);
3086 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3087 i=s->ctx->app_verify_callback(&ctx)
3088 has been changed into
3089 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3091 To update applications using SSL_CTX_set_cert_verify_callback(),
3092 a dummy argument can be added to their callback functions.
3093 [D. K. Smetters <smetters@parc.xerox.com>]
3095 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3096 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3098 *) Add and OPENSSL_LOAD_CONF define which will cause
3099 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3100 This allows older applications to transparently support certain
3101 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3102 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3103 load the config file and OPENSSL_add_all_algorithms_conf() which will
3104 always load it have also been added.
3107 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3108 Adjust NIDs and EVP layer.
3109 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3111 *) Config modules support in openssl utility.
3113 Most commands now load modules from the config file,
3114 though in a few (such as version) this isn't done
3115 because it couldn't be used for anything.
3117 In the case of ca and req the config file used is
3118 the same as the utility itself: that is the -config
3119 command line option can be used to specify an
3123 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3124 use "openssl_conf" if filename is NULL use default openssl config file.
3127 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3128 config section name. Add a new flag to tolerate a missing config file
3129 and move code to CONF_modules_load_file().
3132 *) Support for crypto accelerator cards from Accelerated Encryption
3133 Processing, www.aep.ie. (Use engine 'aep')
3134 The support was copied from 0.9.6c [engine] and adapted/corrected
3135 to work with the new engine framework.
3136 [AEP Inc. and Richard Levitte]
3138 *) Support for SureWare crypto accelerator cards from Baltimore
3139 Technologies. (Use engine 'sureware')
3140 The support was copied from 0.9.6c [engine] and adapted
3141 to work with the new engine framework.
3144 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3145 make the newer ENGINE framework commands for the CHIL engine work.
3146 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3148 *) Make it possible to produce shared libraries on ReliantUNIX.
3149 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3151 *) Add the configuration target debug-linux-ppro.
3152 Make 'openssl rsa' use the general key loading routines
3153 implemented in apps.c, and make those routines able to
3154 handle the key format FORMAT_NETSCAPE and the variant
3156 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3158 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3159 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3161 *) Add -keyform to rsautl, and document -engine.
3162 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3164 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3165 BIO_R_NO_SUCH_FILE error code rather than the generic
3166 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3169 *) Add new functions
3171 ERR_peek_last_error_line
3172 ERR_peek_last_error_line_data.
3173 These are similar to
3176 ERR_peek_error_line_data,
3177 but report on the latest error recorded rather than the first one
3178 still in the error queue.
3179 [Ben Laurie, Bodo Moeller]
3181 *) default_algorithms option in ENGINE config module. This allows things
3183 default_algorithms = ALL
3184 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3187 *) Prelminary ENGINE config module.
3190 *) New experimental application configuration code.
3193 *) Change the AES code to follow the same name structure as all other
3194 symmetric ciphers, and behave the same way. Move everything to
3195 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3196 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3198 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3199 [Ben Laurie and Theo de Raadt]
3201 *) Add option to output public keys in req command.
3202 [Massimiliano Pala madwolf@openca.org]
3204 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3205 (up to about 10% better than before for P-192 and P-224).
3208 *) New functions/macros
3210 SSL_CTX_set_msg_callback(ctx, cb)
3211 SSL_CTX_set_msg_callback_arg(ctx, arg)
3212 SSL_set_msg_callback(ssl, cb)
3213 SSL_set_msg_callback_arg(ssl, arg)
3215 to request calling a callback function
3217 void cb(int write_p, int version, int content_type,
3218 const void *buf, size_t len, SSL *ssl, void *arg)
3220 whenever a protocol message has been completely received
3221 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3222 protocol version according to which the SSL library interprets
3223 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3224 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3225 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3226 specification (change_cipher_spec(20), alert(21), handshake(22)).
3227 'buf' and 'len' point to the actual message, 'ssl' to the
3228 SSL object, and 'arg' is the application-defined value set by
3229 SSL[_CTX]_set_msg_callback_arg().
3231 'openssl s_client' and 'openssl s_server' have new '-msg' options
3232 to enable a callback that displays all protocol messages.
3235 *) Change the shared library support so shared libraries are built as
3236 soon as the corresponding static library is finished, and thereby get
3237 openssl and the test programs linked against the shared library.
3238 This still only happens when the keyword "shard" has been given to
3239 the configuration scripts.
3241 NOTE: shared library support is still an experimental thing, and
3242 backward binary compatibility is still not guaranteed.
3243 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3245 *) Add support for Subject Information Access extension.
3246 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3248 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3249 additional bytes when new memory had to be allocated, not just
3250 when reusing an existing buffer.
3253 *) New command line and configuration option 'utf8' for the req command.
3254 This allows field values to be specified as UTF8 strings.
3257 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3258 runs for the former and machine-readable output for the latter.
3261 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3262 of the e-mail address in the DN (i.e., it will go into a certificate
3263 extension only). The new configuration file option 'email_in_dn = no'
3264 has the same effect.
3265 [Massimiliano Pala madwolf@openca.org]
3267 *) Change all functions with names starting with des_ to be starting
3268 with DES_ instead. Add wrappers that are compatible with libdes,
3269 but are named _ossl_old_des_*. Finally, add macros that map the
3270 des_* symbols to the corresponding _ossl_old_des_* if libdes
3271 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3272 desired, the des_* symbols will be mapped to DES_*, with one
3275 Since we provide two compatibility mappings, the user needs to
3276 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3277 compatibility is desired. The default (i.e., when that macro
3278 isn't defined) is OpenSSL 0.9.6c compatibility.
3280 There are also macros that enable and disable the support of old
3281 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3282 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3283 are defined, the default will apply: to support the old des routines.
3285 In either case, one must include openssl/des.h to get the correct
3286 definitions. Do not try to just include openssl/des_old.h, that
3289 NOTE: This is a major break of an old API into a new one. Software
3290 authors are encouraged to switch to the DES_ style functions. Some
3291 time in the future, des_old.h and the libdes compatibility functions
3292 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3293 default), and then completely removed.
3296 *) Test for certificates which contain unsupported critical extensions.
3297 If such a certificate is found during a verify operation it is
3298 rejected by default: this behaviour can be overridden by either
3299 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3300 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3301 X509_supported_extension() has also been added which returns 1 if a
3302 particular extension is supported.
3305 *) Modify the behaviour of EVP cipher functions in similar way to digests
3306 to retain compatibility with existing code.
3309 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3310 compatibility with existing code. In particular the 'ctx' parameter does
3311 not have to be to be initialized before the call to EVP_DigestInit() and
3312 it is tidied up after a call to EVP_DigestFinal(). New function
3313 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3314 EVP_MD_CTX_copy() changed to not require the destination to be
3315 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3316 requires the destination to be valid.
3318 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3319 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3322 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3323 so that complete 'Handshake' protocol structures are kept in memory
3324 instead of overwriting 'msg_type' and 'length' with 'body' data.
3327 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3328 [Massimo Santin via Richard Levitte]
3330 *) Major restructuring to the underlying ENGINE code. This includes
3331 reduction of linker bloat, separation of pure "ENGINE" manipulation
3332 (initialisation, etc) from functionality dealing with implementations
3333 of specific crypto iterfaces. This change also introduces integrated
3334 support for symmetric ciphers and digest implementations - so ENGINEs
3335 can now accelerate these by providing EVP_CIPHER and EVP_MD
3336 implementations of their own. This is detailed in crypto/engine/README
3337 as it couldn't be adequately described here. However, there are a few
3338 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3339 were changed in the original introduction of ENGINE code have now
3340 reverted back - the hooking from this code to ENGINE is now a good
3341 deal more passive and at run-time, operations deal directly with
3342 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3343 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3344 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3345 they were not being used by the framework as there is no concept of a
3346 BIGNUM_METHOD and they could not be generalised to the new
3347 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3348 ENGINE_cpy() has been removed as it cannot be consistently defined in
3352 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3355 *) Change mkdef.pl to sort symbols that get the same entry number,
3356 and make sure the automatically generated functions ERR_load_*
3357 become part of libeay.num as well.
3360 *) New function SSL_renegotiate_pending(). This returns true once
3361 renegotiation has been requested (either SSL_renegotiate() call
3362 or HelloRequest/ClientHello receveived from the peer) and becomes
3363 false once a handshake has been completed.
3364 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3365 sends a HelloRequest, but does not ensure that a handshake takes
3366 place. SSL_renegotiate_pending() is useful for checking if the
3367 client has followed the request.)
3370 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3371 By default, clients may request session resumption even during
3372 renegotiation (if session ID contexts permit); with this option,
3373 session resumption is possible only in the first handshake.
3375 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3376 more bits available for options that should not be part of
3377 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3380 *) Add some demos for certificate and certificate request creation.
3383 *) Make maximum certificate chain size accepted from the peer application
3384 settable (SSL*_get/set_max_cert_list()), as proposed by
3385 "Douglas E. Engert" <deengert@anl.gov>.
3388 *) Add support for shared libraries for Unixware-7
3389 (Boyd Lynn Gerber <gerberb@zenez.com>).
3392 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3393 be done prior to destruction. Use this to unload error strings from
3394 ENGINEs that load their own error strings. NB: This adds two new API
3395 functions to "get" and "set" this destroy handler in an ENGINE.
3398 *) Alter all existing ENGINE implementations (except "openssl" and
3399 "openbsd") to dynamically instantiate their own error strings. This
3400 makes them more flexible to be built both as statically-linked ENGINEs
3401 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3402 Also, add stub code to each that makes building them as self-contained
3403 shared-libraries easier (see README.ENGINE).
3406 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3407 implementations into applications that are completely implemented in
3408 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3409 commands that can be used to configure what shared-library to load and
3410 to control aspects of the way it is handled. Also, made an update to
3411 the README.ENGINE file that brings its information up-to-date and
3412 provides some information and instructions on the "dynamic" ENGINE
3413 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3416 *) Make it possible to unload ranges of ERR strings with a new
3417 "ERR_unload_strings" function.
3420 *) Add a copy() function to EVP_MD.
3423 *) Make EVP_MD routines take a context pointer instead of just the
3424 md_data void pointer.
3427 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3428 that the digest can only process a single chunk of data
3429 (typically because it is provided by a piece of
3430 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3431 is only going to provide a single chunk of data, and hence the
3432 framework needn't accumulate the data for oneshot drivers.
3435 *) As with "ERR", make it possible to replace the underlying "ex_data"
3436 functions. This change also alters the storage and management of global
3437 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3438 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3439 index counters. The API functions that use this state have been changed
3440 to take a "class_index" rather than pointers to the class's local STACK
3441 and counter, and there is now an API function to dynamically create new
3442 classes. This centralisation allows us to (a) plug a lot of the
3443 thread-safety problems that existed, and (b) makes it possible to clean
3444 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3445 such data would previously have always leaked in application code and
3446 workarounds were in place to make the memory debugging turn a blind eye
3447 to it. Application code that doesn't use this new function will still
3448 leak as before, but their memory debugging output will announce it now
3449 rather than letting it slide.
3451 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3452 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3453 has a return value to indicate success or failure.
3456 *) Make it possible to replace the underlying "ERR" functions such that the
3457 global state (2 LHASH tables and 2 locks) is only used by the "default"
3458 implementation. This change also adds two functions to "get" and "set"
3459 the implementation prior to it being automatically set the first time
3460 any other ERR function takes place. Ie. an application can call "get",
3461 pass the return value to a module it has just loaded, and that module
3462 can call its own "set" function using that value. This means the
3463 module's "ERR" operations will use (and modify) the error state in the
3464 application and not in its own statically linked copy of OpenSSL code.
3467 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3468 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3469 the operation, and provides a more encapsulated way for external code
3470 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3471 to use these functions rather than manually incrementing the counts.
3473 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3476 *) Add EVP test program.
3479 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3482 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3483 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3484 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3485 These allow a CRL to be built without having to access X509_CRL fields
3486 directly. Modify 'ca' application to use new functions.
3489 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3490 bug workarounds. Rollback attack detection is a security feature.
3491 The problem will only arise on OpenSSL servers when TLSv1 is not
3492 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3493 Software authors not wanting to support TLSv1 will have special reasons
3494 for their choice and can explicitly enable this option.
3495 [Bodo Moeller, Lutz Jaenicke]
3497 *) Rationalise EVP so it can be extended: don't include a union of
3498 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3499 (similar to those existing for EVP_CIPHER_CTX).
3504 EVP_MD_CTX_init(&md); /* new function call */
3505 EVP_DigestInit(&md, EVP_sha1());
3506 EVP_DigestUpdate(&md, in, len);
3507 EVP_DigestFinal(&md, out, NULL);
3508 EVP_MD_CTX_cleanup(&md); /* new function call */
3512 *) Make DES key schedule conform to the usual scheme, as well as
3513 correcting its structure. This means that calls to DES functions
3514 now have to pass a pointer to a des_key_schedule instead of a
3515 plain des_key_schedule (which was actually always a pointer
3518 des_key_schedule ks;
3520 des_set_key_checked(..., &ks);
3521 des_ncbc_encrypt(..., &ks, ...);
3523 (Note that a later change renames 'des_...' into 'DES_...'.)
3526 *) Initial reduction of linker bloat: the use of some functions, such as
3527 PEM causes large amounts of unused functions to be linked in due to
3528 poor organisation. For example pem_all.c contains every PEM function
3529 which has a knock on effect of linking in large amounts of (unused)
3530 ASN1 code. Grouping together similar functions and splitting unrelated
3531 functions prevents this.
3534 *) Cleanup of EVP macros.
3537 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3538 correct _ecb suffix.
3541 *) Add initial OCSP responder support to ocsp application. The
3542 revocation information is handled using the text based index
3543 use by the ca application. The responder can either handle
3544 requests generated internally, supplied in files (for example
3545 via a CGI script) or using an internal minimal server.
3548 *) Add configuration choices to get zlib compression for TLS.
3551 *) Changes to Kerberos SSL for RFC 2712 compliance:
3552 1. Implemented real KerberosWrapper, instead of just using
3553 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3554 2. Implemented optional authenticator field of KerberosWrapper.
3556 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3557 and authenticator structs; see crypto/krb5/.
3559 Generalized Kerberos calls to support multiple Kerberos libraries.
3560 [Vern Staats <staatsvr@asc.hpc.mil>,
3561 Jeffrey Altman <jaltman@columbia.edu>
3562 via Richard Levitte]
3564 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3565 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3566 values for each of the key sizes rather than having just
3567 parameters (and 'speed' generating keys each time).
3570 *) Speed up EVP routines.
3573 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3574 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3575 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3576 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3578 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3579 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3580 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3583 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3585 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3588 *) Added the OS2-EMX target.
3589 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3591 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3592 to support NCONF routines in extension code. New function CONF_set_nconf()
3593 to allow functions which take an NCONF to also handle the old LHASH
3594 structure: this means that the old CONF compatible routines can be
3595 retained (in particular wrt extensions) without having to duplicate the
3596 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3599 *) Enhance the general user interface with mechanisms for inner control
3600 and with possibilities to have yes/no kind of prompts.
3603 *) Change all calls to low level digest routines in the library and
3604 applications to use EVP. Add missing calls to HMAC_cleanup() and
3605 don't assume HMAC_CTX can be copied using memcpy().
3606 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3608 *) Add the possibility to control engines through control names but with
3609 arbitrary arguments instead of just a string.
3610 Change the key loaders to take a UI_METHOD instead of a callback
3611 function pointer. NOTE: this breaks binary compatibility with earlier
3612 versions of OpenSSL [engine].
3613 Adapt the nCipher code for these new conditions and add a card insertion
3617 *) Enhance the general user interface with mechanisms to better support
3618 dialog box interfaces, application-defined prompts, the possibility
3619 to use defaults (for example default passwords from somewhere else)
3620 and interrupts/cancellations.
3623 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3624 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3627 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3628 tidy up some unnecessarily weird code in 'sk_new()').
3629 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3631 *) Change the key loading routines for ENGINEs to use the same kind
3632 callback (pem_password_cb) as all other routines that need this
3636 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3637 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3638 than this minimum value is recommended.
3641 *) New random seeder for OpenVMS, using the system process statistics
3642 that are easily reachable.
3645 *) Windows apparently can't transparently handle global
3646 variables defined in DLLs. Initialisations such as:
3648 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3650 wont compile. This is used by the any applications that need to
3651 declare their own ASN1 modules. This was fixed by adding the option
3652 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3653 needed for static libraries under Win32.
3656 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3657 setting of purpose and trust fields. New X509_STORE trust and
3658 purpose functions and tidy up setting in other SSL functions.
3661 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3662 structure. These are inherited by X509_STORE_CTX when it is
3663 initialised. This allows various defaults to be set in the
3664 X509_STORE structure (such as flags for CRL checking and custom
3665 purpose or trust settings) for functions which only use X509_STORE_CTX
3666 internally such as S/MIME.
3668 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3669 trust settings if they are not set in X509_STORE. This allows X509_STORE
3670 purposes and trust (in S/MIME for example) to override any set by default.
3672 Add command line options for CRL checking to smime, s_client and s_server
3676 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3677 are set then the CRL is looked up in the X509_STORE structure and
3678 its validity and signature checked, then if the certificate is found
3679 in the CRL the verify fails with a revoked error.
3681 Various new CRL related callbacks added to X509_STORE_CTX structure.
3683 Command line options added to 'verify' application to support this.
3685 This needs some additional work, such as being able to handle multiple
3686 CRLs with different times, extension based lookup (rather than just
3687 by subject name) and ultimately more complete V2 CRL extension
3691 *) Add a general user interface API (crypto/ui/). This is designed
3692 to replace things like des_read_password and friends (backward
3693 compatibility functions using this new API are provided).
3694 The purpose is to remove prompting functions from the DES code
3695 section as well as provide for prompting through dialog boxes in
3696 a window system and the like.
3699 *) Add "ex_data" support to ENGINE so implementations can add state at a
3700 per-structure level rather than having to store it globally.
3703 *) Make it possible for ENGINE structures to be copied when retrieved by
3704 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3705 This causes the "original" ENGINE structure to act like a template,
3706 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3707 operational state can be localised to each ENGINE structure, despite the
3708 fact they all share the same "methods". New ENGINE structures returned in
3709 this case have no functional references and the return value is the single
3710 structural reference. This matches the single structural reference returned
3711 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3715 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3716 needs to match any other type at all we need to manually clear the
3720 *) Changes to the "openssl engine" utility to include;
3721 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3722 about an ENGINE's available control commands.
3723 - executing control commands from command line arguments using the
3724 '-pre' and '-post' switches. '-post' is only used if '-t' is
3725 specified and the ENGINE is successfully initialised. The syntax for
3726 the individual commands are colon-separated, for example;
3727 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3730 *) New dynamic control command support for ENGINEs. ENGINEs can now
3731 declare their own commands (numbers), names (strings), descriptions,
3732 and input types for run-time discovery by calling applications. A
3733 subset of these commands are implicitly classed as "executable"
3734 depending on their input type, and only these can be invoked through
3735 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3736 can be based on user input, config files, etc). The distinction is
3737 that "executable" commands cannot return anything other than a boolean
3738 result and can only support numeric or string input, whereas some
3739 discoverable commands may only be for direct use through
3740 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3741 pointers, or other custom uses. The "executable" commands are to
3742 support parameterisations of ENGINE behaviour that can be
3743 unambiguously defined by ENGINEs and used consistently across any
3744 OpenSSL-based application. Commands have been added to all the
3745 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3746 control over shared-library paths without source code alterations.
3749 *) Changed all ENGINE implementations to dynamically allocate their
3750 ENGINEs rather than declaring them statically. Apart from this being
3751 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3752 this also allows the implementations to compile without using the
3753 internal engine_int.h header.
3756 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3757 'const' value. Any code that should be able to modify a RAND_METHOD
3758 should already have non-const pointers to it (ie. they should only
3759 modify their own ones).
3762 *) Made a variety of little tweaks to the ENGINE code.
3763 - "atalla" and "ubsec" string definitions were moved from header files
3764 to C code. "nuron" string definitions were placed in variables
3765 rather than hard-coded - allowing parameterisation of these values
3766 later on via ctrl() commands.
3767 - Removed unused "#if 0"'d code.
3768 - Fixed engine list iteration code so it uses ENGINE_free() to release
3769 structural references.
3770 - Constified the RAND_METHOD element of ENGINE structures.
3771 - Constified various get/set functions as appropriate and added
3772 missing functions (including a catch-all ENGINE_cpy that duplicates
3773 all ENGINE values onto a new ENGINE except reference counts/state).
3774 - Removed NULL parameter checks in get/set functions. Setting a method
3775 or function to NULL is a way of cancelling out a previously set
3776 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3777 and doesn't justify the extra error symbols and code.
3778 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3779 flags from engine_int.h to engine.h.
3780 - Changed prototypes for ENGINE handler functions (init(), finish(),
3781 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3784 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3785 to the algorithm using long division. The binary algorithm can be
3786 used only if the modulus is odd. On 32-bit systems, it is faster
3787 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3788 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3789 up to 450 bits. In 64-bit environments, the binary algorithm
3790 appears to be advantageous for much longer moduli; here we use it
3791 for moduli up to 2048 bits.
3794 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3795 could not support the combine flag in choice fields.
3798 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3799 extensions from a certificate request to the certificate.
3802 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3803 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3804 file: this allows the display of the certificate about to be
3805 signed to be customised, to allow certain fields to be included
3806 or excluded and extension details. The old system didn't display
3807 multicharacter strings properly, omitted fields not in the policy
3808 and couldn't display additional details such as extensions.
