5 Changes between 0.9.8k and 1.0 [xx XXX xxxx]
7 *) Add ECDHE and PSK support to DTLS.
8 [Michael Tuexen <tuexen@fh-muenster.de>]
10 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
14 *) Add "missing" function EVP_MD_flags() (without this the only way to
15 retrieve a digest flags is by accessing the structure directly. Update
16 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
17 or cipher is registered as in the "from" argument. Print out all
18 registered digests in the dgst usage message instead of manually
19 attempting to work them out.
22 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
23 this allows the use of compression and extensions. Change default cipher
24 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
25 by default unless an application cipher string requests it.
28 *) Alter match criteria in PKCS12_parse(). It used to try to use local
29 key ids to find matching certificates and keys but some PKCS#12 files
30 don't follow the (somewhat unwritten) rules and this strategy fails.
31 Now just gather all certificates together and the first private key
32 then look for the first certificate that matches the key.
35 *) Support use of registered digest and cipher names for dgst and cipher
36 commands instead of having to add each one as a special case. So now
43 openssl dgst -sha256 foo
45 and this works for ENGINE based algorithms too.
49 *) Update Gost ENGINE to support parameter files.
50 [Victor B. Wagner <vitus@cryptocom.ru>]
52 *) Support GeneralizedTime in ca utility.
53 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
55 *) Enhance the hash format used for certificate directory links. The new
56 form uses the canonical encoding (meaning equivalent names will work
57 even if they aren't identical) and uses SHA1 instead of MD5. This form
58 is incompatible with the older format and as a result c_rehash should
59 be used to rebuild symbolic links.
62 *) Make PKCS#8 the default write format for private keys, replacing the
63 traditional format. This form is standardised, more secure and doesn't
64 include an implicit MD5 dependency.
67 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
68 committed to OpenSSL should pass this lot as a minimum.
71 *) Add session ticket override functionality for use by EAP-FAST.
72 [Jouni Malinen <j@w1.fi>]
74 *) Modify HMAC functions to return a value. Since these can be implemented
75 in an ENGINE errors can occur.
78 *) Type-checked OBJ_bsearch_ex.
81 *) Type-checked OBJ_bsearch. Also some constification necessitated
82 by type-checking. Still to come: TXT_DB, bsearch(?),
83 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
87 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
88 seconds to a tm structure directly, instead of going through OS
89 specific date routines. This avoids any issues with OS routines such
90 as the year 2038 bug. New *_adj() functions for ASN1 time structures
91 and X509_time_adj_ex() to cover the extended range. The existing
92 X509_time_adj() is still usable and will no longer have any date issues.
95 *) Delta CRL support. New use deltas option which will attempt to locate
96 and search any appropriate delta CRLs available.
98 This work was sponsored by Google.
101 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
102 code and add additional score elements. Validate alternate CRL paths
103 as part of the CRL checking and indicate a new error "CRL path validation
104 error" in this case. Applications wanting additional details can use
105 the verify callback and check the new "parent" field. If this is not
106 NULL CRL path validation is taking place. Existing applications wont
107 see this because it requires extended CRL support which is off by
110 This work was sponsored by Google.
113 *) Support for freshest CRL extension.
115 This work was sponsored by Google.
118 *) Initial indirect CRL support. Currently only supported in the CRLs
119 passed directly and not via lookup. Process certificate issuer
120 CRL entry extension and lookup CRL entries by bother issuer name
121 and serial number. Check and process CRL issuer entry in IDP extension.
123 This work was sponsored by Google.
126 *) Add support for distinct certificate and CRL paths. The CRL issuer
127 certificate is validated separately in this case. Only enabled if
128 an extended CRL support flag is set: this flag will enable additional
129 CRL functionality in future.
131 This work was sponsored by Google.
134 *) Add support for policy mappings extension.
136 This work was sponsored by Google.
139 *) Fixes to pathlength constraint, self issued certificate handling,
140 policy processing to align with RFC3280 and PKITS tests.
142 This work was sponsored by Google.
145 *) Support for name constraints certificate extension. DN, email, DNS
146 and URI types are currently supported.
148 This work was sponsored by Google.
151 *) To cater for systems that provide a pointer-based thread ID rather
152 than numeric, deprecate the current numeric thread ID mechanism and
153 replace it with a structure and associated callback type. This
154 mechanism allows a numeric "hash" to be extracted from a thread ID in
155 either case, and on platforms where pointers are larger than 'long',
156 mixing is done to help ensure the numeric 'hash' is usable even if it
157 can't be guaranteed unique. The default mechanism is to use "&errno"
158 as a pointer-based thread ID to distinguish between threads.
160 Applications that want to provide their own thread IDs should now use
161 CRYPTO_THREADID_set_callback() to register a callback that will call
162 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
164 Note that ERR_remove_state() is now deprecated, because it is tied
165 to the assumption that thread IDs are numeric. ERR_remove_state(0)
166 to free the current thread's error state should be replaced by
167 ERR_remove_thread_state(NULL).
169 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
170 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
171 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
172 application was previously providing a numeric thread callback that
173 was inappropriate for distinguishing threads, then uniqueness might
174 have been obtained with &errno that happened immediately in the
175 intermediate development versions of OpenSSL; this is no longer the
176 case, the numeric thread callback will now override the automatic use
178 [Geoff Thorpe, with help from Bodo Moeller]
180 *) Initial support for different CRL issuing certificates. This covers a
181 simple case where the self issued certificates in the chain exist and
182 the real CRL issuer is higher in the existing chain.
184 This work was sponsored by Google.
187 *) Removed effectively defunct crypto/store from the build.
190 *) Revamp of STACK to provide stronger type-checking. Still to come:
191 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
192 ASN1_STRING, CONF_VALUE.
195 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
196 RAM on SSL connections. This option can save about 34k per idle SSL.
199 *) Revamp of LHASH to provide stronger type-checking. Still to come:
200 STACK, TXT_DB, bsearch, qsort.
203 *) Initial support for Cryptographic Message Syntax (aka CMS) based
204 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
205 support for data, signedData, compressedData, digestedData and
206 encryptedData, envelopedData types included. Scripts to check against
207 RFC4134 examples draft and interop and consistency checks of many
208 content types and variants.
211 *) Add options to enc utility to support use of zlib compression BIO.
214 *) Extend mk1mf to support importing of options and assembly language
215 files from Configure script, currently only included in VC-WIN32.
216 The assembly language rules can now optionally generate the source
217 files from the associated perl scripts.
220 *) Implement remaining functionality needed to support GOST ciphersuites.
221 Interop testing has been performed using CryptoPro implementations.
222 [Victor B. Wagner <vitus@cryptocom.ru>]
224 *) s390x assembler pack.
227 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
231 *) Implement Opaque PRF Input TLS extension as specified in
232 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
233 official specification yet and no extension type assignment by
234 IANA exists, this extension (for now) will have to be explicitly
235 enabled when building OpenSSL by providing the extension number
236 to use. For example, specify an option
238 -DTLSEXT_TYPE_opaque_prf_input=0x9527
240 to the "config" or "Configure" script to enable the extension,
241 assuming extension number 0x9527 (which is a completely arbitrary
242 and unofficial assignment based on the MD5 hash of the Internet
243 Draft). Note that by doing so, you potentially lose
244 interoperability with other TLS implementations since these might
245 be using the same extension number for other purposes.
247 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
248 opaque PRF input value to use in the handshake. This will create
249 an interal copy of the length-'len' string at 'src', and will
250 return non-zero for success.
252 To get more control and flexibility, provide a callback function
255 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
256 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
260 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
263 Callback function 'cb' will be called in handshakes, and is
264 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
265 Argument 'arg' is for application purposes (the value as given to
266 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
267 be provided to the callback function). The callback function
268 has to return non-zero to report success: usually 1 to use opaque
269 PRF input just if possible, or 2 to enforce use of the opaque PRF
270 input. In the latter case, the library will abort the handshake
271 if opaque PRF input is not successfully negotiated.
273 Arguments 'peerinput' and 'len' given to the callback function
274 will always be NULL and 0 in the case of a client. A server will
275 see the client's opaque PRF input through these variables if
276 available (NULL and 0 otherwise). Note that if the server
277 provides an opaque PRF input, the length must be the same as the
278 length of the client's opaque PRF input.
280 Note that the callback function will only be called when creating
281 a new session (session resumption can resume whatever was
282 previously negotiated), and will not be called in SSL 2.0
283 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
284 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
285 for applications that need to enforce opaque PRF input.
289 *) Update ssl code to support digests other than SHA1+MD5 for handshake
292 [Victor B. Wagner <vitus@cryptocom.ru>]
294 *) Add RFC4507 support to OpenSSL. This includes the corrections in
295 RFC4507bis. The encrypted ticket format is an encrypted encoded
296 SSL_SESSION structure, that way new session features are automatically
299 If a client application caches session in an SSL_SESSION structure
300 support is transparent because tickets are now stored in the encoded
303 The SSL_CTX structure automatically generates keys for ticket
304 protection in servers so again support should be possible
305 with no application modification.
307 If a client or server wishes to disable RFC4507 support then the option
308 SSL_OP_NO_TICKET can be set.
310 Add a TLS extension debugging callback to allow the contents of any client
311 or server extensions to be examined.
313 This work was sponsored by Google.
316 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
317 OpenSSL should now compile cleanly on gcc 4.2
318 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
320 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
321 support including streaming MAC support: this is required for GOST
323 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
325 *) Add option -stream to use PKCS#7 streaming in smime utility. New
326 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
327 to output in BER and PEM format.
330 *) Experimental support for use of HMAC via EVP_PKEY interface. This
331 allows HMAC to be handled via the EVP_DigestSign*() interface. The
332 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
333 ENGINE support for HMAC keys which are unextractable. New -mac and
334 -macopt options to dgst utility.
337 *) New option -sigopt to dgst utility. Update dgst to use
338 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
339 alternative signing paramaters such as X9.31 or PSS in the dgst
343 *) Change ssl_cipher_apply_rule(), the internal function that does
344 the work each time a ciphersuite string requests enabling
345 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
346 removing ("!foo+bar") a class of ciphersuites: Now it maintains
347 the order of disabled ciphersuites such that those ciphersuites
348 that most recently went from enabled to disabled not only stay
349 in order with respect to each other, but also have higher priority
350 than other disabled ciphersuites the next time ciphersuites are
353 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
354 the same ciphersuites as with "HIGH" alone, but in a specific
355 order where the PSK ciphersuites come first (since they are the
356 most recently disabled ciphersuites when "HIGH" is parsed).
358 Also, change ssl_create_cipher_list() (using this new
359 funcionality) such that between otherwise identical
360 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
364 *) Change ssl_create_cipher_list() so that it automatically
365 arranges the ciphersuites in reasonable order before starting
366 to process the rule string. Thus, the definition for "DEFAULT"
367 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
368 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
369 This makes it much easier to arrive at a reasonable default order
370 in applications for which anonymous ciphers are OK (meaning
371 that you can't actually use DEFAULT).
372 [Bodo Moeller; suggested by Victor Duchovni]
374 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
375 processing) into multiple integers instead of setting
376 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
377 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
378 (These masks as well as the individual bit definitions are hidden
379 away into the non-exported interface ssl/ssl_locl.h, so this
380 change to the definition of the SSL_CIPHER structure shouldn't
381 affect applications.) This give us more bits for each of these
382 categories, so there is no longer a need to coagulate AES128 and
383 AES256 into a single algorithm bit, and to coagulate Camellia128
384 and Camellia256 into a single algorithm bit, which has led to all
387 Thus, among other things, the kludge introduced in 0.9.7m and
388 0.9.8e for masking out AES256 independently of AES128 or masking
389 out Camellia256 independently of AES256 is not needed here in 0.9.9.
391 With the change, we also introduce new ciphersuite aliases that
392 so far were missing: "AES128", "AES256", "CAMELLIA128", and
396 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
397 Use the leftmost N bytes of the signature input if the input is
398 larger than the prime q (with N being the size in bytes of q).
401 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
402 it yet and it is largely untested.
405 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
408 *) Initial incomplete changes to avoid need for function casts in OpenSSL
409 some compilers (gcc 4.2 and later) reject their use. Safestack is
410 reimplemented. Update ASN1 to avoid use of legacy functions.
413 *) Win32/64 targets are linked with Winsock2.
416 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
417 to external functions. This can be used to increase CRL handling
418 efficiency especially when CRLs are very large by (for example) storing
419 the CRL revoked certificates in a database.
422 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
423 new CRLs added to a directory can be used. New command line option
424 -verify_return_error to s_client and s_server. This causes real errors
425 to be returned by the verify callback instead of carrying on no matter
426 what. This reflects the way a "real world" verify callback would behave.
429 *) GOST engine, supporting several GOST algorithms and public key formats.
430 Kindly donated by Cryptocom.
433 *) Partial support for Issuing Distribution Point CRL extension. CRLs
434 partitioned by DP are handled but no indirect CRL or reason partitioning
435 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
436 selected via a scoring technique which handles IDP and AKID in CRLs.
439 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
440 will ultimately be used for all verify operations: this will remove the
441 X509_STORE dependency on certificate verification and allow alternative
442 lookup methods. X509_STORE based implementations of these two callbacks.
445 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
446 Modify get_crl() to find a valid (unexpired) CRL if possible.
449 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
450 this would be called X509_CRL_cmp() but that name is already used by
451 a function that just compares CRL issuer names. Cache several CRL
452 extensions in X509_CRL structure and cache CRLDP in X509.
455 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
456 this maps equivalent X509_NAME structures into a consistent structure.
457 Name comparison can then be performed rapidly using memcmp().
460 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
464 *) Allow digests to supply their own micalg string for S/MIME type using
465 the ctrl EVP_MD_CTRL_MICALG.
468 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
469 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
470 ctrl. It can then customise the structure before and/or after signing
474 *) New function OBJ_add_sigid() to allow application defined signature OIDs
475 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
476 to free up any added signature OIDs.
479 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
480 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
481 digest and cipher tables. New options added to openssl utility:
482 list-message-digest-algorithms and list-cipher-algorithms.
485 *) Change the array representation of binary polynomials: the list
486 of degrees of non-zero coefficients is now terminated with -1.
487 Previously it was terminated with 0, which was also part of the
488 value; thus, the array representation was not applicable to
489 polynomials where t^0 has coefficient zero. This change makes
490 the array representation useful in a more general context.
493 *) Various modifications and fixes to SSL/TLS cipher string
494 handling. For ECC, the code now distinguishes between fixed ECDH
495 with RSA certificates on the one hand and with ECDSA certificates
496 on the other hand, since these are separate ciphersuites. The
497 unused code for Fortezza ciphersuites has been removed.
499 For consistency with EDH, ephemeral ECDH is now called "EECDH"
500 (not "ECDHE"). For consistency with the code for DH
501 certificates, use of ECDH certificates is now considered ECDH
502 authentication, not RSA or ECDSA authentication (the latter is
503 merely the CA's signing algorithm and not actively used in the
506 The temporary ciphersuite alias "ECCdraft" is no longer
507 available, and ECC ciphersuites are no longer excluded from "ALL"
508 and "DEFAULT". The following aliases now exist for RFC 4492
509 ciphersuites, most of these by analogy with the DH case:
511 kECDHr - ECDH cert, signed with RSA
512 kECDHe - ECDH cert, signed with ECDSA
513 kECDH - ECDH cert (signed with either RSA or ECDSA)
514 kEECDH - ephemeral ECDH
515 ECDH - ECDH cert or ephemeral ECDH
521 AECDH - anonymous ECDH
522 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
526 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
527 Use correct micalg parameters depending on digest(s) in signed message.
530 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
531 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
534 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
535 an engine to register a method. Add ENGINE lookups for methods and
536 functional reference processing.
539 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
540 EVP_{Sign,Verify}* which allow an application to customise the signature
544 *) New -resign option to smime utility. This adds one or more signers
545 to an existing PKCS#7 signedData structure. Also -md option to use an
546 alternative message digest algorithm for signing.
549 *) Tidy up PKCS#7 routines and add new functions to make it easier to
550 create PKCS7 structures containing multiple signers. Update smime
551 application to support multiple signers.
554 *) New -macalg option to pkcs12 utility to allow setting of an alternative
558 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
559 Reorganize PBE internals to lookup from a static table using NIDs,
560 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
561 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
562 PRF which will be automatically used with PBES2.
565 *) Replace the algorithm specific calls to generate keys in "req" with the
569 *) Update PKCS#7 enveloped data routines to use new API. This is now
570 supported by any public key method supporting the encrypt operation. A
571 ctrl is added to allow the public key algorithm to examine or modify
572 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
576 *) Add a ctrl to asn1 method to allow a public key algorithm to express
577 a default digest type to use. In most cases this will be SHA1 but some
578 algorithms (such as GOST) need to specify an alternative digest. The
579 return value indicates how strong the prefernce is 1 means optional and
580 2 is mandatory (that is it is the only supported type). Modify
581 ASN1_item_sign() to accept a NULL digest argument to indicate it should
582 use the default md. Update openssl utilities to use the default digest
583 type for signing if it is not explicitly indicated.
586 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
587 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
588 signing method from the key type. This effectively removes the link
589 between digests and public key types.
592 *) Add an OID cross reference table and utility functions. Its purpose is to
593 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
594 rsaEncryption. This will allow some of the algorithm specific hackery
595 needed to use the correct OID to be removed.
598 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
599 structures for PKCS7_sign(). They are now set up by the relevant public
603 *) Add provisional EC pkey method with support for ECDSA and ECDH.
606 *) Add support for key derivation (agreement) in the API, DH method and
610 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
611 public and private key formats. As a side effect these add additional
612 command line functionality not previously available: DSA signatures can be
613 generated and verified using pkeyutl and DH key support and generation in
618 [Oliver Tappe <zooey@hirschkaefer.de>]
620 *) New make target "install_html_docs" installs HTML renditions of the
622 [Oliver Tappe <zooey@hirschkaefer.de>]
624 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
625 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
626 support key and parameter generation and add initial key generation
627 functionality for RSA.
630 *) Add functions for main EVP_PKEY_method operations. The undocumented
631 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
632 EVP_PKEY_{encrypt,decrypt}_old.
635 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
636 key API, doesn't do much yet.
639 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
640 public key algorithms. New option to openssl utility:
641 "list-public-key-algorithms" to print out info.
644 *) Implement the Supported Elliptic Curves Extension for
645 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
648 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
649 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
652 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
653 utilities such as rsa, dsa, dsaparam etc except they process any key
657 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
658 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
659 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
663 *) Initial support for pluggable public key ASN1.
664 De-spaghettify the public key ASN1 handling. Move public and private
665 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
666 algorithm specific handling to a single module within the relevant
667 algorithm directory. Add functions to allow (near) opaque processing
668 of public and private key structures.
671 *) Implement the Supported Point Formats Extension for
672 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
675 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
676 for the psk identity [hint] and the psk callback functions to the
677 SSL_SESSION, SSL and SSL_CTX structure.
680 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
684 SSL_CTX_use_psk_identity_hint
685 SSL_get_psk_identity_hint
687 SSL_use_psk_identity_hint
689 [Mika Kousa and Pasi Eronen of Nokia Corporation]
691 *) Add RFC 3161 compliant time stamp request creation, response generation
692 and response verification functionality.
693 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
695 *) Add initial support for TLS extensions, specifically for the server_name
696 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
697 have new members for a host name. The SSL data structure has an
698 additional member SSL_CTX *initial_ctx so that new sessions can be
699 stored in that context to allow for session resumption, even after the
700 SSL has been switched to a new SSL_CTX in reaction to a client's
701 server_name extension.
703 New functions (subject to change):
706 SSL_get_servername_type()
709 New CTRL codes and macros (subject to change):
711 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
712 - SSL_CTX_set_tlsext_servername_callback()
713 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
714 - SSL_CTX_set_tlsext_servername_arg()
715 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
717 openssl s_client has a new '-servername ...' option.
719 openssl s_server has new options '-servername_host ...', '-cert2 ...',
720 '-key2 ...', '-servername_fatal' (subject to change). This allows
721 testing the HostName extension for a specific single host name ('-cert'
722 and '-key' remain fallbacks for handshakes without HostName
723 negotiation). If the unrecogninzed_name alert has to be sent, this by
724 default is a warning; it becomes fatal with the '-servername_fatal'
727 [Peter Sylvester, Remy Allais, Christophe Renou]
729 *) Whirlpool hash implementation is added.
732 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
733 bn(64,32). Because of instruction set limitations it doesn't have
734 any negative impact on performance. This was done mostly in order
735 to make it possible to share assembler modules, such as bn_mul_mont
736 implementations, between 32- and 64-bit builds without hassle.
739 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
740 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
744 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
745 dedicated Montgomery multiplication procedure, is introduced.
746 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
747 "64-bit" performance on certain 32-bit targets.
750 *) New option SSL_OP_NO_COMP to disable use of compression selectively
751 in SSL structures. New SSL ctrl to set maximum send fragment size.
752 Save memory by seeting the I/O buffer sizes dynamically instead of
753 using the maximum available value.
756 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
757 in addition to the text details.
760 *) Very, very preliminary EXPERIMENTAL support for printing of general
761 ASN1 structures. This currently produces rather ugly output and doesn't
762 handle several customised structures at all.
765 *) Integrated support for PVK file format and some related formats such
766 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
767 these in the 'rsa' and 'dsa' utilities.
770 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
773 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
774 place for the (very old) "NETSCAPE" format certificates which are now
775 handled using new ASN1 code equivalents.
778 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
779 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
780 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
783 *) Modify CRL distribution points extension code to print out previously
784 unsupported fields. Enhance extension setting code to allow setting of
788 *) Add print and set support for Issuing Distribution Point CRL extension.
791 *) Change 'Configure' script to enable Camellia by default.
794 Changes between 0.9.8k and 0.9.8l [xx XXX xxxx]
796 *) In dtls1_process_out_of_seq_message() the check if the current message
797 is already buffered was missing. For every new message was memory
798 allocated, allowing an attacker to perform an denial of service attack
799 with sending out of seq handshake messages until there is no memory
800 left. Additionally every future messege was buffered, even if the
801 sequence number made no sense and would be part of another handshake.
802 So only messages with sequence numbers less than 10 in advance will be
804 [Robin Seggelmann, discovered by Daniel Mentz]
806 *) Records are buffered if they arrive with a future epoch to be
807 processed after finishing the corresponding handshake. There is
808 currently no limitation to this buffer allowing an attacker to perform
809 a DOS attack with sending records with future epochs until there is no
810 memory left. This patch adds the pqueue_size() function to detemine
811 the size of a buffer and limits the record buffer to 100 entries.
812 [Robin Seggelmann, discovered by Daniel Mentz]
814 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
815 parent structure is freed.
818 *) Handle non-blocking I/O properly in SSL_shutdown() call.
819 [Darryl Miles <darryl-mailinglists@netbauds.net>]
822 [Ilya O. <vrghost@gmail.com>]
824 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
826 *) Don't set val to NULL when freeing up structures, it is freed up by
827 underlying code. If sizeof(void *) > sizeof(long) this can result in
828 zeroing past the valid field. (CVE-2009-0789)
829 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
831 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
832 checked correctly. This would allow some invalid signed attributes to
833 appear to verify correctly. (CVE-2009-0591)
834 [Ivan Nestlerode <inestlerode@us.ibm.com>]
836 *) Reject UniversalString and BMPString types with invalid lengths. This
837 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
838 a legal length. (CVE-2009-0590)
841 *) Set S/MIME signing as the default purpose rather than setting it
842 unconditionally. This allows applications to override it at the store
846 *) Permit restricted recursion of ASN1 strings. This is needed in practice
847 to handle some structures.
850 *) Improve efficiency of mem_gets: don't search whole buffer each time
852 [Jeremy Shapiro <jnshapir@us.ibm.com>]
854 *) New -hex option for openssl rand.
857 *) Print out UTF8String and NumericString when parsing ASN1.
860 *) Support NumericString type for name components.
863 *) Allow CC in the environment to override the automatically chosen
864 compiler. Note that nothing is done to ensure flags work with the
868 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
870 *) Properly check EVP_VerifyFinal() and similar return values
872 [Ben Laurie, Bodo Moeller, Google Security Team]
874 *) Enable TLS extensions by default.
877 *) Allow the CHIL engine to be loaded, whether the application is
878 multithreaded or not. (This does not release the developer from the
879 obligation to set up the dynamic locking callbacks.)
880 [Sander Temme <sander@temme.net>]
882 *) Use correct exit code if there is an error in dgst command.
883 [Steve Henson; problem pointed out by Roland Dirlewanger]
885 *) Tweak Configure so that you need to say "experimental-jpake" to enable
886 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
889 *) Add experimental JPAKE support, including demo authentication in
890 s_client and s_server.
893 *) Set the comparison function in v3_addr_canonize().
894 [Rob Austein <sra@hactrn.net>]
896 *) Add support for XMPP STARTTLS in s_client.
897 [Philip Paeps <philip@freebsd.org>]
899 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
900 to ensure that even with this option, only ciphersuites in the
901 server's preference list will be accepted. (Note that the option
902 applies only when resuming a session, so the earlier behavior was
903 just about the algorithm choice for symmetric cryptography.)
906 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
908 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
909 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
912 *) The fix in 0.9.8c that supposedly got rid of unsafe
913 double-checked locking was incomplete for RSA blinding,
914 addressing just one layer of what turns out to have been
915 doubly unsafe triple-checked locking.
917 So now fix this for real by retiring the MONT_HELPER macro
918 in crypto/rsa/rsa_eay.c.
920 [Bodo Moeller; problem pointed out by Marius Schilder]
922 *) Various precautionary measures:
924 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
926 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
927 (NB: This would require knowledge of the secret session ticket key
928 to exploit, in which case you'd be SOL either way.)
930 - Change bn_nist.c so that it will properly handle input BIGNUMs
931 outside the expected range.
933 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
936 [Neel Mehta, Bodo Moeller]
938 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
939 the load fails. Useful for distros.
940 [Ben Laurie and the FreeBSD team]
942 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
945 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
948 *) Expand ENGINE to support engine supplied SSL client certificate functions.
950 This work was sponsored by Logica.
953 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
954 keystores. Support for SSL/TLS client authentication too.
955 Not compiled unless enable-capieng specified to Configure.
957 This work was sponsored by Logica.
960 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
961 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
962 attribute creation routines such as certifcate requests and PKCS#12
966 Changes between 0.9.8g and 0.9.8h [28 May 2008]
968 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
969 handshake which could lead to a cilent crash as found using the
970 Codenomicon TLS test suite (CVE-2008-1672)
971 [Steve Henson, Mark Cox]
973 *) Fix double free in TLS server name extensions which could lead to
974 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
977 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
979 Clear the error queue to ensure that error entries left from
980 older function calls do not interfere with the correct operation.
981 [Lutz Jaenicke, Erik de Castro Lopo]
983 *) Remove root CA certificates of commercial CAs:
985 The OpenSSL project does not recommend any specific CA and does not
986 have any policy with respect to including or excluding any CA.
987 Therefore it does not make any sense to ship an arbitrary selection
988 of root CA certificates with the OpenSSL software.
991 *) RSA OAEP patches to fix two separate invalid memory reads.
992 The first one involves inputs when 'lzero' is greater than
993 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
994 before the beginning of from). The second one involves inputs where
995 the 'db' section contains nothing but zeroes (there is a one-byte
996 invalid read after the end of 'db').
997 [Ivan Nestlerode <inestlerode@us.ibm.com>]
999 *) Partial backport from 0.9.9-dev:
1001 Introduce bn_mul_mont (dedicated Montgomery multiplication
1002 procedure) as a candidate for BIGNUM assembler implementation.
1003 While 0.9.9-dev uses assembler for various architectures, only
1004 x86_64 is available by default here in the 0.9.8 branch, and
1005 32-bit x86 is available through a compile-time setting.
1007 To try the 32-bit x86 assembler implementation, use Configure
1008 option "enable-montasm" (which exists only for this backport).
1010 As "enable-montasm" for 32-bit x86 disclaims code stability
1011 anyway, in this constellation we activate additional code
1012 backported from 0.9.9-dev for further performance improvements,
1013 namely BN_from_montgomery_word. (To enable this otherwise,
1014 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1016 [Andy Polyakov (backport partially by Bodo Moeller)]
1018 *) Add TLS session ticket callback. This allows an application to set
1019 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1020 values. This is useful for key rollover for example where several key
1021 sets may exist with different names.
1024 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1025 This was broken until now in 0.9.8 releases, such that the only way
1026 a registered ENGINE could be used (assuming it initialises
1027 successfully on the host) was to explicitly set it as the default
1028 for the relevant algorithms. This is in contradiction with 0.9.7
1029 behaviour and the documentation. With this fix, when an ENGINE is
1030 registered into a given algorithm's table of implementations, the
1031 'uptodate' flag is reset so that auto-discovery will be used next
1032 time a new context for that algorithm attempts to select an
1034 [Ian Lister (tweaked by Geoff Thorpe)]
1036 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1037 implemention in the following ways:
1039 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1042 Lack of BER streaming support means one pass streaming processing is
1043 only supported if data is detached: setting the streaming flag is
1044 ignored for embedded content.
1046 CMS support is disabled by default and must be explicitly enabled
1047 with the enable-cms configuration option.
1050 *) Update the GMP engine glue to do direct copies between BIGNUM and
1051 mpz_t when openssl and GMP use the same limb size. Otherwise the
1052 existing "conversion via a text string export" trick is still used.
1053 [Paul Sheer <paulsheer@gmail.com>]
1055 *) Zlib compression BIO. This is a filter BIO which compressed and
1056 uncompresses any data passed through it.
1059 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1060 RFC3394 compatible AES key wrapping.
1063 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1064 sets string data without copying. X509_ALGOR_set0() and
1065 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1066 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1067 from an X509_ATTRIBUTE structure optionally checking it occurs only
1068 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1072 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1073 to get the expected BN_FLG_CONSTTIME behavior.
1074 [Bodo Moeller (Google)]
1078 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1079 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1080 - added some more tests to do_tests.pl
1081 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1082 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1083 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1084 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1085 - various changes to netware.pl to enable gcc-cross builds on Win32
1087 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1088 - various changes to fix missing prototype warnings
1089 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1090 - added AES, WHIRLPOOL and CPUID assembler code to build files
1091 - added missing AES assembler make rules to mk1mf.pl
1092 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1093 [Guenter Knauf <eflash@gmx.net>]
1095 *) Implement certificate status request TLS extension defined in RFC3546.
1096 A client can set the appropriate parameters and receive the encoded
1097 OCSP response via a callback. A server can query the supplied parameters
1098 and set the encoded OCSP response in the callback. Add simplified examples
1099 to s_client and s_server.
1102 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1104 *) Fix various bugs:
1105 + Binary incompatibility of ssl_ctx_st structure
1106 + DTLS interoperation with non-compliant servers
1107 + Don't call get_session_cb() without proposed session
1108 + Fix ia64 assembler code
1109 [Andy Polyakov, Steve Henson]
1111 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1113 *) DTLS Handshake overhaul. There were longstanding issues with
1114 OpenSSL DTLS implementation, which were making it impossible for
1115 RFC 4347 compliant client to communicate with OpenSSL server.
1116 Unfortunately just fixing these incompatibilities would "cut off"
1117 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1118 server keeps tolerating non RFC compliant syntax. The opposite is
1119 not true, 0.9.8f client can not communicate with earlier server.
1120 This update even addresses CVE-2007-4995.
1123 *) Changes to avoid need for function casts in OpenSSL: some compilers
1124 (gcc 4.2 and later) reject their use.
1125 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1128 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1129 RFC4507bis. The encrypted ticket format is an encrypted encoded
1130 SSL_SESSION structure, that way new session features are automatically
1133 If a client application caches session in an SSL_SESSION structure
1134 support is transparent because tickets are now stored in the encoded
1137 The SSL_CTX structure automatically generates keys for ticket
1138 protection in servers so again support should be possible
1139 with no application modification.
1141 If a client or server wishes to disable RFC4507 support then the option
1142 SSL_OP_NO_TICKET can be set.
1144 Add a TLS extension debugging callback to allow the contents of any client
1145 or server extensions to be examined.
1147 This work was sponsored by Google.
1150 *) Add initial support for TLS extensions, specifically for the server_name
1151 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1152 have new members for a host name. The SSL data structure has an
1153 additional member SSL_CTX *initial_ctx so that new sessions can be
1154 stored in that context to allow for session resumption, even after the
1155 SSL has been switched to a new SSL_CTX in reaction to a client's
1156 server_name extension.
