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 *) Don't check self signed certificate signatures in X509_verify_cert():
797 it just wastes time without adding any security. As a useful side effect
798 self signed root CAs with non-FIPS digests are now usable in FIPS mode.
801 *) In dtls1_process_out_of_seq_message() the check if the current message
802 is already buffered was missing. For every new message was memory
803 allocated, allowing an attacker to perform an denial of service attack
804 with sending out of seq handshake messages until there is no memory
805 left. Additionally every future messege was buffered, even if the
806 sequence number made no sense and would be part of another handshake.
807 So only messages with sequence numbers less than 10 in advance will be
809 [Robin Seggelmann, discovered by Daniel Mentz]
811 *) Records are buffered if they arrive with a future epoch to be
812 processed after finishing the corresponding handshake. There is
813 currently no limitation to this buffer allowing an attacker to perform
814 a DOS attack with sending records with future epochs until there is no
815 memory left. This patch adds the pqueue_size() function to detemine
816 the size of a buffer and limits the record buffer to 100 entries.
817 [Robin Seggelmann, discovered by Daniel Mentz]
819 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
820 parent structure is freed.
823 *) Handle non-blocking I/O properly in SSL_shutdown() call.
824 [Darryl Miles <darryl-mailinglists@netbauds.net>]
827 [Ilya O. <vrghost@gmail.com>]
829 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
831 *) Don't set val to NULL when freeing up structures, it is freed up by
832 underlying code. If sizeof(void *) > sizeof(long) this can result in
833 zeroing past the valid field. (CVE-2009-0789)
834 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
836 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
837 checked correctly. This would allow some invalid signed attributes to
838 appear to verify correctly. (CVE-2009-0591)
839 [Ivan Nestlerode <inestlerode@us.ibm.com>]
841 *) Reject UniversalString and BMPString types with invalid lengths. This
842 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
843 a legal length. (CVE-2009-0590)
846 *) Set S/MIME signing as the default purpose rather than setting it
847 unconditionally. This allows applications to override it at the store
851 *) Permit restricted recursion of ASN1 strings. This is needed in practice
852 to handle some structures.
855 *) Improve efficiency of mem_gets: don't search whole buffer each time
857 [Jeremy Shapiro <jnshapir@us.ibm.com>]
859 *) New -hex option for openssl rand.
862 *) Print out UTF8String and NumericString when parsing ASN1.
865 *) Support NumericString type for name components.
868 *) Allow CC in the environment to override the automatically chosen
869 compiler. Note that nothing is done to ensure flags work with the
873 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
875 *) Properly check EVP_VerifyFinal() and similar return values
877 [Ben Laurie, Bodo Moeller, Google Security Team]
879 *) Enable TLS extensions by default.
882 *) Allow the CHIL engine to be loaded, whether the application is
883 multithreaded or not. (This does not release the developer from the
884 obligation to set up the dynamic locking callbacks.)
885 [Sander Temme <sander@temme.net>]
887 *) Use correct exit code if there is an error in dgst command.
888 [Steve Henson; problem pointed out by Roland Dirlewanger]
890 *) Tweak Configure so that you need to say "experimental-jpake" to enable
891 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
894 *) Add experimental JPAKE support, including demo authentication in
895 s_client and s_server.
898 *) Set the comparison function in v3_addr_canonize().
899 [Rob Austein <sra@hactrn.net>]
901 *) Add support for XMPP STARTTLS in s_client.
902 [Philip Paeps <philip@freebsd.org>]
904 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
905 to ensure that even with this option, only ciphersuites in the
906 server's preference list will be accepted. (Note that the option
907 applies only when resuming a session, so the earlier behavior was
908 just about the algorithm choice for symmetric cryptography.)
911 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
913 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
914 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
917 *) The fix in 0.9.8c that supposedly got rid of unsafe
918 double-checked locking was incomplete for RSA blinding,
919 addressing just one layer of what turns out to have been
920 doubly unsafe triple-checked locking.
922 So now fix this for real by retiring the MONT_HELPER macro
923 in crypto/rsa/rsa_eay.c.
925 [Bodo Moeller; problem pointed out by Marius Schilder]
927 *) Various precautionary measures:
929 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
931 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
932 (NB: This would require knowledge of the secret session ticket key
933 to exploit, in which case you'd be SOL either way.)
935 - Change bn_nist.c so that it will properly handle input BIGNUMs
936 outside the expected range.
938 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
941 [Neel Mehta, Bodo Moeller]
943 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
944 the load fails. Useful for distros.
945 [Ben Laurie and the FreeBSD team]
947 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
950 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
953 *) Expand ENGINE to support engine supplied SSL client certificate functions.
955 This work was sponsored by Logica.
958 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
959 keystores. Support for SSL/TLS client authentication too.
960 Not compiled unless enable-capieng specified to Configure.
962 This work was sponsored by Logica.
965 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
966 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
967 attribute creation routines such as certifcate requests and PKCS#12
971 Changes between 0.9.8g and 0.9.8h [28 May 2008]
973 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
974 handshake which could lead to a cilent crash as found using the
975 Codenomicon TLS test suite (CVE-2008-1672)
976 [Steve Henson, Mark Cox]
978 *) Fix double free in TLS server name extensions which could lead to
979 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
982 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
984 Clear the error queue to ensure that error entries left from
985 older function calls do not interfere with the correct operation.
986 [Lutz Jaenicke, Erik de Castro Lopo]
988 *) Remove root CA certificates of commercial CAs:
990 The OpenSSL project does not recommend any specific CA and does not
991 have any policy with respect to including or excluding any CA.
992 Therefore it does not make any sense to ship an arbitrary selection
993 of root CA certificates with the OpenSSL software.
996 *) RSA OAEP patches to fix two separate invalid memory reads.
997 The first one involves inputs when 'lzero' is greater than
998 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
999 before the beginning of from). The second one involves inputs where
1000 the 'db' section contains nothing but zeroes (there is a one-byte
1001 invalid read after the end of 'db').
1002 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1004 *) Partial backport from 0.9.9-dev:
1006 Introduce bn_mul_mont (dedicated Montgomery multiplication
1007 procedure) as a candidate for BIGNUM assembler implementation.
1008 While 0.9.9-dev uses assembler for various architectures, only
1009 x86_64 is available by default here in the 0.9.8 branch, and
1010 32-bit x86 is available through a compile-time setting.
1012 To try the 32-bit x86 assembler implementation, use Configure
1013 option "enable-montasm" (which exists only for this backport).
1015 As "enable-montasm" for 32-bit x86 disclaims code stability
1016 anyway, in this constellation we activate additional code
1017 backported from 0.9.9-dev for further performance improvements,
1018 namely BN_from_montgomery_word. (To enable this otherwise,
1019 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1021 [Andy Polyakov (backport partially by Bodo Moeller)]
1023 *) Add TLS session ticket callback. This allows an application to set
1024 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1025 values. This is useful for key rollover for example where several key
1026 sets may exist with different names.
1029 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1030 This was broken until now in 0.9.8 releases, such that the only way
1031 a registered ENGINE could be used (assuming it initialises
1032 successfully on the host) was to explicitly set it as the default
1033 for the relevant algorithms. This is in contradiction with 0.9.7
1034 behaviour and the documentation. With this fix, when an ENGINE is
1035 registered into a given algorithm's table of implementations, the
1036 'uptodate' flag is reset so that auto-discovery will be used next
1037 time a new context for that algorithm attempts to select an
1039 [Ian Lister (tweaked by Geoff Thorpe)]
1041 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1042 implemention in the following ways:
1044 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1047 Lack of BER streaming support means one pass streaming processing is
1048 only supported if data is detached: setting the streaming flag is
1049 ignored for embedded content.
1051 CMS support is disabled by default and must be explicitly enabled
1052 with the enable-cms configuration option.
1055 *) Update the GMP engine glue to do direct copies between BIGNUM and
1056 mpz_t when openssl and GMP use the same limb size. Otherwise the
1057 existing "conversion via a text string export" trick is still used.
1058 [Paul Sheer <paulsheer@gmail.com>]
1060 *) Zlib compression BIO. This is a filter BIO which compressed and
1061 uncompresses any data passed through it.
1064 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1065 RFC3394 compatible AES key wrapping.
1068 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1069 sets string data without copying. X509_ALGOR_set0() and
1070 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1071 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1072 from an X509_ATTRIBUTE structure optionally checking it occurs only
1073 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1077 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1078 to get the expected BN_FLG_CONSTTIME behavior.
1079 [Bodo Moeller (Google)]
1083 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1084 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1085 - added some more tests to do_tests.pl
1086 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1087 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1088 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1089 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1090 - various changes to netware.pl to enable gcc-cross builds on Win32
1092 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1093 - various changes to fix missing prototype warnings
1094 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1095 - added AES, WHIRLPOOL and CPUID assembler code to build files
1096 - added missing AES assembler make rules to mk1mf.pl
1097 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1098 [Guenter Knauf <eflash@gmx.net>]
1100 *) Implement certificate status request TLS extension defined in RFC3546.
1101 A client can set the appropriate parameters and receive the encoded
1102 OCSP response via a callback. A server can query the supplied parameters
1103 and set the encoded OCSP response in the callback. Add simplified examples
1104 to s_client and s_server.
1107 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1109 *) Fix various bugs:
1110 + Binary incompatibility of ssl_ctx_st structure
1111 + DTLS interoperation with non-compliant servers
1112 + Don't call get_session_cb() without proposed session
1113 + Fix ia64 assembler code
1114 [Andy Polyakov, Steve Henson]
1116 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1118 *) DTLS Handshake overhaul. There were longstanding issues with
1119 OpenSSL DTLS implementation, which were making it impossible for
1120 RFC 4347 compliant client to communicate with OpenSSL server.
1121 Unfortunately just fixing these incompatibilities would "cut off"
1122 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1123 server keeps tolerating non RFC compliant syntax. The opposite is
1124 not true, 0.9.8f client can not communicate with earlier server.
1125 This update even addresses CVE-2007-4995.
1128 *) Changes to avoid need for function casts in OpenSSL: some compilers
1129 (gcc 4.2 and later) reject their use.
1130 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1133 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1134 RFC4507bis. The encrypted ticket format is an encrypted encoded
1135 SSL_SESSION structure, that way new session features are automatically
1138 If a client application caches session in an SSL_SESSION structure
1139 support is transparent because tickets are now stored in the encoded
1142 The SSL_CTX structure automatically generates keys for ticket
1143 protection in servers so again support should be possible
1144 with no application modification.
1146 If a client or server wishes to disable RFC4507 support then the option
1147 SSL_OP_NO_TICKET can be set.
1149 Add a TLS extension debugging callback to allow the contents of any client
1150 or server extensions to be examined.
1152 This work was sponsored by Google.
1155 *) Add initial support for TLS extensions, specifically for the server_name
1156 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1157 have new members for a host name. The SSL data structure has an
1158 additional member SSL_CTX *initial_ctx so that new sessions can be
1159 stored in that context to allow for session resumption, even after the
1160 SSL has been switched to a new SSL_CTX in reaction to a client's
1161 server_name extension.
1163 New functions (subject to change):
1165 SSL_get_servername()
1166 SSL_get_servername_type()
1169 New CTRL codes and macros (subject to change):
1171 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1172 - SSL_CTX_set_tlsext_servername_callback()
1173 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1174 - SSL_CTX_set_tlsext_servername_arg()
1175 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1177 openssl s_client has a new '-servername ...' option.
1179 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1180 '-key2 ...', '-servername_fatal' (subject to change). This allows
1181 testing the HostName extension for a specific single host name ('-cert'
1182 and '-key' remain fallbacks for handshakes without HostName
1183 negotiation). If the unrecogninzed_name alert has to be sent, this by
1184 default is a warning; it becomes fatal with the '-servername_fatal'
1187 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1189 *) Add AES and SSE2 assembly language support to VC++ build.
1192 *) Mitigate attack on final subtraction in Montgomery reduction.
1195 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1196 (which previously caused an internal error).
1199 *) Squeeze another 10% out of IGE mode when in != out.
1202 *) AES IGE mode speedup.
1203 [Dean Gaudet (Google)]
1205 *) Add the Korean symmetric 128-bit cipher SEED (see
1206 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1207 add SEED ciphersuites from RFC 4162:
1209 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1210 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1211 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1212 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1214 To minimize changes between patchlevels in the OpenSSL 0.9.8
1215 series, SEED remains excluded from compilation unless OpenSSL
1216 is configured with 'enable-seed'.
1217 [KISA, Bodo Moeller]
1219 *) Mitigate branch prediction attacks, which can be practical if a
1220 single processor is shared, allowing a spy process to extract
1221 information. For detailed background information, see
1222 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1223 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1224 and Necessary Software Countermeasures"). The core of the change
1225 are new versions BN_div_no_branch() and
1226 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1227 respectively, which are slower, but avoid the security-relevant
1228 conditional branches. These are automatically called by BN_div()
1229 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1230 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1231 remove a conditional branch.
1233 BN_FLG_CONSTTIME is the new name for the previous
1234 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1235 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1236 in the exponent causes BN_mod_exp_mont() to use the alternative
1237 implementation in BN_mod_exp_mont_consttime().) The old name
1238 remains as a deprecated alias.
1240 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1241 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1242 constant-time implementations for more than just exponentiation.
1243 Here too the old name is kept as a deprecated alias.
1245 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1246 the BN_BLINDING structure gets an independent copy of the
1247 modulus. This means that the previous "BIGNUM *m" argument to
1248 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1249 essentially becomes "const BIGNUM *m", although we can't actually
1250 change this in the header file before 0.9.9. It allows
1251 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1252 enable BN_FLG_CONSTTIME.
1254 [Matthew D Wood (Intel Corp)]
1256 *) In the SSL/TLS server implementation, be strict about session ID
1257 context matching (which matters if an application uses a single
1258 external cache for different purposes). Previously,
1259 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1260 set. This did ensure strict client verification, but meant that,
1261 with applications using a single external cache for quite
1262 different requirements, clients could circumvent ciphersuite
1263 restrictions for a given session ID context by starting a session
1264 in a different context.
1267 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1268 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1269 authentication-only ciphersuites.
1272 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1273 not complete and could lead to a possible single byte overflow
1274 (CVE-2007-5135) [Ben Laurie]
1276 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1278 *) Since AES128 and AES256 (and similarly Camellia128 and
1279 Camellia256) share a single mask bit in the logic of
1280 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1281 kludge to work properly if AES128 is available and AES256 isn't
1282 (or if Camellia128 is available and Camellia256 isn't).
1285 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1286 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1287 When a point or a seed is encoded in a BIT STRING, we need to
1288 prevent the removal of trailing zero bits to get the proper DER
1289 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1290 of a NamedBitList, for which trailing 0 bits need to be removed.)
1293 *) Have SSL/TLS server implementation tolerate "mismatched" record
1294 protocol version while receiving ClientHello even if the
1295 ClientHello is fragmented. (The server can't insist on the
1296 particular protocol version it has chosen before the ServerHello
1297 message has informed the client about his choice.)
1300 *) Add RFC 3779 support.
1301 [Rob Austein for ARIN, Ben Laurie]
1303 *) Load error codes if they are not already present instead of using a
1304 static variable. This allows them to be cleanly unloaded and reloaded.
1305 Improve header file function name parsing.
1308 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1309 or CAPABILITY handshake as required by RFCs.
1312 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1314 *) Introduce limits to prevent malicious keys being able to
1315 cause a denial of service. (CVE-2006-2940)
1316 [Steve Henson, Bodo Moeller]
1318 *) Fix ASN.1 parsing of certain invalid structures that can result
1319 in a denial of service. (CVE-2006-2937) [Steve Henson]
1321 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1322 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1324 *) Fix SSL client code which could crash if connecting to a
1325 malicious SSLv2 server. (CVE-2006-4343)
1326 [Tavis Ormandy and Will Drewry, Google Security Team]
1328 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1329 match only those. Before that, "AES256-SHA" would be interpreted
1330 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1331 the same strength classification in 0.9.7h) as we currently only
1332 have a single AES bit in the ciphersuite description bitmap.
1333 That change, however, also applied to ciphersuite strings such as
1334 "RC4-MD5" that intentionally matched multiple ciphersuites --
1335 namely, SSL 2.0 ciphersuites in addition to the more common ones
1336 from SSL 3.0/TLS 1.0.
1338 So we change the selection algorithm again: Naming an explicit
1339 ciphersuite selects this one ciphersuite, and any other similar
1340 ciphersuite (same bitmap) from *other* protocol versions.
1341 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1342 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1344 Since SSL 2.0 does not have any ciphersuites for which the
1345 128/256 bit distinction would be relevant, this works for now.
1346 The proper fix will be to use different bits for AES128 and
1347 AES256, which would have avoided the problems from the beginning;
1348 however, bits are scarce, so we can only do this in a new release
1349 (not just a patchlevel) when we can change the SSL_CIPHER
1350 definition to split the single 'unsigned long mask' bitmap into
1351 multiple values to extend the available space.
1355 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1357 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1358 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1360 *) Add AES IGE and biIGE modes.
1363 *) Change the Unix randomness entropy gathering to use poll() when
1364 possible instead of select(), since the latter has some
1365 undesirable limitations.
1366 [Darryl Miles via Richard Levitte and Bodo Moeller]
1368 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1369 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1370 cannot be implicitly activated as part of, e.g., the "AES" alias.
1371 However, please upgrade to OpenSSL 0.9.9[-dev] for
1372 non-experimental use of the ECC ciphersuites to get TLS extension
1373 support, which is required for curve and point format negotiation
1374 to avoid potential handshake problems.
1377 *) Disable rogue ciphersuites:
1379 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1380 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1381 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1383 The latter two were purportedly from
1384 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1387 Also deactivate the remaining ciphersuites from
1388 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1389 unofficial, and the ID has long expired.
1392 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1393 dual-core machines) and other potential thread-safety issues.
1396 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1397 versions), which is now available for royalty-free use
1398 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1399 Also, add Camellia TLS ciphersuites from RFC 4132.
1401 To minimize changes between patchlevels in the OpenSSL 0.9.8
1402 series, Camellia remains excluded from compilation unless OpenSSL
1403 is configured with 'enable-camellia'.
1406 *) Disable the padding bug check when compression is in use. The padding
1407 bug check assumes the first packet is of even length, this is not
1408 necessarily true if compresssion is enabled and can result in false
1409 positives causing handshake failure. The actual bug test is ancient
1410 code so it is hoped that implementations will either have fixed it by
1411 now or any which still have the bug do not support compression.
1414 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1416 *) When applying a cipher rule check to see if string match is an explicit
1417 cipher suite and only match that one cipher suite if it is.
1420 *) Link in manifests for VC++ if needed.
1421 [Austin Ziegler <halostatue@gmail.com>]
1423 *) Update support for ECC-based TLS ciphersuites according to
1424 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1425 TLS extensions, which are supported starting with the 0.9.9
1426 branch, not in the OpenSSL 0.9.8 branch).
1429 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1430 opaque EVP_CIPHER_CTX handling.
1433 *) Fixes and enhancements to zlib compression code. We now only use
1434 "zlib1.dll" and use the default __cdecl calling convention on Win32
1435 to conform with the standards mentioned here:
1436 http://www.zlib.net/DLL_FAQ.txt
1437 Static zlib linking now works on Windows and the new --with-zlib-include
1438 --with-zlib-lib options to Configure can be used to supply the location
1439 of the headers and library. Gracefully handle case where zlib library
1443 *) Several fixes and enhancements to the OID generation code. The old code
1444 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1445 handle numbers larger than ULONG_MAX, truncated printing and had a
1446 non standard OBJ_obj2txt() behaviour.
1449 *) Add support for building of engines under engine/ as shared libraries
1450 under VC++ build system.
1453 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1454 Hopefully, we will not see any false combination of paths any more.
1457 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1459 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1460 (part of SSL_OP_ALL). This option used to disable the
1461 countermeasure against man-in-the-middle protocol-version
1462 rollback in the SSL 2.0 server implementation, which is a bad
1463 idea. (CVE-2005-2969)
1465 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1466 for Information Security, National Institute of Advanced Industrial
1467 Science and Technology [AIST], Japan)]
1469 *) Add two function to clear and return the verify parameter flags.
1472 *) Keep cipherlists sorted in the source instead of sorting them at
1473 runtime, thus removing the need for a lock.
1476 *) Avoid some small subgroup attacks in Diffie-Hellman.
1477 [Nick Mathewson and Ben Laurie]
1479 *) Add functions for well-known primes.
1482 *) Extended Windows CE support.
1483 [Satoshi Nakamura and Andy Polyakov]
1485 *) Initialize SSL_METHOD structures at compile time instead of during
1486 runtime, thus removing the need for a lock.
1489 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1490 attempting to decrypt each encrypted key in turn. Add support to
1494 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1496 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1499 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1502 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1503 key into the same file any more.
1506 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1509 *) Add -utf8 command line and config file option to 'ca'.
1510 [Stefan <stf@udoma.org]
1512 *) Removed the macro des_crypt(), as it seems to conflict with some
1513 libraries. Use DES_crypt().
1516 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1517 involves renaming the source and generated shared-libs for
1518 both. The engines will accept the corrected or legacy ids
1519 ('ncipher' and '4758_cca' respectively) when binding. NB,
1520 this only applies when building 'shared'.
1521 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1523 *) Add attribute functions to EVP_PKEY structure. Modify
1524 PKCS12_create() to recognize a CSP name attribute and
1525 use it. Make -CSP option work again in pkcs12 utility.
1528 *) Add new functionality to the bn blinding code:
1529 - automatic re-creation of the BN_BLINDING parameters after
1530 a fixed number of uses (currently 32)
1531 - add new function for parameter creation
1532 - introduce flags to control the update behaviour of the
1533 BN_BLINDING parameters
1534 - hide BN_BLINDING structure
1535 Add a second BN_BLINDING slot to the RSA structure to improve
1536 performance when a single RSA object is shared among several
1540 *) Add support for DTLS.
1541 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1543 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1544 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1547 *) Remove buggy and incompletet DH cert support from
1548 ssl/ssl_rsa.c and ssl/s3_both.c
1551 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1552 the apps/openssl applications.
1555 *) Compile clean with "-Wall -Wmissing-prototypes
1556 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1557 DEBUG_SAFESTACK must also be set.
1560 *) Change ./Configure so that certain algorithms can be disabled by default.
1561 The new counterpiece to "no-xxx" is "enable-xxx".
1563 The patented RC5 and MDC2 algorithms will now be disabled unless
1564 "enable-rc5" and "enable-mdc2", respectively, are specified.
1566 (IDEA remains enabled despite being patented. This is because IDEA
1567 is frequently required for interoperability, and there is no license
1568 fee for non-commercial use. As before, "no-idea" can be used to
1569 avoid this algorithm.)
1573 *) Add processing of proxy certificates (see RFC 3820). This work was
1574 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1575 EGEE (Enabling Grids for E-science in Europe).
1578 *) RC4 performance overhaul on modern architectures/implementations, such
1579 as Intel P4, IA-64 and AMD64.
1582 *) New utility extract-section.pl. This can be used specify an alternative
1583 section number in a pod file instead of having to treat each file as
1584 a separate case in Makefile. This can be done by adding two lines to the
1587 =for comment openssl_section:XXX
1589 The blank line is mandatory.
1593 *) New arguments -certform, -keyform and -pass for s_client and s_server
1594 to allow alternative format key and certificate files and passphrase
1598 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1599 update associated structures and add various utility functions.
1601 Add new policy related verify parameters, include policy checking in
1602 standard verify code. Enhance 'smime' application with extra parameters
1603 to support policy checking and print out.
1606 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1607 Nehemiah processors. These extensions support AES encryption in hardware
1608 as well as RNG (though RNG support is currently disabled).
1609 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1611 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1614 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1615 [Andy Polyakov and a number of other people]
1617 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1618 implementation contributed by IBM.
1619 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1621 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1622 exponent rather than 'unsigned long'. There is a corresponding change to
1623 the new 'rsa_keygen' element of the RSA_METHOD structure.
1624 [Jelte Jansen, Geoff Thorpe]
1626 *) Functionality for creating the initial serial number file is now
1627 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1629 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1630 number file to 1, which is bound to cause problems. To avoid
1631 the problems while respecting compatibility between different 0.9.7
1632 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1633 CA.pl for serial number initialization. With the new release 0.9.8,
1634 we can fix the problem directly in the 'ca' utility.)
1637 *) Reduced header interdepencies by declaring more opaque objects in
1638 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1639 give fewer recursive includes, which could break lazy source code - so
1640 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1641 developers should define this symbol when building and using openssl to
1642 ensure they track the recommended behaviour, interfaces, [etc], but
1643 backwards-compatible behaviour prevails when this isn't defined.
1646 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1649 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1650 This will generate a random key of the appropriate length based on the
1651 cipher context. The EVP_CIPHER can provide its own random key generation
1652 routine to support keys of a specific form. This is used in the des and
1653 3des routines to generate a key of the correct parity. Update S/MIME
1654 code to use new functions and hence generate correct parity DES keys.
1655 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1656 valid (weak or incorrect parity).
1659 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1660 as looking them up. This is useful when the verified structure may contain
1661 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1662 present unless the new PKCS7_NO_CRL flag is asserted.
1665 *) Extend ASN1 oid configuration module. It now additionally accepts the
1668 shortName = some long name, 1.2.3.4
1671 *) Reimplemented the BN_CTX implementation. There is now no more static
1672 limitation on the number of variables it can handle nor the depth of the
1673 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1674 information can now expand as required, and rather than having a single
1675 static array of bignums, BN_CTX now uses a linked-list of such arrays
1676 allowing it to expand on demand whilst maintaining the usefulness of
1677 BN_CTX's "bundling".
1680 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1681 to allow all RSA operations to function using a single BN_CTX.
1684 *) Preliminary support for certificate policy evaluation and checking. This
1685 is initially intended to pass the tests outlined in "Conformance Testing
1686 of Relying Party Client Certificate Path Processing Logic" v1.07.
1689 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1690 remained unused and not that useful. A variety of other little bignum
1691 tweaks and fixes have also been made continuing on from the audit (see
1695 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1696 associated ASN1, EVP and SSL functions and old ASN1 macros.
1699 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1700 and this should never fail. So the return value from the use of
1701 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1702 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1705 *) BN_CTX_get() should return zero-valued bignums, providing the same
1706 initialised value as BN_new().
1707 [Geoff Thorpe, suggested by Ulf Möller]
1709 *) Support for inhibitAnyPolicy certificate extension.
1712 *) An audit of the BIGNUM code is underway, for which debugging code is
1713 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1714 is considered valid when processing BIGNUMs, and causes execution to
1715 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1716 further steps are taken to deliberately pollute unused data in BIGNUM
1717 structures to try and expose faulty code further on. For now, openssl will
1718 (in its default mode of operation) continue to tolerate the inconsistent
1719 forms that it has tolerated in the past, but authors and packagers should
1720 consider trying openssl and their own applications when compiled with
1721 these debugging symbols defined. It will help highlight potential bugs in
1722 their own code, and will improve the test coverage for OpenSSL itself. At
1723 some point, these tighter rules will become openssl's default to improve
1724 maintainability, though the assert()s and other overheads will remain only
1725 in debugging configurations. See bn.h for more details.
1726 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1728 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1729 that can only be obtained through BN_CTX_new() (which implicitly
1730 initialises it). The presence of this function only made it possible
1731 to overwrite an existing structure (and cause memory leaks).
1734 *) Because of the callback-based approach for implementing LHASH as a
1735 template type, lh_insert() adds opaque objects to hash-tables and
1736 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1737 to clean up those corresponding objects before destroying the hash table
1738 (and losing the object pointers). So some over-zealous constifications in
1739 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1740 objects as "const" and the lh_doall[_arg] callback wrappers are not
1741 prototyped to have "const" restrictions on the object pointers they are
1742 given (and so aren't required to cast them away any more).
1745 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1746 (speed) prefers to use its own implementation. The two implementations
1747 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1748 its object type properly exposed (MS_TM) instead of casting to/from "char
1749 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1750 aren't necessarily the greatest nomenclatures - but this is what was used
1751 internally to the implementation so I've used that for now.
1754 *) Ensure that deprecated functions do not get compiled when
1755 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1756 the self-tests were still using deprecated key-generation functions so
1757 these have been updated also.
1760 *) Reorganise PKCS#7 code to separate the digest location functionality
1761 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1762 New function PKCS7_set_digest() to set the digest type for PKCS#7
1763 digestedData type. Add additional code to correctly generate the
1764 digestedData type and add support for this type in PKCS7 initialization
1768 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1769 structure of type "other".
1772 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1773 sure the loop does correctly stop and breaking ("division by zero")
1774 modulus operations are not performed. The (pre-generated) prime
1775 table crypto/bn/bn_prime.h was already correct, but it could not be
1776 re-generated on some platforms because of the "division by zero"
1777 situation in the script.
1778 [Ralf S. Engelschall]
1780 *) Update support for ECC-based TLS ciphersuites according to
1781 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1782 SHA-1 now is only used for "small" curves (where the
1783 representation of a field element takes up to 24 bytes); for
1784 larger curves, the field element resulting from ECDH is directly
1785 used as premaster secret.
1786 [Douglas Stebila (Sun Microsystems Laboratories)]
1788 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1789 curve secp160r1 to the tests.
1790 [Douglas Stebila (Sun Microsystems Laboratories)]
1792 *) Add the possibility to load symbols globally with DSO.
1793 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1795 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1796 control of the error stack.
1799 *) Add support for STORE in ENGINE.
1802 *) Add the STORE type. The intention is to provide a common interface
1803 to certificate and key stores, be they simple file-based stores, or
1804 HSM-type store, or LDAP stores, or...
1805 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1808 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1809 pass a list of arguments to any function as well as provide a way
1810 for a function to pass data back to the caller.