3811 *) Function EC_POINTs_mul for multiple scalar multiplication
3812 of an arbitrary number of elliptic curve points
3813 \sum scalars[i]*points[i],
3814 optionally including the generator defined for the EC_GROUP:
3815 scalar*generator + \sum scalars[i]*points[i].
3817 EC_POINT_mul is a simple wrapper function for the typical case
3818 that the point list has just one item (besides the optional
3822 *) First EC_METHODs for curves over GF(p):
3824 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3825 operations and provides various method functions that can also
3826 operate with faster implementations of modular arithmetic.
3828 EC_GFp_mont_method() reuses most functions that are part of
3829 EC_GFp_simple_method, but uses Montgomery arithmetic.
3831 [Bodo Moeller; point addition and point doubling
3832 implementation directly derived from source code provided by
3833 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3835 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3836 crypto/ec/ec_lib.c):
3838 Curves are EC_GROUP objects (with an optional group generator)
3839 based on EC_METHODs that are built into the library.
3841 Points are EC_POINT objects based on EC_GROUP objects.
3843 Most of the framework would be able to handle curves over arbitrary
3844 finite fields, but as there are no obvious types for fields other
3845 than GF(p), some functions are limited to that for now.
3848 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3849 that the file contains a complete HTTP response.
3852 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3853 change the def and num file printf format specifier from "%-40sXXX"
3854 to "%-39s XXX". The latter will always guarantee a space after the
3855 field while the former will cause them to run together if the field
3856 is 40 of more characters long.
3859 *) Constify the cipher and digest 'method' functions and structures
3860 and modify related functions to take constant EVP_MD and EVP_CIPHER
3864 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3865 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3868 *) Modify EVP_Digest*() routines so they now return values. Although the
3869 internal software routines can never fail additional hardware versions
3873 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3875 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3876 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3879 ERR_R_NESTED_ASN1_ERROR
3881 ERR_R_MISSING_ASN1_EOS
3882 were 4 .. 9, conflicting with
3883 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3885 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3886 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3888 Add new error code 'ERR_R_INTERNAL_ERROR'.
3891 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3895 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3896 sets the subject name for a new request or supersedes the
3897 subject name in a given request. Formats that can be parsed are
3898 'CN=Some Name, OU=myOU, C=IT'
3900 'CN=Some Name/OU=myOU/C=IT'.
3902 Add options '-batch' and '-verbose' to 'openssl req'.
3903 [Massimiliano Pala <madwolf@hackmasters.net>]
3905 *) Introduce the possibility to access global variables through
3906 functions on platform were that's the best way to handle exporting
3907 global variables in shared libraries. To enable this functionality,
3908 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3909 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3910 is normally done by Configure or something similar).
3912 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3913 in the source file (foo.c) like this:
3915 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3916 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3918 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3919 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3921 OPENSSL_DECLARE_GLOBAL(int,foo);
3922 #define foo OPENSSL_GLOBAL_REF(foo)
3923 OPENSSL_DECLARE_GLOBAL(double,bar);
3924 #define bar OPENSSL_GLOBAL_REF(bar)
3926 The #defines are very important, and therefore so is including the
3927 header file everywhere where the defined globals are used.
3929 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3930 of ASN.1 items, but that structure is a bit different.
3932 The largest change is in util/mkdef.pl which has been enhanced with
3933 better and easier to understand logic to choose which symbols should
3934 go into the Windows .def files as well as a number of fixes and code
3935 cleanup (among others, algorithm keywords are now sorted
3936 lexicographically to avoid constant rewrites).
3939 *) In BN_div() keep a copy of the sign of 'num' before writing the
3940 result to 'rm' because if rm==num the value will be overwritten
3941 and produce the wrong result if 'num' is negative: this caused
3942 problems with BN_mod() and BN_nnmod().
3945 *) Function OCSP_request_verify(). This checks the signature on an
3946 OCSP request and verifies the signer certificate. The signer
3947 certificate is just checked for a generic purpose and OCSP request
3951 *) Add OCSP_check_validity() function to check the validity of OCSP
3952 responses. OCSP responses are prepared in real time and may only
3953 be a few seconds old. Simply checking that the current time lies
3954 between thisUpdate and nextUpdate max reject otherwise valid responses
3955 caused by either OCSP responder or client clock inaccuracy. Instead
3956 we allow thisUpdate and nextUpdate to fall within a certain period of
3957 the current time. The age of the response can also optionally be
3958 checked. Two new options -validity_period and -status_age added to
3962 *) If signature or public key algorithm is unrecognized print out its
3963 OID rather that just UNKNOWN.
3966 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3967 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3968 ID to be generated from the issuer certificate alone which can then be
3969 passed to OCSP_id_issuer_cmp().
3972 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3973 ASN1 modules to export functions returning ASN1_ITEM pointers
3974 instead of the ASN1_ITEM structures themselves. This adds several
3975 new macros which allow the underlying ASN1 function/structure to
3976 be accessed transparently. As a result code should not use ASN1_ITEM
3977 references directly (such as &X509_it) but instead use the relevant
3978 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3979 use of the new ASN1 code on platforms where exporting structures
3980 is problematical (for example in shared libraries) but exporting
3981 functions returning pointers to structures is not.
3984 *) Add support for overriding the generation of SSL/TLS session IDs.
3985 These callbacks can be registered either in an SSL_CTX or per SSL.
3986 The purpose of this is to allow applications to control, if they wish,
3987 the arbitrary values chosen for use as session IDs, particularly as it
3988 can be useful for session caching in multiple-server environments. A
3989 command-line switch for testing this (and any client code that wishes
3990 to use such a feature) has been added to "s_server".
3991 [Geoff Thorpe, Lutz Jaenicke]
3993 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3994 of the form '#if defined(...) || defined(...) || ...' and
3995 '#if !defined(...) && !defined(...) && ...'. This also avoids
3996 the growing number of special cases it was previously handling.
3999 *) Make all configuration macros available for application by making
4000 sure they are available in opensslconf.h, by giving them names starting
4001 with "OPENSSL_" to avoid conflicts with other packages and by making
4002 sure e_os2.h will cover all platform-specific cases together with
4004 Additionally, it is now possible to define configuration/platform-
4005 specific names (called "system identities"). In the C code, these
4006 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4007 macro with the name beginning with "OPENSSL_SYS_", which is determined
4008 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4012 *) New option -set_serial to 'req' and 'x509' this allows the serial
4013 number to use to be specified on the command line. Previously self
4014 signed certificates were hard coded with serial number 0 and the
4015 CA options of 'x509' had to use a serial number in a file which was
4019 *) New options to 'ca' utility to support V2 CRL entry extensions.
4020 Currently CRL reason, invalidity date and hold instruction are
4021 supported. Add new CRL extensions to V3 code and some new objects.
4024 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4025 disable standard block padding (aka PKCS#5 padding) in the EVP
4026 API, which was previously mandatory. This means that the data is
4027 not padded in any way and so the total length much be a multiple
4028 of the block size, otherwise an error occurs.
4031 *) Initial (incomplete) OCSP SSL support.
4034 *) New function OCSP_parse_url(). This splits up a URL into its host,
4035 port and path components: primarily to parse OCSP URLs. New -url
4036 option to ocsp utility.
4039 *) New nonce behavior. The return value of OCSP_check_nonce() now
4040 reflects the various checks performed. Applications can decide
4041 whether to tolerate certain situations such as an absent nonce
4042 in a response when one was present in a request: the ocsp application
4043 just prints out a warning. New function OCSP_add1_basic_nonce()
4044 this is to allow responders to include a nonce in a response even if
4045 the request is nonce-less.
4048 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4049 skipped when using openssl x509 multiple times on a single input file,
4050 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4053 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4054 set string type: to handle setting ASN1_TIME structures. Fix ca
4055 utility to correctly initialize revocation date of CRLs.
4058 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4059 the clients preferred ciphersuites and rather use its own preferences.
4060 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4061 Internet Explorer by ensuring unchanged hash method during stepup.
4062 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4065 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4066 to aes and add a new 'exist' option to print out symbols that don't
4070 *) Additional options to ocsp utility to allow flags to be set and
4071 additional certificates supplied.
4074 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4075 OCSP client a number of certificate to only verify the response
4079 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4080 handle the new API. Currently only ECB, CBC modes supported. Add new
4083 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4084 Encryption Standard (AES) Ciphersuites for Transport Layer
4085 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4086 not enabled by default and were not part of the "ALL" ciphersuite
4087 alias because they were not yet official; they could be
4088 explicitly requested by specifying the "AESdraft" ciphersuite
4089 group alias. In the final release of OpenSSL 0.9.7, the group
4090 alias is called "AES" and is part of "ALL".)
4091 [Ben Laurie, Steve Henson, Bodo Moeller]
4093 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4094 request to response.
4097 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4098 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4099 extract information from a certificate request. OCSP_response_create()
4100 creates a response and optionally adds a basic response structure.
4101 OCSP_basic_add1_status() adds a complete single response to a basic
4102 response and returns the OCSP_SINGLERESP structure just added (to allow
4103 extensions to be included for example). OCSP_basic_add1_cert() adds a
4104 certificate to a basic response and OCSP_basic_sign() signs a basic
4105 response with various flags. New helper functions ASN1_TIME_check()
4106 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4107 (converts ASN1_TIME to GeneralizedTime).
4110 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4111 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4112 structure from a certificate. X509_pubkey_digest() digests the public_key
4113 contents: this is used in various key identifiers.
4116 *) Make sk_sort() tolerate a NULL argument.
4117 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4119 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4120 passed by the function are trusted implicitly. If any of them signed the
4121 response then it is assumed to be valid and is not verified.
4124 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4125 to data. This was previously part of the PKCS7 ASN1 code. This
4126 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4127 [Steve Henson, reported by Kenneth R. Robinette
4128 <support@securenetterm.com>]
4130 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4131 routines: without these tracing memory leaks is very painful.
4132 Fix leaks in PKCS12 and PKCS7 routines.
4135 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4136 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4137 effectively meant GeneralizedTime would never be used. Now it
4138 is initialised to -1 but X509_time_adj() now has to check the value
4139 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4140 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4141 [Steve Henson, reported by Kenneth R. Robinette
4142 <support@securenetterm.com>]
4144 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4145 result in a zero length in the ASN1_INTEGER structure which was
4146 not consistent with the structure when d2i_ASN1_INTEGER() was used
4147 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4148 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4149 where it did not print out a minus for negative ASN1_INTEGER.
4152 *) Add summary printout to ocsp utility. The various functions which
4153 convert status values to strings have been renamed to:
4154 OCSP_response_status_str(), OCSP_cert_status_str() and
4155 OCSP_crl_reason_str() and are no longer static. New options
4156 to verify nonce values and to disable verification. OCSP response
4157 printout format cleaned up.
4160 *) Add additional OCSP certificate checks. These are those specified
4161 in RFC2560. This consists of two separate checks: the CA of the
4162 certificate being checked must either be the OCSP signer certificate
4163 or the issuer of the OCSP signer certificate. In the latter case the
4164 OCSP signer certificate must contain the OCSP signing extended key
4165 usage. This check is performed by attempting to match the OCSP
4166 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4167 in the OCSP_CERTID structures of the response.
4170 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4171 and related routines. This uses the standard OpenSSL certificate
4172 verify routines to perform initial checks (just CA validity) and
4173 to obtain the certificate chain. Then additional checks will be
4174 performed on the chain. Currently the root CA is checked to see
4175 if it is explicitly trusted for OCSP signing. This is used to set
4176 a root CA as a global signing root: that is any certificate that
4177 chains to that CA is an acceptable OCSP signing certificate.
4180 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4181 extensions from a separate configuration file.
4182 As when reading extensions from the main configuration file,
4183 the '-extensions ...' option may be used for specifying the
4185 [Massimiliano Pala <madwolf@comune.modena.it>]
4187 *) New OCSP utility. Allows OCSP requests to be generated or
4188 read. The request can be sent to a responder and the output
4189 parsed, outputed or printed in text form. Not complete yet:
4190 still needs to check the OCSP response validity.
4193 *) New subcommands for 'openssl ca':
4194 'openssl ca -status <serial>' prints the status of the cert with
4195 the given serial number (according to the index file).
4196 'openssl ca -updatedb' updates the expiry status of certificates
4198 [Massimiliano Pala <madwolf@comune.modena.it>]
4200 *) New '-newreq-nodes' command option to CA.pl. This is like
4201 '-newreq', but calls 'openssl req' with the '-nodes' option
4202 so that the resulting key is not encrypted.
4203 [Damien Miller <djm@mindrot.org>]
4205 *) New configuration for the GNU Hurd.
4206 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4208 *) Initial code to implement OCSP basic response verify. This
4209 is currently incomplete. Currently just finds the signer's
4210 certificate and verifies the signature on the response.
4213 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4214 value of OPENSSLDIR. This is available via the new '-d' option
4215 to 'openssl version', and is also included in 'openssl version -a'.
4218 *) Allowing defining memory allocation callbacks that will be given
4219 file name and line number information in additional arguments
4220 (a const char* and an int). The basic functionality remains, as
4221 well as the original possibility to just replace malloc(),
4222 realloc() and free() by functions that do not know about these
4223 additional arguments. To register and find out the current
4224 settings for extended allocation functions, the following
4225 functions are provided:
4227 CRYPTO_set_mem_ex_functions
4228 CRYPTO_set_locked_mem_ex_functions
4229 CRYPTO_get_mem_ex_functions
4230 CRYPTO_get_locked_mem_ex_functions
4232 These work the same way as CRYPTO_set_mem_functions and friends.
4233 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4234 extended allocation function is enabled.
4235 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4236 a conventional allocation function is enabled.
4237 [Richard Levitte, Bodo Moeller]
4239 *) Finish off removing the remaining LHASH function pointer casts.
4240 There should no longer be any prototype-casting required when using
4241 the LHASH abstraction, and any casts that remain are "bugs". See
4242 the callback types and macros at the head of lhash.h for details
4243 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4246 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4247 If /dev/[u]random devices are not available or do not return enough
4248 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4250 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4251 /etc/entropy will be queried once each in this sequence, quering stops
4252 when enough entropy was collected without querying more sockets.
4255 *) Change the Unix RAND_poll() variant to be able to poll several
4256 random devices, as specified by DEVRANDOM, until a sufficient amount
4257 of data has been collected. We spend at most 10 ms on each file
4258 (select timeout) and read in non-blocking mode. DEVRANDOM now
4259 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4260 (previously it was just the string "/dev/urandom"), so on typical
4261 platforms the 10 ms delay will never occur.
4262 Also separate out the Unix variant to its own file, rand_unix.c.
4263 For VMS, there's a currently-empty rand_vms.c.
4266 *) Move OCSP client related routines to ocsp_cl.c. These
4267 provide utility functions which an application needing
4268 to issue a request to an OCSP responder and analyse the
4269 response will typically need: as opposed to those which an
4270 OCSP responder itself would need which will be added later.
4272 OCSP_request_sign() signs an OCSP request with an API similar
4273 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4274 response. OCSP_response_get1_basic() extracts basic response
4275 from response. OCSP_resp_find_status(): finds and extracts status
4276 information from an OCSP_CERTID structure (which will be created
4277 when the request structure is built). These are built from lower
4278 level functions which work on OCSP_SINGLERESP structures but
4279 wont normally be used unless the application wishes to examine
4280 extensions in the OCSP response for example.
4282 Replace nonce routines with a pair of functions.
4283 OCSP_request_add1_nonce() adds a nonce value and optionally
4284 generates a random value. OCSP_check_nonce() checks the
4285 validity of the nonce in an OCSP response.
4288 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4289 This doesn't copy the supplied OCSP_CERTID and avoids the
4290 need to free up the newly created id. Change return type
4291 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4292 This can then be used to add extensions to the request.
4293 Deleted OCSP_request_new(), since most of its functionality
4294 is now in OCSP_REQUEST_new() (and the case insensitive name
4295 clash) apart from the ability to set the request name which
4296 will be added elsewhere.
4299 *) Update OCSP API. Remove obsolete extensions argument from
4300 various functions. Extensions are now handled using the new
4301 OCSP extension code. New simple OCSP HTTP function which
4302 can be used to send requests and parse the response.
4305 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4306 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4307 uses the special reorder version of SET OF to sort the attributes
4308 and reorder them to match the encoded order. This resolves a long
4309 standing problem: a verify on a PKCS7 structure just after signing
4310 it used to fail because the attribute order did not match the
4311 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4312 it uses the received order. This is necessary to tolerate some broken
4313 software that does not order SET OF. This is handled by encoding
4314 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4315 to produce the required SET OF.
4318 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4319 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4320 files to get correct declarations of the ASN.1 item variables.
4323 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4324 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4325 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4326 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4327 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4328 ASN1_ITEM and no wrapper functions.
4331 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4332 replace the old function pointer based I/O routines. Change most of
4333 the *_d2i_bio() and *_d2i_fp() functions to use these.
4336 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4337 lines, recognice more "algorithms" that can be deselected, and make
4338 it complain about algorithm deselection that isn't recognised.
4341 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4342 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4343 to use new functions. Add NO_ASN1_OLD which can be set to remove
4344 some old style ASN1 functions: this can be used to determine if old
4345 code will still work when these eventually go away.
4348 *) New extension functions for OCSP structures, these follow the
4349 same conventions as certificates and CRLs.
4352 *) New function X509V3_add1_i2d(). This automatically encodes and
4353 adds an extension. Its behaviour can be customised with various
4354 flags to append, replace or delete. Various wrappers added for
4355 certifcates and CRLs.
4358 *) Fix to avoid calling the underlying ASN1 print routine when
4359 an extension cannot be parsed. Correct a typo in the
4360 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4363 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4364 entries for variables.
4367 *) Add functionality to apps/openssl.c for detecting locking
4368 problems: As the program is single-threaded, all we have
4369 to do is register a locking callback using an array for
4370 storing which locks are currently held by the program.
4373 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4374 SSL_get_ex_data_X509_STORE_idx(), which is used in
4375 ssl_verify_cert_chain() and thus can be called at any time
4376 during TLS/SSL handshakes so that thread-safety is essential.
4377 Unfortunately, the ex_data design is not at all suited
4378 for multi-threaded use, so it probably should be abolished.
4381 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4382 [Broadcom, tweaked and integrated by Geoff Thorpe]
4384 *) Move common extension printing code to new function
4385 X509V3_print_extensions(). Reorganise OCSP print routines and
4386 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4389 *) New function X509_signature_print() to remove duplication in some
4393 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4394 set (this was treated exactly the same as SET OF previously). This
4395 is used to reorder the STACK representing the structure to match the
4396 encoding. This will be used to get round a problem where a PKCS7
4397 structure which was signed could not be verified because the STACK
4398 order did not reflect the encoded order.
4401 *) Reimplement the OCSP ASN1 module using the new code.
4404 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4405 for its ASN1 operations. The old style function pointers still exist
4406 for now but they will eventually go away.
4409 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4410 completely replaces the old ASN1 functionality with a table driven
4411 encoder and decoder which interprets an ASN1_ITEM structure describing
4412 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4413 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4414 has also been converted to the new form.
4417 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4418 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4419 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4420 for negative moduli.
4423 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4424 of not touching the result's sign bit.
4427 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4431 *) Changed the LHASH code to use prototypes for callbacks, and created
4432 macros to declare and implement thin (optionally static) functions
4433 that provide type-safety and avoid function pointer casting for the
4434 type-specific callbacks.
4437 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4439 [Veers Staats <staatsvr@asc.hpc.mil>,
4440 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4442 *) Reformat the FAQ so the different questions and answers can be divided
4443 in sections depending on the subject.
4446 *) Have the zlib compression code load ZLIB.DLL dynamically under
4450 *) New function BN_mod_sqrt for computing square roots modulo a prime
4451 (using the probabilistic Tonelli-Shanks algorithm unless
4452 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4453 be handled deterministically).
4454 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4456 *) Make BN_mod_inverse faster by explicitly handling small quotients
4457 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4458 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4461 *) New function BN_kronecker.
4464 *) Fix BN_gcd so that it works on negative inputs; the result is
4465 positive unless both parameters are zero.
4466 Previously something reasonably close to an infinite loop was
4467 possible because numbers could be growing instead of shrinking
4468 in the implementation of Euclid's algorithm.
4471 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4472 sign of the number in question.
4474 Fix BN_is_word(a,w) to work correctly for w == 0.
4476 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4477 because its test if the absolute value of 'a' equals 'w'.
4478 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4479 it exists mostly for use in the implementations of BN_is_zero(),
4480 BN_is_one(), and BN_is_word().
4483 *) New function BN_swap.
4486 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4487 the exponentiation functions are more likely to produce reasonable
4488 results on negative inputs.
4491 *) Change BN_mod_mul so that the result is always non-negative.
4492 Previously, it could be negative if one of the factors was negative;
4493 I don't think anyone really wanted that behaviour.
4496 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4497 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4498 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4499 and add new functions:
4508 BN_mod_lshift1_quick
4512 These functions always generate non-negative results.
4514 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4515 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4517 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4518 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4519 be reduced modulo m.
4520 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4523 The following entry accidentily appeared in the CHANGES file
4524 distributed with OpenSSL 0.9.7. The modifications described in
4525 it do *not* apply to OpenSSL 0.9.7.