1158 New functions (subject to change):
1160 SSL_get_servername()
1161 SSL_get_servername_type()
1164 New CTRL codes and macros (subject to change):
1166 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1167 - SSL_CTX_set_tlsext_servername_callback()
1168 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1169 - SSL_CTX_set_tlsext_servername_arg()
1170 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1172 openssl s_client has a new '-servername ...' option.
1174 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1175 '-key2 ...', '-servername_fatal' (subject to change). This allows
1176 testing the HostName extension for a specific single host name ('-cert'
1177 and '-key' remain fallbacks for handshakes without HostName
1178 negotiation). If the unrecogninzed_name alert has to be sent, this by
1179 default is a warning; it becomes fatal with the '-servername_fatal'
1182 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1184 *) Add AES and SSE2 assembly language support to VC++ build.
1187 *) Mitigate attack on final subtraction in Montgomery reduction.
1190 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1191 (which previously caused an internal error).
1194 *) Squeeze another 10% out of IGE mode when in != out.
1197 *) AES IGE mode speedup.
1198 [Dean Gaudet (Google)]
1200 *) Add the Korean symmetric 128-bit cipher SEED (see
1201 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1202 add SEED ciphersuites from RFC 4162:
1204 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1205 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1206 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1207 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1209 To minimize changes between patchlevels in the OpenSSL 0.9.8
1210 series, SEED remains excluded from compilation unless OpenSSL
1211 is configured with 'enable-seed'.
1212 [KISA, Bodo Moeller]
1214 *) Mitigate branch prediction attacks, which can be practical if a
1215 single processor is shared, allowing a spy process to extract
1216 information. For detailed background information, see
1217 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1218 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1219 and Necessary Software Countermeasures"). The core of the change
1220 are new versions BN_div_no_branch() and
1221 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1222 respectively, which are slower, but avoid the security-relevant
1223 conditional branches. These are automatically called by BN_div()
1224 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1225 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1226 remove a conditional branch.
1228 BN_FLG_CONSTTIME is the new name for the previous
1229 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1230 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1231 in the exponent causes BN_mod_exp_mont() to use the alternative
1232 implementation in BN_mod_exp_mont_consttime().) The old name
1233 remains as a deprecated alias.
1235 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1236 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1237 constant-time implementations for more than just exponentiation.
1238 Here too the old name is kept as a deprecated alias.
1240 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1241 the BN_BLINDING structure gets an independent copy of the
1242 modulus. This means that the previous "BIGNUM *m" argument to
1243 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1244 essentially becomes "const BIGNUM *m", although we can't actually
1245 change this in the header file before 0.9.9. It allows
1246 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1247 enable BN_FLG_CONSTTIME.
1249 [Matthew D Wood (Intel Corp)]
1251 *) In the SSL/TLS server implementation, be strict about session ID
1252 context matching (which matters if an application uses a single
1253 external cache for different purposes). Previously,
1254 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1255 set. This did ensure strict client verification, but meant that,
1256 with applications using a single external cache for quite
1257 different requirements, clients could circumvent ciphersuite
1258 restrictions for a given session ID context by starting a session
1259 in a different context.
1262 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1263 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1264 authentication-only ciphersuites.
1267 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1268 not complete and could lead to a possible single byte overflow
1269 (CVE-2007-5135) [Ben Laurie]
1271 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1273 *) Since AES128 and AES256 (and similarly Camellia128 and
1274 Camellia256) share a single mask bit in the logic of
1275 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1276 kludge to work properly if AES128 is available and AES256 isn't
1277 (or if Camellia128 is available and Camellia256 isn't).
1280 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1281 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1282 When a point or a seed is encoded in a BIT STRING, we need to
1283 prevent the removal of trailing zero bits to get the proper DER
1284 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1285 of a NamedBitList, for which trailing 0 bits need to be removed.)
1288 *) Have SSL/TLS server implementation tolerate "mismatched" record
1289 protocol version while receiving ClientHello even if the
1290 ClientHello is fragmented. (The server can't insist on the
1291 particular protocol version it has chosen before the ServerHello
1292 message has informed the client about his choice.)
1295 *) Add RFC 3779 support.
1296 [Rob Austein for ARIN, Ben Laurie]
1298 *) Load error codes if they are not already present instead of using a
1299 static variable. This allows them to be cleanly unloaded and reloaded.
1300 Improve header file function name parsing.
1303 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1304 or CAPABILITY handshake as required by RFCs.
1307 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1309 *) Introduce limits to prevent malicious keys being able to
1310 cause a denial of service. (CVE-2006-2940)
1311 [Steve Henson, Bodo Moeller]
1313 *) Fix ASN.1 parsing of certain invalid structures that can result
1314 in a denial of service. (CVE-2006-2937) [Steve Henson]
1316 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1317 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1319 *) Fix SSL client code which could crash if connecting to a
1320 malicious SSLv2 server. (CVE-2006-4343)
1321 [Tavis Ormandy and Will Drewry, Google Security Team]
1323 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1324 match only those. Before that, "AES256-SHA" would be interpreted
1325 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1326 the same strength classification in 0.9.7h) as we currently only
1327 have a single AES bit in the ciphersuite description bitmap.
1328 That change, however, also applied to ciphersuite strings such as
1329 "RC4-MD5" that intentionally matched multiple ciphersuites --
1330 namely, SSL 2.0 ciphersuites in addition to the more common ones
1331 from SSL 3.0/TLS 1.0.
1333 So we change the selection algorithm again: Naming an explicit
1334 ciphersuite selects this one ciphersuite, and any other similar
1335 ciphersuite (same bitmap) from *other* protocol versions.
1336 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1337 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1339 Since SSL 2.0 does not have any ciphersuites for which the
1340 128/256 bit distinction would be relevant, this works for now.
1341 The proper fix will be to use different bits for AES128 and
1342 AES256, which would have avoided the problems from the beginning;
1343 however, bits are scarce, so we can only do this in a new release
1344 (not just a patchlevel) when we can change the SSL_CIPHER
1345 definition to split the single 'unsigned long mask' bitmap into
1346 multiple values to extend the available space.
1350 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1352 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1353 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1355 *) Add AES IGE and biIGE modes.
1358 *) Change the Unix randomness entropy gathering to use poll() when
1359 possible instead of select(), since the latter has some
1360 undesirable limitations.
1361 [Darryl Miles via Richard Levitte and Bodo Moeller]
1363 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1364 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1365 cannot be implicitly activated as part of, e.g., the "AES" alias.
1366 However, please upgrade to OpenSSL 0.9.9[-dev] for
1367 non-experimental use of the ECC ciphersuites to get TLS extension
1368 support, which is required for curve and point format negotiation
1369 to avoid potential handshake problems.
1372 *) Disable rogue ciphersuites:
1374 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1375 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1376 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1378 The latter two were purportedly from
1379 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1382 Also deactivate the remaining ciphersuites from
1383 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1384 unofficial, and the ID has long expired.
1387 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1388 dual-core machines) and other potential thread-safety issues.
1391 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1392 versions), which is now available for royalty-free use
1393 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1394 Also, add Camellia TLS ciphersuites from RFC 4132.
1396 To minimize changes between patchlevels in the OpenSSL 0.9.8
1397 series, Camellia remains excluded from compilation unless OpenSSL
1398 is configured with 'enable-camellia'.
1401 *) Disable the padding bug check when compression is in use. The padding
1402 bug check assumes the first packet is of even length, this is not
1403 necessarily true if compresssion is enabled and can result in false
1404 positives causing handshake failure. The actual bug test is ancient
1405 code so it is hoped that implementations will either have fixed it by
1406 now or any which still have the bug do not support compression.
1409 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1411 *) When applying a cipher rule check to see if string match is an explicit
1412 cipher suite and only match that one cipher suite if it is.
1415 *) Link in manifests for VC++ if needed.
1416 [Austin Ziegler <halostatue@gmail.com>]
1418 *) Update support for ECC-based TLS ciphersuites according to
1419 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1420 TLS extensions, which are supported starting with the 0.9.9
1421 branch, not in the OpenSSL 0.9.8 branch).
1424 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1425 opaque EVP_CIPHER_CTX handling.
1428 *) Fixes and enhancements to zlib compression code. We now only use
1429 "zlib1.dll" and use the default __cdecl calling convention on Win32
1430 to conform with the standards mentioned here:
1431 http://www.zlib.net/DLL_FAQ.txt
1432 Static zlib linking now works on Windows and the new --with-zlib-include
1433 --with-zlib-lib options to Configure can be used to supply the location
1434 of the headers and library. Gracefully handle case where zlib library
1438 *) Several fixes and enhancements to the OID generation code. The old code
1439 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1440 handle numbers larger than ULONG_MAX, truncated printing and had a
1441 non standard OBJ_obj2txt() behaviour.
1444 *) Add support for building of engines under engine/ as shared libraries
1445 under VC++ build system.
1448 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1449 Hopefully, we will not see any false combination of paths any more.
1452 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1454 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1455 (part of SSL_OP_ALL). This option used to disable the
1456 countermeasure against man-in-the-middle protocol-version
1457 rollback in the SSL 2.0 server implementation, which is a bad
1458 idea. (CVE-2005-2969)
1460 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1461 for Information Security, National Institute of Advanced Industrial
1462 Science and Technology [AIST], Japan)]
1464 *) Add two function to clear and return the verify parameter flags.
1467 *) Keep cipherlists sorted in the source instead of sorting them at
1468 runtime, thus removing the need for a lock.
1471 *) Avoid some small subgroup attacks in Diffie-Hellman.
1472 [Nick Mathewson and Ben Laurie]
1474 *) Add functions for well-known primes.
1477 *) Extended Windows CE support.
1478 [Satoshi Nakamura and Andy Polyakov]
1480 *) Initialize SSL_METHOD structures at compile time instead of during
1481 runtime, thus removing the need for a lock.
1484 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1485 attempting to decrypt each encrypted key in turn. Add support to
1489 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1491 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1494 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1497 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1498 key into the same file any more.
1501 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1504 *) Add -utf8 command line and config file option to 'ca'.
1505 [Stefan <stf@udoma.org]
1507 *) Removed the macro des_crypt(), as it seems to conflict with some
1508 libraries. Use DES_crypt().
1511 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1512 involves renaming the source and generated shared-libs for
1513 both. The engines will accept the corrected or legacy ids
1514 ('ncipher' and '4758_cca' respectively) when binding. NB,
1515 this only applies when building 'shared'.
1516 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1518 *) Add attribute functions to EVP_PKEY structure. Modify
1519 PKCS12_create() to recognize a CSP name attribute and
1520 use it. Make -CSP option work again in pkcs12 utility.
1523 *) Add new functionality to the bn blinding code:
1524 - automatic re-creation of the BN_BLINDING parameters after
1525 a fixed number of uses (currently 32)
1526 - add new function for parameter creation
1527 - introduce flags to control the update behaviour of the
1528 BN_BLINDING parameters
1529 - hide BN_BLINDING structure
1530 Add a second BN_BLINDING slot to the RSA structure to improve
1531 performance when a single RSA object is shared among several
1535 *) Add support for DTLS.
1536 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1538 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1539 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1542 *) Remove buggy and incompletet DH cert support from
1543 ssl/ssl_rsa.c and ssl/s3_both.c
1546 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1547 the apps/openssl applications.
1550 *) Compile clean with "-Wall -Wmissing-prototypes
1551 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1552 DEBUG_SAFESTACK must also be set.
1555 *) Change ./Configure so that certain algorithms can be disabled by default.
1556 The new counterpiece to "no-xxx" is "enable-xxx".
1558 The patented RC5 and MDC2 algorithms will now be disabled unless
1559 "enable-rc5" and "enable-mdc2", respectively, are specified.
1561 (IDEA remains enabled despite being patented. This is because IDEA
1562 is frequently required for interoperability, and there is no license
1563 fee for non-commercial use. As before, "no-idea" can be used to
1564 avoid this algorithm.)
1568 *) Add processing of proxy certificates (see RFC 3820). This work was
1569 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1570 EGEE (Enabling Grids for E-science in Europe).
1573 *) RC4 performance overhaul on modern architectures/implementations, such
1574 as Intel P4, IA-64 and AMD64.
1577 *) New utility extract-section.pl. This can be used specify an alternative
1578 section number in a pod file instead of having to treat each file as
1579 a separate case in Makefile. This can be done by adding two lines to the
1582 =for comment openssl_section:XXX
1584 The blank line is mandatory.
1588 *) New arguments -certform, -keyform and -pass for s_client and s_server
1589 to allow alternative format key and certificate files and passphrase
1593 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1594 update associated structures and add various utility functions.
1596 Add new policy related verify parameters, include policy checking in
1597 standard verify code. Enhance 'smime' application with extra parameters
1598 to support policy checking and print out.
1601 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1602 Nehemiah processors. These extensions support AES encryption in hardware
1603 as well as RNG (though RNG support is currently disabled).
1604 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1606 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1609 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1610 [Andy Polyakov and a number of other people]
1612 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1613 implementation contributed by IBM.
1614 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1616 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1617 exponent rather than 'unsigned long'. There is a corresponding change to
1618 the new 'rsa_keygen' element of the RSA_METHOD structure.
1619 [Jelte Jansen, Geoff Thorpe]
1621 *) Functionality for creating the initial serial number file is now
1622 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1624 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1625 number file to 1, which is bound to cause problems. To avoid
1626 the problems while respecting compatibility between different 0.9.7
1627 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1628 CA.pl for serial number initialization. With the new release 0.9.8,
1629 we can fix the problem directly in the 'ca' utility.)
1632 *) Reduced header interdepencies by declaring more opaque objects in
1633 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1634 give fewer recursive includes, which could break lazy source code - so
1635 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1636 developers should define this symbol when building and using openssl to
1637 ensure they track the recommended behaviour, interfaces, [etc], but
1638 backwards-compatible behaviour prevails when this isn't defined.
1641 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1644 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1645 This will generate a random key of the appropriate length based on the
1646 cipher context. The EVP_CIPHER can provide its own random key generation
1647 routine to support keys of a specific form. This is used in the des and
1648 3des routines to generate a key of the correct parity. Update S/MIME
1649 code to use new functions and hence generate correct parity DES keys.
1650 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1651 valid (weak or incorrect parity).
1654 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1655 as looking them up. This is useful when the verified structure may contain
1656 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1657 present unless the new PKCS7_NO_CRL flag is asserted.
1660 *) Extend ASN1 oid configuration module. It now additionally accepts the
1663 shortName = some long name, 1.2.3.4
1666 *) Reimplemented the BN_CTX implementation. There is now no more static
1667 limitation on the number of variables it can handle nor the depth of the
1668 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1669 information can now expand as required, and rather than having a single
1670 static array of bignums, BN_CTX now uses a linked-list of such arrays
1671 allowing it to expand on demand whilst maintaining the usefulness of
1672 BN_CTX's "bundling".
1675 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1676 to allow all RSA operations to function using a single BN_CTX.
1679 *) Preliminary support for certificate policy evaluation and checking. This
1680 is initially intended to pass the tests outlined in "Conformance Testing
1681 of Relying Party Client Certificate Path Processing Logic" v1.07.
1684 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1685 remained unused and not that useful. A variety of other little bignum
1686 tweaks and fixes have also been made continuing on from the audit (see
1690 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1691 associated ASN1, EVP and SSL functions and old ASN1 macros.
1694 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1695 and this should never fail. So the return value from the use of
1696 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1697 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1700 *) BN_CTX_get() should return zero-valued bignums, providing the same
1701 initialised value as BN_new().
1702 [Geoff Thorpe, suggested by Ulf Möller]
1704 *) Support for inhibitAnyPolicy certificate extension.
1707 *) An audit of the BIGNUM code is underway, for which debugging code is
1708 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1709 is considered valid when processing BIGNUMs, and causes execution to
1710 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1711 further steps are taken to deliberately pollute unused data in BIGNUM
1712 structures to try and expose faulty code further on. For now, openssl will
1713 (in its default mode of operation) continue to tolerate the inconsistent
1714 forms that it has tolerated in the past, but authors and packagers should
1715 consider trying openssl and their own applications when compiled with
1716 these debugging symbols defined. It will help highlight potential bugs in
1717 their own code, and will improve the test coverage for OpenSSL itself. At
1718 some point, these tighter rules will become openssl's default to improve
1719 maintainability, though the assert()s and other overheads will remain only
1720 in debugging configurations. See bn.h for more details.
1721 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1723 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1724 that can only be obtained through BN_CTX_new() (which implicitly
1725 initialises it). The presence of this function only made it possible
1726 to overwrite an existing structure (and cause memory leaks).
1729 *) Because of the callback-based approach for implementing LHASH as a
1730 template type, lh_insert() adds opaque objects to hash-tables and
1731 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1732 to clean up those corresponding objects before destroying the hash table
1733 (and losing the object pointers). So some over-zealous constifications in
1734 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1735 objects as "const" and the lh_doall[_arg] callback wrappers are not
1736 prototyped to have "const" restrictions on the object pointers they are
1737 given (and so aren't required to cast them away any more).
1740 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1741 (speed) prefers to use its own implementation. The two implementations
1742 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1743 its object type properly exposed (MS_TM) instead of casting to/from "char
1744 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1745 aren't necessarily the greatest nomenclatures - but this is what was used
1746 internally to the implementation so I've used that for now.
1749 *) Ensure that deprecated functions do not get compiled when
1750 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1751 the self-tests were still using deprecated key-generation functions so
1752 these have been updated also.
1755 *) Reorganise PKCS#7 code to separate the digest location functionality
1756 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1757 New function PKCS7_set_digest() to set the digest type for PKCS#7
1758 digestedData type. Add additional code to correctly generate the
1759 digestedData type and add support for this type in PKCS7 initialization
1763 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1764 structure of type "other".
1767 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1768 sure the loop does correctly stop and breaking ("division by zero")
1769 modulus operations are not performed. The (pre-generated) prime
1770 table crypto/bn/bn_prime.h was already correct, but it could not be
1771 re-generated on some platforms because of the "division by zero"
1772 situation in the script.
1773 [Ralf S. Engelschall]
1775 *) Update support for ECC-based TLS ciphersuites according to
1776 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1777 SHA-1 now is only used for "small" curves (where the
1778 representation of a field element takes up to 24 bytes); for
1779 larger curves, the field element resulting from ECDH is directly
1780 used as premaster secret.
1781 [Douglas Stebila (Sun Microsystems Laboratories)]
1783 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1784 curve secp160r1 to the tests.
1785 [Douglas Stebila (Sun Microsystems Laboratories)]
1787 *) Add the possibility to load symbols globally with DSO.
1788 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1790 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1791 control of the error stack.
1794 *) Add support for STORE in ENGINE.
1797 *) Add the STORE type. The intention is to provide a common interface
1798 to certificate and key stores, be they simple file-based stores, or
1799 HSM-type store, or LDAP stores, or...
1800 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1803 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1804 pass a list of arguments to any function as well as provide a way
1805 for a function to pass data back to the caller.
1808 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1809 works like BUF_strdup() but can be used to duplicate a portion of
1810 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1814 *) Add the function sk_find_ex() which works like sk_find(), but will
1815 return an index to an element even if an exact match couldn't be
1816 found. The index is guaranteed to point at the element where the
1817 searched-for key would be inserted to preserve sorting order.
1820 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1821 takes an extra flags argument for optional functionality. Currently,
1822 the following flags are defined:
1824 OBJ_BSEARCH_VALUE_ON_NOMATCH
1825 This one gets OBJ_bsearch_ex() to return a pointer to the first
1826 element where the comparing function returns a negative or zero
1829 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1830 This one gets OBJ_bsearch_ex() to return a pointer to the first
1831 element where the comparing function returns zero. This is useful
1832 if there are more than one element where the comparing function
1836 *) Make it possible to create self-signed certificates with 'openssl ca'
1837 in such a way that the self-signed certificate becomes part of the
1838 CA database and uses the same mechanisms for serial number generation
1839 as all other certificate signing. The new flag '-selfsign' enables
1840 this functionality. Adapt CA.sh and CA.pl.in.
1843 *) Add functionality to check the public key of a certificate request
1844 against a given private. This is useful to check that a certificate
1845 request can be signed by that key (self-signing).
1848 *) Make it possible to have multiple active certificates with the same
1849 subject in the CA index file. This is done only if the keyword
1850 'unique_subject' is set to 'no' in the main CA section (default
1851 if 'CA_default') of the configuration file. The value is saved
1852 with the database itself in a separate index attribute file,
1853 named like the index file with '.attr' appended to the name.
1856 *) Generate muti valued AVAs using '+' notation in config files for
1860 *) Support for nameConstraints certificate extension.
1863 *) Support for policyConstraints certificate extension.
1866 *) Support for policyMappings certificate extension.
1869 *) Make sure the default DSA_METHOD implementation only uses its
1870 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1871 and change its own handlers to be NULL so as to remove unnecessary
1872 indirection. This lets alternative implementations fallback to the
1873 default implementation more easily.
1876 *) Support for directoryName in GeneralName related extensions
1880 *) Make it possible to link applications using Makefile.shared.
1881 Make that possible even when linking against static libraries!
1884 *) Support for single pass processing for S/MIME signing. This now
1885 means that S/MIME signing can be done from a pipe, in addition
1886 cleartext signing (multipart/signed type) is effectively streaming
1887 and the signed data does not need to be all held in memory.
1889 This is done with a new flag PKCS7_STREAM. When this flag is set
1890 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1891 is done after the data is output (and digests calculated) in
1892 SMIME_write_PKCS7().
1895 *) Add full support for -rpath/-R, both in shared libraries and
1896 applications, at least on the platforms where it's known how
1900 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1901 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1902 will now compute a table of multiples of the generator that
1903 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1904 faster (notably in the case of a single point multiplication,
1905 scalar * generator).
1906 [Nils Larsch, Bodo Moeller]
1908 *) IPv6 support for certificate extensions. The various extensions
1909 which use the IP:a.b.c.d can now take IPv6 addresses using the
1910 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1914 *) Added an ENGINE that implements RSA by performing private key
1915 exponentiations with the GMP library. The conversions to and from
1916 GMP's mpz_t format aren't optimised nor are any montgomery forms
1917 cached, and on x86 it appears OpenSSL's own performance has caught up.
1918 However there are likely to be other architectures where GMP could
1919 provide a boost. This ENGINE is not built in by default, but it can be
1920 specified at Configure time and should be accompanied by the necessary
1921 linker additions, eg;
1922 ./config -DOPENSSL_USE_GMP -lgmp
1925 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1926 testing availability of engines with "-t" - the old behaviour is
1927 produced by increasing the feature's verbosity with "-tt".
1930 *) ECDSA routines: under certain error conditions uninitialized BN objects
1931 could be freed. Solution: make sure initialization is performed early
1932 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1936 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1937 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1938 software implementations. For DSA and DH, parameter generation can
1939 also be overriden by providing the appropriate method callbacks.
1942 *) Change the "progress" mechanism used in key-generation and
1943 primality testing to functions that take a new BN_GENCB pointer in
1944 place of callback/argument pairs. The new API functions have "_ex"
1945 postfixes and the older functions are reimplemented as wrappers for
1946 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1947 declarations of the old functions to help (graceful) attempts to
1948 migrate to the new functions. Also, the new key-generation API
1949 functions operate on a caller-supplied key-structure and return
1950 success/failure rather than returning a key or NULL - this is to
1951 help make "keygen" another member function of RSA_METHOD etc.
1953 Example for using the new callback interface:
1955 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1959 BN_GENCB_set(&my_cb, my_callback, my_arg);
1961 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1962 /* For the meaning of a, b in calls to my_callback(), see the
1963 * documentation of the function that calls the callback.
1964 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1965 * my_callback should return 1 if it wants BN_is_prime_ex()
1966 * to continue, or 0 to stop.
1971 *) Change the ZLIB compression method to be stateful, and make it
1972 available to TLS with the number defined in
1973 draft-ietf-tls-compression-04.txt.
1976 *) Add the ASN.1 structures and functions for CertificatePair, which
1977 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1979 CertificatePair ::= SEQUENCE {
1980 forward [0] Certificate OPTIONAL,
1981 reverse [1] Certificate OPTIONAL,
1982 -- at least one of the pair shall be present -- }
1984 Also implement the PEM functions to read and write certificate
1985 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1987 This needed to be defined, mostly for the sake of the LDAP
1988 attribute crossCertificatePair, but may prove useful elsewhere as
1992 *) Make it possible to inhibit symlinking of shared libraries in
1993 Makefile.shared, for Cygwin's sake.
1996 *) Extend the BIGNUM API by creating a function
1997 void BN_set_negative(BIGNUM *a, int neg);
1998 and a macro that behave like
1999 int BN_is_negative(const BIGNUM *a);
2001 to avoid the need to access 'a->neg' directly in applications.
2004 *) Implement fast modular reduction for pseudo-Mersenne primes
2005 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2006 EC_GROUP_new_curve_GFp() will now automatically use this
2008 [Nils Larsch <nla@trustcenter.de>]
2010 *) Add new lock type (CRYPTO_LOCK_BN).
2013 *) Change the ENGINE framework to automatically load engines
2014 dynamically from specific directories unless they could be
2015 found to already be built in or loaded. Move all the
2016 current engines except for the cryptodev one to a new
2018 The engines in engines/ are built as shared libraries if
2019 the "shared" options was given to ./Configure or ./config.
2020 Otherwise, they are inserted in libcrypto.a.
2021 /usr/local/ssl/engines is the default directory for dynamic
2022 engines, but that can be overriden at configure time through
2023 the usual use of --prefix and/or --openssldir, and at run
2024 time with the environment variable OPENSSL_ENGINES.
2025 [Geoff Thorpe and Richard Levitte]
2027 *) Add Makefile.shared, a helper makefile to build shared
2028 libraries. Addapt Makefile.org.
2031 *) Add version info to Win32 DLLs.
2032 [Peter 'Luna' Runestig" <peter@runestig.com>]
2034 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2035 can be added using this API to created arbitrary PKCS#12
2036 files while avoiding the low level API.
2038 New options to PKCS12_create(), key or cert can be NULL and
2039 will then be omitted from the output file. The encryption
2040 algorithm NIDs can be set to -1 for no encryption, the mac
2041 iteration count can be set to 0 to omit the mac.
2043 Enhance pkcs12 utility by making the -nokeys and -nocerts
2044 options work when creating a PKCS#12 file. New option -nomac
2045 to omit the mac, NONE can be set for an encryption algorithm.
2046 New code is modified to use the enhanced PKCS12_create()
2047 instead of the low level API.
2050 *) Extend ASN1 encoder to support indefinite length constructed
2051 encoding. This can output sequences tags and octet strings in
2052 this form. Modify pk7_asn1.c to support indefinite length
2053 encoding. This is experimental and needs additional code to
2054 be useful, such as an ASN1 bio and some enhanced streaming
2057 Extend template encode functionality so that tagging is passed
2058 down to the template encoder.
2061 *) Let 'openssl req' fail if an argument to '-newkey' is not
2062 recognized instead of using RSA as a default.
2065 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2066 As these are not official, they are not included in "ALL";
2067 the "ECCdraft" ciphersuite group alias can be used to select them.
2068 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2070 *) Add ECDH engine support.
2071 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2073 *) Add ECDH in new directory crypto/ecdh/.
2074 [Douglas Stebila (Sun Microsystems Laboratories)]
2076 *) Let BN_rand_range() abort with an error after 100 iterations
2077 without success (which indicates a broken PRNG).
2080 *) Change BN_mod_sqrt() so that it verifies that the input value
2081 is really the square of the return value. (Previously,
2082 BN_mod_sqrt would show GIGO behaviour.)
2085 *) Add named elliptic curves over binary fields from X9.62, SECG,
2086 and WAP/WTLS; add OIDs that were still missing.
2088 [Sheueling Chang Shantz and Douglas Stebila
2089 (Sun Microsystems Laboratories)]
2091 *) Extend the EC library for elliptic curves over binary fields
2092 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2095 EC_GF2m_simple_method
2099 EC_GROUP_new_curve_GF2m
2100 EC_GROUP_set_curve_GF2m
2101 EC_GROUP_get_curve_GF2m
2102 EC_POINT_set_affine_coordinates_GF2m
2103 EC_POINT_get_affine_coordinates_GF2m
2104 EC_POINT_set_compressed_coordinates_GF2m
2106 Point compression for binary fields is disabled by default for
2107 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2110 As binary polynomials are represented as BIGNUMs, various members
2111 of the EC_GROUP and EC_POINT data structures can be shared
2112 between the implementations for prime fields and binary fields;
2113 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2114 are essentially identical to their ..._GFp counterparts.
2115 (For simplicity, the '..._GFp' prefix has been dropped from
2116 various internal method names.)
2118 An internal 'field_div' method (similar to 'field_mul' and
2119 'field_sqr') has been added; this is used only for binary fields.
2121 [Sheueling Chang Shantz and Douglas Stebila
2122 (Sun Microsystems Laboratories)]
2124 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2125 through methods ('mul', 'precompute_mult').
2127 The generic implementations (now internally called 'ec_wNAF_mul'
2128 and 'ec_wNAF_precomputed_mult') remain the default if these
2129 methods are undefined.
2131 [Sheueling Chang Shantz and Douglas Stebila
2132 (Sun Microsystems Laboratories)]
2134 *) New function EC_GROUP_get_degree, which is defined through
2135 EC_METHOD. For curves over prime fields, this returns the bit
2136 length of the modulus.
2138 [Sheueling Chang Shantz and Douglas Stebila
2139 (Sun Microsystems Laboratories)]
2141 *) New functions EC_GROUP_dup, EC_POINT_dup.
2142 (These simply call ..._new and ..._copy).
2144 [Sheueling Chang Shantz and Douglas Stebila
2145 (Sun Microsystems Laboratories)]
2147 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2148 Polynomials are represented as BIGNUMs (where the sign bit is not
2149 used) in the following functions [macros]:
2152 BN_GF2m_sub [= BN_GF2m_add]
2153 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2154 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2155 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2157 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2158 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2159 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2160 BN_GF2m_cmp [= BN_ucmp]
2162 (Note that only the 'mod' functions are actually for fields GF(2^m).
2163 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2165 For some functions, an the irreducible polynomial defining a
2166 field can be given as an 'unsigned int[]' with strictly
2167 decreasing elements giving the indices of those bits that are set;
2168 i.e., p[] represents the polynomial
2169 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2171 p[0] > p[1] > ... > p[k] = 0.
2172 This applies to the following functions:
2177 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2178 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2180 BN_GF2m_mod_sqrt_arr
2181 BN_GF2m_mod_solve_quad_arr
2185 Conversion can be performed by the following functions:
2190 bntest.c has additional tests for binary polynomial arithmetic.
2192 Two implementations for BN_GF2m_mod_div() are available.
2193 The default algorithm simply uses BN_GF2m_mod_inv() and
2194 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2195 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2196 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2198 [Sheueling Chang Shantz and Douglas Stebila
2199 (Sun Microsystems Laboratories)]
2201 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2202 functionality is disabled at compile-time.
2203 [Douglas Stebila <douglas.stebila@sun.com>]
2205 *) Change default behaviour of 'openssl asn1parse' so that more
2206 information is visible when viewing, e.g., a certificate:
2208 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2209 mode the content of non-printable OCTET STRINGs is output in a
2210 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2211 avoid the appearance of a printable string.
2212 [Nils Larsch <nla@trustcenter.de>]
2214 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2216 EC_GROUP_set_asn1_flag()
2217 EC_GROUP_get_asn1_flag()
2218 EC_GROUP_set_point_conversion_form()
2219 EC_GROUP_get_point_conversion_form()
2220 These control ASN1 encoding details:
2221 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2222 has been set to OPENSSL_EC_NAMED_CURVE.
2223 - Points are encoded in uncompressed form by default; options for
2224 asn1_for are as for point2oct, namely
2225 POINT_CONVERSION_COMPRESSED
2226 POINT_CONVERSION_UNCOMPRESSED
2227 POINT_CONVERSION_HYBRID
2229 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2232 EC_GROUP_get0_seed()
2233 EC_GROUP_get_seed_len()
2234 This is used only for ASN1 purposes (so far).
2235 [Nils Larsch <nla@trustcenter.de>]
2237 *) Add 'field_type' member to EC_METHOD, which holds the NID
2238 of the appropriate field type OID. The new function
2239 EC_METHOD_get_field_type() returns this value.
2240 [Nils Larsch <nla@trustcenter.de>]
2245 EC_POINT_point2hex()
2246 EC_POINT_hex2point()
2247 providing useful interfaces to EC_POINT_point2oct() and
2248 EC_POINT_oct2point().
2249 [Nils Larsch <nla@trustcenter.de>]
2251 *) Change internals of the EC library so that the functions
2252 EC_GROUP_set_generator()
2253 EC_GROUP_get_generator()
2254 EC_GROUP_get_order()
2255 EC_GROUP_get_cofactor()
2256 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2257 to methods, which would lead to unnecessary code duplication when
2258 adding different types of curves.
