5 Changes between 0.9.8k and 1.0 [xx XXX xxxx]
7 *) Support use of registered digest and cipher names for dgst and cipher
8 commands instead of having to add each one as a special case. So now
15 openssl dgst -sha256 foo
17 and this works for ENGINE based algorithms too.
21 *) Update Gost ENGINE to support parameter files.
22 [Victor B. Wagner <vitus@cryptocom.ru>]
24 *) Support GeneralizedTime in ca utility.
25 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
27 *) Enhance the hash format used for certificate directory links. The new
28 form uses the canonical encoding (meaning equivalent names will work
29 even if they aren't identical) and uses SHA1 instead of MD5. This form
30 is incompatible with the older format and as a result c_rehash should
31 be used to rebuild symbolic links.
34 *) Make PKCS#8 the default write format for private keys, replacing the
35 traditional format. This form is standardised, more secure and doesn't
36 include an implicit MD5 dependency.
39 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
40 committed to OpenSSL should pass this lot as a minimum.
43 *) Add session ticket override functionality for use by EAP-FAST.
44 [Jouni Malinen <j@w1.fi>]
46 *) Modify HMAC functions to return a value. Since these can be implemented
47 in an ENGINE errors can occur.
50 *) Type-checked OBJ_bsearch_ex.
53 *) Type-checked OBJ_bsearch. Also some constification necessitated
54 by type-checking. Still to come: TXT_DB, bsearch(?),
55 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
59 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
60 seconds to a tm structure directly, instead of going through OS
61 specific date routines. This avoids any issues with OS routines such
62 as the year 2038 bug. New *_adj() functions for ASN1 time structures
63 and X509_time_adj_ex() to cover the extended range. The existing
64 X509_time_adj() is still usable and will no longer have any date issues.
67 *) Delta CRL support. New use deltas option which will attempt to locate
68 and search any appropriate delta CRLs available.
70 This work was sponsored by Google.
73 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
74 code and add additional score elements. Validate alternate CRL paths
75 as part of the CRL checking and indicate a new error "CRL path validation
76 error" in this case. Applications wanting additional details can use
77 the verify callback and check the new "parent" field. If this is not
78 NULL CRL path validation is taking place. Existing applications wont
79 see this because it requires extended CRL support which is off by
82 This work was sponsored by Google.
85 *) Support for freshest CRL extension.
87 This work was sponsored by Google.
90 *) Initial indirect CRL support. Currently only supported in the CRLs
91 passed directly and not via lookup. Process certificate issuer
92 CRL entry extension and lookup CRL entries by bother issuer name
93 and serial number. Check and process CRL issuer entry in IDP extension.
95 This work was sponsored by Google.
98 *) Add support for distinct certificate and CRL paths. The CRL issuer
99 certificate is validated separately in this case. Only enabled if
100 an extended CRL support flag is set: this flag will enable additional
101 CRL functionality in future.
103 This work was sponsored by Google.
106 *) Add support for policy mappings extension.
108 This work was sponsored by Google.
111 *) Fixes to pathlength constraint, self issued certificate handling,
112 policy processing to align with RFC3280 and PKITS tests.
114 This work was sponsored by Google.
117 *) Support for name constraints certificate extension. DN, email, DNS
118 and URI types are currently supported.
120 This work was sponsored by Google.
123 *) To cater for systems that provide a pointer-based thread ID rather
124 than numeric, deprecate the current numeric thread ID mechanism and
125 replace it with a structure and associated callback type. This
126 mechanism allows a numeric "hash" to be extracted from a thread ID in
127 either case, and on platforms where pointers are larger than 'long',
128 mixing is done to help ensure the numeric 'hash' is usable even if it
129 can't be guaranteed unique. The default mechanism is to use "&errno"
130 as a pointer-based thread ID to distinguish between threads.
132 Applications that want to provide their own thread IDs should now use
133 CRYPTO_THREADID_set_callback() to register a callback that will call
134 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
136 Note that ERR_remove_state() is now deprecated, because it is tied
137 to the assumption that thread IDs are numeric. ERR_remove_state(0)
138 to free the current thread's error state should be replaced by
139 ERR_remove_thread_state(NULL).
141 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
142 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
143 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
144 application was previously providing a numeric thread callback that
145 was inappropriate for distinguishing threads, then uniqueness might
146 have been obtained with &errno that happened immediately in the
147 intermediate development versions of OpenSSL; this is no longer the
148 case, the numeric thread callback will now override the automatic use
150 [Geoff Thorpe, with help from Bodo Moeller]
152 *) Initial support for different CRL issuing certificates. This covers a
153 simple case where the self issued certificates in the chain exist and
154 the real CRL issuer is higher in the existing chain.
156 This work was sponsored by Google.
159 *) Removed effectively defunct crypto/store from the build.
162 *) Revamp of STACK to provide stronger type-checking. Still to come:
163 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
164 ASN1_STRING, CONF_VALUE.
167 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
168 RAM on SSL connections. This option can save about 34k per idle SSL.
171 *) Revamp of LHASH to provide stronger type-checking. Still to come:
172 STACK, TXT_DB, bsearch, qsort.
175 *) Initial support for Cryptographic Message Syntax (aka CMS) based
176 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
177 support for data, signedData, compressedData, digestedData and
178 encryptedData, envelopedData types included. Scripts to check against
179 RFC4134 examples draft and interop and consistency checks of many
180 content types and variants.
183 *) Add options to enc utility to support use of zlib compression BIO.
186 *) Extend mk1mf to support importing of options and assembly language
187 files from Configure script, currently only included in VC-WIN32.
188 The assembly language rules can now optionally generate the source
189 files from the associated perl scripts.
192 *) Implement remaining functionality needed to support GOST ciphersuites.
193 Interop testing has been performed using CryptoPro implementations.
194 [Victor B. Wagner <vitus@cryptocom.ru>]
196 *) s390x assembler pack.
199 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
203 *) Implement Opaque PRF Input TLS extension as specified in
204 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
205 official specification yet and no extension type assignment by
206 IANA exists, this extension (for now) will have to be explicitly
207 enabled when building OpenSSL by providing the extension number
208 to use. For example, specify an option
210 -DTLSEXT_TYPE_opaque_prf_input=0x9527
212 to the "config" or "Configure" script to enable the extension,
213 assuming extension number 0x9527 (which is a completely arbitrary
214 and unofficial assignment based on the MD5 hash of the Internet
215 Draft). Note that by doing so, you potentially lose
216 interoperability with other TLS implementations since these might
217 be using the same extension number for other purposes.
219 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
220 opaque PRF input value to use in the handshake. This will create
221 an interal copy of the length-'len' string at 'src', and will
222 return non-zero for success.
224 To get more control and flexibility, provide a callback function
227 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
228 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
232 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
235 Callback function 'cb' will be called in handshakes, and is
236 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
237 Argument 'arg' is for application purposes (the value as given to
238 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
239 be provided to the callback function). The callback function
240 has to return non-zero to report success: usually 1 to use opaque
241 PRF input just if possible, or 2 to enforce use of the opaque PRF
242 input. In the latter case, the library will abort the handshake
243 if opaque PRF input is not successfully negotiated.
245 Arguments 'peerinput' and 'len' given to the callback function
246 will always be NULL and 0 in the case of a client. A server will
247 see the client's opaque PRF input through these variables if
248 available (NULL and 0 otherwise). Note that if the server
249 provides an opaque PRF input, the length must be the same as the
250 length of the client's opaque PRF input.
252 Note that the callback function will only be called when creating
253 a new session (session resumption can resume whatever was
254 previously negotiated), and will not be called in SSL 2.0
255 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
256 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
257 for applications that need to enforce opaque PRF input.
261 *) Update ssl code to support digests other than SHA1+MD5 for handshake
264 [Victor B. Wagner <vitus@cryptocom.ru>]
266 *) Add RFC4507 support to OpenSSL. This includes the corrections in
267 RFC4507bis. The encrypted ticket format is an encrypted encoded
268 SSL_SESSION structure, that way new session features are automatically
271 If a client application caches session in an SSL_SESSION structure
272 support is transparent because tickets are now stored in the encoded
275 The SSL_CTX structure automatically generates keys for ticket
276 protection in servers so again support should be possible
277 with no application modification.
279 If a client or server wishes to disable RFC4507 support then the option
280 SSL_OP_NO_TICKET can be set.
282 Add a TLS extension debugging callback to allow the contents of any client
283 or server extensions to be examined.
285 This work was sponsored by Google.
288 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
289 OpenSSL should now compile cleanly on gcc 4.2
290 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
292 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
293 support including streaming MAC support: this is required for GOST
295 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
297 *) Add option -stream to use PKCS#7 streaming in smime utility. New
298 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
299 to output in BER and PEM format.
302 *) Experimental support for use of HMAC via EVP_PKEY interface. This
303 allows HMAC to be handled via the EVP_DigestSign*() interface. The
304 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
305 ENGINE support for HMAC keys which are unextractable. New -mac and
306 -macopt options to dgst utility.
309 *) New option -sigopt to dgst utility. Update dgst to use
310 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
311 alternative signing paramaters such as X9.31 or PSS in the dgst
315 *) Change ssl_cipher_apply_rule(), the internal function that does
316 the work each time a ciphersuite string requests enabling
317 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
318 removing ("!foo+bar") a class of ciphersuites: Now it maintains
319 the order of disabled ciphersuites such that those ciphersuites
320 that most recently went from enabled to disabled not only stay
321 in order with respect to each other, but also have higher priority
322 than other disabled ciphersuites the next time ciphersuites are
325 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
326 the same ciphersuites as with "HIGH" alone, but in a specific
327 order where the PSK ciphersuites come first (since they are the
328 most recently disabled ciphersuites when "HIGH" is parsed).
330 Also, change ssl_create_cipher_list() (using this new
331 funcionality) such that between otherwise identical
332 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
336 *) Change ssl_create_cipher_list() so that it automatically
337 arranges the ciphersuites in reasonable order before starting
338 to process the rule string. Thus, the definition for "DEFAULT"
339 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
340 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
341 This makes it much easier to arrive at a reasonable default order
342 in applications for which anonymous ciphers are OK (meaning
343 that you can't actually use DEFAULT).
344 [Bodo Moeller; suggested by Victor Duchovni]
346 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
347 processing) into multiple integers instead of setting
348 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
349 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
350 (These masks as well as the individual bit definitions are hidden
351 away into the non-exported interface ssl/ssl_locl.h, so this
352 change to the definition of the SSL_CIPHER structure shouldn't
353 affect applications.) This give us more bits for each of these
354 categories, so there is no longer a need to coagulate AES128 and
355 AES256 into a single algorithm bit, and to coagulate Camellia128
356 and Camellia256 into a single algorithm bit, which has led to all
359 Thus, among other things, the kludge introduced in 0.9.7m and
360 0.9.8e for masking out AES256 independently of AES128 or masking
361 out Camellia256 independently of AES256 is not needed here in 0.9.9.
363 With the change, we also introduce new ciphersuite aliases that
364 so far were missing: "AES128", "AES256", "CAMELLIA128", and
368 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
369 Use the leftmost N bytes of the signature input if the input is
370 larger than the prime q (with N being the size in bytes of q).
373 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
374 it yet and it is largely untested.
377 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
380 *) Initial incomplete changes to avoid need for function casts in OpenSSL
381 some compilers (gcc 4.2 and later) reject their use. Safestack is
382 reimplemented. Update ASN1 to avoid use of legacy functions.
385 *) Win32/64 targets are linked with Winsock2.
388 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
389 to external functions. This can be used to increase CRL handling
390 efficiency especially when CRLs are very large by (for example) storing
391 the CRL revoked certificates in a database.
394 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
395 new CRLs added to a directory can be used. New command line option
396 -verify_return_error to s_client and s_server. This causes real errors
397 to be returned by the verify callback instead of carrying on no matter
398 what. This reflects the way a "real world" verify callback would behave.
401 *) GOST engine, supporting several GOST algorithms and public key formats.
402 Kindly donated by Cryptocom.
405 *) Partial support for Issuing Distribution Point CRL extension. CRLs
406 partitioned by DP are handled but no indirect CRL or reason partitioning
407 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
408 selected via a scoring technique which handles IDP and AKID in CRLs.
411 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
412 will ultimately be used for all verify operations: this will remove the
413 X509_STORE dependency on certificate verification and allow alternative
414 lookup methods. X509_STORE based implementations of these two callbacks.
417 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
418 Modify get_crl() to find a valid (unexpired) CRL if possible.
421 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
422 this would be called X509_CRL_cmp() but that name is already used by
423 a function that just compares CRL issuer names. Cache several CRL
424 extensions in X509_CRL structure and cache CRLDP in X509.
427 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
428 this maps equivalent X509_NAME structures into a consistent structure.
429 Name comparison can then be performed rapidly using memcmp().
432 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
436 *) Allow digests to supply their own micalg string for S/MIME type using
437 the ctrl EVP_MD_CTRL_MICALG.
440 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
441 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
442 ctrl. It can then customise the structure before and/or after signing
446 *) New function OBJ_add_sigid() to allow application defined signature OIDs
447 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
448 to free up any added signature OIDs.
451 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
452 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
453 digest and cipher tables. New options added to openssl utility:
454 list-message-digest-algorithms and list-cipher-algorithms.
457 *) Change the array representation of binary polynomials: the list
458 of degrees of non-zero coefficients is now terminated with -1.
459 Previously it was terminated with 0, which was also part of the
460 value; thus, the array representation was not applicable to
461 polynomials where t^0 has coefficient zero. This change makes
462 the array representation useful in a more general context.
465 *) Various modifications and fixes to SSL/TLS cipher string
466 handling. For ECC, the code now distinguishes between fixed ECDH
467 with RSA certificates on the one hand and with ECDSA certificates
468 on the other hand, since these are separate ciphersuites. The
469 unused code for Fortezza ciphersuites has been removed.
471 For consistency with EDH, ephemeral ECDH is now called "EECDH"
472 (not "ECDHE"). For consistency with the code for DH
473 certificates, use of ECDH certificates is now considered ECDH
474 authentication, not RSA or ECDSA authentication (the latter is
475 merely the CA's signing algorithm and not actively used in the
478 The temporary ciphersuite alias "ECCdraft" is no longer
479 available, and ECC ciphersuites are no longer excluded from "ALL"
480 and "DEFAULT". The following aliases now exist for RFC 4492
481 ciphersuites, most of these by analogy with the DH case:
483 kECDHr - ECDH cert, signed with RSA
484 kECDHe - ECDH cert, signed with ECDSA
485 kECDH - ECDH cert (signed with either RSA or ECDSA)
486 kEECDH - ephemeral ECDH
487 ECDH - ECDH cert or ephemeral ECDH
493 AECDH - anonymous ECDH
494 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
498 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
499 Use correct micalg parameters depending on digest(s) in signed message.
502 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
503 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
506 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
507 an engine to register a method. Add ENGINE lookups for methods and
508 functional reference processing.
511 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
512 EVP_{Sign,Verify}* which allow an application to customise the signature
516 *) New -resign option to smime utility. This adds one or more signers
517 to an existing PKCS#7 signedData structure. Also -md option to use an
518 alternative message digest algorithm for signing.
521 *) Tidy up PKCS#7 routines and add new functions to make it easier to
522 create PKCS7 structures containing multiple signers. Update smime
523 application to support multiple signers.
526 *) New -macalg option to pkcs12 utility to allow setting of an alternative
530 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
531 Reorganize PBE internals to lookup from a static table using NIDs,
532 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
533 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
534 PRF which will be automatically used with PBES2.
537 *) Replace the algorithm specific calls to generate keys in "req" with the
541 *) Update PKCS#7 enveloped data routines to use new API. This is now
542 supported by any public key method supporting the encrypt operation. A
543 ctrl is added to allow the public key algorithm to examine or modify
544 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
548 *) Add a ctrl to asn1 method to allow a public key algorithm to express
549 a default digest type to use. In most cases this will be SHA1 but some
550 algorithms (such as GOST) need to specify an alternative digest. The
551 return value indicates how strong the prefernce is 1 means optional and
552 2 is mandatory (that is it is the only supported type). Modify
553 ASN1_item_sign() to accept a NULL digest argument to indicate it should
554 use the default md. Update openssl utilities to use the default digest
555 type for signing if it is not explicitly indicated.
558 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
559 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
560 signing method from the key type. This effectively removes the link
561 between digests and public key types.
564 *) Add an OID cross reference table and utility functions. Its purpose is to
565 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
566 rsaEncryption. This will allow some of the algorithm specific hackery
567 needed to use the correct OID to be removed.
570 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
571 structures for PKCS7_sign(). They are now set up by the relevant public
575 *) Add provisional EC pkey method with support for ECDSA and ECDH.
578 *) Add support for key derivation (agreement) in the API, DH method and
582 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
583 public and private key formats. As a side effect these add additional
584 command line functionality not previously available: DSA signatures can be
585 generated and verified using pkeyutl and DH key support and generation in
590 [Oliver Tappe <zooey@hirschkaefer.de>]
592 *) New make target "install_html_docs" installs HTML renditions of the
594 [Oliver Tappe <zooey@hirschkaefer.de>]
596 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
597 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
598 support key and parameter generation and add initial key generation
599 functionality for RSA.
602 *) Add functions for main EVP_PKEY_method operations. The undocumented
603 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
604 EVP_PKEY_{encrypt,decrypt}_old.
607 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
608 key API, doesn't do much yet.
611 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
612 public key algorithms. New option to openssl utility:
613 "list-public-key-algorithms" to print out info.
616 *) Implement the Supported Elliptic Curves Extension for
617 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
620 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
621 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
624 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
625 utilities such as rsa, dsa, dsaparam etc except they process any key
629 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
630 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
631 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
635 *) Initial support for pluggable public key ASN1.
636 De-spaghettify the public key ASN1 handling. Move public and private
637 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
638 algorithm specific handling to a single module within the relevant
639 algorithm directory. Add functions to allow (near) opaque processing
640 of public and private key structures.
643 *) Implement the Supported Point Formats Extension for
644 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
647 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
648 for the psk identity [hint] and the psk callback functions to the
649 SSL_SESSION, SSL and SSL_CTX structure.
652 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
656 SSL_CTX_use_psk_identity_hint
657 SSL_get_psk_identity_hint
659 SSL_use_psk_identity_hint
661 [Mika Kousa and Pasi Eronen of Nokia Corporation]
663 *) Add RFC 3161 compliant time stamp request creation, response generation
664 and response verification functionality.
665 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
667 *) Add initial support for TLS extensions, specifically for the server_name
668 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
669 have new members for a host name. The SSL data structure has an
670 additional member SSL_CTX *initial_ctx so that new sessions can be
671 stored in that context to allow for session resumption, even after the
672 SSL has been switched to a new SSL_CTX in reaction to a client's
673 server_name extension.
675 New functions (subject to change):
678 SSL_get_servername_type()
681 New CTRL codes and macros (subject to change):
683 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
684 - SSL_CTX_set_tlsext_servername_callback()
685 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
686 - SSL_CTX_set_tlsext_servername_arg()
687 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
689 openssl s_client has a new '-servername ...' option.
691 openssl s_server has new options '-servername_host ...', '-cert2 ...',
692 '-key2 ...', '-servername_fatal' (subject to change). This allows
693 testing the HostName extension for a specific single host name ('-cert'
694 and '-key' remain fallbacks for handshakes without HostName
695 negotiation). If the unrecogninzed_name alert has to be sent, this by
696 default is a warning; it becomes fatal with the '-servername_fatal'
699 [Peter Sylvester, Remy Allais, Christophe Renou]
701 *) Whirlpool hash implementation is added.
704 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
705 bn(64,32). Because of instruction set limitations it doesn't have
706 any negative impact on performance. This was done mostly in order
707 to make it possible to share assembler modules, such as bn_mul_mont
708 implementations, between 32- and 64-bit builds without hassle.
711 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
712 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
716 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
717 dedicated Montgomery multiplication procedure, is introduced.
718 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
719 "64-bit" performance on certain 32-bit targets.
722 *) New option SSL_OP_NO_COMP to disable use of compression selectively
723 in SSL structures. New SSL ctrl to set maximum send fragment size.
724 Save memory by seeting the I/O buffer sizes dynamically instead of
725 using the maximum available value.
728 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
729 in addition to the text details.
732 *) Very, very preliminary EXPERIMENTAL support for printing of general
733 ASN1 structures. This currently produces rather ugly output and doesn't
734 handle several customised structures at all.
737 *) Integrated support for PVK file format and some related formats such
738 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
739 these in the 'rsa' and 'dsa' utilities.
742 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
745 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
746 place for the (very old) "NETSCAPE" format certificates which are now
747 handled using new ASN1 code equivalents.
750 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
751 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
752 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
755 *) Modify CRL distribution points extension code to print out previously
756 unsupported fields. Enhance extension setting code to allow setting of
760 *) Add print and set support for Issuing Distribution Point CRL extension.
763 *) Change 'Configure' script to enable Camellia by default.
766 Changes between 0.9.8k and 0.9.8l [xx XXX xxxx]
769 [Ilya O. <vrghost@gmail.com>]
771 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
773 *) Don't set val to NULL when freeing up structures, it is freed up by
774 underlying code. If sizeof(void *) > sizeof(long) this can result in
775 zeroing past the valid field. (CVE-2009-0789)
776 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
778 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
779 checked correctly. This would allow some invalid signed attributes to
780 appear to verify correctly. (CVE-2009-0591)
781 [Ivan Nestlerode <inestlerode@us.ibm.com>]
783 *) Reject UniversalString and BMPString types with invalid lengths. This
784 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
785 a legal length. (CVE-2009-0590)
788 *) Set S/MIME signing as the default purpose rather than setting it
789 unconditionally. This allows applications to override it at the store
793 *) Permit restricted recursion of ASN1 strings. This is needed in practice
794 to handle some structures.
797 *) Improve efficiency of mem_gets: don't search whole buffer each time
799 [Jeremy Shapiro <jnshapir@us.ibm.com>]
801 *) New -hex option for openssl rand.
804 *) Print out UTF8String and NumericString when parsing ASN1.
807 *) Support NumericString type for name components.
810 *) Allow CC in the environment to override the automatically chosen
811 compiler. Note that nothing is done to ensure flags work with the
815 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
817 *) Properly check EVP_VerifyFinal() and similar return values
819 [Ben Laurie, Bodo Moeller, Google Security Team]
821 *) Enable TLS extensions by default.
824 *) Allow the CHIL engine to be loaded, whether the application is
825 multithreaded or not. (This does not release the developer from the
826 obligation to set up the dynamic locking callbacks.)
827 [Sander Temme <sander@temme.net>]
829 *) Use correct exit code if there is an error in dgst command.
830 [Steve Henson; problem pointed out by Roland Dirlewanger]
832 *) Tweak Configure so that you need to say "experimental-jpake" to enable
833 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
836 *) Add experimental JPAKE support, including demo authentication in
837 s_client and s_server.
840 *) Set the comparison function in v3_addr_canonize().
841 [Rob Austein <sra@hactrn.net>]
843 *) Add support for XMPP STARTTLS in s_client.
844 [Philip Paeps <philip@freebsd.org>]
846 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
847 to ensure that even with this option, only ciphersuites in the
848 server's preference list will be accepted. (Note that the option
849 applies only when resuming a session, so the earlier behavior was
850 just about the algorithm choice for symmetric cryptography.)
853 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
855 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
856 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
859 *) The fix in 0.9.8c that supposedly got rid of unsafe
860 double-checked locking was incomplete for RSA blinding,
861 addressing just one layer of what turns out to have been
862 doubly unsafe triple-checked locking.
864 So now fix this for real by retiring the MONT_HELPER macro
865 in crypto/rsa/rsa_eay.c.
867 [Bodo Moeller; problem pointed out by Marius Schilder]
869 *) Various precautionary measures:
871 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
873 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
874 (NB: This would require knowledge of the secret session ticket key
875 to exploit, in which case you'd be SOL either way.)
877 - Change bn_nist.c so that it will properly handle input BIGNUMs
878 outside the expected range.
880 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
883 [Neel Mehta, Bodo Moeller]
885 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
886 the load fails. Useful for distros.
887 [Ben Laurie and the FreeBSD team]
889 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
892 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
895 *) Expand ENGINE to support engine supplied SSL client certificate functions.
897 This work was sponsored by Logica.
900 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
901 keystores. Support for SSL/TLS client authentication too.
902 Not compiled unless enable-capieng specified to Configure.
904 This work was sponsored by Logica.
907 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
908 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
909 attribute creation routines such as certifcate requests and PKCS#12
913 Changes between 0.9.8g and 0.9.8h [28 May 2008]
915 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
916 handshake which could lead to a cilent crash as found using the
917 Codenomicon TLS test suite (CVE-2008-1672)
918 [Steve Henson, Mark Cox]
920 *) Fix double free in TLS server name extensions which could lead to
921 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
924 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
926 Clear the error queue to ensure that error entries left from
927 older function calls do not interfere with the correct operation.
928 [Lutz Jaenicke, Erik de Castro Lopo]
930 *) Remove root CA certificates of commercial CAs:
932 The OpenSSL project does not recommend any specific CA and does not
933 have any policy with respect to including or excluding any CA.
934 Therefore it does not make any sense to ship an arbitrary selection
935 of root CA certificates with the OpenSSL software.
938 *) RSA OAEP patches to fix two separate invalid memory reads.
939 The first one involves inputs when 'lzero' is greater than
940 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
941 before the beginning of from). The second one involves inputs where
942 the 'db' section contains nothing but zeroes (there is a one-byte
943 invalid read after the end of 'db').
944 [Ivan Nestlerode <inestlerode@us.ibm.com>]
946 *) Partial backport from 0.9.9-dev:
948 Introduce bn_mul_mont (dedicated Montgomery multiplication
949 procedure) as a candidate for BIGNUM assembler implementation.
950 While 0.9.9-dev uses assembler for various architectures, only
951 x86_64 is available by default here in the 0.9.8 branch, and
952 32-bit x86 is available through a compile-time setting.
954 To try the 32-bit x86 assembler implementation, use Configure
955 option "enable-montasm" (which exists only for this backport).
957 As "enable-montasm" for 32-bit x86 disclaims code stability
958 anyway, in this constellation we activate additional code
959 backported from 0.9.9-dev for further performance improvements,
960 namely BN_from_montgomery_word. (To enable this otherwise,
961 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
963 [Andy Polyakov (backport partially by Bodo Moeller)]
965 *) Add TLS session ticket callback. This allows an application to set
966 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
967 values. This is useful for key rollover for example where several key
968 sets may exist with different names.
971 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
972 This was broken until now in 0.9.8 releases, such that the only way
973 a registered ENGINE could be used (assuming it initialises
974 successfully on the host) was to explicitly set it as the default
975 for the relevant algorithms. This is in contradiction with 0.9.7
976 behaviour and the documentation. With this fix, when an ENGINE is
977 registered into a given algorithm's table of implementations, the
978 'uptodate' flag is reset so that auto-discovery will be used next
979 time a new context for that algorithm attempts to select an
981 [Ian Lister (tweaked by Geoff Thorpe)]
983 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
984 implemention in the following ways:
986 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
989 Lack of BER streaming support means one pass streaming processing is
990 only supported if data is detached: setting the streaming flag is
991 ignored for embedded content.
993 CMS support is disabled by default and must be explicitly enabled
994 with the enable-cms configuration option.
997 *) Update the GMP engine glue to do direct copies between BIGNUM and
998 mpz_t when openssl and GMP use the same limb size. Otherwise the
999 existing "conversion via a text string export" trick is still used.
1000 [Paul Sheer <paulsheer@gmail.com>]
1002 *) Zlib compression BIO. This is a filter BIO which compressed and
1003 uncompresses any data passed through it.
1006 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1007 RFC3394 compatible AES key wrapping.
1010 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1011 sets string data without copying. X509_ALGOR_set0() and
1012 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1013 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1014 from an X509_ATTRIBUTE structure optionally checking it occurs only
1015 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1019 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1020 to get the expected BN_FLG_CONSTTIME behavior.
1021 [Bodo Moeller (Google)]
1025 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1026 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1027 - added some more tests to do_tests.pl
1028 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1029 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1030 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1031 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1032 - various changes to netware.pl to enable gcc-cross builds on Win32
1034 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1035 - various changes to fix missing prototype warnings
1036 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1037 - added AES, WHIRLPOOL and CPUID assembler code to build files
1038 - added missing AES assembler make rules to mk1mf.pl
1039 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1040 [Guenter Knauf <eflash@gmx.net>]
1042 *) Implement certificate status request TLS extension defined in RFC3546.
1043 A client can set the appropriate parameters and receive the encoded
1044 OCSP response via a callback. A server can query the supplied parameters
1045 and set the encoded OCSP response in the callback. Add simplified examples
1046 to s_client and s_server.
1049 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1051 *) Fix various bugs:
1052 + Binary incompatibility of ssl_ctx_st structure
1053 + DTLS interoperation with non-compliant servers
1054 + Don't call get_session_cb() without proposed session
1055 + Fix ia64 assembler code
1056 [Andy Polyakov, Steve Henson]
1058 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1060 *) DTLS Handshake overhaul. There were longstanding issues with
1061 OpenSSL DTLS implementation, which were making it impossible for
1062 RFC 4347 compliant client to communicate with OpenSSL server.
1063 Unfortunately just fixing these incompatibilities would "cut off"
1064 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1065 server keeps tolerating non RFC compliant syntax. The opposite is
1066 not true, 0.9.8f client can not communicate with earlier server.
1067 This update even addresses CVE-2007-4995.
1070 *) Changes to avoid need for function casts in OpenSSL: some compilers
1071 (gcc 4.2 and later) reject their use.
1072 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1075 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1076 RFC4507bis. The encrypted ticket format is an encrypted encoded
1077 SSL_SESSION structure, that way new session features are automatically
1080 If a client application caches session in an SSL_SESSION structure
1081 support is transparent because tickets are now stored in the encoded
1084 The SSL_CTX structure automatically generates keys for ticket
1085 protection in servers so again support should be possible
1086 with no application modification.
1088 If a client or server wishes to disable RFC4507 support then the option
1089 SSL_OP_NO_TICKET can be set.
1091 Add a TLS extension debugging callback to allow the contents of any client
1092 or server extensions to be examined.
1094 This work was sponsored by Google.
1097 *) Add initial support for TLS extensions, specifically for the server_name
1098 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1099 have new members for a host name. The SSL data structure has an
1100 additional member SSL_CTX *initial_ctx so that new sessions can be
1101 stored in that context to allow for session resumption, even after the
1102 SSL has been switched to a new SSL_CTX in reaction to a client's
1103 server_name extension.
1105 New functions (subject to change):
1107 SSL_get_servername()
1108 SSL_get_servername_type()
1111 New CTRL codes and macros (subject to change):
1113 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1114 - SSL_CTX_set_tlsext_servername_callback()
1115 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1116 - SSL_CTX_set_tlsext_servername_arg()
1117 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1119 openssl s_client has a new '-servername ...' option.
1121 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1122 '-key2 ...', '-servername_fatal' (subject to change). This allows
1123 testing the HostName extension for a specific single host name ('-cert'
1124 and '-key' remain fallbacks for handshakes without HostName
1125 negotiation). If the unrecogninzed_name alert has to be sent, this by
1126 default is a warning; it becomes fatal with the '-servername_fatal'
1129 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1131 *) Add AES and SSE2 assembly language support to VC++ build.
1134 *) Mitigate attack on final subtraction in Montgomery reduction.
1137 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1138 (which previously caused an internal error).
1141 *) Squeeze another 10% out of IGE mode when in != out.
1144 *) AES IGE mode speedup.
1145 [Dean Gaudet (Google)]
1147 *) Add the Korean symmetric 128-bit cipher SEED (see
1148 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1149 add SEED ciphersuites from RFC 4162:
1151 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1152 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1153 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1154 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1156 To minimize changes between patchlevels in the OpenSSL 0.9.8
1157 series, SEED remains excluded from compilation unless OpenSSL
1158 is configured with 'enable-seed'.
