5 Changes between 0.9.8j and 0.9.9 [xx XXX xxxx]
7 *) Support GeneralizedTime in ca utility.
8 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
10 *) Enhance the hash format used for certificate directory links. The new
11 form uses the canonical encoding (meaning equivalent names will work
12 even if they aren't identical) and uses SHA1 instead of MD5. This form
13 is incompatible with the older format and as a result c_rehash should
14 be used to rebuild symbolic links.
17 *) Make PKCS#8 the default write format for private keys, replacing the
18 traditional format. This form is standardised, more secure and doesn't
19 include an implicit MD5 dependency.
22 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
23 committed to OpenSSL should pass this lot as a minimum.
26 *) Add session ticket override functionality for use by EAP-FAST.
27 [Jouni Malinen <j@w1.fi>]
29 *) Modify HMAC functions to return a value. Since these can be implemented
30 in an ENGINE errors can occur.
33 *) Type-checked OBJ_bsearch_ex.
36 *) Type-checked OBJ_bsearch. Also some constification necessitated
37 by type-checking. Still to come: TXT_DB, bsearch(?),
38 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
42 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
43 seconds to a tm structure directly, instead of going through OS
44 specific date routines. This avoids any issues with OS routines such
45 as the year 2038 bug. New *_adj() functions for ASN1 time structures
46 and X509_time_adj_ex() to cover the extended range. The existing
47 X509_time_adj() is still usable and will no longer have any date issues.
50 *) Delta CRL support. New use deltas option which will attempt to locate
51 and search any appropriate delta CRLs available.
53 This work was sponsored by Google.
56 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
57 code and add additional score elements. Validate alternate CRL paths
58 as part of the CRL checking and indicate a new error "CRL path validation
59 error" in this case. Applications wanting additional details can use
60 the verify callback and check the new "parent" field. If this is not
61 NULL CRL path validation is taking place. Existing applications wont
62 see this because it requires extended CRL support which is off by
65 This work was sponsored by Google.
68 *) Support for freshest CRL extension.
70 This work was sponsored by Google.
73 *) Initial indirect CRL support. Currently only supported in the CRLs
74 passed directly and not via lookup. Process certificate issuer
75 CRL entry extension and lookup CRL entries by bother issuer name
76 and serial number. Check and process CRL issuer entry in IDP extension.
78 This work was sponsored by Google.
81 *) Add support for distinct certificate and CRL paths. The CRL issuer
82 certificate is validated separately in this case. Only enabled if
83 an extended CRL support flag is set: this flag will enable additional
84 CRL functionality in future.
86 This work was sponsored by Google.
89 *) Add support for policy mappings extension.
91 This work was sponsored by Google.
94 *) Fixes to pathlength constraint, self issued certificate handling,
95 policy processing to align with RFC3280 and PKITS tests.
97 This work was sponsored by Google.
100 *) Support for name constraints certificate extension. DN, email, DNS
101 and URI types are currently supported.
103 This work was sponsored by Google.
106 *) To cater for systems that provide a pointer-based thread ID rather
107 than numeric, deprecate the current numeric thread ID mechanism and
108 replace it with a structure and associated callback type. This
109 mechanism allows a numeric "hash" to be extracted from a thread ID in
110 either case, and on platforms where pointers are larger than 'long',
111 mixing is done to help ensure the numeric 'hash' is usable even if it
112 can't be guaranteed unique. The default mechanism is to use "&errno"
113 as a pointer-based thread ID to distinguish between threads.
115 Applications that want to provide their own thread IDs should now use
116 CRYPTO_THREADID_set_callback() to register a callback that will call
117 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
119 Note that ERR_remove_state() is now deprecated, because it is tied
120 to the assumption that thread IDs are numeric. ERR_remove_state(0)
121 to free the current thread's error state should be replaced by
122 ERR_remove_thread_state(NULL).
124 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
125 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
126 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
127 application was previously providing a numeric thread callback that
128 was inappropriate for distinguishing threads, then uniqueness might
129 have been obtained with &errno that happened immediately in the
130 intermediate development versions of OpenSSL; this is no longer the
131 case, the numeric thread callback will now override the automatic use
133 [Geoff Thorpe, with help from Bodo Moeller]
135 *) Initial support for different CRL issuing certificates. This covers a
136 simple case where the self issued certificates in the chain exist and
137 the real CRL issuer is higher in the existing chain.
139 This work was sponsored by Google.
142 *) Removed effectively defunct crypto/store from the build.
145 *) Revamp of STACK to provide stronger type-checking. Still to come:
146 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
147 ASN1_STRING, CONF_VALUE.
150 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
151 RAM on SSL connections. This option can save about 34k per idle SSL.
154 *) Revamp of LHASH to provide stronger type-checking. Still to come:
155 STACK, TXT_DB, bsearch, qsort.
158 *) Initial support for Cryptographic Message Syntax (aka CMS) based
159 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
160 support for data, signedData, compressedData, digestedData and
161 encryptedData, envelopedData types included. Scripts to check against
162 RFC4134 examples draft and interop and consistency checks of many
163 content types and variants.
166 *) Add options to enc utility to support use of zlib compression BIO.
169 *) Extend mk1mf to support importing of options and assembly language
170 files from Configure script, currently only included in VC-WIN32.
171 The assembly language rules can now optionally generate the source
172 files from the associated perl scripts.
175 *) Implement remaining functionality needed to support GOST ciphersuites.
176 Interop testing has been performed using CryptoPro implementations.
177 [Victor B. Wagner <vitus@cryptocom.ru>]
179 *) s390x assembler pack.
182 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
186 *) Implement Opaque PRF Input TLS extension as specified in
187 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
188 official specification yet and no extension type assignment by
189 IANA exists, this extension (for now) will have to be explicitly
190 enabled when building OpenSSL by providing the extension number
191 to use. For example, specify an option
193 -DTLSEXT_TYPE_opaque_prf_input=0x9527
195 to the "config" or "Configure" script to enable the extension,
196 assuming extension number 0x9527 (which is a completely arbitrary
197 and unofficial assignment based on the MD5 hash of the Internet
198 Draft). Note that by doing so, you potentially lose
199 interoperability with other TLS implementations since these might
200 be using the same extension number for other purposes.
202 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
203 opaque PRF input value to use in the handshake. This will create
204 an interal copy of the length-'len' string at 'src', and will
205 return non-zero for success.
207 To get more control and flexibility, provide a callback function
210 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
211 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
215 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
218 Callback function 'cb' will be called in handshakes, and is
219 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
220 Argument 'arg' is for application purposes (the value as given to
221 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
222 be provided to the callback function). The callback function
223 has to return non-zero to report success: usually 1 to use opaque
224 PRF input just if possible, or 2 to enforce use of the opaque PRF
225 input. In the latter case, the library will abort the handshake
226 if opaque PRF input is not successfully negotiated.
228 Arguments 'peerinput' and 'len' given to the callback function
229 will always be NULL and 0 in the case of a client. A server will
230 see the client's opaque PRF input through these variables if
231 available (NULL and 0 otherwise). Note that if the server
232 provides an opaque PRF input, the length must be the same as the
233 length of the client's opaque PRF input.
235 Note that the callback function will only be called when creating
236 a new session (session resumption can resume whatever was
237 previously negotiated), and will not be called in SSL 2.0
238 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
239 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
240 for applications that need to enforce opaque PRF input.
244 *) Update ssl code to support digests other than SHA1+MD5 for handshake
247 [Victor B. Wagner <vitus@cryptocom.ru>]
249 *) Add RFC4507 support to OpenSSL. This includes the corrections in
250 RFC4507bis. The encrypted ticket format is an encrypted encoded
251 SSL_SESSION structure, that way new session features are automatically
254 If a client application caches session in an SSL_SESSION structure
255 support is transparent because tickets are now stored in the encoded
258 The SSL_CTX structure automatically generates keys for ticket
259 protection in servers so again support should be possible
260 with no application modification.
262 If a client or server wishes to disable RFC4507 support then the option
263 SSL_OP_NO_TICKET can be set.
265 Add a TLS extension debugging callback to allow the contents of any client
266 or server extensions to be examined.
268 This work was sponsored by Google.
271 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
272 OpenSSL should now compile cleanly on gcc 4.2
273 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
275 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
276 support including streaming MAC support: this is required for GOST
278 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
280 *) Add option -stream to use PKCS#7 streaming in smime utility. New
281 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
282 to output in BER and PEM format.
285 *) Experimental support for use of HMAC via EVP_PKEY interface. This
286 allows HMAC to be handled via the EVP_DigestSign*() interface. The
287 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
288 ENGINE support for HMAC keys which are unextractable. New -mac and
289 -macopt options to dgst utility.
292 *) New option -sigopt to dgst utility. Update dgst to use
293 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
294 alternative signing paramaters such as X9.31 or PSS in the dgst
298 *) Change ssl_cipher_apply_rule(), the internal function that does
299 the work each time a ciphersuite string requests enabling
300 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
301 removing ("!foo+bar") a class of ciphersuites: Now it maintains
302 the order of disabled ciphersuites such that those ciphersuites
303 that most recently went from enabled to disabled not only stay
304 in order with respect to each other, but also have higher priority
305 than other disabled ciphersuites the next time ciphersuites are
308 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
309 the same ciphersuites as with "HIGH" alone, but in a specific
310 order where the PSK ciphersuites come first (since they are the
311 most recently disabled ciphersuites when "HIGH" is parsed).
313 Also, change ssl_create_cipher_list() (using this new
314 funcionality) such that between otherwise identical
315 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
319 *) Change ssl_create_cipher_list() so that it automatically
320 arranges the ciphersuites in reasonable order before starting
321 to process the rule string. Thus, the definition for "DEFAULT"
322 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
323 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
324 This makes it much easier to arrive at a reasonable default order
325 in applications for which anonymous ciphers are OK (meaning
326 that you can't actually use DEFAULT).
327 [Bodo Moeller; suggested by Victor Duchovni]
329 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
330 processing) into multiple integers instead of setting
331 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
332 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
333 (These masks as well as the individual bit definitions are hidden
334 away into the non-exported interface ssl/ssl_locl.h, so this
335 change to the definition of the SSL_CIPHER structure shouldn't
336 affect applications.) This give us more bits for each of these
337 categories, so there is no longer a need to coagulate AES128 and
338 AES256 into a single algorithm bit, and to coagulate Camellia128
339 and Camellia256 into a single algorithm bit, which has led to all
342 Thus, among other things, the kludge introduced in 0.9.7m and
343 0.9.8e for masking out AES256 independently of AES128 or masking
344 out Camellia256 independently of AES256 is not needed here in 0.9.9.
346 With the change, we also introduce new ciphersuite aliases that
347 so far were missing: "AES128", "AES256", "CAMELLIA128", and
351 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
352 Use the leftmost N bytes of the signature input if the input is
353 larger than the prime q (with N being the size in bytes of q).
356 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
357 it yet and it is largely untested.
360 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
363 *) Initial incomplete changes to avoid need for function casts in OpenSSL
364 some compilers (gcc 4.2 and later) reject their use. Safestack is
365 reimplemented. Update ASN1 to avoid use of legacy functions.
368 *) Win32/64 targets are linked with Winsock2.
371 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
372 to external functions. This can be used to increase CRL handling
373 efficiency especially when CRLs are very large by (for example) storing
374 the CRL revoked certificates in a database.