2259 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2261 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2262 arithmetic, and such that modified wNAFs are generated
2263 (which avoid length expansion in many cases).
2266 *) Add a function EC_GROUP_check_discriminant() (defined via
2267 EC_METHOD) that verifies that the curve discriminant is non-zero.
2269 Add a function EC_GROUP_check() that makes some sanity tests
2270 on a EC_GROUP, its generator and order. This includes
2271 EC_GROUP_check_discriminant().
2272 [Nils Larsch <nla@trustcenter.de>]
2274 *) Add ECDSA in new directory crypto/ecdsa/.
2276 Add applications 'openssl ecparam' and 'openssl ecdsa'
2277 (these are based on 'openssl dsaparam' and 'openssl dsa').
2279 ECDSA support is also included in various other files across the
2280 library. Most notably,
2281 - 'openssl req' now has a '-newkey ecdsa:file' option;
2282 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2283 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2284 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2285 them suitable for ECDSA where domain parameters must be
2286 extracted before the specific public key;
2287 - ECDSA engine support has been added.
2288 [Nils Larsch <nla@trustcenter.de>]
2290 *) Include some named elliptic curves, and add OIDs from X9.62,
2291 SECG, and WAP/WTLS. Each curve can be obtained from the new
2293 EC_GROUP_new_by_curve_name(),
2294 and the list of available named curves can be obtained with
2295 EC_get_builtin_curves().
2296 Also add a 'curve_name' member to EC_GROUP objects, which can be
2298 EC_GROUP_set_curve_name()
2299 EC_GROUP_get_curve_name()
2300 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2302 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2303 was actually never needed) and in BN_mul(). The removal in BN_mul()
2304 required a small change in bn_mul_part_recursive() and the addition
2305 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2306 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2307 bn_sub_words() and bn_add_words() except they take arrays with
2311 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
2313 *) In the SSL/TLS server implementation, be strict about session ID
2314 context matching (which matters if an application uses a single
2315 external cache for different purposes). Previously,
2316 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2317 set. This did ensure strict client verification, but meant that,
2318 with applications using a single external cache for quite
2319 different requirements, clients could circumvent ciphersuite
2320 restrictions for a given session ID context by starting a session
2321 in a different context.
2324 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2326 *) Cleanse PEM buffers before freeing them since they may contain
2328 [Benjamin Bennett <ben@psc.edu>]
2330 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2331 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2332 authentication-only ciphersuites.
2335 *) Since AES128 and AES256 share a single mask bit in the logic of
2336 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2337 kludge to work properly if AES128 is available and AES256 isn't.
2340 *) Expand security boundary to match 1.1.1 module.
2343 *) Remove redundant features: hash file source, editing of test vectors
2344 modify fipsld to use external fips_premain.c signature.
2347 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2348 run algorithm test programs.
2351 *) Make algorithm test programs more tolerant of whitespace.
2354 *) Have SSL/TLS server implementation tolerate "mismatched" record
2355 protocol version while receiving ClientHello even if the
2356 ClientHello is fragmented. (The server can't insist on the
2357 particular protocol version it has chosen before the ServerHello
2358 message has informed the client about his choice.)
2361 *) Load error codes if they are not already present instead of using a
2362 static variable. This allows them to be cleanly unloaded and reloaded.
2365 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2367 *) Introduce limits to prevent malicious keys being able to
2368 cause a denial of service. (CVE-2006-2940)
2369 [Steve Henson, Bodo Moeller]
2371 *) Fix ASN.1 parsing of certain invalid structures that can result
2372 in a denial of service. (CVE-2006-2937) [Steve Henson]
2374 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2375 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2377 *) Fix SSL client code which could crash if connecting to a
2378 malicious SSLv2 server. (CVE-2006-4343)
2379 [Tavis Ormandy and Will Drewry, Google Security Team]
2381 *) Change ciphersuite string processing so that an explicit
2382 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2383 will no longer include "AES128-SHA"), and any other similar
2384 ciphersuite (same bitmap) from *other* protocol versions (so that
2385 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2386 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2387 changes from 0.9.8b and 0.9.8d.
2390 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2392 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2393 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2395 *) Change the Unix randomness entropy gathering to use poll() when
2396 possible instead of select(), since the latter has some
2397 undesirable limitations.
2398 [Darryl Miles via Richard Levitte and Bodo Moeller]
2400 *) Disable rogue ciphersuites:
2402 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2403 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2404 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2406 The latter two were purportedly from
2407 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2410 Also deactive the remaining ciphersuites from
2411 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2412 unofficial, and the ID has long expired.
2415 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2416 dual-core machines) and other potential thread-safety issues.
2419 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2421 *) Adapt fipsld and the build system to link against the validated FIPS
2422 module in FIPS mode.
2425 *) Fixes for VC++ 2005 build under Windows.
2428 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2429 from a Windows bash shell such as MSYS. It is autodetected from the
2430 "config" script when run from a VC++ environment. Modify standard VC++
2431 build to use fipscanister.o from the GNU make build.
2434 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2436 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2437 The value now differs depending on if you build for FIPS or not.
2438 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2439 safely run with a non-FIPSed libcrypto, as it may crash because of
2440 the difference induced by this change.
2443 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2445 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2446 (part of SSL_OP_ALL). This option used to disable the
2447 countermeasure against man-in-the-middle protocol-version
2448 rollback in the SSL 2.0 server implementation, which is a bad
2449 idea. (CVE-2005-2969)
2451 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2452 for Information Security, National Institute of Advanced Industrial
2453 Science and Technology [AIST], Japan)]
2455 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2456 mainly for FIPS compliance and not fully integrated at this stage.
2459 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2460 the exponentiation using a fixed-length exponent. (Otherwise,
2461 the information leaked through timing could expose the secret key
2462 after many signatures; cf. Bleichenbacher's attack on DSA with
2466 *) Make a new fixed-window mod_exp implementation the default for
2467 RSA, DSA, and DH private-key operations so that the sequence of
2468 squares and multiplies and the memory access pattern are
2469 independent of the particular secret key. This will mitigate
2470 cache-timing and potential related attacks.
2472 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2473 and this is automatically used by BN_mod_exp_mont() if the new flag
2474 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2475 will use this BN flag for private exponents unless the flag
2476 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2477 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2479 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2481 *) Change the client implementation for SSLv23_method() and
2482 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2483 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2484 (Previously, the SSL 2.0 backwards compatible Client Hello
2485 message format would be used even with SSL_OP_NO_SSLv2.)
2488 *) Add support for smime-type MIME parameter in S/MIME messages which some
2492 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2493 a threadsafe manner. Modify rsa code to use new function and add calls
2494 to dsa and dh code (which had race conditions before).
2497 *) Include the fixed error library code in the C error file definitions
2498 instead of fixing them up at runtime. This keeps the error code
2499 structures constant.
2502 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2504 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2507 *) Fixes for newer kerberos headers. NB: the casts are needed because
2508 the 'length' field is signed on one version and unsigned on another
2509 with no (?) obvious way to tell the difference, without these VC++
2510 complains. Also the "definition" of FAR (blank) is no longer included
2511 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2512 some needed definitions.
2515 *) Undo Cygwin change.
2518 *) Added support for proxy certificates according to RFC 3820.
2519 Because they may be a security thread to unaware applications,
2520 they must be explicitely allowed in run-time. See
2521 docs/HOWTO/proxy_certificates.txt for further information.
2524 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2526 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2527 server and client random values. Previously
2528 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2529 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2531 This change has negligible security impact because:
2533 1. Server and client random values still have 24 bytes of pseudo random
2536 2. Server and client random values are sent in the clear in the initial
2539 3. The master secret is derived using the premaster secret (48 bytes in
2540 size for static RSA ciphersuites) as well as client server and random
2543 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2546 [Stephen Henson, reported by UK NISCC]
2548 *) Use Windows randomness collection on Cygwin.
2551 *) Fix hang in EGD/PRNGD query when communication socket is closed
2552 prematurely by EGD/PRNGD.
2553 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2555 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2558 *) Back-port of selected performance improvements from development
2559 branch, as well as improved support for PowerPC platforms.
2562 *) Add lots of checks for memory allocation failure, error codes to indicate
2563 failure and freeing up memory if a failure occurs.
2564 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2566 *) Add new -passin argument to dgst.
2569 *) Perform some character comparisons of different types in X509_NAME_cmp:
2570 this is needed for some certificates that reencode DNs into UTF8Strings
2571 (in violation of RFC3280) and can't or wont issue name rollover
2575 *) Make an explicit check during certificate validation to see that
2576 the CA setting in each certificate on the chain is correct. As a
2577 side effect always do the following basic checks on extensions,
2578 not just when there's an associated purpose to the check:
2580 - if there is an unhandled critical extension (unless the user
2581 has chosen to ignore this fault)
2582 - if the path length has been exceeded (if one is set at all)
2583 - that certain extensions fit the associated purpose (if one has
2587 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2589 *) Avoid a race condition when CRLs are checked in a multi threaded
2590 environment. This would happen due to the reordering of the revoked
2591 entries during signature checking and serial number lookup. Now the
2592 encoding is cached and the serial number sort performed under a lock.
2593 Add new STACK function sk_is_sorted().
2596 *) Add Delta CRL to the extension code.
2599 *) Various fixes to s3_pkt.c so alerts are sent properly.
2600 [David Holmes <d.holmes@f5.com>]
2602 *) Reduce the chances of duplicate issuer name and serial numbers (in
2603 violation of RFC3280) using the OpenSSL certificate creation utilities.
2604 This is done by creating a random 64 bit value for the initial serial
2605 number when a serial number file is created or when a self signed
2606 certificate is created using 'openssl req -x509'. The initial serial
2607 number file is created using 'openssl x509 -next_serial' in CA.pl
2608 rather than being initialized to 1.
2611 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2613 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2614 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2615 [Joe Orton, Steve Henson]
2617 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2619 [Joe Orton, Steve Henson]
2621 *) Make it possible to have multiple active certificates with the same
2622 subject in the CA index file. This is done only if the keyword
2623 'unique_subject' is set to 'no' in the main CA section (default
2624 if 'CA_default') of the configuration file. The value is saved
2625 with the database itself in a separate index attribute file,
2626 named like the index file with '.attr' appended to the name.
2629 *) X509 verify fixes. Disable broken certificate workarounds when
2630 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2631 keyUsage extension present. Don't accept CRLs with unhandled critical
2632 extensions: since verify currently doesn't process CRL extensions this
2633 rejects a CRL with *any* critical extensions. Add new verify error codes
2637 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2638 A clarification of RFC2560 will require the use of OCTET STRINGs and
2639 some implementations cannot handle the current raw format. Since OpenSSL
2640 copies and compares OCSP nonces as opaque blobs without any attempt at
2641 parsing them this should not create any compatibility issues.
2644 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2645 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2646 this HMAC (and other) operations are several times slower than OpenSSL
2650 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2651 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2653 *) Use the correct content when signing type "other".
2656 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2658 *) Fix various bugs revealed by running the NISCC test suite:
2660 Stop out of bounds reads in the ASN1 code when presented with
2661 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2663 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2665 If verify callback ignores invalid public key errors don't try to check
2666 certificate signature with the NULL public key.
2670 *) New -ignore_err option in ocsp application to stop the server
2671 exiting on the first error in a request.
2674 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2675 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2679 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2680 extra data after the compression methods not only for TLS 1.0
2681 but also for SSL 3.0 (as required by the specification).
2682 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2684 *) Change X509_certificate_type() to mark the key as exported/exportable
2685 when it's 512 *bits* long, not 512 bytes.
2688 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2689 blocks during encryption.
2692 *) Various fixes to base64 BIO and non blocking I/O. On write
2693 flushes were not handled properly if the BIO retried. On read
2694 data was not being buffered properly and had various logic bugs.
2695 This also affects blocking I/O when the data being decoded is a
2699 *) Various S/MIME bugfixes and compatibility changes:
2700 output correct application/pkcs7 MIME type if
2701 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2702 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2703 of files as .eml work). Correctly handle very long lines in MIME
2707 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2709 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2710 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2711 a protocol version number mismatch like a decryption error
2712 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2715 *) Turn on RSA blinding by default in the default implementation
2716 to avoid a timing attack. Applications that don't want it can call
2717 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2718 They would be ill-advised to do so in most cases.
2719 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2721 *) Change RSA blinding code so that it works when the PRNG is not
2722 seeded (in this case, the secret RSA exponent is abused as
2723 an unpredictable seed -- if it is not unpredictable, there
2724 is no point in blinding anyway). Make RSA blinding thread-safe
2725 by remembering the creator's thread ID in rsa->blinding and
2726 having all other threads use local one-time blinding factors
2727 (this requires more computation than sharing rsa->blinding, but
2728 avoids excessive locking; and if an RSA object is not shared
2729 between threads, blinding will still be very fast).
2732 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2733 ENGINE as defaults for all supported algorithms irrespective of
2734 the 'flags' parameter. 'flags' is now honoured, so applications
2735 should make sure they are passing it correctly.
2738 *) Target "mingw" now allows native Windows code to be generated in
2739 the Cygwin environment as well as with the MinGW compiler.
2742 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2744 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2745 via timing by performing a MAC computation even if incorrrect
2746 block cipher padding has been found. This is a countermeasure
2747 against active attacks where the attacker has to distinguish
2748 between bad padding and a MAC verification error. (CVE-2003-0078)
2750 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2751 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2752 Martin Vuagnoux (EPFL, Ilion)]
2754 *) Make the no-err option work as intended. The intention with no-err
2755 is not to have the whole error stack handling routines removed from
2756 libcrypto, it's only intended to remove all the function name and
2757 reason texts, thereby removing some of the footprint that may not
2758 be interesting if those errors aren't displayed anyway.
2760 NOTE: it's still possible for any application or module to have it's
2761 own set of error texts inserted. The routines are there, just not
2762 used by default when no-err is given.
2765 *) Add support for FreeBSD on IA64.
2766 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2768 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2769 Kerberos function mit_des_cbc_cksum(). Before this change,
2770 the value returned by DES_cbc_cksum() was like the one from
2771 mit_des_cbc_cksum(), except the bytes were swapped.
2772 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2774 *) Allow an application to disable the automatic SSL chain building.
2775 Before this a rather primitive chain build was always performed in
2776 ssl3_output_cert_chain(): an application had no way to send the
2777 correct chain if the automatic operation produced an incorrect result.
2779 Now the chain builder is disabled if either:
2781 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2783 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2785 The reasoning behind this is that an application would not want the
2786 auto chain building to take place if extra chain certificates are
2787 present and it might also want a means of sending no additional
2788 certificates (for example the chain has two certificates and the
2792 *) Add the possibility to build without the ENGINE framework.
2793 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2795 *) Under Win32 gmtime() can return NULL: check return value in
2796 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2799 *) DSA routines: under certain error conditions uninitialized BN objects
2800 could be freed. Solution: make sure initialization is performed early
2801 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2802 Nils Larsch <nla@trustcenter.de> via PR#459)
2805 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2806 checked on reconnect on the client side, therefore session resumption
2807 could still fail with a "ssl session id is different" error. This
2808 behaviour is masked when SSL_OP_ALL is used due to
2809 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2810 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2811 followup to PR #377.
2814 *) IA-32 assembler support enhancements: unified ELF targets, support
2815 for SCO/Caldera platforms, fix for Cygwin shared build.
2818 *) Add support for FreeBSD on sparc64. As a consequence, support for
2819 FreeBSD on non-x86 processors is separate from x86 processors on
2820 the config script, much like the NetBSD support.
2821 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2823 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2825 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2828 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2829 code (06) was taken as the first octet of the session ID and the last
2830 octet was ignored consequently. As a result SSLv2 client side session
2831 caching could not have worked due to the session ID mismatch between
2833 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2837 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2838 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2842 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2843 seems that in spite of existing for more than a year, many application
2844 author have done nothing to provide the necessary callbacks, which
2845 means that this particular engine will not work properly anywhere.
2846 This is a very unfortunate situation which forces us, in the name
2847 of usability, to give the hw_ncipher.c a static lock, which is part
2849 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2850 appear in 0.9.8 or later. We EXPECT application authors to have
2851 dealt properly with this when 0.9.8 is released (unless we actually
2852 make such changes in the libcrypto locking code that changes will
2853 have to be made anyway).
2856 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2857 octets have been read, EOF or an error occurs. Without this change
2858 some truncated ASN1 structures will not produce an error.
2861 *) Disable Heimdal support, since it hasn't been fully implemented.
2862 Still give the possibility to force the use of Heimdal, but with
2863 warnings and a request that patches get sent to openssl-dev.
2866 *) Add the VC-CE target, introduce the WINCE sysname, and add
2867 INSTALL.WCE and appropriate conditionals to make it build.
2868 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2870 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2871 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2872 edit numbers of the version.
2873 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2875 *) Introduce safe string copy and catenation functions
2876 (BUF_strlcpy() and BUF_strlcat()).
2877 [Ben Laurie (CHATS) and Richard Levitte]
2879 *) Avoid using fixed-size buffers for one-line DNs.
2880 [Ben Laurie (CHATS)]
2882 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2883 resizing buffers containing secrets, and use where appropriate.
2884 [Ben Laurie (CHATS)]
2886 *) Avoid using fixed size buffers for configuration file location.
2887 [Ben Laurie (CHATS)]
2889 *) Avoid filename truncation for various CA files.
2890 [Ben Laurie (CHATS)]
2892 *) Use sizeof in preference to magic numbers.
2893 [Ben Laurie (CHATS)]
2895 *) Avoid filename truncation in cert requests.
2896 [Ben Laurie (CHATS)]
2898 *) Add assertions to check for (supposedly impossible) buffer
2900 [Ben Laurie (CHATS)]
2902 *) Don't cache truncated DNS entries in the local cache (this could
2903 potentially lead to a spoofing attack).
2904 [Ben Laurie (CHATS)]
2906 *) Fix various buffers to be large enough for hex/decimal
2907 representations in a platform independent manner.
2908 [Ben Laurie (CHATS)]
2910 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2911 resizing buffers containing secrets, and use where appropriate.
2912 [Ben Laurie (CHATS)]
2914 *) Add BIO_indent() to avoid much slightly worrying code to do
2916 [Ben Laurie (CHATS)]
2918 *) Convert sprintf()/BIO_puts() to BIO_printf().
2919 [Ben Laurie (CHATS)]
2921 *) buffer_gets() could terminate with the buffer only half
2923 [Ben Laurie (CHATS)]
2925 *) Add assertions to prevent user-supplied crypto functions from
2926 overflowing internal buffers by having large block sizes, etc.
2927 [Ben Laurie (CHATS)]
2929 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2931 [Ben Laurie (CHATS)]
2933 *) Eliminate unused copy of key in RC4.
2934 [Ben Laurie (CHATS)]
2936 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2937 [Ben Laurie (CHATS)]
2939 *) Fix off-by-one error in EGD path.
2940 [Ben Laurie (CHATS)]
2942 *) If RANDFILE path is too long, ignore instead of truncating.
2943 [Ben Laurie (CHATS)]
2945 *) Eliminate unused and incorrectly sized X.509 structure
2947 [Ben Laurie (CHATS)]
2949 *) Eliminate unused and dangerous function knumber().
2950 [Ben Laurie (CHATS)]
2952 *) Eliminate unused and dangerous structure, KSSL_ERR.
2953 [Ben Laurie (CHATS)]
2955 *) Protect against overlong session ID context length in an encoded
2956 session object. Since these are local, this does not appear to be
2958 [Ben Laurie (CHATS)]
2960 *) Change from security patch (see 0.9.6e below) that did not affect
2961 the 0.9.6 release series:
2963 Remote buffer overflow in SSL3 protocol - an attacker could
2964 supply an oversized master key in Kerberos-enabled versions.
2966 [Ben Laurie (CHATS)]
2968 *) Change the SSL kerb5 codes to match RFC 2712.
2971 *) Make -nameopt work fully for req and add -reqopt switch.
2972 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2974 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2975 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2977 *) Make sure tests can be performed even if the corresponding algorithms
2978 have been removed entirely. This was also the last step to make
2979 OpenSSL compilable with DJGPP under all reasonable conditions.
2980 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2982 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2983 to allow version independent disabling of normally unselected ciphers,
2984 which may be activated as a side-effect of selecting a single cipher.
2986 (E.g., cipher list string "RSA" enables ciphersuites that are left
2987 out of "ALL" because they do not provide symmetric encryption.
2988 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2989 [Lutz Jaenicke, Bodo Moeller]
2991 *) Add appropriate support for separate platform-dependent build
2992 directories. The recommended way to make a platform-dependent
2993 build directory is the following (tested on Linux), maybe with
2996 # Place yourself outside of the OpenSSL source tree. In
2997 # this example, the environment variable OPENSSL_SOURCE
2998 # is assumed to contain the absolute OpenSSL source directory.
2999 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3000 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3001 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3002 mkdir -p `dirname $F`
3003 ln -s $OPENSSL_SOURCE/$F $F
3006 To be absolutely sure not to disturb the source tree, a "make clean"
3007 is a good thing. If it isn't successfull, don't worry about it,
3008 it probably means the source directory is very clean.
3011 *) Make sure any ENGINE control commands make local copies of string
3012 pointers passed to them whenever necessary. Otherwise it is possible
3013 the caller may have overwritten (or deallocated) the original string
3014 data when a later ENGINE operation tries to use the stored values.
3015 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3017 *) Improve diagnostics in file reading and command-line digests.
3018 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3020 *) Add AES modes CFB and OFB to the object database. Correct an
3021 error in AES-CFB decryption.
3024 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3025 allows existing EVP_CIPHER_CTX structures to be reused after
3026 calling EVP_*Final(). This behaviour is used by encryption
3027 BIOs and some applications. This has the side effect that
3028 applications must explicitly clean up cipher contexts with
3029 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3032 *) Check the values of dna and dnb in bn_mul_recursive before calling
3033 bn_mul_comba (a non zero value means the a or b arrays do not contain
3034 n2 elements) and fallback to bn_mul_normal if either is not zero.
3037 *) Fix escaping of non-ASCII characters when using the -subj option
3038 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3041 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3042 form for "surname", serialNumber has no short form.
3043 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3044 therefore remove "mail" short name for "internet 7".
3045 The OID for unique identifiers in X509 certificates is
3046 x500UniqueIdentifier, not uniqueIdentifier.
3047 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3050 *) Add an "init" command to the ENGINE config module and auto initialize
3051 ENGINEs. Without any "init" command the ENGINE will be initialized
3052 after all ctrl commands have been executed on it. If init=1 the
3053 ENGINE is initailized at that point (ctrls before that point are run
3054 on the uninitialized ENGINE and after on the initialized one). If
3055 init=0 then the ENGINE will not be iniatialized at all.
3058 *) Fix the 'app_verify_callback' interface so that the user-defined
3059 argument is actually passed to the callback: In the
3060 SSL_CTX_set_cert_verify_callback() prototype, the callback
3061 declaration has been changed from
3064 int (*cb)(X509_STORE_CTX *,void *);
3065 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3066 i=s->ctx->app_verify_callback(&ctx)
3067 has been changed into
3068 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3070 To update applications using SSL_CTX_set_cert_verify_callback(),
3071 a dummy argument can be added to their callback functions.
3072 [D. K. Smetters <smetters@parc.xerox.com>]
3074 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3075 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3077 *) Add and OPENSSL_LOAD_CONF define which will cause
3078 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3079 This allows older applications to transparently support certain
3080 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3081 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3082 load the config file and OPENSSL_add_all_algorithms_conf() which will
3083 always load it have also been added.
3086 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3087 Adjust NIDs and EVP layer.
3088 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3090 *) Config modules support in openssl utility.
3092 Most commands now load modules from the config file,
3093 though in a few (such as version) this isn't done
3094 because it couldn't be used for anything.
3096 In the case of ca and req the config file used is
3097 the same as the utility itself: that is the -config
3098 command line option can be used to specify an
3102 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3103 use "openssl_conf" if filename is NULL use default openssl config file.
3106 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3107 config section name. Add a new flag to tolerate a missing config file
3108 and move code to CONF_modules_load_file().
3111 *) Support for crypto accelerator cards from Accelerated Encryption
3112 Processing, www.aep.ie. (Use engine 'aep')
3113 The support was copied from 0.9.6c [engine] and adapted/corrected
3114 to work with the new engine framework.
3115 [AEP Inc. and Richard Levitte]
3117 *) Support for SureWare crypto accelerator cards from Baltimore
3118 Technologies. (Use engine 'sureware')
3119 The support was copied from 0.9.6c [engine] and adapted
3120 to work with the new engine framework.
3123 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3124 make the newer ENGINE framework commands for the CHIL engine work.
3125 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3127 *) Make it possible to produce shared libraries on ReliantUNIX.
3128 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3130 *) Add the configuration target debug-linux-ppro.
3131 Make 'openssl rsa' use the general key loading routines
3132 implemented in apps.c, and make those routines able to
3133 handle the key format FORMAT_NETSCAPE and the variant
3135 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3137 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3138 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3140 *) Add -keyform to rsautl, and document -engine.
3141 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3143 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3144 BIO_R_NO_SUCH_FILE error code rather than the generic
3145 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3148 *) Add new functions
3150 ERR_peek_last_error_line
3151 ERR_peek_last_error_line_data.
3152 These are similar to
3155 ERR_peek_error_line_data,
3156 but report on the latest error recorded rather than the first one
3157 still in the error queue.
3158 [Ben Laurie, Bodo Moeller]
3160 *) default_algorithms option in ENGINE config module. This allows things
3162 default_algorithms = ALL
3163 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3166 *) Prelminary ENGINE config module.
3169 *) New experimental application configuration code.
3172 *) Change the AES code to follow the same name structure as all other
3173 symmetric ciphers, and behave the same way. Move everything to
3174 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3175 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3177 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3178 [Ben Laurie and Theo de Raadt]
3180 *) Add option to output public keys in req command.
3181 [Massimiliano Pala madwolf@openca.org]
3183 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3184 (up to about 10% better than before for P-192 and P-224).
3187 *) New functions/macros
3189 SSL_CTX_set_msg_callback(ctx, cb)
3190 SSL_CTX_set_msg_callback_arg(ctx, arg)
3191 SSL_set_msg_callback(ssl, cb)
3192 SSL_set_msg_callback_arg(ssl, arg)
3194 to request calling a callback function
3196 void cb(int write_p, int version, int content_type,
3197 const void *buf, size_t len, SSL *ssl, void *arg)
3199 whenever a protocol message has been completely received
3200 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3201 protocol version according to which the SSL library interprets
3202 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3203 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3204 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3205 specification (change_cipher_spec(20), alert(21), handshake(22)).
3206 'buf' and 'len' point to the actual message, 'ssl' to the
3207 SSL object, and 'arg' is the application-defined value set by
3208 SSL[_CTX]_set_msg_callback_arg().
3210 'openssl s_client' and 'openssl s_server' have new '-msg' options
3211 to enable a callback that displays all protocol messages.
3214 *) Change the shared library support so shared libraries are built as
3215 soon as the corresponding static library is finished, and thereby get
3216 openssl and the test programs linked against the shared library.
3217 This still only happens when the keyword "shard" has been given to
3218 the configuration scripts.
3220 NOTE: shared library support is still an experimental thing, and
3221 backward binary compatibility is still not guaranteed.
3222 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3224 *) Add support for Subject Information Access extension.
3225 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3227 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3228 additional bytes when new memory had to be allocated, not just
3229 when reusing an existing buffer.
3232 *) New command line and configuration option 'utf8' for the req command.
3233 This allows field values to be specified as UTF8 strings.
3236 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3237 runs for the former and machine-readable output for the latter.
3240 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3241 of the e-mail address in the DN (i.e., it will go into a certificate
3242 extension only). The new configuration file option 'email_in_dn = no'
3243 has the same effect.
3244 [Massimiliano Pala madwolf@openca.org]
3246 *) Change all functions with names starting with des_ to be starting
3247 with DES_ instead. Add wrappers that are compatible with libdes,
3248 but are named _ossl_old_des_*. Finally, add macros that map the
3249 des_* symbols to the corresponding _ossl_old_des_* if libdes
3250 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3251 desired, the des_* symbols will be mapped to DES_*, with one
3254 Since we provide two compatibility mappings, the user needs to
3255 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3256 compatibility is desired. The default (i.e., when that macro
3257 isn't defined) is OpenSSL 0.9.6c compatibility.
3259 There are also macros that enable and disable the support of old
3260 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3261 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3262 are defined, the default will apply: to support the old des routines.
3264 In either case, one must include openssl/des.h to get the correct
3265 definitions. Do not try to just include openssl/des_old.h, that
3268 NOTE: This is a major break of an old API into a new one. Software
3269 authors are encouraged to switch to the DES_ style functions. Some
3270 time in the future, des_old.h and the libdes compatibility functions
3271 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3272 default), and then completely removed.
3275 *) Test for certificates which contain unsupported critical extensions.
3276 If such a certificate is found during a verify operation it is
3277 rejected by default: this behaviour can be overridden by either
3278 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3279 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3280 X509_supported_extension() has also been added which returns 1 if a
3281 particular extension is supported.
3284 *) Modify the behaviour of EVP cipher functions in similar way to digests
3285 to retain compatibility with existing code.
3288 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3289 compatibility with existing code. In particular the 'ctx' parameter does
3290 not have to be to be initialized before the call to EVP_DigestInit() and
3291 it is tidied up after a call to EVP_DigestFinal(). New function
3292 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3293 EVP_MD_CTX_copy() changed to not require the destination to be
3294 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3295 requires the destination to be valid.
3297 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3298 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3301 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3302 so that complete 'Handshake' protocol structures are kept in memory
3303 instead of overwriting 'msg_type' and 'length' with 'body' data.
3306 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3307 [Massimo Santin via Richard Levitte]
3309 *) Major restructuring to the underlying ENGINE code. This includes
3310 reduction of linker bloat, separation of pure "ENGINE" manipulation
3311 (initialisation, etc) from functionality dealing with implementations
3312 of specific crypto iterfaces. This change also introduces integrated
3313 support for symmetric ciphers and digest implementations - so ENGINEs
3314 can now accelerate these by providing EVP_CIPHER and EVP_MD
3315 implementations of their own. This is detailed in crypto/engine/README
3316 as it couldn't be adequately described here. However, there are a few
3317 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3318 were changed in the original introduction of ENGINE code have now
3319 reverted back - the hooking from this code to ENGINE is now a good
3320 deal more passive and at run-time, operations deal directly with
3321 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3322 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3323 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3324 they were not being used by the framework as there is no concept of a
3325 BIGNUM_METHOD and they could not be generalised to the new
3326 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3327 ENGINE_cpy() has been removed as it cannot be consistently defined in
3331 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3334 *) Change mkdef.pl to sort symbols that get the same entry number,
3335 and make sure the automatically generated functions ERR_load_*
3336 become part of libeay.num as well.
3339 *) New function SSL_renegotiate_pending(). This returns true once
3340 renegotiation has been requested (either SSL_renegotiate() call
3341 or HelloRequest/ClientHello receveived from the peer) and becomes
3342 false once a handshake has been completed.
3343 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3344 sends a HelloRequest, but does not ensure that a handshake takes
3345 place. SSL_renegotiate_pending() is useful for checking if the
3346 client has followed the request.)
3349 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3350 By default, clients may request session resumption even during
3351 renegotiation (if session ID contexts permit); with this option,
3352 session resumption is possible only in the first handshake.
3354 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3355 more bits available for options that should not be part of
3356 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3359 *) Add some demos for certificate and certificate request creation.
3362 *) Make maximum certificate chain size accepted from the peer application
3363 settable (SSL*_get/set_max_cert_list()), as proposed by
3364 "Douglas E. Engert" <deengert@anl.gov>.
3367 *) Add support for shared libraries for Unixware-7
3368 (Boyd Lynn Gerber <gerberb@zenez.com>).