4527 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4528 was actually never needed) and in BN_mul(). The removal in BN_mul()
4529 required a small change in bn_mul_part_recursive() and the addition
4530 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4531 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4532 bn_sub_words() and bn_add_words() except they take arrays with
4537 *) In 'openssl passwd', verify passwords read from the terminal
4538 unless the '-salt' option is used (which usually means that
4539 verification would just waste user's time since the resulting
4540 hash is going to be compared with some given password hash)
4541 or the new '-noverify' option is used.
4543 This is an incompatible change, but it does not affect
4544 non-interactive use of 'openssl passwd' (passwords on the command
4545 line, '-stdin' option, '-in ...' option) and thus should not
4549 *) Remove all references to RSAref, since there's no more need for it.
4552 *) Make DSO load along a path given through an environment variable
4553 (SHLIB_PATH) with shl_load().
4556 *) Constify the ENGINE code as a result of BIGNUM constification.
4557 Also constify the RSA code and most things related to it. In a
4558 few places, most notable in the depth of the ASN.1 code, ugly
4559 casts back to non-const were required (to be solved at a later
4563 *) Make it so the openssl application has all engines loaded by default.
4566 *) Constify the BIGNUM routines a little more.
4569 *) Add the following functions:
4571 ENGINE_load_cswift()
4573 ENGINE_load_atalla()
4575 ENGINE_load_builtin_engines()
4577 That way, an application can itself choose if external engines that
4578 are built-in in OpenSSL shall ever be used or not. The benefit is
4579 that applications won't have to be linked with libdl or other dso
4580 libraries unless it's really needed.
4582 Changed 'openssl engine' to load all engines on demand.
4583 Changed the engine header files to avoid the duplication of some
4584 declarations (they differed!).
4587 *) 'openssl engine' can now list capabilities.
4590 *) Better error reporting in 'openssl engine'.
4593 *) Never call load_dh_param(NULL) in s_server.
4596 *) Add engine application. It can currently list engines by name and
4597 identity, and test if they are actually available.
4600 *) Improve RPM specification file by forcing symbolic linking and making
4601 sure the installed documentation is also owned by root.root.
4602 [Damien Miller <djm@mindrot.org>]
4604 *) Give the OpenSSL applications more possibilities to make use of
4605 keys (public as well as private) handled by engines.
4608 *) Add OCSP code that comes from CertCo.
4611 *) Add VMS support for the Rijndael code.
4614 *) Added untested support for Nuron crypto accelerator.
4617 *) Add support for external cryptographic devices. This code was
4618 previously distributed separately as the "engine" branch.
4619 [Geoff Thorpe, Richard Levitte]
4621 *) Rework the filename-translation in the DSO code. It is now possible to
4622 have far greater control over how a "name" is turned into a filename
4623 depending on the operating environment and any oddities about the
4624 different shared library filenames on each system.
4627 *) Support threads on FreeBSD-elf in Configure.
4630 *) Fix for SHA1 assembly problem with MASM: it produces
4631 warnings about corrupt line number information when assembling
4632 with debugging information. This is caused by the overlapping
4634 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4637 NCONF_get_number() has no error checking at all. As a replacement,
4638 NCONF_get_number_e() is defined (_e for "error checking") and is
4639 promoted strongly. The old NCONF_get_number is kept around for
4640 binary backward compatibility.
4641 Make it possible for methods to load from something other than a BIO,
4642 by providing a function pointer that is given a name instead of a BIO.
4643 For example, this could be used to load configuration data from an
4647 *) Fix for non blocking accept BIOs. Added new I/O special reason
4648 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4649 with non blocking I/O was not possible because no retry code was
4650 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4654 *) Added the beginnings of Rijndael support.
4657 *) Fix for bug in DirectoryString mask setting. Add support for
4658 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4659 to allow certificate printing to more controllable, additional
4660 'certopt' option to 'x509' to allow new printing options to be
4664 *) Clean old EAY MD5 hack from e_os.h.
4667 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4669 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4670 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4671 [Joe Orton, Steve Henson]
4673 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4675 *) Fix additional bug revealed by the NISCC test suite:
4677 Stop bug triggering large recursion when presented with
4678 certain ASN.1 tags (CVE-2003-0851)
4681 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4683 *) Fix various bugs revealed by running the NISCC test suite:
4685 Stop out of bounds reads in the ASN1 code when presented with
4686 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4688 If verify callback ignores invalid public key errors don't try to check
4689 certificate signature with the NULL public key.
4693 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4694 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4698 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4699 extra data after the compression methods not only for TLS 1.0
4700 but also for SSL 3.0 (as required by the specification).
4701 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4703 *) Change X509_certificate_type() to mark the key as exported/exportable
4704 when it's 512 *bits* long, not 512 bytes.
4707 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4709 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4710 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4711 a protocol version number mismatch like a decryption error
4712 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4715 *) Turn on RSA blinding by default in the default implementation
4716 to avoid a timing attack. Applications that don't want it can call
4717 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4718 They would be ill-advised to do so in most cases.
4719 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4721 *) Change RSA blinding code so that it works when the PRNG is not
4722 seeded (in this case, the secret RSA exponent is abused as
4723 an unpredictable seed -- if it is not unpredictable, there
4724 is no point in blinding anyway). Make RSA blinding thread-safe
4725 by remembering the creator's thread ID in rsa->blinding and
4726 having all other threads use local one-time blinding factors
4727 (this requires more computation than sharing rsa->blinding, but
4728 avoids excessive locking; and if an RSA object is not shared
4729 between threads, blinding will still be very fast).
4732 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4734 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4735 via timing by performing a MAC computation even if incorrrect
4736 block cipher padding has been found. This is a countermeasure
4737 against active attacks where the attacker has to distinguish
4738 between bad padding and a MAC verification error. (CVE-2003-0078)
4740 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4741 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4742 Martin Vuagnoux (EPFL, Ilion)]
4744 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4746 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4747 memory from it's contents. This is done with a counter that will
4748 place alternating values in each byte. This can be used to solve
4749 two issues: 1) the removal of calls to memset() by highly optimizing
4750 compilers, and 2) cleansing with other values than 0, since those can
4751 be read through on certain media, for example a swap space on disk.
4754 *) Bugfix: client side session caching did not work with external caching,
4755 because the session->cipher setting was not restored when reloading
4756 from the external cache. This problem was masked, when
4757 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4758 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4761 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4762 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4763 [Zeev Lieber <zeev-l@yahoo.com>]
4765 *) Undo an undocumented change introduced in 0.9.6e which caused
4766 repeated calls to OpenSSL_add_all_ciphers() and
4767 OpenSSL_add_all_digests() to be ignored, even after calling
4771 *) Change the default configuration reader to deal with last line not
4772 being properly terminated.
4775 *) Change X509_NAME_cmp() so it applies the special rules on handling
4776 DN values that are of type PrintableString, as well as RDNs of type
4777 emailAddress where the value has the type ia5String.
4778 [stefank@valicert.com via Richard Levitte]
4780 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4781 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4782 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4783 the bitwise-OR of the two for use by the majority of applications
4784 wanting this behaviour, and update the docs. The documented
4785 behaviour and actual behaviour were inconsistent and had been
4786 changing anyway, so this is more a bug-fix than a behavioural
4788 [Geoff Thorpe, diagnosed by Nadav Har'El]
4790 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4791 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4794 *) Fix initialization code race conditions in
4795 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4796 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4797 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4798 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4799 ssl2_get_cipher_by_char(),
4800 ssl3_get_cipher_by_char().
4801 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4803 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4804 the cached sessions are flushed, as the remove_cb() might use ex_data
4805 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4806 (see [openssl.org #212]).
4807 [Geoff Thorpe, Lutz Jaenicke]
4809 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4810 length, instead of the encoding length to d2i_ASN1_OBJECT.
4813 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4815 *) [In 0.9.6g-engine release:]
4816 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4817 [Lynn Gazis <lgazis@rainbow.com>]
4819 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4821 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4822 and get fix the header length calculation.
4823 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4824 Alon Kantor <alonk@checkpoint.com> (and others),
4827 *) Use proper error handling instead of 'assertions' in buffer
4828 overflow checks added in 0.9.6e. This prevents DoS (the
4829 assertions could call abort()).
4830 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4832 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4834 *) Add various sanity checks to asn1_get_length() to reject
4835 the ASN1 length bytes if they exceed sizeof(long), will appear
4836 negative or the content length exceeds the length of the
4838 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4840 *) Fix cipher selection routines: ciphers without encryption had no flags
4841 for the cipher strength set and where therefore not handled correctly
4842 by the selection routines (PR #130).
4845 *) Fix EVP_dsa_sha macro.
4849 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4850 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4851 that was added in OpenSSL 0.9.6d.
4853 As the countermeasure turned out to be incompatible with some
4854 broken SSL implementations, the new option is part of SSL_OP_ALL.
4855 SSL_OP_ALL is usually employed when compatibility with weird SSL
4856 implementations is desired (e.g. '-bugs' option to 's_client' and
4857 's_server'), so the new option is automatically set in many
4861 *) Changes in security patch:
4863 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4864 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4865 Air Force Materiel Command, USAF, under agreement number
4868 *) Add various sanity checks to asn1_get_length() to reject
4869 the ASN1 length bytes if they exceed sizeof(long), will appear
4870 negative or the content length exceeds the length of the
4871 supplied buffer. (CVE-2002-0659)
4872 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4874 *) Assertions for various potential buffer overflows, not known to
4876 [Ben Laurie (CHATS)]
4878 *) Various temporary buffers to hold ASCII versions of integers were
4879 too small for 64 bit platforms. (CVE-2002-0655)
4880 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4882 *) Remote buffer overflow in SSL3 protocol - an attacker could
4883 supply an oversized session ID to a client. (CVE-2002-0656)
4884 [Ben Laurie (CHATS)]
4886 *) Remote buffer overflow in SSL2 protocol - an attacker could
4887 supply an oversized client master key. (CVE-2002-0656)
4888 [Ben Laurie (CHATS)]
4890 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4892 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4893 encoded as NULL) with id-dsa-with-sha1.
4894 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4896 *) Check various X509_...() return values in apps/req.c.
4897 [Nils Larsch <nla@trustcenter.de>]
4899 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4900 an end-of-file condition would erronously be flagged, when the CRLF
4901 was just at the end of a processed block. The bug was discovered when
4902 processing data through a buffering memory BIO handing the data to a
4903 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4904 <ptsekov@syntrex.com> and Nedelcho Stanev.
4907 *) Implement a countermeasure against a vulnerability recently found
4908 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4909 before application data chunks to avoid the use of known IVs
4910 with data potentially chosen by the attacker.
4913 *) Fix length checks in ssl3_get_client_hello().
4916 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4917 to prevent ssl3_read_internal() from incorrectly assuming that
4918 ssl3_read_bytes() found application data while handshake
4919 processing was enabled when in fact s->s3->in_read_app_data was
4920 merely automatically cleared during the initial handshake.
4921 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4923 *) Fix object definitions for Private and Enterprise: they were not
4924 recognized in their shortname (=lowercase) representation. Extend
4925 obj_dat.pl to issue an error when using undefined keywords instead
4926 of silently ignoring the problem (Svenning Sorensen
4927 <sss@sss.dnsalias.net>).
4930 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4931 generators, i.e. generators other than 2 and 5. (Previously, the
4932 code did not properly initialise the 'add' and 'rem' values to
4933 BN_generate_prime().)
4935 In the new general case, we do not insist that 'generator' is
4936 actually a primitive root: This requirement is rather pointless;
4937 a generator of the order-q subgroup is just as good, if not
4941 *) Map new X509 verification errors to alerts. Discovered and submitted by
4942 Tom Wu <tom@arcot.com>.
4945 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4946 returning non-zero before the data has been completely received
4947 when using non-blocking I/O.
4948 [Bodo Moeller; problem pointed out by John Hughes]
4950 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4951 [Ben Laurie, Lutz Jaenicke]
4953 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4954 Yoram Zahavi <YoramZ@gilian.com>).
4957 *) Add information about CygWin 1.3 and on, and preserve proper
4958 configuration for the versions before that.
4959 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4961 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4962 check whether we deal with a copy of a session and do not delete from
4963 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4964 <izhar@checkpoint.com>.
4967 *) Do not store session data into the internal session cache, if it
4968 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4969 flag is set). Proposed by Aslam <aslam@funk.com>.
4972 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4976 *) [In 0.9.6d-engine release:]
4977 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4978 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4980 *) Add the configuration target linux-s390x.
4981 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4983 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4984 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4985 variable as an indication that a ClientHello message has been
4986 received. As the flag value will be lost between multiple
4987 invocations of ssl3_accept when using non-blocking I/O, the
4988 function may not be aware that a handshake has actually taken
4989 place, thus preventing a new session from being added to the
4992 To avoid this problem, we now set s->new_session to 2 instead of
4993 using a local variable.
4994 [Lutz Jaenicke, Bodo Moeller]
4996 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4997 if the SSL_R_LENGTH_MISMATCH error is detected.
4998 [Geoff Thorpe, Bodo Moeller]
5000 *) New 'shared_ldflag' column in Configure platform table.
5003 *) Fix EVP_CIPHER_mode macro.
5004 ["Dan S. Camper" <dan@bti.net>]
5006 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5007 type, we must throw them away by setting rr->length to 0.
5008 [D P Chang <dpc@qualys.com>]
5010 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5012 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5013 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5014 worked incorrectly for those cases where range = 10..._2 and
5015 3*range is two bits longer than range.)
5018 *) Only add signing time to PKCS7 structures if it is not already
5022 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5023 OBJ_ld_ce should be OBJ_id_ce.
5024 Also some ip-pda OIDs in crypto/objects/objects.txt were
5025 incorrect (cf. RFC 3039).
5026 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5028 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5029 returns early because it has nothing to do.
5030 [Andy Schneider <andy.schneider@bjss.co.uk>]
5032 *) [In 0.9.6c-engine release:]
5033 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5034 [Andy Schneider <andy.schneider@bjss.co.uk>]
5036 *) [In 0.9.6c-engine release:]
5037 Add support for Cryptographic Appliance's keyserver technology.
5038 (Use engine 'keyclient')
5039 [Cryptographic Appliances and Geoff Thorpe]
5041 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5042 is called via tools/c89.sh because arguments have to be
5043 rearranged (all '-L' options must appear before the first object
5045 [Richard Shapiro <rshapiro@abinitio.com>]
5047 *) [In 0.9.6c-engine release:]
5048 Add support for Broadcom crypto accelerator cards, backported
5050 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5052 *) [In 0.9.6c-engine release:]
5053 Add support for SureWare crypto accelerator cards from
5054 Baltimore Technologies. (Use engine 'sureware')
5055 [Baltimore Technologies and Mark Cox]
5057 *) [In 0.9.6c-engine release:]
5058 Add support for crypto accelerator cards from Accelerated
5059 Encryption Processing, www.aep.ie. (Use engine 'aep')
5060 [AEP Inc. and Mark Cox]
5062 *) Add a configuration entry for gcc on UnixWare.
5063 [Gary Benson <gbenson@redhat.com>]
5065 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5066 messages are stored in a single piece (fixed-length part and
5067 variable-length part combined) and fix various bugs found on the way.
5070 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5071 instead. BIO_gethostbyname() does not know what timeouts are
5072 appropriate, so entries would stay in cache even when they have
5074 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5076 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5077 faced with a pathologically small ClientHello fragment that does
5078 not contain client_version: Instead of aborting with an error,
5079 simply choose the highest available protocol version (i.e.,
5080 TLS 1.0 unless it is disabled). In practice, ClientHello
5081 messages are never sent like this, but this change gives us
5082 strictly correct behaviour at least for TLS.
5085 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5086 never resets s->method to s->ctx->method when called from within
5087 one of the SSL handshake functions.
5088 [Bodo Moeller; problem pointed out by Niko Baric]
5090 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5091 (sent using the client's version number) if client_version is
5092 smaller than the protocol version in use. Also change
5093 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5094 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5095 the client will at least see that alert.
5098 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5102 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5103 client receives HelloRequest while in a handshake.
5104 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5106 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5107 should end in 'break', not 'goto end' which circuments various
5108 cleanups done in state SSL_ST_OK. But session related stuff
5109 must be disabled for SSL_ST_OK in the case that we just sent a
5112 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5113 before just sending a HelloRequest.
5114 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5116 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5117 reveal whether illegal block cipher padding was found or a MAC
5118 verification error occured. (Neither SSLerr() codes nor alerts
5119 are directly visible to potential attackers, but the information
5120 may leak via logfiles.)
5122 Similar changes are not required for the SSL 2.0 implementation
5123 because the number of padding bytes is sent in clear for SSL 2.0,
5124 and the extra bytes are just ignored. However ssl/s2_pkt.c
5125 failed to verify that the purported number of padding bytes is in
5129 *) Add OpenUNIX-8 support including shared libraries
5130 (Boyd Lynn Gerber <gerberb@zenez.com>).
5133 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5134 'wristwatch attack' using huge encoding parameters (cf.
5135 James H. Manger's CRYPTO 2001 paper). Note that the
5136 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5137 encoding parameters and hence was not vulnerable.
5140 *) BN_sqr() bug fix.
5141 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5143 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5144 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5145 followed by modular reduction.
5146 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5148 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5149 equivalent based on BN_pseudo_rand() instead of BN_rand().
5152 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5153 This function was broken, as the check for a new client hello message
5154 to handle SGC did not allow these large messages.
5155 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5158 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5161 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5162 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5165 *) Rework the configuration and shared library support for Tru64 Unix.
5166 The configuration part makes use of modern compiler features and
5167 still retains old compiler behavior for those that run older versions
5168 of the OS. The shared library support part includes a variant that
5169 uses the RPATH feature, and is available through the special
5170 configuration target "alpha-cc-rpath", which will never be selected
5172 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5174 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5175 with the same message size as in ssl3_get_certificate_request().
5176 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5177 messages might inadvertently be reject as too long.
5178 [Petr Lampa <lampa@fee.vutbr.cz>]
5180 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5183 *) Modified SSL library such that the verify_callback that has been set
5184 specificly for an SSL object with SSL_set_verify() is actually being
5185 used. Before the change, a verify_callback set with this function was
5186 ignored and the verify_callback() set in the SSL_CTX at the time of
5187 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5188 to allow the necessary settings.
5191 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5192 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5193 done automatically (in contradiction to the requirements of the C
5194 standard). This made problems when used from OpenSSH.
5197 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5198 dh->length and always used
5200 BN_rand_range(priv_key, dh->p).
5202 BN_rand_range() is not necessary for Diffie-Hellman, and this
5203 specific range makes Diffie-Hellman unnecessarily inefficient if
5204 dh->length (recommended exponent length) is much smaller than the
5205 length of dh->p. We could use BN_rand_range() if the order of
5206 the subgroup was stored in the DH structure, but we only have
5211 BN_rand(priv_key, l, ...)
5213 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5219 RSA_eay_public_encrypt
5220 RSA_eay_private_decrypt
5221 RSA_eay_private_encrypt (signing)
5222 RSA_eay_public_decrypt (signature verification)
5224 (default implementations for RSA_public_encrypt,
5225 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5226 always reject numbers >= n.
5229 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5230 to synchronize access to 'locking_thread'. This is necessary on
5231 systems where access to 'locking_thread' (an 'unsigned long'
5232 variable) is not atomic.
5235 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5236 *before* setting the 'crypto_lock_rand' flag. The previous code had
5237 a race condition if 0 is a valid thread ID.
5238 [Travis Vitek <vitek@roguewave.com>]
5240 *) Add support for shared libraries under Irix.
5241 [Albert Chin-A-Young <china@thewrittenword.com>]
5243 *) Add configuration option to build on Linux on both big-endian and
5245 [Ralf Baechle <ralf@uni-koblenz.de>]
5247 *) Add the possibility to create shared libraries on HP-UX.
5250 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5252 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5253 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5254 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5255 PRNG state recovery was possible based on the output of
5256 one PRNG request appropriately sized to gain knowledge on
5257 'md' followed by enough consecutive 1-byte PRNG requests
5258 to traverse all of 'state'.
5260 1. When updating 'md_local' (the current thread's copy of 'md')
5261 during PRNG output generation, hash all of the previous
5262 'md_local' value, not just the half used for PRNG output.
5264 2. Make the number of bytes from 'state' included into the hash
5265 independent from the number of PRNG bytes requested.
5267 The first measure alone would be sufficient to avoid
5268 Markku-Juhani's attack. (Actually it had never occurred
5269 to me that the half of 'md_local' used for chaining was the
5270 half from which PRNG output bytes were taken -- I had always
5271 assumed that the secret half would be used.) The second
5272 measure makes sure that additional data from 'state' is never
5273 mixed into 'md_local' in small portions; this heuristically
5274 further strengthens the PRNG.
5277 *) Fix crypto/bn/asm/mips3.s.
5280 *) When only the key is given to "enc", the IV is undefined. Print out
5281 an error message in this case.
5284 *) Handle special case when X509_NAME is empty in X509 printing routines.
5287 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5288 positive and less than q.
5291 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5292 used: it isn't thread safe and the add_lock_callback should handle
5294 [Paul Rose <Paul.Rose@bridge.com>]
5296 *) Verify that incoming data obeys the block size in
5297 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5301 [Ulf Möller, Bodo Möller]
5303 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5304 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5305 when fixing the server behaviour for backwards-compatible 'client
5306 hello' messages. (Note that the attack is impractical against
5307 SSL 3.0 and TLS 1.0 anyway because length and version checking
5308 means that the probability of guessing a valid ciphertext is
5309 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5312 Before 0.9.5, the countermeasure (hide the error by generating a
5313 random 'decryption result') did not work properly because
5314 ERR_clear_error() was missing, meaning that SSL_get_error() would
5315 detect the supposedly ignored error.