377 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
378 new CRLs added to a directory can be used. New command line option
379 -verify_return_error to s_client and s_server. This causes real errors
380 to be returned by the verify callback instead of carrying on no matter
381 what. This reflects the way a "real world" verify callback would behave.
384 *) GOST engine, supporting several GOST algorithms and public key formats.
385 Kindly donated by Cryptocom.
388 *) Partial support for Issuing Distribution Point CRL extension. CRLs
389 partitioned by DP are handled but no indirect CRL or reason partitioning
390 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
391 selected via a scoring technique which handles IDP and AKID in CRLs.
394 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
395 will ultimately be used for all verify operations: this will remove the
396 X509_STORE dependency on certificate verification and allow alternative
397 lookup methods. X509_STORE based implementations of these two callbacks.
400 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
401 Modify get_crl() to find a valid (unexpired) CRL if possible.
404 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
405 this would be called X509_CRL_cmp() but that name is already used by
406 a function that just compares CRL issuer names. Cache several CRL
407 extensions in X509_CRL structure and cache CRLDP in X509.
410 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
411 this maps equivalent X509_NAME structures into a consistent structure.
412 Name comparison can then be performed rapidly using memcmp().
415 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
419 *) Allow digests to supply their own micalg string for S/MIME type using
420 the ctrl EVP_MD_CTRL_MICALG.
423 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
424 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
425 ctrl. It can then customise the structure before and/or after signing
429 *) New function OBJ_add_sigid() to allow application defined signature OIDs
430 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
431 to free up any added signature OIDs.
434 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
435 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
436 digest and cipher tables. New options added to openssl utility:
437 list-message-digest-algorithms and list-cipher-algorithms.
440 *) Change the array representation of binary polynomials: the list
441 of degrees of non-zero coefficients is now terminated with -1.
442 Previously it was terminated with 0, which was also part of the
443 value; thus, the array representation was not applicable to
444 polynomials where t^0 has coefficient zero. This change makes
445 the array representation useful in a more general context.
448 *) Various modifications and fixes to SSL/TLS cipher string
449 handling. For ECC, the code now distinguishes between fixed ECDH
450 with RSA certificates on the one hand and with ECDSA certificates
451 on the other hand, since these are separate ciphersuites. The
452 unused code for Fortezza ciphersuites has been removed.
454 For consistency with EDH, ephemeral ECDH is now called "EECDH"
455 (not "ECDHE"). For consistency with the code for DH
456 certificates, use of ECDH certificates is now considered ECDH
457 authentication, not RSA or ECDSA authentication (the latter is
458 merely the CA's signing algorithm and not actively used in the
461 The temporary ciphersuite alias "ECCdraft" is no longer
462 available, and ECC ciphersuites are no longer excluded from "ALL"
463 and "DEFAULT". The following aliases now exist for RFC 4492
464 ciphersuites, most of these by analogy with the DH case:
466 kECDHr - ECDH cert, signed with RSA
467 kECDHe - ECDH cert, signed with ECDSA
468 kECDH - ECDH cert (signed with either RSA or ECDSA)
469 kEECDH - ephemeral ECDH
470 ECDH - ECDH cert or ephemeral ECDH
476 AECDH - anonymous ECDH
477 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
481 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
482 Use correct micalg parameters depending on digest(s) in signed message.
485 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
486 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
489 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
490 an engine to register a method. Add ENGINE lookups for methods and
491 functional reference processing.
494 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
495 EVP_{Sign,Verify}* which allow an application to customise the signature
499 *) New -resign option to smime utility. This adds one or more signers
500 to an existing PKCS#7 signedData structure. Also -md option to use an
501 alternative message digest algorithm for signing.
504 *) Tidy up PKCS#7 routines and add new functions to make it easier to
505 create PKCS7 structures containing multiple signers. Update smime
506 application to support multiple signers.
509 *) New -macalg option to pkcs12 utility to allow setting of an alternative
513 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
514 Reorganize PBE internals to lookup from a static table using NIDs,
515 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
516 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
517 PRF which will be automatically used with PBES2.
520 *) Replace the algorithm specific calls to generate keys in "req" with the
524 *) Update PKCS#7 enveloped data routines to use new API. This is now
525 supported by any public key method supporting the encrypt operation. A
526 ctrl is added to allow the public key algorithm to examine or modify
527 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
531 *) Add a ctrl to asn1 method to allow a public key algorithm to express
532 a default digest type to use. In most cases this will be SHA1 but some
533 algorithms (such as GOST) need to specify an alternative digest. The
534 return value indicates how strong the prefernce is 1 means optional and
535 2 is mandatory (that is it is the only supported type). Modify
536 ASN1_item_sign() to accept a NULL digest argument to indicate it should
537 use the default md. Update openssl utilities to use the default digest
538 type for signing if it is not explicitly indicated.
541 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
542 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
543 signing method from the key type. This effectively removes the link
544 between digests and public key types.
547 *) Add an OID cross reference table and utility functions. Its purpose is to
548 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
549 rsaEncryption. This will allow some of the algorithm specific hackery
550 needed to use the correct OID to be removed.
553 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
554 structures for PKCS7_sign(). They are now set up by the relevant public
558 *) Add provisional EC pkey method with support for ECDSA and ECDH.
561 *) Add support for key derivation (agreement) in the API, DH method and
565 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
566 public and private key formats. As a side effect these add additional
567 command line functionality not previously available: DSA signatures can be
568 generated and verified using pkeyutl and DH key support and generation in
573 [Oliver Tappe <zooey@hirschkaefer.de>]
575 *) New make target "install_html_docs" installs HTML renditions of the
577 [Oliver Tappe <zooey@hirschkaefer.de>]
579 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
580 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
581 support key and parameter generation and add initial key generation
582 functionality for RSA.
585 *) Add functions for main EVP_PKEY_method operations. The undocumented
586 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
587 EVP_PKEY_{encrypt,decrypt}_old.
590 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
591 key API, doesn't do much yet.
594 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
595 public key algorithms. New option to openssl utility:
596 "list-public-key-algorithms" to print out info.
599 *) Implement the Supported Elliptic Curves Extension for
600 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
603 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
604 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
607 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
608 utilities such as rsa, dsa, dsaparam etc except they process any key
612 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
613 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
614 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
618 *) Initial support for pluggable public key ASN1.
619 De-spaghettify the public key ASN1 handling. Move public and private
620 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
621 algorithm specific handling to a single module within the relevant
622 algorithm directory. Add functions to allow (near) opaque processing
623 of public and private key structures.
626 *) Implement the Supported Point Formats Extension for
627 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
630 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
631 for the psk identity [hint] and the psk callback functions to the
632 SSL_SESSION, SSL and SSL_CTX structure.
635 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
639 SSL_CTX_use_psk_identity_hint
640 SSL_get_psk_identity_hint
642 SSL_use_psk_identity_hint
644 [Mika Kousa and Pasi Eronen of Nokia Corporation]
646 *) Add RFC 3161 compliant time stamp request creation, response generation
647 and response verification functionality.
648 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
650 *) Add initial support for TLS extensions, specifically for the server_name
651 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
652 have new members for a host name. The SSL data structure has an
653 additional member SSL_CTX *initial_ctx so that new sessions can be
654 stored in that context to allow for session resumption, even after the
655 SSL has been switched to a new SSL_CTX in reaction to a client's
656 server_name extension.
658 New functions (subject to change):
661 SSL_get_servername_type()
664 New CTRL codes and macros (subject to change):
666 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
667 - SSL_CTX_set_tlsext_servername_callback()
668 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
669 - SSL_CTX_set_tlsext_servername_arg()
670 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
672 openssl s_client has a new '-servername ...' option.
674 openssl s_server has new options '-servername_host ...', '-cert2 ...',
675 '-key2 ...', '-servername_fatal' (subject to change). This allows
676 testing the HostName extension for a specific single host name ('-cert'
677 and '-key' remain fallbacks for handshakes without HostName
678 negotiation). If the unrecogninzed_name alert has to be sent, this by
679 default is a warning; it becomes fatal with the '-servername_fatal'
682 [Peter Sylvester, Remy Allais, Christophe Renou]
684 *) Whirlpool hash implementation is added.
687 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
688 bn(64,32). Because of instruction set limitations it doesn't have
689 any negative impact on performance. This was done mostly in order
690 to make it possible to share assembler modules, such as bn_mul_mont
691 implementations, between 32- and 64-bit builds without hassle.
694 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
695 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
699 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
700 dedicated Montgomery multiplication procedure, is introduced.
701 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
702 "64-bit" performance on certain 32-bit targets.
705 *) New option SSL_OP_NO_COMP to disable use of compression selectively
706 in SSL structures. New SSL ctrl to set maximum send fragment size.
707 Save memory by seeting the I/O buffer sizes dynamically instead of
708 using the maximum available value.
711 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
712 in addition to the text details.
715 *) Very, very preliminary EXPERIMENTAL support for printing of general
716 ASN1 structures. This currently produces rather ugly output and doesn't
717 handle several customised structures at all.
720 *) Integrated support for PVK file format and some related formats such
721 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
722 these in the 'rsa' and 'dsa' utilities.
725 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
728 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
729 place for the (very old) "NETSCAPE" format certificates which are now
730 handled using new ASN1 code equivalents.
733 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
734 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
735 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
738 *) Modify CRL distribution points extension code to print out previously
739 unsupported fields. Enhance extension setting code to allow setting of
743 *) Add print and set support for Issuing Distribution Point CRL extension.
746 *) Change 'Configure' script to enable Camellia by default.
749 Changes between 0.9.8j and 0.9.8k [xx XXX xxxx]
751 *) Set S/MIME signing as the default purpose rather than setting it
752 unconditionally. This allows applications to override it at the store
756 *) Permit restricted recursion of ASN1 strings. This is needed in practice
757 to handle some structures.
760 *) Improve efficiency of mem_gets: don't search whole buffer each time
762 [Jeremy Shapiro <jnshapir@us.ibm.com>]
764 *) New -hex option for openssl rand.
767 *) Print out UTF8String and NumericString when parsing ASN1.
770 *) Support NumericString type for name components.
773 *) Allow CC in the environment to override the automatically chosen
774 compiler. Note that nothing is done to ensure flags work with the
778 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
780 *) Properly check EVP_VerifyFinal() and similar return values
782 [Ben Laurie, Bodo Moeller, Google Security Team]
784 *) Enable TLS extensions by default.
787 *) Allow the CHIL engine to be loaded, whether the application is
788 multithreaded or not. (This does not release the developer from the
789 obligation to set up the dynamic locking callbacks.)
790 [Sander Temme <sander@temme.net>]
792 *) Use correct exit code if there is an error in dgst command.
793 [Steve Henson; problem pointed out by Roland Dirlewanger]
795 *) Tweak Configure so that you need to say "experimental-jpake" to enable
796 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
799 *) Add experimental JPAKE support, including demo authentication in
800 s_client and s_server.
803 *) Set the comparison function in v3_addr_canonize().
804 [Rob Austein <sra@hactrn.net>]
806 *) Add support for XMPP STARTTLS in s_client.
807 [Philip Paeps <philip@freebsd.org>]
809 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
810 to ensure that even with this option, only ciphersuites in the
811 server's preference list will be accepted. (Note that the option
812 applies only when resuming a session, so the earlier behavior was
813 just about the algorithm choice for symmetric cryptography.)