3371 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3372 be done prior to destruction. Use this to unload error strings from
3373 ENGINEs that load their own error strings. NB: This adds two new API
3374 functions to "get" and "set" this destroy handler in an ENGINE.
3377 *) Alter all existing ENGINE implementations (except "openssl" and
3378 "openbsd") to dynamically instantiate their own error strings. This
3379 makes them more flexible to be built both as statically-linked ENGINEs
3380 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3381 Also, add stub code to each that makes building them as self-contained
3382 shared-libraries easier (see README.ENGINE).
3385 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3386 implementations into applications that are completely implemented in
3387 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3388 commands that can be used to configure what shared-library to load and
3389 to control aspects of the way it is handled. Also, made an update to
3390 the README.ENGINE file that brings its information up-to-date and
3391 provides some information and instructions on the "dynamic" ENGINE
3392 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3395 *) Make it possible to unload ranges of ERR strings with a new
3396 "ERR_unload_strings" function.
3399 *) Add a copy() function to EVP_MD.
3402 *) Make EVP_MD routines take a context pointer instead of just the
3403 md_data void pointer.
3406 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3407 that the digest can only process a single chunk of data
3408 (typically because it is provided by a piece of
3409 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3410 is only going to provide a single chunk of data, and hence the
3411 framework needn't accumulate the data for oneshot drivers.
3414 *) As with "ERR", make it possible to replace the underlying "ex_data"
3415 functions. This change also alters the storage and management of global
3416 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3417 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3418 index counters. The API functions that use this state have been changed
3419 to take a "class_index" rather than pointers to the class's local STACK
3420 and counter, and there is now an API function to dynamically create new
3421 classes. This centralisation allows us to (a) plug a lot of the
3422 thread-safety problems that existed, and (b) makes it possible to clean
3423 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3424 such data would previously have always leaked in application code and
3425 workarounds were in place to make the memory debugging turn a blind eye
3426 to it. Application code that doesn't use this new function will still
3427 leak as before, but their memory debugging output will announce it now
3428 rather than letting it slide.
3430 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3431 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3432 has a return value to indicate success or failure.
3435 *) Make it possible to replace the underlying "ERR" functions such that the
3436 global state (2 LHASH tables and 2 locks) is only used by the "default"
3437 implementation. This change also adds two functions to "get" and "set"
3438 the implementation prior to it being automatically set the first time
3439 any other ERR function takes place. Ie. an application can call "get",
3440 pass the return value to a module it has just loaded, and that module
3441 can call its own "set" function using that value. This means the
3442 module's "ERR" operations will use (and modify) the error state in the
3443 application and not in its own statically linked copy of OpenSSL code.
3446 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3447 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3448 the operation, and provides a more encapsulated way for external code
3449 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3450 to use these functions rather than manually incrementing the counts.
3452 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3455 *) Add EVP test program.
3458 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3461 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3462 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3463 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3464 These allow a CRL to be built without having to access X509_CRL fields
3465 directly. Modify 'ca' application to use new functions.
3468 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3469 bug workarounds. Rollback attack detection is a security feature.
3470 The problem will only arise on OpenSSL servers when TLSv1 is not
3471 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3472 Software authors not wanting to support TLSv1 will have special reasons
3473 for their choice and can explicitly enable this option.
3474 [Bodo Moeller, Lutz Jaenicke]
3476 *) Rationalise EVP so it can be extended: don't include a union of
3477 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3478 (similar to those existing for EVP_CIPHER_CTX).
3483 EVP_MD_CTX_init(&md); /* new function call */
3484 EVP_DigestInit(&md, EVP_sha1());
3485 EVP_DigestUpdate(&md, in, len);
3486 EVP_DigestFinal(&md, out, NULL);
3487 EVP_MD_CTX_cleanup(&md); /* new function call */
3491 *) Make DES key schedule conform to the usual scheme, as well as
3492 correcting its structure. This means that calls to DES functions
3493 now have to pass a pointer to a des_key_schedule instead of a
3494 plain des_key_schedule (which was actually always a pointer
3497 des_key_schedule ks;
3499 des_set_key_checked(..., &ks);
3500 des_ncbc_encrypt(..., &ks, ...);
3502 (Note that a later change renames 'des_...' into 'DES_...'.)
3505 *) Initial reduction of linker bloat: the use of some functions, such as
3506 PEM causes large amounts of unused functions to be linked in due to
3507 poor organisation. For example pem_all.c contains every PEM function
3508 which has a knock on effect of linking in large amounts of (unused)
3509 ASN1 code. Grouping together similar functions and splitting unrelated
3510 functions prevents this.
3513 *) Cleanup of EVP macros.
3516 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3517 correct _ecb suffix.
3520 *) Add initial OCSP responder support to ocsp application. The
3521 revocation information is handled using the text based index
3522 use by the ca application. The responder can either handle
3523 requests generated internally, supplied in files (for example
3524 via a CGI script) or using an internal minimal server.
3527 *) Add configuration choices to get zlib compression for TLS.
3530 *) Changes to Kerberos SSL for RFC 2712 compliance:
3531 1. Implemented real KerberosWrapper, instead of just using
3532 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3533 2. Implemented optional authenticator field of KerberosWrapper.
3535 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3536 and authenticator structs; see crypto/krb5/.
3538 Generalized Kerberos calls to support multiple Kerberos libraries.
3539 [Vern Staats <staatsvr@asc.hpc.mil>,
3540 Jeffrey Altman <jaltman@columbia.edu>
3541 via Richard Levitte]
3543 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3544 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3545 values for each of the key sizes rather than having just
3546 parameters (and 'speed' generating keys each time).
3549 *) Speed up EVP routines.
3552 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3553 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3554 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3555 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3557 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3558 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3559 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3562 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3564 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3567 *) Added the OS2-EMX target.
3568 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3570 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3571 to support NCONF routines in extension code. New function CONF_set_nconf()
3572 to allow functions which take an NCONF to also handle the old LHASH
3573 structure: this means that the old CONF compatible routines can be
3574 retained (in particular wrt extensions) without having to duplicate the
3575 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3578 *) Enhance the general user interface with mechanisms for inner control
3579 and with possibilities to have yes/no kind of prompts.
3582 *) Change all calls to low level digest routines in the library and
3583 applications to use EVP. Add missing calls to HMAC_cleanup() and
3584 don't assume HMAC_CTX can be copied using memcpy().
3585 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3587 *) Add the possibility to control engines through control names but with
3588 arbitrary arguments instead of just a string.
3589 Change the key loaders to take a UI_METHOD instead of a callback
3590 function pointer. NOTE: this breaks binary compatibility with earlier
3591 versions of OpenSSL [engine].
3592 Adapt the nCipher code for these new conditions and add a card insertion
3596 *) Enhance the general user interface with mechanisms to better support
3597 dialog box interfaces, application-defined prompts, the possibility
3598 to use defaults (for example default passwords from somewhere else)
3599 and interrupts/cancellations.
3602 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3603 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3606 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3607 tidy up some unnecessarily weird code in 'sk_new()').
3608 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3610 *) Change the key loading routines for ENGINEs to use the same kind
3611 callback (pem_password_cb) as all other routines that need this
3615 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3616 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3617 than this minimum value is recommended.
3620 *) New random seeder for OpenVMS, using the system process statistics
3621 that are easily reachable.
3624 *) Windows apparently can't transparently handle global
3625 variables defined in DLLs. Initialisations such as:
3627 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3629 wont compile. This is used by the any applications that need to
3630 declare their own ASN1 modules. This was fixed by adding the option
3631 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3632 needed for static libraries under Win32.
3635 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3636 setting of purpose and trust fields. New X509_STORE trust and
3637 purpose functions and tidy up setting in other SSL functions.
3640 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3641 structure. These are inherited by X509_STORE_CTX when it is
3642 initialised. This allows various defaults to be set in the
3643 X509_STORE structure (such as flags for CRL checking and custom
3644 purpose or trust settings) for functions which only use X509_STORE_CTX
3645 internally such as S/MIME.
3647 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3648 trust settings if they are not set in X509_STORE. This allows X509_STORE
3649 purposes and trust (in S/MIME for example) to override any set by default.
3651 Add command line options for CRL checking to smime, s_client and s_server
3655 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3656 are set then the CRL is looked up in the X509_STORE structure and
3657 its validity and signature checked, then if the certificate is found
3658 in the CRL the verify fails with a revoked error.
3660 Various new CRL related callbacks added to X509_STORE_CTX structure.
3662 Command line options added to 'verify' application to support this.
3664 This needs some additional work, such as being able to handle multiple
3665 CRLs with different times, extension based lookup (rather than just
3666 by subject name) and ultimately more complete V2 CRL extension
3670 *) Add a general user interface API (crypto/ui/). This is designed
3671 to replace things like des_read_password and friends (backward
3672 compatibility functions using this new API are provided).
3673 The purpose is to remove prompting functions from the DES code
3674 section as well as provide for prompting through dialog boxes in
3675 a window system and the like.
3678 *) Add "ex_data" support to ENGINE so implementations can add state at a
3679 per-structure level rather than having to store it globally.
3682 *) Make it possible for ENGINE structures to be copied when retrieved by
3683 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3684 This causes the "original" ENGINE structure to act like a template,
3685 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3686 operational state can be localised to each ENGINE structure, despite the
3687 fact they all share the same "methods". New ENGINE structures returned in
3688 this case have no functional references and the return value is the single
3689 structural reference. This matches the single structural reference returned
3690 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3694 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3695 needs to match any other type at all we need to manually clear the
3699 *) Changes to the "openssl engine" utility to include;
3700 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3701 about an ENGINE's available control commands.
3702 - executing control commands from command line arguments using the
3703 '-pre' and '-post' switches. '-post' is only used if '-t' is
3704 specified and the ENGINE is successfully initialised. The syntax for
3705 the individual commands are colon-separated, for example;
3706 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3709 *) New dynamic control command support for ENGINEs. ENGINEs can now
3710 declare their own commands (numbers), names (strings), descriptions,
3711 and input types for run-time discovery by calling applications. A
3712 subset of these commands are implicitly classed as "executable"
3713 depending on their input type, and only these can be invoked through
3714 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3715 can be based on user input, config files, etc). The distinction is
3716 that "executable" commands cannot return anything other than a boolean
3717 result and can only support numeric or string input, whereas some
3718 discoverable commands may only be for direct use through
3719 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3720 pointers, or other custom uses. The "executable" commands are to
3721 support parameterisations of ENGINE behaviour that can be
3722 unambiguously defined by ENGINEs and used consistently across any
3723 OpenSSL-based application. Commands have been added to all the
3724 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3725 control over shared-library paths without source code alterations.
3728 *) Changed all ENGINE implementations to dynamically allocate their
3729 ENGINEs rather than declaring them statically. Apart from this being
3730 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3731 this also allows the implementations to compile without using the
3732 internal engine_int.h header.
3735 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3736 'const' value. Any code that should be able to modify a RAND_METHOD
3737 should already have non-const pointers to it (ie. they should only
3738 modify their own ones).
3741 *) Made a variety of little tweaks to the ENGINE code.
3742 - "atalla" and "ubsec" string definitions were moved from header files
3743 to C code. "nuron" string definitions were placed in variables
3744 rather than hard-coded - allowing parameterisation of these values
3745 later on via ctrl() commands.
3746 - Removed unused "#if 0"'d code.
3747 - Fixed engine list iteration code so it uses ENGINE_free() to release
3748 structural references.
3749 - Constified the RAND_METHOD element of ENGINE structures.
3750 - Constified various get/set functions as appropriate and added
3751 missing functions (including a catch-all ENGINE_cpy that duplicates
3752 all ENGINE values onto a new ENGINE except reference counts/state).
3753 - Removed NULL parameter checks in get/set functions. Setting a method
3754 or function to NULL is a way of cancelling out a previously set
3755 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3756 and doesn't justify the extra error symbols and code.
3757 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3758 flags from engine_int.h to engine.h.
3759 - Changed prototypes for ENGINE handler functions (init(), finish(),
3760 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3763 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3764 to the algorithm using long division. The binary algorithm can be
3765 used only if the modulus is odd. On 32-bit systems, it is faster
3766 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3767 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3768 up to 450 bits. In 64-bit environments, the binary algorithm
3769 appears to be advantageous for much longer moduli; here we use it
3770 for moduli up to 2048 bits.
3773 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3774 could not support the combine flag in choice fields.
3777 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3778 extensions from a certificate request to the certificate.
3781 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3782 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3783 file: this allows the display of the certificate about to be
3784 signed to be customised, to allow certain fields to be included
3785 or excluded and extension details. The old system didn't display
3786 multicharacter strings properly, omitted fields not in the policy
3787 and couldn't display additional details such as extensions.
3790 *) Function EC_POINTs_mul for multiple scalar multiplication
3791 of an arbitrary number of elliptic curve points
3792 \sum scalars[i]*points[i],
3793 optionally including the generator defined for the EC_GROUP:
3794 scalar*generator + \sum scalars[i]*points[i].
3796 EC_POINT_mul is a simple wrapper function for the typical case
3797 that the point list has just one item (besides the optional
3801 *) First EC_METHODs for curves over GF(p):
3803 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3804 operations and provides various method functions that can also
3805 operate with faster implementations of modular arithmetic.
3807 EC_GFp_mont_method() reuses most functions that are part of
3808 EC_GFp_simple_method, but uses Montgomery arithmetic.
3810 [Bodo Moeller; point addition and point doubling
3811 implementation directly derived from source code provided by
3812 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3814 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3815 crypto/ec/ec_lib.c):
3817 Curves are EC_GROUP objects (with an optional group generator)
3818 based on EC_METHODs that are built into the library.
3820 Points are EC_POINT objects based on EC_GROUP objects.
3822 Most of the framework would be able to handle curves over arbitrary
3823 finite fields, but as there are no obvious types for fields other
3824 than GF(p), some functions are limited to that for now.
3827 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3828 that the file contains a complete HTTP response.
3831 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3832 change the def and num file printf format specifier from "%-40sXXX"
3833 to "%-39s XXX". The latter will always guarantee a space after the
3834 field while the former will cause them to run together if the field
3835 is 40 of more characters long.
3838 *) Constify the cipher and digest 'method' functions and structures
3839 and modify related functions to take constant EVP_MD and EVP_CIPHER
3843 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3844 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3847 *) Modify EVP_Digest*() routines so they now return values. Although the
3848 internal software routines can never fail additional hardware versions
3852 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3854 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3855 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3858 ERR_R_NESTED_ASN1_ERROR
3860 ERR_R_MISSING_ASN1_EOS
3861 were 4 .. 9, conflicting with
3862 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3864 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3865 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3867 Add new error code 'ERR_R_INTERNAL_ERROR'.
3870 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3874 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3875 sets the subject name for a new request or supersedes the
3876 subject name in a given request. Formats that can be parsed are
3877 'CN=Some Name, OU=myOU, C=IT'
3879 'CN=Some Name/OU=myOU/C=IT'.
3881 Add options '-batch' and '-verbose' to 'openssl req'.
3882 [Massimiliano Pala <madwolf@hackmasters.net>]
3884 *) Introduce the possibility to access global variables through
3885 functions on platform were that's the best way to handle exporting
3886 global variables in shared libraries. To enable this functionality,
3887 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3888 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3889 is normally done by Configure or something similar).
3891 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3892 in the source file (foo.c) like this:
3894 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3895 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3897 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3898 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3900 OPENSSL_DECLARE_GLOBAL(int,foo);
3901 #define foo OPENSSL_GLOBAL_REF(foo)
3902 OPENSSL_DECLARE_GLOBAL(double,bar);
3903 #define bar OPENSSL_GLOBAL_REF(bar)
3905 The #defines are very important, and therefore so is including the
3906 header file everywhere where the defined globals are used.
3908 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3909 of ASN.1 items, but that structure is a bit different.
3911 The largest change is in util/mkdef.pl which has been enhanced with
3912 better and easier to understand logic to choose which symbols should
3913 go into the Windows .def files as well as a number of fixes and code
3914 cleanup (among others, algorithm keywords are now sorted
3915 lexicographically to avoid constant rewrites).
3918 *) In BN_div() keep a copy of the sign of 'num' before writing the
3919 result to 'rm' because if rm==num the value will be overwritten
3920 and produce the wrong result if 'num' is negative: this caused
3921 problems with BN_mod() and BN_nnmod().
3924 *) Function OCSP_request_verify(). This checks the signature on an
3925 OCSP request and verifies the signer certificate. The signer
3926 certificate is just checked for a generic purpose and OCSP request
3930 *) Add OCSP_check_validity() function to check the validity of OCSP
3931 responses. OCSP responses are prepared in real time and may only
3932 be a few seconds old. Simply checking that the current time lies
3933 between thisUpdate and nextUpdate max reject otherwise valid responses
3934 caused by either OCSP responder or client clock inaccuracy. Instead
3935 we allow thisUpdate and nextUpdate to fall within a certain period of
3936 the current time. The age of the response can also optionally be
3937 checked. Two new options -validity_period and -status_age added to
3941 *) If signature or public key algorithm is unrecognized print out its
3942 OID rather that just UNKNOWN.
3945 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3946 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3947 ID to be generated from the issuer certificate alone which can then be
3948 passed to OCSP_id_issuer_cmp().
3951 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3952 ASN1 modules to export functions returning ASN1_ITEM pointers
3953 instead of the ASN1_ITEM structures themselves. This adds several
3954 new macros which allow the underlying ASN1 function/structure to
3955 be accessed transparently. As a result code should not use ASN1_ITEM
3956 references directly (such as &X509_it) but instead use the relevant
3957 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3958 use of the new ASN1 code on platforms where exporting structures
3959 is problematical (for example in shared libraries) but exporting
3960 functions returning pointers to structures is not.
3963 *) Add support for overriding the generation of SSL/TLS session IDs.
3964 These callbacks can be registered either in an SSL_CTX or per SSL.
3965 The purpose of this is to allow applications to control, if they wish,
3966 the arbitrary values chosen for use as session IDs, particularly as it
3967 can be useful for session caching in multiple-server environments. A
3968 command-line switch for testing this (and any client code that wishes
3969 to use such a feature) has been added to "s_server".
3970 [Geoff Thorpe, Lutz Jaenicke]
3972 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3973 of the form '#if defined(...) || defined(...) || ...' and
3974 '#if !defined(...) && !defined(...) && ...'. This also avoids
3975 the growing number of special cases it was previously handling.
3978 *) Make all configuration macros available for application by making
3979 sure they are available in opensslconf.h, by giving them names starting
3980 with "OPENSSL_" to avoid conflicts with other packages and by making
3981 sure e_os2.h will cover all platform-specific cases together with
3983 Additionally, it is now possible to define configuration/platform-
3984 specific names (called "system identities"). In the C code, these
3985 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3986 macro with the name beginning with "OPENSSL_SYS_", which is determined
3987 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3991 *) New option -set_serial to 'req' and 'x509' this allows the serial
3992 number to use to be specified on the command line. Previously self
3993 signed certificates were hard coded with serial number 0 and the
3994 CA options of 'x509' had to use a serial number in a file which was
3998 *) New options to 'ca' utility to support V2 CRL entry extensions.
3999 Currently CRL reason, invalidity date and hold instruction are
4000 supported. Add new CRL extensions to V3 code and some new objects.
4003 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4004 disable standard block padding (aka PKCS#5 padding) in the EVP
4005 API, which was previously mandatory. This means that the data is
4006 not padded in any way and so the total length much be a multiple
4007 of the block size, otherwise an error occurs.
4010 *) Initial (incomplete) OCSP SSL support.
4013 *) New function OCSP_parse_url(). This splits up a URL into its host,
4014 port and path components: primarily to parse OCSP URLs. New -url
4015 option to ocsp utility.
4018 *) New nonce behavior. The return value of OCSP_check_nonce() now
4019 reflects the various checks performed. Applications can decide
4020 whether to tolerate certain situations such as an absent nonce
4021 in a response when one was present in a request: the ocsp application
4022 just prints out a warning. New function OCSP_add1_basic_nonce()
4023 this is to allow responders to include a nonce in a response even if
4024 the request is nonce-less.
4027 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4028 skipped when using openssl x509 multiple times on a single input file,
4029 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4032 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4033 set string type: to handle setting ASN1_TIME structures. Fix ca
4034 utility to correctly initialize revocation date of CRLs.
4037 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4038 the clients preferred ciphersuites and rather use its own preferences.
4039 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4040 Internet Explorer by ensuring unchanged hash method during stepup.
4041 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4044 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4045 to aes and add a new 'exist' option to print out symbols that don't
4049 *) Additional options to ocsp utility to allow flags to be set and
4050 additional certificates supplied.
4053 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4054 OCSP client a number of certificate to only verify the response
4058 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4059 handle the new API. Currently only ECB, CBC modes supported. Add new
4062 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4063 Encryption Standard (AES) Ciphersuites for Transport Layer
4064 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4065 not enabled by default and were not part of the "ALL" ciphersuite
4066 alias because they were not yet official; they could be
4067 explicitly requested by specifying the "AESdraft" ciphersuite
4068 group alias. In the final release of OpenSSL 0.9.7, the group
4069 alias is called "AES" and is part of "ALL".)
4070 [Ben Laurie, Steve Henson, Bodo Moeller]
4072 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4073 request to response.
4076 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4077 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4078 extract information from a certificate request. OCSP_response_create()
4079 creates a response and optionally adds a basic response structure.
4080 OCSP_basic_add1_status() adds a complete single response to a basic
4081 response and returns the OCSP_SINGLERESP structure just added (to allow
4082 extensions to be included for example). OCSP_basic_add1_cert() adds a
4083 certificate to a basic response and OCSP_basic_sign() signs a basic
4084 response with various flags. New helper functions ASN1_TIME_check()
4085 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4086 (converts ASN1_TIME to GeneralizedTime).
4089 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4090 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4091 structure from a certificate. X509_pubkey_digest() digests the public_key
4092 contents: this is used in various key identifiers.
4095 *) Make sk_sort() tolerate a NULL argument.
4096 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4098 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4099 passed by the function are trusted implicitly. If any of them signed the
4100 response then it is assumed to be valid and is not verified.
4103 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4104 to data. This was previously part of the PKCS7 ASN1 code. This
4105 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4106 [Steve Henson, reported by Kenneth R. Robinette
4107 <support@securenetterm.com>]
4109 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4110 routines: without these tracing memory leaks is very painful.
4111 Fix leaks in PKCS12 and PKCS7 routines.
4114 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4115 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4116 effectively meant GeneralizedTime would never be used. Now it
4117 is initialised to -1 but X509_time_adj() now has to check the value
4118 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4119 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4120 [Steve Henson, reported by Kenneth R. Robinette
4121 <support@securenetterm.com>]
4123 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4124 result in a zero length in the ASN1_INTEGER structure which was
4125 not consistent with the structure when d2i_ASN1_INTEGER() was used
4126 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4127 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4128 where it did not print out a minus for negative ASN1_INTEGER.
4131 *) Add summary printout to ocsp utility. The various functions which
4132 convert status values to strings have been renamed to:
4133 OCSP_response_status_str(), OCSP_cert_status_str() and
4134 OCSP_crl_reason_str() and are no longer static. New options
4135 to verify nonce values and to disable verification. OCSP response
4136 printout format cleaned up.
4139 *) Add additional OCSP certificate checks. These are those specified
4140 in RFC2560. This consists of two separate checks: the CA of the
4141 certificate being checked must either be the OCSP signer certificate
4142 or the issuer of the OCSP signer certificate. In the latter case the
4143 OCSP signer certificate must contain the OCSP signing extended key
4144 usage. This check is performed by attempting to match the OCSP
4145 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4146 in the OCSP_CERTID structures of the response.
4149 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4150 and related routines. This uses the standard OpenSSL certificate
4151 verify routines to perform initial checks (just CA validity) and
4152 to obtain the certificate chain. Then additional checks will be
4153 performed on the chain. Currently the root CA is checked to see
4154 if it is explicitly trusted for OCSP signing. This is used to set
4155 a root CA as a global signing root: that is any certificate that
4156 chains to that CA is an acceptable OCSP signing certificate.
4159 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4160 extensions from a separate configuration file.
4161 As when reading extensions from the main configuration file,
4162 the '-extensions ...' option may be used for specifying the
4164 [Massimiliano Pala <madwolf@comune.modena.it>]
4166 *) New OCSP utility. Allows OCSP requests to be generated or
4167 read. The request can be sent to a responder and the output
4168 parsed, outputed or printed in text form. Not complete yet:
4169 still needs to check the OCSP response validity.
4172 *) New subcommands for 'openssl ca':
4173 'openssl ca -status <serial>' prints the status of the cert with
4174 the given serial number (according to the index file).
4175 'openssl ca -updatedb' updates the expiry status of certificates
4177 [Massimiliano Pala <madwolf@comune.modena.it>]
4179 *) New '-newreq-nodes' command option to CA.pl. This is like
4180 '-newreq', but calls 'openssl req' with the '-nodes' option
4181 so that the resulting key is not encrypted.
4182 [Damien Miller <djm@mindrot.org>]
4184 *) New configuration for the GNU Hurd.
4185 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4187 *) Initial code to implement OCSP basic response verify. This
4188 is currently incomplete. Currently just finds the signer's
4189 certificate and verifies the signature on the response.
4192 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4193 value of OPENSSLDIR. This is available via the new '-d' option
4194 to 'openssl version', and is also included in 'openssl version -a'.
4197 *) Allowing defining memory allocation callbacks that will be given
4198 file name and line number information in additional arguments
4199 (a const char* and an int). The basic functionality remains, as
4200 well as the original possibility to just replace malloc(),
4201 realloc() and free() by functions that do not know about these
4202 additional arguments. To register and find out the current
4203 settings for extended allocation functions, the following
4204 functions are provided:
4206 CRYPTO_set_mem_ex_functions
4207 CRYPTO_set_locked_mem_ex_functions
4208 CRYPTO_get_mem_ex_functions
4209 CRYPTO_get_locked_mem_ex_functions
4211 These work the same way as CRYPTO_set_mem_functions and friends.
4212 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4213 extended allocation function is enabled.
4214 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4215 a conventional allocation function is enabled.
4216 [Richard Levitte, Bodo Moeller]
4218 *) Finish off removing the remaining LHASH function pointer casts.
4219 There should no longer be any prototype-casting required when using
4220 the LHASH abstraction, and any casts that remain are "bugs". See
4221 the callback types and macros at the head of lhash.h for details
4222 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4225 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4226 If /dev/[u]random devices are not available or do not return enough
4227 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4229 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4230 /etc/entropy will be queried once each in this sequence, quering stops
4231 when enough entropy was collected without querying more sockets.
4234 *) Change the Unix RAND_poll() variant to be able to poll several
4235 random devices, as specified by DEVRANDOM, until a sufficient amount
4236 of data has been collected. We spend at most 10 ms on each file
4237 (select timeout) and read in non-blocking mode. DEVRANDOM now
4238 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4239 (previously it was just the string "/dev/urandom"), so on typical
4240 platforms the 10 ms delay will never occur.
4241 Also separate out the Unix variant to its own file, rand_unix.c.
4242 For VMS, there's a currently-empty rand_vms.c.
4245 *) Move OCSP client related routines to ocsp_cl.c. These
4246 provide utility functions which an application needing
4247 to issue a request to an OCSP responder and analyse the
4248 response will typically need: as opposed to those which an
4249 OCSP responder itself would need which will be added later.
4251 OCSP_request_sign() signs an OCSP request with an API similar
4252 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4253 response. OCSP_response_get1_basic() extracts basic response
4254 from response. OCSP_resp_find_status(): finds and extracts status
4255 information from an OCSP_CERTID structure (which will be created
4256 when the request structure is built). These are built from lower
4257 level functions which work on OCSP_SINGLERESP structures but
4258 wont normally be used unless the application wishes to examine
4259 extensions in the OCSP response for example.
4261 Replace nonce routines with a pair of functions.
4262 OCSP_request_add1_nonce() adds a nonce value and optionally
4263 generates a random value. OCSP_check_nonce() checks the
4264 validity of the nonce in an OCSP response.
4267 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4268 This doesn't copy the supplied OCSP_CERTID and avoids the
4269 need to free up the newly created id. Change return type
4270 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4271 This can then be used to add extensions to the request.
4272 Deleted OCSP_request_new(), since most of its functionality
4273 is now in OCSP_REQUEST_new() (and the case insensitive name
4274 clash) apart from the ability to set the request name which
4275 will be added elsewhere.
4278 *) Update OCSP API. Remove obsolete extensions argument from
4279 various functions. Extensions are now handled using the new
4280 OCSP extension code. New simple OCSP HTTP function which
4281 can be used to send requests and parse the response.
4284 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4285 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4286 uses the special reorder version of SET OF to sort the attributes
4287 and reorder them to match the encoded order. This resolves a long
4288 standing problem: a verify on a PKCS7 structure just after signing
4289 it used to fail because the attribute order did not match the
4290 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4291 it uses the received order. This is necessary to tolerate some broken
4292 software that does not order SET OF. This is handled by encoding
4293 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4294 to produce the required SET OF.
4297 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4298 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4299 files to get correct declarations of the ASN.1 item variables.
4302 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4303 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4304 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4305 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4306 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4307 ASN1_ITEM and no wrapper functions.
4310 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4311 replace the old function pointer based I/O routines. Change most of
4312 the *_d2i_bio() and *_d2i_fp() functions to use these.
4315 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4316 lines, recognice more "algorithms" that can be deselected, and make
4317 it complain about algorithm deselection that isn't recognised.
4320 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4321 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4322 to use new functions. Add NO_ASN1_OLD which can be set to remove
4323 some old style ASN1 functions: this can be used to determine if old
4324 code will still work when these eventually go away.
4327 *) New extension functions for OCSP structures, these follow the
4328 same conventions as certificates and CRLs.
4331 *) New function X509V3_add1_i2d(). This automatically encodes and
4332 adds an extension. Its behaviour can be customised with various
4333 flags to append, replace or delete. Various wrappers added for
4334 certifcates and CRLs.
4337 *) Fix to avoid calling the underlying ASN1 print routine when
4338 an extension cannot be parsed. Correct a typo in the
4339 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4342 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4343 entries for variables.
4346 *) Add functionality to apps/openssl.c for detecting locking
4347 problems: As the program is single-threaded, all we have
4348 to do is register a locking callback using an array for
4349 storing which locks are currently held by the program.
4352 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4353 SSL_get_ex_data_X509_STORE_idx(), which is used in
4354 ssl_verify_cert_chain() and thus can be called at any time
4355 during TLS/SSL handshakes so that thread-safety is essential.
4356 Unfortunately, the ex_data design is not at all suited
4357 for multi-threaded use, so it probably should be abolished.
4360 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4361 [Broadcom, tweaked and integrated by Geoff Thorpe]
4363 *) Move common extension printing code to new function
4364 X509V3_print_extensions(). Reorganise OCSP print routines and
4365 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4368 *) New function X509_signature_print() to remove duplication in some
4372 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4373 set (this was treated exactly the same as SET OF previously). This
4374 is used to reorder the STACK representing the structure to match the
4375 encoding. This will be used to get round a problem where a PKCS7
4376 structure which was signed could not be verified because the STACK
4377 order did not reflect the encoded order.
4380 *) Reimplement the OCSP ASN1 module using the new code.
4383 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4384 for its ASN1 operations. The old style function pointers still exist
4385 for now but they will eventually go away.
4388 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4389 completely replaces the old ASN1 functionality with a table driven
4390 encoder and decoder which interprets an ASN1_ITEM structure describing
4391 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4392 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4393 has also been converted to the new form.
4396 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4397 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4398 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4399 for negative moduli.
4402 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4403 of not touching the result's sign bit.
4406 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4410 *) Changed the LHASH code to use prototypes for callbacks, and created
4411 macros to declare and implement thin (optionally static) functions
4412 that provide type-safety and avoid function pointer casting for the
4413 type-specific callbacks.
4416 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4418 [Veers Staats <staatsvr@asc.hpc.mil>,
4419 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4421 *) Reformat the FAQ so the different questions and answers can be divided
4422 in sections depending on the subject.
4425 *) Have the zlib compression code load ZLIB.DLL dynamically under
4429 *) New function BN_mod_sqrt for computing square roots modulo a prime
4430 (using the probabilistic Tonelli-Shanks algorithm unless
4431 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4432 be handled deterministically).
4433 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4435 *) Make BN_mod_inverse faster by explicitly handling small quotients
4436 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4437 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4440 *) New function BN_kronecker.