1159 [KISA, Bodo Moeller]
1161 *) Mitigate branch prediction attacks, which can be practical if a
1162 single processor is shared, allowing a spy process to extract
1163 information. For detailed background information, see
1164 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1165 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1166 and Necessary Software Countermeasures"). The core of the change
1167 are new versions BN_div_no_branch() and
1168 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1169 respectively, which are slower, but avoid the security-relevant
1170 conditional branches. These are automatically called by BN_div()
1171 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1172 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1173 remove a conditional branch.
1175 BN_FLG_CONSTTIME is the new name for the previous
1176 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1177 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1178 in the exponent causes BN_mod_exp_mont() to use the alternative
1179 implementation in BN_mod_exp_mont_consttime().) The old name
1180 remains as a deprecated alias.
1182 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1183 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1184 constant-time implementations for more than just exponentiation.
1185 Here too the old name is kept as a deprecated alias.
1187 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1188 the BN_BLINDING structure gets an independent copy of the
1189 modulus. This means that the previous "BIGNUM *m" argument to
1190 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1191 essentially becomes "const BIGNUM *m", although we can't actually
1192 change this in the header file before 0.9.9. It allows
1193 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1194 enable BN_FLG_CONSTTIME.
1196 [Matthew D Wood (Intel Corp)]
1198 *) In the SSL/TLS server implementation, be strict about session ID
1199 context matching (which matters if an application uses a single
1200 external cache for different purposes). Previously,
1201 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1202 set. This did ensure strict client verification, but meant that,
1203 with applications using a single external cache for quite
1204 different requirements, clients could circumvent ciphersuite
1205 restrictions for a given session ID context by starting a session
1206 in a different context.
1209 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1210 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1211 authentication-only ciphersuites.
1214 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1215 not complete and could lead to a possible single byte overflow
1216 (CVE-2007-5135) [Ben Laurie]
1218 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1220 *) Since AES128 and AES256 (and similarly Camellia128 and
1221 Camellia256) share a single mask bit in the logic of
1222 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1223 kludge to work properly if AES128 is available and AES256 isn't
1224 (or if Camellia128 is available and Camellia256 isn't).
1227 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1228 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1229 When a point or a seed is encoded in a BIT STRING, we need to
1230 prevent the removal of trailing zero bits to get the proper DER
1231 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1232 of a NamedBitList, for which trailing 0 bits need to be removed.)
1235 *) Have SSL/TLS server implementation tolerate "mismatched" record
1236 protocol version while receiving ClientHello even if the
1237 ClientHello is fragmented. (The server can't insist on the
1238 particular protocol version it has chosen before the ServerHello
1239 message has informed the client about his choice.)
1242 *) Add RFC 3779 support.
1243 [Rob Austein for ARIN, Ben Laurie]
1245 *) Load error codes if they are not already present instead of using a
1246 static variable. This allows them to be cleanly unloaded and reloaded.
1247 Improve header file function name parsing.
1250 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1251 or CAPABILITY handshake as required by RFCs.
1254 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1256 *) Introduce limits to prevent malicious keys being able to
1257 cause a denial of service. (CVE-2006-2940)
1258 [Steve Henson, Bodo Moeller]
1260 *) Fix ASN.1 parsing of certain invalid structures that can result
1261 in a denial of service. (CVE-2006-2937) [Steve Henson]
1263 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1264 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1266 *) Fix SSL client code which could crash if connecting to a
1267 malicious SSLv2 server. (CVE-2006-4343)
1268 [Tavis Ormandy and Will Drewry, Google Security Team]
1270 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1271 match only those. Before that, "AES256-SHA" would be interpreted
1272 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1273 the same strength classification in 0.9.7h) as we currently only
1274 have a single AES bit in the ciphersuite description bitmap.
1275 That change, however, also applied to ciphersuite strings such as
1276 "RC4-MD5" that intentionally matched multiple ciphersuites --
1277 namely, SSL 2.0 ciphersuites in addition to the more common ones
1278 from SSL 3.0/TLS 1.0.
1280 So we change the selection algorithm again: Naming an explicit
1281 ciphersuite selects this one ciphersuite, and any other similar
1282 ciphersuite (same bitmap) from *other* protocol versions.
1283 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1284 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1286 Since SSL 2.0 does not have any ciphersuites for which the
1287 128/256 bit distinction would be relevant, this works for now.
1288 The proper fix will be to use different bits for AES128 and
1289 AES256, which would have avoided the problems from the beginning;
1290 however, bits are scarce, so we can only do this in a new release
1291 (not just a patchlevel) when we can change the SSL_CIPHER
1292 definition to split the single 'unsigned long mask' bitmap into
1293 multiple values to extend the available space.
1297 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1299 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1300 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1302 *) Add AES IGE and biIGE modes.
1305 *) Change the Unix randomness entropy gathering to use poll() when
1306 possible instead of select(), since the latter has some
1307 undesirable limitations.
1308 [Darryl Miles via Richard Levitte and Bodo Moeller]
1310 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1311 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1312 cannot be implicitly activated as part of, e.g., the "AES" alias.
1313 However, please upgrade to OpenSSL 0.9.9[-dev] for
1314 non-experimental use of the ECC ciphersuites to get TLS extension
1315 support, which is required for curve and point format negotiation
1316 to avoid potential handshake problems.
1319 *) Disable rogue ciphersuites:
1321 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1322 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1323 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1325 The latter two were purportedly from
1326 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1329 Also deactivate the remaining ciphersuites from
1330 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1331 unofficial, and the ID has long expired.
1334 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1335 dual-core machines) and other potential thread-safety issues.
1338 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1339 versions), which is now available for royalty-free use
1340 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1341 Also, add Camellia TLS ciphersuites from RFC 4132.
1343 To minimize changes between patchlevels in the OpenSSL 0.9.8
1344 series, Camellia remains excluded from compilation unless OpenSSL
1345 is configured with 'enable-camellia'.
1348 *) Disable the padding bug check when compression is in use. The padding
1349 bug check assumes the first packet is of even length, this is not
1350 necessarily true if compresssion is enabled and can result in false
1351 positives causing handshake failure. The actual bug test is ancient
1352 code so it is hoped that implementations will either have fixed it by
1353 now or any which still have the bug do not support compression.
1356 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1358 *) When applying a cipher rule check to see if string match is an explicit
1359 cipher suite and only match that one cipher suite if it is.
1362 *) Link in manifests for VC++ if needed.
1363 [Austin Ziegler <halostatue@gmail.com>]
1365 *) Update support for ECC-based TLS ciphersuites according to
1366 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1367 TLS extensions, which are supported starting with the 0.9.9
1368 branch, not in the OpenSSL 0.9.8 branch).
1371 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1372 opaque EVP_CIPHER_CTX handling.
1375 *) Fixes and enhancements to zlib compression code. We now only use
1376 "zlib1.dll" and use the default __cdecl calling convention on Win32
1377 to conform with the standards mentioned here:
1378 http://www.zlib.net/DLL_FAQ.txt
1379 Static zlib linking now works on Windows and the new --with-zlib-include
1380 --with-zlib-lib options to Configure can be used to supply the location
1381 of the headers and library. Gracefully handle case where zlib library
1385 *) Several fixes and enhancements to the OID generation code. The old code
1386 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1387 handle numbers larger than ULONG_MAX, truncated printing and had a
1388 non standard OBJ_obj2txt() behaviour.
1391 *) Add support for building of engines under engine/ as shared libraries
1392 under VC++ build system.
1395 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1396 Hopefully, we will not see any false combination of paths any more.
1399 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1401 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1402 (part of SSL_OP_ALL). This option used to disable the
1403 countermeasure against man-in-the-middle protocol-version
1404 rollback in the SSL 2.0 server implementation, which is a bad
1405 idea. (CVE-2005-2969)
1407 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1408 for Information Security, National Institute of Advanced Industrial
1409 Science and Technology [AIST], Japan)]
1411 *) Add two function to clear and return the verify parameter flags.
1414 *) Keep cipherlists sorted in the source instead of sorting them at
1415 runtime, thus removing the need for a lock.
1418 *) Avoid some small subgroup attacks in Diffie-Hellman.
1419 [Nick Mathewson and Ben Laurie]
1421 *) Add functions for well-known primes.
1424 *) Extended Windows CE support.
1425 [Satoshi Nakamura and Andy Polyakov]
1427 *) Initialize SSL_METHOD structures at compile time instead of during
1428 runtime, thus removing the need for a lock.
1431 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1432 attempting to decrypt each encrypted key in turn. Add support to
1436 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1438 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1441 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1444 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1445 key into the same file any more.
1448 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1451 *) Add -utf8 command line and config file option to 'ca'.
1452 [Stefan <stf@udoma.org]
1454 *) Removed the macro des_crypt(), as it seems to conflict with some
1455 libraries. Use DES_crypt().
1458 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1459 involves renaming the source and generated shared-libs for
1460 both. The engines will accept the corrected or legacy ids
1461 ('ncipher' and '4758_cca' respectively) when binding. NB,
1462 this only applies when building 'shared'.
1463 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1465 *) Add attribute functions to EVP_PKEY structure. Modify
1466 PKCS12_create() to recognize a CSP name attribute and
1467 use it. Make -CSP option work again in pkcs12 utility.
1470 *) Add new functionality to the bn blinding code:
1471 - automatic re-creation of the BN_BLINDING parameters after
1472 a fixed number of uses (currently 32)
1473 - add new function for parameter creation
1474 - introduce flags to control the update behaviour of the
1475 BN_BLINDING parameters
1476 - hide BN_BLINDING structure
1477 Add a second BN_BLINDING slot to the RSA structure to improve
1478 performance when a single RSA object is shared among several
1482 *) Add support for DTLS.
1483 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1485 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1486 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1489 *) Remove buggy and incompletet DH cert support from
1490 ssl/ssl_rsa.c and ssl/s3_both.c
1493 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1494 the apps/openssl applications.
1497 *) Compile clean with "-Wall -Wmissing-prototypes
1498 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1499 DEBUG_SAFESTACK must also be set.
1502 *) Change ./Configure so that certain algorithms can be disabled by default.
1503 The new counterpiece to "no-xxx" is "enable-xxx".
1505 The patented RC5 and MDC2 algorithms will now be disabled unless
1506 "enable-rc5" and "enable-mdc2", respectively, are specified.
1508 (IDEA remains enabled despite being patented. This is because IDEA
1509 is frequently required for interoperability, and there is no license
1510 fee for non-commercial use. As before, "no-idea" can be used to
1511 avoid this algorithm.)
1515 *) Add processing of proxy certificates (see RFC 3820). This work was
1516 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1517 EGEE (Enabling Grids for E-science in Europe).
1520 *) RC4 performance overhaul on modern architectures/implementations, such
1521 as Intel P4, IA-64 and AMD64.
1524 *) New utility extract-section.pl. This can be used specify an alternative
1525 section number in a pod file instead of having to treat each file as
1526 a separate case in Makefile. This can be done by adding two lines to the
1529 =for comment openssl_section:XXX
1531 The blank line is mandatory.
1535 *) New arguments -certform, -keyform and -pass for s_client and s_server
1536 to allow alternative format key and certificate files and passphrase
1540 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1541 update associated structures and add various utility functions.
1543 Add new policy related verify parameters, include policy checking in
1544 standard verify code. Enhance 'smime' application with extra parameters
1545 to support policy checking and print out.
1548 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1549 Nehemiah processors. These extensions support AES encryption in hardware
1550 as well as RNG (though RNG support is currently disabled).
1551 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1553 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1556 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1557 [Andy Polyakov and a number of other people]
1559 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1560 implementation contributed by IBM.
1561 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1563 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1564 exponent rather than 'unsigned long'. There is a corresponding change to
1565 the new 'rsa_keygen' element of the RSA_METHOD structure.
1566 [Jelte Jansen, Geoff Thorpe]
1568 *) Functionality for creating the initial serial number file is now
1569 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1571 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1572 number file to 1, which is bound to cause problems. To avoid
1573 the problems while respecting compatibility between different 0.9.7
1574 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1575 CA.pl for serial number initialization. With the new release 0.9.8,
1576 we can fix the problem directly in the 'ca' utility.)
1579 *) Reduced header interdepencies by declaring more opaque objects in
1580 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1581 give fewer recursive includes, which could break lazy source code - so
1582 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1583 developers should define this symbol when building and using openssl to
1584 ensure they track the recommended behaviour, interfaces, [etc], but
1585 backwards-compatible behaviour prevails when this isn't defined.
1588 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1591 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1592 This will generate a random key of the appropriate length based on the
1593 cipher context. The EVP_CIPHER can provide its own random key generation
1594 routine to support keys of a specific form. This is used in the des and
1595 3des routines to generate a key of the correct parity. Update S/MIME
1596 code to use new functions and hence generate correct parity DES keys.
1597 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1598 valid (weak or incorrect parity).
1601 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1602 as looking them up. This is useful when the verified structure may contain
1603 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1604 present unless the new PKCS7_NO_CRL flag is asserted.
1607 *) Extend ASN1 oid configuration module. It now additionally accepts the
1610 shortName = some long name, 1.2.3.4
1613 *) Reimplemented the BN_CTX implementation. There is now no more static
1614 limitation on the number of variables it can handle nor the depth of the
1615 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1616 information can now expand as required, and rather than having a single
1617 static array of bignums, BN_CTX now uses a linked-list of such arrays
1618 allowing it to expand on demand whilst maintaining the usefulness of
1619 BN_CTX's "bundling".
1622 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1623 to allow all RSA operations to function using a single BN_CTX.
1626 *) Preliminary support for certificate policy evaluation and checking. This
1627 is initially intended to pass the tests outlined in "Conformance Testing
1628 of Relying Party Client Certificate Path Processing Logic" v1.07.
1631 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1632 remained unused and not that useful. A variety of other little bignum
1633 tweaks and fixes have also been made continuing on from the audit (see
1637 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1638 associated ASN1, EVP and SSL functions and old ASN1 macros.
1641 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1642 and this should never fail. So the return value from the use of
1643 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1644 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1647 *) BN_CTX_get() should return zero-valued bignums, providing the same
1648 initialised value as BN_new().
1649 [Geoff Thorpe, suggested by Ulf Möller]
1651 *) Support for inhibitAnyPolicy certificate extension.
1654 *) An audit of the BIGNUM code is underway, for which debugging code is
1655 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1656 is considered valid when processing BIGNUMs, and causes execution to
1657 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1658 further steps are taken to deliberately pollute unused data in BIGNUM
1659 structures to try and expose faulty code further on. For now, openssl will
1660 (in its default mode of operation) continue to tolerate the inconsistent
1661 forms that it has tolerated in the past, but authors and packagers should
1662 consider trying openssl and their own applications when compiled with
1663 these debugging symbols defined. It will help highlight potential bugs in
1664 their own code, and will improve the test coverage for OpenSSL itself. At
1665 some point, these tighter rules will become openssl's default to improve
1666 maintainability, though the assert()s and other overheads will remain only
1667 in debugging configurations. See bn.h for more details.
1668 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1670 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1671 that can only be obtained through BN_CTX_new() (which implicitly
1672 initialises it). The presence of this function only made it possible
1673 to overwrite an existing structure (and cause memory leaks).
1676 *) Because of the callback-based approach for implementing LHASH as a
1677 template type, lh_insert() adds opaque objects to hash-tables and
1678 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1679 to clean up those corresponding objects before destroying the hash table
1680 (and losing the object pointers). So some over-zealous constifications in
1681 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1682 objects as "const" and the lh_doall[_arg] callback wrappers are not
1683 prototyped to have "const" restrictions on the object pointers they are
1684 given (and so aren't required to cast them away any more).
1687 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1688 (speed) prefers to use its own implementation. The two implementations
1689 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1690 its object type properly exposed (MS_TM) instead of casting to/from "char
1691 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1692 aren't necessarily the greatest nomenclatures - but this is what was used
1693 internally to the implementation so I've used that for now.
1696 *) Ensure that deprecated functions do not get compiled when
1697 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1698 the self-tests were still using deprecated key-generation functions so
1699 these have been updated also.
1702 *) Reorganise PKCS#7 code to separate the digest location functionality
1703 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1704 New function PKCS7_set_digest() to set the digest type for PKCS#7
1705 digestedData type. Add additional code to correctly generate the
1706 digestedData type and add support for this type in PKCS7 initialization
1710 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1711 structure of type "other".
1714 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1715 sure the loop does correctly stop and breaking ("division by zero")
1716 modulus operations are not performed. The (pre-generated) prime
1717 table crypto/bn/bn_prime.h was already correct, but it could not be
1718 re-generated on some platforms because of the "division by zero"
1719 situation in the script.
1720 [Ralf S. Engelschall]
1722 *) Update support for ECC-based TLS ciphersuites according to
1723 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1724 SHA-1 now is only used for "small" curves (where the
1725 representation of a field element takes up to 24 bytes); for
1726 larger curves, the field element resulting from ECDH is directly
1727 used as premaster secret.
1728 [Douglas Stebila (Sun Microsystems Laboratories)]
1730 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1731 curve secp160r1 to the tests.
1732 [Douglas Stebila (Sun Microsystems Laboratories)]
1734 *) Add the possibility to load symbols globally with DSO.
1735 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1737 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1738 control of the error stack.
1741 *) Add support for STORE in ENGINE.
1744 *) Add the STORE type. The intention is to provide a common interface
1745 to certificate and key stores, be they simple file-based stores, or
1746 HSM-type store, or LDAP stores, or...
1747 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1750 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1751 pass a list of arguments to any function as well as provide a way
1752 for a function to pass data back to the caller.
1755 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1756 works like BUF_strdup() but can be used to duplicate a portion of
1757 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1761 *) Add the function sk_find_ex() which works like sk_find(), but will
1762 return an index to an element even if an exact match couldn't be
1763 found. The index is guaranteed to point at the element where the
1764 searched-for key would be inserted to preserve sorting order.
1767 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1768 takes an extra flags argument for optional functionality. Currently,
1769 the following flags are defined:
1771 OBJ_BSEARCH_VALUE_ON_NOMATCH
1772 This one gets OBJ_bsearch_ex() to return a pointer to the first
1773 element where the comparing function returns a negative or zero
1776 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1777 This one gets OBJ_bsearch_ex() to return a pointer to the first
1778 element where the comparing function returns zero. This is useful
1779 if there are more than one element where the comparing function
1783 *) Make it possible to create self-signed certificates with 'openssl ca'
1784 in such a way that the self-signed certificate becomes part of the
1785 CA database and uses the same mechanisms for serial number generation
1786 as all other certificate signing. The new flag '-selfsign' enables
1787 this functionality. Adapt CA.sh and CA.pl.in.
1790 *) Add functionality to check the public key of a certificate request
1791 against a given private. This is useful to check that a certificate
1792 request can be signed by that key (self-signing).
1795 *) Make it possible to have multiple active certificates with the same
1796 subject in the CA index file. This is done only if the keyword
1797 'unique_subject' is set to 'no' in the main CA section (default
1798 if 'CA_default') of the configuration file. The value is saved
1799 with the database itself in a separate index attribute file,
1800 named like the index file with '.attr' appended to the name.
1803 *) Generate muti valued AVAs using '+' notation in config files for
1807 *) Support for nameConstraints certificate extension.
1810 *) Support for policyConstraints certificate extension.
1813 *) Support for policyMappings certificate extension.
1816 *) Make sure the default DSA_METHOD implementation only uses its
1817 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1818 and change its own handlers to be NULL so as to remove unnecessary
1819 indirection. This lets alternative implementations fallback to the
1820 default implementation more easily.
1823 *) Support for directoryName in GeneralName related extensions
1827 *) Make it possible to link applications using Makefile.shared.
1828 Make that possible even when linking against static libraries!
1831 *) Support for single pass processing for S/MIME signing. This now
1832 means that S/MIME signing can be done from a pipe, in addition
1833 cleartext signing (multipart/signed type) is effectively streaming
1834 and the signed data does not need to be all held in memory.
1836 This is done with a new flag PKCS7_STREAM. When this flag is set
1837 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1838 is done after the data is output (and digests calculated) in
1839 SMIME_write_PKCS7().
1842 *) Add full support for -rpath/-R, both in shared libraries and
1843 applications, at least on the platforms where it's known how
1847 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1848 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1849 will now compute a table of multiples of the generator that
1850 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1851 faster (notably in the case of a single point multiplication,
1852 scalar * generator).
1853 [Nils Larsch, Bodo Moeller]
1855 *) IPv6 support for certificate extensions. The various extensions
1856 which use the IP:a.b.c.d can now take IPv6 addresses using the
1857 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1861 *) Added an ENGINE that implements RSA by performing private key
1862 exponentiations with the GMP library. The conversions to and from
1863 GMP's mpz_t format aren't optimised nor are any montgomery forms
1864 cached, and on x86 it appears OpenSSL's own performance has caught up.
1865 However there are likely to be other architectures where GMP could
1866 provide a boost. This ENGINE is not built in by default, but it can be
1867 specified at Configure time and should be accompanied by the necessary
1868 linker additions, eg;
1869 ./config -DOPENSSL_USE_GMP -lgmp
1872 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1873 testing availability of engines with "-t" - the old behaviour is
1874 produced by increasing the feature's verbosity with "-tt".
1877 *) ECDSA routines: under certain error conditions uninitialized BN objects
1878 could be freed. Solution: make sure initialization is performed early
1879 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1883 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1884 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1885 software implementations. For DSA and DH, parameter generation can
1886 also be overriden by providing the appropriate method callbacks.
1889 *) Change the "progress" mechanism used in key-generation and
1890 primality testing to functions that take a new BN_GENCB pointer in
1891 place of callback/argument pairs. The new API functions have "_ex"
1892 postfixes and the older functions are reimplemented as wrappers for
1893 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1894 declarations of the old functions to help (graceful) attempts to
1895 migrate to the new functions. Also, the new key-generation API
1896 functions operate on a caller-supplied key-structure and return
1897 success/failure rather than returning a key or NULL - this is to
1898 help make "keygen" another member function of RSA_METHOD etc.
1900 Example for using the new callback interface:
1902 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1906 BN_GENCB_set(&my_cb, my_callback, my_arg);
1908 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1909 /* For the meaning of a, b in calls to my_callback(), see the
1910 * documentation of the function that calls the callback.
1911 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1912 * my_callback should return 1 if it wants BN_is_prime_ex()
1913 * to continue, or 0 to stop.
1918 *) Change the ZLIB compression method to be stateful, and make it
1919 available to TLS with the number defined in
1920 draft-ietf-tls-compression-04.txt.
1923 *) Add the ASN.1 structures and functions for CertificatePair, which
1924 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1926 CertificatePair ::= SEQUENCE {
1927 forward [0] Certificate OPTIONAL,
1928 reverse [1] Certificate OPTIONAL,
1929 -- at least one of the pair shall be present -- }
1931 Also implement the PEM functions to read and write certificate
1932 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1934 This needed to be defined, mostly for the sake of the LDAP
1935 attribute crossCertificatePair, but may prove useful elsewhere as
1939 *) Make it possible to inhibit symlinking of shared libraries in
1940 Makefile.shared, for Cygwin's sake.
1943 *) Extend the BIGNUM API by creating a function
1944 void BN_set_negative(BIGNUM *a, int neg);
1945 and a macro that behave like
1946 int BN_is_negative(const BIGNUM *a);
1948 to avoid the need to access 'a->neg' directly in applications.
1951 *) Implement fast modular reduction for pseudo-Mersenne primes
1952 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1953 EC_GROUP_new_curve_GFp() will now automatically use this
1955 [Nils Larsch <nla@trustcenter.de>]
1957 *) Add new lock type (CRYPTO_LOCK_BN).
1960 *) Change the ENGINE framework to automatically load engines
1961 dynamically from specific directories unless they could be
1962 found to already be built in or loaded. Move all the
1963 current engines except for the cryptodev one to a new
1965 The engines in engines/ are built as shared libraries if
1966 the "shared" options was given to ./Configure or ./config.
1967 Otherwise, they are inserted in libcrypto.a.
1968 /usr/local/ssl/engines is the default directory for dynamic
1969 engines, but that can be overriden at configure time through
1970 the usual use of --prefix and/or --openssldir, and at run
1971 time with the environment variable OPENSSL_ENGINES.
1972 [Geoff Thorpe and Richard Levitte]
1974 *) Add Makefile.shared, a helper makefile to build shared
1975 libraries. Addapt Makefile.org.
1978 *) Add version info to Win32 DLLs.
1979 [Peter 'Luna' Runestig" <peter@runestig.com>]
1981 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1982 can be added using this API to created arbitrary PKCS#12
1983 files while avoiding the low level API.
1985 New options to PKCS12_create(), key or cert can be NULL and
1986 will then be omitted from the output file. The encryption
1987 algorithm NIDs can be set to -1 for no encryption, the mac
1988 iteration count can be set to 0 to omit the mac.
1990 Enhance pkcs12 utility by making the -nokeys and -nocerts
1991 options work when creating a PKCS#12 file. New option -nomac
1992 to omit the mac, NONE can be set for an encryption algorithm.
1993 New code is modified to use the enhanced PKCS12_create()
1994 instead of the low level API.
1997 *) Extend ASN1 encoder to support indefinite length constructed
1998 encoding. This can output sequences tags and octet strings in
1999 this form. Modify pk7_asn1.c to support indefinite length
2000 encoding. This is experimental and needs additional code to
2001 be useful, such as an ASN1 bio and some enhanced streaming
2004 Extend template encode functionality so that tagging is passed
2005 down to the template encoder.
2008 *) Let 'openssl req' fail if an argument to '-newkey' is not
2009 recognized instead of using RSA as a default.
2012 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2013 As these are not official, they are not included in "ALL";
2014 the "ECCdraft" ciphersuite group alias can be used to select them.
2015 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2017 *) Add ECDH engine support.
2018 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2020 *) Add ECDH in new directory crypto/ecdh/.
2021 [Douglas Stebila (Sun Microsystems Laboratories)]
2023 *) Let BN_rand_range() abort with an error after 100 iterations
2024 without success (which indicates a broken PRNG).
2027 *) Change BN_mod_sqrt() so that it verifies that the input value
2028 is really the square of the return value. (Previously,
2029 BN_mod_sqrt would show GIGO behaviour.)
2032 *) Add named elliptic curves over binary fields from X9.62, SECG,
2033 and WAP/WTLS; add OIDs that were still missing.
2035 [Sheueling Chang Shantz and Douglas Stebila
2036 (Sun Microsystems Laboratories)]
2038 *) Extend the EC library for elliptic curves over binary fields
2039 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2042 EC_GF2m_simple_method
2046 EC_GROUP_new_curve_GF2m
2047 EC_GROUP_set_curve_GF2m
2048 EC_GROUP_get_curve_GF2m
2049 EC_POINT_set_affine_coordinates_GF2m
2050 EC_POINT_get_affine_coordinates_GF2m
2051 EC_POINT_set_compressed_coordinates_GF2m
2053 Point compression for binary fields is disabled by default for
2054 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2057 As binary polynomials are represented as BIGNUMs, various members
2058 of the EC_GROUP and EC_POINT data structures can be shared
2059 between the implementations for prime fields and binary fields;
2060 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2061 are essentially identical to their ..._GFp counterparts.
2062 (For simplicity, the '..._GFp' prefix has been dropped from
2063 various internal method names.)
2065 An internal 'field_div' method (similar to 'field_mul' and
2066 'field_sqr') has been added; this is used only for binary fields.
2068 [Sheueling Chang Shantz and Douglas Stebila
2069 (Sun Microsystems Laboratories)]
2071 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2072 through methods ('mul', 'precompute_mult').
2074 The generic implementations (now internally called 'ec_wNAF_mul'
2075 and 'ec_wNAF_precomputed_mult') remain the default if these
2076 methods are undefined.
2078 [Sheueling Chang Shantz and Douglas Stebila
2079 (Sun Microsystems Laboratories)]
2081 *) New function EC_GROUP_get_degree, which is defined through
2082 EC_METHOD. For curves over prime fields, this returns the bit
2083 length of the modulus.
2085 [Sheueling Chang Shantz and Douglas Stebila
2086 (Sun Microsystems Laboratories)]
2088 *) New functions EC_GROUP_dup, EC_POINT_dup.
2089 (These simply call ..._new and ..._copy).
2091 [Sheueling Chang Shantz and Douglas Stebila
2092 (Sun Microsystems Laboratories)]
2094 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2095 Polynomials are represented as BIGNUMs (where the sign bit is not
2096 used) in the following functions [macros]:
2099 BN_GF2m_sub [= BN_GF2m_add]
2100 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2101 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2102 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2104 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2105 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2106 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2107 BN_GF2m_cmp [= BN_ucmp]
2109 (Note that only the 'mod' functions are actually for fields GF(2^m).
2110 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2112 For some functions, an the irreducible polynomial defining a
2113 field can be given as an 'unsigned int[]' with strictly
2114 decreasing elements giving the indices of those bits that are set;
2115 i.e., p[] represents the polynomial
2116 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2118 p[0] > p[1] > ... > p[k] = 0.
2119 This applies to the following functions:
2124 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2125 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2127 BN_GF2m_mod_sqrt_arr
2128 BN_GF2m_mod_solve_quad_arr
2132 Conversion can be performed by the following functions:
2137 bntest.c has additional tests for binary polynomial arithmetic.
2139 Two implementations for BN_GF2m_mod_div() are available.
2140 The default algorithm simply uses BN_GF2m_mod_inv() and
2141 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2142 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2143 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2145 [Sheueling Chang Shantz and Douglas Stebila
2146 (Sun Microsystems Laboratories)]
2148 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2149 functionality is disabled at compile-time.
2150 [Douglas Stebila <douglas.stebila@sun.com>]
2152 *) Change default behaviour of 'openssl asn1parse' so that more
2153 information is visible when viewing, e.g., a certificate:
2155 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2156 mode the content of non-printable OCTET STRINGs is output in a
2157 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2158 avoid the appearance of a printable string.
2159 [Nils Larsch <nla@trustcenter.de>]
2161 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2163 EC_GROUP_set_asn1_flag()
2164 EC_GROUP_get_asn1_flag()
2165 EC_GROUP_set_point_conversion_form()
2166 EC_GROUP_get_point_conversion_form()
2167 These control ASN1 encoding details:
2168 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2169 has been set to OPENSSL_EC_NAMED_CURVE.
2170 - Points are encoded in uncompressed form by default; options for
2171 asn1_for are as for point2oct, namely
2172 POINT_CONVERSION_COMPRESSED
2173 POINT_CONVERSION_UNCOMPRESSED
2174 POINT_CONVERSION_HYBRID
2176 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2179 EC_GROUP_get0_seed()
2180 EC_GROUP_get_seed_len()
2181 This is used only for ASN1 purposes (so far).
2182 [Nils Larsch <nla@trustcenter.de>]
2184 *) Add 'field_type' member to EC_METHOD, which holds the NID
2185 of the appropriate field type OID. The new function
2186 EC_METHOD_get_field_type() returns this value.
2187 [Nils Larsch <nla@trustcenter.de>]
2192 EC_POINT_point2hex()
2193 EC_POINT_hex2point()
2194 providing useful interfaces to EC_POINT_point2oct() and
2195 EC_POINT_oct2point().
2196 [Nils Larsch <nla@trustcenter.de>]
2198 *) Change internals of the EC library so that the functions
2199 EC_GROUP_set_generator()
2200 EC_GROUP_get_generator()
2201 EC_GROUP_get_order()
2202 EC_GROUP_get_cofactor()
2203 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2204 to methods, which would lead to unnecessary code duplication when
2205 adding different types of curves.
2206 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2208 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2209 arithmetic, and such that modified wNAFs are generated
2210 (which avoid length expansion in many cases).
2213 *) Add a function EC_GROUP_check_discriminant() (defined via
2214 EC_METHOD) that verifies that the curve discriminant is non-zero.
2216 Add a function EC_GROUP_check() that makes some sanity tests
2217 on a EC_GROUP, its generator and order. This includes
2218 EC_GROUP_check_discriminant().
2219 [Nils Larsch <nla@trustcenter.de>]
2221 *) Add ECDSA in new directory crypto/ecdsa/.
2223 Add applications 'openssl ecparam' and 'openssl ecdsa'
2224 (these are based on 'openssl dsaparam' and 'openssl dsa').