1813 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1814 works like BUF_strdup() but can be used to duplicate a portion of
1815 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1819 *) Add the function sk_find_ex() which works like sk_find(), but will
1820 return an index to an element even if an exact match couldn't be
1821 found. The index is guaranteed to point at the element where the
1822 searched-for key would be inserted to preserve sorting order.
1825 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1826 takes an extra flags argument for optional functionality. Currently,
1827 the following flags are defined:
1829 OBJ_BSEARCH_VALUE_ON_NOMATCH
1830 This one gets OBJ_bsearch_ex() to return a pointer to the first
1831 element where the comparing function returns a negative or zero
1834 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1835 This one gets OBJ_bsearch_ex() to return a pointer to the first
1836 element where the comparing function returns zero. This is useful
1837 if there are more than one element where the comparing function
1841 *) Make it possible to create self-signed certificates with 'openssl ca'
1842 in such a way that the self-signed certificate becomes part of the
1843 CA database and uses the same mechanisms for serial number generation
1844 as all other certificate signing. The new flag '-selfsign' enables
1845 this functionality. Adapt CA.sh and CA.pl.in.
1848 *) Add functionality to check the public key of a certificate request
1849 against a given private. This is useful to check that a certificate
1850 request can be signed by that key (self-signing).
1853 *) Make it possible to have multiple active certificates with the same
1854 subject in the CA index file. This is done only if the keyword
1855 'unique_subject' is set to 'no' in the main CA section (default
1856 if 'CA_default') of the configuration file. The value is saved
1857 with the database itself in a separate index attribute file,
1858 named like the index file with '.attr' appended to the name.
1861 *) Generate muti valued AVAs using '+' notation in config files for
1865 *) Support for nameConstraints certificate extension.
1868 *) Support for policyConstraints certificate extension.
1871 *) Support for policyMappings certificate extension.
1874 *) Make sure the default DSA_METHOD implementation only uses its
1875 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1876 and change its own handlers to be NULL so as to remove unnecessary
1877 indirection. This lets alternative implementations fallback to the
1878 default implementation more easily.
1881 *) Support for directoryName in GeneralName related extensions
1885 *) Make it possible to link applications using Makefile.shared.
1886 Make that possible even when linking against static libraries!
1889 *) Support for single pass processing for S/MIME signing. This now
1890 means that S/MIME signing can be done from a pipe, in addition
1891 cleartext signing (multipart/signed type) is effectively streaming
1892 and the signed data does not need to be all held in memory.
1894 This is done with a new flag PKCS7_STREAM. When this flag is set
1895 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1896 is done after the data is output (and digests calculated) in
1897 SMIME_write_PKCS7().
1900 *) Add full support for -rpath/-R, both in shared libraries and
1901 applications, at least on the platforms where it's known how
1905 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1906 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1907 will now compute a table of multiples of the generator that
1908 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1909 faster (notably in the case of a single point multiplication,
1910 scalar * generator).
1911 [Nils Larsch, Bodo Moeller]
1913 *) IPv6 support for certificate extensions. The various extensions
1914 which use the IP:a.b.c.d can now take IPv6 addresses using the
1915 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1919 *) Added an ENGINE that implements RSA by performing private key
1920 exponentiations with the GMP library. The conversions to and from
1921 GMP's mpz_t format aren't optimised nor are any montgomery forms
1922 cached, and on x86 it appears OpenSSL's own performance has caught up.
1923 However there are likely to be other architectures where GMP could
1924 provide a boost. This ENGINE is not built in by default, but it can be
1925 specified at Configure time and should be accompanied by the necessary
1926 linker additions, eg;
1927 ./config -DOPENSSL_USE_GMP -lgmp
1930 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1931 testing availability of engines with "-t" - the old behaviour is
1932 produced by increasing the feature's verbosity with "-tt".
1935 *) ECDSA routines: under certain error conditions uninitialized BN objects
1936 could be freed. Solution: make sure initialization is performed early
1937 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1941 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1942 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1943 software implementations. For DSA and DH, parameter generation can
1944 also be overriden by providing the appropriate method callbacks.
1947 *) Change the "progress" mechanism used in key-generation and
1948 primality testing to functions that take a new BN_GENCB pointer in
1949 place of callback/argument pairs. The new API functions have "_ex"
1950 postfixes and the older functions are reimplemented as wrappers for
1951 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1952 declarations of the old functions to help (graceful) attempts to
1953 migrate to the new functions. Also, the new key-generation API
1954 functions operate on a caller-supplied key-structure and return
1955 success/failure rather than returning a key or NULL - this is to
1956 help make "keygen" another member function of RSA_METHOD etc.
1958 Example for using the new callback interface:
1960 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1964 BN_GENCB_set(&my_cb, my_callback, my_arg);
1966 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1967 /* For the meaning of a, b in calls to my_callback(), see the
1968 * documentation of the function that calls the callback.
1969 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1970 * my_callback should return 1 if it wants BN_is_prime_ex()
1971 * to continue, or 0 to stop.
1976 *) Change the ZLIB compression method to be stateful, and make it
1977 available to TLS with the number defined in
1978 draft-ietf-tls-compression-04.txt.
1981 *) Add the ASN.1 structures and functions for CertificatePair, which
1982 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1984 CertificatePair ::= SEQUENCE {
1985 forward [0] Certificate OPTIONAL,
1986 reverse [1] Certificate OPTIONAL,
1987 -- at least one of the pair shall be present -- }
1989 Also implement the PEM functions to read and write certificate
1990 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1992 This needed to be defined, mostly for the sake of the LDAP
1993 attribute crossCertificatePair, but may prove useful elsewhere as
1997 *) Make it possible to inhibit symlinking of shared libraries in
1998 Makefile.shared, for Cygwin's sake.
2001 *) Extend the BIGNUM API by creating a function
2002 void BN_set_negative(BIGNUM *a, int neg);
2003 and a macro that behave like
2004 int BN_is_negative(const BIGNUM *a);
2006 to avoid the need to access 'a->neg' directly in applications.
2009 *) Implement fast modular reduction for pseudo-Mersenne primes
2010 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2011 EC_GROUP_new_curve_GFp() will now automatically use this
2013 [Nils Larsch <nla@trustcenter.de>]
2015 *) Add new lock type (CRYPTO_LOCK_BN).
2018 *) Change the ENGINE framework to automatically load engines
2019 dynamically from specific directories unless they could be
2020 found to already be built in or loaded. Move all the
2021 current engines except for the cryptodev one to a new
2023 The engines in engines/ are built as shared libraries if
2024 the "shared" options was given to ./Configure or ./config.
2025 Otherwise, they are inserted in libcrypto.a.
2026 /usr/local/ssl/engines is the default directory for dynamic
2027 engines, but that can be overriden at configure time through
2028 the usual use of --prefix and/or --openssldir, and at run
2029 time with the environment variable OPENSSL_ENGINES.
2030 [Geoff Thorpe and Richard Levitte]
2032 *) Add Makefile.shared, a helper makefile to build shared
2033 libraries. Addapt Makefile.org.
2036 *) Add version info to Win32 DLLs.
2037 [Peter 'Luna' Runestig" <peter@runestig.com>]
2039 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2040 can be added using this API to created arbitrary PKCS#12
2041 files while avoiding the low level API.
2043 New options to PKCS12_create(), key or cert can be NULL and
2044 will then be omitted from the output file. The encryption
2045 algorithm NIDs can be set to -1 for no encryption, the mac
2046 iteration count can be set to 0 to omit the mac.
2048 Enhance pkcs12 utility by making the -nokeys and -nocerts
2049 options work when creating a PKCS#12 file. New option -nomac
2050 to omit the mac, NONE can be set for an encryption algorithm.
2051 New code is modified to use the enhanced PKCS12_create()
2052 instead of the low level API.
2055 *) Extend ASN1 encoder to support indefinite length constructed
2056 encoding. This can output sequences tags and octet strings in
2057 this form. Modify pk7_asn1.c to support indefinite length
2058 encoding. This is experimental and needs additional code to
2059 be useful, such as an ASN1 bio and some enhanced streaming
2062 Extend template encode functionality so that tagging is passed
2063 down to the template encoder.
2066 *) Let 'openssl req' fail if an argument to '-newkey' is not
2067 recognized instead of using RSA as a default.
2070 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2071 As these are not official, they are not included in "ALL";
2072 the "ECCdraft" ciphersuite group alias can be used to select them.
2073 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2075 *) Add ECDH engine support.
2076 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2078 *) Add ECDH in new directory crypto/ecdh/.
2079 [Douglas Stebila (Sun Microsystems Laboratories)]
2081 *) Let BN_rand_range() abort with an error after 100 iterations
2082 without success (which indicates a broken PRNG).
2085 *) Change BN_mod_sqrt() so that it verifies that the input value
2086 is really the square of the return value. (Previously,
2087 BN_mod_sqrt would show GIGO behaviour.)
2090 *) Add named elliptic curves over binary fields from X9.62, SECG,
2091 and WAP/WTLS; add OIDs that were still missing.
2093 [Sheueling Chang Shantz and Douglas Stebila
2094 (Sun Microsystems Laboratories)]
2096 *) Extend the EC library for elliptic curves over binary fields
2097 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2100 EC_GF2m_simple_method
2104 EC_GROUP_new_curve_GF2m
2105 EC_GROUP_set_curve_GF2m
2106 EC_GROUP_get_curve_GF2m
2107 EC_POINT_set_affine_coordinates_GF2m
2108 EC_POINT_get_affine_coordinates_GF2m
2109 EC_POINT_set_compressed_coordinates_GF2m
2111 Point compression for binary fields is disabled by default for
2112 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2115 As binary polynomials are represented as BIGNUMs, various members
2116 of the EC_GROUP and EC_POINT data structures can be shared
2117 between the implementations for prime fields and binary fields;
2118 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2119 are essentially identical to their ..._GFp counterparts.
2120 (For simplicity, the '..._GFp' prefix has been dropped from
2121 various internal method names.)
2123 An internal 'field_div' method (similar to 'field_mul' and
2124 'field_sqr') has been added; this is used only for binary fields.
2126 [Sheueling Chang Shantz and Douglas Stebila
2127 (Sun Microsystems Laboratories)]
2129 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2130 through methods ('mul', 'precompute_mult').
2132 The generic implementations (now internally called 'ec_wNAF_mul'
2133 and 'ec_wNAF_precomputed_mult') remain the default if these
2134 methods are undefined.
2136 [Sheueling Chang Shantz and Douglas Stebila
2137 (Sun Microsystems Laboratories)]
2139 *) New function EC_GROUP_get_degree, which is defined through
2140 EC_METHOD. For curves over prime fields, this returns the bit
2141 length of the modulus.
2143 [Sheueling Chang Shantz and Douglas Stebila
2144 (Sun Microsystems Laboratories)]
2146 *) New functions EC_GROUP_dup, EC_POINT_dup.
2147 (These simply call ..._new and ..._copy).
2149 [Sheueling Chang Shantz and Douglas Stebila
2150 (Sun Microsystems Laboratories)]
2152 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2153 Polynomials are represented as BIGNUMs (where the sign bit is not
2154 used) in the following functions [macros]:
2157 BN_GF2m_sub [= BN_GF2m_add]
2158 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2159 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2160 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2162 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2163 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2164 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2165 BN_GF2m_cmp [= BN_ucmp]
2167 (Note that only the 'mod' functions are actually for fields GF(2^m).
2168 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2170 For some functions, an the irreducible polynomial defining a
2171 field can be given as an 'unsigned int[]' with strictly
2172 decreasing elements giving the indices of those bits that are set;
2173 i.e., p[] represents the polynomial
2174 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2176 p[0] > p[1] > ... > p[k] = 0.
2177 This applies to the following functions:
2182 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2183 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2185 BN_GF2m_mod_sqrt_arr
2186 BN_GF2m_mod_solve_quad_arr
2190 Conversion can be performed by the following functions:
2195 bntest.c has additional tests for binary polynomial arithmetic.
2197 Two implementations for BN_GF2m_mod_div() are available.
2198 The default algorithm simply uses BN_GF2m_mod_inv() and
2199 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2200 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2201 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2203 [Sheueling Chang Shantz and Douglas Stebila
2204 (Sun Microsystems Laboratories)]
2206 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2207 functionality is disabled at compile-time.
2208 [Douglas Stebila <douglas.stebila@sun.com>]
2210 *) Change default behaviour of 'openssl asn1parse' so that more
2211 information is visible when viewing, e.g., a certificate:
2213 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2214 mode the content of non-printable OCTET STRINGs is output in a
2215 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2216 avoid the appearance of a printable string.
2217 [Nils Larsch <nla@trustcenter.de>]
2219 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2221 EC_GROUP_set_asn1_flag()
2222 EC_GROUP_get_asn1_flag()
2223 EC_GROUP_set_point_conversion_form()
2224 EC_GROUP_get_point_conversion_form()
2225 These control ASN1 encoding details:
2226 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2227 has been set to OPENSSL_EC_NAMED_CURVE.
2228 - Points are encoded in uncompressed form by default; options for
2229 asn1_for are as for point2oct, namely
2230 POINT_CONVERSION_COMPRESSED
2231 POINT_CONVERSION_UNCOMPRESSED
2232 POINT_CONVERSION_HYBRID
2234 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2237 EC_GROUP_get0_seed()
2238 EC_GROUP_get_seed_len()
2239 This is used only for ASN1 purposes (so far).
2240 [Nils Larsch <nla@trustcenter.de>]
2242 *) Add 'field_type' member to EC_METHOD, which holds the NID
2243 of the appropriate field type OID. The new function
2244 EC_METHOD_get_field_type() returns this value.
2245 [Nils Larsch <nla@trustcenter.de>]
2250 EC_POINT_point2hex()
2251 EC_POINT_hex2point()
2252 providing useful interfaces to EC_POINT_point2oct() and
2253 EC_POINT_oct2point().
2254 [Nils Larsch <nla@trustcenter.de>]
2256 *) Change internals of the EC library so that the functions
2257 EC_GROUP_set_generator()
2258 EC_GROUP_get_generator()
2259 EC_GROUP_get_order()
2260 EC_GROUP_get_cofactor()
2261 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2262 to methods, which would lead to unnecessary code duplication when
2263 adding different types of curves.
2264 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2266 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2267 arithmetic, and such that modified wNAFs are generated
2268 (which avoid length expansion in many cases).
2271 *) Add a function EC_GROUP_check_discriminant() (defined via
2272 EC_METHOD) that verifies that the curve discriminant is non-zero.
2274 Add a function EC_GROUP_check() that makes some sanity tests
2275 on a EC_GROUP, its generator and order. This includes
2276 EC_GROUP_check_discriminant().
2277 [Nils Larsch <nla@trustcenter.de>]
2279 *) Add ECDSA in new directory crypto/ecdsa/.
2281 Add applications 'openssl ecparam' and 'openssl ecdsa'
2282 (these are based on 'openssl dsaparam' and 'openssl dsa').
2284 ECDSA support is also included in various other files across the
2285 library. Most notably,
2286 - 'openssl req' now has a '-newkey ecdsa:file' option;
2287 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2288 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2289 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2290 them suitable for ECDSA where domain parameters must be
2291 extracted before the specific public key;
2292 - ECDSA engine support has been added.
2293 [Nils Larsch <nla@trustcenter.de>]
2295 *) Include some named elliptic curves, and add OIDs from X9.62,
2296 SECG, and WAP/WTLS. Each curve can be obtained from the new
2298 EC_GROUP_new_by_curve_name(),
2299 and the list of available named curves can be obtained with
2300 EC_get_builtin_curves().
2301 Also add a 'curve_name' member to EC_GROUP objects, which can be
2303 EC_GROUP_set_curve_name()
2304 EC_GROUP_get_curve_name()
2305 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2307 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2308 was actually never needed) and in BN_mul(). The removal in BN_mul()
2309 required a small change in bn_mul_part_recursive() and the addition
2310 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2311 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2312 bn_sub_words() and bn_add_words() except they take arrays with
2316 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
2318 *) In the SSL/TLS server implementation, be strict about session ID
2319 context matching (which matters if an application uses a single
2320 external cache for different purposes). Previously,
2321 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2322 set. This did ensure strict client verification, but meant that,
2323 with applications using a single external cache for quite
2324 different requirements, clients could circumvent ciphersuite
2325 restrictions for a given session ID context by starting a session
2326 in a different context.
2329 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2331 *) Cleanse PEM buffers before freeing them since they may contain
2333 [Benjamin Bennett <ben@psc.edu>]
2335 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2336 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2337 authentication-only ciphersuites.
2340 *) Since AES128 and AES256 share a single mask bit in the logic of
2341 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2342 kludge to work properly if AES128 is available and AES256 isn't.
2345 *) Expand security boundary to match 1.1.1 module.
2348 *) Remove redundant features: hash file source, editing of test vectors
2349 modify fipsld to use external fips_premain.c signature.
2352 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2353 run algorithm test programs.
2356 *) Make algorithm test programs more tolerant of whitespace.
2359 *) Have SSL/TLS server implementation tolerate "mismatched" record
2360 protocol version while receiving ClientHello even if the
2361 ClientHello is fragmented. (The server can't insist on the
2362 particular protocol version it has chosen before the ServerHello
2363 message has informed the client about his choice.)
2366 *) Load error codes if they are not already present instead of using a
2367 static variable. This allows them to be cleanly unloaded and reloaded.
2370 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2372 *) Introduce limits to prevent malicious keys being able to
2373 cause a denial of service. (CVE-2006-2940)
2374 [Steve Henson, Bodo Moeller]
2376 *) Fix ASN.1 parsing of certain invalid structures that can result
2377 in a denial of service. (CVE-2006-2937) [Steve Henson]
2379 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2380 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2382 *) Fix SSL client code which could crash if connecting to a
2383 malicious SSLv2 server. (CVE-2006-4343)
2384 [Tavis Ormandy and Will Drewry, Google Security Team]
2386 *) Change ciphersuite string processing so that an explicit
2387 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2388 will no longer include "AES128-SHA"), and any other similar
2389 ciphersuite (same bitmap) from *other* protocol versions (so that
2390 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2391 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2392 changes from 0.9.8b and 0.9.8d.
2395 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2397 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2398 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2400 *) Change the Unix randomness entropy gathering to use poll() when
2401 possible instead of select(), since the latter has some
2402 undesirable limitations.
2403 [Darryl Miles via Richard Levitte and Bodo Moeller]
2405 *) Disable rogue ciphersuites:
2407 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2408 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2409 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2411 The latter two were purportedly from
2412 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2415 Also deactive the remaining ciphersuites from
2416 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2417 unofficial, and the ID has long expired.
2420 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2421 dual-core machines) and other potential thread-safety issues.
2424 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2426 *) Adapt fipsld and the build system to link against the validated FIPS
2427 module in FIPS mode.
2430 *) Fixes for VC++ 2005 build under Windows.
2433 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2434 from a Windows bash shell such as MSYS. It is autodetected from the
2435 "config" script when run from a VC++ environment. Modify standard VC++
2436 build to use fipscanister.o from the GNU make build.
2439 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2441 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2442 The value now differs depending on if you build for FIPS or not.
2443 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2444 safely run with a non-FIPSed libcrypto, as it may crash because of
2445 the difference induced by this change.
2448 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2450 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2451 (part of SSL_OP_ALL). This option used to disable the
2452 countermeasure against man-in-the-middle protocol-version
2453 rollback in the SSL 2.0 server implementation, which is a bad
2454 idea. (CVE-2005-2969)
2456 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2457 for Information Security, National Institute of Advanced Industrial
2458 Science and Technology [AIST], Japan)]
2460 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2461 mainly for FIPS compliance and not fully integrated at this stage.
2464 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2465 the exponentiation using a fixed-length exponent. (Otherwise,
2466 the information leaked through timing could expose the secret key
2467 after many signatures; cf. Bleichenbacher's attack on DSA with
2471 *) Make a new fixed-window mod_exp implementation the default for
2472 RSA, DSA, and DH private-key operations so that the sequence of
2473 squares and multiplies and the memory access pattern are
2474 independent of the particular secret key. This will mitigate
2475 cache-timing and potential related attacks.
2477 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2478 and this is automatically used by BN_mod_exp_mont() if the new flag
2479 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2480 will use this BN flag for private exponents unless the flag
2481 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2482 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2484 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2486 *) Change the client implementation for SSLv23_method() and
2487 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2488 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2489 (Previously, the SSL 2.0 backwards compatible Client Hello
2490 message format would be used even with SSL_OP_NO_SSLv2.)
2493 *) Add support for smime-type MIME parameter in S/MIME messages which some
2497 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2498 a threadsafe manner. Modify rsa code to use new function and add calls
2499 to dsa and dh code (which had race conditions before).
2502 *) Include the fixed error library code in the C error file definitions
2503 instead of fixing them up at runtime. This keeps the error code
2504 structures constant.
2507 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2509 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2512 *) Fixes for newer kerberos headers. NB: the casts are needed because
2513 the 'length' field is signed on one version and unsigned on another
2514 with no (?) obvious way to tell the difference, without these VC++
2515 complains. Also the "definition" of FAR (blank) is no longer included
2516 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2517 some needed definitions.
2520 *) Undo Cygwin change.
2523 *) Added support for proxy certificates according to RFC 3820.
2524 Because they may be a security thread to unaware applications,
2525 they must be explicitely allowed in run-time. See
2526 docs/HOWTO/proxy_certificates.txt for further information.
2529 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2531 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2532 server and client random values. Previously
2533 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2534 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2536 This change has negligible security impact because:
2538 1. Server and client random values still have 24 bytes of pseudo random
2541 2. Server and client random values are sent in the clear in the initial
2544 3. The master secret is derived using the premaster secret (48 bytes in
2545 size for static RSA ciphersuites) as well as client server and random
2548 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2551 [Stephen Henson, reported by UK NISCC]
2553 *) Use Windows randomness collection on Cygwin.
2556 *) Fix hang in EGD/PRNGD query when communication socket is closed
2557 prematurely by EGD/PRNGD.
2558 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2560 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2563 *) Back-port of selected performance improvements from development
2564 branch, as well as improved support for PowerPC platforms.
2567 *) Add lots of checks for memory allocation failure, error codes to indicate
2568 failure and freeing up memory if a failure occurs.
2569 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2571 *) Add new -passin argument to dgst.
2574 *) Perform some character comparisons of different types in X509_NAME_cmp:
2575 this is needed for some certificates that reencode DNs into UTF8Strings
2576 (in violation of RFC3280) and can't or wont issue name rollover
2580 *) Make an explicit check during certificate validation to see that
2581 the CA setting in each certificate on the chain is correct. As a
2582 side effect always do the following basic checks on extensions,
2583 not just when there's an associated purpose to the check:
2585 - if there is an unhandled critical extension (unless the user
2586 has chosen to ignore this fault)
2587 - if the path length has been exceeded (if one is set at all)
2588 - that certain extensions fit the associated purpose (if one has
2592 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2594 *) Avoid a race condition when CRLs are checked in a multi threaded
2595 environment. This would happen due to the reordering of the revoked
2596 entries during signature checking and serial number lookup. Now the
2597 encoding is cached and the serial number sort performed under a lock.
2598 Add new STACK function sk_is_sorted().
2601 *) Add Delta CRL to the extension code.
2604 *) Various fixes to s3_pkt.c so alerts are sent properly.
2605 [David Holmes <d.holmes@f5.com>]
2607 *) Reduce the chances of duplicate issuer name and serial numbers (in
2608 violation of RFC3280) using the OpenSSL certificate creation utilities.
2609 This is done by creating a random 64 bit value for the initial serial
2610 number when a serial number file is created or when a self signed
2611 certificate is created using 'openssl req -x509'. The initial serial
2612 number file is created using 'openssl x509 -next_serial' in CA.pl
2613 rather than being initialized to 1.
2616 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2618 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2619 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2620 [Joe Orton, Steve Henson]
2622 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2624 [Joe Orton, Steve Henson]
2626 *) Make it possible to have multiple active certificates with the same
2627 subject in the CA index file. This is done only if the keyword
2628 'unique_subject' is set to 'no' in the main CA section (default
2629 if 'CA_default') of the configuration file. The value is saved
2630 with the database itself in a separate index attribute file,
2631 named like the index file with '.attr' appended to the name.
2634 *) X509 verify fixes. Disable broken certificate workarounds when
2635 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2636 keyUsage extension present. Don't accept CRLs with unhandled critical
2637 extensions: since verify currently doesn't process CRL extensions this
2638 rejects a CRL with *any* critical extensions. Add new verify error codes
2642 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2643 A clarification of RFC2560 will require the use of OCTET STRINGs and
2644 some implementations cannot handle the current raw format. Since OpenSSL
2645 copies and compares OCSP nonces as opaque blobs without any attempt at
2646 parsing them this should not create any compatibility issues.
2649 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2650 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2651 this HMAC (and other) operations are several times slower than OpenSSL
2655 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2656 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2658 *) Use the correct content when signing type "other".
2661 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2663 *) Fix various bugs revealed by running the NISCC test suite:
2665 Stop out of bounds reads in the ASN1 code when presented with
2666 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2668 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2670 If verify callback ignores invalid public key errors don't try to check
2671 certificate signature with the NULL public key.
2675 *) New -ignore_err option in ocsp application to stop the server
2676 exiting on the first error in a request.
2679 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2680 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2684 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2685 extra data after the compression methods not only for TLS 1.0
2686 but also for SSL 3.0 (as required by the specification).
2687 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2689 *) Change X509_certificate_type() to mark the key as exported/exportable
2690 when it's 512 *bits* long, not 512 bytes.
2693 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2694 blocks during encryption.
2697 *) Various fixes to base64 BIO and non blocking I/O. On write
2698 flushes were not handled properly if the BIO retried. On read
2699 data was not being buffered properly and had various logic bugs.
2700 This also affects blocking I/O when the data being decoded is a
2704 *) Various S/MIME bugfixes and compatibility changes:
2705 output correct application/pkcs7 MIME type if
2706 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2707 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2708 of files as .eml work). Correctly handle very long lines in MIME
2712 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2714 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2715 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2716 a protocol version number mismatch like a decryption error
2717 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2720 *) Turn on RSA blinding by default in the default implementation
2721 to avoid a timing attack. Applications that don't want it can call
2722 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2723 They would be ill-advised to do so in most cases.
2724 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2726 *) Change RSA blinding code so that it works when the PRNG is not
2727 seeded (in this case, the secret RSA exponent is abused as
2728 an unpredictable seed -- if it is not unpredictable, there
2729 is no point in blinding anyway). Make RSA blinding thread-safe
2730 by remembering the creator's thread ID in rsa->blinding and
2731 having all other threads use local one-time blinding factors
2732 (this requires more computation than sharing rsa->blinding, but
2733 avoids excessive locking; and if an RSA object is not shared
2734 between threads, blinding will still be very fast).
2737 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2738 ENGINE as defaults for all supported algorithms irrespective of
2739 the 'flags' parameter. 'flags' is now honoured, so applications
2740 should make sure they are passing it correctly.
2743 *) Target "mingw" now allows native Windows code to be generated in
2744 the Cygwin environment as well as with the MinGW compiler.
2747 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2749 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2750 via timing by performing a MAC computation even if incorrrect
2751 block cipher padding has been found. This is a countermeasure
2752 against active attacks where the attacker has to distinguish
2753 between bad padding and a MAC verification error. (CVE-2003-0078)
2755 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2756 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2757 Martin Vuagnoux (EPFL, Ilion)]
2759 *) Make the no-err option work as intended. The intention with no-err
2760 is not to have the whole error stack handling routines removed from
2761 libcrypto, it's only intended to remove all the function name and
2762 reason texts, thereby removing some of the footprint that may not
2763 be interesting if those errors aren't displayed anyway.
2765 NOTE: it's still possible for any application or module to have it's
2766 own set of error texts inserted. The routines are there, just not
2767 used by default when no-err is given.
2770 *) Add support for FreeBSD on IA64.
2771 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2773 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2774 Kerberos function mit_des_cbc_cksum(). Before this change,
2775 the value returned by DES_cbc_cksum() was like the one from
2776 mit_des_cbc_cksum(), except the bytes were swapped.
2777 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2779 *) Allow an application to disable the automatic SSL chain building.
2780 Before this a rather primitive chain build was always performed in
2781 ssl3_output_cert_chain(): an application had no way to send the
2782 correct chain if the automatic operation produced an incorrect result.
2784 Now the chain builder is disabled if either:
2786 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2788 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2790 The reasoning behind this is that an application would not want the
2791 auto chain building to take place if extra chain certificates are
2792 present and it might also want a means of sending no additional
2793 certificates (for example the chain has two certificates and the
2797 *) Add the possibility to build without the ENGINE framework.
2798 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2800 *) Under Win32 gmtime() can return NULL: check return value in
2801 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2804 *) DSA routines: under certain error conditions uninitialized BN objects
2805 could be freed. Solution: make sure initialization is performed early
2806 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2807 Nils Larsch <nla@trustcenter.de> via PR#459)
2810 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2811 checked on reconnect on the client side, therefore session resumption
2812 could still fail with a "ssl session id is different" error. This
2813 behaviour is masked when SSL_OP_ALL is used due to
2814 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2815 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2816 followup to PR #377.
2819 *) IA-32 assembler support enhancements: unified ELF targets, support
2820 for SCO/Caldera platforms, fix for Cygwin shared build.
2823 *) Add support for FreeBSD on sparc64. As a consequence, support for
2824 FreeBSD on non-x86 processors is separate from x86 processors on
2825 the config script, much like the NetBSD support.
2826 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2828 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2830 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2833 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2834 code (06) was taken as the first octet of the session ID and the last
2835 octet was ignored consequently. As a result SSLv2 client side session
2836 caching could not have worked due to the session ID mismatch between
2838 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2842 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2843 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2847 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2848 seems that in spite of existing for more than a year, many application
2849 author have done nothing to provide the necessary callbacks, which
2850 means that this particular engine will not work properly anywhere.