816 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
818 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
819 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
822 *) The fix in 0.9.8c that supposedly got rid of unsafe
823 double-checked locking was incomplete for RSA blinding,
824 addressing just one layer of what turns out to have been
825 doubly unsafe triple-checked locking.
827 So now fix this for real by retiring the MONT_HELPER macro
828 in crypto/rsa/rsa_eay.c.
830 [Bodo Moeller; problem pointed out by Marius Schilder]
832 *) Various precautionary measures:
834 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
836 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
837 (NB: This would require knowledge of the secret session ticket key
838 to exploit, in which case you'd be SOL either way.)
840 - Change bn_nist.c so that it will properly handle input BIGNUMs
841 outside the expected range.
843 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
846 [Neel Mehta, Bodo Moeller]
848 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
849 the load fails. Useful for distros.
850 [Ben Laurie and the FreeBSD team]
852 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
855 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
858 *) Expand ENGINE to support engine supplied SSL client certificate functions.
860 This work was sponsored by Logica.
863 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
864 keystores. Support for SSL/TLS client authentication too.
865 Not compiled unless enable-capieng specified to Configure.
867 This work was sponsored by Logica.
870 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
871 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
872 attribute creation routines such as certifcate requests and PKCS#12
876 Changes between 0.9.8g and 0.9.8h [28 May 2008]
878 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
879 handshake which could lead to a cilent crash as found using the
880 Codenomicon TLS test suite (CVE-2008-1672)
881 [Steve Henson, Mark Cox]
883 *) Fix double free in TLS server name extensions which could lead to
884 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
887 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
889 Clear the error queue to ensure that error entries left from
890 older function calls do not interfere with the correct operation.
891 [Lutz Jaenicke, Erik de Castro Lopo]
893 *) Remove root CA certificates of commercial CAs:
895 The OpenSSL project does not recommend any specific CA and does not
896 have any policy with respect to including or excluding any CA.
897 Therefore it does not make any sense to ship an arbitrary selection
898 of root CA certificates with the OpenSSL software.
901 *) RSA OAEP patches to fix two separate invalid memory reads.
902 The first one involves inputs when 'lzero' is greater than
903 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
904 before the beginning of from). The second one involves inputs where
905 the 'db' section contains nothing but zeroes (there is a one-byte
906 invalid read after the end of 'db').
907 [Ivan Nestlerode <inestlerode@us.ibm.com>]
909 *) Partial backport from 0.9.9-dev:
911 Introduce bn_mul_mont (dedicated Montgomery multiplication
912 procedure) as a candidate for BIGNUM assembler implementation.
913 While 0.9.9-dev uses assembler for various architectures, only
914 x86_64 is available by default here in the 0.9.8 branch, and
915 32-bit x86 is available through a compile-time setting.
917 To try the 32-bit x86 assembler implementation, use Configure
918 option "enable-montasm" (which exists only for this backport).
920 As "enable-montasm" for 32-bit x86 disclaims code stability
921 anyway, in this constellation we activate additional code
922 backported from 0.9.9-dev for further performance improvements,
923 namely BN_from_montgomery_word. (To enable this otherwise,
924 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
926 [Andy Polyakov (backport partially by Bodo Moeller)]
928 *) Add TLS session ticket callback. This allows an application to set
929 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
930 values. This is useful for key rollover for example where several key
931 sets may exist with different names.
934 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
935 This was broken until now in 0.9.8 releases, such that the only way
936 a registered ENGINE could be used (assuming it initialises
937 successfully on the host) was to explicitly set it as the default
938 for the relevant algorithms. This is in contradiction with 0.9.7
939 behaviour and the documentation. With this fix, when an ENGINE is
940 registered into a given algorithm's table of implementations, the
941 'uptodate' flag is reset so that auto-discovery will be used next
942 time a new context for that algorithm attempts to select an
944 [Ian Lister (tweaked by Geoff Thorpe)]
946 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
947 implemention in the following ways:
949 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
952 Lack of BER streaming support means one pass streaming processing is
953 only supported if data is detached: setting the streaming flag is
954 ignored for embedded content.
956 CMS support is disabled by default and must be explicitly enabled
957 with the enable-cms configuration option.
960 *) Update the GMP engine glue to do direct copies between BIGNUM and
961 mpz_t when openssl and GMP use the same limb size. Otherwise the
962 existing "conversion via a text string export" trick is still used.
963 [Paul Sheer <paulsheer@gmail.com>]
965 *) Zlib compression BIO. This is a filter BIO which compressed and
966 uncompresses any data passed through it.
969 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
970 RFC3394 compatible AES key wrapping.
973 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
974 sets string data without copying. X509_ALGOR_set0() and
975 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
976 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
977 from an X509_ATTRIBUTE structure optionally checking it occurs only
978 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
982 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
983 to get the expected BN_FLG_CONSTTIME behavior.
984 [Bodo Moeller (Google)]
988 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
989 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
990 - added some more tests to do_tests.pl
991 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
992 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
993 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
994 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
995 - various changes to netware.pl to enable gcc-cross builds on Win32
997 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
998 - various changes to fix missing prototype warnings
999 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1000 - added AES, WHIRLPOOL and CPUID assembler code to build files
1001 - added missing AES assembler make rules to mk1mf.pl
1002 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1003 [Guenter Knauf <eflash@gmx.net>]
1005 *) Implement certificate status request TLS extension defined in RFC3546.
1006 A client can set the appropriate parameters and receive the encoded
1007 OCSP response via a callback. A server can query the supplied parameters
1008 and set the encoded OCSP response in the callback. Add simplified examples
1009 to s_client and s_server.
1012 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1014 *) Fix various bugs:
1015 + Binary incompatibility of ssl_ctx_st structure
1016 + DTLS interoperation with non-compliant servers
1017 + Don't call get_session_cb() without proposed session
1018 + Fix ia64 assembler code
1019 [Andy Polyakov, Steve Henson]
1021 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1023 *) DTLS Handshake overhaul. There were longstanding issues with
1024 OpenSSL DTLS implementation, which were making it impossible for
1025 RFC 4347 compliant client to communicate with OpenSSL server.
1026 Unfortunately just fixing these incompatibilities would "cut off"
1027 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1028 server keeps tolerating non RFC compliant syntax. The opposite is
1029 not true, 0.9.8f client can not communicate with earlier server.
1030 This update even addresses CVE-2007-4995.
1033 *) Changes to avoid need for function casts in OpenSSL: some compilers
1034 (gcc 4.2 and later) reject their use.
1035 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1038 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1039 RFC4507bis. The encrypted ticket format is an encrypted encoded
1040 SSL_SESSION structure, that way new session features are automatically
1043 If a client application caches session in an SSL_SESSION structure
1044 support is transparent because tickets are now stored in the encoded
1047 The SSL_CTX structure automatically generates keys for ticket
1048 protection in servers so again support should be possible
1049 with no application modification.
1051 If a client or server wishes to disable RFC4507 support then the option
1052 SSL_OP_NO_TICKET can be set.
1054 Add a TLS extension debugging callback to allow the contents of any client
1055 or server extensions to be examined.
1057 This work was sponsored by Google.
1060 *) Add initial support for TLS extensions, specifically for the server_name
1061 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1062 have new members for a host name. The SSL data structure has an
1063 additional member SSL_CTX *initial_ctx so that new sessions can be
1064 stored in that context to allow for session resumption, even after the
1065 SSL has been switched to a new SSL_CTX in reaction to a client's
1066 server_name extension.
1068 New functions (subject to change):
1070 SSL_get_servername()
1071 SSL_get_servername_type()
1074 New CTRL codes and macros (subject to change):
1076 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1077 - SSL_CTX_set_tlsext_servername_callback()
1078 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1079 - SSL_CTX_set_tlsext_servername_arg()
1080 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1082 openssl s_client has a new '-servername ...' option.
1084 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1085 '-key2 ...', '-servername_fatal' (subject to change). This allows
1086 testing the HostName extension for a specific single host name ('-cert'
1087 and '-key' remain fallbacks for handshakes without HostName
1088 negotiation). If the unrecogninzed_name alert has to be sent, this by
1089 default is a warning; it becomes fatal with the '-servername_fatal'
1092 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1094 *) Add AES and SSE2 assembly language support to VC++ build.
1097 *) Mitigate attack on final subtraction in Montgomery reduction.
1100 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1101 (which previously caused an internal error).
1104 *) Squeeze another 10% out of IGE mode when in != out.
1107 *) AES IGE mode speedup.
1108 [Dean Gaudet (Google)]
1110 *) Add the Korean symmetric 128-bit cipher SEED (see
1111 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1112 add SEED ciphersuites from RFC 4162:
1114 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1115 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1116 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1117 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1119 To minimize changes between patchlevels in the OpenSSL 0.9.8
1120 series, SEED remains excluded from compilation unless OpenSSL
1121 is configured with 'enable-seed'.
1122 [KISA, Bodo Moeller]
1124 *) Mitigate branch prediction attacks, which can be practical if a
1125 single processor is shared, allowing a spy process to extract
1126 information. For detailed background information, see
1127 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1128 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1129 and Necessary Software Countermeasures"). The core of the change
1130 are new versions BN_div_no_branch() and
1131 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1132 respectively, which are slower, but avoid the security-relevant
1133 conditional branches. These are automatically called by BN_div()
1134 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1135 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1136 remove a conditional branch.
1138 BN_FLG_CONSTTIME is the new name for the previous
1139 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1140 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1141 in the exponent causes BN_mod_exp_mont() to use the alternative
1142 implementation in BN_mod_exp_mont_consttime().) The old name
1143 remains as a deprecated alias.
1145 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1146 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1147 constant-time implementations for more than just exponentiation.
1148 Here too the old name is kept as a deprecated alias.
1150 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1151 the BN_BLINDING structure gets an independent copy of the
1152 modulus. This means that the previous "BIGNUM *m" argument to
1153 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1154 essentially becomes "const BIGNUM *m", although we can't actually
1155 change this in the header file before 0.9.9. It allows
1156 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1157 enable BN_FLG_CONSTTIME.
1159 [Matthew D Wood (Intel Corp)]
1161 *) In the SSL/TLS server implementation, be strict about session ID
1162 context matching (which matters if an application uses a single
1163 external cache for different purposes). Previously,
1164 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1165 set. This did ensure strict client verification, but meant that,
1166 with applications using a single external cache for quite
1167 different requirements, clients could circumvent ciphersuite
1168 restrictions for a given session ID context by starting a session
1169 in a different context.
1172 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1173 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1174 authentication-only ciphersuites.
1177 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1178 not complete and could lead to a possible single byte overflow
1179 (CVE-2007-5135) [Ben Laurie]
1181 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1183 *) Since AES128 and AES256 (and similarly Camellia128 and
1184 Camellia256) share a single mask bit in the logic of
1185 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1186 kludge to work properly if AES128 is available and AES256 isn't
1187 (or if Camellia128 is available and Camellia256 isn't).
1190 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1191 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1192 When a point or a seed is encoded in a BIT STRING, we need to
1193 prevent the removal of trailing zero bits to get the proper DER
1194 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1195 of a NamedBitList, for which trailing 0 bits need to be removed.)