2226 ECDSA support is also included in various other files across the
2227 library. Most notably,
2228 - 'openssl req' now has a '-newkey ecdsa:file' option;
2229 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2230 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2231 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2232 them suitable for ECDSA where domain parameters must be
2233 extracted before the specific public key;
2234 - ECDSA engine support has been added.
2235 [Nils Larsch <nla@trustcenter.de>]
2237 *) Include some named elliptic curves, and add OIDs from X9.62,
2238 SECG, and WAP/WTLS. Each curve can be obtained from the new
2240 EC_GROUP_new_by_curve_name(),
2241 and the list of available named curves can be obtained with
2242 EC_get_builtin_curves().
2243 Also add a 'curve_name' member to EC_GROUP objects, which can be
2245 EC_GROUP_set_curve_name()
2246 EC_GROUP_get_curve_name()
2247 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2249 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2250 was actually never needed) and in BN_mul(). The removal in BN_mul()
2251 required a small change in bn_mul_part_recursive() and the addition
2252 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2253 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2254 bn_sub_words() and bn_add_words() except they take arrays with
2258 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
2260 *) In the SSL/TLS server implementation, be strict about session ID
2261 context matching (which matters if an application uses a single
2262 external cache for different purposes). Previously,
2263 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2264 set. This did ensure strict client verification, but meant that,
2265 with applications using a single external cache for quite
2266 different requirements, clients could circumvent ciphersuite
2267 restrictions for a given session ID context by starting a session
2268 in a different context.
2271 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2273 *) Cleanse PEM buffers before freeing them since they may contain
2275 [Benjamin Bennett <ben@psc.edu>]
2277 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2278 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2279 authentication-only ciphersuites.
2282 *) Since AES128 and AES256 share a single mask bit in the logic of
2283 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2284 kludge to work properly if AES128 is available and AES256 isn't.
2287 *) Expand security boundary to match 1.1.1 module.
2290 *) Remove redundant features: hash file source, editing of test vectors
2291 modify fipsld to use external fips_premain.c signature.
2294 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2295 run algorithm test programs.
2298 *) Make algorithm test programs more tolerant of whitespace.
2301 *) Have SSL/TLS server implementation tolerate "mismatched" record
2302 protocol version while receiving ClientHello even if the
2303 ClientHello is fragmented. (The server can't insist on the
2304 particular protocol version it has chosen before the ServerHello
2305 message has informed the client about his choice.)
2308 *) Load error codes if they are not already present instead of using a
2309 static variable. This allows them to be cleanly unloaded and reloaded.
2312 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2314 *) Introduce limits to prevent malicious keys being able to
2315 cause a denial of service. (CVE-2006-2940)
2316 [Steve Henson, Bodo Moeller]
2318 *) Fix ASN.1 parsing of certain invalid structures that can result
2319 in a denial of service. (CVE-2006-2937) [Steve Henson]
2321 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2322 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2324 *) Fix SSL client code which could crash if connecting to a
2325 malicious SSLv2 server. (CVE-2006-4343)
2326 [Tavis Ormandy and Will Drewry, Google Security Team]
2328 *) Change ciphersuite string processing so that an explicit
2329 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2330 will no longer include "AES128-SHA"), and any other similar
2331 ciphersuite (same bitmap) from *other* protocol versions (so that
2332 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2333 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2334 changes from 0.9.8b and 0.9.8d.
2337 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2339 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2340 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2342 *) Change the Unix randomness entropy gathering to use poll() when
2343 possible instead of select(), since the latter has some
2344 undesirable limitations.
2345 [Darryl Miles via Richard Levitte and Bodo Moeller]
2347 *) Disable rogue ciphersuites:
2349 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2350 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2351 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2353 The latter two were purportedly from
2354 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2357 Also deactive the remaining ciphersuites from
2358 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2359 unofficial, and the ID has long expired.
2362 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2363 dual-core machines) and other potential thread-safety issues.
2366 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2368 *) Adapt fipsld and the build system to link against the validated FIPS
2369 module in FIPS mode.
2372 *) Fixes for VC++ 2005 build under Windows.
2375 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2376 from a Windows bash shell such as MSYS. It is autodetected from the
2377 "config" script when run from a VC++ environment. Modify standard VC++
2378 build to use fipscanister.o from the GNU make build.
2381 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2383 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2384 The value now differs depending on if you build for FIPS or not.
2385 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2386 safely run with a non-FIPSed libcrypto, as it may crash because of
2387 the difference induced by this change.
2390 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2392 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2393 (part of SSL_OP_ALL). This option used to disable the
2394 countermeasure against man-in-the-middle protocol-version
2395 rollback in the SSL 2.0 server implementation, which is a bad
2396 idea. (CVE-2005-2969)
2398 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2399 for Information Security, National Institute of Advanced Industrial
2400 Science and Technology [AIST], Japan)]
2402 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2403 mainly for FIPS compliance and not fully integrated at this stage.
2406 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2407 the exponentiation using a fixed-length exponent. (Otherwise,
2408 the information leaked through timing could expose the secret key
2409 after many signatures; cf. Bleichenbacher's attack on DSA with
2413 *) Make a new fixed-window mod_exp implementation the default for
2414 RSA, DSA, and DH private-key operations so that the sequence of
2415 squares and multiplies and the memory access pattern are
2416 independent of the particular secret key. This will mitigate
2417 cache-timing and potential related attacks.
2419 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2420 and this is automatically used by BN_mod_exp_mont() if the new flag
2421 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2422 will use this BN flag for private exponents unless the flag
2423 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2424 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2426 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2428 *) Change the client implementation for SSLv23_method() and
2429 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2430 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2431 (Previously, the SSL 2.0 backwards compatible Client Hello
2432 message format would be used even with SSL_OP_NO_SSLv2.)
2435 *) Add support for smime-type MIME parameter in S/MIME messages which some
2439 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2440 a threadsafe manner. Modify rsa code to use new function and add calls
2441 to dsa and dh code (which had race conditions before).
2444 *) Include the fixed error library code in the C error file definitions
2445 instead of fixing them up at runtime. This keeps the error code
2446 structures constant.
2449 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2451 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2454 *) Fixes for newer kerberos headers. NB: the casts are needed because
2455 the 'length' field is signed on one version and unsigned on another
2456 with no (?) obvious way to tell the difference, without these VC++
2457 complains. Also the "definition" of FAR (blank) is no longer included
2458 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2459 some needed definitions.
2462 *) Undo Cygwin change.
2465 *) Added support for proxy certificates according to RFC 3820.
2466 Because they may be a security thread to unaware applications,
2467 they must be explicitely allowed in run-time. See
2468 docs/HOWTO/proxy_certificates.txt for further information.
2471 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2473 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2474 server and client random values. Previously
2475 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2476 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2478 This change has negligible security impact because:
2480 1. Server and client random values still have 24 bytes of pseudo random
2483 2. Server and client random values are sent in the clear in the initial
2486 3. The master secret is derived using the premaster secret (48 bytes in
2487 size for static RSA ciphersuites) as well as client server and random
2490 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2493 [Stephen Henson, reported by UK NISCC]
2495 *) Use Windows randomness collection on Cygwin.
2498 *) Fix hang in EGD/PRNGD query when communication socket is closed
2499 prematurely by EGD/PRNGD.
2500 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2502 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2505 *) Back-port of selected performance improvements from development
2506 branch, as well as improved support for PowerPC platforms.
2509 *) Add lots of checks for memory allocation failure, error codes to indicate
2510 failure and freeing up memory if a failure occurs.
2511 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2513 *) Add new -passin argument to dgst.
2516 *) Perform some character comparisons of different types in X509_NAME_cmp:
2517 this is needed for some certificates that reencode DNs into UTF8Strings
2518 (in violation of RFC3280) and can't or wont issue name rollover
2522 *) Make an explicit check during certificate validation to see that
2523 the CA setting in each certificate on the chain is correct. As a
2524 side effect always do the following basic checks on extensions,
2525 not just when there's an associated purpose to the check:
2527 - if there is an unhandled critical extension (unless the user
2528 has chosen to ignore this fault)
2529 - if the path length has been exceeded (if one is set at all)
2530 - that certain extensions fit the associated purpose (if one has
2534 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2536 *) Avoid a race condition when CRLs are checked in a multi threaded
2537 environment. This would happen due to the reordering of the revoked
2538 entries during signature checking and serial number lookup. Now the
2539 encoding is cached and the serial number sort performed under a lock.
2540 Add new STACK function sk_is_sorted().
2543 *) Add Delta CRL to the extension code.
2546 *) Various fixes to s3_pkt.c so alerts are sent properly.
2547 [David Holmes <d.holmes@f5.com>]
2549 *) Reduce the chances of duplicate issuer name and serial numbers (in
2550 violation of RFC3280) using the OpenSSL certificate creation utilities.
2551 This is done by creating a random 64 bit value for the initial serial
2552 number when a serial number file is created or when a self signed
2553 certificate is created using 'openssl req -x509'. The initial serial
2554 number file is created using 'openssl x509 -next_serial' in CA.pl
2555 rather than being initialized to 1.
2558 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2560 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2561 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2562 [Joe Orton, Steve Henson]
2564 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2566 [Joe Orton, Steve Henson]
2568 *) Make it possible to have multiple active certificates with the same
2569 subject in the CA index file. This is done only if the keyword
2570 'unique_subject' is set to 'no' in the main CA section (default
2571 if 'CA_default') of the configuration file. The value is saved
2572 with the database itself in a separate index attribute file,
2573 named like the index file with '.attr' appended to the name.
2576 *) X509 verify fixes. Disable broken certificate workarounds when
2577 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2578 keyUsage extension present. Don't accept CRLs with unhandled critical
2579 extensions: since verify currently doesn't process CRL extensions this
2580 rejects a CRL with *any* critical extensions. Add new verify error codes
2584 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2585 A clarification of RFC2560 will require the use of OCTET STRINGs and
2586 some implementations cannot handle the current raw format. Since OpenSSL
2587 copies and compares OCSP nonces as opaque blobs without any attempt at
2588 parsing them this should not create any compatibility issues.
2591 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2592 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2593 this HMAC (and other) operations are several times slower than OpenSSL
2597 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2598 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2600 *) Use the correct content when signing type "other".
2603 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2605 *) Fix various bugs revealed by running the NISCC test suite:
2607 Stop out of bounds reads in the ASN1 code when presented with
2608 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2610 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2612 If verify callback ignores invalid public key errors don't try to check
2613 certificate signature with the NULL public key.
2617 *) New -ignore_err option in ocsp application to stop the server
2618 exiting on the first error in a request.
2621 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2622 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2626 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2627 extra data after the compression methods not only for TLS 1.0
2628 but also for SSL 3.0 (as required by the specification).
2629 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2631 *) Change X509_certificate_type() to mark the key as exported/exportable
2632 when it's 512 *bits* long, not 512 bytes.
2635 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2636 blocks during encryption.
2639 *) Various fixes to base64 BIO and non blocking I/O. On write
2640 flushes were not handled properly if the BIO retried. On read
2641 data was not being buffered properly and had various logic bugs.
2642 This also affects blocking I/O when the data being decoded is a
2646 *) Various S/MIME bugfixes and compatibility changes:
2647 output correct application/pkcs7 MIME type if
2648 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2649 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2650 of files as .eml work). Correctly handle very long lines in MIME
2654 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2656 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2657 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2658 a protocol version number mismatch like a decryption error
2659 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2662 *) Turn on RSA blinding by default in the default implementation
2663 to avoid a timing attack. Applications that don't want it can call
2664 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2665 They would be ill-advised to do so in most cases.
2666 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2668 *) Change RSA blinding code so that it works when the PRNG is not
2669 seeded (in this case, the secret RSA exponent is abused as
2670 an unpredictable seed -- if it is not unpredictable, there
2671 is no point in blinding anyway). Make RSA blinding thread-safe
2672 by remembering the creator's thread ID in rsa->blinding and
2673 having all other threads use local one-time blinding factors
2674 (this requires more computation than sharing rsa->blinding, but
2675 avoids excessive locking; and if an RSA object is not shared
2676 between threads, blinding will still be very fast).
2679 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2680 ENGINE as defaults for all supported algorithms irrespective of
2681 the 'flags' parameter. 'flags' is now honoured, so applications
2682 should make sure they are passing it correctly.
2685 *) Target "mingw" now allows native Windows code to be generated in
2686 the Cygwin environment as well as with the MinGW compiler.
2689 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2691 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2692 via timing by performing a MAC computation even if incorrrect
2693 block cipher padding has been found. This is a countermeasure
2694 against active attacks where the attacker has to distinguish
2695 between bad padding and a MAC verification error. (CVE-2003-0078)
2697 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2698 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2699 Martin Vuagnoux (EPFL, Ilion)]
2701 *) Make the no-err option work as intended. The intention with no-err
2702 is not to have the whole error stack handling routines removed from
2703 libcrypto, it's only intended to remove all the function name and
2704 reason texts, thereby removing some of the footprint that may not
2705 be interesting if those errors aren't displayed anyway.
2707 NOTE: it's still possible for any application or module to have it's
2708 own set of error texts inserted. The routines are there, just not
2709 used by default when no-err is given.
2712 *) Add support for FreeBSD on IA64.
2713 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2715 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2716 Kerberos function mit_des_cbc_cksum(). Before this change,
2717 the value returned by DES_cbc_cksum() was like the one from
2718 mit_des_cbc_cksum(), except the bytes were swapped.
2719 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2721 *) Allow an application to disable the automatic SSL chain building.
2722 Before this a rather primitive chain build was always performed in
2723 ssl3_output_cert_chain(): an application had no way to send the
2724 correct chain if the automatic operation produced an incorrect result.
2726 Now the chain builder is disabled if either:
2728 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2730 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2732 The reasoning behind this is that an application would not want the
2733 auto chain building to take place if extra chain certificates are
2734 present and it might also want a means of sending no additional
2735 certificates (for example the chain has two certificates and the
2739 *) Add the possibility to build without the ENGINE framework.
2740 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2742 *) Under Win32 gmtime() can return NULL: check return value in
2743 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2746 *) DSA routines: under certain error conditions uninitialized BN objects
2747 could be freed. Solution: make sure initialization is performed early
2748 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2749 Nils Larsch <nla@trustcenter.de> via PR#459)
2752 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2753 checked on reconnect on the client side, therefore session resumption
2754 could still fail with a "ssl session id is different" error. This
2755 behaviour is masked when SSL_OP_ALL is used due to
2756 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2757 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2758 followup to PR #377.
2761 *) IA-32 assembler support enhancements: unified ELF targets, support
2762 for SCO/Caldera platforms, fix for Cygwin shared build.
2765 *) Add support for FreeBSD on sparc64. As a consequence, support for
2766 FreeBSD on non-x86 processors is separate from x86 processors on
2767 the config script, much like the NetBSD support.
2768 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2770 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2772 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2775 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2776 code (06) was taken as the first octet of the session ID and the last
2777 octet was ignored consequently. As a result SSLv2 client side session
2778 caching could not have worked due to the session ID mismatch between
2780 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2784 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2785 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2789 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2790 seems that in spite of existing for more than a year, many application
2791 author have done nothing to provide the necessary callbacks, which
2792 means that this particular engine will not work properly anywhere.
2793 This is a very unfortunate situation which forces us, in the name
2794 of usability, to give the hw_ncipher.c a static lock, which is part
2796 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2797 appear in 0.9.8 or later. We EXPECT application authors to have
2798 dealt properly with this when 0.9.8 is released (unless we actually
2799 make such changes in the libcrypto locking code that changes will
2800 have to be made anyway).
2803 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2804 octets have been read, EOF or an error occurs. Without this change
2805 some truncated ASN1 structures will not produce an error.
2808 *) Disable Heimdal support, since it hasn't been fully implemented.
2809 Still give the possibility to force the use of Heimdal, but with
2810 warnings and a request that patches get sent to openssl-dev.
2813 *) Add the VC-CE target, introduce the WINCE sysname, and add
2814 INSTALL.WCE and appropriate conditionals to make it build.
2815 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2817 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2818 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2819 edit numbers of the version.
2820 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2822 *) Introduce safe string copy and catenation functions
2823 (BUF_strlcpy() and BUF_strlcat()).
2824 [Ben Laurie (CHATS) and Richard Levitte]
2826 *) Avoid using fixed-size buffers for one-line DNs.
2827 [Ben Laurie (CHATS)]
2829 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2830 resizing buffers containing secrets, and use where appropriate.
2831 [Ben Laurie (CHATS)]
2833 *) Avoid using fixed size buffers for configuration file location.
2834 [Ben Laurie (CHATS)]
2836 *) Avoid filename truncation for various CA files.
2837 [Ben Laurie (CHATS)]
2839 *) Use sizeof in preference to magic numbers.
2840 [Ben Laurie (CHATS)]
2842 *) Avoid filename truncation in cert requests.
2843 [Ben Laurie (CHATS)]
2845 *) Add assertions to check for (supposedly impossible) buffer
2847 [Ben Laurie (CHATS)]
2849 *) Don't cache truncated DNS entries in the local cache (this could
2850 potentially lead to a spoofing attack).
2851 [Ben Laurie (CHATS)]
2853 *) Fix various buffers to be large enough for hex/decimal
2854 representations in a platform independent manner.
2855 [Ben Laurie (CHATS)]
2857 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2858 resizing buffers containing secrets, and use where appropriate.
2859 [Ben Laurie (CHATS)]
2861 *) Add BIO_indent() to avoid much slightly worrying code to do
2863 [Ben Laurie (CHATS)]
2865 *) Convert sprintf()/BIO_puts() to BIO_printf().
2866 [Ben Laurie (CHATS)]
2868 *) buffer_gets() could terminate with the buffer only half
2870 [Ben Laurie (CHATS)]
2872 *) Add assertions to prevent user-supplied crypto functions from
2873 overflowing internal buffers by having large block sizes, etc.
2874 [Ben Laurie (CHATS)]
2876 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2878 [Ben Laurie (CHATS)]
2880 *) Eliminate unused copy of key in RC4.
2881 [Ben Laurie (CHATS)]
2883 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2884 [Ben Laurie (CHATS)]
2886 *) Fix off-by-one error in EGD path.
2887 [Ben Laurie (CHATS)]
2889 *) If RANDFILE path is too long, ignore instead of truncating.
2890 [Ben Laurie (CHATS)]
2892 *) Eliminate unused and incorrectly sized X.509 structure
2894 [Ben Laurie (CHATS)]
2896 *) Eliminate unused and dangerous function knumber().
2897 [Ben Laurie (CHATS)]
2899 *) Eliminate unused and dangerous structure, KSSL_ERR.
2900 [Ben Laurie (CHATS)]
2902 *) Protect against overlong session ID context length in an encoded
2903 session object. Since these are local, this does not appear to be
2905 [Ben Laurie (CHATS)]
2907 *) Change from security patch (see 0.9.6e below) that did not affect
2908 the 0.9.6 release series:
2910 Remote buffer overflow in SSL3 protocol - an attacker could
2911 supply an oversized master key in Kerberos-enabled versions.
2913 [Ben Laurie (CHATS)]
2915 *) Change the SSL kerb5 codes to match RFC 2712.
2918 *) Make -nameopt work fully for req and add -reqopt switch.
2919 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2921 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2922 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2924 *) Make sure tests can be performed even if the corresponding algorithms
2925 have been removed entirely. This was also the last step to make
2926 OpenSSL compilable with DJGPP under all reasonable conditions.
2927 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2929 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2930 to allow version independent disabling of normally unselected ciphers,
2931 which may be activated as a side-effect of selecting a single cipher.
2933 (E.g., cipher list string "RSA" enables ciphersuites that are left
2934 out of "ALL" because they do not provide symmetric encryption.
2935 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2936 [Lutz Jaenicke, Bodo Moeller]
2938 *) Add appropriate support for separate platform-dependent build
2939 directories. The recommended way to make a platform-dependent
2940 build directory is the following (tested on Linux), maybe with
2943 # Place yourself outside of the OpenSSL source tree. In
2944 # this example, the environment variable OPENSSL_SOURCE
2945 # is assumed to contain the absolute OpenSSL source directory.
2946 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2947 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2948 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2949 mkdir -p `dirname $F`
2950 ln -s $OPENSSL_SOURCE/$F $F
2953 To be absolutely sure not to disturb the source tree, a "make clean"
2954 is a good thing. If it isn't successfull, don't worry about it,
2955 it probably means the source directory is very clean.
2958 *) Make sure any ENGINE control commands make local copies of string
2959 pointers passed to them whenever necessary. Otherwise it is possible
2960 the caller may have overwritten (or deallocated) the original string
2961 data when a later ENGINE operation tries to use the stored values.
2962 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2964 *) Improve diagnostics in file reading and command-line digests.
2965 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2967 *) Add AES modes CFB and OFB to the object database. Correct an
2968 error in AES-CFB decryption.
2971 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2972 allows existing EVP_CIPHER_CTX structures to be reused after
2973 calling EVP_*Final(). This behaviour is used by encryption
2974 BIOs and some applications. This has the side effect that
2975 applications must explicitly clean up cipher contexts with
2976 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2979 *) Check the values of dna and dnb in bn_mul_recursive before calling
2980 bn_mul_comba (a non zero value means the a or b arrays do not contain
2981 n2 elements) and fallback to bn_mul_normal if either is not zero.
2984 *) Fix escaping of non-ASCII characters when using the -subj option
2985 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2988 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2989 form for "surname", serialNumber has no short form.
2990 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2991 therefore remove "mail" short name for "internet 7".
2992 The OID for unique identifiers in X509 certificates is
2993 x500UniqueIdentifier, not uniqueIdentifier.
2994 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2997 *) Add an "init" command to the ENGINE config module and auto initialize
2998 ENGINEs. Without any "init" command the ENGINE will be initialized
2999 after all ctrl commands have been executed on it. If init=1 the
3000 ENGINE is initailized at that point (ctrls before that point are run
3001 on the uninitialized ENGINE and after on the initialized one). If
3002 init=0 then the ENGINE will not be iniatialized at all.
3005 *) Fix the 'app_verify_callback' interface so that the user-defined
3006 argument is actually passed to the callback: In the
3007 SSL_CTX_set_cert_verify_callback() prototype, the callback
3008 declaration has been changed from
3011 int (*cb)(X509_STORE_CTX *,void *);
3012 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3013 i=s->ctx->app_verify_callback(&ctx)
3014 has been changed into
3015 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3017 To update applications using SSL_CTX_set_cert_verify_callback(),
3018 a dummy argument can be added to their callback functions.
3019 [D. K. Smetters <smetters@parc.xerox.com>]
3021 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3022 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3024 *) Add and OPENSSL_LOAD_CONF define which will cause
3025 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3026 This allows older applications to transparently support certain
3027 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3028 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3029 load the config file and OPENSSL_add_all_algorithms_conf() which will
3030 always load it have also been added.
3033 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3034 Adjust NIDs and EVP layer.
3035 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3037 *) Config modules support in openssl utility.
3039 Most commands now load modules from the config file,
3040 though in a few (such as version) this isn't done
3041 because it couldn't be used for anything.
3043 In the case of ca and req the config file used is
3044 the same as the utility itself: that is the -config
3045 command line option can be used to specify an
3049 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3050 use "openssl_conf" if filename is NULL use default openssl config file.
3053 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3054 config section name. Add a new flag to tolerate a missing config file
3055 and move code to CONF_modules_load_file().
3058 *) Support for crypto accelerator cards from Accelerated Encryption
3059 Processing, www.aep.ie. (Use engine 'aep')
3060 The support was copied from 0.9.6c [engine] and adapted/corrected
3061 to work with the new engine framework.
3062 [AEP Inc. and Richard Levitte]
3064 *) Support for SureWare crypto accelerator cards from Baltimore
3065 Technologies. (Use engine 'sureware')
3066 The support was copied from 0.9.6c [engine] and adapted
3067 to work with the new engine framework.
3070 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3071 make the newer ENGINE framework commands for the CHIL engine work.
3072 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3074 *) Make it possible to produce shared libraries on ReliantUNIX.
3075 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3077 *) Add the configuration target debug-linux-ppro.
3078 Make 'openssl rsa' use the general key loading routines
3079 implemented in apps.c, and make those routines able to
3080 handle the key format FORMAT_NETSCAPE and the variant
3082 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3084 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3085 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3087 *) Add -keyform to rsautl, and document -engine.
3088 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3090 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3091 BIO_R_NO_SUCH_FILE error code rather than the generic
3092 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3095 *) Add new functions
3097 ERR_peek_last_error_line
3098 ERR_peek_last_error_line_data.
3099 These are similar to
3102 ERR_peek_error_line_data,
3103 but report on the latest error recorded rather than the first one
3104 still in the error queue.
3105 [Ben Laurie, Bodo Moeller]
3107 *) default_algorithms option in ENGINE config module. This allows things
3109 default_algorithms = ALL
3110 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3113 *) Prelminary ENGINE config module.
3116 *) New experimental application configuration code.
3119 *) Change the AES code to follow the same name structure as all other
3120 symmetric ciphers, and behave the same way. Move everything to
3121 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3122 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3124 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3125 [Ben Laurie and Theo de Raadt]
3127 *) Add option to output public keys in req command.
3128 [Massimiliano Pala madwolf@openca.org]
3130 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3131 (up to about 10% better than before for P-192 and P-224).
3134 *) New functions/macros
3136 SSL_CTX_set_msg_callback(ctx, cb)
3137 SSL_CTX_set_msg_callback_arg(ctx, arg)
3138 SSL_set_msg_callback(ssl, cb)
3139 SSL_set_msg_callback_arg(ssl, arg)
3141 to request calling a callback function
3143 void cb(int write_p, int version, int content_type,
3144 const void *buf, size_t len, SSL *ssl, void *arg)
3146 whenever a protocol message has been completely received
3147 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3148 protocol version according to which the SSL library interprets
3149 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3150 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3151 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3152 specification (change_cipher_spec(20), alert(21), handshake(22)).
3153 'buf' and 'len' point to the actual message, 'ssl' to the
3154 SSL object, and 'arg' is the application-defined value set by
3155 SSL[_CTX]_set_msg_callback_arg().
3157 'openssl s_client' and 'openssl s_server' have new '-msg' options
3158 to enable a callback that displays all protocol messages.
3161 *) Change the shared library support so shared libraries are built as
3162 soon as the corresponding static library is finished, and thereby get
3163 openssl and the test programs linked against the shared library.
3164 This still only happens when the keyword "shard" has been given to
3165 the configuration scripts.
3167 NOTE: shared library support is still an experimental thing, and
3168 backward binary compatibility is still not guaranteed.
3169 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3171 *) Add support for Subject Information Access extension.
3172 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3174 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3175 additional bytes when new memory had to be allocated, not just
3176 when reusing an existing buffer.
3179 *) New command line and configuration option 'utf8' for the req command.
3180 This allows field values to be specified as UTF8 strings.
3183 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3184 runs for the former and machine-readable output for the latter.
3187 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3188 of the e-mail address in the DN (i.e., it will go into a certificate
3189 extension only). The new configuration file option 'email_in_dn = no'
3190 has the same effect.
3191 [Massimiliano Pala madwolf@openca.org]
3193 *) Change all functions with names starting with des_ to be starting
3194 with DES_ instead. Add wrappers that are compatible with libdes,
3195 but are named _ossl_old_des_*. Finally, add macros that map the
3196 des_* symbols to the corresponding _ossl_old_des_* if libdes
3197 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3198 desired, the des_* symbols will be mapped to DES_*, with one
3201 Since we provide two compatibility mappings, the user needs to
3202 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3203 compatibility is desired. The default (i.e., when that macro
3204 isn't defined) is OpenSSL 0.9.6c compatibility.
3206 There are also macros that enable and disable the support of old
3207 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3208 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3209 are defined, the default will apply: to support the old des routines.
3211 In either case, one must include openssl/des.h to get the correct
3212 definitions. Do not try to just include openssl/des_old.h, that
3215 NOTE: This is a major break of an old API into a new one. Software
3216 authors are encouraged to switch to the DES_ style functions. Some
3217 time in the future, des_old.h and the libdes compatibility functions
3218 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3219 default), and then completely removed.
3222 *) Test for certificates which contain unsupported critical extensions.
3223 If such a certificate is found during a verify operation it is
3224 rejected by default: this behaviour can be overridden by either
3225 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3226 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3227 X509_supported_extension() has also been added which returns 1 if a
3228 particular extension is supported.
3231 *) Modify the behaviour of EVP cipher functions in similar way to digests
3232 to retain compatibility with existing code.
3235 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3236 compatibility with existing code. In particular the 'ctx' parameter does
3237 not have to be to be initialized before the call to EVP_DigestInit() and
3238 it is tidied up after a call to EVP_DigestFinal(). New function
3239 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3240 EVP_MD_CTX_copy() changed to not require the destination to be
3241 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3242 requires the destination to be valid.
3244 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3245 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3248 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3249 so that complete 'Handshake' protocol structures are kept in memory
3250 instead of overwriting 'msg_type' and 'length' with 'body' data.
3253 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3254 [Massimo Santin via Richard Levitte]
3256 *) Major restructuring to the underlying ENGINE code. This includes
3257 reduction of linker bloat, separation of pure "ENGINE" manipulation
3258 (initialisation, etc) from functionality dealing with implementations
3259 of specific crypto iterfaces. This change also introduces integrated
3260 support for symmetric ciphers and digest implementations - so ENGINEs
3261 can now accelerate these by providing EVP_CIPHER and EVP_MD
3262 implementations of their own. This is detailed in crypto/engine/README
3263 as it couldn't be adequately described here. However, there are a few
3264 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3265 were changed in the original introduction of ENGINE code have now
3266 reverted back - the hooking from this code to ENGINE is now a good
3267 deal more passive and at run-time, operations deal directly with
3268 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3269 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3270 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3271 they were not being used by the framework as there is no concept of a
3272 BIGNUM_METHOD and they could not be generalised to the new
3273 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3274 ENGINE_cpy() has been removed as it cannot be consistently defined in
3278 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3281 *) Change mkdef.pl to sort symbols that get the same entry number,
3282 and make sure the automatically generated functions ERR_load_*
3283 become part of libeay.num as well.
3286 *) New function SSL_renegotiate_pending(). This returns true once
3287 renegotiation has been requested (either SSL_renegotiate() call
3288 or HelloRequest/ClientHello receveived from the peer) and becomes
3289 false once a handshake has been completed.
3290 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3291 sends a HelloRequest, but does not ensure that a handshake takes
3292 place. SSL_renegotiate_pending() is useful for checking if the
3293 client has followed the request.)
3296 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3297 By default, clients may request session resumption even during
3298 renegotiation (if session ID contexts permit); with this option,
3299 session resumption is possible only in the first handshake.
3301 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3302 more bits available for options that should not be part of
3303 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3306 *) Add some demos for certificate and certificate request creation.
3309 *) Make maximum certificate chain size accepted from the peer application
3310 settable (SSL*_get/set_max_cert_list()), as proposed by
3311 "Douglas E. Engert" <deengert@anl.gov>.
3314 *) Add support for shared libraries for Unixware-7
3315 (Boyd Lynn Gerber <gerberb@zenez.com>).
3318 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3319 be done prior to destruction. Use this to unload error strings from
3320 ENGINEs that load their own error strings. NB: This adds two new API
3321 functions to "get" and "set" this destroy handler in an ENGINE.
3324 *) Alter all existing ENGINE implementations (except "openssl" and
3325 "openbsd") to dynamically instantiate their own error strings. This
3326 makes them more flexible to be built both as statically-linked ENGINEs
3327 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3328 Also, add stub code to each that makes building them as self-contained
3329 shared-libraries easier (see README.ENGINE).
3332 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3333 implementations into applications that are completely implemented in
3334 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3335 commands that can be used to configure what shared-library to load and
3336 to control aspects of the way it is handled. Also, made an update to
3337 the README.ENGINE file that brings its information up-to-date and
3338 provides some information and instructions on the "dynamic" ENGINE
3339 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3342 *) Make it possible to unload ranges of ERR strings with a new
3343 "ERR_unload_strings" function.
3346 *) Add a copy() function to EVP_MD.
3349 *) Make EVP_MD routines take a context pointer instead of just the
3350 md_data void pointer.
3353 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3354 that the digest can only process a single chunk of data
3355 (typically because it is provided by a piece of
3356 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3357 is only going to provide a single chunk of data, and hence the
3358 framework needn't accumulate the data for oneshot drivers.