2851 This is a very unfortunate situation which forces us, in the name
2852 of usability, to give the hw_ncipher.c a static lock, which is part
2854 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2855 appear in 0.9.8 or later. We EXPECT application authors to have
2856 dealt properly with this when 0.9.8 is released (unless we actually
2857 make such changes in the libcrypto locking code that changes will
2858 have to be made anyway).
2861 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2862 octets have been read, EOF or an error occurs. Without this change
2863 some truncated ASN1 structures will not produce an error.
2866 *) Disable Heimdal support, since it hasn't been fully implemented.
2867 Still give the possibility to force the use of Heimdal, but with
2868 warnings and a request that patches get sent to openssl-dev.
2871 *) Add the VC-CE target, introduce the WINCE sysname, and add
2872 INSTALL.WCE and appropriate conditionals to make it build.
2873 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2875 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2876 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2877 edit numbers of the version.
2878 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2880 *) Introduce safe string copy and catenation functions
2881 (BUF_strlcpy() and BUF_strlcat()).
2882 [Ben Laurie (CHATS) and Richard Levitte]
2884 *) Avoid using fixed-size buffers for one-line DNs.
2885 [Ben Laurie (CHATS)]
2887 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2888 resizing buffers containing secrets, and use where appropriate.
2889 [Ben Laurie (CHATS)]
2891 *) Avoid using fixed size buffers for configuration file location.
2892 [Ben Laurie (CHATS)]
2894 *) Avoid filename truncation for various CA files.
2895 [Ben Laurie (CHATS)]
2897 *) Use sizeof in preference to magic numbers.
2898 [Ben Laurie (CHATS)]
2900 *) Avoid filename truncation in cert requests.
2901 [Ben Laurie (CHATS)]
2903 *) Add assertions to check for (supposedly impossible) buffer
2905 [Ben Laurie (CHATS)]
2907 *) Don't cache truncated DNS entries in the local cache (this could
2908 potentially lead to a spoofing attack).
2909 [Ben Laurie (CHATS)]
2911 *) Fix various buffers to be large enough for hex/decimal
2912 representations in a platform independent manner.
2913 [Ben Laurie (CHATS)]
2915 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2916 resizing buffers containing secrets, and use where appropriate.
2917 [Ben Laurie (CHATS)]
2919 *) Add BIO_indent() to avoid much slightly worrying code to do
2921 [Ben Laurie (CHATS)]
2923 *) Convert sprintf()/BIO_puts() to BIO_printf().
2924 [Ben Laurie (CHATS)]
2926 *) buffer_gets() could terminate with the buffer only half
2928 [Ben Laurie (CHATS)]
2930 *) Add assertions to prevent user-supplied crypto functions from
2931 overflowing internal buffers by having large block sizes, etc.
2932 [Ben Laurie (CHATS)]
2934 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2936 [Ben Laurie (CHATS)]
2938 *) Eliminate unused copy of key in RC4.
2939 [Ben Laurie (CHATS)]
2941 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2942 [Ben Laurie (CHATS)]
2944 *) Fix off-by-one error in EGD path.
2945 [Ben Laurie (CHATS)]
2947 *) If RANDFILE path is too long, ignore instead of truncating.
2948 [Ben Laurie (CHATS)]
2950 *) Eliminate unused and incorrectly sized X.509 structure
2952 [Ben Laurie (CHATS)]
2954 *) Eliminate unused and dangerous function knumber().
2955 [Ben Laurie (CHATS)]
2957 *) Eliminate unused and dangerous structure, KSSL_ERR.
2958 [Ben Laurie (CHATS)]
2960 *) Protect against overlong session ID context length in an encoded
2961 session object. Since these are local, this does not appear to be
2963 [Ben Laurie (CHATS)]
2965 *) Change from security patch (see 0.9.6e below) that did not affect
2966 the 0.9.6 release series:
2968 Remote buffer overflow in SSL3 protocol - an attacker could
2969 supply an oversized master key in Kerberos-enabled versions.
2971 [Ben Laurie (CHATS)]
2973 *) Change the SSL kerb5 codes to match RFC 2712.
2976 *) Make -nameopt work fully for req and add -reqopt switch.
2977 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2979 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2980 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2982 *) Make sure tests can be performed even if the corresponding algorithms
2983 have been removed entirely. This was also the last step to make
2984 OpenSSL compilable with DJGPP under all reasonable conditions.
2985 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2987 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2988 to allow version independent disabling of normally unselected ciphers,
2989 which may be activated as a side-effect of selecting a single cipher.
2991 (E.g., cipher list string "RSA" enables ciphersuites that are left
2992 out of "ALL" because they do not provide symmetric encryption.
2993 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2994 [Lutz Jaenicke, Bodo Moeller]
2996 *) Add appropriate support for separate platform-dependent build
2997 directories. The recommended way to make a platform-dependent
2998 build directory is the following (tested on Linux), maybe with
3001 # Place yourself outside of the OpenSSL source tree. In
3002 # this example, the environment variable OPENSSL_SOURCE
3003 # is assumed to contain the absolute OpenSSL source directory.
3004 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3005 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3006 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3007 mkdir -p `dirname $F`
3008 ln -s $OPENSSL_SOURCE/$F $F
3011 To be absolutely sure not to disturb the source tree, a "make clean"
3012 is a good thing. If it isn't successfull, don't worry about it,
3013 it probably means the source directory is very clean.
3016 *) Make sure any ENGINE control commands make local copies of string
3017 pointers passed to them whenever necessary. Otherwise it is possible
3018 the caller may have overwritten (or deallocated) the original string
3019 data when a later ENGINE operation tries to use the stored values.
3020 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3022 *) Improve diagnostics in file reading and command-line digests.
3023 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3025 *) Add AES modes CFB and OFB to the object database. Correct an
3026 error in AES-CFB decryption.
3029 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3030 allows existing EVP_CIPHER_CTX structures to be reused after
3031 calling EVP_*Final(). This behaviour is used by encryption
3032 BIOs and some applications. This has the side effect that
3033 applications must explicitly clean up cipher contexts with
3034 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3037 *) Check the values of dna and dnb in bn_mul_recursive before calling
3038 bn_mul_comba (a non zero value means the a or b arrays do not contain
3039 n2 elements) and fallback to bn_mul_normal if either is not zero.
3042 *) Fix escaping of non-ASCII characters when using the -subj option
3043 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3046 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3047 form for "surname", serialNumber has no short form.
3048 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3049 therefore remove "mail" short name for "internet 7".
3050 The OID for unique identifiers in X509 certificates is
3051 x500UniqueIdentifier, not uniqueIdentifier.
3052 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3055 *) Add an "init" command to the ENGINE config module and auto initialize
3056 ENGINEs. Without any "init" command the ENGINE will be initialized
3057 after all ctrl commands have been executed on it. If init=1 the
3058 ENGINE is initailized at that point (ctrls before that point are run
3059 on the uninitialized ENGINE and after on the initialized one). If
3060 init=0 then the ENGINE will not be iniatialized at all.
3063 *) Fix the 'app_verify_callback' interface so that the user-defined
3064 argument is actually passed to the callback: In the
3065 SSL_CTX_set_cert_verify_callback() prototype, the callback
3066 declaration has been changed from
3069 int (*cb)(X509_STORE_CTX *,void *);
3070 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3071 i=s->ctx->app_verify_callback(&ctx)
3072 has been changed into
3073 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3075 To update applications using SSL_CTX_set_cert_verify_callback(),
3076 a dummy argument can be added to their callback functions.
3077 [D. K. Smetters <smetters@parc.xerox.com>]
3079 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3080 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3082 *) Add and OPENSSL_LOAD_CONF define which will cause
3083 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3084 This allows older applications to transparently support certain
3085 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3086 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3087 load the config file and OPENSSL_add_all_algorithms_conf() which will
3088 always load it have also been added.
3091 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3092 Adjust NIDs and EVP layer.
3093 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3095 *) Config modules support in openssl utility.
3097 Most commands now load modules from the config file,
3098 though in a few (such as version) this isn't done
3099 because it couldn't be used for anything.
3101 In the case of ca and req the config file used is
3102 the same as the utility itself: that is the -config
3103 command line option can be used to specify an
3107 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3108 use "openssl_conf" if filename is NULL use default openssl config file.
3111 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3112 config section name. Add a new flag to tolerate a missing config file
3113 and move code to CONF_modules_load_file().
3116 *) Support for crypto accelerator cards from Accelerated Encryption
3117 Processing, www.aep.ie. (Use engine 'aep')
3118 The support was copied from 0.9.6c [engine] and adapted/corrected
3119 to work with the new engine framework.
3120 [AEP Inc. and Richard Levitte]
3122 *) Support for SureWare crypto accelerator cards from Baltimore
3123 Technologies. (Use engine 'sureware')
3124 The support was copied from 0.9.6c [engine] and adapted
3125 to work with the new engine framework.
3128 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3129 make the newer ENGINE framework commands for the CHIL engine work.
3130 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3132 *) Make it possible to produce shared libraries on ReliantUNIX.
3133 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3135 *) Add the configuration target debug-linux-ppro.
3136 Make 'openssl rsa' use the general key loading routines
3137 implemented in apps.c, and make those routines able to
3138 handle the key format FORMAT_NETSCAPE and the variant
3140 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3142 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3143 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3145 *) Add -keyform to rsautl, and document -engine.
3146 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3148 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3149 BIO_R_NO_SUCH_FILE error code rather than the generic
3150 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3153 *) Add new functions
3155 ERR_peek_last_error_line
3156 ERR_peek_last_error_line_data.
3157 These are similar to
3160 ERR_peek_error_line_data,
3161 but report on the latest error recorded rather than the first one
3162 still in the error queue.
3163 [Ben Laurie, Bodo Moeller]
3165 *) default_algorithms option in ENGINE config module. This allows things
3167 default_algorithms = ALL
3168 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3171 *) Prelminary ENGINE config module.
3174 *) New experimental application configuration code.
3177 *) Change the AES code to follow the same name structure as all other
3178 symmetric ciphers, and behave the same way. Move everything to
3179 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3180 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3182 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3183 [Ben Laurie and Theo de Raadt]
3185 *) Add option to output public keys in req command.
3186 [Massimiliano Pala madwolf@openca.org]
3188 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3189 (up to about 10% better than before for P-192 and P-224).
3192 *) New functions/macros
3194 SSL_CTX_set_msg_callback(ctx, cb)
3195 SSL_CTX_set_msg_callback_arg(ctx, arg)
3196 SSL_set_msg_callback(ssl, cb)
3197 SSL_set_msg_callback_arg(ssl, arg)
3199 to request calling a callback function
3201 void cb(int write_p, int version, int content_type,
3202 const void *buf, size_t len, SSL *ssl, void *arg)
3204 whenever a protocol message has been completely received
3205 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3206 protocol version according to which the SSL library interprets
3207 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3208 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3209 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3210 specification (change_cipher_spec(20), alert(21), handshake(22)).
3211 'buf' and 'len' point to the actual message, 'ssl' to the
3212 SSL object, and 'arg' is the application-defined value set by
3213 SSL[_CTX]_set_msg_callback_arg().
3215 'openssl s_client' and 'openssl s_server' have new '-msg' options
3216 to enable a callback that displays all protocol messages.
3219 *) Change the shared library support so shared libraries are built as
3220 soon as the corresponding static library is finished, and thereby get
3221 openssl and the test programs linked against the shared library.
3222 This still only happens when the keyword "shard" has been given to
3223 the configuration scripts.
3225 NOTE: shared library support is still an experimental thing, and
3226 backward binary compatibility is still not guaranteed.
3227 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3229 *) Add support for Subject Information Access extension.
3230 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3232 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3233 additional bytes when new memory had to be allocated, not just
3234 when reusing an existing buffer.
3237 *) New command line and configuration option 'utf8' for the req command.
3238 This allows field values to be specified as UTF8 strings.
3241 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3242 runs for the former and machine-readable output for the latter.
3245 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3246 of the e-mail address in the DN (i.e., it will go into a certificate
3247 extension only). The new configuration file option 'email_in_dn = no'
3248 has the same effect.
3249 [Massimiliano Pala madwolf@openca.org]
3251 *) Change all functions with names starting with des_ to be starting
3252 with DES_ instead. Add wrappers that are compatible with libdes,
3253 but are named _ossl_old_des_*. Finally, add macros that map the
3254 des_* symbols to the corresponding _ossl_old_des_* if libdes
3255 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3256 desired, the des_* symbols will be mapped to DES_*, with one
3259 Since we provide two compatibility mappings, the user needs to
3260 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3261 compatibility is desired. The default (i.e., when that macro
3262 isn't defined) is OpenSSL 0.9.6c compatibility.
3264 There are also macros that enable and disable the support of old
3265 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3266 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3267 are defined, the default will apply: to support the old des routines.
3269 In either case, one must include openssl/des.h to get the correct
3270 definitions. Do not try to just include openssl/des_old.h, that
3273 NOTE: This is a major break of an old API into a new one. Software
3274 authors are encouraged to switch to the DES_ style functions. Some
3275 time in the future, des_old.h and the libdes compatibility functions
3276 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3277 default), and then completely removed.
3280 *) Test for certificates which contain unsupported critical extensions.
3281 If such a certificate is found during a verify operation it is
3282 rejected by default: this behaviour can be overridden by either
3283 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3284 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3285 X509_supported_extension() has also been added which returns 1 if a
3286 particular extension is supported.
3289 *) Modify the behaviour of EVP cipher functions in similar way to digests
3290 to retain compatibility with existing code.
3293 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3294 compatibility with existing code. In particular the 'ctx' parameter does
3295 not have to be to be initialized before the call to EVP_DigestInit() and
3296 it is tidied up after a call to EVP_DigestFinal(). New function
3297 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3298 EVP_MD_CTX_copy() changed to not require the destination to be
3299 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3300 requires the destination to be valid.
3302 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3303 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3306 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3307 so that complete 'Handshake' protocol structures are kept in memory
3308 instead of overwriting 'msg_type' and 'length' with 'body' data.
3311 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3312 [Massimo Santin via Richard Levitte]
3314 *) Major restructuring to the underlying ENGINE code. This includes
3315 reduction of linker bloat, separation of pure "ENGINE" manipulation
3316 (initialisation, etc) from functionality dealing with implementations
3317 of specific crypto iterfaces. This change also introduces integrated
3318 support for symmetric ciphers and digest implementations - so ENGINEs
3319 can now accelerate these by providing EVP_CIPHER and EVP_MD
3320 implementations of their own. This is detailed in crypto/engine/README
3321 as it couldn't be adequately described here. However, there are a few
3322 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3323 were changed in the original introduction of ENGINE code have now
3324 reverted back - the hooking from this code to ENGINE is now a good
3325 deal more passive and at run-time, operations deal directly with
3326 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3327 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3328 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3329 they were not being used by the framework as there is no concept of a
3330 BIGNUM_METHOD and they could not be generalised to the new
3331 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3332 ENGINE_cpy() has been removed as it cannot be consistently defined in
3336 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3339 *) Change mkdef.pl to sort symbols that get the same entry number,
3340 and make sure the automatically generated functions ERR_load_*
3341 become part of libeay.num as well.
3344 *) New function SSL_renegotiate_pending(). This returns true once
3345 renegotiation has been requested (either SSL_renegotiate() call
3346 or HelloRequest/ClientHello receveived from the peer) and becomes
3347 false once a handshake has been completed.
3348 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3349 sends a HelloRequest, but does not ensure that a handshake takes
3350 place. SSL_renegotiate_pending() is useful for checking if the
3351 client has followed the request.)
3354 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3355 By default, clients may request session resumption even during
3356 renegotiation (if session ID contexts permit); with this option,
3357 session resumption is possible only in the first handshake.
3359 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3360 more bits available for options that should not be part of
3361 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3364 *) Add some demos for certificate and certificate request creation.
3367 *) Make maximum certificate chain size accepted from the peer application
3368 settable (SSL*_get/set_max_cert_list()), as proposed by
3369 "Douglas E. Engert" <deengert@anl.gov>.
3372 *) Add support for shared libraries for Unixware-7
3373 (Boyd Lynn Gerber <gerberb@zenez.com>).
3376 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3377 be done prior to destruction. Use this to unload error strings from
3378 ENGINEs that load their own error strings. NB: This adds two new API
3379 functions to "get" and "set" this destroy handler in an ENGINE.
3382 *) Alter all existing ENGINE implementations (except "openssl" and
3383 "openbsd") to dynamically instantiate their own error strings. This
3384 makes them more flexible to be built both as statically-linked ENGINEs
3385 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3386 Also, add stub code to each that makes building them as self-contained
3387 shared-libraries easier (see README.ENGINE).
3390 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3391 implementations into applications that are completely implemented in
3392 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3393 commands that can be used to configure what shared-library to load and
3394 to control aspects of the way it is handled. Also, made an update to
3395 the README.ENGINE file that brings its information up-to-date and
3396 provides some information and instructions on the "dynamic" ENGINE
3397 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3400 *) Make it possible to unload ranges of ERR strings with a new
3401 "ERR_unload_strings" function.
3404 *) Add a copy() function to EVP_MD.
3407 *) Make EVP_MD routines take a context pointer instead of just the
3408 md_data void pointer.
3411 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3412 that the digest can only process a single chunk of data
3413 (typically because it is provided by a piece of
3414 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3415 is only going to provide a single chunk of data, and hence the
3416 framework needn't accumulate the data for oneshot drivers.
3419 *) As with "ERR", make it possible to replace the underlying "ex_data"
3420 functions. This change also alters the storage and management of global
3421 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3422 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3423 index counters. The API functions that use this state have been changed
3424 to take a "class_index" rather than pointers to the class's local STACK
3425 and counter, and there is now an API function to dynamically create new
3426 classes. This centralisation allows us to (a) plug a lot of the
3427 thread-safety problems that existed, and (b) makes it possible to clean
3428 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3429 such data would previously have always leaked in application code and
3430 workarounds were in place to make the memory debugging turn a blind eye
3431 to it. Application code that doesn't use this new function will still
3432 leak as before, but their memory debugging output will announce it now
3433 rather than letting it slide.
3435 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3436 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3437 has a return value to indicate success or failure.
3440 *) Make it possible to replace the underlying "ERR" functions such that the
3441 global state (2 LHASH tables and 2 locks) is only used by the "default"
3442 implementation. This change also adds two functions to "get" and "set"
3443 the implementation prior to it being automatically set the first time
3444 any other ERR function takes place. Ie. an application can call "get",
3445 pass the return value to a module it has just loaded, and that module
3446 can call its own "set" function using that value. This means the
3447 module's "ERR" operations will use (and modify) the error state in the
3448 application and not in its own statically linked copy of OpenSSL code.
3451 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3452 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3453 the operation, and provides a more encapsulated way for external code
3454 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3455 to use these functions rather than manually incrementing the counts.
3457 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3460 *) Add EVP test program.
3463 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3466 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3467 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3468 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3469 These allow a CRL to be built without having to access X509_CRL fields
3470 directly. Modify 'ca' application to use new functions.
3473 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3474 bug workarounds. Rollback attack detection is a security feature.
3475 The problem will only arise on OpenSSL servers when TLSv1 is not
3476 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3477 Software authors not wanting to support TLSv1 will have special reasons
3478 for their choice and can explicitly enable this option.
3479 [Bodo Moeller, Lutz Jaenicke]
3481 *) Rationalise EVP so it can be extended: don't include a union of
3482 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3483 (similar to those existing for EVP_CIPHER_CTX).
3488 EVP_MD_CTX_init(&md); /* new function call */
3489 EVP_DigestInit(&md, EVP_sha1());
3490 EVP_DigestUpdate(&md, in, len);
3491 EVP_DigestFinal(&md, out, NULL);
3492 EVP_MD_CTX_cleanup(&md); /* new function call */
3496 *) Make DES key schedule conform to the usual scheme, as well as
3497 correcting its structure. This means that calls to DES functions
3498 now have to pass a pointer to a des_key_schedule instead of a
3499 plain des_key_schedule (which was actually always a pointer
3502 des_key_schedule ks;
3504 des_set_key_checked(..., &ks);
3505 des_ncbc_encrypt(..., &ks, ...);
3507 (Note that a later change renames 'des_...' into 'DES_...'.)
3510 *) Initial reduction of linker bloat: the use of some functions, such as
3511 PEM causes large amounts of unused functions to be linked in due to
3512 poor organisation. For example pem_all.c contains every PEM function
3513 which has a knock on effect of linking in large amounts of (unused)
3514 ASN1 code. Grouping together similar functions and splitting unrelated
3515 functions prevents this.
3518 *) Cleanup of EVP macros.
3521 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3522 correct _ecb suffix.
3525 *) Add initial OCSP responder support to ocsp application. The
3526 revocation information is handled using the text based index
3527 use by the ca application. The responder can either handle
3528 requests generated internally, supplied in files (for example
3529 via a CGI script) or using an internal minimal server.
3532 *) Add configuration choices to get zlib compression for TLS.
3535 *) Changes to Kerberos SSL for RFC 2712 compliance:
3536 1. Implemented real KerberosWrapper, instead of just using
3537 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3538 2. Implemented optional authenticator field of KerberosWrapper.
3540 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3541 and authenticator structs; see crypto/krb5/.
3543 Generalized Kerberos calls to support multiple Kerberos libraries.
3544 [Vern Staats <staatsvr@asc.hpc.mil>,
3545 Jeffrey Altman <jaltman@columbia.edu>
3546 via Richard Levitte]
3548 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3549 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3550 values for each of the key sizes rather than having just
3551 parameters (and 'speed' generating keys each time).
3554 *) Speed up EVP routines.
3557 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3558 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3559 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3560 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3562 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3563 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3564 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3567 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3569 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3572 *) Added the OS2-EMX target.
3573 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3575 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3576 to support NCONF routines in extension code. New function CONF_set_nconf()
3577 to allow functions which take an NCONF to also handle the old LHASH
3578 structure: this means that the old CONF compatible routines can be
3579 retained (in particular wrt extensions) without having to duplicate the
3580 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3583 *) Enhance the general user interface with mechanisms for inner control
3584 and with possibilities to have yes/no kind of prompts.
3587 *) Change all calls to low level digest routines in the library and
3588 applications to use EVP. Add missing calls to HMAC_cleanup() and
3589 don't assume HMAC_CTX can be copied using memcpy().
3590 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3592 *) Add the possibility to control engines through control names but with
3593 arbitrary arguments instead of just a string.
3594 Change the key loaders to take a UI_METHOD instead of a callback
3595 function pointer. NOTE: this breaks binary compatibility with earlier
3596 versions of OpenSSL [engine].
3597 Adapt the nCipher code for these new conditions and add a card insertion
3601 *) Enhance the general user interface with mechanisms to better support
3602 dialog box interfaces, application-defined prompts, the possibility
3603 to use defaults (for example default passwords from somewhere else)
3604 and interrupts/cancellations.
3607 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3608 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3611 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3612 tidy up some unnecessarily weird code in 'sk_new()').
3613 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3615 *) Change the key loading routines for ENGINEs to use the same kind
3616 callback (pem_password_cb) as all other routines that need this
3620 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3621 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3622 than this minimum value is recommended.
3625 *) New random seeder for OpenVMS, using the system process statistics
3626 that are easily reachable.
3629 *) Windows apparently can't transparently handle global
3630 variables defined in DLLs. Initialisations such as:
3632 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3634 wont compile. This is used by the any applications that need to
3635 declare their own ASN1 modules. This was fixed by adding the option
3636 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3637 needed for static libraries under Win32.
3640 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3641 setting of purpose and trust fields. New X509_STORE trust and
3642 purpose functions and tidy up setting in other SSL functions.
3645 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3646 structure. These are inherited by X509_STORE_CTX when it is
3647 initialised. This allows various defaults to be set in the
3648 X509_STORE structure (such as flags for CRL checking and custom
3649 purpose or trust settings) for functions which only use X509_STORE_CTX
3650 internally such as S/MIME.
3652 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3653 trust settings if they are not set in X509_STORE. This allows X509_STORE
3654 purposes and trust (in S/MIME for example) to override any set by default.
3656 Add command line options for CRL checking to smime, s_client and s_server
3660 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3661 are set then the CRL is looked up in the X509_STORE structure and
3662 its validity and signature checked, then if the certificate is found
3663 in the CRL the verify fails with a revoked error.
3665 Various new CRL related callbacks added to X509_STORE_CTX structure.
3667 Command line options added to 'verify' application to support this.
3669 This needs some additional work, such as being able to handle multiple
3670 CRLs with different times, extension based lookup (rather than just
3671 by subject name) and ultimately more complete V2 CRL extension
3675 *) Add a general user interface API (crypto/ui/). This is designed
3676 to replace things like des_read_password and friends (backward
3677 compatibility functions using this new API are provided).
3678 The purpose is to remove prompting functions from the DES code
3679 section as well as provide for prompting through dialog boxes in
3680 a window system and the like.
3683 *) Add "ex_data" support to ENGINE so implementations can add state at a
3684 per-structure level rather than having to store it globally.
3687 *) Make it possible for ENGINE structures to be copied when retrieved by
3688 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3689 This causes the "original" ENGINE structure to act like a template,
3690 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3691 operational state can be localised to each ENGINE structure, despite the
3692 fact they all share the same "methods". New ENGINE structures returned in
3693 this case have no functional references and the return value is the single
3694 structural reference. This matches the single structural reference returned
3695 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3699 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3700 needs to match any other type at all we need to manually clear the
3704 *) Changes to the "openssl engine" utility to include;
3705 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3706 about an ENGINE's available control commands.
3707 - executing control commands from command line arguments using the
3708 '-pre' and '-post' switches. '-post' is only used if '-t' is
3709 specified and the ENGINE is successfully initialised. The syntax for
3710 the individual commands are colon-separated, for example;
3711 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3714 *) New dynamic control command support for ENGINEs. ENGINEs can now
3715 declare their own commands (numbers), names (strings), descriptions,
3716 and input types for run-time discovery by calling applications. A
3717 subset of these commands are implicitly classed as "executable"
3718 depending on their input type, and only these can be invoked through
3719 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3720 can be based on user input, config files, etc). The distinction is
3721 that "executable" commands cannot return anything other than a boolean
3722 result and can only support numeric or string input, whereas some
3723 discoverable commands may only be for direct use through
3724 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3725 pointers, or other custom uses. The "executable" commands are to
3726 support parameterisations of ENGINE behaviour that can be
3727 unambiguously defined by ENGINEs and used consistently across any
3728 OpenSSL-based application. Commands have been added to all the
3729 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3730 control over shared-library paths without source code alterations.
3733 *) Changed all ENGINE implementations to dynamically allocate their
3734 ENGINEs rather than declaring them statically. Apart from this being
3735 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3736 this also allows the implementations to compile without using the
3737 internal engine_int.h header.
3740 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3741 'const' value. Any code that should be able to modify a RAND_METHOD
3742 should already have non-const pointers to it (ie. they should only
3743 modify their own ones).
3746 *) Made a variety of little tweaks to the ENGINE code.
3747 - "atalla" and "ubsec" string definitions were moved from header files
3748 to C code. "nuron" string definitions were placed in variables
3749 rather than hard-coded - allowing parameterisation of these values
3750 later on via ctrl() commands.
3751 - Removed unused "#if 0"'d code.
3752 - Fixed engine list iteration code so it uses ENGINE_free() to release
3753 structural references.
3754 - Constified the RAND_METHOD element of ENGINE structures.
3755 - Constified various get/set functions as appropriate and added
3756 missing functions (including a catch-all ENGINE_cpy that duplicates
3757 all ENGINE values onto a new ENGINE except reference counts/state).
3758 - Removed NULL parameter checks in get/set functions. Setting a method
3759 or function to NULL is a way of cancelling out a previously set
3760 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3761 and doesn't justify the extra error symbols and code.
3762 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3763 flags from engine_int.h to engine.h.
3764 - Changed prototypes for ENGINE handler functions (init(), finish(),
3765 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3768 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3769 to the algorithm using long division. The binary algorithm can be
3770 used only if the modulus is odd. On 32-bit systems, it is faster
3771 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3772 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3773 up to 450 bits. In 64-bit environments, the binary algorithm
3774 appears to be advantageous for much longer moduli; here we use it
3775 for moduli up to 2048 bits.
3778 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3779 could not support the combine flag in choice fields.
3782 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3783 extensions from a certificate request to the certificate.
3786 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3787 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3788 file: this allows the display of the certificate about to be
3789 signed to be customised, to allow certain fields to be included
3790 or excluded and extension details. The old system didn't display
3791 multicharacter strings properly, omitted fields not in the policy
3792 and couldn't display additional details such as extensions.
3795 *) Function EC_POINTs_mul for multiple scalar multiplication
3796 of an arbitrary number of elliptic curve points
3797 \sum scalars[i]*points[i],
3798 optionally including the generator defined for the EC_GROUP:
3799 scalar*generator + \sum scalars[i]*points[i].
3801 EC_POINT_mul is a simple wrapper function for the typical case
3802 that the point list has just one item (besides the optional
3806 *) First EC_METHODs for curves over GF(p):
3808 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3809 operations and provides various method functions that can also
3810 operate with faster implementations of modular arithmetic.
3812 EC_GFp_mont_method() reuses most functions that are part of
3813 EC_GFp_simple_method, but uses Montgomery arithmetic.
3815 [Bodo Moeller; point addition and point doubling
3816 implementation directly derived from source code provided by
3817 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3819 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3820 crypto/ec/ec_lib.c):
3822 Curves are EC_GROUP objects (with an optional group generator)
3823 based on EC_METHODs that are built into the library.