1198 *) Have SSL/TLS server implementation tolerate "mismatched" record
1199 protocol version while receiving ClientHello even if the
1200 ClientHello is fragmented. (The server can't insist on the
1201 particular protocol version it has chosen before the ServerHello
1202 message has informed the client about his choice.)
1205 *) Add RFC 3779 support.
1206 [Rob Austein for ARIN, Ben Laurie]
1208 *) Load error codes if they are not already present instead of using a
1209 static variable. This allows them to be cleanly unloaded and reloaded.
1210 Improve header file function name parsing.
1213 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1214 or CAPABILITY handshake as required by RFCs.
1217 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1219 *) Introduce limits to prevent malicious keys being able to
1220 cause a denial of service. (CVE-2006-2940)
1221 [Steve Henson, Bodo Moeller]
1223 *) Fix ASN.1 parsing of certain invalid structures that can result
1224 in a denial of service. (CVE-2006-2937) [Steve Henson]
1226 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1227 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1229 *) Fix SSL client code which could crash if connecting to a
1230 malicious SSLv2 server. (CVE-2006-4343)
1231 [Tavis Ormandy and Will Drewry, Google Security Team]
1233 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1234 match only those. Before that, "AES256-SHA" would be interpreted
1235 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1236 the same strength classification in 0.9.7h) as we currently only
1237 have a single AES bit in the ciphersuite description bitmap.
1238 That change, however, also applied to ciphersuite strings such as
1239 "RC4-MD5" that intentionally matched multiple ciphersuites --
1240 namely, SSL 2.0 ciphersuites in addition to the more common ones
1241 from SSL 3.0/TLS 1.0.
1243 So we change the selection algorithm again: Naming an explicit
1244 ciphersuite selects this one ciphersuite, and any other similar
1245 ciphersuite (same bitmap) from *other* protocol versions.
1246 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1247 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1249 Since SSL 2.0 does not have any ciphersuites for which the
1250 128/256 bit distinction would be relevant, this works for now.
1251 The proper fix will be to use different bits for AES128 and
1252 AES256, which would have avoided the problems from the beginning;
1253 however, bits are scarce, so we can only do this in a new release
1254 (not just a patchlevel) when we can change the SSL_CIPHER
1255 definition to split the single 'unsigned long mask' bitmap into
1256 multiple values to extend the available space.
1260 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1262 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1263 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1265 *) Add AES IGE and biIGE modes.
1268 *) Change the Unix randomness entropy gathering to use poll() when
1269 possible instead of select(), since the latter has some
1270 undesirable limitations.
1271 [Darryl Miles via Richard Levitte and Bodo Moeller]
1273 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1274 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1275 cannot be implicitly activated as part of, e.g., the "AES" alias.
1276 However, please upgrade to OpenSSL 0.9.9[-dev] for
1277 non-experimental use of the ECC ciphersuites to get TLS extension
1278 support, which is required for curve and point format negotiation
1279 to avoid potential handshake problems.
1282 *) Disable rogue ciphersuites:
1284 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1285 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1286 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1288 The latter two were purportedly from
1289 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1292 Also deactivate the remaining ciphersuites from
1293 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1294 unofficial, and the ID has long expired.
1297 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1298 dual-core machines) and other potential thread-safety issues.
1301 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1302 versions), which is now available for royalty-free use
1303 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1304 Also, add Camellia TLS ciphersuites from RFC 4132.
1306 To minimize changes between patchlevels in the OpenSSL 0.9.8
1307 series, Camellia remains excluded from compilation unless OpenSSL
1308 is configured with 'enable-camellia'.
1311 *) Disable the padding bug check when compression is in use. The padding
1312 bug check assumes the first packet is of even length, this is not
1313 necessarily true if compresssion is enabled and can result in false
1314 positives causing handshake failure. The actual bug test is ancient
1315 code so it is hoped that implementations will either have fixed it by
1316 now or any which still have the bug do not support compression.
1319 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1321 *) When applying a cipher rule check to see if string match is an explicit
1322 cipher suite and only match that one cipher suite if it is.
1325 *) Link in manifests for VC++ if needed.
1326 [Austin Ziegler <halostatue@gmail.com>]
1328 *) Update support for ECC-based TLS ciphersuites according to
1329 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1330 TLS extensions, which are supported starting with the 0.9.9
1331 branch, not in the OpenSSL 0.9.8 branch).
1334 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1335 opaque EVP_CIPHER_CTX handling.
1338 *) Fixes and enhancements to zlib compression code. We now only use
1339 "zlib1.dll" and use the default __cdecl calling convention on Win32
1340 to conform with the standards mentioned here:
1341 http://www.zlib.net/DLL_FAQ.txt
1342 Static zlib linking now works on Windows and the new --with-zlib-include
1343 --with-zlib-lib options to Configure can be used to supply the location
1344 of the headers and library. Gracefully handle case where zlib library
1348 *) Several fixes and enhancements to the OID generation code. The old code
1349 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1350 handle numbers larger than ULONG_MAX, truncated printing and had a
1351 non standard OBJ_obj2txt() behaviour.
1354 *) Add support for building of engines under engine/ as shared libraries
1355 under VC++ build system.
1358 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1359 Hopefully, we will not see any false combination of paths any more.
1362 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1364 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1365 (part of SSL_OP_ALL). This option used to disable the
1366 countermeasure against man-in-the-middle protocol-version
1367 rollback in the SSL 2.0 server implementation, which is a bad
1368 idea. (CVE-2005-2969)
1370 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1371 for Information Security, National Institute of Advanced Industrial
1372 Science and Technology [AIST], Japan)]
1374 *) Add two function to clear and return the verify parameter flags.
1377 *) Keep cipherlists sorted in the source instead of sorting them at
1378 runtime, thus removing the need for a lock.
1381 *) Avoid some small subgroup attacks in Diffie-Hellman.
1382 [Nick Mathewson and Ben Laurie]
1384 *) Add functions for well-known primes.
1387 *) Extended Windows CE support.
1388 [Satoshi Nakamura and Andy Polyakov]
1390 *) Initialize SSL_METHOD structures at compile time instead of during
1391 runtime, thus removing the need for a lock.
1394 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1395 attempting to decrypt each encrypted key in turn. Add support to
1399 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1401 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1404 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1407 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1408 key into the same file any more.
1411 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1414 *) Add -utf8 command line and config file option to 'ca'.
1415 [Stefan <stf@udoma.org]
1417 *) Removed the macro des_crypt(), as it seems to conflict with some
1418 libraries. Use DES_crypt().
1421 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1422 involves renaming the source and generated shared-libs for
1423 both. The engines will accept the corrected or legacy ids
1424 ('ncipher' and '4758_cca' respectively) when binding. NB,
1425 this only applies when building 'shared'.
1426 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1428 *) Add attribute functions to EVP_PKEY structure. Modify
1429 PKCS12_create() to recognize a CSP name attribute and
1430 use it. Make -CSP option work again in pkcs12 utility.
1433 *) Add new functionality to the bn blinding code:
1434 - automatic re-creation of the BN_BLINDING parameters after
1435 a fixed number of uses (currently 32)
1436 - add new function for parameter creation
1437 - introduce flags to control the update behaviour of the
1438 BN_BLINDING parameters
1439 - hide BN_BLINDING structure
1440 Add a second BN_BLINDING slot to the RSA structure to improve
1441 performance when a single RSA object is shared among several
1445 *) Add support for DTLS.
1446 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1448 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1449 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1452 *) Remove buggy and incompletet DH cert support from
1453 ssl/ssl_rsa.c and ssl/s3_both.c
1456 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1457 the apps/openssl applications.
1460 *) Compile clean with "-Wall -Wmissing-prototypes
1461 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1462 DEBUG_SAFESTACK must also be set.
1465 *) Change ./Configure so that certain algorithms can be disabled by default.
1466 The new counterpiece to "no-xxx" is "enable-xxx".
1468 The patented RC5 and MDC2 algorithms will now be disabled unless
1469 "enable-rc5" and "enable-mdc2", respectively, are specified.
1471 (IDEA remains enabled despite being patented. This is because IDEA
1472 is frequently required for interoperability, and there is no license
1473 fee for non-commercial use. As before, "no-idea" can be used to
1474 avoid this algorithm.)
1478 *) Add processing of proxy certificates (see RFC 3820). This work was
1479 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1480 EGEE (Enabling Grids for E-science in Europe).
1483 *) RC4 performance overhaul on modern architectures/implementations, such
1484 as Intel P4, IA-64 and AMD64.
1487 *) New utility extract-section.pl. This can be used specify an alternative
1488 section number in a pod file instead of having to treat each file as
1489 a separate case in Makefile. This can be done by adding two lines to the
1492 =for comment openssl_section:XXX
1494 The blank line is mandatory.
1498 *) New arguments -certform, -keyform and -pass for s_client and s_server
1499 to allow alternative format key and certificate files and passphrase
1503 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1504 update associated structures and add various utility functions.
1506 Add new policy related verify parameters, include policy checking in
1507 standard verify code. Enhance 'smime' application with extra parameters
1508 to support policy checking and print out.
1511 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1512 Nehemiah processors. These extensions support AES encryption in hardware
1513 as well as RNG (though RNG support is currently disabled).
1514 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1516 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1519 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1520 [Andy Polyakov and a number of other people]
1522 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1523 implementation contributed by IBM.
1524 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1526 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1527 exponent rather than 'unsigned long'. There is a corresponding change to
1528 the new 'rsa_keygen' element of the RSA_METHOD structure.
1529 [Jelte Jansen, Geoff Thorpe]
1531 *) Functionality for creating the initial serial number file is now
1532 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1534 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1535 number file to 1, which is bound to cause problems. To avoid
1536 the problems while respecting compatibility between different 0.9.7
1537 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1538 CA.pl for serial number initialization. With the new release 0.9.8,
1539 we can fix the problem directly in the 'ca' utility.)
1542 *) Reduced header interdepencies by declaring more opaque objects in
1543 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1544 give fewer recursive includes, which could break lazy source code - so
1545 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1546 developers should define this symbol when building and using openssl to
1547 ensure they track the recommended behaviour, interfaces, [etc], but
1548 backwards-compatible behaviour prevails when this isn't defined.
1551 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1554 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1555 This will generate a random key of the appropriate length based on the
1556 cipher context. The EVP_CIPHER can provide its own random key generation
1557 routine to support keys of a specific form. This is used in the des and
1558 3des routines to generate a key of the correct parity. Update S/MIME
1559 code to use new functions and hence generate correct parity DES keys.
1560 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1561 valid (weak or incorrect parity).
1564 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1565 as looking them up. This is useful when the verified structure may contain
1566 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1567 present unless the new PKCS7_NO_CRL flag is asserted.
1570 *) Extend ASN1 oid configuration module. It now additionally accepts the
1573 shortName = some long name, 1.2.3.4
1576 *) Reimplemented the BN_CTX implementation. There is now no more static
1577 limitation on the number of variables it can handle nor the depth of the
1578 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1579 information can now expand as required, and rather than having a single
1580 static array of bignums, BN_CTX now uses a linked-list of such arrays
1581 allowing it to expand on demand whilst maintaining the usefulness of
1582 BN_CTX's "bundling".
1585 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1586 to allow all RSA operations to function using a single BN_CTX.
1589 *) Preliminary support for certificate policy evaluation and checking. This
1590 is initially intended to pass the tests outlined in "Conformance Testing
1591 of Relying Party Client Certificate Path Processing Logic" v1.07.