5317 Both problems are now fixed.
5320 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5321 (previously it was 1024).
5324 *) Fix for compatibility mode trust settings: ignore trust settings
5325 unless some valid trust or reject settings are present.
5328 *) Fix for blowfish EVP: its a variable length cipher.
5331 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5332 parameters in DSA public key structures and return an error in the
5333 DSA routines if parameters are absent.
5336 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5337 in the current directory if neither $RANDFILE nor $HOME was set.
5338 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5339 caused some confusion to Windows users who haven't defined $HOME.
5340 Thus RAND_file_name() is changed again: e_os.h can define a
5341 DEFAULT_HOME, which will be used if $HOME is not set.
5342 For Windows, we use "C:"; on other platforms, we still require
5343 environment variables.
5345 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5346 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5347 having multiple threads call RAND_poll() concurrently.
5350 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5351 combination of a flag and a thread ID variable.
5352 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5353 flag), *other* threads can enter ssleay_add_bytes without obeying
5354 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5355 that they do not hold after the first thread unsets add_do_not_lock).
5358 *) Change bctest again: '-x' expressions are not available in all
5362 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5364 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5365 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5367 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5368 the default extension for executables, if any. Also, make the perl
5369 scripts that use symlink() to test if it really exists and use "cp"
5370 if it doesn't. All this made OpenSSL compilable and installable in
5374 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5375 If SEQUENCE is length is indefinite just set c->slen to the total
5376 amount of data available.
5377 [Steve Henson, reported by shige@FreeBSD.org]
5378 [This change does not apply to 0.9.7.]
5380 *) Change bctest to avoid here-documents inside command substitution
5381 (workaround for FreeBSD /bin/sh bug).
5382 For compatibility with Ultrix, avoid shell functions (introduced
5383 in the bctest version that searches along $PATH).
5386 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5387 with des_encrypt() defined on some operating systems, like Solaris
5391 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5392 On the Importance of Eliminating Errors in Cryptographic
5393 Computations, J. Cryptology 14 (2001) 2, 101-119,
5394 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5397 *) MIPS assembler BIGNUM division bug fix.
5400 *) Disabled incorrect Alpha assembler code.
5403 *) Fix PKCS#7 decode routines so they correctly update the length
5404 after reading an EOC for the EXPLICIT tag.
5406 [This change does not apply to 0.9.7.]
5408 *) Fix bug in PKCS#12 key generation routines. This was triggered
5409 if a 3DES key was generated with a 0 initial byte. Include
5410 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5411 (but broken) behaviour.
5414 *) Enhance bctest to search for a working bc along $PATH and print
5416 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5418 *) Fix memory leaks in err.c: free err_data string if necessary;
5419 don't write to the wrong index in ERR_set_error_data.
5422 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5426 *) Replace rdtsc with _emit statements for VC++ version 5.
5427 [Jeremy Cooper <jeremy@baymoo.org>]
5429 *) Make it possible to reuse SSLv2 sessions.
5432 *) In copy_email() check for >= 0 as a return value for
5433 X509_NAME_get_index_by_NID() since 0 is a valid index.
5434 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5436 *) Avoid coredump with unsupported or invalid public keys by checking if
5437 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5438 PKCS7_verify() fails with non detached data.
5441 *) Don't use getenv in library functions when run as setuid/setgid.
5442 New function OPENSSL_issetugid().
5445 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5446 due to incorrect handling of multi-threading:
5448 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5450 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5452 3. Count how many times MemCheck_off() has been called so that
5453 nested use can be treated correctly. This also avoids
5454 inband-signalling in the previous code (which relied on the
5455 assumption that thread ID 0 is impossible).
5458 *) Add "-rand" option also to s_client and s_server.
5461 *) Fix CPU detection on Irix 6.x.
5462 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5463 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5465 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5468 [This change does not apply to 0.9.7.]
5470 *) Use the cached encoding of an X509_NAME structure rather than
5471 copying it. This is apparently the reason for the libsafe "errors"
5472 but the code is actually correct.
5475 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5476 Bleichenbacher's DSA attack.
5477 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5478 to be set and top=0 forces the highest bit to be set; top=-1 is new
5479 and leaves the highest bit random.
5480 [Ulf Moeller, Bodo Moeller]
5482 *) In the NCONF_...-based implementations for CONF_... queries
5483 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5484 a temporary CONF structure with the data component set to NULL
5485 (which gives segmentation faults in lh_retrieve).
5486 Instead, use NULL for the CONF pointer in CONF_get_string and
5487 CONF_get_number (which may use environment variables) and directly
5488 return NULL from CONF_get_section.
5491 *) Fix potential buffer overrun for EBCDIC.
5494 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5495 keyUsage if basicConstraints absent for a CA.
5498 *) Make SMIME_write_PKCS7() write mail header values with a format that
5499 is more generally accepted (no spaces before the semicolon), since
5500 some programs can't parse those values properly otherwise. Also make
5501 sure BIO's that break lines after each write do not create invalid
5505 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5506 macros previously used would not encode an empty SEQUENCE OF
5507 and break the signature.
5509 [This change does not apply to 0.9.7.]
5511 *) Zero the premaster secret after deriving the master secret in
5515 *) Add some EVP_add_digest_alias registrations (as found in
5516 OpenSSL_add_all_digests()) to SSL_library_init()
5517 aka OpenSSL_add_ssl_algorithms(). This provides improved
5518 compatibility with peers using X.509 certificates
5519 with unconventional AlgorithmIdentifier OIDs.
5522 *) Fix for Irix with NO_ASM.
5523 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5525 *) ./config script fixes.
5526 [Ulf Moeller, Richard Levitte]
5528 *) Fix 'openssl passwd -1'.
5531 *) Change PKCS12_key_gen_asc() so it can cope with non null
5532 terminated strings whose length is passed in the passlen
5533 parameter, for example from PEM callbacks. This was done
5534 by adding an extra length parameter to asc2uni().
5535 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5537 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5538 call failed, free the DSA structure.
5541 *) Fix to uni2asc() to cope with zero length Unicode strings.
5542 These are present in some PKCS#12 files.
5545 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5546 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5547 when writing a 32767 byte record.
5548 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5550 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5551 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5553 (RSA objects have a reference count access to which is protected
5554 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5555 so they are meant to be shared between threads.)
5556 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5557 "Reddie, Steven" <Steven.Reddie@ca.com>]
5559 *) Fix a deadlock in CRYPTO_mem_leaks().
5562 *) Use better test patterns in bntest.
5565 *) rand_win.c fix for Borland C.
5568 *) BN_rshift bugfix for n == 0.
5571 *) Add a 'bctest' script that checks for some known 'bc' bugs
5572 so that 'make test' does not abort just because 'bc' is broken.
5575 *) Store verify_result within SSL_SESSION also for client side to
5576 avoid potential security hole. (Re-used sessions on the client side
5577 always resulted in verify_result==X509_V_OK, not using the original
5578 result of the server certificate verification.)
5581 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5582 SSL3_RT_APPLICATION_DATA, return 0.
5583 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5587 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5588 releases, have been re-implemented by renaming the previous
5589 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5590 and ssl3_read_internal, respectively, and adding 'peek' parameters
5591 to them. The new ssl[23]_{read,peek} functions are calls to
5592 ssl[23]_read_internal with the 'peek' flag set appropriately.
5593 A 'peek' parameter has also been added to ssl3_read_bytes, which
5594 does the actual work for ssl3_read_internal.
5597 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5598 the method-specific "init()" handler. Also clean up ex_data after
5599 calling the method-specific "finish()" handler. Previously, this was
5600 happening the other way round.
5603 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5604 The previous value, 12, was not always sufficient for BN_mod_exp().
5607 *) Make sure that shared libraries get the internal name engine with
5608 the full version number and not just 0. This should mark the
5609 shared libraries as not backward compatible. Of course, this should
5610 be changed again when we can guarantee backward binary compatibility.
5613 *) Fix typo in get_cert_by_subject() in by_dir.c
5614 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5616 *) Rework the system to generate shared libraries:
5618 - Make note of the expected extension for the shared libraries and
5619 if there is a need for symbolic links from for example libcrypto.so.0
5620 to libcrypto.so.0.9.7. There is extended info in Configure for
5623 - Make as few rebuilds of the shared libraries as possible.
5625 - Still avoid linking the OpenSSL programs with the shared libraries.
5627 - When installing, install the shared libraries separately from the
5631 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5633 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5634 and not in SSL_clear because the latter is also used by the
5635 accept/connect functions; previously, the settings made by
5636 SSL_set_read_ahead would be lost during the handshake.
5637 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5639 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5640 Previously, it would create entries for disableed algorithms no
5644 *) Added several new manual pages for SSL_* function.
5647 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5649 *) In ssl23_get_client_hello, generate an error message when faced
5650 with an initial SSL 3.0/TLS record that is too small to contain the
5651 first two bytes of the ClientHello message, i.e. client_version.
5652 (Note that this is a pathologic case that probably has never happened
5653 in real life.) The previous approach was to use the version number
5654 from the record header as a substitute; but our protocol choice
5655 should not depend on that one because it is not authenticated
5656 by the Finished messages.
5659 *) More robust randomness gathering functions for Windows.
5660 [Jeffrey Altman <jaltman@columbia.edu>]
5662 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5663 not set then we don't setup the error code for issuer check errors
5664 to avoid possibly overwriting other errors which the callback does
5665 handle. If an application does set the flag then we assume it knows
5666 what it is doing and can handle the new informational codes
5670 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5671 a general "ANY" type, as such it should be able to decode anything
5672 including tagged types. However it didn't check the class so it would
5673 wrongly interpret tagged types in the same way as their universal
5674 counterpart and unknown types were just rejected. Changed so that the
5675 tagged and unknown types are handled in the same way as a SEQUENCE:
5676 that is the encoding is stored intact. There is also a new type
5677 "V_ASN1_OTHER" which is used when the class is not universal, in this
5678 case we have no idea what the actual type is so we just lump them all
5682 *) On VMS, stdout may very well lead to a file that is written to
5683 in a record-oriented fashion. That means that every write() will
5684 write a separate record, which will be read separately by the
5685 programs trying to read from it. This can be very confusing.
5687 The solution is to put a BIO filter in the way that will buffer
5688 text until a linefeed is reached, and then write everything a
5689 line at a time, so every record written will be an actual line,
5690 not chunks of lines and not (usually doesn't happen, but I've
5691 seen it once) several lines in one record. BIO_f_linebuffer() is
5694 Currently, it's a VMS-only method, because that's where it has
5695 been tested well enough.
5698 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5699 it can return incorrect results.
5700 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5701 but it was in 0.9.6-beta[12].)
5704 *) Disable the check for content being present when verifying detached
5705 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5706 include zero length content when signing messages.
5709 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5710 BIO_ctrl (for BIO pairs).
5713 *) Add DSO method for VMS.
5716 *) Bug fix: Montgomery multiplication could produce results with the
5720 *) Add RPM specification openssl.spec and modify it to build three
5721 packages. The default package contains applications, application
5722 documentation and run-time libraries. The devel package contains
5723 include files, static libraries and function documentation. The
5724 doc package contains the contents of the doc directory. The original
5725 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5728 *) Add a large number of documentation files for many SSL routines.
5729 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5731 *) Add a configuration entry for Sony News 4.
5732 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5734 *) Don't set the two most significant bits to one when generating a
5735 random number < q in the DSA library.
5738 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5739 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5740 the underlying transport is blocking) if a handshake took place.
5741 (The default behaviour is needed by applications such as s_client
5742 and s_server that use select() to determine when to use SSL_read;
5743 but for applications that know in advance when to expect data, it
5744 just makes things more complicated.)
5747 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5751 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5752 work better on such systems.
5753 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5755 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5756 Update PKCS12_parse() so it copies the friendlyName and the
5757 keyid to the certificates aux info.
5760 *) Fix bug in PKCS7_verify() which caused an infinite loop
5761 if there was more than one signature.
5762 [Sven Uszpelkat <su@celocom.de>]
5764 *) Major change in util/mkdef.pl to include extra information
5765 about each symbol, as well as presentig variables as well
5766 as functions. This change means that there's n more need
5767 to rebuild the .num files when some algorithms are excluded.
5770 *) Allow the verify time to be set by an application,
5771 rather than always using the current time.
5774 *) Phase 2 verify code reorganisation. The certificate
5775 verify code now looks up an issuer certificate by a
5776 number of criteria: subject name, authority key id
5777 and key usage. It also verifies self signed certificates
5778 by the same criteria. The main comparison function is
5779 X509_check_issued() which performs these checks.
5781 Lot of changes were necessary in order to support this
5782 without completely rewriting the lookup code.
5784 Authority and subject key identifier are now cached.
5786 The LHASH 'certs' is X509_STORE has now been replaced
5787 by a STACK_OF(X509_OBJECT). This is mainly because an
5788 LHASH can't store or retrieve multiple objects with
5789 the same hash value.
5791 As a result various functions (which were all internal
5792 use only) have changed to handle the new X509_STORE
5793 structure. This will break anything that messed round
5794 with X509_STORE internally.
5796 The functions X509_STORE_add_cert() now checks for an
5797 exact match, rather than just subject name.
5799 The X509_STORE API doesn't directly support the retrieval
5800 of multiple certificates matching a given criteria, however
5801 this can be worked round by performing a lookup first
5802 (which will fill the cache with candidate certificates)
5803 and then examining the cache for matches. This is probably
5804 the best we can do without throwing out X509_LOOKUP
5805 entirely (maybe later...).
5807 The X509_VERIFY_CTX structure has been enhanced considerably.
5809 All certificate lookup operations now go via a get_issuer()
5810 callback. Although this currently uses an X509_STORE it
5811 can be replaced by custom lookups. This is a simple way
5812 to bypass the X509_STORE hackery necessary to make this
5813 work and makes it possible to use more efficient techniques
5814 in future. A very simple version which uses a simple
5815 STACK for its trusted certificate store is also provided
5816 using X509_STORE_CTX_trusted_stack().
5818 The verify_cb() and verify() callbacks now have equivalents
5819 in the X509_STORE_CTX structure.
5821 X509_STORE_CTX also has a 'flags' field which can be used
5822 to customise the verify behaviour.
5825 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5826 excludes S/MIME capabilities.
5829 *) When a certificate request is read in keep a copy of the
5830 original encoding of the signed data and use it when outputing
5831 again. Signatures then use the original encoding rather than
5832 a decoded, encoded version which may cause problems if the
5833 request is improperly encoded.
5836 *) For consistency with other BIO_puts implementations, call
5837 buffer_write(b, ...) directly in buffer_puts instead of calling
5840 In BIO_puts, increment b->num_write as in BIO_write.
5841 [Peter.Sylvester@EdelWeb.fr]
5843 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5844 BN_zero, we may not return a BIGNUM with an array consisting of
5848 *) Avoid calling abort() from within the library when problems are
5849 detected, except if preprocessor symbols have been defined
5850 (such as REF_CHECK, BN_DEBUG etc.).
5853 *) New openssl application 'rsautl'. This utility can be
5854 used for low level RSA operations. DER public key
5855 BIO/fp routines also added.
5858 *) New Configure entry and patches for compiling on QNX 4.
5859 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5861 *) A demo state-machine implementation was sponsored by
5862 Nuron (http://www.nuron.com/) and is now available in
5863 demos/state_machine.
5866 *) New options added to the 'dgst' utility for signature
5867 generation and verification.
5870 *) Unrecognized PKCS#7 content types are now handled via a
5871 catch all ASN1_TYPE structure. This allows unsupported
5872 types to be stored as a "blob" and an application can
5873 encode and decode it manually.
5876 *) Fix various signed/unsigned issues to make a_strex.c
5878 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5880 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5881 length if passed a buffer. ASN1_INTEGER_to_BN failed
5882 if passed a NULL BN and its argument was negative.
5883 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5885 *) Modification to PKCS#7 encoding routines to output definite
5886 length encoding. Since currently the whole structures are in
5887 memory there's not real point in using indefinite length
5888 constructed encoding. However if OpenSSL is compiled with
5889 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5892 *) Added BIO_vprintf() and BIO_vsnprintf().
5895 *) Added more prefixes to parse for in the the strings written
5896 through a logging bio, to cover all the levels that are available
5897 through syslog. The prefixes are now:
5899 PANIC, EMERG, EMR => LOG_EMERG
5900 ALERT, ALR => LOG_ALERT
5901 CRIT, CRI => LOG_CRIT
5902 ERROR, ERR => LOG_ERR
5903 WARNING, WARN, WAR => LOG_WARNING
5904 NOTICE, NOTE, NOT => LOG_NOTICE
5905 INFO, INF => LOG_INFO
5906 DEBUG, DBG => LOG_DEBUG
5908 and as before, if none of those prefixes are present at the
5909 beginning of the string, LOG_ERR is chosen.
5911 On Win32, the LOG_* levels are mapped according to this:
5913 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5914 LOG_WARNING => EVENTLOG_WARNING_TYPE
5915 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5919 *) Made it possible to reconfigure with just the configuration
5920 argument "reconf" or "reconfigure". The command line arguments
5921 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5922 and are retrieved from there when reconfiguring.
5926 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5928 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5931 *) The obj_dat.pl script was messing up the sorting of object
5932 names. The reason was that it compared the quoted version
5933 of strings as a result "OCSP" > "OCSP Signing" because
5934 " > SPACE. Changed script to store unquoted versions of
5935 names and add quotes on output. It was also omitting some
5936 names from the lookup table if they were given a default
5937 value (that is if SN is missing it is given the same
5938 value as LN and vice versa), these are now added on the
5939 grounds that if an object has a name we should be able to
5940 look it up. Finally added warning output when duplicate
5941 short or long names are found.
5944 *) Changes needed for Tandem NSK.
5945 [Scott Uroff <scott@xypro.com>]
5947 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5948 RSA_padding_check_SSLv23(), special padding was never detected
5949 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5950 version rollback attacks was not effective.
5952 In s23_clnt.c, don't use special rollback-attack detection padding
5953 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5954 client; similarly, in s23_srvr.c, don't do the rollback check if
5955 SSL 2.0 is the only protocol enabled in the server.
5958 *) Make it possible to get hexdumps of unprintable data with 'openssl
5959 asn1parse'. By implication, the functions ASN1_parse_dump() and
5960 BIO_dump_indent() are added.
5963 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5964 these print out strings and name structures based on various
5965 flags including RFC2253 support and proper handling of
5966 multibyte characters. Added options to the 'x509' utility
5967 to allow the various flags to be set.
5970 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5971 Also change the functions X509_cmp_current_time() and
5972 X509_gmtime_adj() work with an ASN1_TIME structure,
5973 this will enable certificates using GeneralizedTime in validity
5974 dates to be checked.
5977 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5978 negative public key encodings) on by default,
5979 NO_NEG_PUBKEY_BUG can be set to disable it.
5982 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5983 content octets. An i2c_ASN1_OBJECT is unnecessary because
5984 the encoding can be trivially obtained from the structure.
5987 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5988 not read locks (CRYPTO_r_[un]lock).
5991 *) A first attempt at creating official support for shared
5992 libraries through configuration. I've kept it so the
5993 default is static libraries only, and the OpenSSL programs
5994 are always statically linked for now, but there are
5995 preparations for dynamic linking in place.
5996 This has been tested on Linux and Tru64.
5999 *) Randomness polling function for Win9x, as described in:
6000 Peter Gutmann, Software Generation of Practically Strong
6004 *) Fix so PRNG is seeded in req if using an already existing
6008 *) New options to smime application. -inform and -outform
6009 allow alternative formats for the S/MIME message including
6010 PEM and DER. The -content option allows the content to be
6011 specified separately. This should allow things like Netscape
6012 form signing output easier to verify.
6015 *) Fix the ASN1 encoding of tags using the 'long form'.
6018 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6019 STRING types. These convert content octets to and from the
6020 underlying type. The actual tag and length octets are
6021 already assumed to have been read in and checked. These
6022 are needed because all other string types have virtually
6023 identical handling apart from the tag. By having versions
6024 of the ASN1 functions that just operate on content octets
6025 IMPLICIT tagging can be handled properly. It also allows
6026 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6027 and ASN1_INTEGER are identical apart from the tag.
6030 *) Change the handling of OID objects as follows:
6032 - New object identifiers are inserted in objects.txt, following
6033 the syntax given in objects.README.
6034 - objects.pl is used to process obj_mac.num and create a new
6036 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6039 This is currently kind of a hack, and the perl code in objects.pl
6040 isn't very elegant, but it works as I intended. The simplest way
6041 to check that it worked correctly is to look in obj_dat.h and
6042 check the array nid_objs and make sure the objects haven't moved
6043 around (this is important!). Additions are OK, as well as
6044 consistent name changes.
6047 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6050 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6051 The given file adds to whatever has already been seeded into the
6052 random pool through the RANDFILE configuration file option or
6053 environment variable, or the default random state file.
6056 *) mkstack.pl now sorts each macro group into lexical order.
6057 Previously the output order depended on the order the files
6058 appeared in the directory, resulting in needless rewriting
6062 *) Patches to make OpenSSL compile under Win32 again. Mostly
6063 work arounds for the VC++ problem that it treats func() as
6064 func(void). Also stripped out the parts of mkdef.pl that
6065 added extra typesafe functions: these no longer exist.