3825 Points are EC_POINT objects based on EC_GROUP objects.
3827 Most of the framework would be able to handle curves over arbitrary
3828 finite fields, but as there are no obvious types for fields other
3829 than GF(p), some functions are limited to that for now.
3832 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3833 that the file contains a complete HTTP response.
3836 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3837 change the def and num file printf format specifier from "%-40sXXX"
3838 to "%-39s XXX". The latter will always guarantee a space after the
3839 field while the former will cause them to run together if the field
3840 is 40 of more characters long.
3843 *) Constify the cipher and digest 'method' functions and structures
3844 and modify related functions to take constant EVP_MD and EVP_CIPHER
3848 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3849 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3852 *) Modify EVP_Digest*() routines so they now return values. Although the
3853 internal software routines can never fail additional hardware versions
3857 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3859 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3860 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3863 ERR_R_NESTED_ASN1_ERROR
3865 ERR_R_MISSING_ASN1_EOS
3866 were 4 .. 9, conflicting with
3867 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3869 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3870 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3872 Add new error code 'ERR_R_INTERNAL_ERROR'.
3875 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3879 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3880 sets the subject name for a new request or supersedes the
3881 subject name in a given request. Formats that can be parsed are
3882 'CN=Some Name, OU=myOU, C=IT'
3884 'CN=Some Name/OU=myOU/C=IT'.
3886 Add options '-batch' and '-verbose' to 'openssl req'.
3887 [Massimiliano Pala <madwolf@hackmasters.net>]
3889 *) Introduce the possibility to access global variables through
3890 functions on platform were that's the best way to handle exporting
3891 global variables in shared libraries. To enable this functionality,
3892 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3893 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3894 is normally done by Configure or something similar).
3896 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3897 in the source file (foo.c) like this:
3899 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3900 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3902 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3903 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3905 OPENSSL_DECLARE_GLOBAL(int,foo);
3906 #define foo OPENSSL_GLOBAL_REF(foo)
3907 OPENSSL_DECLARE_GLOBAL(double,bar);
3908 #define bar OPENSSL_GLOBAL_REF(bar)
3910 The #defines are very important, and therefore so is including the
3911 header file everywhere where the defined globals are used.
3913 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3914 of ASN.1 items, but that structure is a bit different.
3916 The largest change is in util/mkdef.pl which has been enhanced with
3917 better and easier to understand logic to choose which symbols should
3918 go into the Windows .def files as well as a number of fixes and code
3919 cleanup (among others, algorithm keywords are now sorted
3920 lexicographically to avoid constant rewrites).
3923 *) In BN_div() keep a copy of the sign of 'num' before writing the
3924 result to 'rm' because if rm==num the value will be overwritten
3925 and produce the wrong result if 'num' is negative: this caused
3926 problems with BN_mod() and BN_nnmod().
3929 *) Function OCSP_request_verify(). This checks the signature on an
3930 OCSP request and verifies the signer certificate. The signer
3931 certificate is just checked for a generic purpose and OCSP request
3935 *) Add OCSP_check_validity() function to check the validity of OCSP
3936 responses. OCSP responses are prepared in real time and may only
3937 be a few seconds old. Simply checking that the current time lies
3938 between thisUpdate and nextUpdate max reject otherwise valid responses
3939 caused by either OCSP responder or client clock inaccuracy. Instead
3940 we allow thisUpdate and nextUpdate to fall within a certain period of
3941 the current time. The age of the response can also optionally be
3942 checked. Two new options -validity_period and -status_age added to
3946 *) If signature or public key algorithm is unrecognized print out its
3947 OID rather that just UNKNOWN.
3950 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3951 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3952 ID to be generated from the issuer certificate alone which can then be
3953 passed to OCSP_id_issuer_cmp().
3956 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3957 ASN1 modules to export functions returning ASN1_ITEM pointers
3958 instead of the ASN1_ITEM structures themselves. This adds several
3959 new macros which allow the underlying ASN1 function/structure to
3960 be accessed transparently. As a result code should not use ASN1_ITEM
3961 references directly (such as &X509_it) but instead use the relevant
3962 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3963 use of the new ASN1 code on platforms where exporting structures
3964 is problematical (for example in shared libraries) but exporting
3965 functions returning pointers to structures is not.
3968 *) Add support for overriding the generation of SSL/TLS session IDs.
3969 These callbacks can be registered either in an SSL_CTX or per SSL.
3970 The purpose of this is to allow applications to control, if they wish,
3971 the arbitrary values chosen for use as session IDs, particularly as it
3972 can be useful for session caching in multiple-server environments. A
3973 command-line switch for testing this (and any client code that wishes
3974 to use such a feature) has been added to "s_server".
3975 [Geoff Thorpe, Lutz Jaenicke]
3977 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3978 of the form '#if defined(...) || defined(...) || ...' and
3979 '#if !defined(...) && !defined(...) && ...'. This also avoids
3980 the growing number of special cases it was previously handling.
3983 *) Make all configuration macros available for application by making
3984 sure they are available in opensslconf.h, by giving them names starting
3985 with "OPENSSL_" to avoid conflicts with other packages and by making
3986 sure e_os2.h will cover all platform-specific cases together with
3988 Additionally, it is now possible to define configuration/platform-
3989 specific names (called "system identities"). In the C code, these
3990 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3991 macro with the name beginning with "OPENSSL_SYS_", which is determined
3992 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3996 *) New option -set_serial to 'req' and 'x509' this allows the serial
3997 number to use to be specified on the command line. Previously self
3998 signed certificates were hard coded with serial number 0 and the
3999 CA options of 'x509' had to use a serial number in a file which was
4003 *) New options to 'ca' utility to support V2 CRL entry extensions.
4004 Currently CRL reason, invalidity date and hold instruction are
4005 supported. Add new CRL extensions to V3 code and some new objects.
4008 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4009 disable standard block padding (aka PKCS#5 padding) in the EVP
4010 API, which was previously mandatory. This means that the data is
4011 not padded in any way and so the total length much be a multiple
4012 of the block size, otherwise an error occurs.
4015 *) Initial (incomplete) OCSP SSL support.
4018 *) New function OCSP_parse_url(). This splits up a URL into its host,
4019 port and path components: primarily to parse OCSP URLs. New -url
4020 option to ocsp utility.
4023 *) New nonce behavior. The return value of OCSP_check_nonce() now
4024 reflects the various checks performed. Applications can decide
4025 whether to tolerate certain situations such as an absent nonce
4026 in a response when one was present in a request: the ocsp application
4027 just prints out a warning. New function OCSP_add1_basic_nonce()
4028 this is to allow responders to include a nonce in a response even if
4029 the request is nonce-less.
4032 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4033 skipped when using openssl x509 multiple times on a single input file,
4034 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4037 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4038 set string type: to handle setting ASN1_TIME structures. Fix ca
4039 utility to correctly initialize revocation date of CRLs.
4042 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4043 the clients preferred ciphersuites and rather use its own preferences.
4044 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4045 Internet Explorer by ensuring unchanged hash method during stepup.
4046 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4049 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4050 to aes and add a new 'exist' option to print out symbols that don't
4054 *) Additional options to ocsp utility to allow flags to be set and
4055 additional certificates supplied.
4058 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4059 OCSP client a number of certificate to only verify the response
4063 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4064 handle the new API. Currently only ECB, CBC modes supported. Add new
4067 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4068 Encryption Standard (AES) Ciphersuites for Transport Layer
4069 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4070 not enabled by default and were not part of the "ALL" ciphersuite
4071 alias because they were not yet official; they could be
4072 explicitly requested by specifying the "AESdraft" ciphersuite
4073 group alias. In the final release of OpenSSL 0.9.7, the group
4074 alias is called "AES" and is part of "ALL".)
4075 [Ben Laurie, Steve Henson, Bodo Moeller]
4077 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4078 request to response.
4081 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4082 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4083 extract information from a certificate request. OCSP_response_create()
4084 creates a response and optionally adds a basic response structure.
4085 OCSP_basic_add1_status() adds a complete single response to a basic
4086 response and returns the OCSP_SINGLERESP structure just added (to allow
4087 extensions to be included for example). OCSP_basic_add1_cert() adds a
4088 certificate to a basic response and OCSP_basic_sign() signs a basic
4089 response with various flags. New helper functions ASN1_TIME_check()
4090 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4091 (converts ASN1_TIME to GeneralizedTime).
4094 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4095 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4096 structure from a certificate. X509_pubkey_digest() digests the public_key
4097 contents: this is used in various key identifiers.
4100 *) Make sk_sort() tolerate a NULL argument.
4101 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4103 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4104 passed by the function are trusted implicitly. If any of them signed the
4105 response then it is assumed to be valid and is not verified.
4108 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4109 to data. This was previously part of the PKCS7 ASN1 code. This
4110 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4111 [Steve Henson, reported by Kenneth R. Robinette
4112 <support@securenetterm.com>]
4114 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4115 routines: without these tracing memory leaks is very painful.
4116 Fix leaks in PKCS12 and PKCS7 routines.
4119 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4120 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4121 effectively meant GeneralizedTime would never be used. Now it
4122 is initialised to -1 but X509_time_adj() now has to check the value
4123 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4124 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4125 [Steve Henson, reported by Kenneth R. Robinette
4126 <support@securenetterm.com>]
4128 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4129 result in a zero length in the ASN1_INTEGER structure which was
4130 not consistent with the structure when d2i_ASN1_INTEGER() was used
4131 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4132 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4133 where it did not print out a minus for negative ASN1_INTEGER.
4136 *) Add summary printout to ocsp utility. The various functions which
4137 convert status values to strings have been renamed to:
4138 OCSP_response_status_str(), OCSP_cert_status_str() and
4139 OCSP_crl_reason_str() and are no longer static. New options
4140 to verify nonce values and to disable verification. OCSP response
4141 printout format cleaned up.
4144 *) Add additional OCSP certificate checks. These are those specified
4145 in RFC2560. This consists of two separate checks: the CA of the
4146 certificate being checked must either be the OCSP signer certificate
4147 or the issuer of the OCSP signer certificate. In the latter case the
4148 OCSP signer certificate must contain the OCSP signing extended key
4149 usage. This check is performed by attempting to match the OCSP
4150 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4151 in the OCSP_CERTID structures of the response.
4154 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4155 and related routines. This uses the standard OpenSSL certificate
4156 verify routines to perform initial checks (just CA validity) and
4157 to obtain the certificate chain. Then additional checks will be
4158 performed on the chain. Currently the root CA is checked to see
4159 if it is explicitly trusted for OCSP signing. This is used to set
4160 a root CA as a global signing root: that is any certificate that
4161 chains to that CA is an acceptable OCSP signing certificate.
4164 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4165 extensions from a separate configuration file.
4166 As when reading extensions from the main configuration file,
4167 the '-extensions ...' option may be used for specifying the
4169 [Massimiliano Pala <madwolf@comune.modena.it>]
4171 *) New OCSP utility. Allows OCSP requests to be generated or
4172 read. The request can be sent to a responder and the output
4173 parsed, outputed or printed in text form. Not complete yet:
4174 still needs to check the OCSP response validity.
4177 *) New subcommands for 'openssl ca':
4178 'openssl ca -status <serial>' prints the status of the cert with
4179 the given serial number (according to the index file).
4180 'openssl ca -updatedb' updates the expiry status of certificates
4182 [Massimiliano Pala <madwolf@comune.modena.it>]
4184 *) New '-newreq-nodes' command option to CA.pl. This is like
4185 '-newreq', but calls 'openssl req' with the '-nodes' option
4186 so that the resulting key is not encrypted.
4187 [Damien Miller <djm@mindrot.org>]
4189 *) New configuration for the GNU Hurd.
4190 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4192 *) Initial code to implement OCSP basic response verify. This
4193 is currently incomplete. Currently just finds the signer's
4194 certificate and verifies the signature on the response.
4197 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4198 value of OPENSSLDIR. This is available via the new '-d' option
4199 to 'openssl version', and is also included in 'openssl version -a'.
4202 *) Allowing defining memory allocation callbacks that will be given
4203 file name and line number information in additional arguments
4204 (a const char* and an int). The basic functionality remains, as
4205 well as the original possibility to just replace malloc(),
4206 realloc() and free() by functions that do not know about these
4207 additional arguments. To register and find out the current
4208 settings for extended allocation functions, the following
4209 functions are provided:
4211 CRYPTO_set_mem_ex_functions
4212 CRYPTO_set_locked_mem_ex_functions
4213 CRYPTO_get_mem_ex_functions
4214 CRYPTO_get_locked_mem_ex_functions
4216 These work the same way as CRYPTO_set_mem_functions and friends.
4217 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4218 extended allocation function is enabled.
4219 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4220 a conventional allocation function is enabled.
4221 [Richard Levitte, Bodo Moeller]
4223 *) Finish off removing the remaining LHASH function pointer casts.
4224 There should no longer be any prototype-casting required when using
4225 the LHASH abstraction, and any casts that remain are "bugs". See
4226 the callback types and macros at the head of lhash.h for details
4227 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4230 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4231 If /dev/[u]random devices are not available or do not return enough
4232 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4234 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4235 /etc/entropy will be queried once each in this sequence, quering stops
4236 when enough entropy was collected without querying more sockets.
4239 *) Change the Unix RAND_poll() variant to be able to poll several
4240 random devices, as specified by DEVRANDOM, until a sufficient amount
4241 of data has been collected. We spend at most 10 ms on each file
4242 (select timeout) and read in non-blocking mode. DEVRANDOM now
4243 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4244 (previously it was just the string "/dev/urandom"), so on typical
4245 platforms the 10 ms delay will never occur.
4246 Also separate out the Unix variant to its own file, rand_unix.c.
4247 For VMS, there's a currently-empty rand_vms.c.
4250 *) Move OCSP client related routines to ocsp_cl.c. These
4251 provide utility functions which an application needing
4252 to issue a request to an OCSP responder and analyse the
4253 response will typically need: as opposed to those which an
4254 OCSP responder itself would need which will be added later.
4256 OCSP_request_sign() signs an OCSP request with an API similar
4257 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4258 response. OCSP_response_get1_basic() extracts basic response
4259 from response. OCSP_resp_find_status(): finds and extracts status
4260 information from an OCSP_CERTID structure (which will be created
4261 when the request structure is built). These are built from lower
4262 level functions which work on OCSP_SINGLERESP structures but
4263 wont normally be used unless the application wishes to examine
4264 extensions in the OCSP response for example.
4266 Replace nonce routines with a pair of functions.
4267 OCSP_request_add1_nonce() adds a nonce value and optionally
4268 generates a random value. OCSP_check_nonce() checks the
4269 validity of the nonce in an OCSP response.
4272 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4273 This doesn't copy the supplied OCSP_CERTID and avoids the
4274 need to free up the newly created id. Change return type
4275 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4276 This can then be used to add extensions to the request.
4277 Deleted OCSP_request_new(), since most of its functionality
4278 is now in OCSP_REQUEST_new() (and the case insensitive name
4279 clash) apart from the ability to set the request name which
4280 will be added elsewhere.
4283 *) Update OCSP API. Remove obsolete extensions argument from
4284 various functions. Extensions are now handled using the new
4285 OCSP extension code. New simple OCSP HTTP function which
4286 can be used to send requests and parse the response.
4289 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4290 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4291 uses the special reorder version of SET OF to sort the attributes
4292 and reorder them to match the encoded order. This resolves a long
4293 standing problem: a verify on a PKCS7 structure just after signing
4294 it used to fail because the attribute order did not match the
4295 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4296 it uses the received order. This is necessary to tolerate some broken
4297 software that does not order SET OF. This is handled by encoding
4298 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4299 to produce the required SET OF.
4302 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4303 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4304 files to get correct declarations of the ASN.1 item variables.
4307 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4308 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4309 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4310 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4311 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4312 ASN1_ITEM and no wrapper functions.
4315 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4316 replace the old function pointer based I/O routines. Change most of
4317 the *_d2i_bio() and *_d2i_fp() functions to use these.
4320 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4321 lines, recognice more "algorithms" that can be deselected, and make
4322 it complain about algorithm deselection that isn't recognised.
4325 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4326 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4327 to use new functions. Add NO_ASN1_OLD which can be set to remove
4328 some old style ASN1 functions: this can be used to determine if old
4329 code will still work when these eventually go away.
4332 *) New extension functions for OCSP structures, these follow the
4333 same conventions as certificates and CRLs.
4336 *) New function X509V3_add1_i2d(). This automatically encodes and
4337 adds an extension. Its behaviour can be customised with various
4338 flags to append, replace or delete. Various wrappers added for
4339 certifcates and CRLs.
4342 *) Fix to avoid calling the underlying ASN1 print routine when
4343 an extension cannot be parsed. Correct a typo in the
4344 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4347 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4348 entries for variables.
4351 *) Add functionality to apps/openssl.c for detecting locking
4352 problems: As the program is single-threaded, all we have
4353 to do is register a locking callback using an array for
4354 storing which locks are currently held by the program.
4357 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4358 SSL_get_ex_data_X509_STORE_idx(), which is used in
4359 ssl_verify_cert_chain() and thus can be called at any time
4360 during TLS/SSL handshakes so that thread-safety is essential.
4361 Unfortunately, the ex_data design is not at all suited
4362 for multi-threaded use, so it probably should be abolished.
4365 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4366 [Broadcom, tweaked and integrated by Geoff Thorpe]
4368 *) Move common extension printing code to new function
4369 X509V3_print_extensions(). Reorganise OCSP print routines and
4370 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4373 *) New function X509_signature_print() to remove duplication in some
4377 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4378 set (this was treated exactly the same as SET OF previously). This
4379 is used to reorder the STACK representing the structure to match the
4380 encoding. This will be used to get round a problem where a PKCS7
4381 structure which was signed could not be verified because the STACK
4382 order did not reflect the encoded order.
4385 *) Reimplement the OCSP ASN1 module using the new code.
4388 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4389 for its ASN1 operations. The old style function pointers still exist
4390 for now but they will eventually go away.
4393 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4394 completely replaces the old ASN1 functionality with a table driven
4395 encoder and decoder which interprets an ASN1_ITEM structure describing
4396 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4397 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4398 has also been converted to the new form.
4401 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4402 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4403 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4404 for negative moduli.
4407 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4408 of not touching the result's sign bit.
4411 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4415 *) Changed the LHASH code to use prototypes for callbacks, and created
4416 macros to declare and implement thin (optionally static) functions
4417 that provide type-safety and avoid function pointer casting for the
4418 type-specific callbacks.
4421 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4423 [Veers Staats <staatsvr@asc.hpc.mil>,
4424 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4426 *) Reformat the FAQ so the different questions and answers can be divided
4427 in sections depending on the subject.
4430 *) Have the zlib compression code load ZLIB.DLL dynamically under
4434 *) New function BN_mod_sqrt for computing square roots modulo a prime
4435 (using the probabilistic Tonelli-Shanks algorithm unless
4436 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4437 be handled deterministically).
4438 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4440 *) Make BN_mod_inverse faster by explicitly handling small quotients
4441 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4442 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4445 *) New function BN_kronecker.
4448 *) Fix BN_gcd so that it works on negative inputs; the result is
4449 positive unless both parameters are zero.
4450 Previously something reasonably close to an infinite loop was
4451 possible because numbers could be growing instead of shrinking
4452 in the implementation of Euclid's algorithm.
4455 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4456 sign of the number in question.
4458 Fix BN_is_word(a,w) to work correctly for w == 0.
4460 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4461 because its test if the absolute value of 'a' equals 'w'.
4462 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4463 it exists mostly for use in the implementations of BN_is_zero(),
4464 BN_is_one(), and BN_is_word().
4467 *) New function BN_swap.
4470 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4471 the exponentiation functions are more likely to produce reasonable
4472 results on negative inputs.
4475 *) Change BN_mod_mul so that the result is always non-negative.
4476 Previously, it could be negative if one of the factors was negative;
4477 I don't think anyone really wanted that behaviour.
4480 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4481 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4482 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4483 and add new functions:
4492 BN_mod_lshift1_quick
4496 These functions always generate non-negative results.
4498 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4499 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4501 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4502 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4503 be reduced modulo m.
4504 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4507 The following entry accidentily appeared in the CHANGES file
4508 distributed with OpenSSL 0.9.7. The modifications described in
4509 it do *not* apply to OpenSSL 0.9.7.
4511 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4512 was actually never needed) and in BN_mul(). The removal in BN_mul()
4513 required a small change in bn_mul_part_recursive() and the addition
4514 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4515 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4516 bn_sub_words() and bn_add_words() except they take arrays with
4521 *) In 'openssl passwd', verify passwords read from the terminal
4522 unless the '-salt' option is used (which usually means that
4523 verification would just waste user's time since the resulting
4524 hash is going to be compared with some given password hash)
4525 or the new '-noverify' option is used.
4527 This is an incompatible change, but it does not affect
4528 non-interactive use of 'openssl passwd' (passwords on the command
4529 line, '-stdin' option, '-in ...' option) and thus should not
4533 *) Remove all references to RSAref, since there's no more need for it.
4536 *) Make DSO load along a path given through an environment variable
4537 (SHLIB_PATH) with shl_load().
4540 *) Constify the ENGINE code as a result of BIGNUM constification.
4541 Also constify the RSA code and most things related to it. In a
4542 few places, most notable in the depth of the ASN.1 code, ugly
4543 casts back to non-const were required (to be solved at a later
4547 *) Make it so the openssl application has all engines loaded by default.
4550 *) Constify the BIGNUM routines a little more.
4553 *) Add the following functions:
4555 ENGINE_load_cswift()
4557 ENGINE_load_atalla()
4559 ENGINE_load_builtin_engines()
4561 That way, an application can itself choose if external engines that
4562 are built-in in OpenSSL shall ever be used or not. The benefit is
4563 that applications won't have to be linked with libdl or other dso
4564 libraries unless it's really needed.
4566 Changed 'openssl engine' to load all engines on demand.
4567 Changed the engine header files to avoid the duplication of some
4568 declarations (they differed!).
4571 *) 'openssl engine' can now list capabilities.
4574 *) Better error reporting in 'openssl engine'.
4577 *) Never call load_dh_param(NULL) in s_server.
4580 *) Add engine application. It can currently list engines by name and
4581 identity, and test if they are actually available.
4584 *) Improve RPM specification file by forcing symbolic linking and making
4585 sure the installed documentation is also owned by root.root.
4586 [Damien Miller <djm@mindrot.org>]
4588 *) Give the OpenSSL applications more possibilities to make use of
4589 keys (public as well as private) handled by engines.
4592 *) Add OCSP code that comes from CertCo.
4595 *) Add VMS support for the Rijndael code.
4598 *) Added untested support for Nuron crypto accelerator.
4601 *) Add support for external cryptographic devices. This code was
4602 previously distributed separately as the "engine" branch.
4603 [Geoff Thorpe, Richard Levitte]
4605 *) Rework the filename-translation in the DSO code. It is now possible to
4606 have far greater control over how a "name" is turned into a filename
4607 depending on the operating environment and any oddities about the
4608 different shared library filenames on each system.
4611 *) Support threads on FreeBSD-elf in Configure.
4614 *) Fix for SHA1 assembly problem with MASM: it produces
4615 warnings about corrupt line number information when assembling
4616 with debugging information. This is caused by the overlapping
4618 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4621 NCONF_get_number() has no error checking at all. As a replacement,
4622 NCONF_get_number_e() is defined (_e for "error checking") and is
4623 promoted strongly. The old NCONF_get_number is kept around for
4624 binary backward compatibility.
4625 Make it possible for methods to load from something other than a BIO,
4626 by providing a function pointer that is given a name instead of a BIO.
4627 For example, this could be used to load configuration data from an
4631 *) Fix for non blocking accept BIOs. Added new I/O special reason
4632 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4633 with non blocking I/O was not possible because no retry code was
4634 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4638 *) Added the beginnings of Rijndael support.
4641 *) Fix for bug in DirectoryString mask setting. Add support for
4642 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4643 to allow certificate printing to more controllable, additional
4644 'certopt' option to 'x509' to allow new printing options to be
4648 *) Clean old EAY MD5 hack from e_os.h.
4651 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4653 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4654 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4655 [Joe Orton, Steve Henson]
4657 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4659 *) Fix additional bug revealed by the NISCC test suite:
4661 Stop bug triggering large recursion when presented with
4662 certain ASN.1 tags (CVE-2003-0851)
4665 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4667 *) Fix various bugs revealed by running the NISCC test suite:
4669 Stop out of bounds reads in the ASN1 code when presented with
4670 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4672 If verify callback ignores invalid public key errors don't try to check
4673 certificate signature with the NULL public key.
4677 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4678 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4682 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4683 extra data after the compression methods not only for TLS 1.0
4684 but also for SSL 3.0 (as required by the specification).
4685 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4687 *) Change X509_certificate_type() to mark the key as exported/exportable
4688 when it's 512 *bits* long, not 512 bytes.
4691 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4693 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4694 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4695 a protocol version number mismatch like a decryption error
4696 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4699 *) Turn on RSA blinding by default in the default implementation
4700 to avoid a timing attack. Applications that don't want it can call
4701 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4702 They would be ill-advised to do so in most cases.
4703 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4705 *) Change RSA blinding code so that it works when the PRNG is not
4706 seeded (in this case, the secret RSA exponent is abused as
4707 an unpredictable seed -- if it is not unpredictable, there
4708 is no point in blinding anyway). Make RSA blinding thread-safe
4709 by remembering the creator's thread ID in rsa->blinding and
4710 having all other threads use local one-time blinding factors
4711 (this requires more computation than sharing rsa->blinding, but
4712 avoids excessive locking; and if an RSA object is not shared
4713 between threads, blinding will still be very fast).
4716 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4718 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4719 via timing by performing a MAC computation even if incorrrect
4720 block cipher padding has been found. This is a countermeasure
4721 against active attacks where the attacker has to distinguish
4722 between bad padding and a MAC verification error. (CVE-2003-0078)
4724 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4725 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4726 Martin Vuagnoux (EPFL, Ilion)]
4728 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4730 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4731 memory from it's contents. This is done with a counter that will
4732 place alternating values in each byte. This can be used to solve
4733 two issues: 1) the removal of calls to memset() by highly optimizing
4734 compilers, and 2) cleansing with other values than 0, since those can
4735 be read through on certain media, for example a swap space on disk.
4738 *) Bugfix: client side session caching did not work with external caching,
4739 because the session->cipher setting was not restored when reloading
4740 from the external cache. This problem was masked, when
4741 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4742 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4745 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4746 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4747 [Zeev Lieber <zeev-l@yahoo.com>]
4749 *) Undo an undocumented change introduced in 0.9.6e which caused
4750 repeated calls to OpenSSL_add_all_ciphers() and
4751 OpenSSL_add_all_digests() to be ignored, even after calling
4755 *) Change the default configuration reader to deal with last line not
4756 being properly terminated.
4759 *) Change X509_NAME_cmp() so it applies the special rules on handling
4760 DN values that are of type PrintableString, as well as RDNs of type
4761 emailAddress where the value has the type ia5String.
4762 [stefank@valicert.com via Richard Levitte]
4764 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4765 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4766 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4767 the bitwise-OR of the two for use by the majority of applications
4768 wanting this behaviour, and update the docs. The documented
4769 behaviour and actual behaviour were inconsistent and had been
4770 changing anyway, so this is more a bug-fix than a behavioural
4772 [Geoff Thorpe, diagnosed by Nadav Har'El]
4774 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4775 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4778 *) Fix initialization code race conditions in
4779 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4780 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4781 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4782 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4783 ssl2_get_cipher_by_char(),
4784 ssl3_get_cipher_by_char().
4785 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4787 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4788 the cached sessions are flushed, as the remove_cb() might use ex_data
4789 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4790 (see [openssl.org #212]).
4791 [Geoff Thorpe, Lutz Jaenicke]
4793 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4794 length, instead of the encoding length to d2i_ASN1_OBJECT.
4797 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4799 *) [In 0.9.6g-engine release:]
4800 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4801 [Lynn Gazis <lgazis@rainbow.com>]
4803 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4805 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4806 and get fix the header length calculation.
4807 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4808 Alon Kantor <alonk@checkpoint.com> (and others),
4811 *) Use proper error handling instead of 'assertions' in buffer
4812 overflow checks added in 0.9.6e. This prevents DoS (the
4813 assertions could call abort()).
4814 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4816 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4818 *) Add various sanity checks to asn1_get_length() to reject
4819 the ASN1 length bytes if they exceed sizeof(long), will appear
4820 negative or the content length exceeds the length of the
4822 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4824 *) Fix cipher selection routines: ciphers without encryption had no flags
4825 for the cipher strength set and where therefore not handled correctly
4826 by the selection routines (PR #130).
4829 *) Fix EVP_dsa_sha macro.
4833 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4834 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4835 that was added in OpenSSL 0.9.6d.
4837 As the countermeasure turned out to be incompatible with some
4838 broken SSL implementations, the new option is part of SSL_OP_ALL.
4839 SSL_OP_ALL is usually employed when compatibility with weird SSL
4840 implementations is desired (e.g. '-bugs' option to 's_client' and
4841 's_server'), so the new option is automatically set in many
4845 *) Changes in security patch:
4847 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4848 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4849 Air Force Materiel Command, USAF, under agreement number
4852 *) Add various sanity checks to asn1_get_length() to reject
4853 the ASN1 length bytes if they exceed sizeof(long), will appear
4854 negative or the content length exceeds the length of the
4855 supplied buffer. (CVE-2002-0659)
4856 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4858 *) Assertions for various potential buffer overflows, not known to
4860 [Ben Laurie (CHATS)]
4862 *) Various temporary buffers to hold ASCII versions of integers were
4863 too small for 64 bit platforms. (CVE-2002-0655)
4864 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4866 *) Remote buffer overflow in SSL3 protocol - an attacker could
4867 supply an oversized session ID to a client. (CVE-2002-0656)
4868 [Ben Laurie (CHATS)]
4870 *) Remote buffer overflow in SSL2 protocol - an attacker could
4871 supply an oversized client master key. (CVE-2002-0656)
4872 [Ben Laurie (CHATS)]
4874 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4876 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4877 encoded as NULL) with id-dsa-with-sha1.