1594 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1595 remained unused and not that useful. A variety of other little bignum
1596 tweaks and fixes have also been made continuing on from the audit (see
1600 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1601 associated ASN1, EVP and SSL functions and old ASN1 macros.
1604 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1605 and this should never fail. So the return value from the use of
1606 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1607 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1610 *) BN_CTX_get() should return zero-valued bignums, providing the same
1611 initialised value as BN_new().
1612 [Geoff Thorpe, suggested by Ulf Möller]
1614 *) Support for inhibitAnyPolicy certificate extension.
1617 *) An audit of the BIGNUM code is underway, for which debugging code is
1618 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1619 is considered valid when processing BIGNUMs, and causes execution to
1620 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1621 further steps are taken to deliberately pollute unused data in BIGNUM
1622 structures to try and expose faulty code further on. For now, openssl will
1623 (in its default mode of operation) continue to tolerate the inconsistent
1624 forms that it has tolerated in the past, but authors and packagers should
1625 consider trying openssl and their own applications when compiled with
1626 these debugging symbols defined. It will help highlight potential bugs in
1627 their own code, and will improve the test coverage for OpenSSL itself. At
1628 some point, these tighter rules will become openssl's default to improve
1629 maintainability, though the assert()s and other overheads will remain only
1630 in debugging configurations. See bn.h for more details.
1631 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1633 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1634 that can only be obtained through BN_CTX_new() (which implicitly
1635 initialises it). The presence of this function only made it possible
1636 to overwrite an existing structure (and cause memory leaks).
1639 *) Because of the callback-based approach for implementing LHASH as a
1640 template type, lh_insert() adds opaque objects to hash-tables and
1641 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1642 to clean up those corresponding objects before destroying the hash table
1643 (and losing the object pointers). So some over-zealous constifications in
1644 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1645 objects as "const" and the lh_doall[_arg] callback wrappers are not
1646 prototyped to have "const" restrictions on the object pointers they are
1647 given (and so aren't required to cast them away any more).
1650 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1651 (speed) prefers to use its own implementation. The two implementations
1652 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1653 its object type properly exposed (MS_TM) instead of casting to/from "char
1654 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1655 aren't necessarily the greatest nomenclatures - but this is what was used
1656 internally to the implementation so I've used that for now.
1659 *) Ensure that deprecated functions do not get compiled when
1660 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1661 the self-tests were still using deprecated key-generation functions so
1662 these have been updated also.
1665 *) Reorganise PKCS#7 code to separate the digest location functionality
1666 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1667 New function PKCS7_set_digest() to set the digest type for PKCS#7
1668 digestedData type. Add additional code to correctly generate the
1669 digestedData type and add support for this type in PKCS7 initialization
1673 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1674 structure of type "other".
1677 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1678 sure the loop does correctly stop and breaking ("division by zero")
1679 modulus operations are not performed. The (pre-generated) prime
1680 table crypto/bn/bn_prime.h was already correct, but it could not be
1681 re-generated on some platforms because of the "division by zero"
1682 situation in the script.
1683 [Ralf S. Engelschall]
1685 *) Update support for ECC-based TLS ciphersuites according to
1686 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1687 SHA-1 now is only used for "small" curves (where the
1688 representation of a field element takes up to 24 bytes); for
1689 larger curves, the field element resulting from ECDH is directly
1690 used as premaster secret.
1691 [Douglas Stebila (Sun Microsystems Laboratories)]
1693 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1694 curve secp160r1 to the tests.
1695 [Douglas Stebila (Sun Microsystems Laboratories)]
1697 *) Add the possibility to load symbols globally with DSO.
1698 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1700 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1701 control of the error stack.
1704 *) Add support for STORE in ENGINE.
1707 *) Add the STORE type. The intention is to provide a common interface
1708 to certificate and key stores, be they simple file-based stores, or
1709 HSM-type store, or LDAP stores, or...
1710 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1713 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1714 pass a list of arguments to any function as well as provide a way
1715 for a function to pass data back to the caller.
1718 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1719 works like BUF_strdup() but can be used to duplicate a portion of
1720 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1724 *) Add the function sk_find_ex() which works like sk_find(), but will
1725 return an index to an element even if an exact match couldn't be
1726 found. The index is guaranteed to point at the element where the
1727 searched-for key would be inserted to preserve sorting order.
1730 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1731 takes an extra flags argument for optional functionality. Currently,
1732 the following flags are defined:
1734 OBJ_BSEARCH_VALUE_ON_NOMATCH
1735 This one gets OBJ_bsearch_ex() to return a pointer to the first
1736 element where the comparing function returns a negative or zero
1739 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1740 This one gets OBJ_bsearch_ex() to return a pointer to the first
1741 element where the comparing function returns zero. This is useful
1742 if there are more than one element where the comparing function
1746 *) Make it possible to create self-signed certificates with 'openssl ca'
1747 in such a way that the self-signed certificate becomes part of the
1748 CA database and uses the same mechanisms for serial number generation
1749 as all other certificate signing. The new flag '-selfsign' enables
1750 this functionality. Adapt CA.sh and CA.pl.in.
1753 *) Add functionality to check the public key of a certificate request
1754 against a given private. This is useful to check that a certificate
1755 request can be signed by that key (self-signing).
1758 *) Make it possible to have multiple active certificates with the same
1759 subject in the CA index file. This is done only if the keyword
1760 'unique_subject' is set to 'no' in the main CA section (default
1761 if 'CA_default') of the configuration file. The value is saved
1762 with the database itself in a separate index attribute file,
1763 named like the index file with '.attr' appended to the name.
1766 *) Generate muti valued AVAs using '+' notation in config files for
1770 *) Support for nameConstraints certificate extension.
1773 *) Support for policyConstraints certificate extension.
1776 *) Support for policyMappings certificate extension.
1779 *) Make sure the default DSA_METHOD implementation only uses its
1780 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1781 and change its own handlers to be NULL so as to remove unnecessary
1782 indirection. This lets alternative implementations fallback to the
1783 default implementation more easily.
1786 *) Support for directoryName in GeneralName related extensions
1790 *) Make it possible to link applications using Makefile.shared.
1791 Make that possible even when linking against static libraries!
1794 *) Support for single pass processing for S/MIME signing. This now
1795 means that S/MIME signing can be done from a pipe, in addition
1796 cleartext signing (multipart/signed type) is effectively streaming
1797 and the signed data does not need to be all held in memory.
1799 This is done with a new flag PKCS7_STREAM. When this flag is set
1800 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1801 is done after the data is output (and digests calculated) in
1802 SMIME_write_PKCS7().
1805 *) Add full support for -rpath/-R, both in shared libraries and
1806 applications, at least on the platforms where it's known how
1810 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1811 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1812 will now compute a table of multiples of the generator that
1813 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1814 faster (notably in the case of a single point multiplication,
1815 scalar * generator).
1816 [Nils Larsch, Bodo Moeller]
1818 *) IPv6 support for certificate extensions. The various extensions
1819 which use the IP:a.b.c.d can now take IPv6 addresses using the
1820 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1824 *) Added an ENGINE that implements RSA by performing private key
1825 exponentiations with the GMP library. The conversions to and from
1826 GMP's mpz_t format aren't optimised nor are any montgomery forms
1827 cached, and on x86 it appears OpenSSL's own performance has caught up.
1828 However there are likely to be other architectures where GMP could
1829 provide a boost. This ENGINE is not built in by default, but it can be
1830 specified at Configure time and should be accompanied by the necessary
1831 linker additions, eg;
1832 ./config -DOPENSSL_USE_GMP -lgmp
1835 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1836 testing availability of engines with "-t" - the old behaviour is
1837 produced by increasing the feature's verbosity with "-tt".
1840 *) ECDSA routines: under certain error conditions uninitialized BN objects
1841 could be freed. Solution: make sure initialization is performed early
1842 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1846 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1847 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1848 software implementations. For DSA and DH, parameter generation can
1849 also be overriden by providing the appropriate method callbacks.
1852 *) Change the "progress" mechanism used in key-generation and
1853 primality testing to functions that take a new BN_GENCB pointer in
1854 place of callback/argument pairs. The new API functions have "_ex"
1855 postfixes and the older functions are reimplemented as wrappers for
1856 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1857 declarations of the old functions to help (graceful) attempts to
1858 migrate to the new functions. Also, the new key-generation API
1859 functions operate on a caller-supplied key-structure and return
1860 success/failure rather than returning a key or NULL - this is to
1861 help make "keygen" another member function of RSA_METHOD etc.
1863 Example for using the new callback interface:
1865 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1869 BN_GENCB_set(&my_cb, my_callback, my_arg);
1871 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1872 /* For the meaning of a, b in calls to my_callback(), see the
1873 * documentation of the function that calls the callback.
1874 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1875 * my_callback should return 1 if it wants BN_is_prime_ex()
1876 * to continue, or 0 to stop.
1881 *) Change the ZLIB compression method to be stateful, and make it
1882 available to TLS with the number defined in
1883 draft-ietf-tls-compression-04.txt.
1886 *) Add the ASN.1 structures and functions for CertificatePair, which
1887 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1889 CertificatePair ::= SEQUENCE {
1890 forward [0] Certificate OPTIONAL,
1891 reverse [1] Certificate OPTIONAL,
1892 -- at least one of the pair shall be present -- }
1894 Also implement the PEM functions to read and write certificate
1895 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1897 This needed to be defined, mostly for the sake of the LDAP
1898 attribute crossCertificatePair, but may prove useful elsewhere as
1902 *) Make it possible to inhibit symlinking of shared libraries in
1903 Makefile.shared, for Cygwin's sake.
1906 *) Extend the BIGNUM API by creating a function
1907 void BN_set_negative(BIGNUM *a, int neg);
1908 and a macro that behave like
1909 int BN_is_negative(const BIGNUM *a);
1911 to avoid the need to access 'a->neg' directly in applications.
1914 *) Implement fast modular reduction for pseudo-Mersenne primes
1915 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1916 EC_GROUP_new_curve_GFp() will now automatically use this
1918 [Nils Larsch <nla@trustcenter.de>]
1920 *) Add new lock type (CRYPTO_LOCK_BN).
1923 *) Change the ENGINE framework to automatically load engines
1924 dynamically from specific directories unless they could be
1925 found to already be built in or loaded. Move all the
1926 current engines except for the cryptodev one to a new
1928 The engines in engines/ are built as shared libraries if
1929 the "shared" options was given to ./Configure or ./config.
1930 Otherwise, they are inserted in libcrypto.a.
1931 /usr/local/ssl/engines is the default directory for dynamic
1932 engines, but that can be overriden at configure time through
1933 the usual use of --prefix and/or --openssldir, and at run
1934 time with the environment variable OPENSSL_ENGINES.
1935 [Geoff Thorpe and Richard Levitte]
1937 *) Add Makefile.shared, a helper makefile to build shared
1938 libraries. Addapt Makefile.org.
1941 *) Add version info to Win32 DLLs.
1942 [Peter 'Luna' Runestig" <peter@runestig.com>]
1944 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1945 can be added using this API to created arbitrary PKCS#12
1946 files while avoiding the low level API.