6068 *) Reorganisation of the stack code. The macros are now all
6069 collected in safestack.h . Each macro is defined in terms of
6070 a "stack macro" of the form SKM_<name>(type, a, b). The
6071 DEBUG_SAFESTACK is now handled in terms of function casts,
6072 this has the advantage of retaining type safety without the
6073 use of additional functions. If DEBUG_SAFESTACK is not defined
6074 then the non typesafe macros are used instead. Also modified the
6075 mkstack.pl script to handle the new form. Needs testing to see
6076 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6077 the default if no major problems. Similar behaviour for ASN1_SET_OF
6078 and PKCS12_STACK_OF.
6081 *) When some versions of IIS use the 'NET' form of private key the
6082 key derivation algorithm is different. Normally MD5(password) is
6083 used as a 128 bit RC4 key. In the modified case
6084 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6085 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6086 as the old Netscape_RSA functions except they have an additional
6087 'sgckey' parameter which uses the modified algorithm. Also added
6088 an -sgckey command line option to the rsa utility. Thanks to
6089 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6090 algorithm to openssl-dev.
6093 *) The evp_local.h macros were using 'c.##kname' which resulted in
6094 invalid expansion on some systems (SCO 5.0.5 for example).
6095 Corrected to 'c.kname'.
6096 [Phillip Porch <root@theporch.com>]
6098 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6099 a STACK of email addresses from a certificate or request, these look
6100 in the subject name and the subject alternative name extensions and
6101 omit any duplicate addresses.
6104 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6105 This makes DSA verification about 2 % faster.
6108 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6109 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6110 plus overhead for 1024 bit moduli).
6111 This makes exponentiations about 0.5 % faster for 1024 bit
6112 exponents (as measured by "openssl speed rsa2048").
6115 *) Rename memory handling macros to avoid conflicts with other
6117 Malloc => OPENSSL_malloc
6118 Malloc_locked => OPENSSL_malloc_locked
6119 Realloc => OPENSSL_realloc
6120 Free => OPENSSL_free
6123 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6124 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6127 *) CygWin32 support.
6128 [John Jarvie <jjarvie@newsguy.com>]
6130 *) The type-safe stack code has been rejigged. It is now only compiled
6131 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6132 by default all type-specific stack functions are "#define"d back to
6133 standard stack functions. This results in more streamlined output
6134 but retains the type-safety checking possibilities of the original
6138 *) The STACK code has been cleaned up, and certain type declarations
6139 that didn't make a lot of sense have been brought in line. This has
6140 also involved a cleanup of sorts in safestack.h to more correctly
6141 map type-safe stack functions onto their plain stack counterparts.
6142 This work has also resulted in a variety of "const"ifications of
6143 lots of the code, especially "_cmp" operations which should normally
6144 be prototyped with "const" parameters anyway.
6147 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6148 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6149 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6150 where all of 'md' is used each time the PRNG is used, but 'state'
6151 is used only indexed by a cyclic counter. As entropy may not be
6152 well distributed from the beginning, 'md' is important as a
6153 chaining variable. However, the output function chains only half
6154 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6155 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6156 in all of 'state' being rewritten, with the new values depending
6157 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6160 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6161 the handshake is continued after ssl_verify_cert_chain();
6162 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6163 can lead to 'unexplainable' connection aborts later.
6164 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6166 *) Major EVP API cipher revision.
6167 Add hooks for extra EVP features. This allows various cipher
6168 parameters to be set in the EVP interface. Support added for variable
6169 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6170 setting of RC2 and RC5 parameters.
6172 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6175 Remove lots of duplicated code from the EVP library. For example *every*
6176 cipher init() function handles the 'iv' in the same way according to the
6177 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6178 for CFB and OFB modes they zero ctx->num.
6180 New functionality allows removal of S/MIME code RC2 hack.
6182 Most of the routines have the same form and so can be declared in terms
6185 By shifting this to the top level EVP_CipherInit() it can be removed from
6186 all individual ciphers. If the cipher wants to handle IVs or keys
6187 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6190 Change lots of functions like EVP_EncryptUpdate() to now return a
6191 value: although software versions of the algorithms cannot fail
6192 any installed hardware versions can.
6195 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6196 this option is set, tolerate broken clients that send the negotiated
6197 protocol version number instead of the requested protocol version
6201 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6202 i.e. non-zero for export ciphersuites, zero otherwise.
6203 Previous versions had this flag inverted, inconsistent with
6204 rsa_tmp_cb (..._TMP_RSA_CB).
6205 [Bodo Moeller; problem reported by Amit Chopra]
6207 *) Add missing DSA library text string. Work around for some IIS
6208 key files with invalid SEQUENCE encoding.
6211 *) Add a document (doc/standards.txt) that list all kinds of standards
6212 and so on that are implemented in OpenSSL.
6215 *) Enhance c_rehash script. Old version would mishandle certificates
6216 with the same subject name hash and wouldn't handle CRLs at all.
6217 Added -fingerprint option to crl utility, to support new c_rehash
6221 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6224 *) Fix for SSL server purpose checking. Server checking was
6225 rejecting certificates which had extended key usage present
6226 but no ssl client purpose.
6227 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6229 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6230 is a little unclear about how a blank password is handled.
6231 Since the password in encoded as a BMPString with terminating
6232 double NULL a zero length password would end up as just the
6233 double NULL. However no password at all is different and is
6234 handled differently in the PKCS#12 key generation code. NS
6235 treats a blank password as zero length. MSIE treats it as no
6236 password on export: but it will try both on import. We now do
6237 the same: PKCS12_parse() tries zero length and no password if
6238 the password is set to "" or NULL (NULL is now a valid password:
6239 it wasn't before) as does the pkcs12 application.
6242 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6243 perror when PEM_read_bio_X509_REQ fails, the error message must
6244 be obtained from the error queue.
6247 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6248 it in ERR_remove_state if appropriate, and change ERR_get_state
6249 accordingly to avoid race conditions (this is necessary because
6250 thread_hash is no longer constant once set).
6253 *) Bugfix for linux-elf makefile.one.
6256 *) RSA_get_default_method() will now cause a default
6257 RSA_METHOD to be chosen if one doesn't exist already.
6258 Previously this was only set during a call to RSA_new()
6259 or RSA_new_method(NULL) meaning it was possible for
6260 RSA_get_default_method() to return NULL.
6263 *) Added native name translation to the existing DSO code
6264 that will convert (if the flag to do so is set) filenames
6265 that are sufficiently small and have no path information
6266 into a canonical native form. Eg. "blah" converted to
6267 "libblah.so" or "blah.dll" etc.
6270 *) New function ERR_error_string_n(e, buf, len) which is like
6271 ERR_error_string(e, buf), but writes at most 'len' bytes
6272 including the 0 terminator. For ERR_error_string_n, 'buf'
6274 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6276 *) CONF library reworked to become more general. A new CONF
6277 configuration file reader "class" is implemented as well as a
6278 new functions (NCONF_*, for "New CONF") to handle it. The now
6279 old CONF_* functions are still there, but are reimplemented to
6280 work in terms of the new functions. Also, a set of functions
6281 to handle the internal storage of the configuration data is
6282 provided to make it easier to write new configuration file
6283 reader "classes" (I can definitely see something reading a
6284 configuration file in XML format, for example), called _CONF_*,
6285 or "the configuration storage API"...
6287 The new configuration file reading functions are:
6289 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6290 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6292 NCONF_default, NCONF_WIN32
6294 NCONF_dump_fp, NCONF_dump_bio
6296 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6297 NCONF_new creates a new CONF object. This works in the same way
6298 as other interfaces in OpenSSL, like the BIO interface.
6299 NCONF_dump_* dump the internal storage of the configuration file,
6300 which is useful for debugging. All other functions take the same
6301 arguments as the old CONF_* functions wth the exception of the
6302 first that must be a `CONF *' instead of a `LHASH *'.
6304 To make it easer to use the new classes with the old CONF_* functions,
6305 the function CONF_set_default_method is provided.
6308 *) Add '-tls1' option to 'openssl ciphers', which was already
6309 mentioned in the documentation but had not been implemented.
6310 (This option is not yet really useful because even the additional
6311 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6314 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6315 OpenSSL-based applications) load shared libraries and bind to
6316 them in a portable way.
6317 [Geoff Thorpe, with contributions from Richard Levitte]
6319 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6321 *) Make sure _lrotl and _lrotr are only used with MSVC.
6323 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6324 (the default implementation of RAND_status).
6326 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6327 to '-clrext' (= clear extensions), as intended and documented.
6328 [Bodo Moeller; inconsistency pointed out by Michael Attili
6331 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6332 was larger than the MD block size.
6333 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6335 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6336 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6337 using the passed key: if the passed key was a private key the result
6338 of X509_print(), for example, would be to print out all the private key
6342 *) des_quad_cksum() byte order bug fix.
6343 [Ulf Möller, using the problem description in krb4-0.9.7, where
6344 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6346 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6348 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6350 *) For easily testing in shell scripts whether some command
6351 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6352 returns with exit code 0 iff no command of the given name is available.
6353 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6354 the output goes to stdout and nothing is printed to stderr.
6355 Additional arguments are always ignored.
6357 Since for each cipher there is a command of the same name,
6358 the 'no-cipher' compilation switches can be tested this way.
6360 ('openssl no-XXX' is not able to detect pseudo-commands such
6361 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6364 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6367 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6368 is set; it will be thrown away anyway because each handshake creates
6370 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6371 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6372 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6373 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6376 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6377 'Q' and 'R' lose their special meanings (quit/renegotiate).
6378 This is part of what -quiet does; unlike -quiet, -ign_eof
6379 does not suppress any output.
6382 *) Add compatibility options to the purpose and trust code. The
6383 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6384 accepts a certificate or CA, this was the previous behaviour,
6385 with all the associated security issues.
6387 X509_TRUST_COMPAT is the old trust behaviour: only and
6388 automatically trust self signed roots in certificate store. A
6389 new trust setting X509_TRUST_DEFAULT is used to specify that
6390 a purpose has no associated trust setting and it should instead
6391 use the value in the default purpose.
6394 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6395 and fix a memory leak.
6398 *) In util/mkerr.pl (which implements 'make errors'), preserve
6399 reason strings from the previous version of the .c file, as
6400 the default to have only downcase letters (and digits) in
6401 automatically generated reasons codes is not always appropriate.
6404 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6405 using strerror. Previously, ERR_reason_error_string() returned
6406 library names as reason strings for SYSerr; but SYSerr is a special
6407 case where small numbers are errno values, not library numbers.
6410 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6411 converts DSA parameters into DH parameters. (When creating parameters,
6412 DSA_generate_parameters is used.)
6415 *) Include 'length' (recommended exponent length) in C code generated
6416 by 'openssl dhparam -C'.
6419 *) The second argument to set_label in perlasm was already being used
6420 so couldn't be used as a "file scope" flag. Moved to third argument
6424 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6425 instead of RAND_bytes for encryption IVs and salts.
6428 *) Include RAND_status() into RAND_METHOD instead of implementing
6429 it only for md_rand.c Otherwise replacing the PRNG by calling
6430 RAND_set_rand_method would be impossible.
6433 *) Don't let DSA_generate_key() enter an infinite loop if the random
6434 number generation fails.
6437 *) New 'rand' application for creating pseudo-random output.
6440 *) Added configuration support for Linux/IA64
6441 [Rolf Haberrecker <rolf@suse.de>]
6443 *) Assembler module support for Mingw32.
6446 *) Shared library support for HPUX (in shlib/).
6447 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6449 *) Shared library support for Solaris gcc.
6450 [Lutz Behnke <behnke@trustcenter.de>]
6452 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6454 *) PKCS7_encrypt() was adding text MIME headers twice because they
6455 were added manually and by SMIME_crlf_copy().
6458 *) In bntest.c don't call BN_rand with zero bits argument.
6459 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6461 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6462 case was implemented. This caused BN_div_recp() to fail occasionally.
6465 *) Add an optional second argument to the set_label() in the perl
6466 assembly language builder. If this argument exists and is set
6467 to 1 it signals that the assembler should use a symbol whose
6468 scope is the entire file, not just the current function. This
6469 is needed with MASM which uses the format label:: for this scope.
6470 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6472 *) Change the ASN1 types so they are typedefs by default. Before
6473 almost all types were #define'd to ASN1_STRING which was causing
6474 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6478 *) Change names of new functions to the new get1/get0 naming
6479 convention: After 'get1', the caller owns a reference count
6480 and has to call ..._free; 'get0' returns a pointer to some
6481 data structure without incrementing reference counters.
6482 (Some of the existing 'get' functions increment a reference
6483 counter, some don't.)
6484 Similarly, 'set1' and 'add1' functions increase reference
6485 counters or duplicate objects.
6488 *) Allow for the possibility of temp RSA key generation failure:
6489 the code used to assume it always worked and crashed on failure.
6492 *) Fix potential buffer overrun problem in BIO_printf().
6493 [Ulf Möller, using public domain code by Patrick Powell; problem
6494 pointed out by David Sacerdote <das33@cornell.edu>]
6496 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6497 RAND_egd() and RAND_status(). In the command line application,
6498 the EGD socket can be specified like a seed file using RANDFILE
6502 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6503 Some CAs (e.g. Verisign) distribute certificates in this form.
6506 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6507 list to exclude them. This means that no special compilation option
6508 is needed to use anonymous DH: it just needs to be included in the
6512 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6513 EVP_MD_type. The old functionality is available in a new macro called
6514 EVP_MD_md(). Change code that uses it and update docs.
6517 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6518 where the 'void *' argument is replaced by a function pointer argument.
6519 Previously 'void *' was abused to point to functions, which works on
6520 many platforms, but is not correct. As these functions are usually
6521 called by macros defined in OpenSSL header files, most source code
6522 should work without changes.
6525 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6526 sections with information on -D... compiler switches used for
6527 compiling the library so that applications can see them. To enable
6528 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6529 must be defined. E.g.,
6530 #define OPENSSL_ALGORITHM_DEFINES
6531 #include <openssl/opensslconf.h>
6532 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6533 [Richard Levitte, Ulf and Bodo Möller]
6535 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6539 *) Change the 'other' type in certificate aux info to a STACK_OF
6540 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6541 the required ASN1 format: arbitrary types determined by an OID.
6544 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6545 argument to 'req'. This is not because the function is newer or
6546 better than others it just uses the work 'NEW' in the certificate
6547 request header lines. Some software needs this.
6550 *) Reorganise password command line arguments: now passwords can be
6551 obtained from various sources. Delete the PEM_cb function and make
6552 it the default behaviour: i.e. if the callback is NULL and the
6553 usrdata argument is not NULL interpret it as a null terminated pass
6554 phrase. If usrdata and the callback are NULL then the pass phrase
6555 is prompted for as usual.
6558 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6559 the support is automatically enabled. The resulting binaries will
6560 autodetect the card and use it if present.
6561 [Ben Laurie and Compaq Inc.]
6563 *) Work around for Netscape hang bug. This sends certificate request
6564 and server done in one record. Since this is perfectly legal in the
6565 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6566 the bugs/SSLv3 entry for more info.
6569 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6572 *) Add -rand argument to smime and pkcs12 applications and read/write
6576 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6579 *) Add command line password options to the remaining applications.
6582 *) Bug fix for BN_div_recp() for numerators with an even number of
6586 *) More tests in bntest.c, and changed test_bn output.
6589 *) ./config recognizes MacOS X now.
6592 *) Bug fix for BN_div() when the first words of num and divsor are
6593 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6596 *) Add support for various broken PKCS#8 formats, and command line
6597 options to produce them.
6600 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6601 get temporary BIGNUMs from a BN_CTX.
6604 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6608 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6609 include a #define from the old name to the new. The original intent
6610 was that statically linked binaries could for example just call
6611 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6612 link with digests. This never worked becayse SSLeay_add_all_digests()
6613 and SSLeay_add_all_ciphers() were in the same source file so calling
6614 one would link with the other. They are now in separate source files.
6617 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6620 *) Use a less unusual form of the Miller-Rabin primality test (it used
6621 a binary algorithm for exponentiation integrated into the Miller-Rabin
6622 loop, our standard modexp algorithms are faster).
6625 *) Support for the EBCDIC character set completed.
6626 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6628 *) Source code cleanups: use const where appropriate, eliminate casts,
6629 use void * instead of char * in lhash.
6632 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6633 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6634 this the server could overwrite ephemeral keys that the client
6638 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6639 using 50 iterations of the Rabin-Miller test.
6641 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6642 iterations of the Rabin-Miller test as required by the appendix
6643 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6644 As BN_is_prime_fasttest includes trial division, DSA parameter
6645 generation becomes much faster.
6647 This implies a change for the callback functions in DSA_is_prime
6648 and DSA_generate_parameters: The callback function is called once
6649 for each positive witness in the Rabin-Miller test, not just
6650 occasionally in the inner loop; and the parameters to the
6651 callback function now provide an iteration count for the outer
6652 loop rather than for the current invocation of the inner loop.
6653 DSA_generate_parameters additionally can call the callback
6654 function with an 'iteration count' of -1, meaning that a
6655 candidate has passed the trial division test (when q is generated
6656 from an application-provided seed, trial division is skipped).
6659 *) New function BN_is_prime_fasttest that optionally does trial
6660 division before starting the Rabin-Miller test and has
6661 an additional BN_CTX * argument (whereas BN_is_prime always
6662 has to allocate at least one BN_CTX).
6663 'callback(1, -1, cb_arg)' is called when a number has passed the
6664 trial division stage.
6667 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6671 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6674 *) New function BN_pseudo_rand().
6677 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6678 bignum version of BN_from_montgomery() with the working code from
6679 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6683 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6684 made it impossible to use the same SSL_SESSION data structure in
6685 SSL2 clients in multiple threads.
6688 *) The return value of RAND_load_file() no longer counts bytes obtained
6689 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6690 to seed the PRNG (previously an explicit byte count was required).
6691 [Ulf Möller, Bodo Möller]
6693 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6694 used (char *) instead of (void *) and had casts all over the place.
6697 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6700 *) Retain source code compatibility for BN_prime_checks macro:
6701 BN_is_prime(..., BN_prime_checks, ...) now uses
6702 BN_prime_checks_for_size to determine the appropriate number of
6703 Rabin-Miller iterations.
6706 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6707 DH_CHECK_P_NOT_SAFE_PRIME.
6708 (Check if this is true? OpenPGP calls them "strong".)
6711 *) Merge the functionality of "dh" and "gendh" programs into a new program
6712 "dhparam". The old programs are retained for now but will handle DH keys
6713 (instead of parameters) in future.
6716 *) Make the ciphers, s_server and s_client programs check the return values
6717 when a new cipher list is set.
6720 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6721 ciphers. Before when the 56bit ciphers were enabled the sorting was
6724 The syntax for the cipher sorting has been extended to support sorting by
6725 cipher-strength (using the strength_bits hard coded in the tables).
6726 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6728 Fix a bug in the cipher-command parser: when supplying a cipher command
6729 string with an "undefined" symbol (neither command nor alphanumeric
6730 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6731 an error is flagged.
6733 Due to the strength-sorting extension, the code of the
6734 ssl_create_cipher_list() function was completely rearranged. I hope that
6735 the readability was also increased :-)
6736 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6738 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6739 for the first serial number and places 2 in the serial number file. This
6740 avoids problems when the root CA is created with serial number zero and
6741 the first user certificate has the same issuer name and serial number
6745 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6746 the new code. Add documentation for this stuff.
6749 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6750 X509_*() to X509at_*() on the grounds that they don't handle X509
6751 structures and behave in an analagous way to the X509v3 functions:
6752 they shouldn't be called directly but wrapper functions should be used
6755 So we also now have some wrapper functions that call the X509at functions
6756 when passed certificate requests. (TO DO: similar things can be done with
6757 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6758 things. Some of these need some d2i or i2d and print functionality
6759 because they handle more complex structures.)
6762 *) Add missing #ifndefs that caused missing symbols when building libssl
6763 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6764 NO_RSA in ssl/s2*.c.
6765 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6767 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6768 has a return value which indicates the quality of the random data
6769 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6770 error queue. New function RAND_pseudo_bytes() generates output that is
6771 guaranteed to be unique but not unpredictable. RAND_add is like
6772 RAND_seed, but takes an extra argument for an entropy estimate
6773 (RAND_seed always assumes full entropy).
6776 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6777 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6778 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6779 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6780 false-positive rate of at most 2^-80 for random input.
6783 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6786 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6787 in the 0.9.5 release), this returns the chain
6788 from an X509_CTX structure with a dup of the stack and all
6789 the X509 reference counts upped: so the stack will exist
6790 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6793 Also make SSL_SESSION_print() print out the verify return
6797 *) Add manpage for the pkcs12 command. Also change the default
6798 behaviour so MAC iteration counts are used unless the new
6799 -nomaciter option is used. This improves file security and
6800 only older versions of MSIE (4.0 for example) need it.
6803 *) Honor the no-xxx Configure options when creating .DEF files.
6806 *) Add PKCS#10 attributes to field table: challengePassword,
6807 unstructuredName and unstructuredAddress. These are taken from
6808 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6809 international characters are used.
6811 More changes to X509_ATTRIBUTE code: allow the setting of types
6812 based on strings. Remove the 'loc' parameter when adding
6813 attributes because these will be a SET OF encoding which is sorted
6817 *) Initial changes to the 'req' utility to allow request generation
6818 automation. This will allow an application to just generate a template
6819 file containing all the field values and have req construct the
6822 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6823 used all over the place including certificate requests and PKCS#7
6824 structures. They are currently handled manually where necessary with
6825 some primitive wrappers for PKCS#7. The new functions behave in a
6826 manner analogous to the X509 extension functions: they allow
6827 attributes to be looked up by NID and added.