4878 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4880 *) Check various X509_...() return values in apps/req.c.
4881 [Nils Larsch <nla@trustcenter.de>]
4883 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4884 an end-of-file condition would erronously be flagged, when the CRLF
4885 was just at the end of a processed block. The bug was discovered when
4886 processing data through a buffering memory BIO handing the data to a
4887 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4888 <ptsekov@syntrex.com> and Nedelcho Stanev.
4891 *) Implement a countermeasure against a vulnerability recently found
4892 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4893 before application data chunks to avoid the use of known IVs
4894 with data potentially chosen by the attacker.
4897 *) Fix length checks in ssl3_get_client_hello().
4900 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4901 to prevent ssl3_read_internal() from incorrectly assuming that
4902 ssl3_read_bytes() found application data while handshake
4903 processing was enabled when in fact s->s3->in_read_app_data was
4904 merely automatically cleared during the initial handshake.
4905 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4907 *) Fix object definitions for Private and Enterprise: they were not
4908 recognized in their shortname (=lowercase) representation. Extend
4909 obj_dat.pl to issue an error when using undefined keywords instead
4910 of silently ignoring the problem (Svenning Sorensen
4911 <sss@sss.dnsalias.net>).
4914 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4915 generators, i.e. generators other than 2 and 5. (Previously, the
4916 code did not properly initialise the 'add' and 'rem' values to
4917 BN_generate_prime().)
4919 In the new general case, we do not insist that 'generator' is
4920 actually a primitive root: This requirement is rather pointless;
4921 a generator of the order-q subgroup is just as good, if not
4925 *) Map new X509 verification errors to alerts. Discovered and submitted by
4926 Tom Wu <tom@arcot.com>.
4929 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4930 returning non-zero before the data has been completely received
4931 when using non-blocking I/O.
4932 [Bodo Moeller; problem pointed out by John Hughes]
4934 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4935 [Ben Laurie, Lutz Jaenicke]
4937 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4938 Yoram Zahavi <YoramZ@gilian.com>).
4941 *) Add information about CygWin 1.3 and on, and preserve proper
4942 configuration for the versions before that.
4943 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4945 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4946 check whether we deal with a copy of a session and do not delete from
4947 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4948 <izhar@checkpoint.com>.
4951 *) Do not store session data into the internal session cache, if it
4952 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4953 flag is set). Proposed by Aslam <aslam@funk.com>.
4956 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4960 *) [In 0.9.6d-engine release:]
4961 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4962 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4964 *) Add the configuration target linux-s390x.
4965 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4967 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4968 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4969 variable as an indication that a ClientHello message has been
4970 received. As the flag value will be lost between multiple
4971 invocations of ssl3_accept when using non-blocking I/O, the
4972 function may not be aware that a handshake has actually taken
4973 place, thus preventing a new session from being added to the
4976 To avoid this problem, we now set s->new_session to 2 instead of
4977 using a local variable.
4978 [Lutz Jaenicke, Bodo Moeller]
4980 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4981 if the SSL_R_LENGTH_MISMATCH error is detected.
4982 [Geoff Thorpe, Bodo Moeller]
4984 *) New 'shared_ldflag' column in Configure platform table.
4987 *) Fix EVP_CIPHER_mode macro.
4988 ["Dan S. Camper" <dan@bti.net>]
4990 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4991 type, we must throw them away by setting rr->length to 0.
4992 [D P Chang <dpc@qualys.com>]
4994 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4996 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4997 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4998 worked incorrectly for those cases where range = 10..._2 and
4999 3*range is two bits longer than range.)
5002 *) Only add signing time to PKCS7 structures if it is not already
5006 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5007 OBJ_ld_ce should be OBJ_id_ce.
5008 Also some ip-pda OIDs in crypto/objects/objects.txt were
5009 incorrect (cf. RFC 3039).
5010 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5012 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5013 returns early because it has nothing to do.
5014 [Andy Schneider <andy.schneider@bjss.co.uk>]
5016 *) [In 0.9.6c-engine release:]
5017 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5018 [Andy Schneider <andy.schneider@bjss.co.uk>]
5020 *) [In 0.9.6c-engine release:]
5021 Add support for Cryptographic Appliance's keyserver technology.
5022 (Use engine 'keyclient')
5023 [Cryptographic Appliances and Geoff Thorpe]
5025 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5026 is called via tools/c89.sh because arguments have to be
5027 rearranged (all '-L' options must appear before the first object
5029 [Richard Shapiro <rshapiro@abinitio.com>]
5031 *) [In 0.9.6c-engine release:]
5032 Add support for Broadcom crypto accelerator cards, backported
5034 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5036 *) [In 0.9.6c-engine release:]
5037 Add support for SureWare crypto accelerator cards from
5038 Baltimore Technologies. (Use engine 'sureware')
5039 [Baltimore Technologies and Mark Cox]
5041 *) [In 0.9.6c-engine release:]
5042 Add support for crypto accelerator cards from Accelerated
5043 Encryption Processing, www.aep.ie. (Use engine 'aep')
5044 [AEP Inc. and Mark Cox]
5046 *) Add a configuration entry for gcc on UnixWare.
5047 [Gary Benson <gbenson@redhat.com>]
5049 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5050 messages are stored in a single piece (fixed-length part and
5051 variable-length part combined) and fix various bugs found on the way.
5054 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5055 instead. BIO_gethostbyname() does not know what timeouts are
5056 appropriate, so entries would stay in cache even when they have
5058 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5060 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5061 faced with a pathologically small ClientHello fragment that does
5062 not contain client_version: Instead of aborting with an error,
5063 simply choose the highest available protocol version (i.e.,
5064 TLS 1.0 unless it is disabled). In practice, ClientHello
5065 messages are never sent like this, but this change gives us
5066 strictly correct behaviour at least for TLS.
5069 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5070 never resets s->method to s->ctx->method when called from within
5071 one of the SSL handshake functions.
5072 [Bodo Moeller; problem pointed out by Niko Baric]
5074 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5075 (sent using the client's version number) if client_version is
5076 smaller than the protocol version in use. Also change
5077 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5078 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5079 the client will at least see that alert.
5082 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5086 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5087 client receives HelloRequest while in a handshake.
5088 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5090 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5091 should end in 'break', not 'goto end' which circuments various
5092 cleanups done in state SSL_ST_OK. But session related stuff
5093 must be disabled for SSL_ST_OK in the case that we just sent a
5096 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5097 before just sending a HelloRequest.
5098 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5100 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5101 reveal whether illegal block cipher padding was found or a MAC
5102 verification error occured. (Neither SSLerr() codes nor alerts
5103 are directly visible to potential attackers, but the information
5104 may leak via logfiles.)
5106 Similar changes are not required for the SSL 2.0 implementation
5107 because the number of padding bytes is sent in clear for SSL 2.0,
5108 and the extra bytes are just ignored. However ssl/s2_pkt.c
5109 failed to verify that the purported number of padding bytes is in
5113 *) Add OpenUNIX-8 support including shared libraries
5114 (Boyd Lynn Gerber <gerberb@zenez.com>).
5117 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5118 'wristwatch attack' using huge encoding parameters (cf.
5119 James H. Manger's CRYPTO 2001 paper). Note that the
5120 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5121 encoding parameters and hence was not vulnerable.
5124 *) BN_sqr() bug fix.
5125 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5127 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5128 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5129 followed by modular reduction.
5130 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5132 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5133 equivalent based on BN_pseudo_rand() instead of BN_rand().
5136 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5137 This function was broken, as the check for a new client hello message
5138 to handle SGC did not allow these large messages.
5139 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5142 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5145 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5146 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5149 *) Rework the configuration and shared library support for Tru64 Unix.
5150 The configuration part makes use of modern compiler features and
5151 still retains old compiler behavior for those that run older versions
5152 of the OS. The shared library support part includes a variant that
5153 uses the RPATH feature, and is available through the special
5154 configuration target "alpha-cc-rpath", which will never be selected
5156 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5158 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5159 with the same message size as in ssl3_get_certificate_request().
5160 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5161 messages might inadvertently be reject as too long.
5162 [Petr Lampa <lampa@fee.vutbr.cz>]
5164 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5167 *) Modified SSL library such that the verify_callback that has been set
5168 specificly for an SSL object with SSL_set_verify() is actually being
5169 used. Before the change, a verify_callback set with this function was
5170 ignored and the verify_callback() set in the SSL_CTX at the time of
5171 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5172 to allow the necessary settings.
5175 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5176 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5177 done automatically (in contradiction to the requirements of the C
5178 standard). This made problems when used from OpenSSH.
5181 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5182 dh->length and always used
5184 BN_rand_range(priv_key, dh->p).
5186 BN_rand_range() is not necessary for Diffie-Hellman, and this
5187 specific range makes Diffie-Hellman unnecessarily inefficient if
5188 dh->length (recommended exponent length) is much smaller than the
5189 length of dh->p. We could use BN_rand_range() if the order of
5190 the subgroup was stored in the DH structure, but we only have
5195 BN_rand(priv_key, l, ...)
5197 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5203 RSA_eay_public_encrypt
5204 RSA_eay_private_decrypt
5205 RSA_eay_private_encrypt (signing)
5206 RSA_eay_public_decrypt (signature verification)
5208 (default implementations for RSA_public_encrypt,
5209 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5210 always reject numbers >= n.
5213 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5214 to synchronize access to 'locking_thread'. This is necessary on
5215 systems where access to 'locking_thread' (an 'unsigned long'
5216 variable) is not atomic.
5219 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5220 *before* setting the 'crypto_lock_rand' flag. The previous code had
5221 a race condition if 0 is a valid thread ID.
5222 [Travis Vitek <vitek@roguewave.com>]
5224 *) Add support for shared libraries under Irix.
5225 [Albert Chin-A-Young <china@thewrittenword.com>]
5227 *) Add configuration option to build on Linux on both big-endian and
5229 [Ralf Baechle <ralf@uni-koblenz.de>]
5231 *) Add the possibility to create shared libraries on HP-UX.
5234 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5236 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5237 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5238 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5239 PRNG state recovery was possible based on the output of
5240 one PRNG request appropriately sized to gain knowledge on
5241 'md' followed by enough consecutive 1-byte PRNG requests
5242 to traverse all of 'state'.
5244 1. When updating 'md_local' (the current thread's copy of 'md')
5245 during PRNG output generation, hash all of the previous
5246 'md_local' value, not just the half used for PRNG output.
5248 2. Make the number of bytes from 'state' included into the hash
5249 independent from the number of PRNG bytes requested.
5251 The first measure alone would be sufficient to avoid
5252 Markku-Juhani's attack. (Actually it had never occurred
5253 to me that the half of 'md_local' used for chaining was the
5254 half from which PRNG output bytes were taken -- I had always
5255 assumed that the secret half would be used.) The second
5256 measure makes sure that additional data from 'state' is never
5257 mixed into 'md_local' in small portions; this heuristically
5258 further strengthens the PRNG.
5261 *) Fix crypto/bn/asm/mips3.s.
5264 *) When only the key is given to "enc", the IV is undefined. Print out
5265 an error message in this case.
5268 *) Handle special case when X509_NAME is empty in X509 printing routines.
5271 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5272 positive and less than q.
5275 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5276 used: it isn't thread safe and the add_lock_callback should handle
5278 [Paul Rose <Paul.Rose@bridge.com>]
5280 *) Verify that incoming data obeys the block size in
5281 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5285 [Ulf Möller, Bodo Möller]
5287 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5288 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5289 when fixing the server behaviour for backwards-compatible 'client
5290 hello' messages. (Note that the attack is impractical against
5291 SSL 3.0 and TLS 1.0 anyway because length and version checking
5292 means that the probability of guessing a valid ciphertext is
5293 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5296 Before 0.9.5, the countermeasure (hide the error by generating a
5297 random 'decryption result') did not work properly because
5298 ERR_clear_error() was missing, meaning that SSL_get_error() would
5299 detect the supposedly ignored error.
5301 Both problems are now fixed.
5304 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5305 (previously it was 1024).
5308 *) Fix for compatibility mode trust settings: ignore trust settings
5309 unless some valid trust or reject settings are present.
5312 *) Fix for blowfish EVP: its a variable length cipher.
5315 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5316 parameters in DSA public key structures and return an error in the
5317 DSA routines if parameters are absent.
5320 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5321 in the current directory if neither $RANDFILE nor $HOME was set.
5322 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5323 caused some confusion to Windows users who haven't defined $HOME.
5324 Thus RAND_file_name() is changed again: e_os.h can define a
5325 DEFAULT_HOME, which will be used if $HOME is not set.
5326 For Windows, we use "C:"; on other platforms, we still require
5327 environment variables.
5329 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5330 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5331 having multiple threads call RAND_poll() concurrently.
5334 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5335 combination of a flag and a thread ID variable.
5336 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5337 flag), *other* threads can enter ssleay_add_bytes without obeying
5338 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5339 that they do not hold after the first thread unsets add_do_not_lock).
5342 *) Change bctest again: '-x' expressions are not available in all
5346 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5348 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5349 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5351 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5352 the default extension for executables, if any. Also, make the perl
5353 scripts that use symlink() to test if it really exists and use "cp"
5354 if it doesn't. All this made OpenSSL compilable and installable in
5358 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5359 If SEQUENCE is length is indefinite just set c->slen to the total
5360 amount of data available.
5361 [Steve Henson, reported by shige@FreeBSD.org]
5362 [This change does not apply to 0.9.7.]
5364 *) Change bctest to avoid here-documents inside command substitution
5365 (workaround for FreeBSD /bin/sh bug).
5366 For compatibility with Ultrix, avoid shell functions (introduced
5367 in the bctest version that searches along $PATH).
5370 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5371 with des_encrypt() defined on some operating systems, like Solaris
5375 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5376 On the Importance of Eliminating Errors in Cryptographic
5377 Computations, J. Cryptology 14 (2001) 2, 101-119,
5378 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5381 *) MIPS assembler BIGNUM division bug fix.
5384 *) Disabled incorrect Alpha assembler code.
5387 *) Fix PKCS#7 decode routines so they correctly update the length
5388 after reading an EOC for the EXPLICIT tag.
5390 [This change does not apply to 0.9.7.]
5392 *) Fix bug in PKCS#12 key generation routines. This was triggered
5393 if a 3DES key was generated with a 0 initial byte. Include
5394 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5395 (but broken) behaviour.
5398 *) Enhance bctest to search for a working bc along $PATH and print
5400 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5402 *) Fix memory leaks in err.c: free err_data string if necessary;
5403 don't write to the wrong index in ERR_set_error_data.
5406 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5410 *) Replace rdtsc with _emit statements for VC++ version 5.
5411 [Jeremy Cooper <jeremy@baymoo.org>]
5413 *) Make it possible to reuse SSLv2 sessions.
5416 *) In copy_email() check for >= 0 as a return value for
5417 X509_NAME_get_index_by_NID() since 0 is a valid index.
5418 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5420 *) Avoid coredump with unsupported or invalid public keys by checking if
5421 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5422 PKCS7_verify() fails with non detached data.
5425 *) Don't use getenv in library functions when run as setuid/setgid.
5426 New function OPENSSL_issetugid().
5429 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5430 due to incorrect handling of multi-threading:
5432 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5434 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5436 3. Count how many times MemCheck_off() has been called so that
5437 nested use can be treated correctly. This also avoids
5438 inband-signalling in the previous code (which relied on the
5439 assumption that thread ID 0 is impossible).
5442 *) Add "-rand" option also to s_client and s_server.
5445 *) Fix CPU detection on Irix 6.x.
5446 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5447 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5449 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5452 [This change does not apply to 0.9.7.]
5454 *) Use the cached encoding of an X509_NAME structure rather than
5455 copying it. This is apparently the reason for the libsafe "errors"
5456 but the code is actually correct.
5459 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5460 Bleichenbacher's DSA attack.
5461 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5462 to be set and top=0 forces the highest bit to be set; top=-1 is new
5463 and leaves the highest bit random.
5464 [Ulf Moeller, Bodo Moeller]
5466 *) In the NCONF_...-based implementations for CONF_... queries
5467 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5468 a temporary CONF structure with the data component set to NULL
5469 (which gives segmentation faults in lh_retrieve).
5470 Instead, use NULL for the CONF pointer in CONF_get_string and
5471 CONF_get_number (which may use environment variables) and directly
5472 return NULL from CONF_get_section.
5475 *) Fix potential buffer overrun for EBCDIC.
5478 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5479 keyUsage if basicConstraints absent for a CA.
5482 *) Make SMIME_write_PKCS7() write mail header values with a format that
5483 is more generally accepted (no spaces before the semicolon), since
5484 some programs can't parse those values properly otherwise. Also make
5485 sure BIO's that break lines after each write do not create invalid
5489 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5490 macros previously used would not encode an empty SEQUENCE OF
5491 and break the signature.
5493 [This change does not apply to 0.9.7.]
5495 *) Zero the premaster secret after deriving the master secret in
5499 *) Add some EVP_add_digest_alias registrations (as found in
5500 OpenSSL_add_all_digests()) to SSL_library_init()
5501 aka OpenSSL_add_ssl_algorithms(). This provides improved
5502 compatibility with peers using X.509 certificates
5503 with unconventional AlgorithmIdentifier OIDs.
5506 *) Fix for Irix with NO_ASM.
5507 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5509 *) ./config script fixes.
5510 [Ulf Moeller, Richard Levitte]
5512 *) Fix 'openssl passwd -1'.
5515 *) Change PKCS12_key_gen_asc() so it can cope with non null
5516 terminated strings whose length is passed in the passlen
5517 parameter, for example from PEM callbacks. This was done
5518 by adding an extra length parameter to asc2uni().
5519 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5521 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5522 call failed, free the DSA structure.
5525 *) Fix to uni2asc() to cope with zero length Unicode strings.
5526 These are present in some PKCS#12 files.
5529 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5530 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5531 when writing a 32767 byte record.
5532 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5534 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5535 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5537 (RSA objects have a reference count access to which is protected
5538 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5539 so they are meant to be shared between threads.)
5540 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5541 "Reddie, Steven" <Steven.Reddie@ca.com>]
5543 *) Fix a deadlock in CRYPTO_mem_leaks().
5546 *) Use better test patterns in bntest.
5549 *) rand_win.c fix for Borland C.
5552 *) BN_rshift bugfix for n == 0.
5555 *) Add a 'bctest' script that checks for some known 'bc' bugs
5556 so that 'make test' does not abort just because 'bc' is broken.
5559 *) Store verify_result within SSL_SESSION also for client side to
5560 avoid potential security hole. (Re-used sessions on the client side
5561 always resulted in verify_result==X509_V_OK, not using the original
5562 result of the server certificate verification.)
5565 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5566 SSL3_RT_APPLICATION_DATA, return 0.
5567 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5571 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5572 releases, have been re-implemented by renaming the previous
5573 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5574 and ssl3_read_internal, respectively, and adding 'peek' parameters
5575 to them. The new ssl[23]_{read,peek} functions are calls to
5576 ssl[23]_read_internal with the 'peek' flag set appropriately.
5577 A 'peek' parameter has also been added to ssl3_read_bytes, which
5578 does the actual work for ssl3_read_internal.
5581 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5582 the method-specific "init()" handler. Also clean up ex_data after
5583 calling the method-specific "finish()" handler. Previously, this was
5584 happening the other way round.
5587 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5588 The previous value, 12, was not always sufficient for BN_mod_exp().
5591 *) Make sure that shared libraries get the internal name engine with
5592 the full version number and not just 0. This should mark the
5593 shared libraries as not backward compatible. Of course, this should
5594 be changed again when we can guarantee backward binary compatibility.
5597 *) Fix typo in get_cert_by_subject() in by_dir.c
5598 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5600 *) Rework the system to generate shared libraries:
5602 - Make note of the expected extension for the shared libraries and
5603 if there is a need for symbolic links from for example libcrypto.so.0
5604 to libcrypto.so.0.9.7. There is extended info in Configure for
5607 - Make as few rebuilds of the shared libraries as possible.
5609 - Still avoid linking the OpenSSL programs with the shared libraries.
5611 - When installing, install the shared libraries separately from the
5615 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5617 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5618 and not in SSL_clear because the latter is also used by the
5619 accept/connect functions; previously, the settings made by
5620 SSL_set_read_ahead would be lost during the handshake.
5621 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5623 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5624 Previously, it would create entries for disableed algorithms no
5628 *) Added several new manual pages for SSL_* function.
5631 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5633 *) In ssl23_get_client_hello, generate an error message when faced
5634 with an initial SSL 3.0/TLS record that is too small to contain the
5635 first two bytes of the ClientHello message, i.e. client_version.
5636 (Note that this is a pathologic case that probably has never happened
5637 in real life.) The previous approach was to use the version number
5638 from the record header as a substitute; but our protocol choice
5639 should not depend on that one because it is not authenticated
5640 by the Finished messages.
5643 *) More robust randomness gathering functions for Windows.
5644 [Jeffrey Altman <jaltman@columbia.edu>]
5646 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5647 not set then we don't setup the error code for issuer check errors
5648 to avoid possibly overwriting other errors which the callback does
5649 handle. If an application does set the flag then we assume it knows
5650 what it is doing and can handle the new informational codes
5654 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5655 a general "ANY" type, as such it should be able to decode anything
5656 including tagged types. However it didn't check the class so it would
5657 wrongly interpret tagged types in the same way as their universal
5658 counterpart and unknown types were just rejected. Changed so that the
5659 tagged and unknown types are handled in the same way as a SEQUENCE:
5660 that is the encoding is stored intact. There is also a new type
5661 "V_ASN1_OTHER" which is used when the class is not universal, in this
5662 case we have no idea what the actual type is so we just lump them all
5666 *) On VMS, stdout may very well lead to a file that is written to
5667 in a record-oriented fashion. That means that every write() will
5668 write a separate record, which will be read separately by the
5669 programs trying to read from it. This can be very confusing.
5671 The solution is to put a BIO filter in the way that will buffer
5672 text until a linefeed is reached, and then write everything a
5673 line at a time, so every record written will be an actual line,
5674 not chunks of lines and not (usually doesn't happen, but I've
5675 seen it once) several lines in one record. BIO_f_linebuffer() is
5678 Currently, it's a VMS-only method, because that's where it has
5679 been tested well enough.
5682 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5683 it can return incorrect results.
5684 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5685 but it was in 0.9.6-beta[12].)
5688 *) Disable the check for content being present when verifying detached
5689 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5690 include zero length content when signing messages.
5693 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5694 BIO_ctrl (for BIO pairs).
5697 *) Add DSO method for VMS.
5700 *) Bug fix: Montgomery multiplication could produce results with the
5704 *) Add RPM specification openssl.spec and modify it to build three
5705 packages. The default package contains applications, application
5706 documentation and run-time libraries. The devel package contains
5707 include files, static libraries and function documentation. The
5708 doc package contains the contents of the doc directory. The original
5709 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5712 *) Add a large number of documentation files for many SSL routines.
5713 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5715 *) Add a configuration entry for Sony News 4.
5716 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5718 *) Don't set the two most significant bits to one when generating a
5719 random number < q in the DSA library.
5722 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5723 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5724 the underlying transport is blocking) if a handshake took place.
5725 (The default behaviour is needed by applications such as s_client
5726 and s_server that use select() to determine when to use SSL_read;
5727 but for applications that know in advance when to expect data, it
5728 just makes things more complicated.)
5731 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5735 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5736 work better on such systems.
5737 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5739 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5740 Update PKCS12_parse() so it copies the friendlyName and the
5741 keyid to the certificates aux info.
5744 *) Fix bug in PKCS7_verify() which caused an infinite loop
5745 if there was more than one signature.
5746 [Sven Uszpelkat <su@celocom.de>]
5748 *) Major change in util/mkdef.pl to include extra information
5749 about each symbol, as well as presentig variables as well
5750 as functions. This change means that there's n more need
5751 to rebuild the .num files when some algorithms are excluded.
5754 *) Allow the verify time to be set by an application,
5755 rather than always using the current time.
5758 *) Phase 2 verify code reorganisation. The certificate
5759 verify code now looks up an issuer certificate by a
5760 number of criteria: subject name, authority key id
5761 and key usage. It also verifies self signed certificates
5762 by the same criteria. The main comparison function is
5763 X509_check_issued() which performs these checks.
5765 Lot of changes were necessary in order to support this
5766 without completely rewriting the lookup code.
5768 Authority and subject key identifier are now cached.
5770 The LHASH 'certs' is X509_STORE has now been replaced
5771 by a STACK_OF(X509_OBJECT). This is mainly because an
5772 LHASH can't store or retrieve multiple objects with
5773 the same hash value.
5775 As a result various functions (which were all internal
5776 use only) have changed to handle the new X509_STORE
5777 structure. This will break anything that messed round
5778 with X509_STORE internally.
5780 The functions X509_STORE_add_cert() now checks for an
5781 exact match, rather than just subject name.
5783 The X509_STORE API doesn't directly support the retrieval
5784 of multiple certificates matching a given criteria, however
5785 this can be worked round by performing a lookup first
5786 (which will fill the cache with candidate certificates)
5787 and then examining the cache for matches. This is probably
5788 the best we can do without throwing out X509_LOOKUP
5789 entirely (maybe later...).
5791 The X509_VERIFY_CTX structure has been enhanced considerably.
5793 All certificate lookup operations now go via a get_issuer()
5794 callback. Although this currently uses an X509_STORE it
5795 can be replaced by custom lookups. This is a simple way
5796 to bypass the X509_STORE hackery necessary to make this
5797 work and makes it possible to use more efficient techniques
5798 in future. A very simple version which uses a simple
5799 STACK for its trusted certificate store is also provided
5800 using X509_STORE_CTX_trusted_stack().
5802 The verify_cb() and verify() callbacks now have equivalents
5803 in the X509_STORE_CTX structure.
5805 X509_STORE_CTX also has a 'flags' field which can be used
5806 to customise the verify behaviour.
5809 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5810 excludes S/MIME capabilities.
5813 *) When a certificate request is read in keep a copy of the
5814 original encoding of the signed data and use it when outputing
5815 again. Signatures then use the original encoding rather than
5816 a decoded, encoded version which may cause problems if the
5817 request is improperly encoded.
5820 *) For consistency with other BIO_puts implementations, call
5821 buffer_write(b, ...) directly in buffer_puts instead of calling
5824 In BIO_puts, increment b->num_write as in BIO_write.
5825 [Peter.Sylvester@EdelWeb.fr]
5827 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5828 BN_zero, we may not return a BIGNUM with an array consisting of
5832 *) Avoid calling abort() from within the library when problems are
5833 detected, except if preprocessor symbols have been defined
5834 (such as REF_CHECK, BN_DEBUG etc.).
5837 *) New openssl application 'rsautl'. This utility can be
5838 used for low level RSA operations. DER public key
5839 BIO/fp routines also added.
5842 *) New Configure entry and patches for compiling on QNX 4.
5843 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5845 *) A demo state-machine implementation was sponsored by
5846 Nuron (http://www.nuron.com/) and is now available in
5847 demos/state_machine.
5850 *) New options added to the 'dgst' utility for signature
5851 generation and verification.
5854 *) Unrecognized PKCS#7 content types are now handled via a
5855 catch all ASN1_TYPE structure. This allows unsupported
5856 types to be stored as a "blob" and an application can
5857 encode and decode it manually.
5860 *) Fix various signed/unsigned issues to make a_strex.c
5862 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5864 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5865 length if passed a buffer. ASN1_INTEGER_to_BN failed
5866 if passed a NULL BN and its argument was negative.
5867 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5869 *) Modification to PKCS#7 encoding routines to output definite
5870 length encoding. Since currently the whole structures are in
5871 memory there's not real point in using indefinite length
5872 constructed encoding. However if OpenSSL is compiled with
5873 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5876 *) Added BIO_vprintf() and BIO_vsnprintf().
5879 *) Added more prefixes to parse for in the the strings written
5880 through a logging bio, to cover all the levels that are available
5881 through syslog. The prefixes are now:
5883 PANIC, EMERG, EMR => LOG_EMERG
5884 ALERT, ALR => LOG_ALERT
5885 CRIT, CRI => LOG_CRIT
5886 ERROR, ERR => LOG_ERR
5887 WARNING, WARN, WAR => LOG_WARNING
5888 NOTICE, NOTE, NOT => LOG_NOTICE
5889 INFO, INF => LOG_INFO
5890 DEBUG, DBG => LOG_DEBUG
5892 and as before, if none of those prefixes are present at the
5893 beginning of the string, LOG_ERR is chosen.
5895 On Win32, the LOG_* levels are mapped according to this:
5897 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5898 LOG_WARNING => EVENTLOG_WARNING_TYPE
5899 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5903 *) Made it possible to reconfigure with just the configuration
5904 argument "reconf" or "reconfigure". The command line arguments
5905 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5906 and are retrieved from there when reconfiguring.
5910 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5912 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5915 *) The obj_dat.pl script was messing up the sorting of object
5916 names. The reason was that it compared the quoted version
5917 of strings as a result "OCSP" > "OCSP Signing" because
5918 " > SPACE. Changed script to store unquoted versions of
5919 names and add quotes on output. It was also omitting some
5920 names from the lookup table if they were given a default
5921 value (that is if SN is missing it is given the same
5922 value as LN and vice versa), these are now added on the
5923 grounds that if an object has a name we should be able to
5924 look it up. Finally added warning output when duplicate
5925 short or long names are found.