3361 *) As with "ERR", make it possible to replace the underlying "ex_data"
3362 functions. This change also alters the storage and management of global
3363 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3364 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3365 index counters. The API functions that use this state have been changed
3366 to take a "class_index" rather than pointers to the class's local STACK
3367 and counter, and there is now an API function to dynamically create new
3368 classes. This centralisation allows us to (a) plug a lot of the
3369 thread-safety problems that existed, and (b) makes it possible to clean
3370 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3371 such data would previously have always leaked in application code and
3372 workarounds were in place to make the memory debugging turn a blind eye
3373 to it. Application code that doesn't use this new function will still
3374 leak as before, but their memory debugging output will announce it now
3375 rather than letting it slide.
3377 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3378 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3379 has a return value to indicate success or failure.
3382 *) Make it possible to replace the underlying "ERR" functions such that the
3383 global state (2 LHASH tables and 2 locks) is only used by the "default"
3384 implementation. This change also adds two functions to "get" and "set"
3385 the implementation prior to it being automatically set the first time
3386 any other ERR function takes place. Ie. an application can call "get",
3387 pass the return value to a module it has just loaded, and that module
3388 can call its own "set" function using that value. This means the
3389 module's "ERR" operations will use (and modify) the error state in the
3390 application and not in its own statically linked copy of OpenSSL code.
3393 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3394 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3395 the operation, and provides a more encapsulated way for external code
3396 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3397 to use these functions rather than manually incrementing the counts.
3399 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3402 *) Add EVP test program.
3405 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3408 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3409 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3410 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3411 These allow a CRL to be built without having to access X509_CRL fields
3412 directly. Modify 'ca' application to use new functions.
3415 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3416 bug workarounds. Rollback attack detection is a security feature.
3417 The problem will only arise on OpenSSL servers when TLSv1 is not
3418 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3419 Software authors not wanting to support TLSv1 will have special reasons
3420 for their choice and can explicitly enable this option.
3421 [Bodo Moeller, Lutz Jaenicke]
3423 *) Rationalise EVP so it can be extended: don't include a union of
3424 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3425 (similar to those existing for EVP_CIPHER_CTX).
3430 EVP_MD_CTX_init(&md); /* new function call */
3431 EVP_DigestInit(&md, EVP_sha1());
3432 EVP_DigestUpdate(&md, in, len);
3433 EVP_DigestFinal(&md, out, NULL);
3434 EVP_MD_CTX_cleanup(&md); /* new function call */
3438 *) Make DES key schedule conform to the usual scheme, as well as
3439 correcting its structure. This means that calls to DES functions
3440 now have to pass a pointer to a des_key_schedule instead of a
3441 plain des_key_schedule (which was actually always a pointer
3444 des_key_schedule ks;
3446 des_set_key_checked(..., &ks);
3447 des_ncbc_encrypt(..., &ks, ...);
3449 (Note that a later change renames 'des_...' into 'DES_...'.)
3452 *) Initial reduction of linker bloat: the use of some functions, such as
3453 PEM causes large amounts of unused functions to be linked in due to
3454 poor organisation. For example pem_all.c contains every PEM function
3455 which has a knock on effect of linking in large amounts of (unused)
3456 ASN1 code. Grouping together similar functions and splitting unrelated
3457 functions prevents this.
3460 *) Cleanup of EVP macros.
3463 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3464 correct _ecb suffix.
3467 *) Add initial OCSP responder support to ocsp application. The
3468 revocation information is handled using the text based index
3469 use by the ca application. The responder can either handle
3470 requests generated internally, supplied in files (for example
3471 via a CGI script) or using an internal minimal server.
3474 *) Add configuration choices to get zlib compression for TLS.
3477 *) Changes to Kerberos SSL for RFC 2712 compliance:
3478 1. Implemented real KerberosWrapper, instead of just using
3479 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3480 2. Implemented optional authenticator field of KerberosWrapper.
3482 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3483 and authenticator structs; see crypto/krb5/.
3485 Generalized Kerberos calls to support multiple Kerberos libraries.
3486 [Vern Staats <staatsvr@asc.hpc.mil>,
3487 Jeffrey Altman <jaltman@columbia.edu>
3488 via Richard Levitte]
3490 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3491 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3492 values for each of the key sizes rather than having just
3493 parameters (and 'speed' generating keys each time).
3496 *) Speed up EVP routines.
3499 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3500 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3501 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3502 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3504 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3505 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3506 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3509 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3511 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3514 *) Added the OS2-EMX target.
3515 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3517 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3518 to support NCONF routines in extension code. New function CONF_set_nconf()
3519 to allow functions which take an NCONF to also handle the old LHASH
3520 structure: this means that the old CONF compatible routines can be
3521 retained (in particular wrt extensions) without having to duplicate the
3522 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3525 *) Enhance the general user interface with mechanisms for inner control
3526 and with possibilities to have yes/no kind of prompts.
3529 *) Change all calls to low level digest routines in the library and
3530 applications to use EVP. Add missing calls to HMAC_cleanup() and
3531 don't assume HMAC_CTX can be copied using memcpy().
3532 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3534 *) Add the possibility to control engines through control names but with
3535 arbitrary arguments instead of just a string.
3536 Change the key loaders to take a UI_METHOD instead of a callback
3537 function pointer. NOTE: this breaks binary compatibility with earlier
3538 versions of OpenSSL [engine].
3539 Adapt the nCipher code for these new conditions and add a card insertion
3543 *) Enhance the general user interface with mechanisms to better support
3544 dialog box interfaces, application-defined prompts, the possibility
3545 to use defaults (for example default passwords from somewhere else)
3546 and interrupts/cancellations.
3549 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3550 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3553 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3554 tidy up some unnecessarily weird code in 'sk_new()').
3555 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3557 *) Change the key loading routines for ENGINEs to use the same kind
3558 callback (pem_password_cb) as all other routines that need this
3562 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3563 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3564 than this minimum value is recommended.
3567 *) New random seeder for OpenVMS, using the system process statistics
3568 that are easily reachable.
3571 *) Windows apparently can't transparently handle global
3572 variables defined in DLLs. Initialisations such as:
3574 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3576 wont compile. This is used by the any applications that need to
3577 declare their own ASN1 modules. This was fixed by adding the option
3578 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3579 needed for static libraries under Win32.
3582 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3583 setting of purpose and trust fields. New X509_STORE trust and
3584 purpose functions and tidy up setting in other SSL functions.
3587 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3588 structure. These are inherited by X509_STORE_CTX when it is
3589 initialised. This allows various defaults to be set in the
3590 X509_STORE structure (such as flags for CRL checking and custom
3591 purpose or trust settings) for functions which only use X509_STORE_CTX
3592 internally such as S/MIME.
3594 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3595 trust settings if they are not set in X509_STORE. This allows X509_STORE
3596 purposes and trust (in S/MIME for example) to override any set by default.
3598 Add command line options for CRL checking to smime, s_client and s_server
3602 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3603 are set then the CRL is looked up in the X509_STORE structure and
3604 its validity and signature checked, then if the certificate is found
3605 in the CRL the verify fails with a revoked error.
3607 Various new CRL related callbacks added to X509_STORE_CTX structure.
3609 Command line options added to 'verify' application to support this.
3611 This needs some additional work, such as being able to handle multiple
3612 CRLs with different times, extension based lookup (rather than just
3613 by subject name) and ultimately more complete V2 CRL extension
3617 *) Add a general user interface API (crypto/ui/). This is designed
3618 to replace things like des_read_password and friends (backward
3619 compatibility functions using this new API are provided).
3620 The purpose is to remove prompting functions from the DES code
3621 section as well as provide for prompting through dialog boxes in
3622 a window system and the like.
3625 *) Add "ex_data" support to ENGINE so implementations can add state at a
3626 per-structure level rather than having to store it globally.
3629 *) Make it possible for ENGINE structures to be copied when retrieved by
3630 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3631 This causes the "original" ENGINE structure to act like a template,
3632 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3633 operational state can be localised to each ENGINE structure, despite the
3634 fact they all share the same "methods". New ENGINE structures returned in
3635 this case have no functional references and the return value is the single
3636 structural reference. This matches the single structural reference returned
3637 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3641 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3642 needs to match any other type at all we need to manually clear the
3646 *) Changes to the "openssl engine" utility to include;
3647 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3648 about an ENGINE's available control commands.
3649 - executing control commands from command line arguments using the
3650 '-pre' and '-post' switches. '-post' is only used if '-t' is
3651 specified and the ENGINE is successfully initialised. The syntax for
3652 the individual commands are colon-separated, for example;
3653 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3656 *) New dynamic control command support for ENGINEs. ENGINEs can now
3657 declare their own commands (numbers), names (strings), descriptions,
3658 and input types for run-time discovery by calling applications. A
3659 subset of these commands are implicitly classed as "executable"
3660 depending on their input type, and only these can be invoked through
3661 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3662 can be based on user input, config files, etc). The distinction is
3663 that "executable" commands cannot return anything other than a boolean
3664 result and can only support numeric or string input, whereas some
3665 discoverable commands may only be for direct use through
3666 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3667 pointers, or other custom uses. The "executable" commands are to
3668 support parameterisations of ENGINE behaviour that can be
3669 unambiguously defined by ENGINEs and used consistently across any
3670 OpenSSL-based application. Commands have been added to all the
3671 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3672 control over shared-library paths without source code alterations.
3675 *) Changed all ENGINE implementations to dynamically allocate their
3676 ENGINEs rather than declaring them statically. Apart from this being
3677 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3678 this also allows the implementations to compile without using the
3679 internal engine_int.h header.
3682 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3683 'const' value. Any code that should be able to modify a RAND_METHOD
3684 should already have non-const pointers to it (ie. they should only
3685 modify their own ones).
3688 *) Made a variety of little tweaks to the ENGINE code.
3689 - "atalla" and "ubsec" string definitions were moved from header files
3690 to C code. "nuron" string definitions were placed in variables
3691 rather than hard-coded - allowing parameterisation of these values
3692 later on via ctrl() commands.
3693 - Removed unused "#if 0"'d code.
3694 - Fixed engine list iteration code so it uses ENGINE_free() to release
3695 structural references.
3696 - Constified the RAND_METHOD element of ENGINE structures.
3697 - Constified various get/set functions as appropriate and added
3698 missing functions (including a catch-all ENGINE_cpy that duplicates
3699 all ENGINE values onto a new ENGINE except reference counts/state).
3700 - Removed NULL parameter checks in get/set functions. Setting a method
3701 or function to NULL is a way of cancelling out a previously set
3702 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3703 and doesn't justify the extra error symbols and code.
3704 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3705 flags from engine_int.h to engine.h.
3706 - Changed prototypes for ENGINE handler functions (init(), finish(),
3707 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3710 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3711 to the algorithm using long division. The binary algorithm can be
3712 used only if the modulus is odd. On 32-bit systems, it is faster
3713 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3714 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3715 up to 450 bits. In 64-bit environments, the binary algorithm
3716 appears to be advantageous for much longer moduli; here we use it
3717 for moduli up to 2048 bits.
3720 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3721 could not support the combine flag in choice fields.
3724 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3725 extensions from a certificate request to the certificate.
3728 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3729 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3730 file: this allows the display of the certificate about to be
3731 signed to be customised, to allow certain fields to be included
3732 or excluded and extension details. The old system didn't display
3733 multicharacter strings properly, omitted fields not in the policy
3734 and couldn't display additional details such as extensions.
3737 *) Function EC_POINTs_mul for multiple scalar multiplication
3738 of an arbitrary number of elliptic curve points
3739 \sum scalars[i]*points[i],
3740 optionally including the generator defined for the EC_GROUP:
3741 scalar*generator + \sum scalars[i]*points[i].
3743 EC_POINT_mul is a simple wrapper function for the typical case
3744 that the point list has just one item (besides the optional
3748 *) First EC_METHODs for curves over GF(p):
3750 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3751 operations and provides various method functions that can also
3752 operate with faster implementations of modular arithmetic.
3754 EC_GFp_mont_method() reuses most functions that are part of
3755 EC_GFp_simple_method, but uses Montgomery arithmetic.
3757 [Bodo Moeller; point addition and point doubling
3758 implementation directly derived from source code provided by
3759 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3761 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3762 crypto/ec/ec_lib.c):
3764 Curves are EC_GROUP objects (with an optional group generator)
3765 based on EC_METHODs that are built into the library.
3767 Points are EC_POINT objects based on EC_GROUP objects.
3769 Most of the framework would be able to handle curves over arbitrary
3770 finite fields, but as there are no obvious types for fields other
3771 than GF(p), some functions are limited to that for now.
3774 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3775 that the file contains a complete HTTP response.
3778 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3779 change the def and num file printf format specifier from "%-40sXXX"
3780 to "%-39s XXX". The latter will always guarantee a space after the
3781 field while the former will cause them to run together if the field
3782 is 40 of more characters long.
3785 *) Constify the cipher and digest 'method' functions and structures
3786 and modify related functions to take constant EVP_MD and EVP_CIPHER
3790 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3791 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3794 *) Modify EVP_Digest*() routines so they now return values. Although the
3795 internal software routines can never fail additional hardware versions
3799 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3801 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3802 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3805 ERR_R_NESTED_ASN1_ERROR
3807 ERR_R_MISSING_ASN1_EOS
3808 were 4 .. 9, conflicting with
3809 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3811 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3812 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3814 Add new error code 'ERR_R_INTERNAL_ERROR'.
3817 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3821 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3822 sets the subject name for a new request or supersedes the
3823 subject name in a given request. Formats that can be parsed are
3824 'CN=Some Name, OU=myOU, C=IT'
3826 'CN=Some Name/OU=myOU/C=IT'.
3828 Add options '-batch' and '-verbose' to 'openssl req'.
3829 [Massimiliano Pala <madwolf@hackmasters.net>]
3831 *) Introduce the possibility to access global variables through
3832 functions on platform were that's the best way to handle exporting
3833 global variables in shared libraries. To enable this functionality,
3834 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3835 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3836 is normally done by Configure or something similar).
3838 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3839 in the source file (foo.c) like this:
3841 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3842 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3844 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3845 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3847 OPENSSL_DECLARE_GLOBAL(int,foo);
3848 #define foo OPENSSL_GLOBAL_REF(foo)
3849 OPENSSL_DECLARE_GLOBAL(double,bar);
3850 #define bar OPENSSL_GLOBAL_REF(bar)
3852 The #defines are very important, and therefore so is including the
3853 header file everywhere where the defined globals are used.
3855 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3856 of ASN.1 items, but that structure is a bit different.
3858 The largest change is in util/mkdef.pl which has been enhanced with
3859 better and easier to understand logic to choose which symbols should
3860 go into the Windows .def files as well as a number of fixes and code
3861 cleanup (among others, algorithm keywords are now sorted
3862 lexicographically to avoid constant rewrites).
3865 *) In BN_div() keep a copy of the sign of 'num' before writing the
3866 result to 'rm' because if rm==num the value will be overwritten
3867 and produce the wrong result if 'num' is negative: this caused
3868 problems with BN_mod() and BN_nnmod().
3871 *) Function OCSP_request_verify(). This checks the signature on an
3872 OCSP request and verifies the signer certificate. The signer
3873 certificate is just checked for a generic purpose and OCSP request
3877 *) Add OCSP_check_validity() function to check the validity of OCSP
3878 responses. OCSP responses are prepared in real time and may only
3879 be a few seconds old. Simply checking that the current time lies
3880 between thisUpdate and nextUpdate max reject otherwise valid responses
3881 caused by either OCSP responder or client clock inaccuracy. Instead
3882 we allow thisUpdate and nextUpdate to fall within a certain period of
3883 the current time. The age of the response can also optionally be
3884 checked. Two new options -validity_period and -status_age added to
3888 *) If signature or public key algorithm is unrecognized print out its
3889 OID rather that just UNKNOWN.
3892 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3893 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3894 ID to be generated from the issuer certificate alone which can then be
3895 passed to OCSP_id_issuer_cmp().
3898 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3899 ASN1 modules to export functions returning ASN1_ITEM pointers
3900 instead of the ASN1_ITEM structures themselves. This adds several
3901 new macros which allow the underlying ASN1 function/structure to
3902 be accessed transparently. As a result code should not use ASN1_ITEM
3903 references directly (such as &X509_it) but instead use the relevant
3904 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3905 use of the new ASN1 code on platforms where exporting structures
3906 is problematical (for example in shared libraries) but exporting
3907 functions returning pointers to structures is not.
3910 *) Add support for overriding the generation of SSL/TLS session IDs.
3911 These callbacks can be registered either in an SSL_CTX or per SSL.
3912 The purpose of this is to allow applications to control, if they wish,
3913 the arbitrary values chosen for use as session IDs, particularly as it
3914 can be useful for session caching in multiple-server environments. A
3915 command-line switch for testing this (and any client code that wishes
3916 to use such a feature) has been added to "s_server".
3917 [Geoff Thorpe, Lutz Jaenicke]
3919 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3920 of the form '#if defined(...) || defined(...) || ...' and
3921 '#if !defined(...) && !defined(...) && ...'. This also avoids
3922 the growing number of special cases it was previously handling.
3925 *) Make all configuration macros available for application by making
3926 sure they are available in opensslconf.h, by giving them names starting
3927 with "OPENSSL_" to avoid conflicts with other packages and by making
3928 sure e_os2.h will cover all platform-specific cases together with
3930 Additionally, it is now possible to define configuration/platform-
3931 specific names (called "system identities"). In the C code, these
3932 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3933 macro with the name beginning with "OPENSSL_SYS_", which is determined
3934 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3938 *) New option -set_serial to 'req' and 'x509' this allows the serial
3939 number to use to be specified on the command line. Previously self
3940 signed certificates were hard coded with serial number 0 and the
3941 CA options of 'x509' had to use a serial number in a file which was
3945 *) New options to 'ca' utility to support V2 CRL entry extensions.
3946 Currently CRL reason, invalidity date and hold instruction are
3947 supported. Add new CRL extensions to V3 code and some new objects.
3950 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3951 disable standard block padding (aka PKCS#5 padding) in the EVP
3952 API, which was previously mandatory. This means that the data is
3953 not padded in any way and so the total length much be a multiple
3954 of the block size, otherwise an error occurs.
3957 *) Initial (incomplete) OCSP SSL support.
3960 *) New function OCSP_parse_url(). This splits up a URL into its host,
3961 port and path components: primarily to parse OCSP URLs. New -url
3962 option to ocsp utility.
3965 *) New nonce behavior. The return value of OCSP_check_nonce() now
3966 reflects the various checks performed. Applications can decide
3967 whether to tolerate certain situations such as an absent nonce
3968 in a response when one was present in a request: the ocsp application
3969 just prints out a warning. New function OCSP_add1_basic_nonce()
3970 this is to allow responders to include a nonce in a response even if
3971 the request is nonce-less.
3974 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3975 skipped when using openssl x509 multiple times on a single input file,
3976 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3979 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3980 set string type: to handle setting ASN1_TIME structures. Fix ca
3981 utility to correctly initialize revocation date of CRLs.
3984 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3985 the clients preferred ciphersuites and rather use its own preferences.
3986 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3987 Internet Explorer by ensuring unchanged hash method during stepup.
3988 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3991 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3992 to aes and add a new 'exist' option to print out symbols that don't
3996 *) Additional options to ocsp utility to allow flags to be set and
3997 additional certificates supplied.
4000 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4001 OCSP client a number of certificate to only verify the response
4005 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4006 handle the new API. Currently only ECB, CBC modes supported. Add new
4009 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4010 Encryption Standard (AES) Ciphersuites for Transport Layer
4011 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4012 not enabled by default and were not part of the "ALL" ciphersuite
4013 alias because they were not yet official; they could be
4014 explicitly requested by specifying the "AESdraft" ciphersuite
4015 group alias. In the final release of OpenSSL 0.9.7, the group
4016 alias is called "AES" and is part of "ALL".)
4017 [Ben Laurie, Steve Henson, Bodo Moeller]
4019 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4020 request to response.
4023 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4024 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4025 extract information from a certificate request. OCSP_response_create()
4026 creates a response and optionally adds a basic response structure.
4027 OCSP_basic_add1_status() adds a complete single response to a basic
4028 response and returns the OCSP_SINGLERESP structure just added (to allow
4029 extensions to be included for example). OCSP_basic_add1_cert() adds a
4030 certificate to a basic response and OCSP_basic_sign() signs a basic
4031 response with various flags. New helper functions ASN1_TIME_check()
4032 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4033 (converts ASN1_TIME to GeneralizedTime).
4036 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4037 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4038 structure from a certificate. X509_pubkey_digest() digests the public_key
4039 contents: this is used in various key identifiers.
4042 *) Make sk_sort() tolerate a NULL argument.
4043 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4045 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4046 passed by the function are trusted implicitly. If any of them signed the
4047 response then it is assumed to be valid and is not verified.
4050 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4051 to data. This was previously part of the PKCS7 ASN1 code. This
4052 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4053 [Steve Henson, reported by Kenneth R. Robinette
4054 <support@securenetterm.com>]
4056 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4057 routines: without these tracing memory leaks is very painful.
4058 Fix leaks in PKCS12 and PKCS7 routines.
4061 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4062 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4063 effectively meant GeneralizedTime would never be used. Now it
4064 is initialised to -1 but X509_time_adj() now has to check the value
4065 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4066 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4067 [Steve Henson, reported by Kenneth R. Robinette
4068 <support@securenetterm.com>]
4070 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4071 result in a zero length in the ASN1_INTEGER structure which was
4072 not consistent with the structure when d2i_ASN1_INTEGER() was used
4073 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4074 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4075 where it did not print out a minus for negative ASN1_INTEGER.
4078 *) Add summary printout to ocsp utility. The various functions which
4079 convert status values to strings have been renamed to:
4080 OCSP_response_status_str(), OCSP_cert_status_str() and
4081 OCSP_crl_reason_str() and are no longer static. New options
4082 to verify nonce values and to disable verification. OCSP response
4083 printout format cleaned up.
4086 *) Add additional OCSP certificate checks. These are those specified
4087 in RFC2560. This consists of two separate checks: the CA of the
4088 certificate being checked must either be the OCSP signer certificate
4089 or the issuer of the OCSP signer certificate. In the latter case the
4090 OCSP signer certificate must contain the OCSP signing extended key
4091 usage. This check is performed by attempting to match the OCSP
4092 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4093 in the OCSP_CERTID structures of the response.
4096 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4097 and related routines. This uses the standard OpenSSL certificate
4098 verify routines to perform initial checks (just CA validity) and
4099 to obtain the certificate chain. Then additional checks will be
4100 performed on the chain. Currently the root CA is checked to see
4101 if it is explicitly trusted for OCSP signing. This is used to set
4102 a root CA as a global signing root: that is any certificate that
4103 chains to that CA is an acceptable OCSP signing certificate.
4106 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4107 extensions from a separate configuration file.
4108 As when reading extensions from the main configuration file,
4109 the '-extensions ...' option may be used for specifying the
4111 [Massimiliano Pala <madwolf@comune.modena.it>]
4113 *) New OCSP utility. Allows OCSP requests to be generated or
4114 read. The request can be sent to a responder and the output
4115 parsed, outputed or printed in text form. Not complete yet:
4116 still needs to check the OCSP response validity.
4119 *) New subcommands for 'openssl ca':
4120 'openssl ca -status <serial>' prints the status of the cert with
4121 the given serial number (according to the index file).
4122 'openssl ca -updatedb' updates the expiry status of certificates
4124 [Massimiliano Pala <madwolf@comune.modena.it>]
4126 *) New '-newreq-nodes' command option to CA.pl. This is like
4127 '-newreq', but calls 'openssl req' with the '-nodes' option
4128 so that the resulting key is not encrypted.
4129 [Damien Miller <djm@mindrot.org>]
4131 *) New configuration for the GNU Hurd.
4132 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4134 *) Initial code to implement OCSP basic response verify. This
4135 is currently incomplete. Currently just finds the signer's
4136 certificate and verifies the signature on the response.
4139 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4140 value of OPENSSLDIR. This is available via the new '-d' option
4141 to 'openssl version', and is also included in 'openssl version -a'.
4144 *) Allowing defining memory allocation callbacks that will be given
4145 file name and line number information in additional arguments
4146 (a const char* and an int). The basic functionality remains, as
4147 well as the original possibility to just replace malloc(),
4148 realloc() and free() by functions that do not know about these
4149 additional arguments. To register and find out the current
4150 settings for extended allocation functions, the following
4151 functions are provided:
4153 CRYPTO_set_mem_ex_functions
4154 CRYPTO_set_locked_mem_ex_functions
4155 CRYPTO_get_mem_ex_functions
4156 CRYPTO_get_locked_mem_ex_functions
4158 These work the same way as CRYPTO_set_mem_functions and friends.
4159 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4160 extended allocation function is enabled.
4161 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4162 a conventional allocation function is enabled.
4163 [Richard Levitte, Bodo Moeller]
4165 *) Finish off removing the remaining LHASH function pointer casts.
4166 There should no longer be any prototype-casting required when using
4167 the LHASH abstraction, and any casts that remain are "bugs". See
4168 the callback types and macros at the head of lhash.h for details
4169 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4172 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4173 If /dev/[u]random devices are not available or do not return enough
4174 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4176 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4177 /etc/entropy will be queried once each in this sequence, quering stops
4178 when enough entropy was collected without querying more sockets.
4181 *) Change the Unix RAND_poll() variant to be able to poll several
4182 random devices, as specified by DEVRANDOM, until a sufficient amount
4183 of data has been collected. We spend at most 10 ms on each file
4184 (select timeout) and read in non-blocking mode. DEVRANDOM now
4185 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4186 (previously it was just the string "/dev/urandom"), so on typical
4187 platforms the 10 ms delay will never occur.
4188 Also separate out the Unix variant to its own file, rand_unix.c.
4189 For VMS, there's a currently-empty rand_vms.c.
4192 *) Move OCSP client related routines to ocsp_cl.c. These
4193 provide utility functions which an application needing
4194 to issue a request to an OCSP responder and analyse the
4195 response will typically need: as opposed to those which an
4196 OCSP responder itself would need which will be added later.
4198 OCSP_request_sign() signs an OCSP request with an API similar
4199 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4200 response. OCSP_response_get1_basic() extracts basic response
4201 from response. OCSP_resp_find_status(): finds and extracts status
4202 information from an OCSP_CERTID structure (which will be created
4203 when the request structure is built). These are built from lower
4204 level functions which work on OCSP_SINGLERESP structures but
4205 wont normally be used unless the application wishes to examine
4206 extensions in the OCSP response for example.
4208 Replace nonce routines with a pair of functions.
4209 OCSP_request_add1_nonce() adds a nonce value and optionally
4210 generates a random value. OCSP_check_nonce() checks the
4211 validity of the nonce in an OCSP response.
4214 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4215 This doesn't copy the supplied OCSP_CERTID and avoids the
4216 need to free up the newly created id. Change return type
4217 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4218 This can then be used to add extensions to the request.
4219 Deleted OCSP_request_new(), since most of its functionality
4220 is now in OCSP_REQUEST_new() (and the case insensitive name
4221 clash) apart from the ability to set the request name which
4222 will be added elsewhere.
4225 *) Update OCSP API. Remove obsolete extensions argument from
4226 various functions. Extensions are now handled using the new
4227 OCSP extension code. New simple OCSP HTTP function which
4228 can be used to send requests and parse the response.
4231 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4232 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4233 uses the special reorder version of SET OF to sort the attributes
4234 and reorder them to match the encoded order. This resolves a long
4235 standing problem: a verify on a PKCS7 structure just after signing
4236 it used to fail because the attribute order did not match the
4237 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4238 it uses the received order. This is necessary to tolerate some broken
4239 software that does not order SET OF. This is handled by encoding
4240 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4241 to produce the required SET OF.
4244 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4245 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4246 files to get correct declarations of the ASN.1 item variables.
4249 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4250 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4251 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4252 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4253 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4254 ASN1_ITEM and no wrapper functions.
4257 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4258 replace the old function pointer based I/O routines. Change most of
4259 the *_d2i_bio() and *_d2i_fp() functions to use these.
4262 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4263 lines, recognice more "algorithms" that can be deselected, and make
4264 it complain about algorithm deselection that isn't recognised.
4267 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4268 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4269 to use new functions. Add NO_ASN1_OLD which can be set to remove
4270 some old style ASN1 functions: this can be used to determine if old
4271 code will still work when these eventually go away.
4274 *) New extension functions for OCSP structures, these follow the
4275 same conventions as certificates and CRLs.
4278 *) New function X509V3_add1_i2d(). This automatically encodes and
4279 adds an extension. Its behaviour can be customised with various
4280 flags to append, replace or delete. Various wrappers added for
4281 certifcates and CRLs.
4284 *) Fix to avoid calling the underlying ASN1 print routine when
4285 an extension cannot be parsed. Correct a typo in the
4286 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4289 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4290 entries for variables.
4293 *) Add functionality to apps/openssl.c for detecting locking
4294 problems: As the program is single-threaded, all we have
4295 to do is register a locking callback using an array for
4296 storing which locks are currently held by the program.
4299 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4300 SSL_get_ex_data_X509_STORE_idx(), which is used in
4301 ssl_verify_cert_chain() and thus can be called at any time
4302 during TLS/SSL handshakes so that thread-safety is essential.
4303 Unfortunately, the ex_data design is not at all suited
4304 for multi-threaded use, so it probably should be abolished.
4307 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4308 [Broadcom, tweaked and integrated by Geoff Thorpe]
4310 *) Move common extension printing code to new function
4311 X509V3_print_extensions(). Reorganise OCSP print routines and
4312 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4315 *) New function X509_signature_print() to remove duplication in some
4319 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4320 set (this was treated exactly the same as SET OF previously). This
4321 is used to reorder the STACK representing the structure to match the
4322 encoding. This will be used to get round a problem where a PKCS7
4323 structure which was signed could not be verified because the STACK
4324 order did not reflect the encoded order.
4327 *) Reimplement the OCSP ASN1 module using the new code.
4330 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4331 for its ASN1 operations. The old style function pointers still exist
4332 for now but they will eventually go away.
4335 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4336 completely replaces the old ASN1 functionality with a table driven
4337 encoder and decoder which interprets an ASN1_ITEM structure describing
4338 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4339 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4340 has also been converted to the new form.
4343 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4344 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4345 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4346 for negative moduli.
4349 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4350 of not touching the result's sign bit.
4353 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4357 *) Changed the LHASH code to use prototypes for callbacks, and created
4358 macros to declare and implement thin (optionally static) functions
4359 that provide type-safety and avoid function pointer casting for the
4360 type-specific callbacks.
4363 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4365 [Veers Staats <staatsvr@asc.hpc.mil>,
4366 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4368 *) Reformat the FAQ so the different questions and answers can be divided
4369 in sections depending on the subject.
4372 *) Have the zlib compression code load ZLIB.DLL dynamically under
4376 *) New function BN_mod_sqrt for computing square roots modulo a prime
4377 (using the probabilistic Tonelli-Shanks algorithm unless
4378 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4379 be handled deterministically).
4380 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4382 *) Make BN_mod_inverse faster by explicitly handling small quotients
4383 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4384 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4387 *) New function BN_kronecker.
4390 *) Fix BN_gcd so that it works on negative inputs; the result is
4391 positive unless both parameters are zero.
4392 Previously something reasonably close to an infinite loop was
4393 possible because numbers could be growing instead of shrinking
4394 in the implementation of Euclid's algorithm.
4397 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4398 sign of the number in question.
4400 Fix BN_is_word(a,w) to work correctly for w == 0.
4402 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4403 because its test if the absolute value of 'a' equals 'w'.
4404 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4405 it exists mostly for use in the implementations of BN_is_zero(),
4406 BN_is_one(), and BN_is_word().
4409 *) New function BN_swap.
4412 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4413 the exponentiation functions are more likely to produce reasonable
4414 results on negative inputs.
4417 *) Change BN_mod_mul so that the result is always non-negative.