4443 *) Fix BN_gcd so that it works on negative inputs; the result is
4444 positive unless both parameters are zero.
4445 Previously something reasonably close to an infinite loop was
4446 possible because numbers could be growing instead of shrinking
4447 in the implementation of Euclid's algorithm.
4450 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4451 sign of the number in question.
4453 Fix BN_is_word(a,w) to work correctly for w == 0.
4455 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4456 because its test if the absolute value of 'a' equals 'w'.
4457 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4458 it exists mostly for use in the implementations of BN_is_zero(),
4459 BN_is_one(), and BN_is_word().
4462 *) New function BN_swap.
4465 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4466 the exponentiation functions are more likely to produce reasonable
4467 results on negative inputs.
4470 *) Change BN_mod_mul so that the result is always non-negative.
4471 Previously, it could be negative if one of the factors was negative;
4472 I don't think anyone really wanted that behaviour.
4475 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4476 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4477 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4478 and add new functions:
4487 BN_mod_lshift1_quick
4491 These functions always generate non-negative results.
4493 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4494 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4496 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4497 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4498 be reduced modulo m.
4499 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4502 The following entry accidentily appeared in the CHANGES file
4503 distributed with OpenSSL 0.9.7. The modifications described in
4504 it do *not* apply to OpenSSL 0.9.7.
4506 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4507 was actually never needed) and in BN_mul(). The removal in BN_mul()
4508 required a small change in bn_mul_part_recursive() and the addition
4509 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4510 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4511 bn_sub_words() and bn_add_words() except they take arrays with
4516 *) In 'openssl passwd', verify passwords read from the terminal
4517 unless the '-salt' option is used (which usually means that
4518 verification would just waste user's time since the resulting
4519 hash is going to be compared with some given password hash)
4520 or the new '-noverify' option is used.
4522 This is an incompatible change, but it does not affect
4523 non-interactive use of 'openssl passwd' (passwords on the command
4524 line, '-stdin' option, '-in ...' option) and thus should not
4528 *) Remove all references to RSAref, since there's no more need for it.
4531 *) Make DSO load along a path given through an environment variable
4532 (SHLIB_PATH) with shl_load().
4535 *) Constify the ENGINE code as a result of BIGNUM constification.
4536 Also constify the RSA code and most things related to it. In a
4537 few places, most notable in the depth of the ASN.1 code, ugly
4538 casts back to non-const were required (to be solved at a later
4542 *) Make it so the openssl application has all engines loaded by default.
4545 *) Constify the BIGNUM routines a little more.
4548 *) Add the following functions:
4550 ENGINE_load_cswift()
4552 ENGINE_load_atalla()
4554 ENGINE_load_builtin_engines()
4556 That way, an application can itself choose if external engines that
4557 are built-in in OpenSSL shall ever be used or not. The benefit is
4558 that applications won't have to be linked with libdl or other dso
4559 libraries unless it's really needed.
4561 Changed 'openssl engine' to load all engines on demand.
4562 Changed the engine header files to avoid the duplication of some
4563 declarations (they differed!).
4566 *) 'openssl engine' can now list capabilities.
4569 *) Better error reporting in 'openssl engine'.
4572 *) Never call load_dh_param(NULL) in s_server.
4575 *) Add engine application. It can currently list engines by name and
4576 identity, and test if they are actually available.
4579 *) Improve RPM specification file by forcing symbolic linking and making
4580 sure the installed documentation is also owned by root.root.
4581 [Damien Miller <djm@mindrot.org>]
4583 *) Give the OpenSSL applications more possibilities to make use of
4584 keys (public as well as private) handled by engines.
4587 *) Add OCSP code that comes from CertCo.
4590 *) Add VMS support for the Rijndael code.
4593 *) Added untested support for Nuron crypto accelerator.
4596 *) Add support for external cryptographic devices. This code was
4597 previously distributed separately as the "engine" branch.
4598 [Geoff Thorpe, Richard Levitte]
4600 *) Rework the filename-translation in the DSO code. It is now possible to
4601 have far greater control over how a "name" is turned into a filename
4602 depending on the operating environment and any oddities about the
4603 different shared library filenames on each system.
4606 *) Support threads on FreeBSD-elf in Configure.
4609 *) Fix for SHA1 assembly problem with MASM: it produces
4610 warnings about corrupt line number information when assembling
4611 with debugging information. This is caused by the overlapping
4613 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4616 NCONF_get_number() has no error checking at all. As a replacement,
4617 NCONF_get_number_e() is defined (_e for "error checking") and is
4618 promoted strongly. The old NCONF_get_number is kept around for
4619 binary backward compatibility.
4620 Make it possible for methods to load from something other than a BIO,
4621 by providing a function pointer that is given a name instead of a BIO.
4622 For example, this could be used to load configuration data from an
4626 *) Fix for non blocking accept BIOs. Added new I/O special reason
4627 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4628 with non blocking I/O was not possible because no retry code was
4629 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4633 *) Added the beginnings of Rijndael support.
4636 *) Fix for bug in DirectoryString mask setting. Add support for
4637 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4638 to allow certificate printing to more controllable, additional
4639 'certopt' option to 'x509' to allow new printing options to be
4643 *) Clean old EAY MD5 hack from e_os.h.
4646 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4648 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4649 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4650 [Joe Orton, Steve Henson]
4652 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4654 *) Fix additional bug revealed by the NISCC test suite:
4656 Stop bug triggering large recursion when presented with
4657 certain ASN.1 tags (CVE-2003-0851)
4660 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4662 *) Fix various bugs revealed by running the NISCC test suite:
4664 Stop out of bounds reads in the ASN1 code when presented with
4665 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4667 If verify callback ignores invalid public key errors don't try to check
4668 certificate signature with the NULL public key.
4672 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4673 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4677 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4678 extra data after the compression methods not only for TLS 1.0
4679 but also for SSL 3.0 (as required by the specification).
4680 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4682 *) Change X509_certificate_type() to mark the key as exported/exportable
4683 when it's 512 *bits* long, not 512 bytes.
4686 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4688 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4689 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4690 a protocol version number mismatch like a decryption error
4691 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4694 *) Turn on RSA blinding by default in the default implementation
4695 to avoid a timing attack. Applications that don't want it can call
4696 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4697 They would be ill-advised to do so in most cases.
4698 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4700 *) Change RSA blinding code so that it works when the PRNG is not
4701 seeded (in this case, the secret RSA exponent is abused as
4702 an unpredictable seed -- if it is not unpredictable, there
4703 is no point in blinding anyway). Make RSA blinding thread-safe
4704 by remembering the creator's thread ID in rsa->blinding and
4705 having all other threads use local one-time blinding factors
4706 (this requires more computation than sharing rsa->blinding, but
4707 avoids excessive locking; and if an RSA object is not shared
4708 between threads, blinding will still be very fast).
4711 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4713 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4714 via timing by performing a MAC computation even if incorrrect
4715 block cipher padding has been found. This is a countermeasure
4716 against active attacks where the attacker has to distinguish
4717 between bad padding and a MAC verification error. (CVE-2003-0078)
4719 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4720 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4721 Martin Vuagnoux (EPFL, Ilion)]
4723 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4725 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4726 memory from it's contents. This is done with a counter that will
4727 place alternating values in each byte. This can be used to solve
4728 two issues: 1) the removal of calls to memset() by highly optimizing
4729 compilers, and 2) cleansing with other values than 0, since those can
4730 be read through on certain media, for example a swap space on disk.
4733 *) Bugfix: client side session caching did not work with external caching,
4734 because the session->cipher setting was not restored when reloading
4735 from the external cache. This problem was masked, when
4736 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4737 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4740 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4741 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4742 [Zeev Lieber <zeev-l@yahoo.com>]
4744 *) Undo an undocumented change introduced in 0.9.6e which caused
4745 repeated calls to OpenSSL_add_all_ciphers() and
4746 OpenSSL_add_all_digests() to be ignored, even after calling
4750 *) Change the default configuration reader to deal with last line not
4751 being properly terminated.
4754 *) Change X509_NAME_cmp() so it applies the special rules on handling
4755 DN values that are of type PrintableString, as well as RDNs of type
4756 emailAddress where the value has the type ia5String.
4757 [stefank@valicert.com via Richard Levitte]
4759 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4760 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4761 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4762 the bitwise-OR of the two for use by the majority of applications
4763 wanting this behaviour, and update the docs. The documented
4764 behaviour and actual behaviour were inconsistent and had been
4765 changing anyway, so this is more a bug-fix than a behavioural
4767 [Geoff Thorpe, diagnosed by Nadav Har'El]
4769 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4770 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4773 *) Fix initialization code race conditions in
4774 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4775 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4776 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4777 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4778 ssl2_get_cipher_by_char(),
4779 ssl3_get_cipher_by_char().
4780 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4782 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4783 the cached sessions are flushed, as the remove_cb() might use ex_data
4784 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4785 (see [openssl.org #212]).
4786 [Geoff Thorpe, Lutz Jaenicke]
4788 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4789 length, instead of the encoding length to d2i_ASN1_OBJECT.
4792 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4794 *) [In 0.9.6g-engine release:]
4795 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4796 [Lynn Gazis <lgazis@rainbow.com>]
4798 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4800 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4801 and get fix the header length calculation.
4802 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4803 Alon Kantor <alonk@checkpoint.com> (and others),
4806 *) Use proper error handling instead of 'assertions' in buffer
4807 overflow checks added in 0.9.6e. This prevents DoS (the
4808 assertions could call abort()).
4809 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4811 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4813 *) Add various sanity checks to asn1_get_length() to reject
4814 the ASN1 length bytes if they exceed sizeof(long), will appear
4815 negative or the content length exceeds the length of the
4817 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4819 *) Fix cipher selection routines: ciphers without encryption had no flags
4820 for the cipher strength set and where therefore not handled correctly
4821 by the selection routines (PR #130).
4824 *) Fix EVP_dsa_sha macro.
4828 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4829 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4830 that was added in OpenSSL 0.9.6d.
4832 As the countermeasure turned out to be incompatible with some
4833 broken SSL implementations, the new option is part of SSL_OP_ALL.
4834 SSL_OP_ALL is usually employed when compatibility with weird SSL
4835 implementations is desired (e.g. '-bugs' option to 's_client' and
4836 's_server'), so the new option is automatically set in many
4840 *) Changes in security patch:
4842 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4843 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4844 Air Force Materiel Command, USAF, under agreement number
4847 *) Add various sanity checks to asn1_get_length() to reject
4848 the ASN1 length bytes if they exceed sizeof(long), will appear
4849 negative or the content length exceeds the length of the
4850 supplied buffer. (CVE-2002-0659)
4851 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4853 *) Assertions for various potential buffer overflows, not known to
4855 [Ben Laurie (CHATS)]
4857 *) Various temporary buffers to hold ASCII versions of integers were
4858 too small for 64 bit platforms. (CVE-2002-0655)
4859 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4861 *) Remote buffer overflow in SSL3 protocol - an attacker could
4862 supply an oversized session ID to a client. (CVE-2002-0656)
4863 [Ben Laurie (CHATS)]
4865 *) Remote buffer overflow in SSL2 protocol - an attacker could
4866 supply an oversized client master key. (CVE-2002-0656)
4867 [Ben Laurie (CHATS)]
4869 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4871 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4872 encoded as NULL) with id-dsa-with-sha1.
4873 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4875 *) Check various X509_...() return values in apps/req.c.
4876 [Nils Larsch <nla@trustcenter.de>]
4878 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4879 an end-of-file condition would erronously be flagged, when the CRLF
4880 was just at the end of a processed block. The bug was discovered when
4881 processing data through a buffering memory BIO handing the data to a
4882 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4883 <ptsekov@syntrex.com> and Nedelcho Stanev.
4886 *) Implement a countermeasure against a vulnerability recently found
4887 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4888 before application data chunks to avoid the use of known IVs
4889 with data potentially chosen by the attacker.
4892 *) Fix length checks in ssl3_get_client_hello().
4895 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4896 to prevent ssl3_read_internal() from incorrectly assuming that
4897 ssl3_read_bytes() found application data while handshake
4898 processing was enabled when in fact s->s3->in_read_app_data was
4899 merely automatically cleared during the initial handshake.
4900 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4902 *) Fix object definitions for Private and Enterprise: they were not
4903 recognized in their shortname (=lowercase) representation. Extend
4904 obj_dat.pl to issue an error when using undefined keywords instead
4905 of silently ignoring the problem (Svenning Sorensen
4906 <sss@sss.dnsalias.net>).
4909 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4910 generators, i.e. generators other than 2 and 5. (Previously, the
4911 code did not properly initialise the 'add' and 'rem' values to
4912 BN_generate_prime().)
4914 In the new general case, we do not insist that 'generator' is
4915 actually a primitive root: This requirement is rather pointless;
4916 a generator of the order-q subgroup is just as good, if not
4920 *) Map new X509 verification errors to alerts. Discovered and submitted by
4921 Tom Wu <tom@arcot.com>.
4924 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4925 returning non-zero before the data has been completely received
4926 when using non-blocking I/O.
4927 [Bodo Moeller; problem pointed out by John Hughes]
4929 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4930 [Ben Laurie, Lutz Jaenicke]
4932 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4933 Yoram Zahavi <YoramZ@gilian.com>).
4936 *) Add information about CygWin 1.3 and on, and preserve proper
4937 configuration for the versions before that.
4938 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4940 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4941 check whether we deal with a copy of a session and do not delete from
4942 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4943 <izhar@checkpoint.com>.
4946 *) Do not store session data into the internal session cache, if it
4947 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4948 flag is set). Proposed by Aslam <aslam@funk.com>.
4951 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4955 *) [In 0.9.6d-engine release:]
4956 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4957 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4959 *) Add the configuration target linux-s390x.
4960 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4962 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4963 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4964 variable as an indication that a ClientHello message has been
4965 received. As the flag value will be lost between multiple
4966 invocations of ssl3_accept when using non-blocking I/O, the
4967 function may not be aware that a handshake has actually taken
4968 place, thus preventing a new session from being added to the
4971 To avoid this problem, we now set s->new_session to 2 instead of
4972 using a local variable.
4973 [Lutz Jaenicke, Bodo Moeller]
4975 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4976 if the SSL_R_LENGTH_MISMATCH error is detected.
4977 [Geoff Thorpe, Bodo Moeller]
4979 *) New 'shared_ldflag' column in Configure platform table.
4982 *) Fix EVP_CIPHER_mode macro.
4983 ["Dan S. Camper" <dan@bti.net>]
4985 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4986 type, we must throw them away by setting rr->length to 0.
4987 [D P Chang <dpc@qualys.com>]
4989 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4991 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4992 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4993 worked incorrectly for those cases where range = 10..._2 and
4994 3*range is two bits longer than range.)
4997 *) Only add signing time to PKCS7 structures if it is not already
5001 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5002 OBJ_ld_ce should be OBJ_id_ce.
5003 Also some ip-pda OIDs in crypto/objects/objects.txt were
5004 incorrect (cf. RFC 3039).
5005 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5007 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5008 returns early because it has nothing to do.
5009 [Andy Schneider <andy.schneider@bjss.co.uk>]
5011 *) [In 0.9.6c-engine release:]
5012 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5013 [Andy Schneider <andy.schneider@bjss.co.uk>]
5015 *) [In 0.9.6c-engine release:]
5016 Add support for Cryptographic Appliance's keyserver technology.
5017 (Use engine 'keyclient')
5018 [Cryptographic Appliances and Geoff Thorpe]
5020 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5021 is called via tools/c89.sh because arguments have to be
5022 rearranged (all '-L' options must appear before the first object
5024 [Richard Shapiro <rshapiro@abinitio.com>]
5026 *) [In 0.9.6c-engine release:]
5027 Add support for Broadcom crypto accelerator cards, backported
5029 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5031 *) [In 0.9.6c-engine release:]
5032 Add support for SureWare crypto accelerator cards from
5033 Baltimore Technologies. (Use engine 'sureware')
5034 [Baltimore Technologies and Mark Cox]
5036 *) [In 0.9.6c-engine release:]
5037 Add support for crypto accelerator cards from Accelerated
5038 Encryption Processing, www.aep.ie. (Use engine 'aep')
5039 [AEP Inc. and Mark Cox]
5041 *) Add a configuration entry for gcc on UnixWare.
5042 [Gary Benson <gbenson@redhat.com>]
5044 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5045 messages are stored in a single piece (fixed-length part and
5046 variable-length part combined) and fix various bugs found on the way.
5049 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5050 instead. BIO_gethostbyname() does not know what timeouts are
5051 appropriate, so entries would stay in cache even when they have
5053 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5055 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5056 faced with a pathologically small ClientHello fragment that does
5057 not contain client_version: Instead of aborting with an error,
5058 simply choose the highest available protocol version (i.e.,
5059 TLS 1.0 unless it is disabled). In practice, ClientHello
5060 messages are never sent like this, but this change gives us
5061 strictly correct behaviour at least for TLS.
5064 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5065 never resets s->method to s->ctx->method when called from within
5066 one of the SSL handshake functions.
5067 [Bodo Moeller; problem pointed out by Niko Baric]
5069 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5070 (sent using the client's version number) if client_version is
5071 smaller than the protocol version in use. Also change
5072 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5073 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5074 the client will at least see that alert.
5077 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5081 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5082 client receives HelloRequest while in a handshake.
5083 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5085 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5086 should end in 'break', not 'goto end' which circuments various
5087 cleanups done in state SSL_ST_OK. But session related stuff
5088 must be disabled for SSL_ST_OK in the case that we just sent a
5091 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5092 before just sending a HelloRequest.
5093 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5095 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5096 reveal whether illegal block cipher padding was found or a MAC
5097 verification error occured. (Neither SSLerr() codes nor alerts
5098 are directly visible to potential attackers, but the information
5099 may leak via logfiles.)
5101 Similar changes are not required for the SSL 2.0 implementation
5102 because the number of padding bytes is sent in clear for SSL 2.0,
5103 and the extra bytes are just ignored. However ssl/s2_pkt.c
5104 failed to verify that the purported number of padding bytes is in
5108 *) Add OpenUNIX-8 support including shared libraries
5109 (Boyd Lynn Gerber <gerberb@zenez.com>).
5112 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5113 'wristwatch attack' using huge encoding parameters (cf.
5114 James H. Manger's CRYPTO 2001 paper). Note that the
5115 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5116 encoding parameters and hence was not vulnerable.
5119 *) BN_sqr() bug fix.
5120 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5122 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5123 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5124 followed by modular reduction.
5125 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5127 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5128 equivalent based on BN_pseudo_rand() instead of BN_rand().
5131 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5132 This function was broken, as the check for a new client hello message
5133 to handle SGC did not allow these large messages.
5134 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5137 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5140 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5141 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5144 *) Rework the configuration and shared library support for Tru64 Unix.
5145 The configuration part makes use of modern compiler features and
5146 still retains old compiler behavior for those that run older versions
5147 of the OS. The shared library support part includes a variant that
5148 uses the RPATH feature, and is available through the special
5149 configuration target "alpha-cc-rpath", which will never be selected
5151 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5153 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5154 with the same message size as in ssl3_get_certificate_request().
5155 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5156 messages might inadvertently be reject as too long.
5157 [Petr Lampa <lampa@fee.vutbr.cz>]
5159 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5162 *) Modified SSL library such that the verify_callback that has been set
5163 specificly for an SSL object with SSL_set_verify() is actually being
5164 used. Before the change, a verify_callback set with this function was
5165 ignored and the verify_callback() set in the SSL_CTX at the time of
5166 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5167 to allow the necessary settings.
5170 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5171 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5172 done automatically (in contradiction to the requirements of the C
5173 standard). This made problems when used from OpenSSH.
5176 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5177 dh->length and always used
5179 BN_rand_range(priv_key, dh->p).
5181 BN_rand_range() is not necessary for Diffie-Hellman, and this
5182 specific range makes Diffie-Hellman unnecessarily inefficient if
5183 dh->length (recommended exponent length) is much smaller than the
5184 length of dh->p. We could use BN_rand_range() if the order of
5185 the subgroup was stored in the DH structure, but we only have
5190 BN_rand(priv_key, l, ...)
5192 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5198 RSA_eay_public_encrypt
5199 RSA_eay_private_decrypt
5200 RSA_eay_private_encrypt (signing)
5201 RSA_eay_public_decrypt (signature verification)
5203 (default implementations for RSA_public_encrypt,
5204 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5205 always reject numbers >= n.
5208 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5209 to synchronize access to 'locking_thread'. This is necessary on
5210 systems where access to 'locking_thread' (an 'unsigned long'
5211 variable) is not atomic.
5214 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5215 *before* setting the 'crypto_lock_rand' flag. The previous code had
5216 a race condition if 0 is a valid thread ID.
5217 [Travis Vitek <vitek@roguewave.com>]
5219 *) Add support for shared libraries under Irix.
5220 [Albert Chin-A-Young <china@thewrittenword.com>]
5222 *) Add configuration option to build on Linux on both big-endian and
5224 [Ralf Baechle <ralf@uni-koblenz.de>]
5226 *) Add the possibility to create shared libraries on HP-UX.
5229 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5231 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5232 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5233 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5234 PRNG state recovery was possible based on the output of
5235 one PRNG request appropriately sized to gain knowledge on
5236 'md' followed by enough consecutive 1-byte PRNG requests
5237 to traverse all of 'state'.
5239 1. When updating 'md_local' (the current thread's copy of 'md')
5240 during PRNG output generation, hash all of the previous
5241 'md_local' value, not just the half used for PRNG output.
5243 2. Make the number of bytes from 'state' included into the hash
5244 independent from the number of PRNG bytes requested.
5246 The first measure alone would be sufficient to avoid
5247 Markku-Juhani's attack. (Actually it had never occurred
5248 to me that the half of 'md_local' used for chaining was the
5249 half from which PRNG output bytes were taken -- I had always
5250 assumed that the secret half would be used.) The second
5251 measure makes sure that additional data from 'state' is never
5252 mixed into 'md_local' in small portions; this heuristically
5253 further strengthens the PRNG.
5256 *) Fix crypto/bn/asm/mips3.s.
5259 *) When only the key is given to "enc", the IV is undefined. Print out
5260 an error message in this case.
5263 *) Handle special case when X509_NAME is empty in X509 printing routines.
5266 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5267 positive and less than q.
5270 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5271 used: it isn't thread safe and the add_lock_callback should handle
5273 [Paul Rose <Paul.Rose@bridge.com>]
5275 *) Verify that incoming data obeys the block size in
5276 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5280 [Ulf Möller, Bodo Möller]
5282 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5283 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5284 when fixing the server behaviour for backwards-compatible 'client
5285 hello' messages. (Note that the attack is impractical against
5286 SSL 3.0 and TLS 1.0 anyway because length and version checking
5287 means that the probability of guessing a valid ciphertext is
5288 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5291 Before 0.9.5, the countermeasure (hide the error by generating a
5292 random 'decryption result') did not work properly because
5293 ERR_clear_error() was missing, meaning that SSL_get_error() would
5294 detect the supposedly ignored error.
5296 Both problems are now fixed.
5299 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5300 (previously it was 1024).
5303 *) Fix for compatibility mode trust settings: ignore trust settings
5304 unless some valid trust or reject settings are present.
5307 *) Fix for blowfish EVP: its a variable length cipher.
5310 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5311 parameters in DSA public key structures and return an error in the
5312 DSA routines if parameters are absent.
5315 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5316 in the current directory if neither $RANDFILE nor $HOME was set.
5317 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5318 caused some confusion to Windows users who haven't defined $HOME.
5319 Thus RAND_file_name() is changed again: e_os.h can define a
5320 DEFAULT_HOME, which will be used if $HOME is not set.
5321 For Windows, we use "C:"; on other platforms, we still require
5322 environment variables.
5324 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5325 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5326 having multiple threads call RAND_poll() concurrently.
5329 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5330 combination of a flag and a thread ID variable.
5331 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5332 flag), *other* threads can enter ssleay_add_bytes without obeying
5333 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5334 that they do not hold after the first thread unsets add_do_not_lock).
5337 *) Change bctest again: '-x' expressions are not available in all
5341 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5343 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5344 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5346 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5347 the default extension for executables, if any. Also, make the perl
5348 scripts that use symlink() to test if it really exists and use "cp"
5349 if it doesn't. All this made OpenSSL compilable and installable in
5353 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5354 If SEQUENCE is length is indefinite just set c->slen to the total
5355 amount of data available.
5356 [Steve Henson, reported by shige@FreeBSD.org]
5357 [This change does not apply to 0.9.7.]
5359 *) Change bctest to avoid here-documents inside command substitution
5360 (workaround for FreeBSD /bin/sh bug).
5361 For compatibility with Ultrix, avoid shell functions (introduced
5362 in the bctest version that searches along $PATH).
5365 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5366 with des_encrypt() defined on some operating systems, like Solaris
5370 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5371 On the Importance of Eliminating Errors in Cryptographic
5372 Computations, J. Cryptology 14 (2001) 2, 101-119,
5373 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5376 *) MIPS assembler BIGNUM division bug fix.
5379 *) Disabled incorrect Alpha assembler code.
5382 *) Fix PKCS#7 decode routines so they correctly update the length
5383 after reading an EOC for the EXPLICIT tag.
5385 [This change does not apply to 0.9.7.]
5387 *) Fix bug in PKCS#12 key generation routines. This was triggered
5388 if a 3DES key was generated with a 0 initial byte. Include
5389 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5390 (but broken) behaviour.
5393 *) Enhance bctest to search for a working bc along $PATH and print
5395 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5397 *) Fix memory leaks in err.c: free err_data string if necessary;
5398 don't write to the wrong index in ERR_set_error_data.
5401 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5405 *) Replace rdtsc with _emit statements for VC++ version 5.
5406 [Jeremy Cooper <jeremy@baymoo.org>]
5408 *) Make it possible to reuse SSLv2 sessions.
5411 *) In copy_email() check for >= 0 as a return value for
5412 X509_NAME_get_index_by_NID() since 0 is a valid index.
5413 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5415 *) Avoid coredump with unsupported or invalid public keys by checking if
5416 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5417 PKCS7_verify() fails with non detached data.
5420 *) Don't use getenv in library functions when run as setuid/setgid.
5421 New function OPENSSL_issetugid().
5424 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5425 due to incorrect handling of multi-threading:
5427 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5429 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5431 3. Count how many times MemCheck_off() has been called so that
5432 nested use can be treated correctly. This also avoids
5433 inband-signalling in the previous code (which relied on the
5434 assumption that thread ID 0 is impossible).
5437 *) Add "-rand" option also to s_client and s_server.
5440 *) Fix CPU detection on Irix 6.x.
5441 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5442 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5444 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5447 [This change does not apply to 0.9.7.]
5449 *) Use the cached encoding of an X509_NAME structure rather than
5450 copying it. This is apparently the reason for the libsafe "errors"
5451 but the code is actually correct.
5454 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5455 Bleichenbacher's DSA attack.
5456 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5457 to be set and top=0 forces the highest bit to be set; top=-1 is new
5458 and leaves the highest bit random.
5459 [Ulf Moeller, Bodo Moeller]
5461 *) In the NCONF_...-based implementations for CONF_... queries
5462 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5463 a temporary CONF structure with the data component set to NULL
5464 (which gives segmentation faults in lh_retrieve).
5465 Instead, use NULL for the CONF pointer in CONF_get_string and
5466 CONF_get_number (which may use environment variables) and directly
5467 return NULL from CONF_get_section.
5470 *) Fix potential buffer overrun for EBCDIC.
5473 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5474 keyUsage if basicConstraints absent for a CA.
5477 *) Make SMIME_write_PKCS7() write mail header values with a format that
5478 is more generally accepted (no spaces before the semicolon), since
5479 some programs can't parse those values properly otherwise. Also make
5480 sure BIO's that break lines after each write do not create invalid
5484 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5485 macros previously used would not encode an empty SEQUENCE OF
5486 and break the signature.
5488 [This change does not apply to 0.9.7.]
5490 *) Zero the premaster secret after deriving the master secret in
5494 *) Add some EVP_add_digest_alias registrations (as found in
5495 OpenSSL_add_all_digests()) to SSL_library_init()
5496 aka OpenSSL_add_ssl_algorithms(). This provides improved
5497 compatibility with peers using X.509 certificates
5498 with unconventional AlgorithmIdentifier OIDs.
5501 *) Fix for Irix with NO_ASM.
5502 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5504 *) ./config script fixes.
5505 [Ulf Moeller, Richard Levitte]
5507 *) Fix 'openssl passwd -1'.
5510 *) Change PKCS12_key_gen_asc() so it can cope with non null
5511 terminated strings whose length is passed in the passlen
5512 parameter, for example from PEM callbacks. This was done
5513 by adding an extra length parameter to asc2uni().
5514 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5516 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5517 call failed, free the DSA structure.
5520 *) Fix to uni2asc() to cope with zero length Unicode strings.
5521 These are present in some PKCS#12 files.
5524 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5525 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5526 when writing a 32767 byte record.
5527 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5529 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5530 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5532 (RSA objects have a reference count access to which is protected
5533 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5534 so they are meant to be shared between threads.)
5535 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5536 "Reddie, Steven" <Steven.Reddie@ca.com>]
5538 *) Fix a deadlock in CRYPTO_mem_leaks().
5541 *) Use better test patterns in bntest.
5544 *) rand_win.c fix for Borland C.
5547 *) BN_rshift bugfix for n == 0.
5550 *) Add a 'bctest' script that checks for some known 'bc' bugs
5551 so that 'make test' does not abort just because 'bc' is broken.
5554 *) Store verify_result within SSL_SESSION also for client side to
5555 avoid potential security hole. (Re-used sessions on the client side
5556 always resulted in verify_result==X509_V_OK, not using the original
5557 result of the server certificate verification.)
5560 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5561 SSL3_RT_APPLICATION_DATA, return 0.
5562 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5566 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5567 releases, have been re-implemented by renaming the previous
5568 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5569 and ssl3_read_internal, respectively, and adding 'peek' parameters
5570 to them. The new ssl[23]_{read,peek} functions are calls to
5571 ssl[23]_read_internal with the 'peek' flag set appropriately.
5572 A 'peek' parameter has also been added to ssl3_read_bytes, which
5573 does the actual work for ssl3_read_internal.
5576 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5577 the method-specific "init()" handler. Also clean up ex_data after
5578 calling the method-specific "finish()" handler. Previously, this was
5579 happening the other way round.
5582 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5583 The previous value, 12, was not always sufficient for BN_mod_exp().
5586 *) Make sure that shared libraries get the internal name engine with
5587 the full version number and not just 0. This should mark the
5588 shared libraries as not backward compatible. Of course, this should
5589 be changed again when we can guarantee backward binary compatibility.
5592 *) Fix typo in get_cert_by_subject() in by_dir.c
5593 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5595 *) Rework the system to generate shared libraries:
5597 - Make note of the expected extension for the shared libraries and
5598 if there is a need for symbolic links from for example libcrypto.so.0
5599 to libcrypto.so.0.9.7. There is extended info in Configure for
5602 - Make as few rebuilds of the shared libraries as possible.
5604 - Still avoid linking the OpenSSL programs with the shared libraries.
5606 - When installing, install the shared libraries separately from the
5610 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5612 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5613 and not in SSL_clear because the latter is also used by the
5614 accept/connect functions; previously, the settings made by
5615 SSL_set_read_ahead would be lost during the handshake.
5616 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5618 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5619 Previously, it would create entries for disableed algorithms no
5623 *) Added several new manual pages for SSL_* function.
5626 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5628 *) In ssl23_get_client_hello, generate an error message when faced
5629 with an initial SSL 3.0/TLS record that is too small to contain the
5630 first two bytes of the ClientHello message, i.e. client_version.
5631 (Note that this is a pathologic case that probably has never happened
5632 in real life.) The previous approach was to use the version number
5633 from the record header as a substitute; but our protocol choice
5634 should not depend on that one because it is not authenticated
5635 by the Finished messages.
5638 *) More robust randomness gathering functions for Windows.