5928 *) Changes needed for Tandem NSK.
5929 [Scott Uroff <scott@xypro.com>]
5931 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5932 RSA_padding_check_SSLv23(), special padding was never detected
5933 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5934 version rollback attacks was not effective.
5936 In s23_clnt.c, don't use special rollback-attack detection padding
5937 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5938 client; similarly, in s23_srvr.c, don't do the rollback check if
5939 SSL 2.0 is the only protocol enabled in the server.
5942 *) Make it possible to get hexdumps of unprintable data with 'openssl
5943 asn1parse'. By implication, the functions ASN1_parse_dump() and
5944 BIO_dump_indent() are added.
5947 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5948 these print out strings and name structures based on various
5949 flags including RFC2253 support and proper handling of
5950 multibyte characters. Added options to the 'x509' utility
5951 to allow the various flags to be set.
5954 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5955 Also change the functions X509_cmp_current_time() and
5956 X509_gmtime_adj() work with an ASN1_TIME structure,
5957 this will enable certificates using GeneralizedTime in validity
5958 dates to be checked.
5961 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5962 negative public key encodings) on by default,
5963 NO_NEG_PUBKEY_BUG can be set to disable it.
5966 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5967 content octets. An i2c_ASN1_OBJECT is unnecessary because
5968 the encoding can be trivially obtained from the structure.
5971 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5972 not read locks (CRYPTO_r_[un]lock).
5975 *) A first attempt at creating official support for shared
5976 libraries through configuration. I've kept it so the
5977 default is static libraries only, and the OpenSSL programs
5978 are always statically linked for now, but there are
5979 preparations for dynamic linking in place.
5980 This has been tested on Linux and Tru64.
5983 *) Randomness polling function for Win9x, as described in:
5984 Peter Gutmann, Software Generation of Practically Strong
5988 *) Fix so PRNG is seeded in req if using an already existing
5992 *) New options to smime application. -inform and -outform
5993 allow alternative formats for the S/MIME message including
5994 PEM and DER. The -content option allows the content to be
5995 specified separately. This should allow things like Netscape
5996 form signing output easier to verify.
5999 *) Fix the ASN1 encoding of tags using the 'long form'.
6002 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6003 STRING types. These convert content octets to and from the
6004 underlying type. The actual tag and length octets are
6005 already assumed to have been read in and checked. These
6006 are needed because all other string types have virtually
6007 identical handling apart from the tag. By having versions
6008 of the ASN1 functions that just operate on content octets
6009 IMPLICIT tagging can be handled properly. It also allows
6010 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6011 and ASN1_INTEGER are identical apart from the tag.
6014 *) Change the handling of OID objects as follows:
6016 - New object identifiers are inserted in objects.txt, following
6017 the syntax given in objects.README.
6018 - objects.pl is used to process obj_mac.num and create a new
6020 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6023 This is currently kind of a hack, and the perl code in objects.pl
6024 isn't very elegant, but it works as I intended. The simplest way
6025 to check that it worked correctly is to look in obj_dat.h and
6026 check the array nid_objs and make sure the objects haven't moved
6027 around (this is important!). Additions are OK, as well as
6028 consistent name changes.
6031 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6034 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6035 The given file adds to whatever has already been seeded into the
6036 random pool through the RANDFILE configuration file option or
6037 environment variable, or the default random state file.
6040 *) mkstack.pl now sorts each macro group into lexical order.
6041 Previously the output order depended on the order the files
6042 appeared in the directory, resulting in needless rewriting
6046 *) Patches to make OpenSSL compile under Win32 again. Mostly
6047 work arounds for the VC++ problem that it treats func() as
6048 func(void). Also stripped out the parts of mkdef.pl that
6049 added extra typesafe functions: these no longer exist.
6052 *) Reorganisation of the stack code. The macros are now all
6053 collected in safestack.h . Each macro is defined in terms of
6054 a "stack macro" of the form SKM_<name>(type, a, b). The
6055 DEBUG_SAFESTACK is now handled in terms of function casts,
6056 this has the advantage of retaining type safety without the
6057 use of additional functions. If DEBUG_SAFESTACK is not defined
6058 then the non typesafe macros are used instead. Also modified the
6059 mkstack.pl script to handle the new form. Needs testing to see
6060 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6061 the default if no major problems. Similar behaviour for ASN1_SET_OF
6062 and PKCS12_STACK_OF.
6065 *) When some versions of IIS use the 'NET' form of private key the
6066 key derivation algorithm is different. Normally MD5(password) is
6067 used as a 128 bit RC4 key. In the modified case
6068 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6069 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6070 as the old Netscape_RSA functions except they have an additional
6071 'sgckey' parameter which uses the modified algorithm. Also added
6072 an -sgckey command line option to the rsa utility. Thanks to
6073 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6074 algorithm to openssl-dev.
6077 *) The evp_local.h macros were using 'c.##kname' which resulted in
6078 invalid expansion on some systems (SCO 5.0.5 for example).
6079 Corrected to 'c.kname'.
6080 [Phillip Porch <root@theporch.com>]
6082 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6083 a STACK of email addresses from a certificate or request, these look
6084 in the subject name and the subject alternative name extensions and
6085 omit any duplicate addresses.
6088 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6089 This makes DSA verification about 2 % faster.
6092 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6093 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6094 plus overhead for 1024 bit moduli).
6095 This makes exponentiations about 0.5 % faster for 1024 bit
6096 exponents (as measured by "openssl speed rsa2048").
6099 *) Rename memory handling macros to avoid conflicts with other
6101 Malloc => OPENSSL_malloc
6102 Malloc_locked => OPENSSL_malloc_locked
6103 Realloc => OPENSSL_realloc
6104 Free => OPENSSL_free
6107 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6108 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6111 *) CygWin32 support.
6112 [John Jarvie <jjarvie@newsguy.com>]
6114 *) The type-safe stack code has been rejigged. It is now only compiled
6115 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6116 by default all type-specific stack functions are "#define"d back to
6117 standard stack functions. This results in more streamlined output
6118 but retains the type-safety checking possibilities of the original
6122 *) The STACK code has been cleaned up, and certain type declarations
6123 that didn't make a lot of sense have been brought in line. This has
6124 also involved a cleanup of sorts in safestack.h to more correctly
6125 map type-safe stack functions onto their plain stack counterparts.
6126 This work has also resulted in a variety of "const"ifications of
6127 lots of the code, especially "_cmp" operations which should normally
6128 be prototyped with "const" parameters anyway.
6131 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6132 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6133 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6134 where all of 'md' is used each time the PRNG is used, but 'state'
6135 is used only indexed by a cyclic counter. As entropy may not be
6136 well distributed from the beginning, 'md' is important as a
6137 chaining variable. However, the output function chains only half
6138 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6139 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6140 in all of 'state' being rewritten, with the new values depending
6141 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6144 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6145 the handshake is continued after ssl_verify_cert_chain();
6146 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6147 can lead to 'unexplainable' connection aborts later.
6148 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6150 *) Major EVP API cipher revision.
6151 Add hooks for extra EVP features. This allows various cipher
6152 parameters to be set in the EVP interface. Support added for variable
6153 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6154 setting of RC2 and RC5 parameters.
6156 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6159 Remove lots of duplicated code from the EVP library. For example *every*
6160 cipher init() function handles the 'iv' in the same way according to the
6161 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6162 for CFB and OFB modes they zero ctx->num.
6164 New functionality allows removal of S/MIME code RC2 hack.
6166 Most of the routines have the same form and so can be declared in terms
6169 By shifting this to the top level EVP_CipherInit() it can be removed from
6170 all individual ciphers. If the cipher wants to handle IVs or keys
6171 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6174 Change lots of functions like EVP_EncryptUpdate() to now return a
6175 value: although software versions of the algorithms cannot fail
6176 any installed hardware versions can.
6179 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6180 this option is set, tolerate broken clients that send the negotiated
6181 protocol version number instead of the requested protocol version
6185 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6186 i.e. non-zero for export ciphersuites, zero otherwise.
6187 Previous versions had this flag inverted, inconsistent with
6188 rsa_tmp_cb (..._TMP_RSA_CB).
6189 [Bodo Moeller; problem reported by Amit Chopra]
6191 *) Add missing DSA library text string. Work around for some IIS
6192 key files with invalid SEQUENCE encoding.
6195 *) Add a document (doc/standards.txt) that list all kinds of standards
6196 and so on that are implemented in OpenSSL.
6199 *) Enhance c_rehash script. Old version would mishandle certificates
6200 with the same subject name hash and wouldn't handle CRLs at all.
6201 Added -fingerprint option to crl utility, to support new c_rehash
6205 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6208 *) Fix for SSL server purpose checking. Server checking was
6209 rejecting certificates which had extended key usage present
6210 but no ssl client purpose.
6211 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6213 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6214 is a little unclear about how a blank password is handled.
6215 Since the password in encoded as a BMPString with terminating
6216 double NULL a zero length password would end up as just the
6217 double NULL. However no password at all is different and is
6218 handled differently in the PKCS#12 key generation code. NS
6219 treats a blank password as zero length. MSIE treats it as no
6220 password on export: but it will try both on import. We now do
6221 the same: PKCS12_parse() tries zero length and no password if
6222 the password is set to "" or NULL (NULL is now a valid password:
6223 it wasn't before) as does the pkcs12 application.
6226 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6227 perror when PEM_read_bio_X509_REQ fails, the error message must
6228 be obtained from the error queue.
6231 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6232 it in ERR_remove_state if appropriate, and change ERR_get_state
6233 accordingly to avoid race conditions (this is necessary because
6234 thread_hash is no longer constant once set).
6237 *) Bugfix for linux-elf makefile.one.
6240 *) RSA_get_default_method() will now cause a default
6241 RSA_METHOD to be chosen if one doesn't exist already.
6242 Previously this was only set during a call to RSA_new()
6243 or RSA_new_method(NULL) meaning it was possible for
6244 RSA_get_default_method() to return NULL.
6247 *) Added native name translation to the existing DSO code
6248 that will convert (if the flag to do so is set) filenames
6249 that are sufficiently small and have no path information
6250 into a canonical native form. Eg. "blah" converted to
6251 "libblah.so" or "blah.dll" etc.
6254 *) New function ERR_error_string_n(e, buf, len) which is like
6255 ERR_error_string(e, buf), but writes at most 'len' bytes
6256 including the 0 terminator. For ERR_error_string_n, 'buf'
6258 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6260 *) CONF library reworked to become more general. A new CONF
6261 configuration file reader "class" is implemented as well as a
6262 new functions (NCONF_*, for "New CONF") to handle it. The now
6263 old CONF_* functions are still there, but are reimplemented to
6264 work in terms of the new functions. Also, a set of functions
6265 to handle the internal storage of the configuration data is
6266 provided to make it easier to write new configuration file
6267 reader "classes" (I can definitely see something reading a
6268 configuration file in XML format, for example), called _CONF_*,
6269 or "the configuration storage API"...
6271 The new configuration file reading functions are:
6273 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6274 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6276 NCONF_default, NCONF_WIN32
6278 NCONF_dump_fp, NCONF_dump_bio
6280 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6281 NCONF_new creates a new CONF object. This works in the same way
6282 as other interfaces in OpenSSL, like the BIO interface.
6283 NCONF_dump_* dump the internal storage of the configuration file,
6284 which is useful for debugging. All other functions take the same
6285 arguments as the old CONF_* functions wth the exception of the
6286 first that must be a `CONF *' instead of a `LHASH *'.
6288 To make it easer to use the new classes with the old CONF_* functions,
6289 the function CONF_set_default_method is provided.
6292 *) Add '-tls1' option to 'openssl ciphers', which was already
6293 mentioned in the documentation but had not been implemented.
6294 (This option is not yet really useful because even the additional
6295 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6298 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6299 OpenSSL-based applications) load shared libraries and bind to
6300 them in a portable way.
6301 [Geoff Thorpe, with contributions from Richard Levitte]
6303 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6305 *) Make sure _lrotl and _lrotr are only used with MSVC.
6307 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6308 (the default implementation of RAND_status).
6310 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6311 to '-clrext' (= clear extensions), as intended and documented.
6312 [Bodo Moeller; inconsistency pointed out by Michael Attili
6315 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6316 was larger than the MD block size.
6317 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6319 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6320 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6321 using the passed key: if the passed key was a private key the result
6322 of X509_print(), for example, would be to print out all the private key
6326 *) des_quad_cksum() byte order bug fix.
6327 [Ulf Möller, using the problem description in krb4-0.9.7, where
6328 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6330 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6332 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6334 *) For easily testing in shell scripts whether some command
6335 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6336 returns with exit code 0 iff no command of the given name is available.
6337 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6338 the output goes to stdout and nothing is printed to stderr.
6339 Additional arguments are always ignored.
6341 Since for each cipher there is a command of the same name,
6342 the 'no-cipher' compilation switches can be tested this way.
6344 ('openssl no-XXX' is not able to detect pseudo-commands such
6345 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6348 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6351 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6352 is set; it will be thrown away anyway because each handshake creates
6354 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6355 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6356 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6357 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6360 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6361 'Q' and 'R' lose their special meanings (quit/renegotiate).
6362 This is part of what -quiet does; unlike -quiet, -ign_eof
6363 does not suppress any output.
6366 *) Add compatibility options to the purpose and trust code. The
6367 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6368 accepts a certificate or CA, this was the previous behaviour,
6369 with all the associated security issues.
6371 X509_TRUST_COMPAT is the old trust behaviour: only and
6372 automatically trust self signed roots in certificate store. A
6373 new trust setting X509_TRUST_DEFAULT is used to specify that
6374 a purpose has no associated trust setting and it should instead
6375 use the value in the default purpose.
6378 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6379 and fix a memory leak.
6382 *) In util/mkerr.pl (which implements 'make errors'), preserve
6383 reason strings from the previous version of the .c file, as
6384 the default to have only downcase letters (and digits) in
6385 automatically generated reasons codes is not always appropriate.
6388 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6389 using strerror. Previously, ERR_reason_error_string() returned
6390 library names as reason strings for SYSerr; but SYSerr is a special
6391 case where small numbers are errno values, not library numbers.
6394 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6395 converts DSA parameters into DH parameters. (When creating parameters,
6396 DSA_generate_parameters is used.)
6399 *) Include 'length' (recommended exponent length) in C code generated
6400 by 'openssl dhparam -C'.
6403 *) The second argument to set_label in perlasm was already being used
6404 so couldn't be used as a "file scope" flag. Moved to third argument
6408 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6409 instead of RAND_bytes for encryption IVs and salts.
6412 *) Include RAND_status() into RAND_METHOD instead of implementing
6413 it only for md_rand.c Otherwise replacing the PRNG by calling
6414 RAND_set_rand_method would be impossible.
6417 *) Don't let DSA_generate_key() enter an infinite loop if the random
6418 number generation fails.
6421 *) New 'rand' application for creating pseudo-random output.
6424 *) Added configuration support for Linux/IA64
6425 [Rolf Haberrecker <rolf@suse.de>]
6427 *) Assembler module support for Mingw32.
6430 *) Shared library support for HPUX (in shlib/).
6431 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6433 *) Shared library support for Solaris gcc.
6434 [Lutz Behnke <behnke@trustcenter.de>]
6436 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6438 *) PKCS7_encrypt() was adding text MIME headers twice because they
6439 were added manually and by SMIME_crlf_copy().
6442 *) In bntest.c don't call BN_rand with zero bits argument.
6443 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6445 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6446 case was implemented. This caused BN_div_recp() to fail occasionally.
6449 *) Add an optional second argument to the set_label() in the perl
6450 assembly language builder. If this argument exists and is set
6451 to 1 it signals that the assembler should use a symbol whose
6452 scope is the entire file, not just the current function. This
6453 is needed with MASM which uses the format label:: for this scope.
6454 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6456 *) Change the ASN1 types so they are typedefs by default. Before
6457 almost all types were #define'd to ASN1_STRING which was causing
6458 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6462 *) Change names of new functions to the new get1/get0 naming
6463 convention: After 'get1', the caller owns a reference count
6464 and has to call ..._free; 'get0' returns a pointer to some
6465 data structure without incrementing reference counters.
6466 (Some of the existing 'get' functions increment a reference
6467 counter, some don't.)
6468 Similarly, 'set1' and 'add1' functions increase reference
6469 counters or duplicate objects.
6472 *) Allow for the possibility of temp RSA key generation failure:
6473 the code used to assume it always worked and crashed on failure.
6476 *) Fix potential buffer overrun problem in BIO_printf().
6477 [Ulf Möller, using public domain code by Patrick Powell; problem
6478 pointed out by David Sacerdote <das33@cornell.edu>]
6480 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6481 RAND_egd() and RAND_status(). In the command line application,
6482 the EGD socket can be specified like a seed file using RANDFILE
6486 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6487 Some CAs (e.g. Verisign) distribute certificates in this form.
6490 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6491 list to exclude them. This means that no special compilation option
6492 is needed to use anonymous DH: it just needs to be included in the
6496 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6497 EVP_MD_type. The old functionality is available in a new macro called
6498 EVP_MD_md(). Change code that uses it and update docs.
6501 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6502 where the 'void *' argument is replaced by a function pointer argument.
6503 Previously 'void *' was abused to point to functions, which works on
6504 many platforms, but is not correct. As these functions are usually
6505 called by macros defined in OpenSSL header files, most source code
6506 should work without changes.
6509 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6510 sections with information on -D... compiler switches used for
6511 compiling the library so that applications can see them. To enable
6512 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6513 must be defined. E.g.,
6514 #define OPENSSL_ALGORITHM_DEFINES
6515 #include <openssl/opensslconf.h>
6516 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6517 [Richard Levitte, Ulf and Bodo Möller]
6519 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6523 *) Change the 'other' type in certificate aux info to a STACK_OF
6524 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6525 the required ASN1 format: arbitrary types determined by an OID.
6528 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6529 argument to 'req'. This is not because the function is newer or
6530 better than others it just uses the work 'NEW' in the certificate
6531 request header lines. Some software needs this.
6534 *) Reorganise password command line arguments: now passwords can be
6535 obtained from various sources. Delete the PEM_cb function and make
6536 it the default behaviour: i.e. if the callback is NULL and the
6537 usrdata argument is not NULL interpret it as a null terminated pass
6538 phrase. If usrdata and the callback are NULL then the pass phrase
6539 is prompted for as usual.
6542 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6543 the support is automatically enabled. The resulting binaries will
6544 autodetect the card and use it if present.
6545 [Ben Laurie and Compaq Inc.]
6547 *) Work around for Netscape hang bug. This sends certificate request
6548 and server done in one record. Since this is perfectly legal in the
6549 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6550 the bugs/SSLv3 entry for more info.
6553 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6556 *) Add -rand argument to smime and pkcs12 applications and read/write
6560 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6563 *) Add command line password options to the remaining applications.
6566 *) Bug fix for BN_div_recp() for numerators with an even number of
6570 *) More tests in bntest.c, and changed test_bn output.
6573 *) ./config recognizes MacOS X now.
6576 *) Bug fix for BN_div() when the first words of num and divsor are
6577 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6580 *) Add support for various broken PKCS#8 formats, and command line
6581 options to produce them.
6584 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6585 get temporary BIGNUMs from a BN_CTX.
6588 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6592 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6593 include a #define from the old name to the new. The original intent
6594 was that statically linked binaries could for example just call
6595 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6596 link with digests. This never worked becayse SSLeay_add_all_digests()
6597 and SSLeay_add_all_ciphers() were in the same source file so calling
6598 one would link with the other. They are now in separate source files.
6601 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6604 *) Use a less unusual form of the Miller-Rabin primality test (it used
6605 a binary algorithm for exponentiation integrated into the Miller-Rabin
6606 loop, our standard modexp algorithms are faster).
6609 *) Support for the EBCDIC character set completed.
6610 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6612 *) Source code cleanups: use const where appropriate, eliminate casts,
6613 use void * instead of char * in lhash.
6616 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6617 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6618 this the server could overwrite ephemeral keys that the client
6622 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6623 using 50 iterations of the Rabin-Miller test.
6625 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6626 iterations of the Rabin-Miller test as required by the appendix
6627 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6628 As BN_is_prime_fasttest includes trial division, DSA parameter
6629 generation becomes much faster.
6631 This implies a change for the callback functions in DSA_is_prime
6632 and DSA_generate_parameters: The callback function is called once
6633 for each positive witness in the Rabin-Miller test, not just
6634 occasionally in the inner loop; and the parameters to the
6635 callback function now provide an iteration count for the outer
6636 loop rather than for the current invocation of the inner loop.
6637 DSA_generate_parameters additionally can call the callback
6638 function with an 'iteration count' of -1, meaning that a
6639 candidate has passed the trial division test (when q is generated
6640 from an application-provided seed, trial division is skipped).
6643 *) New function BN_is_prime_fasttest that optionally does trial
6644 division before starting the Rabin-Miller test and has
6645 an additional BN_CTX * argument (whereas BN_is_prime always
6646 has to allocate at least one BN_CTX).
6647 'callback(1, -1, cb_arg)' is called when a number has passed the
6648 trial division stage.
6651 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6655 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6658 *) New function BN_pseudo_rand().
6661 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6662 bignum version of BN_from_montgomery() with the working code from
6663 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6667 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6668 made it impossible to use the same SSL_SESSION data structure in
6669 SSL2 clients in multiple threads.
6672 *) The return value of RAND_load_file() no longer counts bytes obtained
6673 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6674 to seed the PRNG (previously an explicit byte count was required).
6675 [Ulf Möller, Bodo Möller]
6677 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6678 used (char *) instead of (void *) and had casts all over the place.
6681 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6684 *) Retain source code compatibility for BN_prime_checks macro:
6685 BN_is_prime(..., BN_prime_checks, ...) now uses
6686 BN_prime_checks_for_size to determine the appropriate number of
6687 Rabin-Miller iterations.
6690 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6691 DH_CHECK_P_NOT_SAFE_PRIME.
6692 (Check if this is true? OpenPGP calls them "strong".)
6695 *) Merge the functionality of "dh" and "gendh" programs into a new program
6696 "dhparam". The old programs are retained for now but will handle DH keys
6697 (instead of parameters) in future.
6700 *) Make the ciphers, s_server and s_client programs check the return values
6701 when a new cipher list is set.
6704 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6705 ciphers. Before when the 56bit ciphers were enabled the sorting was
6708 The syntax for the cipher sorting has been extended to support sorting by
6709 cipher-strength (using the strength_bits hard coded in the tables).
6710 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6712 Fix a bug in the cipher-command parser: when supplying a cipher command
6713 string with an "undefined" symbol (neither command nor alphanumeric
6714 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6715 an error is flagged.
6717 Due to the strength-sorting extension, the code of the
6718 ssl_create_cipher_list() function was completely rearranged. I hope that
6719 the readability was also increased :-)
6720 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6722 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6723 for the first serial number and places 2 in the serial number file. This
6724 avoids problems when the root CA is created with serial number zero and
6725 the first user certificate has the same issuer name and serial number
6729 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6730 the new code. Add documentation for this stuff.
6733 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6734 X509_*() to X509at_*() on the grounds that they don't handle X509
6735 structures and behave in an analagous way to the X509v3 functions:
6736 they shouldn't be called directly but wrapper functions should be used
6739 So we also now have some wrapper functions that call the X509at functions
6740 when passed certificate requests. (TO DO: similar things can be done with
6741 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6742 things. Some of these need some d2i or i2d and print functionality
6743 because they handle more complex structures.)
6746 *) Add missing #ifndefs that caused missing symbols when building libssl
6747 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6748 NO_RSA in ssl/s2*.c.
6749 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6751 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6752 has a return value which indicates the quality of the random data
6753 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6754 error queue. New function RAND_pseudo_bytes() generates output that is
6755 guaranteed to be unique but not unpredictable. RAND_add is like
6756 RAND_seed, but takes an extra argument for an entropy estimate
6757 (RAND_seed always assumes full entropy).
6760 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6761 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6762 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6763 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6764 false-positive rate of at most 2^-80 for random input.
6767 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6770 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6771 in the 0.9.5 release), this returns the chain
6772 from an X509_CTX structure with a dup of the stack and all
6773 the X509 reference counts upped: so the stack will exist
6774 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6777 Also make SSL_SESSION_print() print out the verify return
6781 *) Add manpage for the pkcs12 command. Also change the default
6782 behaviour so MAC iteration counts are used unless the new
6783 -nomaciter option is used. This improves file security and
6784 only older versions of MSIE (4.0 for example) need it.
6787 *) Honor the no-xxx Configure options when creating .DEF files.
6790 *) Add PKCS#10 attributes to field table: challengePassword,
6791 unstructuredName and unstructuredAddress. These are taken from
6792 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6793 international characters are used.
6795 More changes to X509_ATTRIBUTE code: allow the setting of types
6796 based on strings. Remove the 'loc' parameter when adding
6797 attributes because these will be a SET OF encoding which is sorted
6801 *) Initial changes to the 'req' utility to allow request generation
6802 automation. This will allow an application to just generate a template
6803 file containing all the field values and have req construct the
6806 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6807 used all over the place including certificate requests and PKCS#7
6808 structures. They are currently handled manually where necessary with
6809 some primitive wrappers for PKCS#7. The new functions behave in a
6810 manner analogous to the X509 extension functions: they allow
6811 attributes to be looked up by NID and added.
6813 Later something similar to the X509V3 code would be desirable to
6814 automatically handle the encoding, decoding and printing of the
6815 more complex types. The string types like challengePassword can
6816 be handled by the string table functions.
6818 Also modified the multi byte string table handling. Now there is
6819 a 'global mask' which masks out certain types. The table itself
6820 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6821 is useful when for example there is only one permissible type
6822 (as in countryName) and using the mask might result in no valid
6826 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6827 SSL_get_peer_finished to allow applications to obtain the latest
6828 Finished messages sent to the peer or expected from the peer,
6829 respectively. (SSL_get_peer_finished is usually the Finished message
6830 actually received from the peer, otherwise the protocol will be aborted.)
6832 As the Finished message are message digests of the complete handshake
6833 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6834 be used for external authentication procedures when the authentication
6835 provided by SSL/TLS is not desired or is not enough.
6838 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6839 the host supports BWX extension and if Compaq C is present on the
6840 $PATH. Just exploiting of the BWX extension results in 20-30%
6841 performance kick for some algorithms, e.g. DES and RC4 to mention
6842 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6846 *) Add support for MS "fast SGC". This is arguably a violation of the
6847 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6848 weak crypto and after checking the certificate is SGC a second one
6849 with strong crypto. MS SGC stops the first handshake after receiving
6850 the server certificate message and sends a second client hello. Since
6851 a server will typically do all the time consuming operations before
6852 expecting any further messages from the client (server key exchange
6853 is the most expensive) there is little difference between the two.
6855 To get OpenSSL to support MS SGC we have to permit a second client
6856 hello message after we have sent server done. In addition we have to
6857 reset the MAC if we do get this second client hello.
6860 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6861 if a DER encoded private key is RSA or DSA traditional format. Changed
6862 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6863 format DER encoded private key. Newer code should use PKCS#8 format which
6864 has the key type encoded in the ASN1 structure. Added DER private key
6865 support to pkcs8 application.
6868 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6869 ciphersuites has been selected (as required by the SSL 3/TLS 1
6870 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6871 is set, we interpret this as a request to violate the specification
6872 (the worst that can happen is a handshake failure, and 'correct'
6873 behaviour would result in a handshake failure anyway).
6876 *) In SSL_CTX_add_session, take into account that there might be multiple
6877 SSL_SESSION structures with the same session ID (e.g. when two threads
6878 concurrently obtain them from an external cache).
6879 The internal cache can handle only one SSL_SESSION with a given ID,
6880 so if there's a conflict, we now throw out the old one to achieve
6884 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6885 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6886 some routines that use cipher OIDs: some ciphers do not have OIDs
6887 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6891 *) Simplify the trust setting structure and code. Now we just have
6892 two sequences of OIDs for trusted and rejected settings. These will
6893 typically have values the same as the extended key usage extension
6894 and any application specific purposes.
6896 The trust checking code now has a default behaviour: it will just
6897 check for an object with the same NID as the passed id. Functions can
6898 be provided to override either the default behaviour or the behaviour
6899 for a given id. SSL client, server and email already have functions
6900 in place for compatibility: they check the NID and also return "trusted"
6901 if the certificate is self signed.
6904 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6905 traditional format into an EVP_PKEY structure.
6908 *) Add a password callback function PEM_cb() which either prompts for
6909 a password if usr_data is NULL or otherwise assumes it is a null
6910 terminated password. Allow passwords to be passed on command line
6911 environment or config files in a few more utilities.
6914 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6915 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6916 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6917 Update documentation.
6920 *) Support for ASN1 "NULL" type. This could be handled before by using
6921 ASN1_TYPE but there wasn't any function that would try to read a NULL
6922 and produce an error if it couldn't. For compatibility we also have
6923 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6924 don't allocate anything because they don't need to.
6927 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6929 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6931 *) Rebuild of the memory allocation routines used by OpenSSL code and
6932 possibly others as well. The purpose is to make an interface that
6933 provide hooks so anyone can build a separate set of allocation and
6934 deallocation routines to be used by OpenSSL, for example memory
6935 pool implementations, or something else, which was previously hard
6936 since Malloc(), Realloc() and Free() were defined as macros having
6937 the values malloc, realloc and free, respectively (except for Win32
6938 compilations). The same is provided for memory debugging code.
6939 OpenSSL already comes with functionality to find memory leaks, but
6940 this gives people a chance to debug other memory problems.