4418 Previously, it could be negative if one of the factors was negative;
4419 I don't think anyone really wanted that behaviour.
4422 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4423 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4424 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4425 and add new functions:
4434 BN_mod_lshift1_quick
4438 These functions always generate non-negative results.
4440 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4441 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4443 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4444 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4445 be reduced modulo m.
4446 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4449 The following entry accidentily appeared in the CHANGES file
4450 distributed with OpenSSL 0.9.7. The modifications described in
4451 it do *not* apply to OpenSSL 0.9.7.
4453 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4454 was actually never needed) and in BN_mul(). The removal in BN_mul()
4455 required a small change in bn_mul_part_recursive() and the addition
4456 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4457 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4458 bn_sub_words() and bn_add_words() except they take arrays with
4463 *) In 'openssl passwd', verify passwords read from the terminal
4464 unless the '-salt' option is used (which usually means that
4465 verification would just waste user's time since the resulting
4466 hash is going to be compared with some given password hash)
4467 or the new '-noverify' option is used.
4469 This is an incompatible change, but it does not affect
4470 non-interactive use of 'openssl passwd' (passwords on the command
4471 line, '-stdin' option, '-in ...' option) and thus should not
4475 *) Remove all references to RSAref, since there's no more need for it.
4478 *) Make DSO load along a path given through an environment variable
4479 (SHLIB_PATH) with shl_load().
4482 *) Constify the ENGINE code as a result of BIGNUM constification.
4483 Also constify the RSA code and most things related to it. In a
4484 few places, most notable in the depth of the ASN.1 code, ugly
4485 casts back to non-const were required (to be solved at a later
4489 *) Make it so the openssl application has all engines loaded by default.
4492 *) Constify the BIGNUM routines a little more.
4495 *) Add the following functions:
4497 ENGINE_load_cswift()
4499 ENGINE_load_atalla()
4501 ENGINE_load_builtin_engines()
4503 That way, an application can itself choose if external engines that
4504 are built-in in OpenSSL shall ever be used or not. The benefit is
4505 that applications won't have to be linked with libdl or other dso
4506 libraries unless it's really needed.
4508 Changed 'openssl engine' to load all engines on demand.
4509 Changed the engine header files to avoid the duplication of some
4510 declarations (they differed!).
4513 *) 'openssl engine' can now list capabilities.
4516 *) Better error reporting in 'openssl engine'.
4519 *) Never call load_dh_param(NULL) in s_server.
4522 *) Add engine application. It can currently list engines by name and
4523 identity, and test if they are actually available.
4526 *) Improve RPM specification file by forcing symbolic linking and making
4527 sure the installed documentation is also owned by root.root.
4528 [Damien Miller <djm@mindrot.org>]
4530 *) Give the OpenSSL applications more possibilities to make use of
4531 keys (public as well as private) handled by engines.
4534 *) Add OCSP code that comes from CertCo.
4537 *) Add VMS support for the Rijndael code.
4540 *) Added untested support for Nuron crypto accelerator.
4543 *) Add support for external cryptographic devices. This code was
4544 previously distributed separately as the "engine" branch.
4545 [Geoff Thorpe, Richard Levitte]
4547 *) Rework the filename-translation in the DSO code. It is now possible to
4548 have far greater control over how a "name" is turned into a filename
4549 depending on the operating environment and any oddities about the
4550 different shared library filenames on each system.
4553 *) Support threads on FreeBSD-elf in Configure.
4556 *) Fix for SHA1 assembly problem with MASM: it produces
4557 warnings about corrupt line number information when assembling
4558 with debugging information. This is caused by the overlapping
4560 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4563 NCONF_get_number() has no error checking at all. As a replacement,
4564 NCONF_get_number_e() is defined (_e for "error checking") and is
4565 promoted strongly. The old NCONF_get_number is kept around for
4566 binary backward compatibility.
4567 Make it possible for methods to load from something other than a BIO,
4568 by providing a function pointer that is given a name instead of a BIO.
4569 For example, this could be used to load configuration data from an
4573 *) Fix for non blocking accept BIOs. Added new I/O special reason
4574 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4575 with non blocking I/O was not possible because no retry code was
4576 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4580 *) Added the beginnings of Rijndael support.
4583 *) Fix for bug in DirectoryString mask setting. Add support for
4584 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4585 to allow certificate printing to more controllable, additional
4586 'certopt' option to 'x509' to allow new printing options to be
4590 *) Clean old EAY MD5 hack from e_os.h.
4593 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4595 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4596 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4597 [Joe Orton, Steve Henson]
4599 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4601 *) Fix additional bug revealed by the NISCC test suite:
4603 Stop bug triggering large recursion when presented with
4604 certain ASN.1 tags (CVE-2003-0851)
4607 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4609 *) Fix various bugs revealed by running the NISCC test suite:
4611 Stop out of bounds reads in the ASN1 code when presented with
4612 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4614 If verify callback ignores invalid public key errors don't try to check
4615 certificate signature with the NULL public key.
4619 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4620 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4624 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4625 extra data after the compression methods not only for TLS 1.0
4626 but also for SSL 3.0 (as required by the specification).
4627 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4629 *) Change X509_certificate_type() to mark the key as exported/exportable
4630 when it's 512 *bits* long, not 512 bytes.
4633 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4635 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4636 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4637 a protocol version number mismatch like a decryption error
4638 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4641 *) Turn on RSA blinding by default in the default implementation
4642 to avoid a timing attack. Applications that don't want it can call
4643 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4644 They would be ill-advised to do so in most cases.
4645 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4647 *) Change RSA blinding code so that it works when the PRNG is not
4648 seeded (in this case, the secret RSA exponent is abused as
4649 an unpredictable seed -- if it is not unpredictable, there
4650 is no point in blinding anyway). Make RSA blinding thread-safe
4651 by remembering the creator's thread ID in rsa->blinding and
4652 having all other threads use local one-time blinding factors
4653 (this requires more computation than sharing rsa->blinding, but
4654 avoids excessive locking; and if an RSA object is not shared
4655 between threads, blinding will still be very fast).
4658 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4660 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4661 via timing by performing a MAC computation even if incorrrect
4662 block cipher padding has been found. This is a countermeasure
4663 against active attacks where the attacker has to distinguish
4664 between bad padding and a MAC verification error. (CVE-2003-0078)
4666 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4667 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4668 Martin Vuagnoux (EPFL, Ilion)]
4670 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4672 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4673 memory from it's contents. This is done with a counter that will
4674 place alternating values in each byte. This can be used to solve
4675 two issues: 1) the removal of calls to memset() by highly optimizing
4676 compilers, and 2) cleansing with other values than 0, since those can
4677 be read through on certain media, for example a swap space on disk.
4680 *) Bugfix: client side session caching did not work with external caching,
4681 because the session->cipher setting was not restored when reloading
4682 from the external cache. This problem was masked, when
4683 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4684 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4687 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4688 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4689 [Zeev Lieber <zeev-l@yahoo.com>]
4691 *) Undo an undocumented change introduced in 0.9.6e which caused
4692 repeated calls to OpenSSL_add_all_ciphers() and
4693 OpenSSL_add_all_digests() to be ignored, even after calling
4697 *) Change the default configuration reader to deal with last line not
4698 being properly terminated.
4701 *) Change X509_NAME_cmp() so it applies the special rules on handling
4702 DN values that are of type PrintableString, as well as RDNs of type
4703 emailAddress where the value has the type ia5String.
4704 [stefank@valicert.com via Richard Levitte]
4706 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4707 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4708 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4709 the bitwise-OR of the two for use by the majority of applications
4710 wanting this behaviour, and update the docs. The documented
4711 behaviour and actual behaviour were inconsistent and had been
4712 changing anyway, so this is more a bug-fix than a behavioural
4714 [Geoff Thorpe, diagnosed by Nadav Har'El]
4716 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4717 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4720 *) Fix initialization code race conditions in
4721 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4722 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4723 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4724 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4725 ssl2_get_cipher_by_char(),
4726 ssl3_get_cipher_by_char().
4727 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4729 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4730 the cached sessions are flushed, as the remove_cb() might use ex_data
4731 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4732 (see [openssl.org #212]).
4733 [Geoff Thorpe, Lutz Jaenicke]
4735 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4736 length, instead of the encoding length to d2i_ASN1_OBJECT.
4739 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4741 *) [In 0.9.6g-engine release:]
4742 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4743 [Lynn Gazis <lgazis@rainbow.com>]
4745 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4747 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4748 and get fix the header length calculation.
4749 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4750 Alon Kantor <alonk@checkpoint.com> (and others),
4753 *) Use proper error handling instead of 'assertions' in buffer
4754 overflow checks added in 0.9.6e. This prevents DoS (the
4755 assertions could call abort()).
4756 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4758 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4760 *) Add various sanity checks to asn1_get_length() to reject
4761 the ASN1 length bytes if they exceed sizeof(long), will appear
4762 negative or the content length exceeds the length of the
4764 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4766 *) Fix cipher selection routines: ciphers without encryption had no flags
4767 for the cipher strength set and where therefore not handled correctly
4768 by the selection routines (PR #130).
4771 *) Fix EVP_dsa_sha macro.
4775 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4776 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4777 that was added in OpenSSL 0.9.6d.
4779 As the countermeasure turned out to be incompatible with some
4780 broken SSL implementations, the new option is part of SSL_OP_ALL.
4781 SSL_OP_ALL is usually employed when compatibility with weird SSL
4782 implementations is desired (e.g. '-bugs' option to 's_client' and
4783 's_server'), so the new option is automatically set in many
4787 *) Changes in security patch:
4789 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4790 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4791 Air Force Materiel Command, USAF, under agreement number
4794 *) Add various sanity checks to asn1_get_length() to reject
4795 the ASN1 length bytes if they exceed sizeof(long), will appear
4796 negative or the content length exceeds the length of the
4797 supplied buffer. (CVE-2002-0659)
4798 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4800 *) Assertions for various potential buffer overflows, not known to
4802 [Ben Laurie (CHATS)]
4804 *) Various temporary buffers to hold ASCII versions of integers were
4805 too small for 64 bit platforms. (CVE-2002-0655)
4806 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4808 *) Remote buffer overflow in SSL3 protocol - an attacker could
4809 supply an oversized session ID to a client. (CVE-2002-0656)
4810 [Ben Laurie (CHATS)]
4812 *) Remote buffer overflow in SSL2 protocol - an attacker could
4813 supply an oversized client master key. (CVE-2002-0656)
4814 [Ben Laurie (CHATS)]
4816 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4818 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4819 encoded as NULL) with id-dsa-with-sha1.
4820 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4822 *) Check various X509_...() return values in apps/req.c.
4823 [Nils Larsch <nla@trustcenter.de>]
4825 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4826 an end-of-file condition would erronously be flagged, when the CRLF
4827 was just at the end of a processed block. The bug was discovered when
4828 processing data through a buffering memory BIO handing the data to a
4829 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4830 <ptsekov@syntrex.com> and Nedelcho Stanev.
4833 *) Implement a countermeasure against a vulnerability recently found
4834 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4835 before application data chunks to avoid the use of known IVs
4836 with data potentially chosen by the attacker.
4839 *) Fix length checks in ssl3_get_client_hello().
4842 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4843 to prevent ssl3_read_internal() from incorrectly assuming that
4844 ssl3_read_bytes() found application data while handshake
4845 processing was enabled when in fact s->s3->in_read_app_data was
4846 merely automatically cleared during the initial handshake.
4847 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4849 *) Fix object definitions for Private and Enterprise: they were not
4850 recognized in their shortname (=lowercase) representation. Extend
4851 obj_dat.pl to issue an error when using undefined keywords instead
4852 of silently ignoring the problem (Svenning Sorensen
4853 <sss@sss.dnsalias.net>).
4856 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4857 generators, i.e. generators other than 2 and 5. (Previously, the
4858 code did not properly initialise the 'add' and 'rem' values to
4859 BN_generate_prime().)
4861 In the new general case, we do not insist that 'generator' is
4862 actually a primitive root: This requirement is rather pointless;
4863 a generator of the order-q subgroup is just as good, if not
4867 *) Map new X509 verification errors to alerts. Discovered and submitted by
4868 Tom Wu <tom@arcot.com>.
4871 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4872 returning non-zero before the data has been completely received
4873 when using non-blocking I/O.
4874 [Bodo Moeller; problem pointed out by John Hughes]
4876 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4877 [Ben Laurie, Lutz Jaenicke]
4879 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4880 Yoram Zahavi <YoramZ@gilian.com>).
4883 *) Add information about CygWin 1.3 and on, and preserve proper
4884 configuration for the versions before that.
4885 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4887 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4888 check whether we deal with a copy of a session and do not delete from
4889 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4890 <izhar@checkpoint.com>.
4893 *) Do not store session data into the internal session cache, if it
4894 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4895 flag is set). Proposed by Aslam <aslam@funk.com>.
4898 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4902 *) [In 0.9.6d-engine release:]
4903 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4904 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4906 *) Add the configuration target linux-s390x.
4907 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4909 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4910 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4911 variable as an indication that a ClientHello message has been
4912 received. As the flag value will be lost between multiple
4913 invocations of ssl3_accept when using non-blocking I/O, the
4914 function may not be aware that a handshake has actually taken
4915 place, thus preventing a new session from being added to the
4918 To avoid this problem, we now set s->new_session to 2 instead of
4919 using a local variable.
4920 [Lutz Jaenicke, Bodo Moeller]
4922 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4923 if the SSL_R_LENGTH_MISMATCH error is detected.
4924 [Geoff Thorpe, Bodo Moeller]
4926 *) New 'shared_ldflag' column in Configure platform table.
4929 *) Fix EVP_CIPHER_mode macro.
4930 ["Dan S. Camper" <dan@bti.net>]
4932 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4933 type, we must throw them away by setting rr->length to 0.
4934 [D P Chang <dpc@qualys.com>]
4936 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4938 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4939 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4940 worked incorrectly for those cases where range = 10..._2 and
4941 3*range is two bits longer than range.)
4944 *) Only add signing time to PKCS7 structures if it is not already
4948 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4949 OBJ_ld_ce should be OBJ_id_ce.
4950 Also some ip-pda OIDs in crypto/objects/objects.txt were
4951 incorrect (cf. RFC 3039).
4952 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4954 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4955 returns early because it has nothing to do.
4956 [Andy Schneider <andy.schneider@bjss.co.uk>]
4958 *) [In 0.9.6c-engine release:]
4959 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4960 [Andy Schneider <andy.schneider@bjss.co.uk>]
4962 *) [In 0.9.6c-engine release:]
4963 Add support for Cryptographic Appliance's keyserver technology.
4964 (Use engine 'keyclient')
4965 [Cryptographic Appliances and Geoff Thorpe]
4967 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4968 is called via tools/c89.sh because arguments have to be
4969 rearranged (all '-L' options must appear before the first object
4971 [Richard Shapiro <rshapiro@abinitio.com>]
4973 *) [In 0.9.6c-engine release:]
4974 Add support for Broadcom crypto accelerator cards, backported
4976 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4978 *) [In 0.9.6c-engine release:]
4979 Add support for SureWare crypto accelerator cards from
4980 Baltimore Technologies. (Use engine 'sureware')
4981 [Baltimore Technologies and Mark Cox]
4983 *) [In 0.9.6c-engine release:]
4984 Add support for crypto accelerator cards from Accelerated
4985 Encryption Processing, www.aep.ie. (Use engine 'aep')
4986 [AEP Inc. and Mark Cox]
4988 *) Add a configuration entry for gcc on UnixWare.
4989 [Gary Benson <gbenson@redhat.com>]
4991 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4992 messages are stored in a single piece (fixed-length part and
4993 variable-length part combined) and fix various bugs found on the way.
4996 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4997 instead. BIO_gethostbyname() does not know what timeouts are
4998 appropriate, so entries would stay in cache even when they have
5000 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5002 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5003 faced with a pathologically small ClientHello fragment that does
5004 not contain client_version: Instead of aborting with an error,
5005 simply choose the highest available protocol version (i.e.,
5006 TLS 1.0 unless it is disabled). In practice, ClientHello
5007 messages are never sent like this, but this change gives us
5008 strictly correct behaviour at least for TLS.
5011 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5012 never resets s->method to s->ctx->method when called from within
5013 one of the SSL handshake functions.
5014 [Bodo Moeller; problem pointed out by Niko Baric]
5016 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5017 (sent using the client's version number) if client_version is
5018 smaller than the protocol version in use. Also change
5019 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5020 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5021 the client will at least see that alert.
5024 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5028 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5029 client receives HelloRequest while in a handshake.
5030 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5032 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5033 should end in 'break', not 'goto end' which circuments various
5034 cleanups done in state SSL_ST_OK. But session related stuff
5035 must be disabled for SSL_ST_OK in the case that we just sent a
5038 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5039 before just sending a HelloRequest.
5040 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5042 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5043 reveal whether illegal block cipher padding was found or a MAC
5044 verification error occured. (Neither SSLerr() codes nor alerts
5045 are directly visible to potential attackers, but the information
5046 may leak via logfiles.)
5048 Similar changes are not required for the SSL 2.0 implementation
5049 because the number of padding bytes is sent in clear for SSL 2.0,
5050 and the extra bytes are just ignored. However ssl/s2_pkt.c
5051 failed to verify that the purported number of padding bytes is in
5055 *) Add OpenUNIX-8 support including shared libraries
5056 (Boyd Lynn Gerber <gerberb@zenez.com>).
5059 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5060 'wristwatch attack' using huge encoding parameters (cf.
5061 James H. Manger's CRYPTO 2001 paper). Note that the
5062 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5063 encoding parameters and hence was not vulnerable.
5066 *) BN_sqr() bug fix.
5067 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5069 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5070 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5071 followed by modular reduction.
5072 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5074 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5075 equivalent based on BN_pseudo_rand() instead of BN_rand().
5078 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5079 This function was broken, as the check for a new client hello message
5080 to handle SGC did not allow these large messages.
5081 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5084 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5087 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5088 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5091 *) Rework the configuration and shared library support for Tru64 Unix.
5092 The configuration part makes use of modern compiler features and
5093 still retains old compiler behavior for those that run older versions
5094 of the OS. The shared library support part includes a variant that
5095 uses the RPATH feature, and is available through the special
5096 configuration target "alpha-cc-rpath", which will never be selected
5098 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5100 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5101 with the same message size as in ssl3_get_certificate_request().
5102 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5103 messages might inadvertently be reject as too long.
5104 [Petr Lampa <lampa@fee.vutbr.cz>]
5106 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5109 *) Modified SSL library such that the verify_callback that has been set
5110 specificly for an SSL object with SSL_set_verify() is actually being
5111 used. Before the change, a verify_callback set with this function was
5112 ignored and the verify_callback() set in the SSL_CTX at the time of
5113 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5114 to allow the necessary settings.
5117 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5118 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5119 done automatically (in contradiction to the requirements of the C
5120 standard). This made problems when used from OpenSSH.
5123 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5124 dh->length and always used
5126 BN_rand_range(priv_key, dh->p).
5128 BN_rand_range() is not necessary for Diffie-Hellman, and this
5129 specific range makes Diffie-Hellman unnecessarily inefficient if
5130 dh->length (recommended exponent length) is much smaller than the
5131 length of dh->p. We could use BN_rand_range() if the order of
5132 the subgroup was stored in the DH structure, but we only have
5137 BN_rand(priv_key, l, ...)
5139 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5145 RSA_eay_public_encrypt
5146 RSA_eay_private_decrypt
5147 RSA_eay_private_encrypt (signing)
5148 RSA_eay_public_decrypt (signature verification)
5150 (default implementations for RSA_public_encrypt,
5151 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5152 always reject numbers >= n.
5155 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5156 to synchronize access to 'locking_thread'. This is necessary on
5157 systems where access to 'locking_thread' (an 'unsigned long'
5158 variable) is not atomic.
5161 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5162 *before* setting the 'crypto_lock_rand' flag. The previous code had
5163 a race condition if 0 is a valid thread ID.
5164 [Travis Vitek <vitek@roguewave.com>]
5166 *) Add support for shared libraries under Irix.
5167 [Albert Chin-A-Young <china@thewrittenword.com>]
5169 *) Add configuration option to build on Linux on both big-endian and
5171 [Ralf Baechle <ralf@uni-koblenz.de>]
5173 *) Add the possibility to create shared libraries on HP-UX.
5176 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5178 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5179 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5180 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5181 PRNG state recovery was possible based on the output of
5182 one PRNG request appropriately sized to gain knowledge on
5183 'md' followed by enough consecutive 1-byte PRNG requests
5184 to traverse all of 'state'.
5186 1. When updating 'md_local' (the current thread's copy of 'md')
5187 during PRNG output generation, hash all of the previous
5188 'md_local' value, not just the half used for PRNG output.
5190 2. Make the number of bytes from 'state' included into the hash
5191 independent from the number of PRNG bytes requested.
5193 The first measure alone would be sufficient to avoid
5194 Markku-Juhani's attack. (Actually it had never occurred
5195 to me that the half of 'md_local' used for chaining was the
5196 half from which PRNG output bytes were taken -- I had always
5197 assumed that the secret half would be used.) The second
5198 measure makes sure that additional data from 'state' is never
5199 mixed into 'md_local' in small portions; this heuristically
5200 further strengthens the PRNG.
5203 *) Fix crypto/bn/asm/mips3.s.
5206 *) When only the key is given to "enc", the IV is undefined. Print out
5207 an error message in this case.
5210 *) Handle special case when X509_NAME is empty in X509 printing routines.
5213 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5214 positive and less than q.
5217 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5218 used: it isn't thread safe and the add_lock_callback should handle
5220 [Paul Rose <Paul.Rose@bridge.com>]
5222 *) Verify that incoming data obeys the block size in
5223 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5227 [Ulf Möller, Bodo Möller]
5229 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5230 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5231 when fixing the server behaviour for backwards-compatible 'client
5232 hello' messages. (Note that the attack is impractical against
5233 SSL 3.0 and TLS 1.0 anyway because length and version checking
5234 means that the probability of guessing a valid ciphertext is
5235 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5238 Before 0.9.5, the countermeasure (hide the error by generating a
5239 random 'decryption result') did not work properly because
5240 ERR_clear_error() was missing, meaning that SSL_get_error() would
5241 detect the supposedly ignored error.
5243 Both problems are now fixed.
5246 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5247 (previously it was 1024).
5250 *) Fix for compatibility mode trust settings: ignore trust settings
5251 unless some valid trust or reject settings are present.
5254 *) Fix for blowfish EVP: its a variable length cipher.
5257 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5258 parameters in DSA public key structures and return an error in the
5259 DSA routines if parameters are absent.
5262 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5263 in the current directory if neither $RANDFILE nor $HOME was set.
5264 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5265 caused some confusion to Windows users who haven't defined $HOME.
5266 Thus RAND_file_name() is changed again: e_os.h can define a
5267 DEFAULT_HOME, which will be used if $HOME is not set.
5268 For Windows, we use "C:"; on other platforms, we still require
5269 environment variables.
5271 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5272 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5273 having multiple threads call RAND_poll() concurrently.
5276 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5277 combination of a flag and a thread ID variable.
5278 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5279 flag), *other* threads can enter ssleay_add_bytes without obeying
5280 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5281 that they do not hold after the first thread unsets add_do_not_lock).
5284 *) Change bctest again: '-x' expressions are not available in all
5288 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5290 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5291 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5293 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5294 the default extension for executables, if any. Also, make the perl
5295 scripts that use symlink() to test if it really exists and use "cp"
5296 if it doesn't. All this made OpenSSL compilable and installable in
5300 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5301 If SEQUENCE is length is indefinite just set c->slen to the total
5302 amount of data available.
5303 [Steve Henson, reported by shige@FreeBSD.org]
5304 [This change does not apply to 0.9.7.]
5306 *) Change bctest to avoid here-documents inside command substitution
5307 (workaround for FreeBSD /bin/sh bug).
5308 For compatibility with Ultrix, avoid shell functions (introduced
5309 in the bctest version that searches along $PATH).
5312 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5313 with des_encrypt() defined on some operating systems, like Solaris
5317 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5318 On the Importance of Eliminating Errors in Cryptographic
5319 Computations, J. Cryptology 14 (2001) 2, 101-119,
5320 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5323 *) MIPS assembler BIGNUM division bug fix.
5326 *) Disabled incorrect Alpha assembler code.
5329 *) Fix PKCS#7 decode routines so they correctly update the length
5330 after reading an EOC for the EXPLICIT tag.
5332 [This change does not apply to 0.9.7.]
5334 *) Fix bug in PKCS#12 key generation routines. This was triggered
5335 if a 3DES key was generated with a 0 initial byte. Include
5336 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5337 (but broken) behaviour.
5340 *) Enhance bctest to search for a working bc along $PATH and print
5342 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5344 *) Fix memory leaks in err.c: free err_data string if necessary;
5345 don't write to the wrong index in ERR_set_error_data.
5348 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5352 *) Replace rdtsc with _emit statements for VC++ version 5.
5353 [Jeremy Cooper <jeremy@baymoo.org>]
5355 *) Make it possible to reuse SSLv2 sessions.
5358 *) In copy_email() check for >= 0 as a return value for
5359 X509_NAME_get_index_by_NID() since 0 is a valid index.
5360 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5362 *) Avoid coredump with unsupported or invalid public keys by checking if
5363 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5364 PKCS7_verify() fails with non detached data.
5367 *) Don't use getenv in library functions when run as setuid/setgid.
5368 New function OPENSSL_issetugid().
5371 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5372 due to incorrect handling of multi-threading:
5374 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5376 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5378 3. Count how many times MemCheck_off() has been called so that
5379 nested use can be treated correctly. This also avoids
5380 inband-signalling in the previous code (which relied on the
5381 assumption that thread ID 0 is impossible).
5384 *) Add "-rand" option also to s_client and s_server.
5387 *) Fix CPU detection on Irix 6.x.
5388 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5389 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5391 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5394 [This change does not apply to 0.9.7.]
5396 *) Use the cached encoding of an X509_NAME structure rather than
5397 copying it. This is apparently the reason for the libsafe "errors"
5398 but the code is actually correct.
5401 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5402 Bleichenbacher's DSA attack.
5403 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5404 to be set and top=0 forces the highest bit to be set; top=-1 is new
5405 and leaves the highest bit random.
5406 [Ulf Moeller, Bodo Moeller]
5408 *) In the NCONF_...-based implementations for CONF_... queries
5409 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5410 a temporary CONF structure with the data component set to NULL
5411 (which gives segmentation faults in lh_retrieve).
5412 Instead, use NULL for the CONF pointer in CONF_get_string and
5413 CONF_get_number (which may use environment variables) and directly
5414 return NULL from CONF_get_section.
5417 *) Fix potential buffer overrun for EBCDIC.
5420 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5421 keyUsage if basicConstraints absent for a CA.
5424 *) Make SMIME_write_PKCS7() write mail header values with a format that
5425 is more generally accepted (no spaces before the semicolon), since
5426 some programs can't parse those values properly otherwise. Also make
5427 sure BIO's that break lines after each write do not create invalid
5431 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5432 macros previously used would not encode an empty SEQUENCE OF
5433 and break the signature.
5435 [This change does not apply to 0.9.7.]
5437 *) Zero the premaster secret after deriving the master secret in
5441 *) Add some EVP_add_digest_alias registrations (as found in
5442 OpenSSL_add_all_digests()) to SSL_library_init()
5443 aka OpenSSL_add_ssl_algorithms(). This provides improved
5444 compatibility with peers using X.509 certificates
5445 with unconventional AlgorithmIdentifier OIDs.
5448 *) Fix for Irix with NO_ASM.
5449 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5451 *) ./config script fixes.
5452 [Ulf Moeller, Richard Levitte]
5454 *) Fix 'openssl passwd -1'.
5457 *) Change PKCS12_key_gen_asc() so it can cope with non null
5458 terminated strings whose length is passed in the passlen
5459 parameter, for example from PEM callbacks. This was done
5460 by adding an extra length parameter to asc2uni().
5461 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5463 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5464 call failed, free the DSA structure.
5467 *) Fix to uni2asc() to cope with zero length Unicode strings.
5468 These are present in some PKCS#12 files.
5471 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5472 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5473 when writing a 32767 byte record.
5474 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5476 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5477 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5479 (RSA objects have a reference count access to which is protected
5480 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5481 so they are meant to be shared between threads.)
5482 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5483 "Reddie, Steven" <Steven.Reddie@ca.com>]
5485 *) Fix a deadlock in CRYPTO_mem_leaks().
5488 *) Use better test patterns in bntest.
5491 *) rand_win.c fix for Borland C.
5494 *) BN_rshift bugfix for n == 0.
5497 *) Add a 'bctest' script that checks for some known 'bc' bugs
5498 so that 'make test' does not abort just because 'bc' is broken.
5501 *) Store verify_result within SSL_SESSION also for client side to
5502 avoid potential security hole. (Re-used sessions on the client side
5503 always resulted in verify_result==X509_V_OK, not using the original
5504 result of the server certificate verification.)
5507 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5508 SSL3_RT_APPLICATION_DATA, return 0.
5509 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5513 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5514 releases, have been re-implemented by renaming the previous
5515 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5516 and ssl3_read_internal, respectively, and adding 'peek' parameters
5517 to them. The new ssl[23]_{read,peek} functions are calls to
5518 ssl[23]_read_internal with the 'peek' flag set appropriately.
5519 A 'peek' parameter has also been added to ssl3_read_bytes, which
5520 does the actual work for ssl3_read_internal.
5523 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5524 the method-specific "init()" handler. Also clean up ex_data after
5525 calling the method-specific "finish()" handler. Previously, this was
5526 happening the other way round.
5529 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5530 The previous value, 12, was not always sufficient for BN_mod_exp().
5533 *) Make sure that shared libraries get the internal name engine with
5534 the full version number and not just 0. This should mark the
5535 shared libraries as not backward compatible. Of course, this should
5536 be changed again when we can guarantee backward binary compatibility.
5539 *) Fix typo in get_cert_by_subject() in by_dir.c
5540 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5542 *) Rework the system to generate shared libraries:
5544 - Make note of the expected extension for the shared libraries and
5545 if there is a need for symbolic links from for example libcrypto.so.0
5546 to libcrypto.so.0.9.7. There is extended info in Configure for
5549 - Make as few rebuilds of the shared libraries as possible.
5551 - Still avoid linking the OpenSSL programs with the shared libraries.
5553 - When installing, install the shared libraries separately from the
5557 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5559 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5560 and not in SSL_clear because the latter is also used by the
5561 accept/connect functions; previously, the settings made by
5562 SSL_set_read_ahead would be lost during the handshake.
5563 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5565 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5566 Previously, it would create entries for disableed algorithms no
5570 *) Added several new manual pages for SSL_* function.
5573 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5575 *) In ssl23_get_client_hello, generate an error message when faced
5576 with an initial SSL 3.0/TLS record that is too small to contain the
5577 first two bytes of the ClientHello message, i.e. client_version.
5578 (Note that this is a pathologic case that probably has never happened
5579 in real life.) The previous approach was to use the version number
5580 from the record header as a substitute; but our protocol choice
5581 should not depend on that one because it is not authenticated
5582 by the Finished messages.
5585 *) More robust randomness gathering functions for Windows.
5586 [Jeffrey Altman <jaltman@columbia.edu>]
5588 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5589 not set then we don't setup the error code for issuer check errors
5590 to avoid possibly overwriting other errors which the callback does
5591 handle. If an application does set the flag then we assume it knows
5592 what it is doing and can handle the new informational codes
5596 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5597 a general "ANY" type, as such it should be able to decode anything
5598 including tagged types. However it didn't check the class so it would
5599 wrongly interpret tagged types in the same way as their universal
5600 counterpart and unknown types were just rejected. Changed so that the
5601 tagged and unknown types are handled in the same way as a SEQUENCE:
5602 that is the encoding is stored intact. There is also a new type
5603 "V_ASN1_OTHER" which is used when the class is not universal, in this
5604 case we have no idea what the actual type is so we just lump them all
5608 *) On VMS, stdout may very well lead to a file that is written to
5609 in a record-oriented fashion. That means that every write() will
5610 write a separate record, which will be read separately by the
5611 programs trying to read from it. This can be very confusing.