5639 [Jeffrey Altman <jaltman@columbia.edu>]
5641 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5642 not set then we don't setup the error code for issuer check errors
5643 to avoid possibly overwriting other errors which the callback does
5644 handle. If an application does set the flag then we assume it knows
5645 what it is doing and can handle the new informational codes
5649 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5650 a general "ANY" type, as such it should be able to decode anything
5651 including tagged types. However it didn't check the class so it would
5652 wrongly interpret tagged types in the same way as their universal
5653 counterpart and unknown types were just rejected. Changed so that the
5654 tagged and unknown types are handled in the same way as a SEQUENCE:
5655 that is the encoding is stored intact. There is also a new type
5656 "V_ASN1_OTHER" which is used when the class is not universal, in this
5657 case we have no idea what the actual type is so we just lump them all
5661 *) On VMS, stdout may very well lead to a file that is written to
5662 in a record-oriented fashion. That means that every write() will
5663 write a separate record, which will be read separately by the
5664 programs trying to read from it. This can be very confusing.
5666 The solution is to put a BIO filter in the way that will buffer
5667 text until a linefeed is reached, and then write everything a
5668 line at a time, so every record written will be an actual line,
5669 not chunks of lines and not (usually doesn't happen, but I've
5670 seen it once) several lines in one record. BIO_f_linebuffer() is
5673 Currently, it's a VMS-only method, because that's where it has
5674 been tested well enough.
5677 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5678 it can return incorrect results.
5679 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5680 but it was in 0.9.6-beta[12].)
5683 *) Disable the check for content being present when verifying detached
5684 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5685 include zero length content when signing messages.
5688 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5689 BIO_ctrl (for BIO pairs).
5692 *) Add DSO method for VMS.
5695 *) Bug fix: Montgomery multiplication could produce results with the
5699 *) Add RPM specification openssl.spec and modify it to build three
5700 packages. The default package contains applications, application
5701 documentation and run-time libraries. The devel package contains
5702 include files, static libraries and function documentation. The
5703 doc package contains the contents of the doc directory. The original
5704 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5707 *) Add a large number of documentation files for many SSL routines.
5708 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5710 *) Add a configuration entry for Sony News 4.
5711 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5713 *) Don't set the two most significant bits to one when generating a
5714 random number < q in the DSA library.
5717 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5718 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5719 the underlying transport is blocking) if a handshake took place.
5720 (The default behaviour is needed by applications such as s_client
5721 and s_server that use select() to determine when to use SSL_read;
5722 but for applications that know in advance when to expect data, it
5723 just makes things more complicated.)
5726 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5730 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5731 work better on such systems.
5732 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5734 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5735 Update PKCS12_parse() so it copies the friendlyName and the
5736 keyid to the certificates aux info.
5739 *) Fix bug in PKCS7_verify() which caused an infinite loop
5740 if there was more than one signature.
5741 [Sven Uszpelkat <su@celocom.de>]
5743 *) Major change in util/mkdef.pl to include extra information
5744 about each symbol, as well as presentig variables as well
5745 as functions. This change means that there's n more need
5746 to rebuild the .num files when some algorithms are excluded.
5749 *) Allow the verify time to be set by an application,
5750 rather than always using the current time.
5753 *) Phase 2 verify code reorganisation. The certificate
5754 verify code now looks up an issuer certificate by a
5755 number of criteria: subject name, authority key id
5756 and key usage. It also verifies self signed certificates
5757 by the same criteria. The main comparison function is
5758 X509_check_issued() which performs these checks.
5760 Lot of changes were necessary in order to support this
5761 without completely rewriting the lookup code.
5763 Authority and subject key identifier are now cached.
5765 The LHASH 'certs' is X509_STORE has now been replaced
5766 by a STACK_OF(X509_OBJECT). This is mainly because an
5767 LHASH can't store or retrieve multiple objects with
5768 the same hash value.
5770 As a result various functions (which were all internal
5771 use only) have changed to handle the new X509_STORE
5772 structure. This will break anything that messed round
5773 with X509_STORE internally.
5775 The functions X509_STORE_add_cert() now checks for an
5776 exact match, rather than just subject name.
5778 The X509_STORE API doesn't directly support the retrieval
5779 of multiple certificates matching a given criteria, however
5780 this can be worked round by performing a lookup first
5781 (which will fill the cache with candidate certificates)
5782 and then examining the cache for matches. This is probably
5783 the best we can do without throwing out X509_LOOKUP
5784 entirely (maybe later...).
5786 The X509_VERIFY_CTX structure has been enhanced considerably.
5788 All certificate lookup operations now go via a get_issuer()
5789 callback. Although this currently uses an X509_STORE it
5790 can be replaced by custom lookups. This is a simple way
5791 to bypass the X509_STORE hackery necessary to make this
5792 work and makes it possible to use more efficient techniques
5793 in future. A very simple version which uses a simple
5794 STACK for its trusted certificate store is also provided
5795 using X509_STORE_CTX_trusted_stack().
5797 The verify_cb() and verify() callbacks now have equivalents
5798 in the X509_STORE_CTX structure.
5800 X509_STORE_CTX also has a 'flags' field which can be used
5801 to customise the verify behaviour.
5804 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5805 excludes S/MIME capabilities.
5808 *) When a certificate request is read in keep a copy of the
5809 original encoding of the signed data and use it when outputing
5810 again. Signatures then use the original encoding rather than
5811 a decoded, encoded version which may cause problems if the
5812 request is improperly encoded.
5815 *) For consistency with other BIO_puts implementations, call
5816 buffer_write(b, ...) directly in buffer_puts instead of calling
5819 In BIO_puts, increment b->num_write as in BIO_write.
5820 [Peter.Sylvester@EdelWeb.fr]
5822 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5823 BN_zero, we may not return a BIGNUM with an array consisting of
5827 *) Avoid calling abort() from within the library when problems are
5828 detected, except if preprocessor symbols have been defined
5829 (such as REF_CHECK, BN_DEBUG etc.).
5832 *) New openssl application 'rsautl'. This utility can be
5833 used for low level RSA operations. DER public key
5834 BIO/fp routines also added.
5837 *) New Configure entry and patches for compiling on QNX 4.
5838 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5840 *) A demo state-machine implementation was sponsored by
5841 Nuron (http://www.nuron.com/) and is now available in
5842 demos/state_machine.
5845 *) New options added to the 'dgst' utility for signature
5846 generation and verification.
5849 *) Unrecognized PKCS#7 content types are now handled via a
5850 catch all ASN1_TYPE structure. This allows unsupported
5851 types to be stored as a "blob" and an application can
5852 encode and decode it manually.
5855 *) Fix various signed/unsigned issues to make a_strex.c
5857 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5859 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5860 length if passed a buffer. ASN1_INTEGER_to_BN failed
5861 if passed a NULL BN and its argument was negative.
5862 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5864 *) Modification to PKCS#7 encoding routines to output definite
5865 length encoding. Since currently the whole structures are in
5866 memory there's not real point in using indefinite length
5867 constructed encoding. However if OpenSSL is compiled with
5868 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5871 *) Added BIO_vprintf() and BIO_vsnprintf().
5874 *) Added more prefixes to parse for in the the strings written
5875 through a logging bio, to cover all the levels that are available
5876 through syslog. The prefixes are now:
5878 PANIC, EMERG, EMR => LOG_EMERG
5879 ALERT, ALR => LOG_ALERT
5880 CRIT, CRI => LOG_CRIT
5881 ERROR, ERR => LOG_ERR
5882 WARNING, WARN, WAR => LOG_WARNING
5883 NOTICE, NOTE, NOT => LOG_NOTICE
5884 INFO, INF => LOG_INFO
5885 DEBUG, DBG => LOG_DEBUG
5887 and as before, if none of those prefixes are present at the
5888 beginning of the string, LOG_ERR is chosen.
5890 On Win32, the LOG_* levels are mapped according to this:
5892 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5893 LOG_WARNING => EVENTLOG_WARNING_TYPE
5894 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5898 *) Made it possible to reconfigure with just the configuration
5899 argument "reconf" or "reconfigure". The command line arguments
5900 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5901 and are retrieved from there when reconfiguring.
5905 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5907 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5910 *) The obj_dat.pl script was messing up the sorting of object
5911 names. The reason was that it compared the quoted version
5912 of strings as a result "OCSP" > "OCSP Signing" because
5913 " > SPACE. Changed script to store unquoted versions of
5914 names and add quotes on output. It was also omitting some
5915 names from the lookup table if they were given a default
5916 value (that is if SN is missing it is given the same
5917 value as LN and vice versa), these are now added on the
5918 grounds that if an object has a name we should be able to
5919 look it up. Finally added warning output when duplicate
5920 short or long names are found.
5923 *) Changes needed for Tandem NSK.
5924 [Scott Uroff <scott@xypro.com>]
5926 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5927 RSA_padding_check_SSLv23(), special padding was never detected
5928 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5929 version rollback attacks was not effective.
5931 In s23_clnt.c, don't use special rollback-attack detection padding
5932 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5933 client; similarly, in s23_srvr.c, don't do the rollback check if
5934 SSL 2.0 is the only protocol enabled in the server.
5937 *) Make it possible to get hexdumps of unprintable data with 'openssl
5938 asn1parse'. By implication, the functions ASN1_parse_dump() and
5939 BIO_dump_indent() are added.
5942 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5943 these print out strings and name structures based on various
5944 flags including RFC2253 support and proper handling of
5945 multibyte characters. Added options to the 'x509' utility
5946 to allow the various flags to be set.
5949 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5950 Also change the functions X509_cmp_current_time() and
5951 X509_gmtime_adj() work with an ASN1_TIME structure,
5952 this will enable certificates using GeneralizedTime in validity
5953 dates to be checked.
5956 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5957 negative public key encodings) on by default,
5958 NO_NEG_PUBKEY_BUG can be set to disable it.
5961 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5962 content octets. An i2c_ASN1_OBJECT is unnecessary because
5963 the encoding can be trivially obtained from the structure.
5966 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5967 not read locks (CRYPTO_r_[un]lock).
5970 *) A first attempt at creating official support for shared
5971 libraries through configuration. I've kept it so the
5972 default is static libraries only, and the OpenSSL programs
5973 are always statically linked for now, but there are
5974 preparations for dynamic linking in place.
5975 This has been tested on Linux and Tru64.
5978 *) Randomness polling function for Win9x, as described in:
5979 Peter Gutmann, Software Generation of Practically Strong
5983 *) Fix so PRNG is seeded in req if using an already existing
5987 *) New options to smime application. -inform and -outform
5988 allow alternative formats for the S/MIME message including
5989 PEM and DER. The -content option allows the content to be
5990 specified separately. This should allow things like Netscape
5991 form signing output easier to verify.
5994 *) Fix the ASN1 encoding of tags using the 'long form'.
5997 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5998 STRING types. These convert content octets to and from the
5999 underlying type. The actual tag and length octets are
6000 already assumed to have been read in and checked. These
6001 are needed because all other string types have virtually
6002 identical handling apart from the tag. By having versions
6003 of the ASN1 functions that just operate on content octets
6004 IMPLICIT tagging can be handled properly. It also allows
6005 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6006 and ASN1_INTEGER are identical apart from the tag.
6009 *) Change the handling of OID objects as follows:
6011 - New object identifiers are inserted in objects.txt, following
6012 the syntax given in objects.README.
6013 - objects.pl is used to process obj_mac.num and create a new
6015 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6018 This is currently kind of a hack, and the perl code in objects.pl
6019 isn't very elegant, but it works as I intended. The simplest way
6020 to check that it worked correctly is to look in obj_dat.h and
6021 check the array nid_objs and make sure the objects haven't moved
6022 around (this is important!). Additions are OK, as well as
6023 consistent name changes.
6026 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6029 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6030 The given file adds to whatever has already been seeded into the
6031 random pool through the RANDFILE configuration file option or
6032 environment variable, or the default random state file.
6035 *) mkstack.pl now sorts each macro group into lexical order.
6036 Previously the output order depended on the order the files
6037 appeared in the directory, resulting in needless rewriting
6041 *) Patches to make OpenSSL compile under Win32 again. Mostly
6042 work arounds for the VC++ problem that it treats func() as
6043 func(void). Also stripped out the parts of mkdef.pl that
6044 added extra typesafe functions: these no longer exist.
6047 *) Reorganisation of the stack code. The macros are now all
6048 collected in safestack.h . Each macro is defined in terms of
6049 a "stack macro" of the form SKM_<name>(type, a, b). The
6050 DEBUG_SAFESTACK is now handled in terms of function casts,
6051 this has the advantage of retaining type safety without the
6052 use of additional functions. If DEBUG_SAFESTACK is not defined
6053 then the non typesafe macros are used instead. Also modified the
6054 mkstack.pl script to handle the new form. Needs testing to see
6055 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6056 the default if no major problems. Similar behaviour for ASN1_SET_OF
6057 and PKCS12_STACK_OF.
6060 *) When some versions of IIS use the 'NET' form of private key the
6061 key derivation algorithm is different. Normally MD5(password) is
6062 used as a 128 bit RC4 key. In the modified case
6063 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6064 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6065 as the old Netscape_RSA functions except they have an additional
6066 'sgckey' parameter which uses the modified algorithm. Also added
6067 an -sgckey command line option to the rsa utility. Thanks to
6068 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6069 algorithm to openssl-dev.
6072 *) The evp_local.h macros were using 'c.##kname' which resulted in
6073 invalid expansion on some systems (SCO 5.0.5 for example).
6074 Corrected to 'c.kname'.
6075 [Phillip Porch <root@theporch.com>]
6077 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6078 a STACK of email addresses from a certificate or request, these look
6079 in the subject name and the subject alternative name extensions and
6080 omit any duplicate addresses.
6083 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6084 This makes DSA verification about 2 % faster.
6087 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6088 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6089 plus overhead for 1024 bit moduli).
6090 This makes exponentiations about 0.5 % faster for 1024 bit
6091 exponents (as measured by "openssl speed rsa2048").
6094 *) Rename memory handling macros to avoid conflicts with other
6096 Malloc => OPENSSL_malloc
6097 Malloc_locked => OPENSSL_malloc_locked
6098 Realloc => OPENSSL_realloc
6099 Free => OPENSSL_free
6102 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6103 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6106 *) CygWin32 support.
6107 [John Jarvie <jjarvie@newsguy.com>]
6109 *) The type-safe stack code has been rejigged. It is now only compiled
6110 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6111 by default all type-specific stack functions are "#define"d back to
6112 standard stack functions. This results in more streamlined output
6113 but retains the type-safety checking possibilities of the original
6117 *) The STACK code has been cleaned up, and certain type declarations
6118 that didn't make a lot of sense have been brought in line. This has
6119 also involved a cleanup of sorts in safestack.h to more correctly
6120 map type-safe stack functions onto their plain stack counterparts.
6121 This work has also resulted in a variety of "const"ifications of
6122 lots of the code, especially "_cmp" operations which should normally
6123 be prototyped with "const" parameters anyway.
6126 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6127 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6128 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6129 where all of 'md' is used each time the PRNG is used, but 'state'
6130 is used only indexed by a cyclic counter. As entropy may not be
6131 well distributed from the beginning, 'md' is important as a
6132 chaining variable. However, the output function chains only half
6133 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6134 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6135 in all of 'state' being rewritten, with the new values depending
6136 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6139 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6140 the handshake is continued after ssl_verify_cert_chain();
6141 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6142 can lead to 'unexplainable' connection aborts later.
6143 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6145 *) Major EVP API cipher revision.
6146 Add hooks for extra EVP features. This allows various cipher
6147 parameters to be set in the EVP interface. Support added for variable
6148 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6149 setting of RC2 and RC5 parameters.
6151 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6154 Remove lots of duplicated code from the EVP library. For example *every*
6155 cipher init() function handles the 'iv' in the same way according to the
6156 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6157 for CFB and OFB modes they zero ctx->num.
6159 New functionality allows removal of S/MIME code RC2 hack.
6161 Most of the routines have the same form and so can be declared in terms
6164 By shifting this to the top level EVP_CipherInit() it can be removed from
6165 all individual ciphers. If the cipher wants to handle IVs or keys
6166 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6169 Change lots of functions like EVP_EncryptUpdate() to now return a
6170 value: although software versions of the algorithms cannot fail
6171 any installed hardware versions can.
6174 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6175 this option is set, tolerate broken clients that send the negotiated
6176 protocol version number instead of the requested protocol version
6180 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6181 i.e. non-zero for export ciphersuites, zero otherwise.
6182 Previous versions had this flag inverted, inconsistent with
6183 rsa_tmp_cb (..._TMP_RSA_CB).
6184 [Bodo Moeller; problem reported by Amit Chopra]
6186 *) Add missing DSA library text string. Work around for some IIS
6187 key files with invalid SEQUENCE encoding.
6190 *) Add a document (doc/standards.txt) that list all kinds of standards
6191 and so on that are implemented in OpenSSL.
6194 *) Enhance c_rehash script. Old version would mishandle certificates
6195 with the same subject name hash and wouldn't handle CRLs at all.
6196 Added -fingerprint option to crl utility, to support new c_rehash
6200 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6203 *) Fix for SSL server purpose checking. Server checking was
6204 rejecting certificates which had extended key usage present
6205 but no ssl client purpose.
6206 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6208 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6209 is a little unclear about how a blank password is handled.
6210 Since the password in encoded as a BMPString with terminating
6211 double NULL a zero length password would end up as just the
6212 double NULL. However no password at all is different and is
6213 handled differently in the PKCS#12 key generation code. NS
6214 treats a blank password as zero length. MSIE treats it as no
6215 password on export: but it will try both on import. We now do
6216 the same: PKCS12_parse() tries zero length and no password if
6217 the password is set to "" or NULL (NULL is now a valid password:
6218 it wasn't before) as does the pkcs12 application.
6221 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6222 perror when PEM_read_bio_X509_REQ fails, the error message must
6223 be obtained from the error queue.
6226 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6227 it in ERR_remove_state if appropriate, and change ERR_get_state
6228 accordingly to avoid race conditions (this is necessary because
6229 thread_hash is no longer constant once set).
6232 *) Bugfix for linux-elf makefile.one.
6235 *) RSA_get_default_method() will now cause a default
6236 RSA_METHOD to be chosen if one doesn't exist already.
6237 Previously this was only set during a call to RSA_new()
6238 or RSA_new_method(NULL) meaning it was possible for
6239 RSA_get_default_method() to return NULL.
6242 *) Added native name translation to the existing DSO code
6243 that will convert (if the flag to do so is set) filenames
6244 that are sufficiently small and have no path information
6245 into a canonical native form. Eg. "blah" converted to
6246 "libblah.so" or "blah.dll" etc.
6249 *) New function ERR_error_string_n(e, buf, len) which is like
6250 ERR_error_string(e, buf), but writes at most 'len' bytes
6251 including the 0 terminator. For ERR_error_string_n, 'buf'
6253 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6255 *) CONF library reworked to become more general. A new CONF
6256 configuration file reader "class" is implemented as well as a
6257 new functions (NCONF_*, for "New CONF") to handle it. The now
6258 old CONF_* functions are still there, but are reimplemented to
6259 work in terms of the new functions. Also, a set of functions
6260 to handle the internal storage of the configuration data is
6261 provided to make it easier to write new configuration file
6262 reader "classes" (I can definitely see something reading a
6263 configuration file in XML format, for example), called _CONF_*,
6264 or "the configuration storage API"...
6266 The new configuration file reading functions are:
6268 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6269 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6271 NCONF_default, NCONF_WIN32
6273 NCONF_dump_fp, NCONF_dump_bio
6275 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6276 NCONF_new creates a new CONF object. This works in the same way
6277 as other interfaces in OpenSSL, like the BIO interface.
6278 NCONF_dump_* dump the internal storage of the configuration file,
6279 which is useful for debugging. All other functions take the same
6280 arguments as the old CONF_* functions wth the exception of the
6281 first that must be a `CONF *' instead of a `LHASH *'.
6283 To make it easer to use the new classes with the old CONF_* functions,
6284 the function CONF_set_default_method is provided.
6287 *) Add '-tls1' option to 'openssl ciphers', which was already
6288 mentioned in the documentation but had not been implemented.
6289 (This option is not yet really useful because even the additional
6290 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6293 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6294 OpenSSL-based applications) load shared libraries and bind to
6295 them in a portable way.
6296 [Geoff Thorpe, with contributions from Richard Levitte]
6298 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6300 *) Make sure _lrotl and _lrotr are only used with MSVC.
6302 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6303 (the default implementation of RAND_status).
6305 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6306 to '-clrext' (= clear extensions), as intended and documented.
6307 [Bodo Moeller; inconsistency pointed out by Michael Attili
6310 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6311 was larger than the MD block size.
6312 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6314 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6315 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6316 using the passed key: if the passed key was a private key the result
6317 of X509_print(), for example, would be to print out all the private key
6321 *) des_quad_cksum() byte order bug fix.
6322 [Ulf Möller, using the problem description in krb4-0.9.7, where
6323 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6325 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6327 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6329 *) For easily testing in shell scripts whether some command
6330 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6331 returns with exit code 0 iff no command of the given name is available.
6332 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6333 the output goes to stdout and nothing is printed to stderr.
6334 Additional arguments are always ignored.
6336 Since for each cipher there is a command of the same name,
6337 the 'no-cipher' compilation switches can be tested this way.
6339 ('openssl no-XXX' is not able to detect pseudo-commands such
6340 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6343 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6346 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6347 is set; it will be thrown away anyway because each handshake creates
6349 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6350 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6351 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6352 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6355 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6356 'Q' and 'R' lose their special meanings (quit/renegotiate).
6357 This is part of what -quiet does; unlike -quiet, -ign_eof
6358 does not suppress any output.
6361 *) Add compatibility options to the purpose and trust code. The
6362 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6363 accepts a certificate or CA, this was the previous behaviour,
6364 with all the associated security issues.
6366 X509_TRUST_COMPAT is the old trust behaviour: only and
6367 automatically trust self signed roots in certificate store. A
6368 new trust setting X509_TRUST_DEFAULT is used to specify that
6369 a purpose has no associated trust setting and it should instead
6370 use the value in the default purpose.
6373 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6374 and fix a memory leak.
6377 *) In util/mkerr.pl (which implements 'make errors'), preserve
6378 reason strings from the previous version of the .c file, as
6379 the default to have only downcase letters (and digits) in
6380 automatically generated reasons codes is not always appropriate.
6383 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6384 using strerror. Previously, ERR_reason_error_string() returned
6385 library names as reason strings for SYSerr; but SYSerr is a special
6386 case where small numbers are errno values, not library numbers.
6389 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6390 converts DSA parameters into DH parameters. (When creating parameters,
6391 DSA_generate_parameters is used.)
6394 *) Include 'length' (recommended exponent length) in C code generated
6395 by 'openssl dhparam -C'.
6398 *) The second argument to set_label in perlasm was already being used
6399 so couldn't be used as a "file scope" flag. Moved to third argument
6403 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6404 instead of RAND_bytes for encryption IVs and salts.
6407 *) Include RAND_status() into RAND_METHOD instead of implementing
6408 it only for md_rand.c Otherwise replacing the PRNG by calling
6409 RAND_set_rand_method would be impossible.
6412 *) Don't let DSA_generate_key() enter an infinite loop if the random
6413 number generation fails.
6416 *) New 'rand' application for creating pseudo-random output.
6419 *) Added configuration support for Linux/IA64
6420 [Rolf Haberrecker <rolf@suse.de>]
6422 *) Assembler module support for Mingw32.
6425 *) Shared library support for HPUX (in shlib/).
6426 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6428 *) Shared library support for Solaris gcc.
6429 [Lutz Behnke <behnke@trustcenter.de>]
6431 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6433 *) PKCS7_encrypt() was adding text MIME headers twice because they
6434 were added manually and by SMIME_crlf_copy().
6437 *) In bntest.c don't call BN_rand with zero bits argument.
6438 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6440 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6441 case was implemented. This caused BN_div_recp() to fail occasionally.
6444 *) Add an optional second argument to the set_label() in the perl
6445 assembly language builder. If this argument exists and is set
6446 to 1 it signals that the assembler should use a symbol whose
6447 scope is the entire file, not just the current function. This
6448 is needed with MASM which uses the format label:: for this scope.
6449 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6451 *) Change the ASN1 types so they are typedefs by default. Before
6452 almost all types were #define'd to ASN1_STRING which was causing
6453 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6457 *) Change names of new functions to the new get1/get0 naming
6458 convention: After 'get1', the caller owns a reference count
6459 and has to call ..._free; 'get0' returns a pointer to some
6460 data structure without incrementing reference counters.
6461 (Some of the existing 'get' functions increment a reference
6462 counter, some don't.)
6463 Similarly, 'set1' and 'add1' functions increase reference
6464 counters or duplicate objects.
6467 *) Allow for the possibility of temp RSA key generation failure:
6468 the code used to assume it always worked and crashed on failure.
6471 *) Fix potential buffer overrun problem in BIO_printf().
6472 [Ulf Möller, using public domain code by Patrick Powell; problem
6473 pointed out by David Sacerdote <das33@cornell.edu>]
6475 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6476 RAND_egd() and RAND_status(). In the command line application,
6477 the EGD socket can be specified like a seed file using RANDFILE
6481 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6482 Some CAs (e.g. Verisign) distribute certificates in this form.
6485 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6486 list to exclude them. This means that no special compilation option
6487 is needed to use anonymous DH: it just needs to be included in the
6491 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6492 EVP_MD_type. The old functionality is available in a new macro called
6493 EVP_MD_md(). Change code that uses it and update docs.
6496 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6497 where the 'void *' argument is replaced by a function pointer argument.
6498 Previously 'void *' was abused to point to functions, which works on
6499 many platforms, but is not correct. As these functions are usually
6500 called by macros defined in OpenSSL header files, most source code
6501 should work without changes.
6504 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6505 sections with information on -D... compiler switches used for
6506 compiling the library so that applications can see them. To enable
6507 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6508 must be defined. E.g.,
6509 #define OPENSSL_ALGORITHM_DEFINES
6510 #include <openssl/opensslconf.h>
6511 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6512 [Richard Levitte, Ulf and Bodo Möller]
6514 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6518 *) Change the 'other' type in certificate aux info to a STACK_OF
6519 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6520 the required ASN1 format: arbitrary types determined by an OID.
6523 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6524 argument to 'req'. This is not because the function is newer or
6525 better than others it just uses the work 'NEW' in the certificate
6526 request header lines. Some software needs this.
6529 *) Reorganise password command line arguments: now passwords can be
6530 obtained from various sources. Delete the PEM_cb function and make
6531 it the default behaviour: i.e. if the callback is NULL and the
6532 usrdata argument is not NULL interpret it as a null terminated pass
6533 phrase. If usrdata and the callback are NULL then the pass phrase
6534 is prompted for as usual.
6537 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6538 the support is automatically enabled. The resulting binaries will
6539 autodetect the card and use it if present.
6540 [Ben Laurie and Compaq Inc.]
6542 *) Work around for Netscape hang bug. This sends certificate request
6543 and server done in one record. Since this is perfectly legal in the
6544 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6545 the bugs/SSLv3 entry for more info.
6548 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6551 *) Add -rand argument to smime and pkcs12 applications and read/write
6555 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6558 *) Add command line password options to the remaining applications.
6561 *) Bug fix for BN_div_recp() for numerators with an even number of
6565 *) More tests in bntest.c, and changed test_bn output.
6568 *) ./config recognizes MacOS X now.
6571 *) Bug fix for BN_div() when the first words of num and divsor are
6572 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6575 *) Add support for various broken PKCS#8 formats, and command line
6576 options to produce them.
6579 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6580 get temporary BIGNUMs from a BN_CTX.
6583 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6587 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6588 include a #define from the old name to the new. The original intent
6589 was that statically linked binaries could for example just call
6590 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6591 link with digests. This never worked becayse SSLeay_add_all_digests()
6592 and SSLeay_add_all_ciphers() were in the same source file so calling
6593 one would link with the other. They are now in separate source files.
6596 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6599 *) Use a less unusual form of the Miller-Rabin primality test (it used
6600 a binary algorithm for exponentiation integrated into the Miller-Rabin
6601 loop, our standard modexp algorithms are faster).
6604 *) Support for the EBCDIC character set completed.
6605 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6607 *) Source code cleanups: use const where appropriate, eliminate casts,
6608 use void * instead of char * in lhash.
6611 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6612 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6613 this the server could overwrite ephemeral keys that the client
6617 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6618 using 50 iterations of the Rabin-Miller test.
6620 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6621 iterations of the Rabin-Miller test as required by the appendix
6622 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6623 As BN_is_prime_fasttest includes trial division, DSA parameter
6624 generation becomes much faster.
6626 This implies a change for the callback functions in DSA_is_prime
6627 and DSA_generate_parameters: The callback function is called once
6628 for each positive witness in the Rabin-Miller test, not just
6629 occasionally in the inner loop; and the parameters to the
6630 callback function now provide an iteration count for the outer
6631 loop rather than for the current invocation of the inner loop.
6632 DSA_generate_parameters additionally can call the callback
6633 function with an 'iteration count' of -1, meaning that a
6634 candidate has passed the trial division test (when q is generated
6635 from an application-provided seed, trial division is skipped).
6638 *) New function BN_is_prime_fasttest that optionally does trial
6639 division before starting the Rabin-Miller test and has
6640 an additional BN_CTX * argument (whereas BN_is_prime always
6641 has to allocate at least one BN_CTX).
6642 'callback(1, -1, cb_arg)' is called when a number has passed the
6643 trial division stage.
6646 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6650 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6653 *) New function BN_pseudo_rand().
6656 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6657 bignum version of BN_from_montgomery() with the working code from
6658 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6662 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6663 made it impossible to use the same SSL_SESSION data structure in
6664 SSL2 clients in multiple threads.
6667 *) The return value of RAND_load_file() no longer counts bytes obtained
6668 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6669 to seed the PRNG (previously an explicit byte count was required).
6670 [Ulf Möller, Bodo Möller]
6672 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6673 used (char *) instead of (void *) and had casts all over the place.
6676 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6679 *) Retain source code compatibility for BN_prime_checks macro:
6680 BN_is_prime(..., BN_prime_checks, ...) now uses
6681 BN_prime_checks_for_size to determine the appropriate number of
6682 Rabin-Miller iterations.
6685 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6686 DH_CHECK_P_NOT_SAFE_PRIME.
6687 (Check if this is true? OpenPGP calls them "strong".)
6690 *) Merge the functionality of "dh" and "gendh" programs into a new program
6691 "dhparam". The old programs are retained for now but will handle DH keys
6692 (instead of parameters) in future.
6695 *) Make the ciphers, s_server and s_client programs check the return values
6696 when a new cipher list is set.
6699 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6700 ciphers. Before when the 56bit ciphers were enabled the sorting was
6703 The syntax for the cipher sorting has been extended to support sorting by
6704 cipher-strength (using the strength_bits hard coded in the tables).
6705 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6707 Fix a bug in the cipher-command parser: when supplying a cipher command
6708 string with an "undefined" symbol (neither command nor alphanumeric
6709 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6710 an error is flagged.
6712 Due to the strength-sorting extension, the code of the
6713 ssl_create_cipher_list() function was completely rearranged. I hope that
6714 the readability was also increased :-)
6715 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6717 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6718 for the first serial number and places 2 in the serial number file. This
6719 avoids problems when the root CA is created with serial number zero and
6720 the first user certificate has the same issuer name and serial number
6724 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6725 the new code. Add documentation for this stuff.
6728 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6729 X509_*() to X509at_*() on the grounds that they don't handle X509
6730 structures and behave in an analagous way to the X509v3 functions:
6731 they shouldn't be called directly but wrapper functions should be used
6734 So we also now have some wrapper functions that call the X509at functions
6735 when passed certificate requests. (TO DO: similar things can be done with
6736 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6737 things. Some of these need some d2i or i2d and print functionality
6738 because they handle more complex structures.)
6741 *) Add missing #ifndefs that caused missing symbols when building libssl
6742 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6743 NO_RSA in ssl/s2*.c.
6744 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6746 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6747 has a return value which indicates the quality of the random data
6748 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6749 error queue. New function RAND_pseudo_bytes() generates output that is
6750 guaranteed to be unique but not unpredictable. RAND_add is like
6751 RAND_seed, but takes an extra argument for an entropy estimate
6752 (RAND_seed always assumes full entropy).
6755 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6756 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6757 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6758 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6759 false-positive rate of at most 2^-80 for random input.
6762 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6765 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6766 in the 0.9.5 release), this returns the chain
6767 from an X509_CTX structure with a dup of the stack and all
6768 the X509 reference counts upped: so the stack will exist
6769 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6772 Also make SSL_SESSION_print() print out the verify return
6776 *) Add manpage for the pkcs12 command. Also change the default
6777 behaviour so MAC iteration counts are used unless the new
6778 -nomaciter option is used. This improves file security and
6779 only older versions of MSIE (4.0 for example) need it.