6942 With these changes, a new set of functions and macros have appeared:
6944 CRYPTO_set_mem_debug_functions() [F]
6945 CRYPTO_get_mem_debug_functions() [F]
6946 CRYPTO_dbg_set_options() [F]
6947 CRYPTO_dbg_get_options() [F]
6948 CRYPTO_malloc_debug_init() [M]
6950 The memory debug functions are NULL by default, unless the library
6951 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6952 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6953 gives the standard debugging functions that come with OpenSSL) or
6954 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6955 provided by the library user) must be used. When the standard
6956 debugging functions are used, CRYPTO_dbg_set_options can be used to
6957 request additional information:
6958 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6959 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6961 Also, things like CRYPTO_set_mem_functions will always give the
6962 expected result (the new set of functions is used for allocation
6963 and deallocation) at all times, regardless of platform and compiler
6966 To finish it up, some functions that were never use in any other
6967 way than through macros have a new API and new semantic:
6970 CRYPTO_dbg_realloc()
6973 All macros of value have retained their old syntax.
6974 [Richard Levitte and Bodo Moeller]
6976 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6977 ordering of SMIMECapabilities wasn't in "strength order" and there
6978 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6982 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6983 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6984 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6986 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6987 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6988 functionality to handle multipart/signed properly) and a utility
6989 called 'smime' to call all this stuff. This is based on code I
6990 originally wrote for Celo who have kindly allowed it to be
6991 included in OpenSSL.
6994 *) Add variants des_set_key_checked and des_set_key_unchecked of
6995 des_set_key (aka des_key_sched). Global variable des_check_key
6996 decides which of these is called by des_set_key; this way
6997 des_check_key behaves as it always did, but applications and
6998 the library itself, which was buggy for des_check_key == 1,
6999 have a cleaner way to pick the version they need.
7002 *) New function PKCS12_newpass() which changes the password of a
7006 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7007 dynamic mix. In both cases the ids can be used as an index into the
7008 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7009 functions so they accept a list of the field values and the
7010 application doesn't need to directly manipulate the X509_TRUST
7014 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7018 *) Modify the way the V3 extension code looks up extensions. This now
7019 works in a similar way to the object code: we have some "standard"
7020 extensions in a static table which is searched with OBJ_bsearch()
7021 and the application can add dynamic ones if needed. The file
7022 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7023 updated whenever a new extension is added to the core code and kept
7024 in ext_nid order. There is a simple program 'tabtest.c' which checks
7025 this. New extensions are not added too often so this file can readily
7026 be maintained manually.
7028 There are two big advantages in doing things this way. The extensions
7029 can be looked up immediately and no longer need to be "added" using
7030 X509V3_add_standard_extensions(): this function now does nothing.
7031 [Side note: I get *lots* of email saying the extension code doesn't
7032 work because people forget to call this function]
7033 Also no dynamic allocation is done unless new extensions are added:
7034 so if we don't add custom extensions there is no need to call
7035 X509V3_EXT_cleanup().
7038 *) Modify enc utility's salting as follows: make salting the default. Add a
7039 magic header, so unsalted files fail gracefully instead of just decrypting
7040 to garbage. This is because not salting is a big security hole, so people
7041 should be discouraged from doing it.
7044 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7045 digest to be passed on the command line but it only used this
7046 parameter when signing a certificate. Modified so all relevant
7047 operations are affected by the digest parameter including the
7048 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7049 DSA key was used because it didn't fix the digest.
7052 *) Initial certificate chain verify code. Currently tests the untrusted
7053 certificates for consistency with the verify purpose (which is set
7054 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7056 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7057 this is because it will reject chains with invalid extensions whereas
7058 every previous version of OpenSSL and SSLeay made no checks at all.
7060 Trust code: checks the root CA for the relevant trust settings. Trust
7061 settings have an initial value consistent with the verify purpose: e.g.
7062 if the verify purpose is for SSL client use it expects the CA to be
7063 trusted for SSL client use. However the default value can be changed to
7064 permit custom trust settings: one example of this would be to only trust
7065 certificates from a specific "secure" set of CAs.
7067 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7068 which should be used for version portability: especially since the
7069 verify structure is likely to change more often now.
7071 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7072 to set them. If not set then assume SSL clients will verify SSL servers
7075 Two new options to the verify program: -untrusted allows a set of
7076 untrusted certificates to be passed in and -purpose which sets the
7077 intended purpose of the certificate. If a purpose is set then the
7078 new chain verify code is used to check extension consistency.
7081 *) Support for the authority information access extension.
7084 *) Modify RSA and DSA PEM read routines to transparently handle
7085 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7086 public keys in a format compatible with certificate
7087 SubjectPublicKeyInfo structures. Unfortunately there were already
7088 functions called *_PublicKey_* which used various odd formats so
7089 these are retained for compatibility: however the DSA variants were
7090 never in a public release so they have been deleted. Changed dsa/rsa
7091 utilities to handle the new format: note no releases ever handled public
7092 keys so we should be OK.
7094 The primary motivation for this change is to avoid the same fiasco
7095 that dogs private keys: there are several incompatible private key
7096 formats some of which are standard and some OpenSSL specific and
7097 require various evil hacks to allow partial transparent handling and
7098 even then it doesn't work with DER formats. Given the option anything
7099 other than PKCS#8 should be dumped: but the other formats have to
7100 stay in the name of compatibility.
7102 With public keys and the benefit of hindsight one standard format
7103 is used which works with EVP_PKEY, RSA or DSA structures: though
7104 it clearly returns an error if you try to read the wrong kind of key.
7106 Added a -pubkey option to the 'x509' utility to output the public key.
7107 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7108 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7109 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7110 that do the same as the EVP_PKEY_assign_*() except they up the
7111 reference count of the added key (they don't "swallow" the
7115 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7116 CRLs would fail if the file contained no certificates or no CRLs:
7117 added a new function to read in both types and return the number
7118 read: this means that if none are read it will be an error. The
7119 DER versions of the certificate and CRL reader would always fail
7120 because it isn't possible to mix certificates and CRLs in DER format
7121 without choking one or the other routine. Changed this to just read
7122 a certificate: this is the best we can do. Also modified the code
7123 in apps/verify.c to take notice of return codes: it was previously
7124 attempting to read in certificates from NULL pointers and ignoring
7125 any errors: this is one reason why the cert and CRL reader seemed
7126 to work. It doesn't check return codes from the default certificate
7127 routines: these may well fail if the certificates aren't installed.
7130 *) Code to support otherName option in GeneralName.
7133 *) First update to verify code. Change the verify utility
7134 so it warns if it is passed a self signed certificate:
7135 for consistency with the normal behaviour. X509_verify
7136 has been modified to it will now verify a self signed
7137 certificate if *exactly* the same certificate appears
7138 in the store: it was previously impossible to trust a
7139 single self signed certificate. This means that:
7140 openssl verify ss.pem
7141 now gives a warning about a self signed certificate but
7142 openssl verify -CAfile ss.pem ss.pem
7146 *) For servers, store verify_result in SSL_SESSION data structure
7147 (and add it to external session representation).
7148 This is needed when client certificate verifications fails,
7149 but an application-provided verification callback (set by
7150 SSL_CTX_set_cert_verify_callback) allows accepting the session
7151 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7152 but returns 1): When the session is reused, we have to set
7153 ssl->verify_result to the appropriate error code to avoid
7155 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7157 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7158 case in PKCS7_dataInit() where the signed PKCS7 structure
7159 didn't contain any existing data because it was being created.
7160 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7162 *) Add a salt to the key derivation routines in enc.c. This
7163 forms the first 8 bytes of the encrypted file. Also add a
7164 -S option to allow a salt to be input on the command line.
7167 *) New function X509_cmp(). Oddly enough there wasn't a function
7168 to compare two certificates. We do this by working out the SHA1
7169 hash and comparing that. X509_cmp() will be needed by the trust
7173 *) SSL_get1_session() is like SSL_get_session(), but increments
7174 the reference count in the SSL_SESSION returned.
7175 [Geoff Thorpe <geoff@eu.c2.net>]
7177 *) Fix for 'req': it was adding a null to request attributes.
7178 Also change the X509_LOOKUP and X509_INFO code to handle
7179 certificate auxiliary information.
7182 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7186 *) Add the possibility to add extra information to the memory leak
7187 detecting output, to form tracebacks, showing from where each
7188 allocation was originated: CRYPTO_push_info("constant string") adds
7189 the string plus current file name and line number to a per-thread
7190 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7191 is like calling CYRPTO_pop_info() until the stack is empty.
7192 Also updated memory leak detection code to be multi-thread-safe.
7195 *) Add options -text and -noout to pkcs7 utility and delete the
7196 encryption options which never did anything. Update docs.
7199 *) Add options to some of the utilities to allow the pass phrase
7200 to be included on either the command line (not recommended on
7201 OSes like Unix) or read from the environment. Update the
7202 manpages and fix a few bugs.
7205 *) Add a few manpages for some of the openssl commands.
7208 *) Fix the -revoke option in ca. It was freeing up memory twice,
7209 leaking and not finding already revoked certificates.
7212 *) Extensive changes to support certificate auxiliary information.
7213 This involves the use of X509_CERT_AUX structure and X509_AUX
7214 functions. An X509_AUX function such as PEM_read_X509_AUX()
7215 can still read in a certificate file in the usual way but it
7216 will also read in any additional "auxiliary information". By
7217 doing things this way a fair degree of compatibility can be
7218 retained: existing certificates can have this information added
7219 using the new 'x509' options.
7221 Current auxiliary information includes an "alias" and some trust
7222 settings. The trust settings will ultimately be used in enhanced
7223 certificate chain verification routines: currently a certificate
7224 can only be trusted if it is self signed and then it is trusted
7228 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7229 The problem was that one of the replacement routines had not been working
7230 since SSLeay releases. For now the offending routine has been replaced
7231 with non-optimised assembler. Even so, this now gives around 95%
7232 performance improvement for 1024 bit RSA signs.
7235 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7236 handling. Most clients have the effective key size in bits equal to
7237 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7238 A few however don't do this and instead use the size of the decrypted key
7239 to determine the RC2 key length and the AlgorithmIdentifier to determine
7240 the effective key length. In this case the effective key length can still
7241 be 40 bits but the key length can be 168 bits for example. This is fixed
7242 by manually forcing an RC2 key into the EVP_PKEY structure because the
7243 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7244 the key length and effective key length are equal.
7247 *) Add a bunch of functions that should simplify the creation of
7248 X509_NAME structures. Now you should be able to do:
7249 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7250 and have it automatically work out the correct field type and fill in
7251 the structures. The more adventurous can try:
7252 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7253 and it will (hopefully) work out the correct multibyte encoding.
7256 *) Change the 'req' utility to use the new field handling and multibyte
7257 copy routines. Before the DN field creation was handled in an ad hoc
7258 way in req, ca, and x509 which was rather broken and didn't support
7259 BMPStrings or UTF8Strings. Since some software doesn't implement
7260 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7261 using the dirstring_type option. See the new comment in the default
7262 openssl.cnf for more info.
7265 *) Make crypto/rand/md_rand.c more robust:
7266 - Assure unique random numbers after fork().
7267 - Make sure that concurrent threads access the global counter and
7268 md serializably so that we never lose entropy in them
7269 or use exactly the same state in multiple threads.
7270 Access to the large state is not always serializable because
7271 the additional locking could be a performance killer, and
7272 md should be large enough anyway.
7275 *) New file apps/app_rand.c with commonly needed functionality
7276 for handling the random seed file.
7278 Use the random seed file in some applications that previously did not:
7280 dsaparam -genkey (which also ignored its '-rand' option),
7283 x509 (when signing).
7284 Except on systems with /dev/urandom, it is crucial to have a random
7285 seed file at least for key creation, DSA signing, and for DH exchanges;
7286 for RSA signatures we could do without one.
7288 gendh and gendsa (unlike genrsa) used to read only the first byte
7289 of each file listed in the '-rand' option. The function as previously
7290 found in genrsa is now in app_rand.c and is used by all programs
7291 that support '-rand'.
7294 *) In RAND_write_file, use mode 0600 for creating files;
7295 don't just chmod when it may be too late.
7298 *) Report an error from X509_STORE_load_locations
7299 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7302 *) New function ASN1_mbstring_copy() this copies a string in either
7303 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7304 into an ASN1_STRING type. A mask of permissible types is passed
7305 and it chooses the "minimal" type to use or an error if not type
7309 *) Add function equivalents to the various macros in asn1.h. The old
7310 macros are retained with an M_ prefix. Code inside the library can
7311 use the M_ macros. External code (including the openssl utility)
7312 should *NOT* in order to be "shared library friendly".
7315 *) Add various functions that can check a certificate's extensions
7316 to see if it usable for various purposes such as SSL client,
7317 server or S/MIME and CAs of these types. This is currently
7318 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7319 verification. Also added a -purpose flag to x509 utility to
7320 print out all the purposes.
7323 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7327 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7328 for, obtain and decode and extension and obtain its critical flag.
7329 This allows all the necessary extension code to be handled in a
7330 single function call.
7333 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7334 platforms. See crypto/rc4/rc4_enc.c for further details.
7337 *) New -noout option to asn1parse. This causes no output to be produced
7338 its main use is when combined with -strparse and -out to extract data
7339 from a file (which may not be in ASN.1 format).
7342 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7343 when producing the local key id.
7344 [Richard Levitte <levitte@stacken.kth.se>]
7346 *) New option -dhparam in s_server. This allows a DH parameter file to be
7347 stated explicitly. If it is not stated then it tries the first server
7348 certificate file. The previous behaviour hard coded the filename
7352 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7353 a public key to be input or output. For example:
7354 openssl rsa -in key.pem -pubout -out pubkey.pem
7355 Also added necessary DSA public key functions to handle this.
7358 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7359 in the message. This was handled by allowing
7360 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7361 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7363 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7364 to the end of the strings whereas this didn't. This would cause problems
7365 if strings read with d2i_ASN1_bytes() were later modified.
7366 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7368 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7369 data and it contains EOF it will end up returning an error. This is
7370 caused by input 46 bytes long. The cause is due to the way base64
7371 BIOs find the start of base64 encoded data. They do this by trying a
7372 trial decode on each line until they find one that works. When they
7373 do a flag is set and it starts again knowing it can pass all the
7374 data directly through the decoder. Unfortunately it doesn't reset
7375 the context it uses. This means that if EOF is reached an attempt
7376 is made to pass two EOFs through the context and this causes the
7377 resulting error. This can also cause other problems as well. As is
7378 usual with these problems it takes *ages* to find and the fix is
7379 trivial: move one line.
7380 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7382 *) Ugly workaround to get s_client and s_server working under Windows. The
7383 old code wouldn't work because it needed to select() on sockets and the
7384 tty (for keypresses and to see if data could be written). Win32 only
7385 supports select() on sockets so we select() with a 1s timeout on the
7386 sockets and then see if any characters are waiting to be read, if none
7387 are present then we retry, we also assume we can always write data to
7388 the tty. This isn't nice because the code then blocks until we've
7389 received a complete line of data and it is effectively polling the
7390 keyboard at 1s intervals: however it's quite a bit better than not
7391 working at all :-) A dedicated Windows application might handle this
7392 with an event loop for example.
7395 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7396 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7397 will be called when RSA_sign() and RSA_verify() are used. This is useful
7398 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7399 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7400 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7401 This necessitated the support of an extra signature type NID_md5_sha1
7402 for SSL signatures and modifications to the SSL library to use it instead
7403 of calling RSA_public_decrypt() and RSA_private_encrypt().
7406 *) Add new -verify -CAfile and -CApath options to the crl program, these
7407 will lookup a CRL issuers certificate and verify the signature in a
7408 similar way to the verify program. Tidy up the crl program so it
7409 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7410 less strict. It will now permit CRL extensions even if it is not
7411 a V2 CRL: this will allow it to tolerate some broken CRLs.
7414 *) Initialize all non-automatic variables each time one of the openssl
7415 sub-programs is started (this is necessary as they may be started
7416 multiple times from the "OpenSSL>" prompt).
7417 [Lennart Bang, Bodo Moeller]
7419 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7420 removing all other RSA functionality (this is what NO_RSA does). This
7421 is so (for example) those in the US can disable those operations covered
7422 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7426 *) Non-copying interface to BIO pairs.
7427 (still largely untested)
7430 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7431 ASCII string. This was handled independently in various places before.
7434 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7435 UTF8 strings a character at a time.
7438 *) Use client_version from client hello to select the protocol
7439 (s23_srvr.c) and for RSA client key exchange verification
7440 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7443 *) Add various utility functions to handle SPKACs, these were previously
7444 handled by poking round in the structure internals. Added new function
7445 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7446 print, verify and generate SPKACs. Based on an original idea from
7447 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7450 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7453 *) Allow the config file extension section to be overwritten on the
7454 command line. Based on an original idea from Massimiliano Pala
7455 <madwolf@comune.modena.it>. The new option is called -extensions
7456 and can be applied to ca, req and x509. Also -reqexts to override
7457 the request extensions in req and -crlexts to override the crl extensions
7461 *) Add new feature to the SPKAC handling in ca. Now you can include
7462 the same field multiple times by preceding it by "XXXX." for example:
7465 this is the same syntax as used in the req config file.
7468 *) Allow certificate extensions to be added to certificate requests. These
7469 are specified in a 'req_extensions' option of the req section of the
7470 config file. They can be printed out with the -text option to req but
7471 are otherwise ignored at present.
7474 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7475 data read consists of only the final block it would not decrypted because
7476 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7477 A misplaced 'break' also meant the decrypted final block might not be
7478 copied until the next read.
7481 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7482 a few extra parameters to the DH structure: these will be useful if
7483 for example we want the value of 'q' or implement X9.42 DH.
7486 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7487 provides hooks that allow the default DSA functions or functions on a
7488 "per key" basis to be replaced. This allows hardware acceleration and
7489 hardware key storage to be handled without major modification to the
7490 library. Also added low level modexp hooks and CRYPTO_EX structure and
7491 associated functions.
7494 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7495 as "read only": it can't be written to and the buffer it points to will
7496 not be freed. Reading from a read only BIO is much more efficient than
7497 a normal memory BIO. This was added because there are several times when
7498 an area of memory needs to be read from a BIO. The previous method was
7499 to create a memory BIO and write the data to it, this results in two
7500 copies of the data and an O(n^2) reading algorithm. There is a new
7501 function BIO_new_mem_buf() which creates a read only memory BIO from
7502 an area of memory. Also modified the PKCS#7 routines to use read only
7506 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7507 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7508 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7509 but a retry condition occured while trying to read the rest.
7512 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7513 NID_pkcs7_encrypted by default: this was wrong since this should almost
7514 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7515 the encrypted data type: this is a more sensible place to put it and it
7516 allows the PKCS#12 code to be tidied up that duplicated this
7520 *) Changed obj_dat.pl script so it takes its input and output files on
7521 the command line. This should avoid shell escape redirection problems
7525 *) Initial support for certificate extension requests, these are included
7526 in things like Xenroll certificate requests. Included functions to allow
7527 extensions to be obtained and added.
7530 *) -crlf option to s_client and s_server for sending newlines as
7531 CRLF (as required by many protocols).
7534 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7536 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7537 [Ralf S. Engelschall]
7539 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7540 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7542 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7546 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7547 DH parameters/keys (q is lost during that conversion, but the resulting
7548 DH parameters contain its length).
7550 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7551 much faster than DH_generate_parameters (which creates parameters
7552 where p = 2*q + 1), and also the smaller q makes DH computations
7553 much more efficient (160-bit exponentiation instead of 1024-bit
7554 exponentiation); so this provides a convenient way to support DHE
7555 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7556 utter importance to use
7557 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7559 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7560 when such DH parameters are used, because otherwise small subgroup
7561 attacks may become possible!
7564 *) Avoid memory leak in i2d_DHparams.
7567 *) Allow the -k option to be used more than once in the enc program:
7568 this allows the same encrypted message to be read by multiple recipients.
7571 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7572 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7573 it will always use the numerical form of the OID, even if it has a short
7577 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7578 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7579 otherwise bn_mod_exp was called. In the case of hardware keys for example
7580 no private key components need be present and it might store extra data
7581 in the RSA structure, which cannot be accessed from bn_mod_exp.
7582 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7583 private key operations.
7586 *) Added support for SPARC Linux.
7589 *) pem_password_cb function type incompatibly changed from
7590 typedef int pem_password_cb(char *buf, int size, int rwflag);
7592 ....(char *buf, int size, int rwflag, void *userdata);
7593 so that applications can pass data to their callbacks:
7594 The PEM[_ASN1]_{read,write}... functions and macros now take an
7595 additional void * argument, which is just handed through whenever
7596 the password callback is called.
7597 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7599 New function SSL_CTX_set_default_passwd_cb_userdata.
7601 Compatibility note: As many C implementations push function arguments
7602 onto the stack in reverse order, the new library version is likely to
7603 interoperate with programs that have been compiled with the old
7604 pem_password_cb definition (PEM_whatever takes some data that
7605 happens to be on the stack as its last argument, and the callback
7606 just ignores this garbage); but there is no guarantee whatsoever that
7609 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7610 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7611 problems not only on Windows, but also on some Unix platforms.
7612 To avoid problematic command lines, these definitions are now in an
7613 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7614 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7617 *) MIPS III/IV assembler module is reimplemented.
7620 *) More DES library cleanups: remove references to srand/rand and
7621 delete an unused file.
7624 *) Add support for the the free Netwide assembler (NASM) under Win32,
7625 since not many people have MASM (ml) and it can be hard to obtain.
7626 This is currently experimental but it seems to work OK and pass all
7627 the tests. Check out INSTALL.W32 for info.
7630 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7631 without temporary keys kept an extra copy of the server key,
7632 and connections with temporary keys did not free everything in case
7636 *) New function RSA_check_key and new openssl rsa option -check
7637 for verifying the consistency of RSA keys.
7638 [Ulf Moeller, Bodo Moeller]
7640 *) Various changes to make Win32 compile work:
7641 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7642 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7643 comparison" warnings.
7644 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7647 *) Add a debugging option to PKCS#5 v2 key generation function: when
7648 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7649 derived keys are printed to stderr.
7652 *) Copy the flags in ASN1_STRING_dup().
7653 [Roman E. Pavlov <pre@mo.msk.ru>]
7655 *) The x509 application mishandled signing requests containing DSA
7656 keys when the signing key was also DSA and the parameters didn't match.
7658 It was supposed to omit the parameters when they matched the signing key:
7659 the verifying software was then supposed to automatically use the CA's
7660 parameters if they were absent from the end user certificate.
7662 Omitting parameters is no longer recommended. The test was also
7663 the wrong way round! This was probably due to unusual behaviour in
7664 EVP_cmp_parameters() which returns 1 if the parameters match.
7665 This meant that parameters were omitted when they *didn't* match and
7666 the certificate was useless. Certificates signed with 'ca' didn't have
7668 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7670 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7671 The interface is as follows:
7672 Applications can use
7673 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7674 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7675 "off" is now the default.
7676 The library internally uses
7677 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7678 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7679 to disable memory-checking temporarily.
7681 Some inconsistent states that previously were possible (and were
7682 even the default) are now avoided.
7684 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7685 with each memory chunk allocated; this is occasionally more helpful
7686 than just having a counter.
7688 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7690 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7694 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7695 which largely parallels "options", but is for changing API behaviour,
7696 whereas "options" are about protocol behaviour.
7697 Initial "mode" flags are:
7699 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7700 a single record has been written.
7701 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7702 retries use the same buffer location.
7703 (But all of the contents must be
7707 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7710 *) Fix problems with no-hmac etc.
7711 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7713 *) New functions RSA_get_default_method(), RSA_set_method() and
7714 RSA_get_method(). These allows replacement of RSA_METHODs without having
7715 to mess around with the internals of an RSA structure.
7718 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7719 Also really enable memory leak checks in openssl.c and in some
7721 [Chad C. Mulligan, Bodo Moeller]
7723 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7724 up the length of negative integers. This has now been simplified to just
7725 store the length when it is first determined and use it later, rather
7726 than trying to keep track of where data is copied and updating it to
7728 [Steve Henson, reported by Brien Wheeler
7729 <bwheeler@authentica-security.com>]
7731 *) Add a new function PKCS7_signatureVerify. This allows the verification
7732 of a PKCS#7 signature but with the signing certificate passed to the
7733 function itself. This contrasts with PKCS7_dataVerify which assumes the
7734 certificate is present in the PKCS#7 structure. This isn't always the
7735 case: certificates can be omitted from a PKCS#7 structure and be
7736 distributed by "out of band" means (such as a certificate database).
7739 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7740 function prototypes in pem.h, also change util/mkdef.pl to add the
7741 necessary function names.
7744 *) mk1mf.pl (used by Windows builds) did not properly read the
7745 options set by Configure in the top level Makefile, and Configure
7746 was not even able to write more than one option correctly.
7747 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7750 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7751 file to be loaded from a BIO or FILE pointer. The BIO version will
7752 for example allow memory BIOs to contain config info.
7755 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7756 Whoever hopes to achieve shared-library compatibility across versions
7757 must use this, not the compile-time macro.
7758 (Exercise 0.9.4: Which is the minimum library version required by
7760 Note: All this applies only to multi-threaded programs, others don't
7764 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7765 through a BIO pair triggered the default case, i.e.
7766 SSLerr(...,SSL_R_UNKNOWN_STATE).
7769 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7770 can use the SSL library even if none of the specific BIOs is
7774 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7775 for the encoded length.
7776 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7778 *) Add initial documentation of the X509V3 functions.
7781 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7782 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7783 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7784 secure PKCS#8 private key format with a high iteration count.
7787 *) Fix determination of Perl interpreter: A perl or perl5
7788 _directory_ in $PATH was also accepted as the interpreter.
7789 [Ralf S. Engelschall]
7791 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7792 wrong with it but it was very old and did things like calling
7793 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7797 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7798 to use the new extension code.
7801 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7802 with macros. This should make it easier to change their form, add extra
7803 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7807 *) Add to configuration table a new entry that can specify an alternative
7808 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7809 according to Mark Crispin <MRC@Panda.COM>.
7813 *) DES CBC did not update the IV. Weird.
7816 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7817 Changing the behaviour of the former might break existing programs --
7818 where IV updating is needed, des_ncbc_encrypt can be used.
7821 *) When bntest is run from "make test" it drives bc to check its
7822 calculations, as well as internally checking them. If an internal check
7823 fails, it needs to cause bc to give a non-zero result or make test carries
7824 on without noticing the failure. Fixed.
7827 *) DES library cleanups.
7830 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7831 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7832 ciphers. NOTE: although the key derivation function has been verified
7833 against some published test vectors it has not been extensively tested
7834 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7838 *) Instead of "mkdir -p", which is not fully portable, use new
7839 Perl script "util/mkdir-p.pl".
7842 *) Rewrite the way password based encryption (PBE) is handled. It used to
7843 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7844 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7845 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7846 the 'parameter' field of the AlgorithmIdentifier is passed to the
7847 underlying key generation function so it must do its own ASN1 parsing.
7848 This has also changed the EVP_PBE_CipherInit() function which now has a
7849 'parameter' argument instead of literal salt and iteration count values
7850 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7853 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7854 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7855 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7856 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7857 value was just used as a "magic string" and not used directly its
7858 value doesn't matter.
7861 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7865 *) "linux-sparc64" configuration (ultrapenguin).
7866 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7867 "linux-sparc" configuration.
7868 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7870 *) config now generates no-xxx options for missing ciphers.
7873 *) Support the EBCDIC character set (work in progress).
7874 File ebcdic.c not yet included because it has a different license.
7875 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7877 *) Support BS2000/OSD-POSIX.
7878 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7880 *) Make callbacks for key generation use void * instead of char *.
7883 *) Make S/MIME samples compile (not yet tested).
7886 *) Additional typesafe stacks.
7889 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7893 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7895 *) New configuration variant "sco5-gcc".
7897 *) Updated some demos.
7898 [Sean O Riordain, Wade Scholine]
7900 *) Add missing BIO_free at exit of pkcs12 application.
7903 *) Fix memory leak in conf.c.
7906 *) Updates for Win32 to assembler version of MD5.
7909 *) Set #! path to perl in apps/der_chop to where we found it
7910 instead of using a fixed path.
7913 *) SHA library changes for irix64-mips4-cc.
7916 *) Improvements for VMS support.
7920 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7922 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7923 This also avoids the problems with SC4.2 and unpatched SC5.
7924 [Andy Polyakov <appro@fy.chalmers.se>]
7926 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7927 These are required because of the typesafe stack would otherwise break
7928 existing code. If old code used a structure member which used to be STACK
7929 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7930 sk_num or sk_value it would produce an error because the num, data members
7931 are not present in STACK_OF. Now it just produces a warning. sk_set
7932 replaces the old method of assigning a value to sk_value
7933 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7934 that does this will no longer work (and should use sk_set instead) but
7935 this could be regarded as a "questionable" behaviour anyway.
7938 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7939 correctly handle encrypted S/MIME data.
7942 *) Change type of various DES function arguments from des_cblock
7943 (which means, in function argument declarations, pointer to char)
7944 to des_cblock * (meaning pointer to array with 8 char elements),
7945 which allows the compiler to do more typechecking; it was like
7946 that back in SSLeay, but with lots of ugly casts.
7948 Introduce new type const_des_cblock.
7951 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7952 problems: find RecipientInfo structure that matches recipient certificate
7953 and initialise the ASN1 structures properly based on passed cipher.
7956 *) Belatedly make the BN tests actually check the results.
7959 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7960 to and from BNs: it was completely broken. New compilation option
7961 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7962 key elements as negative integers.
7965 *) Reorganize and speed up MD5.
7966 [Andy Polyakov <appro@fy.chalmers.se>]
7969 [Richard Levitte <richard@levitte.org>]
7971 *) New option -out to asn1parse to allow the parsed structure to be
7972 output to a file. This is most useful when combined with the -strparse
7973 option to examine the output of things like OCTET STRINGS.