5613 The solution is to put a BIO filter in the way that will buffer
5614 text until a linefeed is reached, and then write everything a
5615 line at a time, so every record written will be an actual line,
5616 not chunks of lines and not (usually doesn't happen, but I've
5617 seen it once) several lines in one record. BIO_f_linebuffer() is
5620 Currently, it's a VMS-only method, because that's where it has
5621 been tested well enough.
5624 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5625 it can return incorrect results.
5626 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5627 but it was in 0.9.6-beta[12].)
5630 *) Disable the check for content being present when verifying detached
5631 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5632 include zero length content when signing messages.
5635 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5636 BIO_ctrl (for BIO pairs).
5639 *) Add DSO method for VMS.
5642 *) Bug fix: Montgomery multiplication could produce results with the
5646 *) Add RPM specification openssl.spec and modify it to build three
5647 packages. The default package contains applications, application
5648 documentation and run-time libraries. The devel package contains
5649 include files, static libraries and function documentation. The
5650 doc package contains the contents of the doc directory. The original
5651 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5654 *) Add a large number of documentation files for many SSL routines.
5655 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5657 *) Add a configuration entry for Sony News 4.
5658 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5660 *) Don't set the two most significant bits to one when generating a
5661 random number < q in the DSA library.
5664 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5665 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5666 the underlying transport is blocking) if a handshake took place.
5667 (The default behaviour is needed by applications such as s_client
5668 and s_server that use select() to determine when to use SSL_read;
5669 but for applications that know in advance when to expect data, it
5670 just makes things more complicated.)
5673 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5677 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5678 work better on such systems.
5679 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5681 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5682 Update PKCS12_parse() so it copies the friendlyName and the
5683 keyid to the certificates aux info.
5686 *) Fix bug in PKCS7_verify() which caused an infinite loop
5687 if there was more than one signature.
5688 [Sven Uszpelkat <su@celocom.de>]
5690 *) Major change in util/mkdef.pl to include extra information
5691 about each symbol, as well as presentig variables as well
5692 as functions. This change means that there's n more need
5693 to rebuild the .num files when some algorithms are excluded.
5696 *) Allow the verify time to be set by an application,
5697 rather than always using the current time.
5700 *) Phase 2 verify code reorganisation. The certificate
5701 verify code now looks up an issuer certificate by a
5702 number of criteria: subject name, authority key id
5703 and key usage. It also verifies self signed certificates
5704 by the same criteria. The main comparison function is
5705 X509_check_issued() which performs these checks.
5707 Lot of changes were necessary in order to support this
5708 without completely rewriting the lookup code.
5710 Authority and subject key identifier are now cached.
5712 The LHASH 'certs' is X509_STORE has now been replaced
5713 by a STACK_OF(X509_OBJECT). This is mainly because an
5714 LHASH can't store or retrieve multiple objects with
5715 the same hash value.
5717 As a result various functions (which were all internal
5718 use only) have changed to handle the new X509_STORE
5719 structure. This will break anything that messed round
5720 with X509_STORE internally.
5722 The functions X509_STORE_add_cert() now checks for an
5723 exact match, rather than just subject name.
5725 The X509_STORE API doesn't directly support the retrieval
5726 of multiple certificates matching a given criteria, however
5727 this can be worked round by performing a lookup first
5728 (which will fill the cache with candidate certificates)
5729 and then examining the cache for matches. This is probably
5730 the best we can do without throwing out X509_LOOKUP
5731 entirely (maybe later...).
5733 The X509_VERIFY_CTX structure has been enhanced considerably.
5735 All certificate lookup operations now go via a get_issuer()
5736 callback. Although this currently uses an X509_STORE it
5737 can be replaced by custom lookups. This is a simple way
5738 to bypass the X509_STORE hackery necessary to make this
5739 work and makes it possible to use more efficient techniques
5740 in future. A very simple version which uses a simple
5741 STACK for its trusted certificate store is also provided
5742 using X509_STORE_CTX_trusted_stack().
5744 The verify_cb() and verify() callbacks now have equivalents
5745 in the X509_STORE_CTX structure.
5747 X509_STORE_CTX also has a 'flags' field which can be used
5748 to customise the verify behaviour.
5751 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5752 excludes S/MIME capabilities.
5755 *) When a certificate request is read in keep a copy of the
5756 original encoding of the signed data and use it when outputing
5757 again. Signatures then use the original encoding rather than
5758 a decoded, encoded version which may cause problems if the
5759 request is improperly encoded.
5762 *) For consistency with other BIO_puts implementations, call
5763 buffer_write(b, ...) directly in buffer_puts instead of calling
5766 In BIO_puts, increment b->num_write as in BIO_write.
5767 [Peter.Sylvester@EdelWeb.fr]
5769 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5770 BN_zero, we may not return a BIGNUM with an array consisting of
5774 *) Avoid calling abort() from within the library when problems are
5775 detected, except if preprocessor symbols have been defined
5776 (such as REF_CHECK, BN_DEBUG etc.).
5779 *) New openssl application 'rsautl'. This utility can be
5780 used for low level RSA operations. DER public key
5781 BIO/fp routines also added.
5784 *) New Configure entry and patches for compiling on QNX 4.
5785 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5787 *) A demo state-machine implementation was sponsored by
5788 Nuron (http://www.nuron.com/) and is now available in
5789 demos/state_machine.
5792 *) New options added to the 'dgst' utility for signature
5793 generation and verification.
5796 *) Unrecognized PKCS#7 content types are now handled via a
5797 catch all ASN1_TYPE structure. This allows unsupported
5798 types to be stored as a "blob" and an application can
5799 encode and decode it manually.
5802 *) Fix various signed/unsigned issues to make a_strex.c
5804 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5806 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5807 length if passed a buffer. ASN1_INTEGER_to_BN failed
5808 if passed a NULL BN and its argument was negative.
5809 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5811 *) Modification to PKCS#7 encoding routines to output definite
5812 length encoding. Since currently the whole structures are in
5813 memory there's not real point in using indefinite length
5814 constructed encoding. However if OpenSSL is compiled with
5815 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5818 *) Added BIO_vprintf() and BIO_vsnprintf().
5821 *) Added more prefixes to parse for in the the strings written
5822 through a logging bio, to cover all the levels that are available
5823 through syslog. The prefixes are now:
5825 PANIC, EMERG, EMR => LOG_EMERG
5826 ALERT, ALR => LOG_ALERT
5827 CRIT, CRI => LOG_CRIT
5828 ERROR, ERR => LOG_ERR
5829 WARNING, WARN, WAR => LOG_WARNING
5830 NOTICE, NOTE, NOT => LOG_NOTICE
5831 INFO, INF => LOG_INFO
5832 DEBUG, DBG => LOG_DEBUG
5834 and as before, if none of those prefixes are present at the
5835 beginning of the string, LOG_ERR is chosen.
5837 On Win32, the LOG_* levels are mapped according to this:
5839 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5840 LOG_WARNING => EVENTLOG_WARNING_TYPE
5841 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5845 *) Made it possible to reconfigure with just the configuration
5846 argument "reconf" or "reconfigure". The command line arguments
5847 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5848 and are retrieved from there when reconfiguring.
5852 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5854 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5857 *) The obj_dat.pl script was messing up the sorting of object
5858 names. The reason was that it compared the quoted version
5859 of strings as a result "OCSP" > "OCSP Signing" because
5860 " > SPACE. Changed script to store unquoted versions of
5861 names and add quotes on output. It was also omitting some
5862 names from the lookup table if they were given a default
5863 value (that is if SN is missing it is given the same
5864 value as LN and vice versa), these are now added on the
5865 grounds that if an object has a name we should be able to
5866 look it up. Finally added warning output when duplicate
5867 short or long names are found.
5870 *) Changes needed for Tandem NSK.
5871 [Scott Uroff <scott@xypro.com>]
5873 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5874 RSA_padding_check_SSLv23(), special padding was never detected
5875 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5876 version rollback attacks was not effective.
5878 In s23_clnt.c, don't use special rollback-attack detection padding
5879 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5880 client; similarly, in s23_srvr.c, don't do the rollback check if
5881 SSL 2.0 is the only protocol enabled in the server.
5884 *) Make it possible to get hexdumps of unprintable data with 'openssl
5885 asn1parse'. By implication, the functions ASN1_parse_dump() and
5886 BIO_dump_indent() are added.
5889 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5890 these print out strings and name structures based on various
5891 flags including RFC2253 support and proper handling of
5892 multibyte characters. Added options to the 'x509' utility
5893 to allow the various flags to be set.
5896 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5897 Also change the functions X509_cmp_current_time() and
5898 X509_gmtime_adj() work with an ASN1_TIME structure,
5899 this will enable certificates using GeneralizedTime in validity
5900 dates to be checked.
5903 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5904 negative public key encodings) on by default,
5905 NO_NEG_PUBKEY_BUG can be set to disable it.
5908 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5909 content octets. An i2c_ASN1_OBJECT is unnecessary because
5910 the encoding can be trivially obtained from the structure.
5913 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5914 not read locks (CRYPTO_r_[un]lock).
5917 *) A first attempt at creating official support for shared
5918 libraries through configuration. I've kept it so the
5919 default is static libraries only, and the OpenSSL programs
5920 are always statically linked for now, but there are
5921 preparations for dynamic linking in place.
5922 This has been tested on Linux and Tru64.
5925 *) Randomness polling function for Win9x, as described in:
5926 Peter Gutmann, Software Generation of Practically Strong
5930 *) Fix so PRNG is seeded in req if using an already existing
5934 *) New options to smime application. -inform and -outform
5935 allow alternative formats for the S/MIME message including
5936 PEM and DER. The -content option allows the content to be
5937 specified separately. This should allow things like Netscape
5938 form signing output easier to verify.
5941 *) Fix the ASN1 encoding of tags using the 'long form'.
5944 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5945 STRING types. These convert content octets to and from the
5946 underlying type. The actual tag and length octets are
5947 already assumed to have been read in and checked. These
5948 are needed because all other string types have virtually
5949 identical handling apart from the tag. By having versions
5950 of the ASN1 functions that just operate on content octets
5951 IMPLICIT tagging can be handled properly. It also allows
5952 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5953 and ASN1_INTEGER are identical apart from the tag.
5956 *) Change the handling of OID objects as follows:
5958 - New object identifiers are inserted in objects.txt, following
5959 the syntax given in objects.README.
5960 - objects.pl is used to process obj_mac.num and create a new
5962 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5965 This is currently kind of a hack, and the perl code in objects.pl
5966 isn't very elegant, but it works as I intended. The simplest way
5967 to check that it worked correctly is to look in obj_dat.h and
5968 check the array nid_objs and make sure the objects haven't moved
5969 around (this is important!). Additions are OK, as well as
5970 consistent name changes.
5973 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5976 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5977 The given file adds to whatever has already been seeded into the
5978 random pool through the RANDFILE configuration file option or
5979 environment variable, or the default random state file.
5982 *) mkstack.pl now sorts each macro group into lexical order.
5983 Previously the output order depended on the order the files
5984 appeared in the directory, resulting in needless rewriting
5988 *) Patches to make OpenSSL compile under Win32 again. Mostly
5989 work arounds for the VC++ problem that it treats func() as
5990 func(void). Also stripped out the parts of mkdef.pl that
5991 added extra typesafe functions: these no longer exist.
5994 *) Reorganisation of the stack code. The macros are now all
5995 collected in safestack.h . Each macro is defined in terms of
5996 a "stack macro" of the form SKM_<name>(type, a, b). The
5997 DEBUG_SAFESTACK is now handled in terms of function casts,
5998 this has the advantage of retaining type safety without the
5999 use of additional functions. If DEBUG_SAFESTACK is not defined
6000 then the non typesafe macros are used instead. Also modified the
6001 mkstack.pl script to handle the new form. Needs testing to see
6002 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6003 the default if no major problems. Similar behaviour for ASN1_SET_OF
6004 and PKCS12_STACK_OF.
6007 *) When some versions of IIS use the 'NET' form of private key the
6008 key derivation algorithm is different. Normally MD5(password) is
6009 used as a 128 bit RC4 key. In the modified case
6010 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6011 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6012 as the old Netscape_RSA functions except they have an additional
6013 'sgckey' parameter which uses the modified algorithm. Also added
6014 an -sgckey command line option to the rsa utility. Thanks to
6015 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6016 algorithm to openssl-dev.
6019 *) The evp_local.h macros were using 'c.##kname' which resulted in
6020 invalid expansion on some systems (SCO 5.0.5 for example).
6021 Corrected to 'c.kname'.
6022 [Phillip Porch <root@theporch.com>]
6024 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6025 a STACK of email addresses from a certificate or request, these look
6026 in the subject name and the subject alternative name extensions and
6027 omit any duplicate addresses.
6030 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6031 This makes DSA verification about 2 % faster.
6034 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6035 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6036 plus overhead for 1024 bit moduli).
6037 This makes exponentiations about 0.5 % faster for 1024 bit
6038 exponents (as measured by "openssl speed rsa2048").
6041 *) Rename memory handling macros to avoid conflicts with other
6043 Malloc => OPENSSL_malloc
6044 Malloc_locked => OPENSSL_malloc_locked
6045 Realloc => OPENSSL_realloc
6046 Free => OPENSSL_free
6049 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6050 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6053 *) CygWin32 support.
6054 [John Jarvie <jjarvie@newsguy.com>]
6056 *) The type-safe stack code has been rejigged. It is now only compiled
6057 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6058 by default all type-specific stack functions are "#define"d back to
6059 standard stack functions. This results in more streamlined output
6060 but retains the type-safety checking possibilities of the original
6064 *) The STACK code has been cleaned up, and certain type declarations
6065 that didn't make a lot of sense have been brought in line. This has
6066 also involved a cleanup of sorts in safestack.h to more correctly
6067 map type-safe stack functions onto their plain stack counterparts.
6068 This work has also resulted in a variety of "const"ifications of
6069 lots of the code, especially "_cmp" operations which should normally
6070 be prototyped with "const" parameters anyway.
6073 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6074 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6075 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6076 where all of 'md' is used each time the PRNG is used, but 'state'
6077 is used only indexed by a cyclic counter. As entropy may not be
6078 well distributed from the beginning, 'md' is important as a
6079 chaining variable. However, the output function chains only half
6080 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6081 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6082 in all of 'state' being rewritten, with the new values depending
6083 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6086 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6087 the handshake is continued after ssl_verify_cert_chain();
6088 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6089 can lead to 'unexplainable' connection aborts later.
6090 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6092 *) Major EVP API cipher revision.
6093 Add hooks for extra EVP features. This allows various cipher
6094 parameters to be set in the EVP interface. Support added for variable
6095 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6096 setting of RC2 and RC5 parameters.
6098 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6101 Remove lots of duplicated code from the EVP library. For example *every*
6102 cipher init() function handles the 'iv' in the same way according to the
6103 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6104 for CFB and OFB modes they zero ctx->num.
6106 New functionality allows removal of S/MIME code RC2 hack.
6108 Most of the routines have the same form and so can be declared in terms
6111 By shifting this to the top level EVP_CipherInit() it can be removed from
6112 all individual ciphers. If the cipher wants to handle IVs or keys
6113 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6116 Change lots of functions like EVP_EncryptUpdate() to now return a
6117 value: although software versions of the algorithms cannot fail
6118 any installed hardware versions can.
6121 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6122 this option is set, tolerate broken clients that send the negotiated
6123 protocol version number instead of the requested protocol version
6127 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6128 i.e. non-zero for export ciphersuites, zero otherwise.
6129 Previous versions had this flag inverted, inconsistent with
6130 rsa_tmp_cb (..._TMP_RSA_CB).
6131 [Bodo Moeller; problem reported by Amit Chopra]
6133 *) Add missing DSA library text string. Work around for some IIS
6134 key files with invalid SEQUENCE encoding.
6137 *) Add a document (doc/standards.txt) that list all kinds of standards
6138 and so on that are implemented in OpenSSL.
6141 *) Enhance c_rehash script. Old version would mishandle certificates
6142 with the same subject name hash and wouldn't handle CRLs at all.
6143 Added -fingerprint option to crl utility, to support new c_rehash
6147 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6150 *) Fix for SSL server purpose checking. Server checking was
6151 rejecting certificates which had extended key usage present
6152 but no ssl client purpose.
6153 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6155 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6156 is a little unclear about how a blank password is handled.
6157 Since the password in encoded as a BMPString with terminating
6158 double NULL a zero length password would end up as just the
6159 double NULL. However no password at all is different and is
6160 handled differently in the PKCS#12 key generation code. NS
6161 treats a blank password as zero length. MSIE treats it as no
6162 password on export: but it will try both on import. We now do
6163 the same: PKCS12_parse() tries zero length and no password if
6164 the password is set to "" or NULL (NULL is now a valid password:
6165 it wasn't before) as does the pkcs12 application.
6168 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6169 perror when PEM_read_bio_X509_REQ fails, the error message must
6170 be obtained from the error queue.
6173 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6174 it in ERR_remove_state if appropriate, and change ERR_get_state
6175 accordingly to avoid race conditions (this is necessary because
6176 thread_hash is no longer constant once set).
6179 *) Bugfix for linux-elf makefile.one.
6182 *) RSA_get_default_method() will now cause a default
6183 RSA_METHOD to be chosen if one doesn't exist already.
6184 Previously this was only set during a call to RSA_new()
6185 or RSA_new_method(NULL) meaning it was possible for
6186 RSA_get_default_method() to return NULL.
6189 *) Added native name translation to the existing DSO code
6190 that will convert (if the flag to do so is set) filenames
6191 that are sufficiently small and have no path information
6192 into a canonical native form. Eg. "blah" converted to
6193 "libblah.so" or "blah.dll" etc.
6196 *) New function ERR_error_string_n(e, buf, len) which is like
6197 ERR_error_string(e, buf), but writes at most 'len' bytes
6198 including the 0 terminator. For ERR_error_string_n, 'buf'
6200 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6202 *) CONF library reworked to become more general. A new CONF
6203 configuration file reader "class" is implemented as well as a
6204 new functions (NCONF_*, for "New CONF") to handle it. The now
6205 old CONF_* functions are still there, but are reimplemented to
6206 work in terms of the new functions. Also, a set of functions
6207 to handle the internal storage of the configuration data is
6208 provided to make it easier to write new configuration file
6209 reader "classes" (I can definitely see something reading a
6210 configuration file in XML format, for example), called _CONF_*,
6211 or "the configuration storage API"...
6213 The new configuration file reading functions are:
6215 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6216 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6218 NCONF_default, NCONF_WIN32
6220 NCONF_dump_fp, NCONF_dump_bio
6222 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6223 NCONF_new creates a new CONF object. This works in the same way
6224 as other interfaces in OpenSSL, like the BIO interface.
6225 NCONF_dump_* dump the internal storage of the configuration file,
6226 which is useful for debugging. All other functions take the same
6227 arguments as the old CONF_* functions wth the exception of the
6228 first that must be a `CONF *' instead of a `LHASH *'.
6230 To make it easer to use the new classes with the old CONF_* functions,
6231 the function CONF_set_default_method is provided.
6234 *) Add '-tls1' option to 'openssl ciphers', which was already
6235 mentioned in the documentation but had not been implemented.
6236 (This option is not yet really useful because even the additional
6237 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6240 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6241 OpenSSL-based applications) load shared libraries and bind to
6242 them in a portable way.
6243 [Geoff Thorpe, with contributions from Richard Levitte]
6245 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6247 *) Make sure _lrotl and _lrotr are only used with MSVC.
6249 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6250 (the default implementation of RAND_status).
6252 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6253 to '-clrext' (= clear extensions), as intended and documented.
6254 [Bodo Moeller; inconsistency pointed out by Michael Attili
6257 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6258 was larger than the MD block size.
6259 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6261 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6262 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6263 using the passed key: if the passed key was a private key the result
6264 of X509_print(), for example, would be to print out all the private key
6268 *) des_quad_cksum() byte order bug fix.
6269 [Ulf Möller, using the problem description in krb4-0.9.7, where
6270 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6272 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6274 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6276 *) For easily testing in shell scripts whether some command
6277 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6278 returns with exit code 0 iff no command of the given name is available.
6279 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6280 the output goes to stdout and nothing is printed to stderr.
6281 Additional arguments are always ignored.
6283 Since for each cipher there is a command of the same name,
6284 the 'no-cipher' compilation switches can be tested this way.
6286 ('openssl no-XXX' is not able to detect pseudo-commands such
6287 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6290 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6293 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6294 is set; it will be thrown away anyway because each handshake creates
6296 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6297 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6298 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6299 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6302 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6303 'Q' and 'R' lose their special meanings (quit/renegotiate).
6304 This is part of what -quiet does; unlike -quiet, -ign_eof
6305 does not suppress any output.
6308 *) Add compatibility options to the purpose and trust code. The
6309 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6310 accepts a certificate or CA, this was the previous behaviour,
6311 with all the associated security issues.
6313 X509_TRUST_COMPAT is the old trust behaviour: only and
6314 automatically trust self signed roots in certificate store. A
6315 new trust setting X509_TRUST_DEFAULT is used to specify that
6316 a purpose has no associated trust setting and it should instead
6317 use the value in the default purpose.
6320 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6321 and fix a memory leak.
6324 *) In util/mkerr.pl (which implements 'make errors'), preserve
6325 reason strings from the previous version of the .c file, as
6326 the default to have only downcase letters (and digits) in
6327 automatically generated reasons codes is not always appropriate.
6330 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6331 using strerror. Previously, ERR_reason_error_string() returned
6332 library names as reason strings for SYSerr; but SYSerr is a special
6333 case where small numbers are errno values, not library numbers.
6336 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6337 converts DSA parameters into DH parameters. (When creating parameters,
6338 DSA_generate_parameters is used.)
6341 *) Include 'length' (recommended exponent length) in C code generated
6342 by 'openssl dhparam -C'.
6345 *) The second argument to set_label in perlasm was already being used
6346 so couldn't be used as a "file scope" flag. Moved to third argument
6350 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6351 instead of RAND_bytes for encryption IVs and salts.
6354 *) Include RAND_status() into RAND_METHOD instead of implementing
6355 it only for md_rand.c Otherwise replacing the PRNG by calling
6356 RAND_set_rand_method would be impossible.
6359 *) Don't let DSA_generate_key() enter an infinite loop if the random
6360 number generation fails.
6363 *) New 'rand' application for creating pseudo-random output.
6366 *) Added configuration support for Linux/IA64
6367 [Rolf Haberrecker <rolf@suse.de>]
6369 *) Assembler module support for Mingw32.
6372 *) Shared library support for HPUX (in shlib/).
6373 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6375 *) Shared library support for Solaris gcc.
6376 [Lutz Behnke <behnke@trustcenter.de>]
6378 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6380 *) PKCS7_encrypt() was adding text MIME headers twice because they
6381 were added manually and by SMIME_crlf_copy().
6384 *) In bntest.c don't call BN_rand with zero bits argument.
6385 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6387 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6388 case was implemented. This caused BN_div_recp() to fail occasionally.
6391 *) Add an optional second argument to the set_label() in the perl
6392 assembly language builder. If this argument exists and is set
6393 to 1 it signals that the assembler should use a symbol whose
6394 scope is the entire file, not just the current function. This
6395 is needed with MASM which uses the format label:: for this scope.
6396 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6398 *) Change the ASN1 types so they are typedefs by default. Before
6399 almost all types were #define'd to ASN1_STRING which was causing
6400 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6404 *) Change names of new functions to the new get1/get0 naming
6405 convention: After 'get1', the caller owns a reference count
6406 and has to call ..._free; 'get0' returns a pointer to some
6407 data structure without incrementing reference counters.
6408 (Some of the existing 'get' functions increment a reference
6409 counter, some don't.)
6410 Similarly, 'set1' and 'add1' functions increase reference
6411 counters or duplicate objects.
6414 *) Allow for the possibility of temp RSA key generation failure:
6415 the code used to assume it always worked and crashed on failure.
6418 *) Fix potential buffer overrun problem in BIO_printf().
6419 [Ulf Möller, using public domain code by Patrick Powell; problem
6420 pointed out by David Sacerdote <das33@cornell.edu>]
6422 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6423 RAND_egd() and RAND_status(). In the command line application,
6424 the EGD socket can be specified like a seed file using RANDFILE
6428 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6429 Some CAs (e.g. Verisign) distribute certificates in this form.
6432 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6433 list to exclude them. This means that no special compilation option
6434 is needed to use anonymous DH: it just needs to be included in the
6438 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6439 EVP_MD_type. The old functionality is available in a new macro called
6440 EVP_MD_md(). Change code that uses it and update docs.
6443 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6444 where the 'void *' argument is replaced by a function pointer argument.
6445 Previously 'void *' was abused to point to functions, which works on
6446 many platforms, but is not correct. As these functions are usually
6447 called by macros defined in OpenSSL header files, most source code
6448 should work without changes.
6451 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6452 sections with information on -D... compiler switches used for
6453 compiling the library so that applications can see them. To enable
6454 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6455 must be defined. E.g.,
6456 #define OPENSSL_ALGORITHM_DEFINES
6457 #include <openssl/opensslconf.h>
6458 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6459 [Richard Levitte, Ulf and Bodo Möller]
6461 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6465 *) Change the 'other' type in certificate aux info to a STACK_OF
6466 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6467 the required ASN1 format: arbitrary types determined by an OID.
6470 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6471 argument to 'req'. This is not because the function is newer or
6472 better than others it just uses the work 'NEW' in the certificate
6473 request header lines. Some software needs this.
6476 *) Reorganise password command line arguments: now passwords can be
6477 obtained from various sources. Delete the PEM_cb function and make
6478 it the default behaviour: i.e. if the callback is NULL and the
6479 usrdata argument is not NULL interpret it as a null terminated pass
6480 phrase. If usrdata and the callback are NULL then the pass phrase
6481 is prompted for as usual.
6484 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6485 the support is automatically enabled. The resulting binaries will
6486 autodetect the card and use it if present.
6487 [Ben Laurie and Compaq Inc.]
6489 *) Work around for Netscape hang bug. This sends certificate request
6490 and server done in one record. Since this is perfectly legal in the
6491 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6492 the bugs/SSLv3 entry for more info.
6495 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6498 *) Add -rand argument to smime and pkcs12 applications and read/write
6502 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6505 *) Add command line password options to the remaining applications.
6508 *) Bug fix for BN_div_recp() for numerators with an even number of
6512 *) More tests in bntest.c, and changed test_bn output.
6515 *) ./config recognizes MacOS X now.
6518 *) Bug fix for BN_div() when the first words of num and divsor are
6519 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6522 *) Add support for various broken PKCS#8 formats, and command line
6523 options to produce them.
6526 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6527 get temporary BIGNUMs from a BN_CTX.
6530 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6534 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6535 include a #define from the old name to the new. The original intent
6536 was that statically linked binaries could for example just call
6537 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6538 link with digests. This never worked becayse SSLeay_add_all_digests()
6539 and SSLeay_add_all_ciphers() were in the same source file so calling
6540 one would link with the other. They are now in separate source files.
6543 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6546 *) Use a less unusual form of the Miller-Rabin primality test (it used
6547 a binary algorithm for exponentiation integrated into the Miller-Rabin
6548 loop, our standard modexp algorithms are faster).
6551 *) Support for the EBCDIC character set completed.
6552 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6554 *) Source code cleanups: use const where appropriate, eliminate casts,
6555 use void * instead of char * in lhash.
6558 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6559 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6560 this the server could overwrite ephemeral keys that the client
6564 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6565 using 50 iterations of the Rabin-Miller test.
6567 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6568 iterations of the Rabin-Miller test as required by the appendix
6569 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6570 As BN_is_prime_fasttest includes trial division, DSA parameter
6571 generation becomes much faster.
6573 This implies a change for the callback functions in DSA_is_prime
6574 and DSA_generate_parameters: The callback function is called once
6575 for each positive witness in the Rabin-Miller test, not just
6576 occasionally in the inner loop; and the parameters to the
6577 callback function now provide an iteration count for the outer
6578 loop rather than for the current invocation of the inner loop.
6579 DSA_generate_parameters additionally can call the callback
6580 function with an 'iteration count' of -1, meaning that a
6581 candidate has passed the trial division test (when q is generated
6582 from an application-provided seed, trial division is skipped).
6585 *) New function BN_is_prime_fasttest that optionally does trial
6586 division before starting the Rabin-Miller test and has
6587 an additional BN_CTX * argument (whereas BN_is_prime always
6588 has to allocate at least one BN_CTX).
6589 'callback(1, -1, cb_arg)' is called when a number has passed the
6590 trial division stage.
6593 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6597 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6600 *) New function BN_pseudo_rand().
6603 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6604 bignum version of BN_from_montgomery() with the working code from
6605 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6609 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6610 made it impossible to use the same SSL_SESSION data structure in
6611 SSL2 clients in multiple threads.
6614 *) The return value of RAND_load_file() no longer counts bytes obtained
6615 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6616 to seed the PRNG (previously an explicit byte count was required).
6617 [Ulf Möller, Bodo Möller]
6619 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6620 used (char *) instead of (void *) and had casts all over the place.
6623 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6626 *) Retain source code compatibility for BN_prime_checks macro:
6627 BN_is_prime(..., BN_prime_checks, ...) now uses
6628 BN_prime_checks_for_size to determine the appropriate number of
6629 Rabin-Miller iterations.
6632 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6633 DH_CHECK_P_NOT_SAFE_PRIME.
6634 (Check if this is true? OpenPGP calls them "strong".)
6637 *) Merge the functionality of "dh" and "gendh" programs into a new program
6638 "dhparam". The old programs are retained for now but will handle DH keys
6639 (instead of parameters) in future.
6642 *) Make the ciphers, s_server and s_client programs check the return values
6643 when a new cipher list is set.
6646 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6647 ciphers. Before when the 56bit ciphers were enabled the sorting was
6650 The syntax for the cipher sorting has been extended to support sorting by
6651 cipher-strength (using the strength_bits hard coded in the tables).
6652 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6654 Fix a bug in the cipher-command parser: when supplying a cipher command
6655 string with an "undefined" symbol (neither command nor alphanumeric
6656 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6657 an error is flagged.
6659 Due to the strength-sorting extension, the code of the
6660 ssl_create_cipher_list() function was completely rearranged. I hope that
6661 the readability was also increased :-)
6662 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6664 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6665 for the first serial number and places 2 in the serial number file. This
6666 avoids problems when the root CA is created with serial number zero and
6667 the first user certificate has the same issuer name and serial number
6671 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6672 the new code. Add documentation for this stuff.
6675 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6676 X509_*() to X509at_*() on the grounds that they don't handle X509
6677 structures and behave in an analagous way to the X509v3 functions:
6678 they shouldn't be called directly but wrapper functions should be used
6681 So we also now have some wrapper functions that call the X509at functions
6682 when passed certificate requests. (TO DO: similar things can be done with
6683 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6684 things. Some of these need some d2i or i2d and print functionality
6685 because they handle more complex structures.)
6688 *) Add missing #ifndefs that caused missing symbols when building libssl
6689 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6690 NO_RSA in ssl/s2*.c.
6691 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6693 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6694 has a return value which indicates the quality of the random data
6695 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6696 error queue. New function RAND_pseudo_bytes() generates output that is
6697 guaranteed to be unique but not unpredictable. RAND_add is like
6698 RAND_seed, but takes an extra argument for an entropy estimate
6699 (RAND_seed always assumes full entropy).
6702 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6703 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6704 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6705 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6706 false-positive rate of at most 2^-80 for random input.
6709 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6712 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6713 in the 0.9.5 release), this returns the chain
6714 from an X509_CTX structure with a dup of the stack and all
6715 the X509 reference counts upped: so the stack will exist
6716 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6719 Also make SSL_SESSION_print() print out the verify return
6723 *) Add manpage for the pkcs12 command. Also change the default
6724 behaviour so MAC iteration counts are used unless the new
6725 -nomaciter option is used. This improves file security and
6726 only older versions of MSIE (4.0 for example) need it.
6729 *) Honor the no-xxx Configure options when creating .DEF files.
6732 *) Add PKCS#10 attributes to field table: challengePassword,
6733 unstructuredName and unstructuredAddress. These are taken from
6734 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6735 international characters are used.