1948 New options to PKCS12_create(), key or cert can be NULL and
1949 will then be omitted from the output file. The encryption
1950 algorithm NIDs can be set to -1 for no encryption, the mac
1951 iteration count can be set to 0 to omit the mac.
1953 Enhance pkcs12 utility by making the -nokeys and -nocerts
1954 options work when creating a PKCS#12 file. New option -nomac
1955 to omit the mac, NONE can be set for an encryption algorithm.
1956 New code is modified to use the enhanced PKCS12_create()
1957 instead of the low level API.
1960 *) Extend ASN1 encoder to support indefinite length constructed
1961 encoding. This can output sequences tags and octet strings in
1962 this form. Modify pk7_asn1.c to support indefinite length
1963 encoding. This is experimental and needs additional code to
1964 be useful, such as an ASN1 bio and some enhanced streaming
1967 Extend template encode functionality so that tagging is passed
1968 down to the template encoder.
1971 *) Let 'openssl req' fail if an argument to '-newkey' is not
1972 recognized instead of using RSA as a default.
1975 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1976 As these are not official, they are not included in "ALL";
1977 the "ECCdraft" ciphersuite group alias can be used to select them.
1978 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1980 *) Add ECDH engine support.
1981 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1983 *) Add ECDH in new directory crypto/ecdh/.
1984 [Douglas Stebila (Sun Microsystems Laboratories)]
1986 *) Let BN_rand_range() abort with an error after 100 iterations
1987 without success (which indicates a broken PRNG).
1990 *) Change BN_mod_sqrt() so that it verifies that the input value
1991 is really the square of the return value. (Previously,
1992 BN_mod_sqrt would show GIGO behaviour.)
1995 *) Add named elliptic curves over binary fields from X9.62, SECG,
1996 and WAP/WTLS; add OIDs that were still missing.
1998 [Sheueling Chang Shantz and Douglas Stebila
1999 (Sun Microsystems Laboratories)]
2001 *) Extend the EC library for elliptic curves over binary fields
2002 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2005 EC_GF2m_simple_method
2009 EC_GROUP_new_curve_GF2m
2010 EC_GROUP_set_curve_GF2m
2011 EC_GROUP_get_curve_GF2m
2012 EC_POINT_set_affine_coordinates_GF2m
2013 EC_POINT_get_affine_coordinates_GF2m
2014 EC_POINT_set_compressed_coordinates_GF2m
2016 Point compression for binary fields is disabled by default for
2017 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2020 As binary polynomials are represented as BIGNUMs, various members
2021 of the EC_GROUP and EC_POINT data structures can be shared
2022 between the implementations for prime fields and binary fields;
2023 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2024 are essentially identical to their ..._GFp counterparts.
2025 (For simplicity, the '..._GFp' prefix has been dropped from
2026 various internal method names.)
2028 An internal 'field_div' method (similar to 'field_mul' and
2029 'field_sqr') has been added; this is used only for binary fields.
2031 [Sheueling Chang Shantz and Douglas Stebila
2032 (Sun Microsystems Laboratories)]
2034 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2035 through methods ('mul', 'precompute_mult').
2037 The generic implementations (now internally called 'ec_wNAF_mul'
2038 and 'ec_wNAF_precomputed_mult') remain the default if these
2039 methods are undefined.
2041 [Sheueling Chang Shantz and Douglas Stebila
2042 (Sun Microsystems Laboratories)]
2044 *) New function EC_GROUP_get_degree, which is defined through
2045 EC_METHOD. For curves over prime fields, this returns the bit
2046 length of the modulus.
2048 [Sheueling Chang Shantz and Douglas Stebila
2049 (Sun Microsystems Laboratories)]
2051 *) New functions EC_GROUP_dup, EC_POINT_dup.
2052 (These simply call ..._new and ..._copy).
2054 [Sheueling Chang Shantz and Douglas Stebila
2055 (Sun Microsystems Laboratories)]
2057 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2058 Polynomials are represented as BIGNUMs (where the sign bit is not
2059 used) in the following functions [macros]:
2062 BN_GF2m_sub [= BN_GF2m_add]
2063 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2064 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2065 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2067 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2068 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2069 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2070 BN_GF2m_cmp [= BN_ucmp]
2072 (Note that only the 'mod' functions are actually for fields GF(2^m).
2073 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2075 For some functions, an the irreducible polynomial defining a
2076 field can be given as an 'unsigned int[]' with strictly
2077 decreasing elements giving the indices of those bits that are set;
2078 i.e., p[] represents the polynomial
2079 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2081 p[0] > p[1] > ... > p[k] = 0.
2082 This applies to the following functions:
2087 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2088 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2090 BN_GF2m_mod_sqrt_arr
2091 BN_GF2m_mod_solve_quad_arr
2095 Conversion can be performed by the following functions:
2100 bntest.c has additional tests for binary polynomial arithmetic.
2102 Two implementations for BN_GF2m_mod_div() are available.
2103 The default algorithm simply uses BN_GF2m_mod_inv() and
2104 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2105 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2106 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2108 [Sheueling Chang Shantz and Douglas Stebila
2109 (Sun Microsystems Laboratories)]
2111 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2112 functionality is disabled at compile-time.
2113 [Douglas Stebila <douglas.stebila@sun.com>]
2115 *) Change default behaviour of 'openssl asn1parse' so that more
2116 information is visible when viewing, e.g., a certificate:
2118 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2119 mode the content of non-printable OCTET STRINGs is output in a
2120 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2121 avoid the appearance of a printable string.
2122 [Nils Larsch <nla@trustcenter.de>]
2124 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2126 EC_GROUP_set_asn1_flag()
2127 EC_GROUP_get_asn1_flag()
2128 EC_GROUP_set_point_conversion_form()
2129 EC_GROUP_get_point_conversion_form()
2130 These control ASN1 encoding details:
2131 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2132 has been set to OPENSSL_EC_NAMED_CURVE.
2133 - Points are encoded in uncompressed form by default; options for
2134 asn1_for are as for point2oct, namely
2135 POINT_CONVERSION_COMPRESSED
2136 POINT_CONVERSION_UNCOMPRESSED
2137 POINT_CONVERSION_HYBRID
2139 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2142 EC_GROUP_get0_seed()
2143 EC_GROUP_get_seed_len()
2144 This is used only for ASN1 purposes (so far).
2145 [Nils Larsch <nla@trustcenter.de>]
2147 *) Add 'field_type' member to EC_METHOD, which holds the NID
2148 of the appropriate field type OID. The new function
2149 EC_METHOD_get_field_type() returns this value.
2150 [Nils Larsch <nla@trustcenter.de>]
2155 EC_POINT_point2hex()
2156 EC_POINT_hex2point()
2157 providing useful interfaces to EC_POINT_point2oct() and
2158 EC_POINT_oct2point().
2159 [Nils Larsch <nla@trustcenter.de>]
2161 *) Change internals of the EC library so that the functions
2162 EC_GROUP_set_generator()
2163 EC_GROUP_get_generator()
2164 EC_GROUP_get_order()
2165 EC_GROUP_get_cofactor()
2166 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2167 to methods, which would lead to unnecessary code duplication when
2168 adding different types of curves.
2169 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2171 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2172 arithmetic, and such that modified wNAFs are generated
2173 (which avoid length expansion in many cases).
2176 *) Add a function EC_GROUP_check_discriminant() (defined via
2177 EC_METHOD) that verifies that the curve discriminant is non-zero.
2179 Add a function EC_GROUP_check() that makes some sanity tests
2180 on a EC_GROUP, its generator and order. This includes
2181 EC_GROUP_check_discriminant().
2182 [Nils Larsch <nla@trustcenter.de>]
2184 *) Add ECDSA in new directory crypto/ecdsa/.
2186 Add applications 'openssl ecparam' and 'openssl ecdsa'
2187 (these are based on 'openssl dsaparam' and 'openssl dsa').
2189 ECDSA support is also included in various other files across the
2190 library. Most notably,
2191 - 'openssl req' now has a '-newkey ecdsa:file' option;
2192 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2193 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2194 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2195 them suitable for ECDSA where domain parameters must be
2196 extracted before the specific public key;
2197 - ECDSA engine support has been added.
2198 [Nils Larsch <nla@trustcenter.de>]
2200 *) Include some named elliptic curves, and add OIDs from X9.62,
2201 SECG, and WAP/WTLS. Each curve can be obtained from the new
2203 EC_GROUP_new_by_curve_name(),
2204 and the list of available named curves can be obtained with
2205 EC_get_builtin_curves().
2206 Also add a 'curve_name' member to EC_GROUP objects, which can be
2208 EC_GROUP_set_curve_name()
2209 EC_GROUP_get_curve_name()
2210 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2212 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2213 was actually never needed) and in BN_mul(). The removal in BN_mul()
2214 required a small change in bn_mul_part_recursive() and the addition
2215 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2216 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2217 bn_sub_words() and bn_add_words() except they take arrays with
2221 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
2223 *) In the SSL/TLS server implementation, be strict about session ID
2224 context matching (which matters if an application uses a single
2225 external cache for different purposes). Previously,
2226 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2227 set. This did ensure strict client verification, but meant that,
2228 with applications using a single external cache for quite
2229 different requirements, clients could circumvent ciphersuite
2230 restrictions for a given session ID context by starting a session
2231 in a different context.
2234 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2236 *) Cleanse PEM buffers before freeing them since they may contain
2238 [Benjamin Bennett <ben@psc.edu>]
2240 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2241 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2242 authentication-only ciphersuites.
2245 *) Since AES128 and AES256 share a single mask bit in the logic of
2246 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2247 kludge to work properly if AES128 is available and AES256 isn't.
2250 *) Expand security boundary to match 1.1.1 module.
2253 *) Remove redundant features: hash file source, editing of test vectors
2254 modify fipsld to use external fips_premain.c signature.
2257 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2258 run algorithm test programs.
2261 *) Make algorithm test programs more tolerant of whitespace.
2264 *) Have SSL/TLS server implementation tolerate "mismatched" record
2265 protocol version while receiving ClientHello even if the
2266 ClientHello is fragmented. (The server can't insist on the
2267 particular protocol version it has chosen before the ServerHello
2268 message has informed the client about his choice.)
2271 *) Load error codes if they are not already present instead of using a
2272 static variable. This allows them to be cleanly unloaded and reloaded.
2275 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2277 *) Introduce limits to prevent malicious keys being able to
2278 cause a denial of service. (CVE-2006-2940)
2279 [Steve Henson, Bodo Moeller]
2281 *) Fix ASN.1 parsing of certain invalid structures that can result
2282 in a denial of service. (CVE-2006-2937) [Steve Henson]
2284 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2285 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2287 *) Fix SSL client code which could crash if connecting to a
2288 malicious SSLv2 server. (CVE-2006-4343)
2289 [Tavis Ormandy and Will Drewry, Google Security Team]
2291 *) Change ciphersuite string processing so that an explicit
2292 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2293 will no longer include "AES128-SHA"), and any other similar
2294 ciphersuite (same bitmap) from *other* protocol versions (so that
2295 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2296 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2297 changes from 0.9.8b and 0.9.8d.
2300 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2302 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2303 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2305 *) Change the Unix randomness entropy gathering to use poll() when
2306 possible instead of select(), since the latter has some
2307 undesirable limitations.