6782 *) Honor the no-xxx Configure options when creating .DEF files.
6785 *) Add PKCS#10 attributes to field table: challengePassword,
6786 unstructuredName and unstructuredAddress. These are taken from
6787 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6788 international characters are used.
6790 More changes to X509_ATTRIBUTE code: allow the setting of types
6791 based on strings. Remove the 'loc' parameter when adding
6792 attributes because these will be a SET OF encoding which is sorted
6796 *) Initial changes to the 'req' utility to allow request generation
6797 automation. This will allow an application to just generate a template
6798 file containing all the field values and have req construct the
6801 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6802 used all over the place including certificate requests and PKCS#7
6803 structures. They are currently handled manually where necessary with
6804 some primitive wrappers for PKCS#7. The new functions behave in a
6805 manner analogous to the X509 extension functions: they allow
6806 attributes to be looked up by NID and added.
6808 Later something similar to the X509V3 code would be desirable to
6809 automatically handle the encoding, decoding and printing of the
6810 more complex types. The string types like challengePassword can
6811 be handled by the string table functions.
6813 Also modified the multi byte string table handling. Now there is
6814 a 'global mask' which masks out certain types. The table itself
6815 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6816 is useful when for example there is only one permissible type
6817 (as in countryName) and using the mask might result in no valid
6821 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6822 SSL_get_peer_finished to allow applications to obtain the latest
6823 Finished messages sent to the peer or expected from the peer,
6824 respectively. (SSL_get_peer_finished is usually the Finished message
6825 actually received from the peer, otherwise the protocol will be aborted.)
6827 As the Finished message are message digests of the complete handshake
6828 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6829 be used for external authentication procedures when the authentication
6830 provided by SSL/TLS is not desired or is not enough.
6833 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6834 the host supports BWX extension and if Compaq C is present on the
6835 $PATH. Just exploiting of the BWX extension results in 20-30%
6836 performance kick for some algorithms, e.g. DES and RC4 to mention
6837 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6841 *) Add support for MS "fast SGC". This is arguably a violation of the
6842 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6843 weak crypto and after checking the certificate is SGC a second one
6844 with strong crypto. MS SGC stops the first handshake after receiving
6845 the server certificate message and sends a second client hello. Since
6846 a server will typically do all the time consuming operations before
6847 expecting any further messages from the client (server key exchange
6848 is the most expensive) there is little difference between the two.
6850 To get OpenSSL to support MS SGC we have to permit a second client
6851 hello message after we have sent server done. In addition we have to
6852 reset the MAC if we do get this second client hello.
6855 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6856 if a DER encoded private key is RSA or DSA traditional format. Changed
6857 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6858 format DER encoded private key. Newer code should use PKCS#8 format which
6859 has the key type encoded in the ASN1 structure. Added DER private key
6860 support to pkcs8 application.
6863 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6864 ciphersuites has been selected (as required by the SSL 3/TLS 1
6865 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6866 is set, we interpret this as a request to violate the specification
6867 (the worst that can happen is a handshake failure, and 'correct'
6868 behaviour would result in a handshake failure anyway).
6871 *) In SSL_CTX_add_session, take into account that there might be multiple
6872 SSL_SESSION structures with the same session ID (e.g. when two threads
6873 concurrently obtain them from an external cache).
6874 The internal cache can handle only one SSL_SESSION with a given ID,
6875 so if there's a conflict, we now throw out the old one to achieve
6879 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6880 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6881 some routines that use cipher OIDs: some ciphers do not have OIDs
6882 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6886 *) Simplify the trust setting structure and code. Now we just have
6887 two sequences of OIDs for trusted and rejected settings. These will
6888 typically have values the same as the extended key usage extension
6889 and any application specific purposes.
6891 The trust checking code now has a default behaviour: it will just
6892 check for an object with the same NID as the passed id. Functions can
6893 be provided to override either the default behaviour or the behaviour
6894 for a given id. SSL client, server and email already have functions
6895 in place for compatibility: they check the NID and also return "trusted"
6896 if the certificate is self signed.
6899 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6900 traditional format into an EVP_PKEY structure.
6903 *) Add a password callback function PEM_cb() which either prompts for
6904 a password if usr_data is NULL or otherwise assumes it is a null
6905 terminated password. Allow passwords to be passed on command line
6906 environment or config files in a few more utilities.
6909 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6910 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6911 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6912 Update documentation.
6915 *) Support for ASN1 "NULL" type. This could be handled before by using
6916 ASN1_TYPE but there wasn't any function that would try to read a NULL
6917 and produce an error if it couldn't. For compatibility we also have
6918 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6919 don't allocate anything because they don't need to.
6922 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6924 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6926 *) Rebuild of the memory allocation routines used by OpenSSL code and
6927 possibly others as well. The purpose is to make an interface that
6928 provide hooks so anyone can build a separate set of allocation and
6929 deallocation routines to be used by OpenSSL, for example memory
6930 pool implementations, or something else, which was previously hard
6931 since Malloc(), Realloc() and Free() were defined as macros having
6932 the values malloc, realloc and free, respectively (except for Win32
6933 compilations). The same is provided for memory debugging code.
6934 OpenSSL already comes with functionality to find memory leaks, but
6935 this gives people a chance to debug other memory problems.
6937 With these changes, a new set of functions and macros have appeared:
6939 CRYPTO_set_mem_debug_functions() [F]
6940 CRYPTO_get_mem_debug_functions() [F]
6941 CRYPTO_dbg_set_options() [F]
6942 CRYPTO_dbg_get_options() [F]
6943 CRYPTO_malloc_debug_init() [M]
6945 The memory debug functions are NULL by default, unless the library
6946 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6947 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6948 gives the standard debugging functions that come with OpenSSL) or
6949 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6950 provided by the library user) must be used. When the standard
6951 debugging functions are used, CRYPTO_dbg_set_options can be used to
6952 request additional information:
6953 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6954 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6956 Also, things like CRYPTO_set_mem_functions will always give the
6957 expected result (the new set of functions is used for allocation
6958 and deallocation) at all times, regardless of platform and compiler
6961 To finish it up, some functions that were never use in any other
6962 way than through macros have a new API and new semantic:
6965 CRYPTO_dbg_realloc()
6968 All macros of value have retained their old syntax.
6969 [Richard Levitte and Bodo Moeller]
6971 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6972 ordering of SMIMECapabilities wasn't in "strength order" and there
6973 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6977 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6978 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6979 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6981 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6982 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6983 functionality to handle multipart/signed properly) and a utility
6984 called 'smime' to call all this stuff. This is based on code I
6985 originally wrote for Celo who have kindly allowed it to be
6986 included in OpenSSL.
6989 *) Add variants des_set_key_checked and des_set_key_unchecked of
6990 des_set_key (aka des_key_sched). Global variable des_check_key
6991 decides which of these is called by des_set_key; this way
6992 des_check_key behaves as it always did, but applications and
6993 the library itself, which was buggy for des_check_key == 1,
6994 have a cleaner way to pick the version they need.
6997 *) New function PKCS12_newpass() which changes the password of a
7001 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7002 dynamic mix. In both cases the ids can be used as an index into the
7003 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7004 functions so they accept a list of the field values and the
7005 application doesn't need to directly manipulate the X509_TRUST
7009 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7013 *) Modify the way the V3 extension code looks up extensions. This now
7014 works in a similar way to the object code: we have some "standard"
7015 extensions in a static table which is searched with OBJ_bsearch()
7016 and the application can add dynamic ones if needed. The file
7017 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7018 updated whenever a new extension is added to the core code and kept
7019 in ext_nid order. There is a simple program 'tabtest.c' which checks
7020 this. New extensions are not added too often so this file can readily
7021 be maintained manually.
7023 There are two big advantages in doing things this way. The extensions
7024 can be looked up immediately and no longer need to be "added" using
7025 X509V3_add_standard_extensions(): this function now does nothing.
7026 [Side note: I get *lots* of email saying the extension code doesn't
7027 work because people forget to call this function]
7028 Also no dynamic allocation is done unless new extensions are added:
7029 so if we don't add custom extensions there is no need to call
7030 X509V3_EXT_cleanup().
7033 *) Modify enc utility's salting as follows: make salting the default. Add a
7034 magic header, so unsalted files fail gracefully instead of just decrypting
7035 to garbage. This is because not salting is a big security hole, so people
7036 should be discouraged from doing it.
7039 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7040 digest to be passed on the command line but it only used this
7041 parameter when signing a certificate. Modified so all relevant
7042 operations are affected by the digest parameter including the
7043 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7044 DSA key was used because it didn't fix the digest.
7047 *) Initial certificate chain verify code. Currently tests the untrusted
7048 certificates for consistency with the verify purpose (which is set
7049 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7051 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7052 this is because it will reject chains with invalid extensions whereas
7053 every previous version of OpenSSL and SSLeay made no checks at all.
7055 Trust code: checks the root CA for the relevant trust settings. Trust
7056 settings have an initial value consistent with the verify purpose: e.g.
7057 if the verify purpose is for SSL client use it expects the CA to be
7058 trusted for SSL client use. However the default value can be changed to
7059 permit custom trust settings: one example of this would be to only trust
7060 certificates from a specific "secure" set of CAs.
7062 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7063 which should be used for version portability: especially since the
7064 verify structure is likely to change more often now.
7066 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7067 to set them. If not set then assume SSL clients will verify SSL servers
7070 Two new options to the verify program: -untrusted allows a set of
7071 untrusted certificates to be passed in and -purpose which sets the
7072 intended purpose of the certificate. If a purpose is set then the
7073 new chain verify code is used to check extension consistency.
7076 *) Support for the authority information access extension.
7079 *) Modify RSA and DSA PEM read routines to transparently handle
7080 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7081 public keys in a format compatible with certificate
7082 SubjectPublicKeyInfo structures. Unfortunately there were already
7083 functions called *_PublicKey_* which used various odd formats so
7084 these are retained for compatibility: however the DSA variants were
7085 never in a public release so they have been deleted. Changed dsa/rsa
7086 utilities to handle the new format: note no releases ever handled public
7087 keys so we should be OK.
7089 The primary motivation for this change is to avoid the same fiasco
7090 that dogs private keys: there are several incompatible private key
7091 formats some of which are standard and some OpenSSL specific and
7092 require various evil hacks to allow partial transparent handling and
7093 even then it doesn't work with DER formats. Given the option anything
7094 other than PKCS#8 should be dumped: but the other formats have to
7095 stay in the name of compatibility.
7097 With public keys and the benefit of hindsight one standard format
7098 is used which works with EVP_PKEY, RSA or DSA structures: though
7099 it clearly returns an error if you try to read the wrong kind of key.
7101 Added a -pubkey option to the 'x509' utility to output the public key.
7102 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7103 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7104 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7105 that do the same as the EVP_PKEY_assign_*() except they up the
7106 reference count of the added key (they don't "swallow" the
7110 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7111 CRLs would fail if the file contained no certificates or no CRLs:
7112 added a new function to read in both types and return the number
7113 read: this means that if none are read it will be an error. The
7114 DER versions of the certificate and CRL reader would always fail
7115 because it isn't possible to mix certificates and CRLs in DER format
7116 without choking one or the other routine. Changed this to just read
7117 a certificate: this is the best we can do. Also modified the code
7118 in apps/verify.c to take notice of return codes: it was previously
7119 attempting to read in certificates from NULL pointers and ignoring
7120 any errors: this is one reason why the cert and CRL reader seemed
7121 to work. It doesn't check return codes from the default certificate
7122 routines: these may well fail if the certificates aren't installed.
7125 *) Code to support otherName option in GeneralName.
7128 *) First update to verify code. Change the verify utility
7129 so it warns if it is passed a self signed certificate:
7130 for consistency with the normal behaviour. X509_verify
7131 has been modified to it will now verify a self signed
7132 certificate if *exactly* the same certificate appears
7133 in the store: it was previously impossible to trust a
7134 single self signed certificate. This means that:
7135 openssl verify ss.pem
7136 now gives a warning about a self signed certificate but
7137 openssl verify -CAfile ss.pem ss.pem
7141 *) For servers, store verify_result in SSL_SESSION data structure
7142 (and add it to external session representation).
7143 This is needed when client certificate verifications fails,
7144 but an application-provided verification callback (set by
7145 SSL_CTX_set_cert_verify_callback) allows accepting the session
7146 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7147 but returns 1): When the session is reused, we have to set
7148 ssl->verify_result to the appropriate error code to avoid
7150 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7152 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7153 case in PKCS7_dataInit() where the signed PKCS7 structure
7154 didn't contain any existing data because it was being created.
7155 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7157 *) Add a salt to the key derivation routines in enc.c. This
7158 forms the first 8 bytes of the encrypted file. Also add a
7159 -S option to allow a salt to be input on the command line.
7162 *) New function X509_cmp(). Oddly enough there wasn't a function
7163 to compare two certificates. We do this by working out the SHA1
7164 hash and comparing that. X509_cmp() will be needed by the trust
7168 *) SSL_get1_session() is like SSL_get_session(), but increments
7169 the reference count in the SSL_SESSION returned.
7170 [Geoff Thorpe <geoff@eu.c2.net>]
7172 *) Fix for 'req': it was adding a null to request attributes.
7173 Also change the X509_LOOKUP and X509_INFO code to handle
7174 certificate auxiliary information.
7177 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7181 *) Add the possibility to add extra information to the memory leak
7182 detecting output, to form tracebacks, showing from where each
7183 allocation was originated: CRYPTO_push_info("constant string") adds
7184 the string plus current file name and line number to a per-thread
7185 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7186 is like calling CYRPTO_pop_info() until the stack is empty.
7187 Also updated memory leak detection code to be multi-thread-safe.
7190 *) Add options -text and -noout to pkcs7 utility and delete the
7191 encryption options which never did anything. Update docs.
7194 *) Add options to some of the utilities to allow the pass phrase
7195 to be included on either the command line (not recommended on
7196 OSes like Unix) or read from the environment. Update the
7197 manpages and fix a few bugs.
7200 *) Add a few manpages for some of the openssl commands.
7203 *) Fix the -revoke option in ca. It was freeing up memory twice,
7204 leaking and not finding already revoked certificates.
7207 *) Extensive changes to support certificate auxiliary information.
7208 This involves the use of X509_CERT_AUX structure and X509_AUX
7209 functions. An X509_AUX function such as PEM_read_X509_AUX()
7210 can still read in a certificate file in the usual way but it
7211 will also read in any additional "auxiliary information". By
7212 doing things this way a fair degree of compatibility can be
7213 retained: existing certificates can have this information added
7214 using the new 'x509' options.
7216 Current auxiliary information includes an "alias" and some trust
7217 settings. The trust settings will ultimately be used in enhanced
7218 certificate chain verification routines: currently a certificate
7219 can only be trusted if it is self signed and then it is trusted
7223 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7224 The problem was that one of the replacement routines had not been working
7225 since SSLeay releases. For now the offending routine has been replaced
7226 with non-optimised assembler. Even so, this now gives around 95%
7227 performance improvement for 1024 bit RSA signs.
7230 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7231 handling. Most clients have the effective key size in bits equal to
7232 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7233 A few however don't do this and instead use the size of the decrypted key
7234 to determine the RC2 key length and the AlgorithmIdentifier to determine
7235 the effective key length. In this case the effective key length can still
7236 be 40 bits but the key length can be 168 bits for example. This is fixed
7237 by manually forcing an RC2 key into the EVP_PKEY structure because the
7238 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7239 the key length and effective key length are equal.
7242 *) Add a bunch of functions that should simplify the creation of
7243 X509_NAME structures. Now you should be able to do:
7244 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7245 and have it automatically work out the correct field type and fill in
7246 the structures. The more adventurous can try:
7247 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7248 and it will (hopefully) work out the correct multibyte encoding.
7251 *) Change the 'req' utility to use the new field handling and multibyte
7252 copy routines. Before the DN field creation was handled in an ad hoc
7253 way in req, ca, and x509 which was rather broken and didn't support
7254 BMPStrings or UTF8Strings. Since some software doesn't implement
7255 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7256 using the dirstring_type option. See the new comment in the default
7257 openssl.cnf for more info.
7260 *) Make crypto/rand/md_rand.c more robust:
7261 - Assure unique random numbers after fork().
7262 - Make sure that concurrent threads access the global counter and
7263 md serializably so that we never lose entropy in them
7264 or use exactly the same state in multiple threads.
7265 Access to the large state is not always serializable because
7266 the additional locking could be a performance killer, and
7267 md should be large enough anyway.
7270 *) New file apps/app_rand.c with commonly needed functionality
7271 for handling the random seed file.
7273 Use the random seed file in some applications that previously did not:
7275 dsaparam -genkey (which also ignored its '-rand' option),
7278 x509 (when signing).
7279 Except on systems with /dev/urandom, it is crucial to have a random
7280 seed file at least for key creation, DSA signing, and for DH exchanges;
7281 for RSA signatures we could do without one.
7283 gendh and gendsa (unlike genrsa) used to read only the first byte
7284 of each file listed in the '-rand' option. The function as previously
7285 found in genrsa is now in app_rand.c and is used by all programs
7286 that support '-rand'.
7289 *) In RAND_write_file, use mode 0600 for creating files;
7290 don't just chmod when it may be too late.
7293 *) Report an error from X509_STORE_load_locations
7294 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7297 *) New function ASN1_mbstring_copy() this copies a string in either
7298 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7299 into an ASN1_STRING type. A mask of permissible types is passed
7300 and it chooses the "minimal" type to use or an error if not type
7304 *) Add function equivalents to the various macros in asn1.h. The old
7305 macros are retained with an M_ prefix. Code inside the library can
7306 use the M_ macros. External code (including the openssl utility)
7307 should *NOT* in order to be "shared library friendly".
7310 *) Add various functions that can check a certificate's extensions
7311 to see if it usable for various purposes such as SSL client,
7312 server or S/MIME and CAs of these types. This is currently
7313 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7314 verification. Also added a -purpose flag to x509 utility to
7315 print out all the purposes.
7318 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7322 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7323 for, obtain and decode and extension and obtain its critical flag.
7324 This allows all the necessary extension code to be handled in a
7325 single function call.
7328 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7329 platforms. See crypto/rc4/rc4_enc.c for further details.
7332 *) New -noout option to asn1parse. This causes no output to be produced
7333 its main use is when combined with -strparse and -out to extract data
7334 from a file (which may not be in ASN.1 format).
7337 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7338 when producing the local key id.
7339 [Richard Levitte <levitte@stacken.kth.se>]
7341 *) New option -dhparam in s_server. This allows a DH parameter file to be
7342 stated explicitly. If it is not stated then it tries the first server
7343 certificate file. The previous behaviour hard coded the filename
7347 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7348 a public key to be input or output. For example:
7349 openssl rsa -in key.pem -pubout -out pubkey.pem
7350 Also added necessary DSA public key functions to handle this.
7353 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7354 in the message. This was handled by allowing
7355 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7356 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7358 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7359 to the end of the strings whereas this didn't. This would cause problems
7360 if strings read with d2i_ASN1_bytes() were later modified.
7361 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7363 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7364 data and it contains EOF it will end up returning an error. This is
7365 caused by input 46 bytes long. The cause is due to the way base64
7366 BIOs find the start of base64 encoded data. They do this by trying a
7367 trial decode on each line until they find one that works. When they
7368 do a flag is set and it starts again knowing it can pass all the
7369 data directly through the decoder. Unfortunately it doesn't reset
7370 the context it uses. This means that if EOF is reached an attempt
7371 is made to pass two EOFs through the context and this causes the
7372 resulting error. This can also cause other problems as well. As is
7373 usual with these problems it takes *ages* to find and the fix is
7374 trivial: move one line.
7375 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7377 *) Ugly workaround to get s_client and s_server working under Windows. The
7378 old code wouldn't work because it needed to select() on sockets and the
7379 tty (for keypresses and to see if data could be written). Win32 only
7380 supports select() on sockets so we select() with a 1s timeout on the
7381 sockets and then see if any characters are waiting to be read, if none
7382 are present then we retry, we also assume we can always write data to
7383 the tty. This isn't nice because the code then blocks until we've
7384 received a complete line of data and it is effectively polling the
7385 keyboard at 1s intervals: however it's quite a bit better than not
7386 working at all :-) A dedicated Windows application might handle this
7387 with an event loop for example.
7390 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7391 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7392 will be called when RSA_sign() and RSA_verify() are used. This is useful
7393 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7394 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7395 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7396 This necessitated the support of an extra signature type NID_md5_sha1
7397 for SSL signatures and modifications to the SSL library to use it instead
7398 of calling RSA_public_decrypt() and RSA_private_encrypt().
7401 *) Add new -verify -CAfile and -CApath options to the crl program, these
7402 will lookup a CRL issuers certificate and verify the signature in a
7403 similar way to the verify program. Tidy up the crl program so it
7404 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7405 less strict. It will now permit CRL extensions even if it is not
7406 a V2 CRL: this will allow it to tolerate some broken CRLs.
7409 *) Initialize all non-automatic variables each time one of the openssl
7410 sub-programs is started (this is necessary as they may be started
7411 multiple times from the "OpenSSL>" prompt).
7412 [Lennart Bang, Bodo Moeller]
7414 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7415 removing all other RSA functionality (this is what NO_RSA does). This
7416 is so (for example) those in the US can disable those operations covered
7417 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7421 *) Non-copying interface to BIO pairs.
7422 (still largely untested)
7425 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7426 ASCII string. This was handled independently in various places before.
7429 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7430 UTF8 strings a character at a time.
7433 *) Use client_version from client hello to select the protocol
7434 (s23_srvr.c) and for RSA client key exchange verification
7435 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7438 *) Add various utility functions to handle SPKACs, these were previously
7439 handled by poking round in the structure internals. Added new function
7440 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7441 print, verify and generate SPKACs. Based on an original idea from
7442 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7445 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7448 *) Allow the config file extension section to be overwritten on the
7449 command line. Based on an original idea from Massimiliano Pala
7450 <madwolf@comune.modena.it>. The new option is called -extensions
7451 and can be applied to ca, req and x509. Also -reqexts to override
7452 the request extensions in req and -crlexts to override the crl extensions
7456 *) Add new feature to the SPKAC handling in ca. Now you can include
7457 the same field multiple times by preceding it by "XXXX." for example:
7460 this is the same syntax as used in the req config file.
7463 *) Allow certificate extensions to be added to certificate requests. These
7464 are specified in a 'req_extensions' option of the req section of the
7465 config file. They can be printed out with the -text option to req but
7466 are otherwise ignored at present.
7469 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7470 data read consists of only the final block it would not decrypted because
7471 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7472 A misplaced 'break' also meant the decrypted final block might not be
7473 copied until the next read.
7476 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7477 a few extra parameters to the DH structure: these will be useful if
7478 for example we want the value of 'q' or implement X9.42 DH.
7481 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7482 provides hooks that allow the default DSA functions or functions on a
7483 "per key" basis to be replaced. This allows hardware acceleration and
7484 hardware key storage to be handled without major modification to the
7485 library. Also added low level modexp hooks and CRYPTO_EX structure and
7486 associated functions.
7489 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7490 as "read only": it can't be written to and the buffer it points to will
7491 not be freed. Reading from a read only BIO is much more efficient than
7492 a normal memory BIO. This was added because there are several times when
7493 an area of memory needs to be read from a BIO. The previous method was
7494 to create a memory BIO and write the data to it, this results in two
7495 copies of the data and an O(n^2) reading algorithm. There is a new
7496 function BIO_new_mem_buf() which creates a read only memory BIO from
7497 an area of memory. Also modified the PKCS#7 routines to use read only
7501 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7502 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7503 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7504 but a retry condition occured while trying to read the rest.
7507 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7508 NID_pkcs7_encrypted by default: this was wrong since this should almost
7509 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7510 the encrypted data type: this is a more sensible place to put it and it
7511 allows the PKCS#12 code to be tidied up that duplicated this
7515 *) Changed obj_dat.pl script so it takes its input and output files on
7516 the command line. This should avoid shell escape redirection problems
7520 *) Initial support for certificate extension requests, these are included
7521 in things like Xenroll certificate requests. Included functions to allow
7522 extensions to be obtained and added.
7525 *) -crlf option to s_client and s_server for sending newlines as
7526 CRLF (as required by many protocols).
7529 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7531 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7532 [Ralf S. Engelschall]
7534 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7535 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7537 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7541 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7542 DH parameters/keys (q is lost during that conversion, but the resulting
7543 DH parameters contain its length).
7545 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7546 much faster than DH_generate_parameters (which creates parameters
7547 where p = 2*q + 1), and also the smaller q makes DH computations
7548 much more efficient (160-bit exponentiation instead of 1024-bit
7549 exponentiation); so this provides a convenient way to support DHE
7550 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7551 utter importance to use
7552 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7554 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7555 when such DH parameters are used, because otherwise small subgroup
7556 attacks may become possible!
7559 *) Avoid memory leak in i2d_DHparams.
7562 *) Allow the -k option to be used more than once in the enc program:
7563 this allows the same encrypted message to be read by multiple recipients.
7566 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7567 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7568 it will always use the numerical form of the OID, even if it has a short
7572 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7573 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7574 otherwise bn_mod_exp was called. In the case of hardware keys for example
7575 no private key components need be present and it might store extra data
7576 in the RSA structure, which cannot be accessed from bn_mod_exp.
7577 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7578 private key operations.
7581 *) Added support for SPARC Linux.
7584 *) pem_password_cb function type incompatibly changed from
7585 typedef int pem_password_cb(char *buf, int size, int rwflag);
7587 ....(char *buf, int size, int rwflag, void *userdata);
7588 so that applications can pass data to their callbacks:
7589 The PEM[_ASN1]_{read,write}... functions and macros now take an
7590 additional void * argument, which is just handed through whenever
7591 the password callback is called.
7592 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7594 New function SSL_CTX_set_default_passwd_cb_userdata.
7596 Compatibility note: As many C implementations push function arguments
7597 onto the stack in reverse order, the new library version is likely to
7598 interoperate with programs that have been compiled with the old
7599 pem_password_cb definition (PEM_whatever takes some data that
7600 happens to be on the stack as its last argument, and the callback
7601 just ignores this garbage); but there is no guarantee whatsoever that
7604 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7605 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7606 problems not only on Windows, but also on some Unix platforms.
7607 To avoid problematic command lines, these definitions are now in an
7608 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7609 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7612 *) MIPS III/IV assembler module is reimplemented.
7615 *) More DES library cleanups: remove references to srand/rand and
7616 delete an unused file.
7619 *) Add support for the the free Netwide assembler (NASM) under Win32,
7620 since not many people have MASM (ml) and it can be hard to obtain.
7621 This is currently experimental but it seems to work OK and pass all
7622 the tests. Check out INSTALL.W32 for info.
7625 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7626 without temporary keys kept an extra copy of the server key,
7627 and connections with temporary keys did not free everything in case
7631 *) New function RSA_check_key and new openssl rsa option -check
7632 for verifying the consistency of RSA keys.
7633 [Ulf Moeller, Bodo Moeller]
7635 *) Various changes to make Win32 compile work:
7636 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7637 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7638 comparison" warnings.
7639 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7642 *) Add a debugging option to PKCS#5 v2 key generation function: when
7643 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7644 derived keys are printed to stderr.
7647 *) Copy the flags in ASN1_STRING_dup().
7648 [Roman E. Pavlov <pre@mo.msk.ru>]
7650 *) The x509 application mishandled signing requests containing DSA
7651 keys when the signing key was also DSA and the parameters didn't match.
7653 It was supposed to omit the parameters when they matched the signing key:
7654 the verifying software was then supposed to automatically use the CA's
7655 parameters if they were absent from the end user certificate.
7657 Omitting parameters is no longer recommended. The test was also
7658 the wrong way round! This was probably due to unusual behaviour in
7659 EVP_cmp_parameters() which returns 1 if the parameters match.
7660 This meant that parameters were omitted when they *didn't* match and
7661 the certificate was useless. Certificates signed with 'ca' didn't have
7663 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7665 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7666 The interface is as follows:
7667 Applications can use
7668 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7669 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7670 "off" is now the default.
7671 The library internally uses
7672 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7673 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7674 to disable memory-checking temporarily.
7676 Some inconsistent states that previously were possible (and were
7677 even the default) are now avoided.
7679 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7680 with each memory chunk allocated; this is occasionally more helpful
7681 than just having a counter.
7683 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7685 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7689 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7690 which largely parallels "options", but is for changing API behaviour,
7691 whereas "options" are about protocol behaviour.
7692 Initial "mode" flags are:
7694 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7695 a single record has been written.
7696 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7697 retries use the same buffer location.
7698 (But all of the contents must be
7702 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7705 *) Fix problems with no-hmac etc.
7706 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7708 *) New functions RSA_get_default_method(), RSA_set_method() and
7709 RSA_get_method(). These allows replacement of RSA_METHODs without having
7710 to mess around with the internals of an RSA structure.
7713 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7714 Also really enable memory leak checks in openssl.c and in some
7716 [Chad C. Mulligan, Bodo Moeller]
7718 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7719 up the length of negative integers. This has now been simplified to just
7720 store the length when it is first determined and use it later, rather
7721 than trying to keep track of where data is copied and updating it to
7723 [Steve Henson, reported by Brien Wheeler
7724 <bwheeler@authentica-security.com>]
7726 *) Add a new function PKCS7_signatureVerify. This allows the verification
7727 of a PKCS#7 signature but with the signing certificate passed to the
7728 function itself. This contrasts with PKCS7_dataVerify which assumes the
7729 certificate is present in the PKCS#7 structure. This isn't always the
7730 case: certificates can be omitted from a PKCS#7 structure and be
7731 distributed by "out of band" means (such as a certificate database).
7734 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7735 function prototypes in pem.h, also change util/mkdef.pl to add the
7736 necessary function names.
7739 *) mk1mf.pl (used by Windows builds) did not properly read the
7740 options set by Configure in the top level Makefile, and Configure
7741 was not even able to write more than one option correctly.
7742 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7745 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7746 file to be loaded from a BIO or FILE pointer. The BIO version will
7747 for example allow memory BIOs to contain config info.
7750 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7751 Whoever hopes to achieve shared-library compatibility across versions
7752 must use this, not the compile-time macro.
7753 (Exercise 0.9.4: Which is the minimum library version required by
7755 Note: All this applies only to multi-threaded programs, others don't
7759 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7760 through a BIO pair triggered the default case, i.e.
7761 SSLerr(...,SSL_R_UNKNOWN_STATE).
7764 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7765 can use the SSL library even if none of the specific BIOs is
7769 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7770 for the encoded length.
7771 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7773 *) Add initial documentation of the X509V3 functions.
7776 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7777 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7778 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7779 secure PKCS#8 private key format with a high iteration count.
7782 *) Fix determination of Perl interpreter: A perl or perl5
7783 _directory_ in $PATH was also accepted as the interpreter.
7784 [Ralf S. Engelschall]
7786 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7787 wrong with it but it was very old and did things like calling
7788 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7792 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7793 to use the new extension code.
7796 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7797 with macros. This should make it easier to change their form, add extra
7798 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7802 *) Add to configuration table a new entry that can specify an alternative
7803 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7804 according to Mark Crispin <MRC@Panda.COM>.
7808 *) DES CBC did not update the IV. Weird.
7811 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7812 Changing the behaviour of the former might break existing programs --
7813 where IV updating is needed, des_ncbc_encrypt can be used.
7816 *) When bntest is run from "make test" it drives bc to check its
7817 calculations, as well as internally checking them. If an internal check
7818 fails, it needs to cause bc to give a non-zero result or make test carries
7819 on without noticing the failure. Fixed.
7822 *) DES library cleanups.
7825 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7826 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7827 ciphers. NOTE: although the key derivation function has been verified
7828 against some published test vectors it has not been extensively tested
7829 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7833 *) Instead of "mkdir -p", which is not fully portable, use new
7834 Perl script "util/mkdir-p.pl".
7837 *) Rewrite the way password based encryption (PBE) is handled. It used to
7838 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7839 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7840 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7841 the 'parameter' field of the AlgorithmIdentifier is passed to the
7842 underlying key generation function so it must do its own ASN1 parsing.
7843 This has also changed the EVP_PBE_CipherInit() function which now has a
7844 'parameter' argument instead of literal salt and iteration count values
7845 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7848 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7849 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7850 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7851 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7852 value was just used as a "magic string" and not used directly its
7853 value doesn't matter.