6737 More changes to X509_ATTRIBUTE code: allow the setting of types
6738 based on strings. Remove the 'loc' parameter when adding
6739 attributes because these will be a SET OF encoding which is sorted
6743 *) Initial changes to the 'req' utility to allow request generation
6744 automation. This will allow an application to just generate a template
6745 file containing all the field values and have req construct the
6748 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6749 used all over the place including certificate requests and PKCS#7
6750 structures. They are currently handled manually where necessary with
6751 some primitive wrappers for PKCS#7. The new functions behave in a
6752 manner analogous to the X509 extension functions: they allow
6753 attributes to be looked up by NID and added.
6755 Later something similar to the X509V3 code would be desirable to
6756 automatically handle the encoding, decoding and printing of the
6757 more complex types. The string types like challengePassword can
6758 be handled by the string table functions.
6760 Also modified the multi byte string table handling. Now there is
6761 a 'global mask' which masks out certain types. The table itself
6762 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6763 is useful when for example there is only one permissible type
6764 (as in countryName) and using the mask might result in no valid
6768 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6769 SSL_get_peer_finished to allow applications to obtain the latest
6770 Finished messages sent to the peer or expected from the peer,
6771 respectively. (SSL_get_peer_finished is usually the Finished message
6772 actually received from the peer, otherwise the protocol will be aborted.)
6774 As the Finished message are message digests of the complete handshake
6775 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6776 be used for external authentication procedures when the authentication
6777 provided by SSL/TLS is not desired or is not enough.
6780 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6781 the host supports BWX extension and if Compaq C is present on the
6782 $PATH. Just exploiting of the BWX extension results in 20-30%
6783 performance kick for some algorithms, e.g. DES and RC4 to mention
6784 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6788 *) Add support for MS "fast SGC". This is arguably a violation of the
6789 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6790 weak crypto and after checking the certificate is SGC a second one
6791 with strong crypto. MS SGC stops the first handshake after receiving
6792 the server certificate message and sends a second client hello. Since
6793 a server will typically do all the time consuming operations before
6794 expecting any further messages from the client (server key exchange
6795 is the most expensive) there is little difference between the two.
6797 To get OpenSSL to support MS SGC we have to permit a second client
6798 hello message after we have sent server done. In addition we have to
6799 reset the MAC if we do get this second client hello.
6802 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6803 if a DER encoded private key is RSA or DSA traditional format. Changed
6804 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6805 format DER encoded private key. Newer code should use PKCS#8 format which
6806 has the key type encoded in the ASN1 structure. Added DER private key
6807 support to pkcs8 application.
6810 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6811 ciphersuites has been selected (as required by the SSL 3/TLS 1
6812 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6813 is set, we interpret this as a request to violate the specification
6814 (the worst that can happen is a handshake failure, and 'correct'
6815 behaviour would result in a handshake failure anyway).
6818 *) In SSL_CTX_add_session, take into account that there might be multiple
6819 SSL_SESSION structures with the same session ID (e.g. when two threads
6820 concurrently obtain them from an external cache).
6821 The internal cache can handle only one SSL_SESSION with a given ID,
6822 so if there's a conflict, we now throw out the old one to achieve
6826 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6827 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6828 some routines that use cipher OIDs: some ciphers do not have OIDs
6829 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6833 *) Simplify the trust setting structure and code. Now we just have
6834 two sequences of OIDs for trusted and rejected settings. These will
6835 typically have values the same as the extended key usage extension
6836 and any application specific purposes.
6838 The trust checking code now has a default behaviour: it will just
6839 check for an object with the same NID as the passed id. Functions can
6840 be provided to override either the default behaviour or the behaviour
6841 for a given id. SSL client, server and email already have functions
6842 in place for compatibility: they check the NID and also return "trusted"
6843 if the certificate is self signed.
6846 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6847 traditional format into an EVP_PKEY structure.
6850 *) Add a password callback function PEM_cb() which either prompts for
6851 a password if usr_data is NULL or otherwise assumes it is a null
6852 terminated password. Allow passwords to be passed on command line
6853 environment or config files in a few more utilities.
6856 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6857 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6858 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6859 Update documentation.
6862 *) Support for ASN1 "NULL" type. This could be handled before by using
6863 ASN1_TYPE but there wasn't any function that would try to read a NULL
6864 and produce an error if it couldn't. For compatibility we also have
6865 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6866 don't allocate anything because they don't need to.
6869 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6871 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6873 *) Rebuild of the memory allocation routines used by OpenSSL code and
6874 possibly others as well. The purpose is to make an interface that
6875 provide hooks so anyone can build a separate set of allocation and
6876 deallocation routines to be used by OpenSSL, for example memory
6877 pool implementations, or something else, which was previously hard
6878 since Malloc(), Realloc() and Free() were defined as macros having
6879 the values malloc, realloc and free, respectively (except for Win32
6880 compilations). The same is provided for memory debugging code.
6881 OpenSSL already comes with functionality to find memory leaks, but
6882 this gives people a chance to debug other memory problems.
6884 With these changes, a new set of functions and macros have appeared:
6886 CRYPTO_set_mem_debug_functions() [F]
6887 CRYPTO_get_mem_debug_functions() [F]
6888 CRYPTO_dbg_set_options() [F]
6889 CRYPTO_dbg_get_options() [F]
6890 CRYPTO_malloc_debug_init() [M]
6892 The memory debug functions are NULL by default, unless the library
6893 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6894 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6895 gives the standard debugging functions that come with OpenSSL) or
6896 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6897 provided by the library user) must be used. When the standard
6898 debugging functions are used, CRYPTO_dbg_set_options can be used to
6899 request additional information:
6900 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6901 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6903 Also, things like CRYPTO_set_mem_functions will always give the
6904 expected result (the new set of functions is used for allocation
6905 and deallocation) at all times, regardless of platform and compiler
6908 To finish it up, some functions that were never use in any other
6909 way than through macros have a new API and new semantic:
6912 CRYPTO_dbg_realloc()
6915 All macros of value have retained their old syntax.
6916 [Richard Levitte and Bodo Moeller]
6918 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6919 ordering of SMIMECapabilities wasn't in "strength order" and there
6920 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6924 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6925 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6926 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6928 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6929 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6930 functionality to handle multipart/signed properly) and a utility
6931 called 'smime' to call all this stuff. This is based on code I
6932 originally wrote for Celo who have kindly allowed it to be
6933 included in OpenSSL.
6936 *) Add variants des_set_key_checked and des_set_key_unchecked of
6937 des_set_key (aka des_key_sched). Global variable des_check_key
6938 decides which of these is called by des_set_key; this way
6939 des_check_key behaves as it always did, but applications and
6940 the library itself, which was buggy for des_check_key == 1,
6941 have a cleaner way to pick the version they need.
6944 *) New function PKCS12_newpass() which changes the password of a
6948 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6949 dynamic mix. In both cases the ids can be used as an index into the
6950 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6951 functions so they accept a list of the field values and the
6952 application doesn't need to directly manipulate the X509_TRUST
6956 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6960 *) Modify the way the V3 extension code looks up extensions. This now
6961 works in a similar way to the object code: we have some "standard"
6962 extensions in a static table which is searched with OBJ_bsearch()
6963 and the application can add dynamic ones if needed. The file
6964 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6965 updated whenever a new extension is added to the core code and kept
6966 in ext_nid order. There is a simple program 'tabtest.c' which checks
6967 this. New extensions are not added too often so this file can readily
6968 be maintained manually.
6970 There are two big advantages in doing things this way. The extensions
6971 can be looked up immediately and no longer need to be "added" using
6972 X509V3_add_standard_extensions(): this function now does nothing.
6973 [Side note: I get *lots* of email saying the extension code doesn't
6974 work because people forget to call this function]
6975 Also no dynamic allocation is done unless new extensions are added:
6976 so if we don't add custom extensions there is no need to call
6977 X509V3_EXT_cleanup().
6980 *) Modify enc utility's salting as follows: make salting the default. Add a
6981 magic header, so unsalted files fail gracefully instead of just decrypting
6982 to garbage. This is because not salting is a big security hole, so people
6983 should be discouraged from doing it.
6986 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6987 digest to be passed on the command line but it only used this
6988 parameter when signing a certificate. Modified so all relevant
6989 operations are affected by the digest parameter including the
6990 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6991 DSA key was used because it didn't fix the digest.
6994 *) Initial certificate chain verify code. Currently tests the untrusted
6995 certificates for consistency with the verify purpose (which is set
6996 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6998 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6999 this is because it will reject chains with invalid extensions whereas
7000 every previous version of OpenSSL and SSLeay made no checks at all.
7002 Trust code: checks the root CA for the relevant trust settings. Trust
7003 settings have an initial value consistent with the verify purpose: e.g.
7004 if the verify purpose is for SSL client use it expects the CA to be
7005 trusted for SSL client use. However the default value can be changed to
7006 permit custom trust settings: one example of this would be to only trust
7007 certificates from a specific "secure" set of CAs.
7009 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7010 which should be used for version portability: especially since the
7011 verify structure is likely to change more often now.
7013 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7014 to set them. If not set then assume SSL clients will verify SSL servers
7017 Two new options to the verify program: -untrusted allows a set of
7018 untrusted certificates to be passed in and -purpose which sets the
7019 intended purpose of the certificate. If a purpose is set then the
7020 new chain verify code is used to check extension consistency.
7023 *) Support for the authority information access extension.
7026 *) Modify RSA and DSA PEM read routines to transparently handle
7027 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7028 public keys in a format compatible with certificate
7029 SubjectPublicKeyInfo structures. Unfortunately there were already
7030 functions called *_PublicKey_* which used various odd formats so
7031 these are retained for compatibility: however the DSA variants were
7032 never in a public release so they have been deleted. Changed dsa/rsa
7033 utilities to handle the new format: note no releases ever handled public
7034 keys so we should be OK.
7036 The primary motivation for this change is to avoid the same fiasco
7037 that dogs private keys: there are several incompatible private key
7038 formats some of which are standard and some OpenSSL specific and
7039 require various evil hacks to allow partial transparent handling and
7040 even then it doesn't work with DER formats. Given the option anything
7041 other than PKCS#8 should be dumped: but the other formats have to
7042 stay in the name of compatibility.
7044 With public keys and the benefit of hindsight one standard format
7045 is used which works with EVP_PKEY, RSA or DSA structures: though
7046 it clearly returns an error if you try to read the wrong kind of key.
7048 Added a -pubkey option to the 'x509' utility to output the public key.
7049 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7050 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7051 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7052 that do the same as the EVP_PKEY_assign_*() except they up the
7053 reference count of the added key (they don't "swallow" the
7057 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7058 CRLs would fail if the file contained no certificates or no CRLs:
7059 added a new function to read in both types and return the number
7060 read: this means that if none are read it will be an error. The
7061 DER versions of the certificate and CRL reader would always fail
7062 because it isn't possible to mix certificates and CRLs in DER format
7063 without choking one or the other routine. Changed this to just read
7064 a certificate: this is the best we can do. Also modified the code
7065 in apps/verify.c to take notice of return codes: it was previously
7066 attempting to read in certificates from NULL pointers and ignoring
7067 any errors: this is one reason why the cert and CRL reader seemed
7068 to work. It doesn't check return codes from the default certificate
7069 routines: these may well fail if the certificates aren't installed.
7072 *) Code to support otherName option in GeneralName.
7075 *) First update to verify code. Change the verify utility
7076 so it warns if it is passed a self signed certificate:
7077 for consistency with the normal behaviour. X509_verify
7078 has been modified to it will now verify a self signed
7079 certificate if *exactly* the same certificate appears
7080 in the store: it was previously impossible to trust a
7081 single self signed certificate. This means that:
7082 openssl verify ss.pem
7083 now gives a warning about a self signed certificate but
7084 openssl verify -CAfile ss.pem ss.pem
7088 *) For servers, store verify_result in SSL_SESSION data structure
7089 (and add it to external session representation).
7090 This is needed when client certificate verifications fails,
7091 but an application-provided verification callback (set by
7092 SSL_CTX_set_cert_verify_callback) allows accepting the session
7093 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7094 but returns 1): When the session is reused, we have to set
7095 ssl->verify_result to the appropriate error code to avoid
7097 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7099 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7100 case in PKCS7_dataInit() where the signed PKCS7 structure
7101 didn't contain any existing data because it was being created.
7102 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7104 *) Add a salt to the key derivation routines in enc.c. This
7105 forms the first 8 bytes of the encrypted file. Also add a
7106 -S option to allow a salt to be input on the command line.
7109 *) New function X509_cmp(). Oddly enough there wasn't a function
7110 to compare two certificates. We do this by working out the SHA1
7111 hash and comparing that. X509_cmp() will be needed by the trust
7115 *) SSL_get1_session() is like SSL_get_session(), but increments
7116 the reference count in the SSL_SESSION returned.
7117 [Geoff Thorpe <geoff@eu.c2.net>]
7119 *) Fix for 'req': it was adding a null to request attributes.
7120 Also change the X509_LOOKUP and X509_INFO code to handle
7121 certificate auxiliary information.
7124 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7128 *) Add the possibility to add extra information to the memory leak
7129 detecting output, to form tracebacks, showing from where each
7130 allocation was originated: CRYPTO_push_info("constant string") adds
7131 the string plus current file name and line number to a per-thread
7132 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7133 is like calling CYRPTO_pop_info() until the stack is empty.
7134 Also updated memory leak detection code to be multi-thread-safe.
7137 *) Add options -text and -noout to pkcs7 utility and delete the
7138 encryption options which never did anything. Update docs.
7141 *) Add options to some of the utilities to allow the pass phrase
7142 to be included on either the command line (not recommended on
7143 OSes like Unix) or read from the environment. Update the
7144 manpages and fix a few bugs.
7147 *) Add a few manpages for some of the openssl commands.
7150 *) Fix the -revoke option in ca. It was freeing up memory twice,
7151 leaking and not finding already revoked certificates.
7154 *) Extensive changes to support certificate auxiliary information.
7155 This involves the use of X509_CERT_AUX structure and X509_AUX
7156 functions. An X509_AUX function such as PEM_read_X509_AUX()
7157 can still read in a certificate file in the usual way but it
7158 will also read in any additional "auxiliary information". By
7159 doing things this way a fair degree of compatibility can be
7160 retained: existing certificates can have this information added
7161 using the new 'x509' options.
7163 Current auxiliary information includes an "alias" and some trust
7164 settings. The trust settings will ultimately be used in enhanced
7165 certificate chain verification routines: currently a certificate
7166 can only be trusted if it is self signed and then it is trusted
7170 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7171 The problem was that one of the replacement routines had not been working
7172 since SSLeay releases. For now the offending routine has been replaced
7173 with non-optimised assembler. Even so, this now gives around 95%
7174 performance improvement for 1024 bit RSA signs.
7177 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7178 handling. Most clients have the effective key size in bits equal to
7179 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7180 A few however don't do this and instead use the size of the decrypted key
7181 to determine the RC2 key length and the AlgorithmIdentifier to determine
7182 the effective key length. In this case the effective key length can still
7183 be 40 bits but the key length can be 168 bits for example. This is fixed
7184 by manually forcing an RC2 key into the EVP_PKEY structure because the
7185 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7186 the key length and effective key length are equal.
7189 *) Add a bunch of functions that should simplify the creation of
7190 X509_NAME structures. Now you should be able to do:
7191 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7192 and have it automatically work out the correct field type and fill in
7193 the structures. The more adventurous can try:
7194 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7195 and it will (hopefully) work out the correct multibyte encoding.
7198 *) Change the 'req' utility to use the new field handling and multibyte
7199 copy routines. Before the DN field creation was handled in an ad hoc
7200 way in req, ca, and x509 which was rather broken and didn't support
7201 BMPStrings or UTF8Strings. Since some software doesn't implement
7202 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7203 using the dirstring_type option. See the new comment in the default
7204 openssl.cnf for more info.
7207 *) Make crypto/rand/md_rand.c more robust:
7208 - Assure unique random numbers after fork().
7209 - Make sure that concurrent threads access the global counter and
7210 md serializably so that we never lose entropy in them
7211 or use exactly the same state in multiple threads.
7212 Access to the large state is not always serializable because
7213 the additional locking could be a performance killer, and
7214 md should be large enough anyway.
7217 *) New file apps/app_rand.c with commonly needed functionality
7218 for handling the random seed file.
7220 Use the random seed file in some applications that previously did not:
7222 dsaparam -genkey (which also ignored its '-rand' option),
7225 x509 (when signing).
7226 Except on systems with /dev/urandom, it is crucial to have a random
7227 seed file at least for key creation, DSA signing, and for DH exchanges;
7228 for RSA signatures we could do without one.
7230 gendh and gendsa (unlike genrsa) used to read only the first byte
7231 of each file listed in the '-rand' option. The function as previously
7232 found in genrsa is now in app_rand.c and is used by all programs
7233 that support '-rand'.
7236 *) In RAND_write_file, use mode 0600 for creating files;
7237 don't just chmod when it may be too late.
7240 *) Report an error from X509_STORE_load_locations
7241 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7244 *) New function ASN1_mbstring_copy() this copies a string in either
7245 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7246 into an ASN1_STRING type. A mask of permissible types is passed
7247 and it chooses the "minimal" type to use or an error if not type
7251 *) Add function equivalents to the various macros in asn1.h. The old
7252 macros are retained with an M_ prefix. Code inside the library can
7253 use the M_ macros. External code (including the openssl utility)
7254 should *NOT* in order to be "shared library friendly".
7257 *) Add various functions that can check a certificate's extensions
7258 to see if it usable for various purposes such as SSL client,
7259 server or S/MIME and CAs of these types. This is currently
7260 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7261 verification. Also added a -purpose flag to x509 utility to
7262 print out all the purposes.
7265 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7269 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7270 for, obtain and decode and extension and obtain its critical flag.
7271 This allows all the necessary extension code to be handled in a
7272 single function call.
7275 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7276 platforms. See crypto/rc4/rc4_enc.c for further details.
7279 *) New -noout option to asn1parse. This causes no output to be produced
7280 its main use is when combined with -strparse and -out to extract data
7281 from a file (which may not be in ASN.1 format).
7284 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7285 when producing the local key id.
7286 [Richard Levitte <levitte@stacken.kth.se>]
7288 *) New option -dhparam in s_server. This allows a DH parameter file to be
7289 stated explicitly. If it is not stated then it tries the first server
7290 certificate file. The previous behaviour hard coded the filename
7294 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7295 a public key to be input or output. For example:
7296 openssl rsa -in key.pem -pubout -out pubkey.pem
7297 Also added necessary DSA public key functions to handle this.
7300 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7301 in the message. This was handled by allowing
7302 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7303 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7305 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7306 to the end of the strings whereas this didn't. This would cause problems
7307 if strings read with d2i_ASN1_bytes() were later modified.
7308 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7310 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7311 data and it contains EOF it will end up returning an error. This is
7312 caused by input 46 bytes long. The cause is due to the way base64
7313 BIOs find the start of base64 encoded data. They do this by trying a
7314 trial decode on each line until they find one that works. When they
7315 do a flag is set and it starts again knowing it can pass all the
7316 data directly through the decoder. Unfortunately it doesn't reset
7317 the context it uses. This means that if EOF is reached an attempt
7318 is made to pass two EOFs through the context and this causes the
7319 resulting error. This can also cause other problems as well. As is
7320 usual with these problems it takes *ages* to find and the fix is
7321 trivial: move one line.
7322 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7324 *) Ugly workaround to get s_client and s_server working under Windows. The
7325 old code wouldn't work because it needed to select() on sockets and the
7326 tty (for keypresses and to see if data could be written). Win32 only
7327 supports select() on sockets so we select() with a 1s timeout on the
7328 sockets and then see if any characters are waiting to be read, if none
7329 are present then we retry, we also assume we can always write data to
7330 the tty. This isn't nice because the code then blocks until we've
7331 received a complete line of data and it is effectively polling the
7332 keyboard at 1s intervals: however it's quite a bit better than not
7333 working at all :-) A dedicated Windows application might handle this
7334 with an event loop for example.
7337 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7338 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7339 will be called when RSA_sign() and RSA_verify() are used. This is useful
7340 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7341 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7342 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7343 This necessitated the support of an extra signature type NID_md5_sha1
7344 for SSL signatures and modifications to the SSL library to use it instead
7345 of calling RSA_public_decrypt() and RSA_private_encrypt().
7348 *) Add new -verify -CAfile and -CApath options to the crl program, these
7349 will lookup a CRL issuers certificate and verify the signature in a
7350 similar way to the verify program. Tidy up the crl program so it
7351 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7352 less strict. It will now permit CRL extensions even if it is not
7353 a V2 CRL: this will allow it to tolerate some broken CRLs.
7356 *) Initialize all non-automatic variables each time one of the openssl
7357 sub-programs is started (this is necessary as they may be started
7358 multiple times from the "OpenSSL>" prompt).
7359 [Lennart Bang, Bodo Moeller]
7361 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7362 removing all other RSA functionality (this is what NO_RSA does). This
7363 is so (for example) those in the US can disable those operations covered
7364 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7368 *) Non-copying interface to BIO pairs.
7369 (still largely untested)
7372 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7373 ASCII string. This was handled independently in various places before.
7376 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7377 UTF8 strings a character at a time.
7380 *) Use client_version from client hello to select the protocol
7381 (s23_srvr.c) and for RSA client key exchange verification
7382 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7385 *) Add various utility functions to handle SPKACs, these were previously
7386 handled by poking round in the structure internals. Added new function
7387 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7388 print, verify and generate SPKACs. Based on an original idea from
7389 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7392 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7395 *) Allow the config file extension section to be overwritten on the
7396 command line. Based on an original idea from Massimiliano Pala
7397 <madwolf@comune.modena.it>. The new option is called -extensions
7398 and can be applied to ca, req and x509. Also -reqexts to override
7399 the request extensions in req and -crlexts to override the crl extensions
7403 *) Add new feature to the SPKAC handling in ca. Now you can include
7404 the same field multiple times by preceding it by "XXXX." for example:
7407 this is the same syntax as used in the req config file.
7410 *) Allow certificate extensions to be added to certificate requests. These
7411 are specified in a 'req_extensions' option of the req section of the
7412 config file. They can be printed out with the -text option to req but
7413 are otherwise ignored at present.
7416 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7417 data read consists of only the final block it would not decrypted because
7418 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7419 A misplaced 'break' also meant the decrypted final block might not be
7420 copied until the next read.
7423 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7424 a few extra parameters to the DH structure: these will be useful if
7425 for example we want the value of 'q' or implement X9.42 DH.
7428 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7429 provides hooks that allow the default DSA functions or functions on a
7430 "per key" basis to be replaced. This allows hardware acceleration and
7431 hardware key storage to be handled without major modification to the
7432 library. Also added low level modexp hooks and CRYPTO_EX structure and
7433 associated functions.
7436 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7437 as "read only": it can't be written to and the buffer it points to will
7438 not be freed. Reading from a read only BIO is much more efficient than
7439 a normal memory BIO. This was added because there are several times when
7440 an area of memory needs to be read from a BIO. The previous method was
7441 to create a memory BIO and write the data to it, this results in two
7442 copies of the data and an O(n^2) reading algorithm. There is a new
7443 function BIO_new_mem_buf() which creates a read only memory BIO from
7444 an area of memory. Also modified the PKCS#7 routines to use read only
7448 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7449 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7450 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7451 but a retry condition occured while trying to read the rest.
7454 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7455 NID_pkcs7_encrypted by default: this was wrong since this should almost
7456 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7457 the encrypted data type: this is a more sensible place to put it and it
7458 allows the PKCS#12 code to be tidied up that duplicated this
7462 *) Changed obj_dat.pl script so it takes its input and output files on
7463 the command line. This should avoid shell escape redirection problems
7467 *) Initial support for certificate extension requests, these are included
7468 in things like Xenroll certificate requests. Included functions to allow
7469 extensions to be obtained and added.
7472 *) -crlf option to s_client and s_server for sending newlines as
7473 CRLF (as required by many protocols).
7476 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7478 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7479 [Ralf S. Engelschall]
7481 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7482 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7484 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7488 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7489 DH parameters/keys (q is lost during that conversion, but the resulting
7490 DH parameters contain its length).
7492 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7493 much faster than DH_generate_parameters (which creates parameters
7494 where p = 2*q + 1), and also the smaller q makes DH computations
7495 much more efficient (160-bit exponentiation instead of 1024-bit
7496 exponentiation); so this provides a convenient way to support DHE
7497 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7498 utter importance to use
7499 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7501 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7502 when such DH parameters are used, because otherwise small subgroup
7503 attacks may become possible!
7506 *) Avoid memory leak in i2d_DHparams.
7509 *) Allow the -k option to be used more than once in the enc program:
7510 this allows the same encrypted message to be read by multiple recipients.
7513 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7514 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7515 it will always use the numerical form of the OID, even if it has a short
7519 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7520 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7521 otherwise bn_mod_exp was called. In the case of hardware keys for example
7522 no private key components need be present and it might store extra data
7523 in the RSA structure, which cannot be accessed from bn_mod_exp.
7524 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7525 private key operations.
7528 *) Added support for SPARC Linux.
7531 *) pem_password_cb function type incompatibly changed from
7532 typedef int pem_password_cb(char *buf, int size, int rwflag);
7534 ....(char *buf, int size, int rwflag, void *userdata);
7535 so that applications can pass data to their callbacks:
7536 The PEM[_ASN1]_{read,write}... functions and macros now take an
7537 additional void * argument, which is just handed through whenever
7538 the password callback is called.
7539 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7541 New function SSL_CTX_set_default_passwd_cb_userdata.
7543 Compatibility note: As many C implementations push function arguments
7544 onto the stack in reverse order, the new library version is likely to
7545 interoperate with programs that have been compiled with the old
7546 pem_password_cb definition (PEM_whatever takes some data that
7547 happens to be on the stack as its last argument, and the callback
7548 just ignores this garbage); but there is no guarantee whatsoever that
7551 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7552 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7553 problems not only on Windows, but also on some Unix platforms.
7554 To avoid problematic command lines, these definitions are now in an
7555 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7556 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7559 *) MIPS III/IV assembler module is reimplemented.
7562 *) More DES library cleanups: remove references to srand/rand and
7563 delete an unused file.
7566 *) Add support for the the free Netwide assembler (NASM) under Win32,
7567 since not many people have MASM (ml) and it can be hard to obtain.
7568 This is currently experimental but it seems to work OK and pass all
7569 the tests. Check out INSTALL.W32 for info.
7572 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7573 without temporary keys kept an extra copy of the server key,
7574 and connections with temporary keys did not free everything in case
7578 *) New function RSA_check_key and new openssl rsa option -check
7579 for verifying the consistency of RSA keys.
7580 [Ulf Moeller, Bodo Moeller]
7582 *) Various changes to make Win32 compile work:
7583 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7584 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7585 comparison" warnings.
7586 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7589 *) Add a debugging option to PKCS#5 v2 key generation function: when
7590 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7591 derived keys are printed to stderr.
7594 *) Copy the flags in ASN1_STRING_dup().
7595 [Roman E. Pavlov <pre@mo.msk.ru>]
7597 *) The x509 application mishandled signing requests containing DSA
7598 keys when the signing key was also DSA and the parameters didn't match.
7600 It was supposed to omit the parameters when they matched the signing key:
7601 the verifying software was then supposed to automatically use the CA's
7602 parameters if they were absent from the end user certificate.
7604 Omitting parameters is no longer recommended. The test was also
7605 the wrong way round! This was probably due to unusual behaviour in
7606 EVP_cmp_parameters() which returns 1 if the parameters match.
7607 This meant that parameters were omitted when they *didn't* match and
7608 the certificate was useless. Certificates signed with 'ca' didn't have
7610 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7612 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7613 The interface is as follows:
7614 Applications can use
7615 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7616 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7617 "off" is now the default.
7618 The library internally uses
7619 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7620 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7621 to disable memory-checking temporarily.
7623 Some inconsistent states that previously were possible (and were
7624 even the default) are now avoided.
7626 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7627 with each memory chunk allocated; this is occasionally more helpful
7628 than just having a counter.
7630 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7632 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7636 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7637 which largely parallels "options", but is for changing API behaviour,
7638 whereas "options" are about protocol behaviour.
7639 Initial "mode" flags are:
7641 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7642 a single record has been written.
7643 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7644 retries use the same buffer location.
7645 (But all of the contents must be
7649 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7652 *) Fix problems with no-hmac etc.
7653 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7655 *) New functions RSA_get_default_method(), RSA_set_method() and
7656 RSA_get_method(). These allows replacement of RSA_METHODs without having
7657 to mess around with the internals of an RSA structure.
7660 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7661 Also really enable memory leak checks in openssl.c and in some
7663 [Chad C. Mulligan, Bodo Moeller]
7665 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7666 up the length of negative integers. This has now been simplified to just
7667 store the length when it is first determined and use it later, rather
7668 than trying to keep track of where data is copied and updating it to
7670 [Steve Henson, reported by Brien Wheeler
7671 <bwheeler@authentica-security.com>]
7673 *) Add a new function PKCS7_signatureVerify. This allows the verification
7674 of a PKCS#7 signature but with the signing certificate passed to the
7675 function itself. This contrasts with PKCS7_dataVerify which assumes the
7676 certificate is present in the PKCS#7 structure. This isn't always the
7677 case: certificates can be omitted from a PKCS#7 structure and be
7678 distributed by "out of band" means (such as a certificate database).
7681 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7682 function prototypes in pem.h, also change util/mkdef.pl to add the
7683 necessary function names.
7686 *) mk1mf.pl (used by Windows builds) did not properly read the
7687 options set by Configure in the top level Makefile, and Configure
7688 was not even able to write more than one option correctly.
7689 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7692 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7693 file to be loaded from a BIO or FILE pointer. The BIO version will
7694 for example allow memory BIOs to contain config info.
7697 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7698 Whoever hopes to achieve shared-library compatibility across versions
7699 must use this, not the compile-time macro.
7700 (Exercise 0.9.4: Which is the minimum library version required by
7702 Note: All this applies only to multi-threaded programs, others don't
7706 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7707 through a BIO pair triggered the default case, i.e.
7708 SSLerr(...,SSL_R_UNKNOWN_STATE).
7711 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7712 can use the SSL library even if none of the specific BIOs is
7716 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7717 for the encoded length.
7718 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7720 *) Add initial documentation of the X509V3 functions.
7723 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7724 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7725 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7726 secure PKCS#8 private key format with a high iteration count.
7729 *) Fix determination of Perl interpreter: A perl or perl5
7730 _directory_ in $PATH was also accepted as the interpreter.
7731 [Ralf S. Engelschall]
7733 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7734 wrong with it but it was very old and did things like calling
7735 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7739 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7740 to use the new extension code.
7743 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7744 with macros. This should make it easier to change their form, add extra
7745 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7749 *) Add to configuration table a new entry that can specify an alternative
7750 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7751 according to Mark Crispin <MRC@Panda.COM>.
7755 *) DES CBC did not update the IV. Weird.
7758 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7759 Changing the behaviour of the former might break existing programs --
7760 where IV updating is needed, des_ncbc_encrypt can be used.
7763 *) When bntest is run from "make test" it drives bc to check its
7764 calculations, as well as internally checking them. If an internal check
7765 fails, it needs to cause bc to give a non-zero result or make test carries
7766 on without noticing the failure. Fixed.
7769 *) DES library cleanups.
7772 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7773 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7774 ciphers. NOTE: although the key derivation function has been verified
7775 against some published test vectors it has not been extensively tested
7776 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7780 *) Instead of "mkdir -p", which is not fully portable, use new
7781 Perl script "util/mkdir-p.pl".
7784 *) Rewrite the way password based encryption (PBE) is handled. It used to
7785 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7786 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7787 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7788 the 'parameter' field of the AlgorithmIdentifier is passed to the
7789 underlying key generation function so it must do its own ASN1 parsing.
7790 This has also changed the EVP_PBE_CipherInit() function which now has a
7791 'parameter' argument instead of literal salt and iteration count values
7792 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7795 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7796 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7797 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7798 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7799 value was just used as a "magic string" and not used directly its
7800 value doesn't matter.
7803 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7807 *) "linux-sparc64" configuration (ultrapenguin).
7808 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7809 "linux-sparc" configuration.
7810 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7812 *) config now generates no-xxx options for missing ciphers.