2308 [Darryl Miles via Richard Levitte and Bodo Moeller]
2310 *) Disable rogue ciphersuites:
2312 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2313 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2314 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2316 The latter two were purportedly from
2317 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2320 Also deactive the remaining ciphersuites from
2321 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2322 unofficial, and the ID has long expired.
2325 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2326 dual-core machines) and other potential thread-safety issues.
2329 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2331 *) Adapt fipsld and the build system to link against the validated FIPS
2332 module in FIPS mode.
2335 *) Fixes for VC++ 2005 build under Windows.
2338 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2339 from a Windows bash shell such as MSYS. It is autodetected from the
2340 "config" script when run from a VC++ environment. Modify standard VC++
2341 build to use fipscanister.o from the GNU make build.
2344 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2346 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2347 The value now differs depending on if you build for FIPS or not.
2348 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2349 safely run with a non-FIPSed libcrypto, as it may crash because of
2350 the difference induced by this change.
2353 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2355 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2356 (part of SSL_OP_ALL). This option used to disable the
2357 countermeasure against man-in-the-middle protocol-version
2358 rollback in the SSL 2.0 server implementation, which is a bad
2359 idea. (CVE-2005-2969)
2361 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2362 for Information Security, National Institute of Advanced Industrial
2363 Science and Technology [AIST], Japan)]
2365 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2366 mainly for FIPS compliance and not fully integrated at this stage.
2369 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2370 the exponentiation using a fixed-length exponent. (Otherwise,
2371 the information leaked through timing could expose the secret key
2372 after many signatures; cf. Bleichenbacher's attack on DSA with
2376 *) Make a new fixed-window mod_exp implementation the default for
2377 RSA, DSA, and DH private-key operations so that the sequence of
2378 squares and multiplies and the memory access pattern are
2379 independent of the particular secret key. This will mitigate
2380 cache-timing and potential related attacks.
2382 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2383 and this is automatically used by BN_mod_exp_mont() if the new flag
2384 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2385 will use this BN flag for private exponents unless the flag
2386 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2387 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2389 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2391 *) Change the client implementation for SSLv23_method() and
2392 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2393 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2394 (Previously, the SSL 2.0 backwards compatible Client Hello
2395 message format would be used even with SSL_OP_NO_SSLv2.)
2398 *) Add support for smime-type MIME parameter in S/MIME messages which some
2402 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2403 a threadsafe manner. Modify rsa code to use new function and add calls
2404 to dsa and dh code (which had race conditions before).
2407 *) Include the fixed error library code in the C error file definitions
2408 instead of fixing them up at runtime. This keeps the error code
2409 structures constant.
2412 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2414 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2417 *) Fixes for newer kerberos headers. NB: the casts are needed because
2418 the 'length' field is signed on one version and unsigned on another
2419 with no (?) obvious way to tell the difference, without these VC++
2420 complains. Also the "definition" of FAR (blank) is no longer included
2421 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2422 some needed definitions.
2425 *) Undo Cygwin change.
2428 *) Added support for proxy certificates according to RFC 3820.
2429 Because they may be a security thread to unaware applications,
2430 they must be explicitely allowed in run-time. See
2431 docs/HOWTO/proxy_certificates.txt for further information.
2434 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2436 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2437 server and client random values. Previously
2438 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2439 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2441 This change has negligible security impact because:
2443 1. Server and client random values still have 24 bytes of pseudo random
2446 2. Server and client random values are sent in the clear in the initial
2449 3. The master secret is derived using the premaster secret (48 bytes in
2450 size for static RSA ciphersuites) as well as client server and random
2453 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2456 [Stephen Henson, reported by UK NISCC]
2458 *) Use Windows randomness collection on Cygwin.
2461 *) Fix hang in EGD/PRNGD query when communication socket is closed
2462 prematurely by EGD/PRNGD.
2463 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2465 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2468 *) Back-port of selected performance improvements from development
2469 branch, as well as improved support for PowerPC platforms.
2472 *) Add lots of checks for memory allocation failure, error codes to indicate
2473 failure and freeing up memory if a failure occurs.
2474 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2476 *) Add new -passin argument to dgst.
2479 *) Perform some character comparisons of different types in X509_NAME_cmp:
2480 this is needed for some certificates that reencode DNs into UTF8Strings
2481 (in violation of RFC3280) and can't or wont issue name rollover
2485 *) Make an explicit check during certificate validation to see that
2486 the CA setting in each certificate on the chain is correct. As a
2487 side effect always do the following basic checks on extensions,
2488 not just when there's an associated purpose to the check:
2490 - if there is an unhandled critical extension (unless the user
2491 has chosen to ignore this fault)
2492 - if the path length has been exceeded (if one is set at all)
2493 - that certain extensions fit the associated purpose (if one has
2497 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2499 *) Avoid a race condition when CRLs are checked in a multi threaded
2500 environment. This would happen due to the reordering of the revoked
2501 entries during signature checking and serial number lookup. Now the
2502 encoding is cached and the serial number sort performed under a lock.
2503 Add new STACK function sk_is_sorted().
2506 *) Add Delta CRL to the extension code.
2509 *) Various fixes to s3_pkt.c so alerts are sent properly.
2510 [David Holmes <d.holmes@f5.com>]
2512 *) Reduce the chances of duplicate issuer name and serial numbers (in
2513 violation of RFC3280) using the OpenSSL certificate creation utilities.
2514 This is done by creating a random 64 bit value for the initial serial
2515 number when a serial number file is created or when a self signed
2516 certificate is created using 'openssl req -x509'. The initial serial
2517 number file is created using 'openssl x509 -next_serial' in CA.pl
2518 rather than being initialized to 1.
2521 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2523 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2524 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2525 [Joe Orton, Steve Henson]
2527 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2529 [Joe Orton, Steve Henson]
2531 *) Make it possible to have multiple active certificates with the same
2532 subject in the CA index file. This is done only if the keyword
2533 'unique_subject' is set to 'no' in the main CA section (default
2534 if 'CA_default') of the configuration file. The value is saved
2535 with the database itself in a separate index attribute file,
2536 named like the index file with '.attr' appended to the name.
2539 *) X509 verify fixes. Disable broken certificate workarounds when
2540 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2541 keyUsage extension present. Don't accept CRLs with unhandled critical
2542 extensions: since verify currently doesn't process CRL extensions this
2543 rejects a CRL with *any* critical extensions. Add new verify error codes
2547 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2548 A clarification of RFC2560 will require the use of OCTET STRINGs and
2549 some implementations cannot handle the current raw format. Since OpenSSL
2550 copies and compares OCSP nonces as opaque blobs without any attempt at
2551 parsing them this should not create any compatibility issues.
2554 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2555 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2556 this HMAC (and other) operations are several times slower than OpenSSL
2560 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2561 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2563 *) Use the correct content when signing type "other".
2566 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2568 *) Fix various bugs revealed by running the NISCC test suite:
2570 Stop out of bounds reads in the ASN1 code when presented with
2571 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2573 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2575 If verify callback ignores invalid public key errors don't try to check
2576 certificate signature with the NULL public key.
2580 *) New -ignore_err option in ocsp application to stop the server
2581 exiting on the first error in a request.
2584 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2585 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2589 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2590 extra data after the compression methods not only for TLS 1.0
2591 but also for SSL 3.0 (as required by the specification).
2592 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2594 *) Change X509_certificate_type() to mark the key as exported/exportable
2595 when it's 512 *bits* long, not 512 bytes.
2598 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2599 blocks during encryption.
2602 *) Various fixes to base64 BIO and non blocking I/O. On write
2603 flushes were not handled properly if the BIO retried. On read
2604 data was not being buffered properly and had various logic bugs.
2605 This also affects blocking I/O when the data being decoded is a
2609 *) Various S/MIME bugfixes and compatibility changes:
2610 output correct application/pkcs7 MIME type if
2611 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2612 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2613 of files as .eml work). Correctly handle very long lines in MIME
2617 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2619 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2620 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2621 a protocol version number mismatch like a decryption error
2622 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2625 *) Turn on RSA blinding by default in the default implementation
2626 to avoid a timing attack. Applications that don't want it can call
2627 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2628 They would be ill-advised to do so in most cases.
2629 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2631 *) Change RSA blinding code so that it works when the PRNG is not
2632 seeded (in this case, the secret RSA exponent is abused as
2633 an unpredictable seed -- if it is not unpredictable, there
2634 is no point in blinding anyway). Make RSA blinding thread-safe
2635 by remembering the creator's thread ID in rsa->blinding and
2636 having all other threads use local one-time blinding factors
2637 (this requires more computation than sharing rsa->blinding, but
2638 avoids excessive locking; and if an RSA object is not shared
2639 between threads, blinding will still be very fast).
2642 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2643 ENGINE as defaults for all supported algorithms irrespective of
2644 the 'flags' parameter. 'flags' is now honoured, so applications
2645 should make sure they are passing it correctly.
2648 *) Target "mingw" now allows native Windows code to be generated in
2649 the Cygwin environment as well as with the MinGW compiler.
2652 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2654 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2655 via timing by performing a MAC computation even if incorrrect
2656 block cipher padding has been found. This is a countermeasure
2657 against active attacks where the attacker has to distinguish
2658 between bad padding and a MAC verification error. (CVE-2003-0078)
2660 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2661 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2662 Martin Vuagnoux (EPFL, Ilion)]
2664 *) Make the no-err option work as intended. The intention with no-err
2665 is not to have the whole error stack handling routines removed from
2666 libcrypto, it's only intended to remove all the function name and
2667 reason texts, thereby removing some of the footprint that may not
2668 be interesting if those errors aren't displayed anyway.
2670 NOTE: it's still possible for any application or module to have it's
2671 own set of error texts inserted. The routines are there, just not
2672 used by default when no-err is given.
2675 *) Add support for FreeBSD on IA64.
2676 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2678 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2679 Kerberos function mit_des_cbc_cksum(). Before this change,
2680 the value returned by DES_cbc_cksum() was like the one from
2681 mit_des_cbc_cksum(), except the bytes were swapped.
2682 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2684 *) Allow an application to disable the automatic SSL chain building.
2685 Before this a rather primitive chain build was always performed in
2686 ssl3_output_cert_chain(): an application had no way to send the
2687 correct chain if the automatic operation produced an incorrect result.
2689 Now the chain builder is disabled if either:
2691 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2693 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2695 The reasoning behind this is that an application would not want the
2696 auto chain building to take place if extra chain certificates are
2697 present and it might also want a means of sending no additional
2698 certificates (for example the chain has two certificates and the
2702 *) Add the possibility to build without the ENGINE framework.
2703 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2705 *) Under Win32 gmtime() can return NULL: check return value in
2706 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2709 *) DSA routines: under certain error conditions uninitialized BN objects
2710 could be freed. Solution: make sure initialization is performed early
2711 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2712 Nils Larsch <nla@trustcenter.de> via PR#459)
2715 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2716 checked on reconnect on the client side, therefore session resumption
2717 could still fail with a "ssl session id is different" error. This
2718 behaviour is masked when SSL_OP_ALL is used due to
2719 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2720 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2721 followup to PR #377.
2724 *) IA-32 assembler support enhancements: unified ELF targets, support
2725 for SCO/Caldera platforms, fix for Cygwin shared build.
2728 *) Add support for FreeBSD on sparc64. As a consequence, support for
2729 FreeBSD on non-x86 processors is separate from x86 processors on
2730 the config script, much like the NetBSD support.