6829 Later something similar to the X509V3 code would be desirable to
6830 automatically handle the encoding, decoding and printing of the
6831 more complex types. The string types like challengePassword can
6832 be handled by the string table functions.
6834 Also modified the multi byte string table handling. Now there is
6835 a 'global mask' which masks out certain types. The table itself
6836 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6837 is useful when for example there is only one permissible type
6838 (as in countryName) and using the mask might result in no valid
6842 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6843 SSL_get_peer_finished to allow applications to obtain the latest
6844 Finished messages sent to the peer or expected from the peer,
6845 respectively. (SSL_get_peer_finished is usually the Finished message
6846 actually received from the peer, otherwise the protocol will be aborted.)
6848 As the Finished message are message digests of the complete handshake
6849 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6850 be used for external authentication procedures when the authentication
6851 provided by SSL/TLS is not desired or is not enough.
6854 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6855 the host supports BWX extension and if Compaq C is present on the
6856 $PATH. Just exploiting of the BWX extension results in 20-30%
6857 performance kick for some algorithms, e.g. DES and RC4 to mention
6858 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6862 *) Add support for MS "fast SGC". This is arguably a violation of the
6863 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6864 weak crypto and after checking the certificate is SGC a second one
6865 with strong crypto. MS SGC stops the first handshake after receiving
6866 the server certificate message and sends a second client hello. Since
6867 a server will typically do all the time consuming operations before
6868 expecting any further messages from the client (server key exchange
6869 is the most expensive) there is little difference between the two.
6871 To get OpenSSL to support MS SGC we have to permit a second client
6872 hello message after we have sent server done. In addition we have to
6873 reset the MAC if we do get this second client hello.
6876 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6877 if a DER encoded private key is RSA or DSA traditional format. Changed
6878 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6879 format DER encoded private key. Newer code should use PKCS#8 format which
6880 has the key type encoded in the ASN1 structure. Added DER private key
6881 support to pkcs8 application.
6884 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6885 ciphersuites has been selected (as required by the SSL 3/TLS 1
6886 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6887 is set, we interpret this as a request to violate the specification
6888 (the worst that can happen is a handshake failure, and 'correct'
6889 behaviour would result in a handshake failure anyway).
6892 *) In SSL_CTX_add_session, take into account that there might be multiple
6893 SSL_SESSION structures with the same session ID (e.g. when two threads
6894 concurrently obtain them from an external cache).
6895 The internal cache can handle only one SSL_SESSION with a given ID,
6896 so if there's a conflict, we now throw out the old one to achieve
6900 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6901 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6902 some routines that use cipher OIDs: some ciphers do not have OIDs
6903 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6907 *) Simplify the trust setting structure and code. Now we just have
6908 two sequences of OIDs for trusted and rejected settings. These will
6909 typically have values the same as the extended key usage extension
6910 and any application specific purposes.
6912 The trust checking code now has a default behaviour: it will just
6913 check for an object with the same NID as the passed id. Functions can
6914 be provided to override either the default behaviour or the behaviour
6915 for a given id. SSL client, server and email already have functions
6916 in place for compatibility: they check the NID and also return "trusted"
6917 if the certificate is self signed.
6920 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6921 traditional format into an EVP_PKEY structure.
6924 *) Add a password callback function PEM_cb() which either prompts for
6925 a password if usr_data is NULL or otherwise assumes it is a null
6926 terminated password. Allow passwords to be passed on command line
6927 environment or config files in a few more utilities.
6930 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6931 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6932 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6933 Update documentation.
6936 *) Support for ASN1 "NULL" type. This could be handled before by using
6937 ASN1_TYPE but there wasn't any function that would try to read a NULL
6938 and produce an error if it couldn't. For compatibility we also have
6939 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6940 don't allocate anything because they don't need to.
6943 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6945 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6947 *) Rebuild of the memory allocation routines used by OpenSSL code and
6948 possibly others as well. The purpose is to make an interface that
6949 provide hooks so anyone can build a separate set of allocation and
6950 deallocation routines to be used by OpenSSL, for example memory
6951 pool implementations, or something else, which was previously hard
6952 since Malloc(), Realloc() and Free() were defined as macros having
6953 the values malloc, realloc and free, respectively (except for Win32
6954 compilations). The same is provided for memory debugging code.
6955 OpenSSL already comes with functionality to find memory leaks, but
6956 this gives people a chance to debug other memory problems.
6958 With these changes, a new set of functions and macros have appeared:
6960 CRYPTO_set_mem_debug_functions() [F]
6961 CRYPTO_get_mem_debug_functions() [F]
6962 CRYPTO_dbg_set_options() [F]
6963 CRYPTO_dbg_get_options() [F]
6964 CRYPTO_malloc_debug_init() [M]
6966 The memory debug functions are NULL by default, unless the library
6967 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6968 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6969 gives the standard debugging functions that come with OpenSSL) or
6970 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6971 provided by the library user) must be used. When the standard
6972 debugging functions are used, CRYPTO_dbg_set_options can be used to
6973 request additional information:
6974 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6975 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6977 Also, things like CRYPTO_set_mem_functions will always give the
6978 expected result (the new set of functions is used for allocation
6979 and deallocation) at all times, regardless of platform and compiler
6982 To finish it up, some functions that were never use in any other
6983 way than through macros have a new API and new semantic:
6986 CRYPTO_dbg_realloc()
6989 All macros of value have retained their old syntax.
6990 [Richard Levitte and Bodo Moeller]
6992 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6993 ordering of SMIMECapabilities wasn't in "strength order" and there
6994 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6998 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6999 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7000 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7002 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7003 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7004 functionality to handle multipart/signed properly) and a utility
7005 called 'smime' to call all this stuff. This is based on code I
7006 originally wrote for Celo who have kindly allowed it to be
7007 included in OpenSSL.
7010 *) Add variants des_set_key_checked and des_set_key_unchecked of
7011 des_set_key (aka des_key_sched). Global variable des_check_key
7012 decides which of these is called by des_set_key; this way
7013 des_check_key behaves as it always did, but applications and
7014 the library itself, which was buggy for des_check_key == 1,
7015 have a cleaner way to pick the version they need.
7018 *) New function PKCS12_newpass() which changes the password of a
7022 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7023 dynamic mix. In both cases the ids can be used as an index into the
7024 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7025 functions so they accept a list of the field values and the
7026 application doesn't need to directly manipulate the X509_TRUST
7030 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7034 *) Modify the way the V3 extension code looks up extensions. This now
7035 works in a similar way to the object code: we have some "standard"
7036 extensions in a static table which is searched with OBJ_bsearch()
7037 and the application can add dynamic ones if needed. The file
7038 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7039 updated whenever a new extension is added to the core code and kept
7040 in ext_nid order. There is a simple program 'tabtest.c' which checks
7041 this. New extensions are not added too often so this file can readily
7042 be maintained manually.
7044 There are two big advantages in doing things this way. The extensions
7045 can be looked up immediately and no longer need to be "added" using
7046 X509V3_add_standard_extensions(): this function now does nothing.
7047 [Side note: I get *lots* of email saying the extension code doesn't
7048 work because people forget to call this function]
7049 Also no dynamic allocation is done unless new extensions are added:
7050 so if we don't add custom extensions there is no need to call
7051 X509V3_EXT_cleanup().
7054 *) Modify enc utility's salting as follows: make salting the default. Add a
7055 magic header, so unsalted files fail gracefully instead of just decrypting
7056 to garbage. This is because not salting is a big security hole, so people
7057 should be discouraged from doing it.
7060 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7061 digest to be passed on the command line but it only used this
7062 parameter when signing a certificate. Modified so all relevant
7063 operations are affected by the digest parameter including the
7064 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7065 DSA key was used because it didn't fix the digest.
7068 *) Initial certificate chain verify code. Currently tests the untrusted
7069 certificates for consistency with the verify purpose (which is set
7070 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7072 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7073 this is because it will reject chains with invalid extensions whereas
7074 every previous version of OpenSSL and SSLeay made no checks at all.
7076 Trust code: checks the root CA for the relevant trust settings. Trust
7077 settings have an initial value consistent with the verify purpose: e.g.
7078 if the verify purpose is for SSL client use it expects the CA to be
7079 trusted for SSL client use. However the default value can be changed to
7080 permit custom trust settings: one example of this would be to only trust
7081 certificates from a specific "secure" set of CAs.
7083 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7084 which should be used for version portability: especially since the
7085 verify structure is likely to change more often now.
7087 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7088 to set them. If not set then assume SSL clients will verify SSL servers
7091 Two new options to the verify program: -untrusted allows a set of
7092 untrusted certificates to be passed in and -purpose which sets the
7093 intended purpose of the certificate. If a purpose is set then the
7094 new chain verify code is used to check extension consistency.
7097 *) Support for the authority information access extension.
7100 *) Modify RSA and DSA PEM read routines to transparently handle
7101 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7102 public keys in a format compatible with certificate
7103 SubjectPublicKeyInfo structures. Unfortunately there were already
7104 functions called *_PublicKey_* which used various odd formats so
7105 these are retained for compatibility: however the DSA variants were
7106 never in a public release so they have been deleted. Changed dsa/rsa
7107 utilities to handle the new format: note no releases ever handled public
7108 keys so we should be OK.
7110 The primary motivation for this change is to avoid the same fiasco
7111 that dogs private keys: there are several incompatible private key
7112 formats some of which are standard and some OpenSSL specific and
7113 require various evil hacks to allow partial transparent handling and
7114 even then it doesn't work with DER formats. Given the option anything
7115 other than PKCS#8 should be dumped: but the other formats have to
7116 stay in the name of compatibility.
7118 With public keys and the benefit of hindsight one standard format
7119 is used which works with EVP_PKEY, RSA or DSA structures: though
7120 it clearly returns an error if you try to read the wrong kind of key.
7122 Added a -pubkey option to the 'x509' utility to output the public key.
7123 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7124 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7125 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7126 that do the same as the EVP_PKEY_assign_*() except they up the
7127 reference count of the added key (they don't "swallow" the
7131 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7132 CRLs would fail if the file contained no certificates or no CRLs:
7133 added a new function to read in both types and return the number
7134 read: this means that if none are read it will be an error. The
7135 DER versions of the certificate and CRL reader would always fail
7136 because it isn't possible to mix certificates and CRLs in DER format
7137 without choking one or the other routine. Changed this to just read
7138 a certificate: this is the best we can do. Also modified the code
7139 in apps/verify.c to take notice of return codes: it was previously
7140 attempting to read in certificates from NULL pointers and ignoring
7141 any errors: this is one reason why the cert and CRL reader seemed
7142 to work. It doesn't check return codes from the default certificate
7143 routines: these may well fail if the certificates aren't installed.
7146 *) Code to support otherName option in GeneralName.
7149 *) First update to verify code. Change the verify utility
7150 so it warns if it is passed a self signed certificate:
7151 for consistency with the normal behaviour. X509_verify
7152 has been modified to it will now verify a self signed
7153 certificate if *exactly* the same certificate appears
7154 in the store: it was previously impossible to trust a
7155 single self signed certificate. This means that:
7156 openssl verify ss.pem
7157 now gives a warning about a self signed certificate but
7158 openssl verify -CAfile ss.pem ss.pem
7162 *) For servers, store verify_result in SSL_SESSION data structure
7163 (and add it to external session representation).
7164 This is needed when client certificate verifications fails,
7165 but an application-provided verification callback (set by
7166 SSL_CTX_set_cert_verify_callback) allows accepting the session
7167 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7168 but returns 1): When the session is reused, we have to set
7169 ssl->verify_result to the appropriate error code to avoid
7171 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7173 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7174 case in PKCS7_dataInit() where the signed PKCS7 structure
7175 didn't contain any existing data because it was being created.
7176 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7178 *) Add a salt to the key derivation routines in enc.c. This
7179 forms the first 8 bytes of the encrypted file. Also add a
7180 -S option to allow a salt to be input on the command line.
7183 *) New function X509_cmp(). Oddly enough there wasn't a function
7184 to compare two certificates. We do this by working out the SHA1
7185 hash and comparing that. X509_cmp() will be needed by the trust
7189 *) SSL_get1_session() is like SSL_get_session(), but increments
7190 the reference count in the SSL_SESSION returned.
7191 [Geoff Thorpe <geoff@eu.c2.net>]
7193 *) Fix for 'req': it was adding a null to request attributes.
7194 Also change the X509_LOOKUP and X509_INFO code to handle
7195 certificate auxiliary information.
7198 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7202 *) Add the possibility to add extra information to the memory leak
7203 detecting output, to form tracebacks, showing from where each
7204 allocation was originated: CRYPTO_push_info("constant string") adds
7205 the string plus current file name and line number to a per-thread
7206 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7207 is like calling CYRPTO_pop_info() until the stack is empty.
7208 Also updated memory leak detection code to be multi-thread-safe.
7211 *) Add options -text and -noout to pkcs7 utility and delete the
7212 encryption options which never did anything. Update docs.
7215 *) Add options to some of the utilities to allow the pass phrase
7216 to be included on either the command line (not recommended on
7217 OSes like Unix) or read from the environment. Update the
7218 manpages and fix a few bugs.
7221 *) Add a few manpages for some of the openssl commands.
7224 *) Fix the -revoke option in ca. It was freeing up memory twice,
7225 leaking and not finding already revoked certificates.
7228 *) Extensive changes to support certificate auxiliary information.
7229 This involves the use of X509_CERT_AUX structure and X509_AUX
7230 functions. An X509_AUX function such as PEM_read_X509_AUX()
7231 can still read in a certificate file in the usual way but it
7232 will also read in any additional "auxiliary information". By
7233 doing things this way a fair degree of compatibility can be
7234 retained: existing certificates can have this information added
7235 using the new 'x509' options.
7237 Current auxiliary information includes an "alias" and some trust
7238 settings. The trust settings will ultimately be used in enhanced
7239 certificate chain verification routines: currently a certificate
7240 can only be trusted if it is self signed and then it is trusted
7244 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7245 The problem was that one of the replacement routines had not been working
7246 since SSLeay releases. For now the offending routine has been replaced
7247 with non-optimised assembler. Even so, this now gives around 95%
7248 performance improvement for 1024 bit RSA signs.
7251 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7252 handling. Most clients have the effective key size in bits equal to
7253 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7254 A few however don't do this and instead use the size of the decrypted key
7255 to determine the RC2 key length and the AlgorithmIdentifier to determine
7256 the effective key length. In this case the effective key length can still
7257 be 40 bits but the key length can be 168 bits for example. This is fixed
7258 by manually forcing an RC2 key into the EVP_PKEY structure because the
7259 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7260 the key length and effective key length are equal.
7263 *) Add a bunch of functions that should simplify the creation of
7264 X509_NAME structures. Now you should be able to do:
7265 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7266 and have it automatically work out the correct field type and fill in
7267 the structures. The more adventurous can try:
7268 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7269 and it will (hopefully) work out the correct multibyte encoding.
7272 *) Change the 'req' utility to use the new field handling and multibyte
7273 copy routines. Before the DN field creation was handled in an ad hoc
7274 way in req, ca, and x509 which was rather broken and didn't support
7275 BMPStrings or UTF8Strings. Since some software doesn't implement
7276 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7277 using the dirstring_type option. See the new comment in the default
7278 openssl.cnf for more info.
7281 *) Make crypto/rand/md_rand.c more robust:
7282 - Assure unique random numbers after fork().
7283 - Make sure that concurrent threads access the global counter and
7284 md serializably so that we never lose entropy in them
7285 or use exactly the same state in multiple threads.
7286 Access to the large state is not always serializable because
7287 the additional locking could be a performance killer, and
7288 md should be large enough anyway.
7291 *) New file apps/app_rand.c with commonly needed functionality
7292 for handling the random seed file.
7294 Use the random seed file in some applications that previously did not:
7296 dsaparam -genkey (which also ignored its '-rand' option),
7299 x509 (when signing).
7300 Except on systems with /dev/urandom, it is crucial to have a random
7301 seed file at least for key creation, DSA signing, and for DH exchanges;
7302 for RSA signatures we could do without one.
7304 gendh and gendsa (unlike genrsa) used to read only the first byte
7305 of each file listed in the '-rand' option. The function as previously
7306 found in genrsa is now in app_rand.c and is used by all programs
7307 that support '-rand'.
7310 *) In RAND_write_file, use mode 0600 for creating files;
7311 don't just chmod when it may be too late.
7314 *) Report an error from X509_STORE_load_locations
7315 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7318 *) New function ASN1_mbstring_copy() this copies a string in either
7319 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7320 into an ASN1_STRING type. A mask of permissible types is passed
7321 and it chooses the "minimal" type to use or an error if not type
7325 *) Add function equivalents to the various macros in asn1.h. The old
7326 macros are retained with an M_ prefix. Code inside the library can
7327 use the M_ macros. External code (including the openssl utility)
7328 should *NOT* in order to be "shared library friendly".
7331 *) Add various functions that can check a certificate's extensions
7332 to see if it usable for various purposes such as SSL client,
7333 server or S/MIME and CAs of these types. This is currently
7334 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7335 verification. Also added a -purpose flag to x509 utility to
7336 print out all the purposes.
7339 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7343 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7344 for, obtain and decode and extension and obtain its critical flag.
7345 This allows all the necessary extension code to be handled in a
7346 single function call.
7349 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7350 platforms. See crypto/rc4/rc4_enc.c for further details.
7353 *) New -noout option to asn1parse. This causes no output to be produced
7354 its main use is when combined with -strparse and -out to extract data
7355 from a file (which may not be in ASN.1 format).
7358 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7359 when producing the local key id.
7360 [Richard Levitte <levitte@stacken.kth.se>]
7362 *) New option -dhparam in s_server. This allows a DH parameter file to be
7363 stated explicitly. If it is not stated then it tries the first server
7364 certificate file. The previous behaviour hard coded the filename
7368 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7369 a public key to be input or output. For example:
7370 openssl rsa -in key.pem -pubout -out pubkey.pem
7371 Also added necessary DSA public key functions to handle this.
7374 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7375 in the message. This was handled by allowing
7376 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7377 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7379 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7380 to the end of the strings whereas this didn't. This would cause problems
7381 if strings read with d2i_ASN1_bytes() were later modified.
7382 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7384 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7385 data and it contains EOF it will end up returning an error. This is
7386 caused by input 46 bytes long. The cause is due to the way base64
7387 BIOs find the start of base64 encoded data. They do this by trying a
7388 trial decode on each line until they find one that works. When they
7389 do a flag is set and it starts again knowing it can pass all the
7390 data directly through the decoder. Unfortunately it doesn't reset
7391 the context it uses. This means that if EOF is reached an attempt
7392 is made to pass two EOFs through the context and this causes the
7393 resulting error. This can also cause other problems as well. As is
7394 usual with these problems it takes *ages* to find and the fix is
7395 trivial: move one line.
7396 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7398 *) Ugly workaround to get s_client and s_server working under Windows. The
7399 old code wouldn't work because it needed to select() on sockets and the
7400 tty (for keypresses and to see if data could be written). Win32 only
7401 supports select() on sockets so we select() with a 1s timeout on the
7402 sockets and then see if any characters are waiting to be read, if none
7403 are present then we retry, we also assume we can always write data to
7404 the tty. This isn't nice because the code then blocks until we've
7405 received a complete line of data and it is effectively polling the
7406 keyboard at 1s intervals: however it's quite a bit better than not
7407 working at all :-) A dedicated Windows application might handle this
7408 with an event loop for example.
7411 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7412 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7413 will be called when RSA_sign() and RSA_verify() are used. This is useful
7414 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7415 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7416 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7417 This necessitated the support of an extra signature type NID_md5_sha1
7418 for SSL signatures and modifications to the SSL library to use it instead
7419 of calling RSA_public_decrypt() and RSA_private_encrypt().
7422 *) Add new -verify -CAfile and -CApath options to the crl program, these
7423 will lookup a CRL issuers certificate and verify the signature in a
7424 similar way to the verify program. Tidy up the crl program so it
7425 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7426 less strict. It will now permit CRL extensions even if it is not
7427 a V2 CRL: this will allow it to tolerate some broken CRLs.
7430 *) Initialize all non-automatic variables each time one of the openssl
7431 sub-programs is started (this is necessary as they may be started
7432 multiple times from the "OpenSSL>" prompt).
7433 [Lennart Bang, Bodo Moeller]
7435 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7436 removing all other RSA functionality (this is what NO_RSA does). This
7437 is so (for example) those in the US can disable those operations covered
7438 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7442 *) Non-copying interface to BIO pairs.
7443 (still largely untested)
7446 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7447 ASCII string. This was handled independently in various places before.
7450 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7451 UTF8 strings a character at a time.
7454 *) Use client_version from client hello to select the protocol
7455 (s23_srvr.c) and for RSA client key exchange verification
7456 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7459 *) Add various utility functions to handle SPKACs, these were previously
7460 handled by poking round in the structure internals. Added new function
7461 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7462 print, verify and generate SPKACs. Based on an original idea from
7463 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7466 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7469 *) Allow the config file extension section to be overwritten on the
7470 command line. Based on an original idea from Massimiliano Pala
7471 <madwolf@comune.modena.it>. The new option is called -extensions
7472 and can be applied to ca, req and x509. Also -reqexts to override
7473 the request extensions in req and -crlexts to override the crl extensions
7477 *) Add new feature to the SPKAC handling in ca. Now you can include
7478 the same field multiple times by preceding it by "XXXX." for example:
7481 this is the same syntax as used in the req config file.