7815 *) Support the EBCDIC character set (work in progress).
7816 File ebcdic.c not yet included because it has a different license.
7817 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7819 *) Support BS2000/OSD-POSIX.
7820 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7822 *) Make callbacks for key generation use void * instead of char *.
7825 *) Make S/MIME samples compile (not yet tested).
7828 *) Additional typesafe stacks.
7831 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7835 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7837 *) New configuration variant "sco5-gcc".
7839 *) Updated some demos.
7840 [Sean O Riordain, Wade Scholine]
7842 *) Add missing BIO_free at exit of pkcs12 application.
7845 *) Fix memory leak in conf.c.
7848 *) Updates for Win32 to assembler version of MD5.
7851 *) Set #! path to perl in apps/der_chop to where we found it
7852 instead of using a fixed path.
7855 *) SHA library changes for irix64-mips4-cc.
7858 *) Improvements for VMS support.
7862 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7864 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7865 This also avoids the problems with SC4.2 and unpatched SC5.
7866 [Andy Polyakov <appro@fy.chalmers.se>]
7868 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7869 These are required because of the typesafe stack would otherwise break
7870 existing code. If old code used a structure member which used to be STACK
7871 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7872 sk_num or sk_value it would produce an error because the num, data members
7873 are not present in STACK_OF. Now it just produces a warning. sk_set
7874 replaces the old method of assigning a value to sk_value
7875 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7876 that does this will no longer work (and should use sk_set instead) but
7877 this could be regarded as a "questionable" behaviour anyway.
7880 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7881 correctly handle encrypted S/MIME data.
7884 *) Change type of various DES function arguments from des_cblock
7885 (which means, in function argument declarations, pointer to char)
7886 to des_cblock * (meaning pointer to array with 8 char elements),
7887 which allows the compiler to do more typechecking; it was like
7888 that back in SSLeay, but with lots of ugly casts.
7890 Introduce new type const_des_cblock.
7893 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7894 problems: find RecipientInfo structure that matches recipient certificate
7895 and initialise the ASN1 structures properly based on passed cipher.
7898 *) Belatedly make the BN tests actually check the results.
7901 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7902 to and from BNs: it was completely broken. New compilation option
7903 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7904 key elements as negative integers.
7907 *) Reorganize and speed up MD5.
7908 [Andy Polyakov <appro@fy.chalmers.se>]
7911 [Richard Levitte <richard@levitte.org>]
7913 *) New option -out to asn1parse to allow the parsed structure to be
7914 output to a file. This is most useful when combined with the -strparse
7915 option to examine the output of things like OCTET STRINGS.
7918 *) Make SSL library a little more fool-proof by not requiring any longer
7919 that SSL_set_{accept,connect}_state be called before
7920 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7921 in many applications because usually everything *appeared* to work as
7922 intended anyway -- now it really works as intended).
7925 *) Move openssl.cnf out of lib/.
7928 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7929 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7930 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7931 [Ralf S. Engelschall]
7933 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7934 handle PKCS#7 enveloped data properly.
7935 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7937 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7938 copying pointers. The cert_st handling is changed by this in
7939 various ways (and thus what used to be known as ctx->default_cert
7940 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7941 any longer when s->cert does not give us what we need).
7942 ssl_cert_instantiate becomes obsolete by this change.
7943 As soon as we've got the new code right (possibly it already is?),
7944 we have solved a couple of bugs of the earlier code where s->cert
7945 was used as if it could not have been shared with other SSL structures.
7947 Note that using the SSL API in certain dirty ways now will result
7948 in different behaviour than observed with earlier library versions:
7949 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7950 does not influence s as it used to.
7952 In order to clean up things more thoroughly, inside SSL_SESSION
7953 we don't use CERT any longer, but a new structure SESS_CERT
7954 that holds per-session data (if available); currently, this is
7955 the peer's certificate chain and, for clients, the server's certificate
7956 and temporary key. CERT holds only those values that can have
7957 meaningful defaults in an SSL_CTX.
7960 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7961 from the internal representation. Various PKCS#7 fixes: remove some
7962 evil casts and set the enc_dig_alg field properly based on the signing
7966 *) Allow PKCS#12 password to be set from the command line or the
7967 environment. Let 'ca' get its config file name from the environment
7968 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7972 *) Allow certificate policies extension to use an IA5STRING for the
7973 organization field. This is contrary to the PKIX definition but
7974 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7978 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7979 without disallowing inline assembler and the like for non-pedantic builds.
7982 *) Support Borland C++ builder.
7983 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7988 *) SHA-1 cleanups and performance enhancements.
7989 [Andy Polyakov <appro@fy.chalmers.se>]
7991 *) Sparc v8plus assembler for the bignum library.
7992 [Andy Polyakov <appro@fy.chalmers.se>]
7994 *) Accept any -xxx and +xxx compiler options in Configure.
7997 *) Update HPUX configuration.
8000 *) Add missing sk_<type>_unshift() function to safestack.h
8001 [Ralf S. Engelschall]
8003 *) New function SSL_CTX_use_certificate_chain_file that sets the
8004 "extra_cert"s in addition to the certificate. (This makes sense
8005 only for "PEM" format files, as chains as a whole are not
8009 *) Support verify_depth from the SSL API.
8010 x509_vfy.c had what can be considered an off-by-one-error:
8011 Its depth (which was not part of the external interface)
8012 was actually counting the number of certificates in a chain;
8013 now it really counts the depth.
8016 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8017 instead of X509err, which often resulted in confusing error
8018 messages since the error codes are not globally unique
8019 (e.g. an alleged error in ssl3_accept when a certificate
8020 didn't match the private key).
8022 *) New function SSL_CTX_set_session_id_context that allows to set a default
8023 value (so that you don't need SSL_set_session_id_context for each
8024 connection using the SSL_CTX).
8027 *) OAEP decoding bug fix.
8030 *) Support INSTALL_PREFIX for package builders, as proposed by
8034 *) New Configure options "threads" and "no-threads". For systems
8035 where the proper compiler options are known (currently Solaris
8036 and Linux), "threads" is the default.
8039 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8042 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8043 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8044 such as /usr/local/bin.
8047 *) "make linux-shared" to build shared libraries.
8048 [Niels Poppe <niels@netbox.org>]
8050 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8053 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8054 extension adding in x509 utility.
8057 *) Remove NOPROTO sections and error code comments.
8060 *) Partial rewrite of the DEF file generator to now parse the ANSI
8064 *) New Configure options --prefix=DIR and --openssldir=DIR.
8067 *) Complete rewrite of the error code script(s). It is all now handled
8068 by one script at the top level which handles error code gathering,
8069 header rewriting and C source file generation. It should be much better
8070 than the old method: it now uses a modified version of Ulf's parser to
8071 read the ANSI prototypes in all header files (thus the old K&R definitions
8072 aren't needed for error creation any more) and do a better job of
8073 translating function codes into names. The old 'ASN1 error code imbedded
8074 in a comment' is no longer necessary and it doesn't use .err files which
8075 have now been deleted. Also the error code call doesn't have to appear all
8076 on one line (which resulted in some large lines...).
8079 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8082 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8083 0 (which usually indicates a closed connection), but continue reading.
8086 *) Fix some race conditions.
8089 *) Add support for CRL distribution points extension. Add Certificate
8090 Policies and CRL distribution points documentation.
8093 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8096 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8097 8 of keying material. Merlin has also confirmed interop with this fix
8098 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8099 [Merlin Hughes <merlin@baltimore.ie>]
8101 *) Fix lots of warnings.
8102 [Richard Levitte <levitte@stacken.kth.se>]
8104 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8105 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8106 [Richard Levitte <levitte@stacken.kth.se>]
8108 *) Fix problems with sizeof(long) == 8.
8109 [Andy Polyakov <appro@fy.chalmers.se>]
8111 *) Change functions to ANSI C.
8114 *) Fix typos in error codes.
8115 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8117 *) Remove defunct assembler files from Configure.
8120 *) SPARC v8 assembler BIGNUM implementation.
8121 [Andy Polyakov <appro@fy.chalmers.se>]
8123 *) Support for Certificate Policies extension: both print and set.
8124 Various additions to support the r2i method this uses.
8127 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8128 return a const string when you are expecting an allocated buffer.
8131 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8132 types DirectoryString and DisplayText.
8135 *) Add code to allow r2i extensions to access the configuration database,
8136 add an LHASH database driver and add several ctx helper functions.
8139 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8140 fail when they extended the size of a BIGNUM.
8143 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8144 support typesafe stack.
8147 *) Fix typo in SSL_[gs]et_options().
8148 [Nils Frostberg <nils@medcom.se>]
8150 *) Delete various functions and files that belonged to the (now obsolete)
8151 old X509V3 handling code.
8154 *) New Configure option "rsaref".
8157 *) Don't auto-generate pem.h.
8160 *) Introduce type-safe ASN.1 SETs.
8163 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8164 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8166 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8167 that links with OpenSSL (well at least cause lots of warnings), but fear
8168 not: the conversion is trivial, and it eliminates loads of evil casts. A
8169 few STACKed things have been converted already. Feel free to convert more.
8170 In the fullness of time, I'll do away with the STACK type altogether.
8173 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8174 specified in <certfile> by updating the entry in the index.txt file.
8175 This way one no longer has to edit the index.txt file manually for
8176 revoking a certificate. The -revoke option does the gory details now.
8177 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8179 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8180 `-text' option at all and this way the `-noout -text' combination was
8181 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8182 [Ralf S. Engelschall]
8184 *) Make sure a corresponding plain text error message exists for the
8185 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8186 verify callback function determined that a certificate was revoked.
8187 [Ralf S. Engelschall]
8189 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8190 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8191 all available cipers including rc5, which was forgotten until now.
8192 In order to let the testing shell script know which algorithms
8193 are available, a new (up to now undocumented) command
8194 "openssl list-cipher-commands" is used.
8197 *) Bugfix: s_client occasionally would sleep in select() when
8198 it should have checked SSL_pending() first.
8201 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8202 the raw DSA values prior to ASN.1 encoding.
8205 *) Tweaks to Configure
8206 [Niels Poppe <niels@netbox.org>]
8208 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8212 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8215 *) New config option to avoid instructions that are illegal on the 80386.
8216 The default code is faster, but requires at least a 486.
8219 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8220 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8221 same as SSL2_VERSION anyway.
8224 *) New "-showcerts" option for s_client.
8227 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8228 application. Various cleanups and fixes.
8231 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8232 modify error routines to work internally. Add error codes and PBE init
8233 to library startup routines.
8236 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8237 packing functions to asn1 and evp. Changed function names and error
8238 codes along the way.
8241 *) PKCS12 integration: and so it begins... First of several patches to
8242 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8243 objects to objects.h
8246 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8247 and display support for Thawte strong extranet extension.
8250 *) Add LinuxPPC support.
8251 [Jeff Dubrule <igor@pobox.org>]
8253 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8254 bn_div_words in alpha.s.
8255 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8257 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8258 OAEP isn't supported when OpenSSL is built with RSAref.
8259 [Ulf Moeller <ulf@fitug.de>]
8261 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8262 so they no longer are missing under -DNOPROTO.
8263 [Soren S. Jorvang <soren@t.dk>]
8266 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8268 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8269 doesn't work when the session is reused. Coming soon!
8272 *) Fix a security hole, that allows sessions to be reused in the wrong
8273 context thus bypassing client cert protection! All software that uses
8274 client certs and session caches in multiple contexts NEEDS PATCHING to
8275 allow session reuse! A fuller solution is in the works.
8276 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8278 *) Some more source tree cleanups (removed obsolete files
8279 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8280 permission on "config" script to be executable) and a fix for the INSTALL
8282 [Ulf Moeller <ulf@fitug.de>]
8284 *) Remove some legacy and erroneous uses of malloc, free instead of
8286 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8288 *) Make rsa_oaep_test return non-zero on error.
8289 [Ulf Moeller <ulf@fitug.de>]
8291 *) Add support for native Solaris shared libraries. Configure
8292 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8293 if someone would make that last step automatic.
8294 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8296 *) ctx_size was not built with the right compiler during "make links". Fixed.
8299 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8300 except NULL ciphers". This means the default cipher list will no longer
8301 enable NULL ciphers. They need to be specifically enabled e.g. with
8302 the string "DEFAULT:eNULL".
8305 *) Fix to RSA private encryption routines: if p < q then it would
8306 occasionally produce an invalid result. This will only happen with
8307 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8310 *) Be less restrictive and allow also `perl util/perlpath.pl
8311 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8312 because this way one can also use an interpreter named `perl5' (which is
8313 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8314 installed as `perl').
8315 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8317 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8318 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8320 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8321 advapi32.lib to Win32 build and change the pem test comparision
8322 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8323 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8324 and crypto/des/ede_cbcm_enc.c.
8327 *) DES quad checksum was broken on big-endian architectures. Fixed.
8330 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8331 Win32 test batch file so it (might) work again. The Win32 test batch file
8332 is horrible: I feel ill....
8335 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8336 in e_os.h. Audit of header files to check ANSI and non ANSI
8337 sections: 10 functions were absent from non ANSI section and not exported
8338 from Windows DLLs. Fixed up libeay.num for new functions.
8341 *) Make `openssl version' output lines consistent.
8342 [Ralf S. Engelschall]
8344 *) Fix Win32 symbol export lists for BIO functions: Added
8345 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8346 to ms/libeay{16,32}.def.
8347 [Ralf S. Engelschall]
8349 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8350 fine under Unix and passes some trivial tests I've now added. But the
8351 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8352 added to make sure no one expects that this stuff really works in the
8353 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8354 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8356 [Ralf S. Engelschall]
8358 *) Fix the generation of two part addresses in perl.
8359 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8361 *) Add config entry for Linux on MIPS.
8362 [John Tobey <jtobey@channel1.com>]
8364 *) Make links whenever Configure is run, unless we are on Windoze.
8367 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8368 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8372 *) Add a useful kludge to allow package maintainers to specify compiler and
8373 other platforms details on the command line without having to patch the
8374 Configure script everytime: One now can use ``perl Configure
8375 <id>:<details>'', i.e. platform ids are allowed to have details appended
8376 to them (seperated by colons). This is treated as there would be a static
8377 pre-configured entry in Configure's %table under key <id> with value
8378 <details> and ``perl Configure <id>'' is called. So, when you want to
8379 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8380 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8381 now, which overrides the FreeBSD-elf entry on-the-fly.
8382 [Ralf S. Engelschall]
8384 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8387 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8388 on the `perl Configure ...' command line. This way one can compile
8389 OpenSSL libraries with Position Independent Code (PIC) which is needed
8390 for linking it into DSOs.
8391 [Ralf S. Engelschall]
8393 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8397 *) Cleaned up the LICENSE document: The official contact for any license
8398 questions now is the OpenSSL core team under openssl-core@openssl.org.
8399 And add a paragraph about the dual-license situation to make sure people
8400 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8401 to the OpenSSL toolkit.
8402 [Ralf S. Engelschall]
8404 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8405 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8406 Additonally cleaned up the `make links' target: Remove unnecessary
8407 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8408 to speed processing and no longer clutter the display with confusing
8409 stuff. Instead only the actually done links are displayed.
8410 [Ralf S. Engelschall]
8412 *) Permit null encryption ciphersuites, used for authentication only. It used
8413 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8414 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8418 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8419 signed attributes when verifying signatures (this would break them),
8420 the detached data encoding was wrong and public keys obtained using
8421 X509_get_pubkey() weren't freed.
8424 *) Add text documentation for the BUFFER functions. Also added a work around
8425 to a Win95 console bug. This was triggered by the password read stuff: the
8426 last character typed gets carried over to the next fread(). If you were
8427 generating a new cert request using 'req' for example then the last
8428 character of the passphrase would be CR which would then enter the first
8432 *) Added the new `Includes OpenSSL Cryptography Software' button as
8433 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8434 button and can be used by applications based on OpenSSL to show the
8435 relationship to the OpenSSL project.
8436 [Ralf S. Engelschall]
8438 *) Remove confusing variables in function signatures in files
8439 ssl/ssl_lib.c and ssl/ssl.h.
8440 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8442 *) Don't install bss_file.c under PREFIX/include/
8443 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8445 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8446 functions that return function pointers and has support for NT specific
8447 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8448 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8449 unsigned to signed types: this was killing the Win32 compile.
8452 *) Add new certificate file to stack functions,
8453 SSL_add_dir_cert_subjects_to_stack() and
8454 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8455 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8456 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8457 This means that Apache-SSL and similar packages don't have to mess around
8458 to add as many CAs as they want to the preferred list.
8461 *) Experiment with doxygen documentation. Currently only partially applied to
8463 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8464 openssl.doxy as the configuration file.
8467 *) Get rid of remaining C++-style comments which strict C compilers hate.
8468 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8470 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8471 compiled in by default: it has problems with large keys.
8474 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8475 DH private keys and/or callback functions which directly correspond to
8476 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8477 is needed for applications which have to configure certificates on a
8478 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8480 For the RSA certificate situation is makes no difference, but
8481 for the DSA certificate situation this fixes the "no shared cipher"
8482 problem where the OpenSSL cipher selection procedure failed because the
8483 temporary keys were not overtaken from the context and the API provided
8484 no way to reconfigure them.
8485 The new functions now let applications reconfigure the stuff and they
8486 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8487 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8488 non-public-API function ssl_cert_instantiate() is used as a helper
8489 function and also to reduce code redundancy inside ssl_rsa.c.
8490 [Ralf S. Engelschall]
8492 *) Move s_server -dcert and -dkey options out of the undocumented feature
8493 area because they are useful for the DSA situation and should be
8494 recognized by the users.
8495 [Ralf S. Engelschall]
8497 *) Fix the cipher decision scheme for export ciphers: the export bits are
8498 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8499 SSL_EXP_MASK. So, the original variable has to be used instead of the
8500 already masked variable.
8501 [Richard Levitte <levitte@stacken.kth.se>]
8503 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8504 [Richard Levitte <levitte@stacken.kth.se>]
8506 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8507 from `int' to `unsigned int' because it's a length and initialized by
8508 EVP_DigestFinal() which expects an `unsigned int *'.
8509 [Richard Levitte <levitte@stacken.kth.se>]
8511 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8512 script. Instead use the usual Shell->Perl transition trick.
8513 [Ralf S. Engelschall]
8515 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8516 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8517 -noout -modulus' as it's already the case for `openssl rsa -noout
8518 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8519 currently the public key is printed (a decision which was already done by
8520 `openssl dsa -modulus' in the past) which serves a similar purpose.
8521 Additionally the NO_RSA no longer completely removes the whole -modulus
8522 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8524 [Ralf S. Engelschall]
8526 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8527 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8528 [Arne Ansper <arne@ats.cyber.ee>]
8530 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8531 to be added. Now both 'req' and 'ca' can use new objects defined in the
8535 *) Add cool BIO that does syslog (or event log on NT).
8536 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8538 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8539 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8540 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8541 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8544 *) Add preliminary config info for new extension code.
8547 *) Make RSA_NO_PADDING really use no padding.
8548 [Ulf Moeller <ulf@fitug.de>]
8550 *) Generate errors when private/public key check is done.
8553 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8554 for some CRL extensions and new objects added.
8557 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8558 key usage extension and fuller support for authority key id.
8561 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8562 padding method for RSA, which is recommended for new applications in PKCS
8563 #1 v2.0 (RFC 2437, October 1998).
8564 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8565 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8566 against Bleichbacher's attack on RSA.
8567 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8570 *) Updates to the new SSL compression code
8571 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8573 *) Fix so that the version number in the master secret, when passed
8574 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8575 (because the server will not accept higher), that the version number
8576 is 0x03,0x01, not 0x03,0x00
8577 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8579 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8580 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8581 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8584 *) Support for RAW extensions where an arbitrary extension can be
8585 created by including its DER encoding. See apps/openssl.cnf for
8589 *) Make sure latest Perl versions don't interpret some generated C array
8590 code as Perl array code in the crypto/err/err_genc.pl script.
8591 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8593 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8594 not many people have the assembler. Various Win32 compilation fixes and
8595 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8599 *) Modify configure script 'Configure' to automatically create crypto/date.h
8600 file under Win32 and also build pem.h from pem.org. New script
8601 util/mkfiles.pl to create the MINFO file on environments that can't do a
8602 'make files': perl util/mkfiles.pl >MINFO should work.
8605 *) Major rework of DES function declarations, in the pursuit of correctness
8606 and purity. As a result, many evil casts evaporated, and some weirdness,
8607 too. You may find this causes warnings in your code. Zapping your evil
8608 casts will probably fix them. Mostly.
8611 *) Fix for a typo in asn1.h. Bug fix to object creation script
8612 obj_dat.pl. It considered a zero in an object definition to mean
8613 "end of object": none of the objects in objects.h have any zeros
8614 so it wasn't spotted.
8615 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8617 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8618 Masking (CBCM). In the absence of test vectors, the best I have been able
8619 to do is check that the decrypt undoes the encrypt, so far. Send me test
8620 vectors if you have them.
8623 *) Correct calculation of key length for export ciphers (too much space was
8624 allocated for null ciphers). This has not been tested!
8627 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8628 message is now correct (it understands "crypto" and "ssl" on its
8629 command line). There is also now an "update" option. This will update
8630 the util/ssleay.num and util/libeay.num files with any new functions.
8632 perl util/mkdef.pl crypto ssl update
8633 it will update them.
8636 *) Overhauled the Perl interface (perl/*):
8637 - ported BN stuff to OpenSSL's different BN library
8638 - made the perl/ source tree CVS-aware
8639 - renamed the package from SSLeay to OpenSSL (the files still contain
8640 their history because I've copied them in the repository)
8641 - removed obsolete files (the test scripts will be replaced
8642 by better Test::Harness variants in the future)
8643 [Ralf S. Engelschall]
8645 *) First cut for a very conservative source tree cleanup:
8646 1. merge various obsolete readme texts into doc/ssleay.txt
8647 where we collect the old documents and readme texts.
8648 2. remove the first part of files where I'm already sure that we no
8649 longer need them because of three reasons: either they are just temporary
8650 files which were left by Eric or they are preserved original files where
8651 I've verified that the diff is also available in the CVS via "cvs diff
8652 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8653 the crypto/md/ stuff).
8654 [Ralf S. Engelschall]
8656 *) More extension code. Incomplete support for subject and issuer alt
8657 name, issuer and authority key id. Change the i2v function parameters
8658 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8659 what that's for :-) Fix to ASN1 macro which messed up
8660 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8663 *) Preliminary support for ENUMERATED type. This is largely copied from the
8667 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8668 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8670 *) Make sure `make rehash' target really finds the `openssl' program.
8671 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8673 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8674 like to hear about it if this slows down other processors.
8677 *) Add CygWin32 platform information to Configure script.
8678 [Alan Batie <batie@aahz.jf.intel.com>]
8680 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8681 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8683 *) New program nseq to manipulate netscape certificate sequences
8686 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8690 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8691 but the BN code had some problems that would cause failures when
8692 doing certificate verification and some other functions.
8693 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8695 *) Add ASN1 and PEM code to support netscape certificate sequences.
8698 *) Add ASN1 and PEM code to support netscape certificate sequences.
8701 *) Add several PKIX and private extended key usage OIDs.
8704 *) Modify the 'ca' program to handle the new extension code. Modify
8705 openssl.cnf for new extension format, add comments.
8708 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8709 and add a sample to openssl.cnf so req -x509 now adds appropriate
8713 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8714 error code, add initial support to X509_print() and x509 application.
8717 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8718 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8719 stuff is currently isolated and isn't even compiled yet.
8722 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8723 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8724 Removed the versions check from X509 routines when loading extensions:
8725 this allows certain broken certificates that don't set the version
8726 properly to be processed.
8729 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8730 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8731 can still be regenerated with "make depend".
8734 *) Spelling mistake in C version of CAST-128.
8735 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8737 *) Changes to the error generation code. The perl script err-code.pl
8738 now reads in the old error codes and retains the old numbers, only
8739 adding new ones if necessary. It also only changes the .err files if new
8740 codes are added. The makefiles have been modified to only insert errors
8741 when needed (to avoid needlessly modifying header files). This is done
8742 by only inserting errors if the .err file is newer than the auto generated
8743 C file. To rebuild all the error codes from scratch (the old behaviour)
8744 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8745 or delete all the .err files.
8748 *) CAST-128 was incorrectly implemented for short keys. The C version has
8749 been fixed, but is untested. The assembler versions are also fixed, but
8750 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8751 to regenerate it if needed.
8752 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8753 Hagino <itojun@kame.net>]
8755 *) File was opened incorrectly in randfile.c.
8756 [Ulf Möller <ulf@fitug.de>]
8758 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8759 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8760 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8761 al: it's just almost always a UTCTime. Note this patch adds new error
8762 codes so do a "make errors" if there are problems.
8765 *) Correct Linux 1 recognition in config.
8766 [Ulf Möller <ulf@fitug.de>]
8768 *) Remove pointless MD5 hash when using DSA keys in ca.
8769 [Anonymous <nobody@replay.com>]
8771 *) Generate an error if given an empty string as a cert directory. Also
8772 generate an error if handed NULL (previously returned 0 to indicate an
8773 error, but didn't set one).
8774 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8776 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8779 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8780 parameters. This was causing a warning which killed off the Win32 compile.
8783 *) Remove C++ style comments from crypto/bn/bn_local.h.
8784 [Neil Costigan <neil.costigan@celocom.com>]
8786 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8787 based on a text string, looking up short and long names and finally
8788 "dot" format. The "dot" format stuff didn't work. Added new function
8789 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8790 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8791 OID is not part of the table.
8794 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8795 X509_LOOKUP_by_alias().
8798 *) Sort openssl functions by name.
8801 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8802 encryption from sample DSA keys (in case anyone is interested the password
8806 *) Make _all_ *_free functions accept a NULL pointer.
8807 [Frans Heymans <fheymans@isaserver.be>]
8809 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8811 [Anonymous <nobody@replay.com>]
8813 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8814 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8816 *) Don't blow it for numeric -newkey arguments to apps/req.
8817 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8819 *) Temp key "for export" tests were wrong in s3_srvr.c.
8820 [Anonymous <nobody@replay.com>]
8822 *) Add prototype for temp key callback functions
8823 SSL_CTX_set_tmp_{rsa,dh}_callback().
8826 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8827 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8830 *) X509_name_add_entry() freed the wrong thing after an error.
8831 [Arne Ansper <arne@ats.cyber.ee>]
8833 *) rsa_eay.c would attempt to free a NULL context.
8834 [Arne Ansper <arne@ats.cyber.ee>]
8836 *) BIO_s_socket() had a broken should_retry() on Windoze.
8837 [Arne Ansper <arne@ats.cyber.ee>]
8839 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8840 [Arne Ansper <arne@ats.cyber.ee>]
8842 *) Make sure the already existing X509_STORE->depth variable is initialized
8843 in X509_STORE_new(), but document the fact that this variable is still
8844 unused in the certificate verification process.
8845 [Ralf S. Engelschall]
8847 *) Fix the various library and apps files to free up pkeys obtained from
8848 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8851 *) Fix reference counting in X509_PUBKEY_get(). This makes
8852 demos/maurice/example2.c work, amongst others, probably.
8853 [Steve Henson and Ben Laurie]
8855 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8856 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8857 are no longer created. This way we have a single and consistent command
8858 line interface `openssl <command>', similar to `cvs <command>'.
8859 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8861 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8862 BIT STRING wrapper always have zero unused bits.
8865 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8868 *) Make the top-level INSTALL documentation easier to understand.
8871 *) Makefiles updated to exit if an error occurs in a sub-directory
8872 make (including if user presses ^C) [Paul Sutton]
8874 *) Make Montgomery context stuff explicit in RSA data structure.
8877 *) Fix build order of pem and err to allow for generated pem.h.
8880 *) Fix renumbering bug in X509_NAME_delete_entry().
8883 *) Enhanced the err-ins.pl script so it makes the error library number
8884 global and can add a library name. This is needed for external ASN1 and
8885 other error libraries.
8888 *) Fixed sk_insert which never worked properly.
8891 *) Fix ASN1 macros so they can handle indefinite length construted
8892 EXPLICIT tags. Some non standard certificates use these: they can now
8896 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8897 into a single doc/ssleay.txt bundle. This way the information is still
8898 preserved but no longer messes up this directory. Now it's new room for
8899 the new set of documenation files.
8900 [Ralf S. Engelschall]
8902 *) SETs were incorrectly DER encoded. This was a major pain, because they
8903 shared code with SEQUENCEs, which aren't coded the same. This means that
8904 almost everything to do with SETs or SEQUENCEs has either changed name or
8905 number of arguments.
8906 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8908 *) Fix test data to work with the above.
8911 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8912 was already fixed by Eric for 0.9.1 it seems.
8913 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8915 *) Autodetect FreeBSD3.
8918 *) Fix various bugs in Configure. This affects the following platforms:
8922 unixware-2.0-pentium
8926 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8927 before they are needed.
8930 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8934 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8936 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8937 changed SSLeay to OpenSSL in version strings.
8938 [Ralf S. Engelschall]
8940 *) Some fixups to the top-level documents.
8943 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8944 because the symlink to include/ was missing.
8945 [Ralf S. Engelschall]
8947 *) Incorporated the popular no-RSA/DSA-only patches
8948 which allow to compile a RSA-free SSLeay.
8949 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8951 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8952 when "ssleay" is still not found.
8953 [Ralf S. Engelschall]
8955 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8956 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8958 *) Updated the README file.
8959 [Ralf S. Engelschall]
8961 *) Added various .cvsignore files in the CVS repository subdirs
8962 to make a "cvs update" really silent.
8963 [Ralf S. Engelschall]
8965 *) Recompiled the error-definition header files and added
8966 missing symbols to the Win32 linker tables.
8967 [Ralf S. Engelschall]
8969 *) Cleaned up the top-level documents;
8970 o new files: CHANGES and LICENSE
8971 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8972 o merged COPYRIGHT into LICENSE
8973 o removed obsolete TODO file
8974 o renamed MICROSOFT to INSTALL.W32
8975 [Ralf S. Engelschall]
8977 *) Removed dummy files from the 0.9.1b source tree:
8978 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8979 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8980 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8981 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8982 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8983 [Ralf S. Engelschall]
8985 *) Added various platform portability fixes.
8988 *) The Genesis of the OpenSSL rpject:
8989 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8990 Young and Tim J. Hudson created while they were working for C2Net until
8992 [The OpenSSL Project]
8995 Changes between 0.9.0b and 0.9.1b [not released]
8997 *) Updated a few CA certificates under certs/
9000 *) Changed some BIGNUM api stuff.
9003 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9004 DGUX x86, Linux Alpha, etc.
9007 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9008 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9012 *) Add -strparse option to asn1pars program which parses nested
9014 [Dr Stephen Henson <shenson@bigfoot.com>]
9016 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9019 *) DSA fix for "ca" program.
9022 *) Added "-genkey" option to "dsaparam" program.
9025 *) Added RIPE MD160 (rmd160) message digest.
9028 *) Added -a (all) option to "ssleay version" command.
9031 *) Added PLATFORM define which is the id given to Configure.
9034 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9037 *) Extended the ASN.1 parser routines.
9040 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9043 *) Added a BN_CTX to the BN library.
9046 *) Fixed the weak key values in DES library
9049 *) Changed API in EVP library for cipher aliases.
9052 *) Added support for RC2/64bit cipher.
9055 *) Converted the lhash library to the crypto/mem.c functions.
9058 *) Added more recognized ASN.1 object ids.
9061 *) Added more RSA padding checks for SSL/TLS.
9064 *) Added BIO proxy/filter functionality.
9067 *) Added extra_certs to SSL_CTX which can be used
9068 send extra CA certificates to the client in the CA cert chain sending
9069 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9072 *) Now Fortezza is denied in the authentication phase because
9073 this is key exchange mechanism is not supported by SSLeay at all.
9076 *) Additional PKCS1 checks.
9079 *) Support the string "TLSv1" for all TLS v1 ciphers.
9082 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9083 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9086 *) Fixed a few memory leaks.
9089 *) Fixed various code and comment typos.
9092 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9093 bytes sent in the client random.
9094 [Edward Bishop <ebishop@spyglass.com>]