7856 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7860 *) "linux-sparc64" configuration (ultrapenguin).
7861 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7862 "linux-sparc" configuration.
7863 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7865 *) config now generates no-xxx options for missing ciphers.
7868 *) Support the EBCDIC character set (work in progress).
7869 File ebcdic.c not yet included because it has a different license.
7870 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7872 *) Support BS2000/OSD-POSIX.
7873 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7875 *) Make callbacks for key generation use void * instead of char *.
7878 *) Make S/MIME samples compile (not yet tested).
7881 *) Additional typesafe stacks.
7884 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7888 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7890 *) New configuration variant "sco5-gcc".
7892 *) Updated some demos.
7893 [Sean O Riordain, Wade Scholine]
7895 *) Add missing BIO_free at exit of pkcs12 application.
7898 *) Fix memory leak in conf.c.
7901 *) Updates for Win32 to assembler version of MD5.
7904 *) Set #! path to perl in apps/der_chop to where we found it
7905 instead of using a fixed path.
7908 *) SHA library changes for irix64-mips4-cc.
7911 *) Improvements for VMS support.
7915 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7917 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7918 This also avoids the problems with SC4.2 and unpatched SC5.
7919 [Andy Polyakov <appro@fy.chalmers.se>]
7921 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7922 These are required because of the typesafe stack would otherwise break
7923 existing code. If old code used a structure member which used to be STACK
7924 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7925 sk_num or sk_value it would produce an error because the num, data members
7926 are not present in STACK_OF. Now it just produces a warning. sk_set
7927 replaces the old method of assigning a value to sk_value
7928 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7929 that does this will no longer work (and should use sk_set instead) but
7930 this could be regarded as a "questionable" behaviour anyway.
7933 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7934 correctly handle encrypted S/MIME data.
7937 *) Change type of various DES function arguments from des_cblock
7938 (which means, in function argument declarations, pointer to char)
7939 to des_cblock * (meaning pointer to array with 8 char elements),
7940 which allows the compiler to do more typechecking; it was like
7941 that back in SSLeay, but with lots of ugly casts.
7943 Introduce new type const_des_cblock.
7946 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7947 problems: find RecipientInfo structure that matches recipient certificate
7948 and initialise the ASN1 structures properly based on passed cipher.
7951 *) Belatedly make the BN tests actually check the results.
7954 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7955 to and from BNs: it was completely broken. New compilation option
7956 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7957 key elements as negative integers.
7960 *) Reorganize and speed up MD5.
7961 [Andy Polyakov <appro@fy.chalmers.se>]
7964 [Richard Levitte <richard@levitte.org>]
7966 *) New option -out to asn1parse to allow the parsed structure to be
7967 output to a file. This is most useful when combined with the -strparse
7968 option to examine the output of things like OCTET STRINGS.
7971 *) Make SSL library a little more fool-proof by not requiring any longer
7972 that SSL_set_{accept,connect}_state be called before
7973 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7974 in many applications because usually everything *appeared* to work as
7975 intended anyway -- now it really works as intended).
7978 *) Move openssl.cnf out of lib/.
7981 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7982 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7983 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7984 [Ralf S. Engelschall]
7986 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7987 handle PKCS#7 enveloped data properly.
7988 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7990 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7991 copying pointers. The cert_st handling is changed by this in
7992 various ways (and thus what used to be known as ctx->default_cert
7993 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7994 any longer when s->cert does not give us what we need).
7995 ssl_cert_instantiate becomes obsolete by this change.
7996 As soon as we've got the new code right (possibly it already is?),
7997 we have solved a couple of bugs of the earlier code where s->cert
7998 was used as if it could not have been shared with other SSL structures.
8000 Note that using the SSL API in certain dirty ways now will result
8001 in different behaviour than observed with earlier library versions:
8002 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8003 does not influence s as it used to.
8005 In order to clean up things more thoroughly, inside SSL_SESSION
8006 we don't use CERT any longer, but a new structure SESS_CERT
8007 that holds per-session data (if available); currently, this is
8008 the peer's certificate chain and, for clients, the server's certificate
8009 and temporary key. CERT holds only those values that can have
8010 meaningful defaults in an SSL_CTX.
8013 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8014 from the internal representation. Various PKCS#7 fixes: remove some
8015 evil casts and set the enc_dig_alg field properly based on the signing
8019 *) Allow PKCS#12 password to be set from the command line or the
8020 environment. Let 'ca' get its config file name from the environment
8021 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8025 *) Allow certificate policies extension to use an IA5STRING for the
8026 organization field. This is contrary to the PKIX definition but
8027 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8031 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8032 without disallowing inline assembler and the like for non-pedantic builds.
8035 *) Support Borland C++ builder.
8036 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8041 *) SHA-1 cleanups and performance enhancements.
8042 [Andy Polyakov <appro@fy.chalmers.se>]
8044 *) Sparc v8plus assembler for the bignum library.
8045 [Andy Polyakov <appro@fy.chalmers.se>]
8047 *) Accept any -xxx and +xxx compiler options in Configure.
8050 *) Update HPUX configuration.
8053 *) Add missing sk_<type>_unshift() function to safestack.h
8054 [Ralf S. Engelschall]
8056 *) New function SSL_CTX_use_certificate_chain_file that sets the
8057 "extra_cert"s in addition to the certificate. (This makes sense
8058 only for "PEM" format files, as chains as a whole are not
8062 *) Support verify_depth from the SSL API.
8063 x509_vfy.c had what can be considered an off-by-one-error:
8064 Its depth (which was not part of the external interface)
8065 was actually counting the number of certificates in a chain;
8066 now it really counts the depth.
8069 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8070 instead of X509err, which often resulted in confusing error
8071 messages since the error codes are not globally unique
8072 (e.g. an alleged error in ssl3_accept when a certificate
8073 didn't match the private key).
8075 *) New function SSL_CTX_set_session_id_context that allows to set a default
8076 value (so that you don't need SSL_set_session_id_context for each
8077 connection using the SSL_CTX).
8080 *) OAEP decoding bug fix.
8083 *) Support INSTALL_PREFIX for package builders, as proposed by
8087 *) New Configure options "threads" and "no-threads". For systems
8088 where the proper compiler options are known (currently Solaris
8089 and Linux), "threads" is the default.
8092 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8095 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8096 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8097 such as /usr/local/bin.
8100 *) "make linux-shared" to build shared libraries.
8101 [Niels Poppe <niels@netbox.org>]
8103 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8106 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8107 extension adding in x509 utility.
8110 *) Remove NOPROTO sections and error code comments.
8113 *) Partial rewrite of the DEF file generator to now parse the ANSI
8117 *) New Configure options --prefix=DIR and --openssldir=DIR.
8120 *) Complete rewrite of the error code script(s). It is all now handled
8121 by one script at the top level which handles error code gathering,
8122 header rewriting and C source file generation. It should be much better
8123 than the old method: it now uses a modified version of Ulf's parser to
8124 read the ANSI prototypes in all header files (thus the old K&R definitions
8125 aren't needed for error creation any more) and do a better job of
8126 translating function codes into names. The old 'ASN1 error code imbedded
8127 in a comment' is no longer necessary and it doesn't use .err files which
8128 have now been deleted. Also the error code call doesn't have to appear all
8129 on one line (which resulted in some large lines...).
8132 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8135 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8136 0 (which usually indicates a closed connection), but continue reading.
8139 *) Fix some race conditions.
8142 *) Add support for CRL distribution points extension. Add Certificate
8143 Policies and CRL distribution points documentation.
8146 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8149 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8150 8 of keying material. Merlin has also confirmed interop with this fix
8151 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8152 [Merlin Hughes <merlin@baltimore.ie>]
8154 *) Fix lots of warnings.
8155 [Richard Levitte <levitte@stacken.kth.se>]
8157 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8158 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8159 [Richard Levitte <levitte@stacken.kth.se>]
8161 *) Fix problems with sizeof(long) == 8.
8162 [Andy Polyakov <appro@fy.chalmers.se>]
8164 *) Change functions to ANSI C.
8167 *) Fix typos in error codes.
8168 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8170 *) Remove defunct assembler files from Configure.
8173 *) SPARC v8 assembler BIGNUM implementation.
8174 [Andy Polyakov <appro@fy.chalmers.se>]
8176 *) Support for Certificate Policies extension: both print and set.
8177 Various additions to support the r2i method this uses.
8180 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8181 return a const string when you are expecting an allocated buffer.
8184 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8185 types DirectoryString and DisplayText.
8188 *) Add code to allow r2i extensions to access the configuration database,
8189 add an LHASH database driver and add several ctx helper functions.
8192 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8193 fail when they extended the size of a BIGNUM.
8196 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8197 support typesafe stack.
8200 *) Fix typo in SSL_[gs]et_options().
8201 [Nils Frostberg <nils@medcom.se>]
8203 *) Delete various functions and files that belonged to the (now obsolete)
8204 old X509V3 handling code.
8207 *) New Configure option "rsaref".
8210 *) Don't auto-generate pem.h.
8213 *) Introduce type-safe ASN.1 SETs.
8216 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8217 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8219 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8220 that links with OpenSSL (well at least cause lots of warnings), but fear
8221 not: the conversion is trivial, and it eliminates loads of evil casts. A
8222 few STACKed things have been converted already. Feel free to convert more.
8223 In the fullness of time, I'll do away with the STACK type altogether.
8226 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8227 specified in <certfile> by updating the entry in the index.txt file.
8228 This way one no longer has to edit the index.txt file manually for
8229 revoking a certificate. The -revoke option does the gory details now.
8230 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8232 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8233 `-text' option at all and this way the `-noout -text' combination was
8234 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8235 [Ralf S. Engelschall]
8237 *) Make sure a corresponding plain text error message exists for the
8238 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8239 verify callback function determined that a certificate was revoked.
8240 [Ralf S. Engelschall]
8242 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8243 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8244 all available cipers including rc5, which was forgotten until now.
8245 In order to let the testing shell script know which algorithms
8246 are available, a new (up to now undocumented) command
8247 "openssl list-cipher-commands" is used.
8250 *) Bugfix: s_client occasionally would sleep in select() when
8251 it should have checked SSL_pending() first.
8254 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8255 the raw DSA values prior to ASN.1 encoding.
8258 *) Tweaks to Configure
8259 [Niels Poppe <niels@netbox.org>]
8261 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8265 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8268 *) New config option to avoid instructions that are illegal on the 80386.
8269 The default code is faster, but requires at least a 486.
8272 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8273 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8274 same as SSL2_VERSION anyway.
8277 *) New "-showcerts" option for s_client.
8280 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8281 application. Various cleanups and fixes.
8284 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8285 modify error routines to work internally. Add error codes and PBE init
8286 to library startup routines.
8289 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8290 packing functions to asn1 and evp. Changed function names and error
8291 codes along the way.
8294 *) PKCS12 integration: and so it begins... First of several patches to
8295 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8296 objects to objects.h
8299 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8300 and display support for Thawte strong extranet extension.
8303 *) Add LinuxPPC support.
8304 [Jeff Dubrule <igor@pobox.org>]
8306 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8307 bn_div_words in alpha.s.
8308 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8310 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8311 OAEP isn't supported when OpenSSL is built with RSAref.
8312 [Ulf Moeller <ulf@fitug.de>]
8314 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8315 so they no longer are missing under -DNOPROTO.
8316 [Soren S. Jorvang <soren@t.dk>]
8319 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8321 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8322 doesn't work when the session is reused. Coming soon!
8325 *) Fix a security hole, that allows sessions to be reused in the wrong
8326 context thus bypassing client cert protection! All software that uses
8327 client certs and session caches in multiple contexts NEEDS PATCHING to
8328 allow session reuse! A fuller solution is in the works.
8329 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8331 *) Some more source tree cleanups (removed obsolete files
8332 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8333 permission on "config" script to be executable) and a fix for the INSTALL
8335 [Ulf Moeller <ulf@fitug.de>]
8337 *) Remove some legacy and erroneous uses of malloc, free instead of
8339 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8341 *) Make rsa_oaep_test return non-zero on error.
8342 [Ulf Moeller <ulf@fitug.de>]
8344 *) Add support for native Solaris shared libraries. Configure
8345 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8346 if someone would make that last step automatic.
8347 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8349 *) ctx_size was not built with the right compiler during "make links". Fixed.
8352 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8353 except NULL ciphers". This means the default cipher list will no longer
8354 enable NULL ciphers. They need to be specifically enabled e.g. with
8355 the string "DEFAULT:eNULL".
8358 *) Fix to RSA private encryption routines: if p < q then it would
8359 occasionally produce an invalid result. This will only happen with
8360 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8363 *) Be less restrictive and allow also `perl util/perlpath.pl
8364 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8365 because this way one can also use an interpreter named `perl5' (which is
8366 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8367 installed as `perl').
8368 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8370 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8371 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8373 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8374 advapi32.lib to Win32 build and change the pem test comparision
8375 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8376 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8377 and crypto/des/ede_cbcm_enc.c.
8380 *) DES quad checksum was broken on big-endian architectures. Fixed.
8383 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8384 Win32 test batch file so it (might) work again. The Win32 test batch file
8385 is horrible: I feel ill....
8388 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8389 in e_os.h. Audit of header files to check ANSI and non ANSI
8390 sections: 10 functions were absent from non ANSI section and not exported
8391 from Windows DLLs. Fixed up libeay.num for new functions.
8394 *) Make `openssl version' output lines consistent.
8395 [Ralf S. Engelschall]
8397 *) Fix Win32 symbol export lists for BIO functions: Added
8398 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8399 to ms/libeay{16,32}.def.
8400 [Ralf S. Engelschall]
8402 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8403 fine under Unix and passes some trivial tests I've now added. But the
8404 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8405 added to make sure no one expects that this stuff really works in the
8406 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8407 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8409 [Ralf S. Engelschall]
8411 *) Fix the generation of two part addresses in perl.
8412 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8414 *) Add config entry for Linux on MIPS.
8415 [John Tobey <jtobey@channel1.com>]
8417 *) Make links whenever Configure is run, unless we are on Windoze.
8420 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8421 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8425 *) Add a useful kludge to allow package maintainers to specify compiler and
8426 other platforms details on the command line without having to patch the
8427 Configure script everytime: One now can use ``perl Configure
8428 <id>:<details>'', i.e. platform ids are allowed to have details appended
8429 to them (seperated by colons). This is treated as there would be a static
8430 pre-configured entry in Configure's %table under key <id> with value
8431 <details> and ``perl Configure <id>'' is called. So, when you want to
8432 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8433 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8434 now, which overrides the FreeBSD-elf entry on-the-fly.
8435 [Ralf S. Engelschall]
8437 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8440 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8441 on the `perl Configure ...' command line. This way one can compile
8442 OpenSSL libraries with Position Independent Code (PIC) which is needed
8443 for linking it into DSOs.
8444 [Ralf S. Engelschall]
8446 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8450 *) Cleaned up the LICENSE document: The official contact for any license
8451 questions now is the OpenSSL core team under openssl-core@openssl.org.
8452 And add a paragraph about the dual-license situation to make sure people
8453 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8454 to the OpenSSL toolkit.
8455 [Ralf S. Engelschall]
8457 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8458 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8459 Additonally cleaned up the `make links' target: Remove unnecessary
8460 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8461 to speed processing and no longer clutter the display with confusing
8462 stuff. Instead only the actually done links are displayed.
8463 [Ralf S. Engelschall]
8465 *) Permit null encryption ciphersuites, used for authentication only. It used
8466 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8467 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8471 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8472 signed attributes when verifying signatures (this would break them),
8473 the detached data encoding was wrong and public keys obtained using
8474 X509_get_pubkey() weren't freed.
8477 *) Add text documentation for the BUFFER functions. Also added a work around
8478 to a Win95 console bug. This was triggered by the password read stuff: the
8479 last character typed gets carried over to the next fread(). If you were
8480 generating a new cert request using 'req' for example then the last
8481 character of the passphrase would be CR which would then enter the first
8485 *) Added the new `Includes OpenSSL Cryptography Software' button as
8486 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8487 button and can be used by applications based on OpenSSL to show the
8488 relationship to the OpenSSL project.
8489 [Ralf S. Engelschall]
8491 *) Remove confusing variables in function signatures in files
8492 ssl/ssl_lib.c and ssl/ssl.h.
8493 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8495 *) Don't install bss_file.c under PREFIX/include/
8496 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8498 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8499 functions that return function pointers and has support for NT specific
8500 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8501 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8502 unsigned to signed types: this was killing the Win32 compile.
8505 *) Add new certificate file to stack functions,
8506 SSL_add_dir_cert_subjects_to_stack() and
8507 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8508 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8509 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8510 This means that Apache-SSL and similar packages don't have to mess around
8511 to add as many CAs as they want to the preferred list.
8514 *) Experiment with doxygen documentation. Currently only partially applied to
8516 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8517 openssl.doxy as the configuration file.
8520 *) Get rid of remaining C++-style comments which strict C compilers hate.
8521 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8523 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8524 compiled in by default: it has problems with large keys.
8527 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8528 DH private keys and/or callback functions which directly correspond to
8529 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8530 is needed for applications which have to configure certificates on a
8531 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8533 For the RSA certificate situation is makes no difference, but
8534 for the DSA certificate situation this fixes the "no shared cipher"
8535 problem where the OpenSSL cipher selection procedure failed because the
8536 temporary keys were not overtaken from the context and the API provided
8537 no way to reconfigure them.
8538 The new functions now let applications reconfigure the stuff and they
8539 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8540 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8541 non-public-API function ssl_cert_instantiate() is used as a helper
8542 function and also to reduce code redundancy inside ssl_rsa.c.
8543 [Ralf S. Engelschall]
8545 *) Move s_server -dcert and -dkey options out of the undocumented feature
8546 area because they are useful for the DSA situation and should be
8547 recognized by the users.
8548 [Ralf S. Engelschall]
8550 *) Fix the cipher decision scheme for export ciphers: the export bits are
8551 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8552 SSL_EXP_MASK. So, the original variable has to be used instead of the
8553 already masked variable.
8554 [Richard Levitte <levitte@stacken.kth.se>]
8556 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8557 [Richard Levitte <levitte@stacken.kth.se>]
8559 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8560 from `int' to `unsigned int' because it's a length and initialized by
8561 EVP_DigestFinal() which expects an `unsigned int *'.
8562 [Richard Levitte <levitte@stacken.kth.se>]
8564 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8565 script. Instead use the usual Shell->Perl transition trick.
8566 [Ralf S. Engelschall]
8568 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8569 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8570 -noout -modulus' as it's already the case for `openssl rsa -noout
8571 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8572 currently the public key is printed (a decision which was already done by
8573 `openssl dsa -modulus' in the past) which serves a similar purpose.
8574 Additionally the NO_RSA no longer completely removes the whole -modulus
8575 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8577 [Ralf S. Engelschall]
8579 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8580 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8581 [Arne Ansper <arne@ats.cyber.ee>]
8583 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8584 to be added. Now both 'req' and 'ca' can use new objects defined in the
8588 *) Add cool BIO that does syslog (or event log on NT).
8589 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8591 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8592 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8593 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8594 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8597 *) Add preliminary config info for new extension code.
8600 *) Make RSA_NO_PADDING really use no padding.
8601 [Ulf Moeller <ulf@fitug.de>]
8603 *) Generate errors when private/public key check is done.
8606 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8607 for some CRL extensions and new objects added.
8610 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8611 key usage extension and fuller support for authority key id.
8614 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8615 padding method for RSA, which is recommended for new applications in PKCS
8616 #1 v2.0 (RFC 2437, October 1998).
8617 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8618 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8619 against Bleichbacher's attack on RSA.
8620 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8623 *) Updates to the new SSL compression code
8624 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8626 *) Fix so that the version number in the master secret, when passed
8627 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8628 (because the server will not accept higher), that the version number
8629 is 0x03,0x01, not 0x03,0x00
8630 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8632 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8633 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8634 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8637 *) Support for RAW extensions where an arbitrary extension can be
8638 created by including its DER encoding. See apps/openssl.cnf for
8642 *) Make sure latest Perl versions don't interpret some generated C array
8643 code as Perl array code in the crypto/err/err_genc.pl script.
8644 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8646 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8647 not many people have the assembler. Various Win32 compilation fixes and
8648 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8652 *) Modify configure script 'Configure' to automatically create crypto/date.h
8653 file under Win32 and also build pem.h from pem.org. New script
8654 util/mkfiles.pl to create the MINFO file on environments that can't do a
8655 'make files': perl util/mkfiles.pl >MINFO should work.
8658 *) Major rework of DES function declarations, in the pursuit of correctness
8659 and purity. As a result, many evil casts evaporated, and some weirdness,
8660 too. You may find this causes warnings in your code. Zapping your evil
8661 casts will probably fix them. Mostly.
8664 *) Fix for a typo in asn1.h. Bug fix to object creation script
8665 obj_dat.pl. It considered a zero in an object definition to mean
8666 "end of object": none of the objects in objects.h have any zeros
8667 so it wasn't spotted.
8668 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8670 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8671 Masking (CBCM). In the absence of test vectors, the best I have been able
8672 to do is check that the decrypt undoes the encrypt, so far. Send me test
8673 vectors if you have them.
8676 *) Correct calculation of key length for export ciphers (too much space was
8677 allocated for null ciphers). This has not been tested!
8680 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8681 message is now correct (it understands "crypto" and "ssl" on its
8682 command line). There is also now an "update" option. This will update
8683 the util/ssleay.num and util/libeay.num files with any new functions.
8685 perl util/mkdef.pl crypto ssl update
8686 it will update them.
8689 *) Overhauled the Perl interface (perl/*):
8690 - ported BN stuff to OpenSSL's different BN library
8691 - made the perl/ source tree CVS-aware
8692 - renamed the package from SSLeay to OpenSSL (the files still contain
8693 their history because I've copied them in the repository)
8694 - removed obsolete files (the test scripts will be replaced
8695 by better Test::Harness variants in the future)
8696 [Ralf S. Engelschall]
8698 *) First cut for a very conservative source tree cleanup:
8699 1. merge various obsolete readme texts into doc/ssleay.txt
8700 where we collect the old documents and readme texts.
8701 2. remove the first part of files where I'm already sure that we no
8702 longer need them because of three reasons: either they are just temporary
8703 files which were left by Eric or they are preserved original files where
8704 I've verified that the diff is also available in the CVS via "cvs diff
8705 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8706 the crypto/md/ stuff).
8707 [Ralf S. Engelschall]
8709 *) More extension code. Incomplete support for subject and issuer alt
8710 name, issuer and authority key id. Change the i2v function parameters
8711 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8712 what that's for :-) Fix to ASN1 macro which messed up
8713 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8716 *) Preliminary support for ENUMERATED type. This is largely copied from the
8720 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8721 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8723 *) Make sure `make rehash' target really finds the `openssl' program.
8724 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8726 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8727 like to hear about it if this slows down other processors.
8730 *) Add CygWin32 platform information to Configure script.
8731 [Alan Batie <batie@aahz.jf.intel.com>]
8733 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8734 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8736 *) New program nseq to manipulate netscape certificate sequences
8739 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8743 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8744 but the BN code had some problems that would cause failures when
8745 doing certificate verification and some other functions.
8746 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8748 *) Add ASN1 and PEM code to support netscape certificate sequences.
8751 *) Add ASN1 and PEM code to support netscape certificate sequences.
8754 *) Add several PKIX and private extended key usage OIDs.
8757 *) Modify the 'ca' program to handle the new extension code. Modify
8758 openssl.cnf for new extension format, add comments.
8761 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8762 and add a sample to openssl.cnf so req -x509 now adds appropriate
8766 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8767 error code, add initial support to X509_print() and x509 application.
8770 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8771 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8772 stuff is currently isolated and isn't even compiled yet.
8775 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8776 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8777 Removed the versions check from X509 routines when loading extensions:
8778 this allows certain broken certificates that don't set the version
8779 properly to be processed.
8782 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8783 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8784 can still be regenerated with "make depend".
8787 *) Spelling mistake in C version of CAST-128.
8788 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8790 *) Changes to the error generation code. The perl script err-code.pl
8791 now reads in the old error codes and retains the old numbers, only
8792 adding new ones if necessary. It also only changes the .err files if new
8793 codes are added. The makefiles have been modified to only insert errors
8794 when needed (to avoid needlessly modifying header files). This is done
8795 by only inserting errors if the .err file is newer than the auto generated
8796 C file. To rebuild all the error codes from scratch (the old behaviour)
8797 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8798 or delete all the .err files.
8801 *) CAST-128 was incorrectly implemented for short keys. The C version has
8802 been fixed, but is untested. The assembler versions are also fixed, but
8803 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8804 to regenerate it if needed.
8805 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8806 Hagino <itojun@kame.net>]
8808 *) File was opened incorrectly in randfile.c.
8809 [Ulf Möller <ulf@fitug.de>]
8811 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8812 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8813 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8814 al: it's just almost always a UTCTime. Note this patch adds new error
8815 codes so do a "make errors" if there are problems.
8818 *) Correct Linux 1 recognition in config.
8819 [Ulf Möller <ulf@fitug.de>]
8821 *) Remove pointless MD5 hash when using DSA keys in ca.
8822 [Anonymous <nobody@replay.com>]
8824 *) Generate an error if given an empty string as a cert directory. Also
8825 generate an error if handed NULL (previously returned 0 to indicate an
8826 error, but didn't set one).
8827 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8829 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8832 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8833 parameters. This was causing a warning which killed off the Win32 compile.
8836 *) Remove C++ style comments from crypto/bn/bn_local.h.
8837 [Neil Costigan <neil.costigan@celocom.com>]
8839 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8840 based on a text string, looking up short and long names and finally
8841 "dot" format. The "dot" format stuff didn't work. Added new function
8842 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8843 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8844 OID is not part of the table.
8847 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8848 X509_LOOKUP_by_alias().
8851 *) Sort openssl functions by name.
8854 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8855 encryption from sample DSA keys (in case anyone is interested the password
8859 *) Make _all_ *_free functions accept a NULL pointer.
8860 [Frans Heymans <fheymans@isaserver.be>]
8862 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8864 [Anonymous <nobody@replay.com>]
8866 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8867 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8869 *) Don't blow it for numeric -newkey arguments to apps/req.
8870 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8872 *) Temp key "for export" tests were wrong in s3_srvr.c.
8873 [Anonymous <nobody@replay.com>]
8875 *) Add prototype for temp key callback functions
8876 SSL_CTX_set_tmp_{rsa,dh}_callback().
8879 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8880 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8883 *) X509_name_add_entry() freed the wrong thing after an error.
8884 [Arne Ansper <arne@ats.cyber.ee>]
8886 *) rsa_eay.c would attempt to free a NULL context.
8887 [Arne Ansper <arne@ats.cyber.ee>]
8889 *) BIO_s_socket() had a broken should_retry() on Windoze.
8890 [Arne Ansper <arne@ats.cyber.ee>]
8892 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8893 [Arne Ansper <arne@ats.cyber.ee>]
8895 *) Make sure the already existing X509_STORE->depth variable is initialized
8896 in X509_STORE_new(), but document the fact that this variable is still
8897 unused in the certificate verification process.
8898 [Ralf S. Engelschall]
8900 *) Fix the various library and apps files to free up pkeys obtained from
8901 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8904 *) Fix reference counting in X509_PUBKEY_get(). This makes
8905 demos/maurice/example2.c work, amongst others, probably.
8906 [Steve Henson and Ben Laurie]
8908 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8909 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8910 are no longer created. This way we have a single and consistent command
8911 line interface `openssl <command>', similar to `cvs <command>'.
8912 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8914 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8915 BIT STRING wrapper always have zero unused bits.
8918 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8921 *) Make the top-level INSTALL documentation easier to understand.
8924 *) Makefiles updated to exit if an error occurs in a sub-directory
8925 make (including if user presses ^C) [Paul Sutton]
8927 *) Make Montgomery context stuff explicit in RSA data structure.
8930 *) Fix build order of pem and err to allow for generated pem.h.
8933 *) Fix renumbering bug in X509_NAME_delete_entry().
8936 *) Enhanced the err-ins.pl script so it makes the error library number
8937 global and can add a library name. This is needed for external ASN1 and
8938 other error libraries.
8941 *) Fixed sk_insert which never worked properly.
8944 *) Fix ASN1 macros so they can handle indefinite length construted
8945 EXPLICIT tags. Some non standard certificates use these: they can now
8949 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8950 into a single doc/ssleay.txt bundle. This way the information is still
8951 preserved but no longer messes up this directory. Now it's new room for
8952 the new set of documenation files.
8953 [Ralf S. Engelschall]
8955 *) SETs were incorrectly DER encoded. This was a major pain, because they
8956 shared code with SEQUENCEs, which aren't coded the same. This means that
8957 almost everything to do with SETs or SEQUENCEs has either changed name or
8958 number of arguments.
8959 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8961 *) Fix test data to work with the above.
8964 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8965 was already fixed by Eric for 0.9.1 it seems.
8966 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8968 *) Autodetect FreeBSD3.
8971 *) Fix various bugs in Configure. This affects the following platforms:
8975 unixware-2.0-pentium
8979 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8980 before they are needed.
8983 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8987 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8989 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8990 changed SSLeay to OpenSSL in version strings.
8991 [Ralf S. Engelschall]
8993 *) Some fixups to the top-level documents.
8996 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8997 because the symlink to include/ was missing.
8998 [Ralf S. Engelschall]
9000 *) Incorporated the popular no-RSA/DSA-only patches
9001 which allow to compile a RSA-free SSLeay.
9002 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9004 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9005 when "ssleay" is still not found.
9006 [Ralf S. Engelschall]
9008 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9009 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9011 *) Updated the README file.
9012 [Ralf S. Engelschall]
9014 *) Added various .cvsignore files in the CVS repository subdirs
9015 to make a "cvs update" really silent.
9016 [Ralf S. Engelschall]
9018 *) Recompiled the error-definition header files and added
9019 missing symbols to the Win32 linker tables.
9020 [Ralf S. Engelschall]
9022 *) Cleaned up the top-level documents;
9023 o new files: CHANGES and LICENSE
9024 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9025 o merged COPYRIGHT into LICENSE
9026 o removed obsolete TODO file
9027 o renamed MICROSOFT to INSTALL.W32
9028 [Ralf S. Engelschall]
9030 *) Removed dummy files from the 0.9.1b source tree:
9031 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9032 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9033 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9034 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9035 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9036 [Ralf S. Engelschall]
9038 *) Added various platform portability fixes.
9041 *) The Genesis of the OpenSSL rpject:
9042 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9043 Young and Tim J. Hudson created while they were working for C2Net until
9045 [The OpenSSL Project]
9048 Changes between 0.9.0b and 0.9.1b [not released]
9050 *) Updated a few CA certificates under certs/
9053 *) Changed some BIGNUM api stuff.
9056 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9057 DGUX x86, Linux Alpha, etc.
9060 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9061 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9065 *) Add -strparse option to asn1pars program which parses nested
9067 [Dr Stephen Henson <shenson@bigfoot.com>]
9069 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9072 *) DSA fix for "ca" program.
9075 *) Added "-genkey" option to "dsaparam" program.
9078 *) Added RIPE MD160 (rmd160) message digest.
9081 *) Added -a (all) option to "ssleay version" command.
9084 *) Added PLATFORM define which is the id given to Configure.
9087 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9090 *) Extended the ASN.1 parser routines.
9093 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9096 *) Added a BN_CTX to the BN library.
9099 *) Fixed the weak key values in DES library
9102 *) Changed API in EVP library for cipher aliases.
9105 *) Added support for RC2/64bit cipher.
9108 *) Converted the lhash library to the crypto/mem.c functions.
9111 *) Added more recognized ASN.1 object ids.
9114 *) Added more RSA padding checks for SSL/TLS.
9117 *) Added BIO proxy/filter functionality.
9120 *) Added extra_certs to SSL_CTX which can be used
9121 send extra CA certificates to the client in the CA cert chain sending
9122 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9125 *) Now Fortezza is denied in the authentication phase because
9126 this is key exchange mechanism is not supported by SSLeay at all.
9129 *) Additional PKCS1 checks.
9132 *) Support the string "TLSv1" for all TLS v1 ciphers.
9135 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9136 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9139 *) Fixed a few memory leaks.
9142 *) Fixed various code and comment typos.
9145 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9146 bytes sent in the client random.
9147 [Edward Bishop <ebishop@spyglass.com>]