7484 *) Allow certificate extensions to be added to certificate requests. These
7485 are specified in a 'req_extensions' option of the req section of the
7486 config file. They can be printed out with the -text option to req but
7487 are otherwise ignored at present.
7490 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7491 data read consists of only the final block it would not decrypted because
7492 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7493 A misplaced 'break' also meant the decrypted final block might not be
7494 copied until the next read.
7497 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7498 a few extra parameters to the DH structure: these will be useful if
7499 for example we want the value of 'q' or implement X9.42 DH.
7502 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7503 provides hooks that allow the default DSA functions or functions on a
7504 "per key" basis to be replaced. This allows hardware acceleration and
7505 hardware key storage to be handled without major modification to the
7506 library. Also added low level modexp hooks and CRYPTO_EX structure and
7507 associated functions.
7510 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7511 as "read only": it can't be written to and the buffer it points to will
7512 not be freed. Reading from a read only BIO is much more efficient than
7513 a normal memory BIO. This was added because there are several times when
7514 an area of memory needs to be read from a BIO. The previous method was
7515 to create a memory BIO and write the data to it, this results in two
7516 copies of the data and an O(n^2) reading algorithm. There is a new
7517 function BIO_new_mem_buf() which creates a read only memory BIO from
7518 an area of memory. Also modified the PKCS#7 routines to use read only
7522 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7523 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7524 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7525 but a retry condition occured while trying to read the rest.
7528 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7529 NID_pkcs7_encrypted by default: this was wrong since this should almost
7530 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7531 the encrypted data type: this is a more sensible place to put it and it
7532 allows the PKCS#12 code to be tidied up that duplicated this
7536 *) Changed obj_dat.pl script so it takes its input and output files on
7537 the command line. This should avoid shell escape redirection problems
7541 *) Initial support for certificate extension requests, these are included
7542 in things like Xenroll certificate requests. Included functions to allow
7543 extensions to be obtained and added.
7546 *) -crlf option to s_client and s_server for sending newlines as
7547 CRLF (as required by many protocols).
7550 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7552 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7553 [Ralf S. Engelschall]
7555 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7556 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7558 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7562 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7563 DH parameters/keys (q is lost during that conversion, but the resulting
7564 DH parameters contain its length).
7566 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7567 much faster than DH_generate_parameters (which creates parameters
7568 where p = 2*q + 1), and also the smaller q makes DH computations
7569 much more efficient (160-bit exponentiation instead of 1024-bit
7570 exponentiation); so this provides a convenient way to support DHE
7571 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7572 utter importance to use
7573 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7575 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7576 when such DH parameters are used, because otherwise small subgroup
7577 attacks may become possible!
7580 *) Avoid memory leak in i2d_DHparams.
7583 *) Allow the -k option to be used more than once in the enc program:
7584 this allows the same encrypted message to be read by multiple recipients.
7587 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7588 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7589 it will always use the numerical form of the OID, even if it has a short
7593 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7594 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7595 otherwise bn_mod_exp was called. In the case of hardware keys for example
7596 no private key components need be present and it might store extra data
7597 in the RSA structure, which cannot be accessed from bn_mod_exp.
7598 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7599 private key operations.
7602 *) Added support for SPARC Linux.
7605 *) pem_password_cb function type incompatibly changed from
7606 typedef int pem_password_cb(char *buf, int size, int rwflag);
7608 ....(char *buf, int size, int rwflag, void *userdata);
7609 so that applications can pass data to their callbacks:
7610 The PEM[_ASN1]_{read,write}... functions and macros now take an
7611 additional void * argument, which is just handed through whenever
7612 the password callback is called.
7613 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7615 New function SSL_CTX_set_default_passwd_cb_userdata.
7617 Compatibility note: As many C implementations push function arguments
7618 onto the stack in reverse order, the new library version is likely to
7619 interoperate with programs that have been compiled with the old
7620 pem_password_cb definition (PEM_whatever takes some data that
7621 happens to be on the stack as its last argument, and the callback
7622 just ignores this garbage); but there is no guarantee whatsoever that
7625 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7626 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7627 problems not only on Windows, but also on some Unix platforms.
7628 To avoid problematic command lines, these definitions are now in an
7629 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7630 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7633 *) MIPS III/IV assembler module is reimplemented.
7636 *) More DES library cleanups: remove references to srand/rand and
7637 delete an unused file.
7640 *) Add support for the the free Netwide assembler (NASM) under Win32,
7641 since not many people have MASM (ml) and it can be hard to obtain.
7642 This is currently experimental but it seems to work OK and pass all
7643 the tests. Check out INSTALL.W32 for info.
7646 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7647 without temporary keys kept an extra copy of the server key,
7648 and connections with temporary keys did not free everything in case
7652 *) New function RSA_check_key and new openssl rsa option -check
7653 for verifying the consistency of RSA keys.
7654 [Ulf Moeller, Bodo Moeller]
7656 *) Various changes to make Win32 compile work:
7657 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7658 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7659 comparison" warnings.
7660 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7663 *) Add a debugging option to PKCS#5 v2 key generation function: when
7664 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7665 derived keys are printed to stderr.
7668 *) Copy the flags in ASN1_STRING_dup().
7669 [Roman E. Pavlov <pre@mo.msk.ru>]
7671 *) The x509 application mishandled signing requests containing DSA
7672 keys when the signing key was also DSA and the parameters didn't match.
7674 It was supposed to omit the parameters when they matched the signing key:
7675 the verifying software was then supposed to automatically use the CA's
7676 parameters if they were absent from the end user certificate.
7678 Omitting parameters is no longer recommended. The test was also
7679 the wrong way round! This was probably due to unusual behaviour in
7680 EVP_cmp_parameters() which returns 1 if the parameters match.
7681 This meant that parameters were omitted when they *didn't* match and
7682 the certificate was useless. Certificates signed with 'ca' didn't have
7684 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7686 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7687 The interface is as follows:
7688 Applications can use
7689 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7690 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7691 "off" is now the default.
7692 The library internally uses
7693 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7694 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7695 to disable memory-checking temporarily.
7697 Some inconsistent states that previously were possible (and were
7698 even the default) are now avoided.
7700 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7701 with each memory chunk allocated; this is occasionally more helpful
7702 than just having a counter.
7704 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7706 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7710 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7711 which largely parallels "options", but is for changing API behaviour,
7712 whereas "options" are about protocol behaviour.
7713 Initial "mode" flags are:
7715 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7716 a single record has been written.
7717 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7718 retries use the same buffer location.
7719 (But all of the contents must be
7723 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7726 *) Fix problems with no-hmac etc.
7727 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7729 *) New functions RSA_get_default_method(), RSA_set_method() and
7730 RSA_get_method(). These allows replacement of RSA_METHODs without having
7731 to mess around with the internals of an RSA structure.
7734 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7735 Also really enable memory leak checks in openssl.c and in some
7737 [Chad C. Mulligan, Bodo Moeller]
7739 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7740 up the length of negative integers. This has now been simplified to just
7741 store the length when it is first determined and use it later, rather
7742 than trying to keep track of where data is copied and updating it to
7744 [Steve Henson, reported by Brien Wheeler
7745 <bwheeler@authentica-security.com>]
7747 *) Add a new function PKCS7_signatureVerify. This allows the verification
7748 of a PKCS#7 signature but with the signing certificate passed to the
7749 function itself. This contrasts with PKCS7_dataVerify which assumes the
7750 certificate is present in the PKCS#7 structure. This isn't always the
7751 case: certificates can be omitted from a PKCS#7 structure and be
7752 distributed by "out of band" means (such as a certificate database).
7755 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7756 function prototypes in pem.h, also change util/mkdef.pl to add the
7757 necessary function names.
7760 *) mk1mf.pl (used by Windows builds) did not properly read the
7761 options set by Configure in the top level Makefile, and Configure
7762 was not even able to write more than one option correctly.
7763 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7766 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7767 file to be loaded from a BIO or FILE pointer. The BIO version will
7768 for example allow memory BIOs to contain config info.
7771 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7772 Whoever hopes to achieve shared-library compatibility across versions
7773 must use this, not the compile-time macro.
7774 (Exercise 0.9.4: Which is the minimum library version required by
7776 Note: All this applies only to multi-threaded programs, others don't
7780 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7781 through a BIO pair triggered the default case, i.e.
7782 SSLerr(...,SSL_R_UNKNOWN_STATE).
7785 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7786 can use the SSL library even if none of the specific BIOs is
7790 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7791 for the encoded length.
7792 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7794 *) Add initial documentation of the X509V3 functions.
7797 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7798 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7799 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7800 secure PKCS#8 private key format with a high iteration count.
7803 *) Fix determination of Perl interpreter: A perl or perl5
7804 _directory_ in $PATH was also accepted as the interpreter.
7805 [Ralf S. Engelschall]
7807 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7808 wrong with it but it was very old and did things like calling
7809 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7813 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7814 to use the new extension code.
7817 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7818 with macros. This should make it easier to change their form, add extra
7819 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7823 *) Add to configuration table a new entry that can specify an alternative
7824 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7825 according to Mark Crispin <MRC@Panda.COM>.
7829 *) DES CBC did not update the IV. Weird.
7832 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7833 Changing the behaviour of the former might break existing programs --
7834 where IV updating is needed, des_ncbc_encrypt can be used.
7837 *) When bntest is run from "make test" it drives bc to check its
7838 calculations, as well as internally checking them. If an internal check
7839 fails, it needs to cause bc to give a non-zero result or make test carries
7840 on without noticing the failure. Fixed.
7843 *) DES library cleanups.
7846 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7847 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7848 ciphers. NOTE: although the key derivation function has been verified
7849 against some published test vectors it has not been extensively tested
7850 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7854 *) Instead of "mkdir -p", which is not fully portable, use new
7855 Perl script "util/mkdir-p.pl".
7858 *) Rewrite the way password based encryption (PBE) is handled. It used to
7859 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7860 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7861 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7862 the 'parameter' field of the AlgorithmIdentifier is passed to the
7863 underlying key generation function so it must do its own ASN1 parsing.
7864 This has also changed the EVP_PBE_CipherInit() function which now has a
7865 'parameter' argument instead of literal salt and iteration count values
7866 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7869 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7870 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7871 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7872 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7873 value was just used as a "magic string" and not used directly its
7874 value doesn't matter.
7877 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7881 *) "linux-sparc64" configuration (ultrapenguin).
7882 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7883 "linux-sparc" configuration.
7884 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7886 *) config now generates no-xxx options for missing ciphers.
7889 *) Support the EBCDIC character set (work in progress).
7890 File ebcdic.c not yet included because it has a different license.
7891 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7893 *) Support BS2000/OSD-POSIX.
7894 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7896 *) Make callbacks for key generation use void * instead of char *.
7899 *) Make S/MIME samples compile (not yet tested).
7902 *) Additional typesafe stacks.
7905 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7909 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7911 *) New configuration variant "sco5-gcc".
7913 *) Updated some demos.
7914 [Sean O Riordain, Wade Scholine]
7916 *) Add missing BIO_free at exit of pkcs12 application.
7919 *) Fix memory leak in conf.c.
7922 *) Updates for Win32 to assembler version of MD5.
7925 *) Set #! path to perl in apps/der_chop to where we found it
7926 instead of using a fixed path.
7929 *) SHA library changes for irix64-mips4-cc.
7932 *) Improvements for VMS support.
7936 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7938 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7939 This also avoids the problems with SC4.2 and unpatched SC5.
7940 [Andy Polyakov <appro@fy.chalmers.se>]
7942 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7943 These are required because of the typesafe stack would otherwise break
7944 existing code. If old code used a structure member which used to be STACK
7945 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7946 sk_num or sk_value it would produce an error because the num, data members
7947 are not present in STACK_OF. Now it just produces a warning. sk_set
7948 replaces the old method of assigning a value to sk_value
7949 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7950 that does this will no longer work (and should use sk_set instead) but
7951 this could be regarded as a "questionable" behaviour anyway.
7954 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7955 correctly handle encrypted S/MIME data.
7958 *) Change type of various DES function arguments from des_cblock
7959 (which means, in function argument declarations, pointer to char)
7960 to des_cblock * (meaning pointer to array with 8 char elements),
7961 which allows the compiler to do more typechecking; it was like
7962 that back in SSLeay, but with lots of ugly casts.
7964 Introduce new type const_des_cblock.
7967 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7968 problems: find RecipientInfo structure that matches recipient certificate
7969 and initialise the ASN1 structures properly based on passed cipher.
7972 *) Belatedly make the BN tests actually check the results.
7975 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7976 to and from BNs: it was completely broken. New compilation option
7977 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7978 key elements as negative integers.
7981 *) Reorganize and speed up MD5.
7982 [Andy Polyakov <appro@fy.chalmers.se>]
7985 [Richard Levitte <richard@levitte.org>]
7987 *) New option -out to asn1parse to allow the parsed structure to be
7988 output to a file. This is most useful when combined with the -strparse
7989 option to examine the output of things like OCTET STRINGS.
7992 *) Make SSL library a little more fool-proof by not requiring any longer
7993 that SSL_set_{accept,connect}_state be called before
7994 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7995 in many applications because usually everything *appeared* to work as
7996 intended anyway -- now it really works as intended).
7999 *) Move openssl.cnf out of lib/.
8002 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8003 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8004 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8005 [Ralf S. Engelschall]
8007 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8008 handle PKCS#7 enveloped data properly.
8009 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8011 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8012 copying pointers. The cert_st handling is changed by this in
8013 various ways (and thus what used to be known as ctx->default_cert
8014 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8015 any longer when s->cert does not give us what we need).
8016 ssl_cert_instantiate becomes obsolete by this change.
8017 As soon as we've got the new code right (possibly it already is?),
8018 we have solved a couple of bugs of the earlier code where s->cert
8019 was used as if it could not have been shared with other SSL structures.
8021 Note that using the SSL API in certain dirty ways now will result
8022 in different behaviour than observed with earlier library versions:
8023 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8024 does not influence s as it used to.
8026 In order to clean up things more thoroughly, inside SSL_SESSION
8027 we don't use CERT any longer, but a new structure SESS_CERT
8028 that holds per-session data (if available); currently, this is
8029 the peer's certificate chain and, for clients, the server's certificate
8030 and temporary key. CERT holds only those values that can have
8031 meaningful defaults in an SSL_CTX.
8034 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8035 from the internal representation. Various PKCS#7 fixes: remove some
8036 evil casts and set the enc_dig_alg field properly based on the signing
8040 *) Allow PKCS#12 password to be set from the command line or the
8041 environment. Let 'ca' get its config file name from the environment
8042 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8046 *) Allow certificate policies extension to use an IA5STRING for the
8047 organization field. This is contrary to the PKIX definition but
8048 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8052 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8053 without disallowing inline assembler and the like for non-pedantic builds.
8056 *) Support Borland C++ builder.
8057 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8062 *) SHA-1 cleanups and performance enhancements.
8063 [Andy Polyakov <appro@fy.chalmers.se>]
8065 *) Sparc v8plus assembler for the bignum library.
8066 [Andy Polyakov <appro@fy.chalmers.se>]
8068 *) Accept any -xxx and +xxx compiler options in Configure.
8071 *) Update HPUX configuration.
8074 *) Add missing sk_<type>_unshift() function to safestack.h
8075 [Ralf S. Engelschall]
8077 *) New function SSL_CTX_use_certificate_chain_file that sets the
8078 "extra_cert"s in addition to the certificate. (This makes sense
8079 only for "PEM" format files, as chains as a whole are not
8083 *) Support verify_depth from the SSL API.
8084 x509_vfy.c had what can be considered an off-by-one-error:
8085 Its depth (which was not part of the external interface)
8086 was actually counting the number of certificates in a chain;
8087 now it really counts the depth.
8090 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8091 instead of X509err, which often resulted in confusing error
8092 messages since the error codes are not globally unique
8093 (e.g. an alleged error in ssl3_accept when a certificate
8094 didn't match the private key).
8096 *) New function SSL_CTX_set_session_id_context that allows to set a default
8097 value (so that you don't need SSL_set_session_id_context for each
8098 connection using the SSL_CTX).
8101 *) OAEP decoding bug fix.
8104 *) Support INSTALL_PREFIX for package builders, as proposed by
8108 *) New Configure options "threads" and "no-threads". For systems
8109 where the proper compiler options are known (currently Solaris
8110 and Linux), "threads" is the default.
8113 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8116 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8117 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8118 such as /usr/local/bin.
8121 *) "make linux-shared" to build shared libraries.
8122 [Niels Poppe <niels@netbox.org>]
8124 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8127 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8128 extension adding in x509 utility.
8131 *) Remove NOPROTO sections and error code comments.
8134 *) Partial rewrite of the DEF file generator to now parse the ANSI
8138 *) New Configure options --prefix=DIR and --openssldir=DIR.
8141 *) Complete rewrite of the error code script(s). It is all now handled
8142 by one script at the top level which handles error code gathering,
8143 header rewriting and C source file generation. It should be much better
8144 than the old method: it now uses a modified version of Ulf's parser to
8145 read the ANSI prototypes in all header files (thus the old K&R definitions
8146 aren't needed for error creation any more) and do a better job of
8147 translating function codes into names. The old 'ASN1 error code imbedded
8148 in a comment' is no longer necessary and it doesn't use .err files which
8149 have now been deleted. Also the error code call doesn't have to appear all
8150 on one line (which resulted in some large lines...).
8153 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8156 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8157 0 (which usually indicates a closed connection), but continue reading.
8160 *) Fix some race conditions.
8163 *) Add support for CRL distribution points extension. Add Certificate
8164 Policies and CRL distribution points documentation.
8167 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8170 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8171 8 of keying material. Merlin has also confirmed interop with this fix
8172 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8173 [Merlin Hughes <merlin@baltimore.ie>]
8175 *) Fix lots of warnings.
8176 [Richard Levitte <levitte@stacken.kth.se>]
8178 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8179 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8180 [Richard Levitte <levitte@stacken.kth.se>]
8182 *) Fix problems with sizeof(long) == 8.
8183 [Andy Polyakov <appro@fy.chalmers.se>]
8185 *) Change functions to ANSI C.
8188 *) Fix typos in error codes.
8189 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8191 *) Remove defunct assembler files from Configure.
8194 *) SPARC v8 assembler BIGNUM implementation.
8195 [Andy Polyakov <appro@fy.chalmers.se>]
8197 *) Support for Certificate Policies extension: both print and set.
8198 Various additions to support the r2i method this uses.
8201 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8202 return a const string when you are expecting an allocated buffer.
8205 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8206 types DirectoryString and DisplayText.
8209 *) Add code to allow r2i extensions to access the configuration database,
8210 add an LHASH database driver and add several ctx helper functions.
8213 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8214 fail when they extended the size of a BIGNUM.
8217 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8218 support typesafe stack.
8221 *) Fix typo in SSL_[gs]et_options().
8222 [Nils Frostberg <nils@medcom.se>]
8224 *) Delete various functions and files that belonged to the (now obsolete)
8225 old X509V3 handling code.
8228 *) New Configure option "rsaref".
8231 *) Don't auto-generate pem.h.
8234 *) Introduce type-safe ASN.1 SETs.
8237 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8238 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8240 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8241 that links with OpenSSL (well at least cause lots of warnings), but fear
8242 not: the conversion is trivial, and it eliminates loads of evil casts. A
8243 few STACKed things have been converted already. Feel free to convert more.
8244 In the fullness of time, I'll do away with the STACK type altogether.
8247 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8248 specified in <certfile> by updating the entry in the index.txt file.
8249 This way one no longer has to edit the index.txt file manually for
8250 revoking a certificate. The -revoke option does the gory details now.
8251 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8253 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8254 `-text' option at all and this way the `-noout -text' combination was
8255 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8256 [Ralf S. Engelschall]
8258 *) Make sure a corresponding plain text error message exists for the
8259 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8260 verify callback function determined that a certificate was revoked.
8261 [Ralf S. Engelschall]
8263 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8264 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8265 all available cipers including rc5, which was forgotten until now.
8266 In order to let the testing shell script know which algorithms
8267 are available, a new (up to now undocumented) command
8268 "openssl list-cipher-commands" is used.
8271 *) Bugfix: s_client occasionally would sleep in select() when
8272 it should have checked SSL_pending() first.
8275 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8276 the raw DSA values prior to ASN.1 encoding.
8279 *) Tweaks to Configure
8280 [Niels Poppe <niels@netbox.org>]
8282 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8286 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8289 *) New config option to avoid instructions that are illegal on the 80386.
8290 The default code is faster, but requires at least a 486.
8293 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8294 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8295 same as SSL2_VERSION anyway.
8298 *) New "-showcerts" option for s_client.
8301 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8302 application. Various cleanups and fixes.
8305 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8306 modify error routines to work internally. Add error codes and PBE init
8307 to library startup routines.
8310 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8311 packing functions to asn1 and evp. Changed function names and error
8312 codes along the way.
8315 *) PKCS12 integration: and so it begins... First of several patches to
8316 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8317 objects to objects.h
8320 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8321 and display support for Thawte strong extranet extension.
8324 *) Add LinuxPPC support.
8325 [Jeff Dubrule <igor@pobox.org>]
8327 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8328 bn_div_words in alpha.s.