7976 *) Make SSL library a little more fool-proof by not requiring any longer
7977 that SSL_set_{accept,connect}_state be called before
7978 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7979 in many applications because usually everything *appeared* to work as
7980 intended anyway -- now it really works as intended).
7983 *) Move openssl.cnf out of lib/.
7986 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7987 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7988 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7989 [Ralf S. Engelschall]
7991 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7992 handle PKCS#7 enveloped data properly.
7993 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7995 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7996 copying pointers. The cert_st handling is changed by this in
7997 various ways (and thus what used to be known as ctx->default_cert
7998 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7999 any longer when s->cert does not give us what we need).
8000 ssl_cert_instantiate becomes obsolete by this change.
8001 As soon as we've got the new code right (possibly it already is?),
8002 we have solved a couple of bugs of the earlier code where s->cert
8003 was used as if it could not have been shared with other SSL structures.
8005 Note that using the SSL API in certain dirty ways now will result
8006 in different behaviour than observed with earlier library versions:
8007 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8008 does not influence s as it used to.
8010 In order to clean up things more thoroughly, inside SSL_SESSION
8011 we don't use CERT any longer, but a new structure SESS_CERT
8012 that holds per-session data (if available); currently, this is
8013 the peer's certificate chain and, for clients, the server's certificate
8014 and temporary key. CERT holds only those values that can have
8015 meaningful defaults in an SSL_CTX.
8018 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8019 from the internal representation. Various PKCS#7 fixes: remove some
8020 evil casts and set the enc_dig_alg field properly based on the signing
8024 *) Allow PKCS#12 password to be set from the command line or the
8025 environment. Let 'ca' get its config file name from the environment
8026 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8030 *) Allow certificate policies extension to use an IA5STRING for the
8031 organization field. This is contrary to the PKIX definition but
8032 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8036 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8037 without disallowing inline assembler and the like for non-pedantic builds.
8040 *) Support Borland C++ builder.
8041 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8046 *) SHA-1 cleanups and performance enhancements.
8047 [Andy Polyakov <appro@fy.chalmers.se>]
8049 *) Sparc v8plus assembler for the bignum library.
8050 [Andy Polyakov <appro@fy.chalmers.se>]
8052 *) Accept any -xxx and +xxx compiler options in Configure.
8055 *) Update HPUX configuration.
8058 *) Add missing sk_<type>_unshift() function to safestack.h
8059 [Ralf S. Engelschall]
8061 *) New function SSL_CTX_use_certificate_chain_file that sets the
8062 "extra_cert"s in addition to the certificate. (This makes sense
8063 only for "PEM" format files, as chains as a whole are not
8067 *) Support verify_depth from the SSL API.
8068 x509_vfy.c had what can be considered an off-by-one-error:
8069 Its depth (which was not part of the external interface)
8070 was actually counting the number of certificates in a chain;
8071 now it really counts the depth.
8074 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8075 instead of X509err, which often resulted in confusing error
8076 messages since the error codes are not globally unique
8077 (e.g. an alleged error in ssl3_accept when a certificate
8078 didn't match the private key).
8080 *) New function SSL_CTX_set_session_id_context that allows to set a default
8081 value (so that you don't need SSL_set_session_id_context for each
8082 connection using the SSL_CTX).
8085 *) OAEP decoding bug fix.
8088 *) Support INSTALL_PREFIX for package builders, as proposed by
8092 *) New Configure options "threads" and "no-threads". For systems
8093 where the proper compiler options are known (currently Solaris
8094 and Linux), "threads" is the default.
8097 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8100 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8101 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8102 such as /usr/local/bin.
8105 *) "make linux-shared" to build shared libraries.
8106 [Niels Poppe <niels@netbox.org>]
8108 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8111 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8112 extension adding in x509 utility.
8115 *) Remove NOPROTO sections and error code comments.
8118 *) Partial rewrite of the DEF file generator to now parse the ANSI
8122 *) New Configure options --prefix=DIR and --openssldir=DIR.
8125 *) Complete rewrite of the error code script(s). It is all now handled
8126 by one script at the top level which handles error code gathering,
8127 header rewriting and C source file generation. It should be much better
8128 than the old method: it now uses a modified version of Ulf's parser to
8129 read the ANSI prototypes in all header files (thus the old K&R definitions
8130 aren't needed for error creation any more) and do a better job of
8131 translating function codes into names. The old 'ASN1 error code imbedded
8132 in a comment' is no longer necessary and it doesn't use .err files which
8133 have now been deleted. Also the error code call doesn't have to appear all
8134 on one line (which resulted in some large lines...).
8137 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8140 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8141 0 (which usually indicates a closed connection), but continue reading.
8144 *) Fix some race conditions.
8147 *) Add support for CRL distribution points extension. Add Certificate
8148 Policies and CRL distribution points documentation.
8151 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8154 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8155 8 of keying material. Merlin has also confirmed interop with this fix
8156 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8157 [Merlin Hughes <merlin@baltimore.ie>]
8159 *) Fix lots of warnings.
8160 [Richard Levitte <levitte@stacken.kth.se>]
8162 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8163 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8164 [Richard Levitte <levitte@stacken.kth.se>]
8166 *) Fix problems with sizeof(long) == 8.
8167 [Andy Polyakov <appro@fy.chalmers.se>]
8169 *) Change functions to ANSI C.
8172 *) Fix typos in error codes.
8173 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8175 *) Remove defunct assembler files from Configure.
8178 *) SPARC v8 assembler BIGNUM implementation.
8179 [Andy Polyakov <appro@fy.chalmers.se>]
8181 *) Support for Certificate Policies extension: both print and set.
8182 Various additions to support the r2i method this uses.
8185 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8186 return a const string when you are expecting an allocated buffer.
8189 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8190 types DirectoryString and DisplayText.
8193 *) Add code to allow r2i extensions to access the configuration database,
8194 add an LHASH database driver and add several ctx helper functions.
8197 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8198 fail when they extended the size of a BIGNUM.
8201 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8202 support typesafe stack.
8205 *) Fix typo in SSL_[gs]et_options().
8206 [Nils Frostberg <nils@medcom.se>]
8208 *) Delete various functions and files that belonged to the (now obsolete)
8209 old X509V3 handling code.
8212 *) New Configure option "rsaref".
8215 *) Don't auto-generate pem.h.
8218 *) Introduce type-safe ASN.1 SETs.
8221 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8222 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8224 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8225 that links with OpenSSL (well at least cause lots of warnings), but fear
8226 not: the conversion is trivial, and it eliminates loads of evil casts. A
8227 few STACKed things have been converted already. Feel free to convert more.
8228 In the fullness of time, I'll do away with the STACK type altogether.
8231 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8232 specified in <certfile> by updating the entry in the index.txt file.
8233 This way one no longer has to edit the index.txt file manually for
8234 revoking a certificate. The -revoke option does the gory details now.
8235 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8237 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8238 `-text' option at all and this way the `-noout -text' combination was
8239 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8240 [Ralf S. Engelschall]
8242 *) Make sure a corresponding plain text error message exists for the
8243 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8244 verify callback function determined that a certificate was revoked.
8245 [Ralf S. Engelschall]
8247 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8248 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8249 all available cipers including rc5, which was forgotten until now.
8250 In order to let the testing shell script know which algorithms
8251 are available, a new (up to now undocumented) command
8252 "openssl list-cipher-commands" is used.
8255 *) Bugfix: s_client occasionally would sleep in select() when
8256 it should have checked SSL_pending() first.
8259 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8260 the raw DSA values prior to ASN.1 encoding.
8263 *) Tweaks to Configure
8264 [Niels Poppe <niels@netbox.org>]
8266 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8270 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8273 *) New config option to avoid instructions that are illegal on the 80386.
8274 The default code is faster, but requires at least a 486.
8277 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8278 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8279 same as SSL2_VERSION anyway.
8282 *) New "-showcerts" option for s_client.
8285 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8286 application. Various cleanups and fixes.
8289 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8290 modify error routines to work internally. Add error codes and PBE init
8291 to library startup routines.
8294 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8295 packing functions to asn1 and evp. Changed function names and error
8296 codes along the way.
8299 *) PKCS12 integration: and so it begins... First of several patches to
8300 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8301 objects to objects.h
8304 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8305 and display support for Thawte strong extranet extension.
8308 *) Add LinuxPPC support.
8309 [Jeff Dubrule <igor@pobox.org>]
8311 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8312 bn_div_words in alpha.s.
8313 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8315 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8316 OAEP isn't supported when OpenSSL is built with RSAref.
8317 [Ulf Moeller <ulf@fitug.de>]
8319 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8320 so they no longer are missing under -DNOPROTO.
8321 [Soren S. Jorvang <soren@t.dk>]
8324 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8326 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8327 doesn't work when the session is reused. Coming soon!
8330 *) Fix a security hole, that allows sessions to be reused in the wrong
8331 context thus bypassing client cert protection! All software that uses
8332 client certs and session caches in multiple contexts NEEDS PATCHING to
8333 allow session reuse! A fuller solution is in the works.
8334 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8336 *) Some more source tree cleanups (removed obsolete files
8337 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8338 permission on "config" script to be executable) and a fix for the INSTALL
8340 [Ulf Moeller <ulf@fitug.de>]
8342 *) Remove some legacy and erroneous uses of malloc, free instead of
8344 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8346 *) Make rsa_oaep_test return non-zero on error.
8347 [Ulf Moeller <ulf@fitug.de>]
8349 *) Add support for native Solaris shared libraries. Configure
8350 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8351 if someone would make that last step automatic.
8352 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8354 *) ctx_size was not built with the right compiler during "make links". Fixed.
8357 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8358 except NULL ciphers". This means the default cipher list will no longer
8359 enable NULL ciphers. They need to be specifically enabled e.g. with
8360 the string "DEFAULT:eNULL".
8363 *) Fix to RSA private encryption routines: if p < q then it would
8364 occasionally produce an invalid result. This will only happen with
8365 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8368 *) Be less restrictive and allow also `perl util/perlpath.pl
8369 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8370 because this way one can also use an interpreter named `perl5' (which is
8371 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8372 installed as `perl').
8373 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8375 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8376 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8378 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8379 advapi32.lib to Win32 build and change the pem test comparision
8380 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8381 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8382 and crypto/des/ede_cbcm_enc.c.
8385 *) DES quad checksum was broken on big-endian architectures. Fixed.
8388 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8389 Win32 test batch file so it (might) work again. The Win32 test batch file
8390 is horrible: I feel ill....
8393 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8394 in e_os.h. Audit of header files to check ANSI and non ANSI
8395 sections: 10 functions were absent from non ANSI section and not exported
8396 from Windows DLLs. Fixed up libeay.num for new functions.
8399 *) Make `openssl version' output lines consistent.
8400 [Ralf S. Engelschall]
8402 *) Fix Win32 symbol export lists for BIO functions: Added
8403 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8404 to ms/libeay{16,32}.def.
8405 [Ralf S. Engelschall]
8407 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8408 fine under Unix and passes some trivial tests I've now added. But the
8409 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8410 added to make sure no one expects that this stuff really works in the
8411 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8412 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8414 [Ralf S. Engelschall]
8416 *) Fix the generation of two part addresses in perl.
8417 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8419 *) Add config entry for Linux on MIPS.
8420 [John Tobey <jtobey@channel1.com>]
8422 *) Make links whenever Configure is run, unless we are on Windoze.
8425 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8426 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8430 *) Add a useful kludge to allow package maintainers to specify compiler and
8431 other platforms details on the command line without having to patch the
8432 Configure script everytime: One now can use ``perl Configure
8433 <id>:<details>'', i.e. platform ids are allowed to have details appended
8434 to them (seperated by colons). This is treated as there would be a static
8435 pre-configured entry in Configure's %table under key <id> with value
8436 <details> and ``perl Configure <id>'' is called. So, when you want to
8437 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8438 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8439 now, which overrides the FreeBSD-elf entry on-the-fly.
8440 [Ralf S. Engelschall]
8442 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8445 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8446 on the `perl Configure ...' command line. This way one can compile
8447 OpenSSL libraries with Position Independent Code (PIC) which is needed
8448 for linking it into DSOs.
8449 [Ralf S. Engelschall]
8451 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8455 *) Cleaned up the LICENSE document: The official contact for any license
8456 questions now is the OpenSSL core team under openssl-core@openssl.org.
8457 And add a paragraph about the dual-license situation to make sure people
8458 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8459 to the OpenSSL toolkit.
8460 [Ralf S. Engelschall]
8462 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8463 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8464 Additonally cleaned up the `make links' target: Remove unnecessary
8465 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8466 to speed processing and no longer clutter the display with confusing
8467 stuff. Instead only the actually done links are displayed.
8468 [Ralf S. Engelschall]
8470 *) Permit null encryption ciphersuites, used for authentication only. It used
8471 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8472 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8476 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8477 signed attributes when verifying signatures (this would break them),
8478 the detached data encoding was wrong and public keys obtained using
8479 X509_get_pubkey() weren't freed.
8482 *) Add text documentation for the BUFFER functions. Also added a work around
8483 to a Win95 console bug. This was triggered by the password read stuff: the
8484 last character typed gets carried over to the next fread(). If you were
8485 generating a new cert request using 'req' for example then the last
8486 character of the passphrase would be CR which would then enter the first
8490 *) Added the new `Includes OpenSSL Cryptography Software' button as
8491 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8492 button and can be used by applications based on OpenSSL to show the
8493 relationship to the OpenSSL project.
8494 [Ralf S. Engelschall]
8496 *) Remove confusing variables in function signatures in files
8497 ssl/ssl_lib.c and ssl/ssl.h.
8498 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8500 *) Don't install bss_file.c under PREFIX/include/
8501 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8503 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8504 functions that return function pointers and has support for NT specific
8505 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8506 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8507 unsigned to signed types: this was killing the Win32 compile.
8510 *) Add new certificate file to stack functions,
8511 SSL_add_dir_cert_subjects_to_stack() and
8512 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8513 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8514 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8515 This means that Apache-SSL and similar packages don't have to mess around
8516 to add as many CAs as they want to the preferred list.
8519 *) Experiment with doxygen documentation. Currently only partially applied to
8521 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8522 openssl.doxy as the configuration file.
8525 *) Get rid of remaining C++-style comments which strict C compilers hate.
8526 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8528 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8529 compiled in by default: it has problems with large keys.
8532 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8533 DH private keys and/or callback functions which directly correspond to
8534 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8535 is needed for applications which have to configure certificates on a
8536 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8538 For the RSA certificate situation is makes no difference, but
8539 for the DSA certificate situation this fixes the "no shared cipher"
8540 problem where the OpenSSL cipher selection procedure failed because the
8541 temporary keys were not overtaken from the context and the API provided
8542 no way to reconfigure them.
8543 The new functions now let applications reconfigure the stuff and they
8544 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8545 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8546 non-public-API function ssl_cert_instantiate() is used as a helper
8547 function and also to reduce code redundancy inside ssl_rsa.c.
8548 [Ralf S. Engelschall]
8550 *) Move s_server -dcert and -dkey options out of the undocumented feature
8551 area because they are useful for the DSA situation and should be
8552 recognized by the users.
8553 [Ralf S. Engelschall]
8555 *) Fix the cipher decision scheme for export ciphers: the export bits are
8556 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8557 SSL_EXP_MASK. So, the original variable has to be used instead of the
8558 already masked variable.
8559 [Richard Levitte <levitte@stacken.kth.se>]
8561 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8562 [Richard Levitte <levitte@stacken.kth.se>]
8564 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8565 from `int' to `unsigned int' because it's a length and initialized by
8566 EVP_DigestFinal() which expects an `unsigned int *'.
8567 [Richard Levitte <levitte@stacken.kth.se>]
8569 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8570 script. Instead use the usual Shell->Perl transition trick.
8571 [Ralf S. Engelschall]
8573 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8574 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8575 -noout -modulus' as it's already the case for `openssl rsa -noout
8576 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8577 currently the public key is printed (a decision which was already done by
8578 `openssl dsa -modulus' in the past) which serves a similar purpose.
8579 Additionally the NO_RSA no longer completely removes the whole -modulus
8580 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8582 [Ralf S. Engelschall]
8584 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8585 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8586 [Arne Ansper <arne@ats.cyber.ee>]
8588 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8589 to be added. Now both 'req' and 'ca' can use new objects defined in the
8593 *) Add cool BIO that does syslog (or event log on NT).
8594 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8596 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8597 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8598 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8599 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8602 *) Add preliminary config info for new extension code.
8605 *) Make RSA_NO_PADDING really use no padding.
8606 [Ulf Moeller <ulf@fitug.de>]
8608 *) Generate errors when private/public key check is done.
8611 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8612 for some CRL extensions and new objects added.
8615 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8616 key usage extension and fuller support for authority key id.
8619 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8620 padding method for RSA, which is recommended for new applications in PKCS
8621 #1 v2.0 (RFC 2437, October 1998).
8622 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8623 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8624 against Bleichbacher's attack on RSA.
8625 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8628 *) Updates to the new SSL compression code
8629 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8631 *) Fix so that the version number in the master secret, when passed
8632 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8633 (because the server will not accept higher), that the version number
8634 is 0x03,0x01, not 0x03,0x00
8635 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8637 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8638 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8639 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8642 *) Support for RAW extensions where an arbitrary extension can be
8643 created by including its DER encoding. See apps/openssl.cnf for
8647 *) Make sure latest Perl versions don't interpret some generated C array
8648 code as Perl array code in the crypto/err/err_genc.pl script.
8649 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8651 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8652 not many people have the assembler. Various Win32 compilation fixes and
8653 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8657 *) Modify configure script 'Configure' to automatically create crypto/date.h
8658 file under Win32 and also build pem.h from pem.org. New script
8659 util/mkfiles.pl to create the MINFO file on environments that can't do a
8660 'make files': perl util/mkfiles.pl >MINFO should work.
8663 *) Major rework of DES function declarations, in the pursuit of correctness
8664 and purity. As a result, many evil casts evaporated, and some weirdness,
8665 too. You may find this causes warnings in your code. Zapping your evil
8666 casts will probably fix them. Mostly.
8669 *) Fix for a typo in asn1.h. Bug fix to object creation script
8670 obj_dat.pl. It considered a zero in an object definition to mean
8671 "end of object": none of the objects in objects.h have any zeros
8672 so it wasn't spotted.
8673 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8675 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8676 Masking (CBCM). In the absence of test vectors, the best I have been able
8677 to do is check that the decrypt undoes the encrypt, so far. Send me test
8678 vectors if you have them.
8681 *) Correct calculation of key length for export ciphers (too much space was
8682 allocated for null ciphers). This has not been tested!
8685 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8686 message is now correct (it understands "crypto" and "ssl" on its
8687 command line). There is also now an "update" option. This will update
8688 the util/ssleay.num and util/libeay.num files with any new functions.
8690 perl util/mkdef.pl crypto ssl update
8691 it will update them.
8694 *) Overhauled the Perl interface (perl/*):
8695 - ported BN stuff to OpenSSL's different BN library
8696 - made the perl/ source tree CVS-aware
8697 - renamed the package from SSLeay to OpenSSL (the files still contain
8698 their history because I've copied them in the repository)
8699 - removed obsolete files (the test scripts will be replaced
8700 by better Test::Harness variants in the future)
8701 [Ralf S. Engelschall]
8703 *) First cut for a very conservative source tree cleanup:
8704 1. merge various obsolete readme texts into doc/ssleay.txt
8705 where we collect the old documents and readme texts.
8706 2. remove the first part of files where I'm already sure that we no
8707 longer need them because of three reasons: either they are just temporary
8708 files which were left by Eric or they are preserved original files where
8709 I've verified that the diff is also available in the CVS via "cvs diff
8710 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8711 the crypto/md/ stuff).
8712 [Ralf S. Engelschall]
8714 *) More extension code. Incomplete support for subject and issuer alt
8715 name, issuer and authority key id. Change the i2v function parameters
8716 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8717 what that's for :-) Fix to ASN1 macro which messed up
8718 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8721 *) Preliminary support for ENUMERATED type. This is largely copied from the
8725 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8726 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8728 *) Make sure `make rehash' target really finds the `openssl' program.
8729 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8731 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8732 like to hear about it if this slows down other processors.
8735 *) Add CygWin32 platform information to Configure script.
8736 [Alan Batie <batie@aahz.jf.intel.com>]
8738 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8739 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8741 *) New program nseq to manipulate netscape certificate sequences
8744 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8748 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8749 but the BN code had some problems that would cause failures when
8750 doing certificate verification and some other functions.
8751 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8753 *) Add ASN1 and PEM code to support netscape certificate sequences.
8756 *) Add ASN1 and PEM code to support netscape certificate sequences.
8759 *) Add several PKIX and private extended key usage OIDs.
8762 *) Modify the 'ca' program to handle the new extension code. Modify
8763 openssl.cnf for new extension format, add comments.
8766 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8767 and add a sample to openssl.cnf so req -x509 now adds appropriate
8771 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8772 error code, add initial support to X509_print() and x509 application.
8775 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8776 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8777 stuff is currently isolated and isn't even compiled yet.
8780 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8781 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8782 Removed the versions check from X509 routines when loading extensions:
8783 this allows certain broken certificates that don't set the version
8784 properly to be processed.
8787 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8788 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8789 can still be regenerated with "make depend".
8792 *) Spelling mistake in C version of CAST-128.
8793 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8795 *) Changes to the error generation code. The perl script err-code.pl
8796 now reads in the old error codes and retains the old numbers, only
8797 adding new ones if necessary. It also only changes the .err files if new
8798 codes are added. The makefiles have been modified to only insert errors
8799 when needed (to avoid needlessly modifying header files). This is done
8800 by only inserting errors if the .err file is newer than the auto generated
8801 C file. To rebuild all the error codes from scratch (the old behaviour)
8802 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8803 or delete all the .err files.
8806 *) CAST-128 was incorrectly implemented for short keys. The C version has
8807 been fixed, but is untested. The assembler versions are also fixed, but
8808 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8809 to regenerate it if needed.
8810 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8811 Hagino <itojun@kame.net>]
8813 *) File was opened incorrectly in randfile.c.
8814 [Ulf Möller <ulf@fitug.de>]
8816 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8817 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8818 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8819 al: it's just almost always a UTCTime. Note this patch adds new error
8820 codes so do a "make errors" if there are problems.
8823 *) Correct Linux 1 recognition in config.
8824 [Ulf Möller <ulf@fitug.de>]
8826 *) Remove pointless MD5 hash when using DSA keys in ca.
8827 [Anonymous <nobody@replay.com>]
8829 *) Generate an error if given an empty string as a cert directory. Also
8830 generate an error if handed NULL (previously returned 0 to indicate an
8831 error, but didn't set one).
8832 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8834 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8837 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8838 parameters. This was causing a warning which killed off the Win32 compile.
8841 *) Remove C++ style comments from crypto/bn/bn_local.h.
8842 [Neil Costigan <neil.costigan@celocom.com>]
8844 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8845 based on a text string, looking up short and long names and finally
8846 "dot" format. The "dot" format stuff didn't work. Added new function
8847 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8848 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8849 OID is not part of the table.
8852 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8853 X509_LOOKUP_by_alias().
8856 *) Sort openssl functions by name.
8859 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8860 encryption from sample DSA keys (in case anyone is interested the password
8864 *) Make _all_ *_free functions accept a NULL pointer.
8865 [Frans Heymans <fheymans@isaserver.be>]
8867 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8869 [Anonymous <nobody@replay.com>]
8871 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8872 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8874 *) Don't blow it for numeric -newkey arguments to apps/req.
8875 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8877 *) Temp key "for export" tests were wrong in s3_srvr.c.
8878 [Anonymous <nobody@replay.com>]
8880 *) Add prototype for temp key callback functions
8881 SSL_CTX_set_tmp_{rsa,dh}_callback().
8884 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8885 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8888 *) X509_name_add_entry() freed the wrong thing after an error.
8889 [Arne Ansper <arne@ats.cyber.ee>]
8891 *) rsa_eay.c would attempt to free a NULL context.
8892 [Arne Ansper <arne@ats.cyber.ee>]
8894 *) BIO_s_socket() had a broken should_retry() on Windoze.
8895 [Arne Ansper <arne@ats.cyber.ee>]
8897 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8898 [Arne Ansper <arne@ats.cyber.ee>]
8900 *) Make sure the already existing X509_STORE->depth variable is initialized
8901 in X509_STORE_new(), but document the fact that this variable is still
8902 unused in the certificate verification process.
8903 [Ralf S. Engelschall]
8905 *) Fix the various library and apps files to free up pkeys obtained from
8906 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8909 *) Fix reference counting in X509_PUBKEY_get(). This makes
8910 demos/maurice/example2.c work, amongst others, probably.
8911 [Steve Henson and Ben Laurie]
8913 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8914 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8915 are no longer created. This way we have a single and consistent command
8916 line interface `openssl <command>', similar to `cvs <command>'.
8917 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8919 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8920 BIT STRING wrapper always have zero unused bits.
8923 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8926 *) Make the top-level INSTALL documentation easier to understand.
8929 *) Makefiles updated to exit if an error occurs in a sub-directory
8930 make (including if user presses ^C) [Paul Sutton]
8932 *) Make Montgomery context stuff explicit in RSA data structure.
8935 *) Fix build order of pem and err to allow for generated pem.h.
8938 *) Fix renumbering bug in X509_NAME_delete_entry().
8941 *) Enhanced the err-ins.pl script so it makes the error library number
8942 global and can add a library name. This is needed for external ASN1 and
8943 other error libraries.
8946 *) Fixed sk_insert which never worked properly.
8949 *) Fix ASN1 macros so they can handle indefinite length construted
8950 EXPLICIT tags. Some non standard certificates use these: they can now
8954 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8955 into a single doc/ssleay.txt bundle. This way the information is still
8956 preserved but no longer messes up this directory. Now it's new room for
8957 the new set of documenation files.
8958 [Ralf S. Engelschall]
8960 *) SETs were incorrectly DER encoded. This was a major pain, because they
8961 shared code with SEQUENCEs, which aren't coded the same. This means that
8962 almost everything to do with SETs or SEQUENCEs has either changed name or
8963 number of arguments.
8964 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8966 *) Fix test data to work with the above.
8969 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8970 was already fixed by Eric for 0.9.1 it seems.
8971 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8973 *) Autodetect FreeBSD3.
8976 *) Fix various bugs in Configure. This affects the following platforms:
8980 unixware-2.0-pentium
8984 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8985 before they are needed.
8988 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8992 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8994 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8995 changed SSLeay to OpenSSL in version strings.
8996 [Ralf S. Engelschall]
8998 *) Some fixups to the top-level documents.
9001 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9002 because the symlink to include/ was missing.
9003 [Ralf S. Engelschall]
9005 *) Incorporated the popular no-RSA/DSA-only patches
9006 which allow to compile a RSA-free SSLeay.
9007 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9009 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9010 when "ssleay" is still not found.
9011 [Ralf S. Engelschall]
9013 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9014 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9016 *) Updated the README file.
9017 [Ralf S. Engelschall]
9019 *) Added various .cvsignore files in the CVS repository subdirs
9020 to make a "cvs update" really silent.
9021 [Ralf S. Engelschall]
9023 *) Recompiled the error-definition header files and added
9024 missing symbols to the Win32 linker tables.
9025 [Ralf S. Engelschall]
9027 *) Cleaned up the top-level documents;
9028 o new files: CHANGES and LICENSE
9029 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9030 o merged COPYRIGHT into LICENSE
9031 o removed obsolete TODO file
9032 o renamed MICROSOFT to INSTALL.W32
9033 [Ralf S. Engelschall]
9035 *) Removed dummy files from the 0.9.1b source tree:
9036 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9037 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9038 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9039 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9040 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9041 [Ralf S. Engelschall]
9043 *) Added various platform portability fixes.
9046 *) The Genesis of the OpenSSL rpject:
9047 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9048 Young and Tim J. Hudson created while they were working for C2Net until
9050 [The OpenSSL Project]
9053 Changes between 0.9.0b and 0.9.1b [not released]
9055 *) Updated a few CA certificates under certs/
9058 *) Changed some BIGNUM api stuff.
9061 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9062 DGUX x86, Linux Alpha, etc.
9065 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9066 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9070 *) Add -strparse option to asn1pars program which parses nested
9072 [Dr Stephen Henson <shenson@bigfoot.com>]
9074 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9077 *) DSA fix for "ca" program.
9080 *) Added "-genkey" option to "dsaparam" program.
9083 *) Added RIPE MD160 (rmd160) message digest.
9086 *) Added -a (all) option to "ssleay version" command.
9089 *) Added PLATFORM define which is the id given to Configure.
9092 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9095 *) Extended the ASN.1 parser routines.
9098 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9101 *) Added a BN_CTX to the BN library.
9104 *) Fixed the weak key values in DES library
9107 *) Changed API in EVP library for cipher aliases.
9110 *) Added support for RC2/64bit cipher.
9113 *) Converted the lhash library to the crypto/mem.c functions.
9116 *) Added more recognized ASN.1 object ids.
9119 *) Added more RSA padding checks for SSL/TLS.
9122 *) Added BIO proxy/filter functionality.
9125 *) Added extra_certs to SSL_CTX which can be used
9126 send extra CA certificates to the client in the CA cert chain sending
9127 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9130 *) Now Fortezza is denied in the authentication phase because
9131 this is key exchange mechanism is not supported by SSLeay at all.
9134 *) Additional PKCS1 checks.
9137 *) Support the string "TLSv1" for all TLS v1 ciphers.
9140 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9141 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9144 *) Fixed a few memory leaks.
9147 *) Fixed various code and comment typos.
9150 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9151 bytes sent in the client random.
9152 [Edward Bishop <ebishop@spyglass.com>]
projects / thirdparty / openssl.git / blob