8329 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8331 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8332 OAEP isn't supported when OpenSSL is built with RSAref.
8333 [Ulf Moeller <ulf@fitug.de>]
8335 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8336 so they no longer are missing under -DNOPROTO.
8337 [Soren S. Jorvang <soren@t.dk>]
8340 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8342 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8343 doesn't work when the session is reused. Coming soon!
8346 *) Fix a security hole, that allows sessions to be reused in the wrong
8347 context thus bypassing client cert protection! All software that uses
8348 client certs and session caches in multiple contexts NEEDS PATCHING to
8349 allow session reuse! A fuller solution is in the works.
8350 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8352 *) Some more source tree cleanups (removed obsolete files
8353 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8354 permission on "config" script to be executable) and a fix for the INSTALL
8356 [Ulf Moeller <ulf@fitug.de>]
8358 *) Remove some legacy and erroneous uses of malloc, free instead of
8360 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8362 *) Make rsa_oaep_test return non-zero on error.
8363 [Ulf Moeller <ulf@fitug.de>]
8365 *) Add support for native Solaris shared libraries. Configure
8366 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8367 if someone would make that last step automatic.
8368 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8370 *) ctx_size was not built with the right compiler during "make links". Fixed.
8373 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8374 except NULL ciphers". This means the default cipher list will no longer
8375 enable NULL ciphers. They need to be specifically enabled e.g. with
8376 the string "DEFAULT:eNULL".
8379 *) Fix to RSA private encryption routines: if p < q then it would
8380 occasionally produce an invalid result. This will only happen with
8381 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8384 *) Be less restrictive and allow also `perl util/perlpath.pl
8385 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8386 because this way one can also use an interpreter named `perl5' (which is
8387 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8388 installed as `perl').
8389 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8391 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8392 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8394 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8395 advapi32.lib to Win32 build and change the pem test comparision
8396 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8397 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8398 and crypto/des/ede_cbcm_enc.c.
8401 *) DES quad checksum was broken on big-endian architectures. Fixed.
8404 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8405 Win32 test batch file so it (might) work again. The Win32 test batch file
8406 is horrible: I feel ill....
8409 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8410 in e_os.h. Audit of header files to check ANSI and non ANSI
8411 sections: 10 functions were absent from non ANSI section and not exported
8412 from Windows DLLs. Fixed up libeay.num for new functions.
8415 *) Make `openssl version' output lines consistent.
8416 [Ralf S. Engelschall]
8418 *) Fix Win32 symbol export lists for BIO functions: Added
8419 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8420 to ms/libeay{16,32}.def.
8421 [Ralf S. Engelschall]
8423 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8424 fine under Unix and passes some trivial tests I've now added. But the
8425 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8426 added to make sure no one expects that this stuff really works in the
8427 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8428 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8430 [Ralf S. Engelschall]
8432 *) Fix the generation of two part addresses in perl.
8433 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8435 *) Add config entry for Linux on MIPS.
8436 [John Tobey <jtobey@channel1.com>]
8438 *) Make links whenever Configure is run, unless we are on Windoze.
8441 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8442 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8446 *) Add a useful kludge to allow package maintainers to specify compiler and
8447 other platforms details on the command line without having to patch the
8448 Configure script everytime: One now can use ``perl Configure
8449 <id>:<details>'', i.e. platform ids are allowed to have details appended
8450 to them (seperated by colons). This is treated as there would be a static
8451 pre-configured entry in Configure's %table under key <id> with value
8452 <details> and ``perl Configure <id>'' is called. So, when you want to
8453 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8454 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8455 now, which overrides the FreeBSD-elf entry on-the-fly.
8456 [Ralf S. Engelschall]
8458 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8461 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8462 on the `perl Configure ...' command line. This way one can compile
8463 OpenSSL libraries with Position Independent Code (PIC) which is needed
8464 for linking it into DSOs.
8465 [Ralf S. Engelschall]
8467 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8471 *) Cleaned up the LICENSE document: The official contact for any license
8472 questions now is the OpenSSL core team under openssl-core@openssl.org.
8473 And add a paragraph about the dual-license situation to make sure people
8474 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8475 to the OpenSSL toolkit.
8476 [Ralf S. Engelschall]
8478 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8479 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8480 Additonally cleaned up the `make links' target: Remove unnecessary
8481 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8482 to speed processing and no longer clutter the display with confusing
8483 stuff. Instead only the actually done links are displayed.
8484 [Ralf S. Engelschall]
8486 *) Permit null encryption ciphersuites, used for authentication only. It used
8487 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8488 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8492 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8493 signed attributes when verifying signatures (this would break them),
8494 the detached data encoding was wrong and public keys obtained using
8495 X509_get_pubkey() weren't freed.
8498 *) Add text documentation for the BUFFER functions. Also added a work around
8499 to a Win95 console bug. This was triggered by the password read stuff: the
8500 last character typed gets carried over to the next fread(). If you were
8501 generating a new cert request using 'req' for example then the last
8502 character of the passphrase would be CR which would then enter the first
8506 *) Added the new `Includes OpenSSL Cryptography Software' button as
8507 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8508 button and can be used by applications based on OpenSSL to show the
8509 relationship to the OpenSSL project.
8510 [Ralf S. Engelschall]
8512 *) Remove confusing variables in function signatures in files
8513 ssl/ssl_lib.c and ssl/ssl.h.
8514 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8516 *) Don't install bss_file.c under PREFIX/include/
8517 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8519 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8520 functions that return function pointers and has support for NT specific
8521 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8522 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8523 unsigned to signed types: this was killing the Win32 compile.
8526 *) Add new certificate file to stack functions,
8527 SSL_add_dir_cert_subjects_to_stack() and
8528 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8529 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8530 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8531 This means that Apache-SSL and similar packages don't have to mess around
8532 to add as many CAs as they want to the preferred list.
8535 *) Experiment with doxygen documentation. Currently only partially applied to
8537 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8538 openssl.doxy as the configuration file.
8541 *) Get rid of remaining C++-style comments which strict C compilers hate.
8542 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8544 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8545 compiled in by default: it has problems with large keys.
8548 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8549 DH private keys and/or callback functions which directly correspond to
8550 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8551 is needed for applications which have to configure certificates on a
8552 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8554 For the RSA certificate situation is makes no difference, but
8555 for the DSA certificate situation this fixes the "no shared cipher"
8556 problem where the OpenSSL cipher selection procedure failed because the
8557 temporary keys were not overtaken from the context and the API provided
8558 no way to reconfigure them.
8559 The new functions now let applications reconfigure the stuff and they
8560 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8561 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8562 non-public-API function ssl_cert_instantiate() is used as a helper
8563 function and also to reduce code redundancy inside ssl_rsa.c.
8564 [Ralf S. Engelschall]
8566 *) Move s_server -dcert and -dkey options out of the undocumented feature
8567 area because they are useful for the DSA situation and should be
8568 recognized by the users.
8569 [Ralf S. Engelschall]
8571 *) Fix the cipher decision scheme for export ciphers: the export bits are
8572 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8573 SSL_EXP_MASK. So, the original variable has to be used instead of the
8574 already masked variable.
8575 [Richard Levitte <levitte@stacken.kth.se>]
8577 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8578 [Richard Levitte <levitte@stacken.kth.se>]
8580 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8581 from `int' to `unsigned int' because it's a length and initialized by
8582 EVP_DigestFinal() which expects an `unsigned int *'.
8583 [Richard Levitte <levitte@stacken.kth.se>]
8585 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8586 script. Instead use the usual Shell->Perl transition trick.
8587 [Ralf S. Engelschall]
8589 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8590 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8591 -noout -modulus' as it's already the case for `openssl rsa -noout
8592 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8593 currently the public key is printed (a decision which was already done by
8594 `openssl dsa -modulus' in the past) which serves a similar purpose.
8595 Additionally the NO_RSA no longer completely removes the whole -modulus
8596 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8598 [Ralf S. Engelschall]
8600 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8601 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8602 [Arne Ansper <arne@ats.cyber.ee>]
8604 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8605 to be added. Now both 'req' and 'ca' can use new objects defined in the
8609 *) Add cool BIO that does syslog (or event log on NT).
8610 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8612 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8613 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8614 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8615 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8618 *) Add preliminary config info for new extension code.
8621 *) Make RSA_NO_PADDING really use no padding.
8622 [Ulf Moeller <ulf@fitug.de>]
8624 *) Generate errors when private/public key check is done.
8627 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8628 for some CRL extensions and new objects added.
8631 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8632 key usage extension and fuller support for authority key id.
8635 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8636 padding method for RSA, which is recommended for new applications in PKCS
8637 #1 v2.0 (RFC 2437, October 1998).
8638 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8639 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8640 against Bleichbacher's attack on RSA.
8641 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8644 *) Updates to the new SSL compression code
8645 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8647 *) Fix so that the version number in the master secret, when passed
8648 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8649 (because the server will not accept higher), that the version number
8650 is 0x03,0x01, not 0x03,0x00
8651 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8653 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8654 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8655 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8658 *) Support for RAW extensions where an arbitrary extension can be
8659 created by including its DER encoding. See apps/openssl.cnf for
8663 *) Make sure latest Perl versions don't interpret some generated C array
8664 code as Perl array code in the crypto/err/err_genc.pl script.
8665 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8667 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8668 not many people have the assembler. Various Win32 compilation fixes and
8669 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8673 *) Modify configure script 'Configure' to automatically create crypto/date.h
8674 file under Win32 and also build pem.h from pem.org. New script
8675 util/mkfiles.pl to create the MINFO file on environments that can't do a
8676 'make files': perl util/mkfiles.pl >MINFO should work.
8679 *) Major rework of DES function declarations, in the pursuit of correctness
8680 and purity. As a result, many evil casts evaporated, and some weirdness,
8681 too. You may find this causes warnings in your code. Zapping your evil
8682 casts will probably fix them. Mostly.
8685 *) Fix for a typo in asn1.h. Bug fix to object creation script
8686 obj_dat.pl. It considered a zero in an object definition to mean
8687 "end of object": none of the objects in objects.h have any zeros
8688 so it wasn't spotted.
8689 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8691 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8692 Masking (CBCM). In the absence of test vectors, the best I have been able
8693 to do is check that the decrypt undoes the encrypt, so far. Send me test
8694 vectors if you have them.
8697 *) Correct calculation of key length for export ciphers (too much space was
8698 allocated for null ciphers). This has not been tested!
8701 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8702 message is now correct (it understands "crypto" and "ssl" on its
8703 command line). There is also now an "update" option. This will update
8704 the util/ssleay.num and util/libeay.num files with any new functions.
8706 perl util/mkdef.pl crypto ssl update
8707 it will update them.
8710 *) Overhauled the Perl interface (perl/*):
8711 - ported BN stuff to OpenSSL's different BN library
8712 - made the perl/ source tree CVS-aware
8713 - renamed the package from SSLeay to OpenSSL (the files still contain
8714 their history because I've copied them in the repository)
8715 - removed obsolete files (the test scripts will be replaced
8716 by better Test::Harness variants in the future)
8717 [Ralf S. Engelschall]
8719 *) First cut for a very conservative source tree cleanup:
8720 1. merge various obsolete readme texts into doc/ssleay.txt
8721 where we collect the old documents and readme texts.
8722 2. remove the first part of files where I'm already sure that we no
8723 longer need them because of three reasons: either they are just temporary
8724 files which were left by Eric or they are preserved original files where
8725 I've verified that the diff is also available in the CVS via "cvs diff
8726 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8727 the crypto/md/ stuff).
8728 [Ralf S. Engelschall]
8730 *) More extension code. Incomplete support for subject and issuer alt
8731 name, issuer and authority key id. Change the i2v function parameters
8732 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8733 what that's for :-) Fix to ASN1 macro which messed up
8734 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8737 *) Preliminary support for ENUMERATED type. This is largely copied from the
8741 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8742 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8744 *) Make sure `make rehash' target really finds the `openssl' program.
8745 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8747 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8748 like to hear about it if this slows down other processors.
8751 *) Add CygWin32 platform information to Configure script.
8752 [Alan Batie <batie@aahz.jf.intel.com>]
8754 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8755 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8757 *) New program nseq to manipulate netscape certificate sequences
8760 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8764 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8765 but the BN code had some problems that would cause failures when
8766 doing certificate verification and some other functions.
8767 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8769 *) Add ASN1 and PEM code to support netscape certificate sequences.
8772 *) Add ASN1 and PEM code to support netscape certificate sequences.
8775 *) Add several PKIX and private extended key usage OIDs.
8778 *) Modify the 'ca' program to handle the new extension code. Modify
8779 openssl.cnf for new extension format, add comments.
8782 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8783 and add a sample to openssl.cnf so req -x509 now adds appropriate
8787 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8788 error code, add initial support to X509_print() and x509 application.
8791 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8792 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8793 stuff is currently isolated and isn't even compiled yet.
8796 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8797 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8798 Removed the versions check from X509 routines when loading extensions:
8799 this allows certain broken certificates that don't set the version
8800 properly to be processed.
8803 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8804 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8805 can still be regenerated with "make depend".
8808 *) Spelling mistake in C version of CAST-128.
8809 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8811 *) Changes to the error generation code. The perl script err-code.pl
8812 now reads in the old error codes and retains the old numbers, only
8813 adding new ones if necessary. It also only changes the .err files if new
8814 codes are added. The makefiles have been modified to only insert errors
8815 when needed (to avoid needlessly modifying header files). This is done
8816 by only inserting errors if the .err file is newer than the auto generated
8817 C file. To rebuild all the error codes from scratch (the old behaviour)
8818 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8819 or delete all the .err files.
8822 *) CAST-128 was incorrectly implemented for short keys. The C version has
8823 been fixed, but is untested. The assembler versions are also fixed, but
8824 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8825 to regenerate it if needed.
8826 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8827 Hagino <itojun@kame.net>]
8829 *) File was opened incorrectly in randfile.c.
8830 [Ulf Möller <ulf@fitug.de>]
8832 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8833 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8834 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8835 al: it's just almost always a UTCTime. Note this patch adds new error
8836 codes so do a "make errors" if there are problems.
8839 *) Correct Linux 1 recognition in config.
8840 [Ulf Möller <ulf@fitug.de>]
8842 *) Remove pointless MD5 hash when using DSA keys in ca.
8843 [Anonymous <nobody@replay.com>]
8845 *) Generate an error if given an empty string as a cert directory. Also
8846 generate an error if handed NULL (previously returned 0 to indicate an
8847 error, but didn't set one).
8848 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8850 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8853 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8854 parameters. This was causing a warning which killed off the Win32 compile.
8857 *) Remove C++ style comments from crypto/bn/bn_local.h.
8858 [Neil Costigan <neil.costigan@celocom.com>]
8860 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8861 based on a text string, looking up short and long names and finally
8862 "dot" format. The "dot" format stuff didn't work. Added new function
8863 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8864 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8865 OID is not part of the table.
8868 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8869 X509_LOOKUP_by_alias().
8872 *) Sort openssl functions by name.
8875 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8876 encryption from sample DSA keys (in case anyone is interested the password
8880 *) Make _all_ *_free functions accept a NULL pointer.
8881 [Frans Heymans <fheymans@isaserver.be>]
8883 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8885 [Anonymous <nobody@replay.com>]
8887 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8888 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8890 *) Don't blow it for numeric -newkey arguments to apps/req.
8891 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8893 *) Temp key "for export" tests were wrong in s3_srvr.c.
8894 [Anonymous <nobody@replay.com>]
8896 *) Add prototype for temp key callback functions
8897 SSL_CTX_set_tmp_{rsa,dh}_callback().
8900 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8901 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8904 *) X509_name_add_entry() freed the wrong thing after an error.
8905 [Arne Ansper <arne@ats.cyber.ee>]
8907 *) rsa_eay.c would attempt to free a NULL context.
8908 [Arne Ansper <arne@ats.cyber.ee>]
8910 *) BIO_s_socket() had a broken should_retry() on Windoze.
8911 [Arne Ansper <arne@ats.cyber.ee>]
8913 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8914 [Arne Ansper <arne@ats.cyber.ee>]
8916 *) Make sure the already existing X509_STORE->depth variable is initialized
8917 in X509_STORE_new(), but document the fact that this variable is still
8918 unused in the certificate verification process.
8919 [Ralf S. Engelschall]
8921 *) Fix the various library and apps files to free up pkeys obtained from
8922 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8925 *) Fix reference counting in X509_PUBKEY_get(). This makes
8926 demos/maurice/example2.c work, amongst others, probably.
8927 [Steve Henson and Ben Laurie]
8929 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8930 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8931 are no longer created. This way we have a single and consistent command
8932 line interface `openssl <command>', similar to `cvs <command>'.
8933 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8935 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8936 BIT STRING wrapper always have zero unused bits.
8939 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8942 *) Make the top-level INSTALL documentation easier to understand.
8945 *) Makefiles updated to exit if an error occurs in a sub-directory
8946 make (including if user presses ^C) [Paul Sutton]
8948 *) Make Montgomery context stuff explicit in RSA data structure.
8951 *) Fix build order of pem and err to allow for generated pem.h.
8954 *) Fix renumbering bug in X509_NAME_delete_entry().
8957 *) Enhanced the err-ins.pl script so it makes the error library number
8958 global and can add a library name. This is needed for external ASN1 and
8959 other error libraries.
8962 *) Fixed sk_insert which never worked properly.
8965 *) Fix ASN1 macros so they can handle indefinite length construted
8966 EXPLICIT tags. Some non standard certificates use these: they can now
8970 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8971 into a single doc/ssleay.txt bundle. This way the information is still
8972 preserved but no longer messes up this directory. Now it's new room for
8973 the new set of documenation files.
8974 [Ralf S. Engelschall]
8976 *) SETs were incorrectly DER encoded. This was a major pain, because they
8977 shared code with SEQUENCEs, which aren't coded the same. This means that
8978 almost everything to do with SETs or SEQUENCEs has either changed name or
8979 number of arguments.
8980 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8982 *) Fix test data to work with the above.
8985 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8986 was already fixed by Eric for 0.9.1 it seems.
8987 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8989 *) Autodetect FreeBSD3.
8992 *) Fix various bugs in Configure. This affects the following platforms:
8996 unixware-2.0-pentium
9000 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9001 before they are needed.
9004 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9008 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9010 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9011 changed SSLeay to OpenSSL in version strings.
9012 [Ralf S. Engelschall]
9014 *) Some fixups to the top-level documents.
9017 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9018 because the symlink to include/ was missing.
9019 [Ralf S. Engelschall]
9021 *) Incorporated the popular no-RSA/DSA-only patches
9022 which allow to compile a RSA-free SSLeay.
9023 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9025 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9026 when "ssleay" is still not found.
9027 [Ralf S. Engelschall]
9029 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9030 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9032 *) Updated the README file.
9033 [Ralf S. Engelschall]
9035 *) Added various .cvsignore files in the CVS repository subdirs
9036 to make a "cvs update" really silent.
9037 [Ralf S. Engelschall]
9039 *) Recompiled the error-definition header files and added
9040 missing symbols to the Win32 linker tables.
9041 [Ralf S. Engelschall]
9043 *) Cleaned up the top-level documents;
9044 o new files: CHANGES and LICENSE
9045 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9046 o merged COPYRIGHT into LICENSE
9047 o removed obsolete TODO file
9048 o renamed MICROSOFT to INSTALL.W32
9049 [Ralf S. Engelschall]
9051 *) Removed dummy files from the 0.9.1b source tree:
9052 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9053 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9054 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9055 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9056 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9057 [Ralf S. Engelschall]
9059 *) Added various platform portability fixes.
9062 *) The Genesis of the OpenSSL rpject:
9063 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9064 Young and Tim J. Hudson created while they were working for C2Net until
9066 [The OpenSSL Project]
9069 Changes between 0.9.0b and 0.9.1b [not released]
9071 *) Updated a few CA certificates under certs/
9074 *) Changed some BIGNUM api stuff.
9077 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9078 DGUX x86, Linux Alpha, etc.
9081 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9082 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9086 *) Add -strparse option to asn1pars program which parses nested
9088 [Dr Stephen Henson <shenson@bigfoot.com>]
9090 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9093 *) DSA fix for "ca" program.
9096 *) Added "-genkey" option to "dsaparam" program.
9099 *) Added RIPE MD160 (rmd160) message digest.
9102 *) Added -a (all) option to "ssleay version" command.
9105 *) Added PLATFORM define which is the id given to Configure.
9108 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9111 *) Extended the ASN.1 parser routines.
9114 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9117 *) Added a BN_CTX to the BN library.
9120 *) Fixed the weak key values in DES library
9123 *) Changed API in EVP library for cipher aliases.
9126 *) Added support for RC2/64bit cipher.
9129 *) Converted the lhash library to the crypto/mem.c functions.
9132 *) Added more recognized ASN.1 object ids.
9135 *) Added more RSA padding checks for SSL/TLS.
9138 *) Added BIO proxy/filter functionality.
9141 *) Added extra_certs to SSL_CTX which can be used
9142 send extra CA certificates to the client in the CA cert chain sending
9143 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9146 *) Now Fortezza is denied in the authentication phase because
9147 this is key exchange mechanism is not supported by SSLeay at all.
9150 *) Additional PKCS1 checks.
9153 *) Support the string "TLSv1" for all TLS v1 ciphers.
9156 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9157 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9160 *) Fixed a few memory leaks.
9163 *) Fixed various code and comment typos.
9166 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9167 bytes sent in the client random.
9168 [Edward Bishop <ebishop@spyglass.com>]