2731 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2733 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2735 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2738 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2739 code (06) was taken as the first octet of the session ID and the last
2740 octet was ignored consequently. As a result SSLv2 client side session
2741 caching could not have worked due to the session ID mismatch between
2743 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2747 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2748 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2752 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2753 seems that in spite of existing for more than a year, many application
2754 author have done nothing to provide the necessary callbacks, which
2755 means that this particular engine will not work properly anywhere.
2756 This is a very unfortunate situation which forces us, in the name
2757 of usability, to give the hw_ncipher.c a static lock, which is part
2759 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2760 appear in 0.9.8 or later. We EXPECT application authors to have
2761 dealt properly with this when 0.9.8 is released (unless we actually
2762 make such changes in the libcrypto locking code that changes will
2763 have to be made anyway).
2766 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2767 octets have been read, EOF or an error occurs. Without this change
2768 some truncated ASN1 structures will not produce an error.
2771 *) Disable Heimdal support, since it hasn't been fully implemented.
2772 Still give the possibility to force the use of Heimdal, but with
2773 warnings and a request that patches get sent to openssl-dev.
2776 *) Add the VC-CE target, introduce the WINCE sysname, and add
2777 INSTALL.WCE and appropriate conditionals to make it build.
2778 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2780 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2781 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2782 edit numbers of the version.
2783 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2785 *) Introduce safe string copy and catenation functions
2786 (BUF_strlcpy() and BUF_strlcat()).
2787 [Ben Laurie (CHATS) and Richard Levitte]
2789 *) Avoid using fixed-size buffers for one-line DNs.
2790 [Ben Laurie (CHATS)]
2792 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2793 resizing buffers containing secrets, and use where appropriate.
2794 [Ben Laurie (CHATS)]
2796 *) Avoid using fixed size buffers for configuration file location.
2797 [Ben Laurie (CHATS)]
2799 *) Avoid filename truncation for various CA files.
2800 [Ben Laurie (CHATS)]
2802 *) Use sizeof in preference to magic numbers.
2803 [Ben Laurie (CHATS)]
2805 *) Avoid filename truncation in cert requests.
2806 [Ben Laurie (CHATS)]
2808 *) Add assertions to check for (supposedly impossible) buffer
2810 [Ben Laurie (CHATS)]
2812 *) Don't cache truncated DNS entries in the local cache (this could
2813 potentially lead to a spoofing attack).
2814 [Ben Laurie (CHATS)]
2816 *) Fix various buffers to be large enough for hex/decimal
2817 representations in a platform independent manner.
2818 [Ben Laurie (CHATS)]
2820 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2821 resizing buffers containing secrets, and use where appropriate.
2822 [Ben Laurie (CHATS)]
2824 *) Add BIO_indent() to avoid much slightly worrying code to do
2826 [Ben Laurie (CHATS)]
2828 *) Convert sprintf()/BIO_puts() to BIO_printf().
2829 [Ben Laurie (CHATS)]
2831 *) buffer_gets() could terminate with the buffer only half
2833 [Ben Laurie (CHATS)]
2835 *) Add assertions to prevent user-supplied crypto functions from
2836 overflowing internal buffers by having large block sizes, etc.
2837 [Ben Laurie (CHATS)]
2839 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2841 [Ben Laurie (CHATS)]
2843 *) Eliminate unused copy of key in RC4.
2844 [Ben Laurie (CHATS)]
2846 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2847 [Ben Laurie (CHATS)]
2849 *) Fix off-by-one error in EGD path.
2850 [Ben Laurie (CHATS)]
2852 *) If RANDFILE path is too long, ignore instead of truncating.
2853 [Ben Laurie (CHATS)]
2855 *) Eliminate unused and incorrectly sized X.509 structure
2857 [Ben Laurie (CHATS)]
2859 *) Eliminate unused and dangerous function knumber().
2860 [Ben Laurie (CHATS)]
2862 *) Eliminate unused and dangerous structure, KSSL_ERR.
2863 [Ben Laurie (CHATS)]
2865 *) Protect against overlong session ID context length in an encoded
2866 session object. Since these are local, this does not appear to be
2868 [Ben Laurie (CHATS)]
2870 *) Change from security patch (see 0.9.6e below) that did not affect
2871 the 0.9.6 release series:
2873 Remote buffer overflow in SSL3 protocol - an attacker could
2874 supply an oversized master key in Kerberos-enabled versions.
2876 [Ben Laurie (CHATS)]
2878 *) Change the SSL kerb5 codes to match RFC 2712.
2881 *) Make -nameopt work fully for req and add -reqopt switch.
2882 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2884 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2885 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2887 *) Make sure tests can be performed even if the corresponding algorithms
2888 have been removed entirely. This was also the last step to make
2889 OpenSSL compilable with DJGPP under all reasonable conditions.
2890 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2892 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2893 to allow version independent disabling of normally unselected ciphers,
2894 which may be activated as a side-effect of selecting a single cipher.
2896 (E.g., cipher list string "RSA" enables ciphersuites that are left
2897 out of "ALL" because they do not provide symmetric encryption.
2898 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2899 [Lutz Jaenicke, Bodo Moeller]
2901 *) Add appropriate support for separate platform-dependent build
2902 directories. The recommended way to make a platform-dependent
2903 build directory is the following (tested on Linux), maybe with
2906 # Place yourself outside of the OpenSSL source tree. In
2907 # this example, the environment variable OPENSSL_SOURCE
2908 # is assumed to contain the absolute OpenSSL source directory.
2909 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2910 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2911 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2912 mkdir -p `dirname $F`
2913 ln -s $OPENSSL_SOURCE/$F $F
2916 To be absolutely sure not to disturb the source tree, a "make clean"
2917 is a good thing. If it isn't successfull, don't worry about it,
2918 it probably means the source directory is very clean.
2921 *) Make sure any ENGINE control commands make local copies of string
2922 pointers passed to them whenever necessary. Otherwise it is possible
2923 the caller may have overwritten (or deallocated) the original string
2924 data when a later ENGINE operation tries to use the stored values.
2925 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2927 *) Improve diagnostics in file reading and command-line digests.
2928 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2930 *) Add AES modes CFB and OFB to the object database. Correct an
2931 error in AES-CFB decryption.
2934 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2935 allows existing EVP_CIPHER_CTX structures to be reused after
2936 calling EVP_*Final(). This behaviour is used by encryption
2937 BIOs and some applications. This has the side effect that
2938 applications must explicitly clean up cipher contexts with
2939 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2942 *) Check the values of dna and dnb in bn_mul_recursive before calling
2943 bn_mul_comba (a non zero value means the a or b arrays do not contain
2944 n2 elements) and fallback to bn_mul_normal if either is not zero.
2947 *) Fix escaping of non-ASCII characters when using the -subj option
2948 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2951 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2952 form for "surname", serialNumber has no short form.
2953 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2954 therefore remove "mail" short name for "internet 7".
2955 The OID for unique identifiers in X509 certificates is
2956 x500UniqueIdentifier, not uniqueIdentifier.
2957 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2960 *) Add an "init" command to the ENGINE config module and auto initialize
2961 ENGINEs. Without any "init" command the ENGINE will be initialized
2962 after all ctrl commands have been executed on it. If init=1 the
2963 ENGINE is initailized at that point (ctrls before that point are run
2964 on the uninitialized ENGINE and after on the initialized one). If
2965 init=0 then the ENGINE will not be iniatialized at all.
2968 *) Fix the 'app_verify_callback' interface so that the user-defined
2969 argument is actually passed to the callback: In the
2970 SSL_CTX_set_cert_verify_callback() prototype, the callback
2971 declaration has been changed from
2974 int (*cb)(X509_STORE_CTX *,void *);
2975 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2976 i=s->ctx->app_verify_callback(&ctx)
2977 has been changed into
2978 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2980 To update applications using SSL_CTX_set_cert_verify_callback(),
2981 a dummy argument can be added to their callback functions.
2982 [D. K. Smetters <smetters@parc.xerox.com>]
2984 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2985 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2987 *) Add and OPENSSL_LOAD_CONF define which will cause
2988 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2989 This allows older applications to transparently support certain
2990 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2991 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2992 load the config file and OPENSSL_add_all_algorithms_conf() which will
2993 always load it have also been added.
2996 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2997 Adjust NIDs and EVP layer.
2998 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3000 *) Config modules support in openssl utility.
3002 Most commands now load modules from the config file,
3003 though in a few (such as version) this isn't done
3004 because it couldn't be used for anything.
3006 In the case of ca and req the config file used is
3007 the same as the utility itself: that is the -config
3008 command line option can be used to specify an
3012 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3013 use "openssl_conf" if filename is NULL use default openssl config file.
3016 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3017 config section name. Add a new flag to tolerate a missing config file
3018 and move code to CONF_modules_load_file().
3021 *) Support for crypto accelerator cards from Accelerated Encryption
3022 Processing, www.aep.ie. (Use engine 'aep')
3023 The support was copied from 0.9.6c [engine] and adapted/corrected
3024 to work with the new engine framework.
3025 [AEP Inc. and Richard Levitte]
3027 *) Support for SureWare crypto accelerator cards from Baltimore
3028 Technologies. (Use engine 'sureware')
3029 The support was copied from 0.9.6c [engine] and adapted
3030 to work with the new engine framework.
3033 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3034 make the newer ENGINE framework commands for the CHIL engine work.
3035 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3037 *) Make it possible to produce shared libraries on ReliantUNIX.
3038 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3040 *) Add the configuration target debug-linux-ppro.
3041 Make 'openssl rsa' use the general key loading routines
3042 implemented in apps.c, and make those routines able to
3043 handle the key format FORMAT_NETSCAPE and the variant
3045 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3047 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3048 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3050 *) Add -keyform to rsautl, and document -engine.
3051 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3053 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3054 BIO_R_NO_SUCH_FILE error code rather than the generic
3055 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3058 *) Add new functions
3060 ERR_peek_last_error_line
3061 ERR_peek_last_error_line_data.
3062 These are similar to
3065 ERR_peek_error_line_data,
3066 but report on the latest error recorded rather than the first one
3067 still in the error queue.
3068 [Ben Laurie, Bodo Moeller]
3070 *) default_algorithms option in ENGINE config module. This allows things
3072 default_algorithms = ALL
3073 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3076 *) Prelminary ENGINE config module.
3079 *) New experimental application configuration code.
3082 *) Change the AES code to follow the same name structure as all other
3083 symmetric ciphers, and behave the same way. Move everything to
3084 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3085 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3087 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3088 [Ben Laurie and Theo de Raadt]
3090 *) Add option to output public keys in req command.
3091 [Massimiliano Pala madwolf@openca.org]
3093 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3094 (up to about 10% better than before for P-192 and P-224).
3097 *) New functions/macros
3099 SSL_CTX_set_msg_callback(ctx, cb)
3100 SSL_CTX_set_msg_callback_arg(ctx, arg)
3101 SSL_set_msg_callback(ssl, cb)
3102 SSL_set_msg_callback_arg(ssl, arg)
3104 to request calling a callback function
3106 void cb(int write_p, int version, int content_type,
3107 const void *buf, size_t len, SSL *ssl, void *arg)
3109 whenever a protocol message has been completely received
3110 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3111 protocol version according to which the SSL library interprets
3112 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3113 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3114 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3115 specification (change_cipher_spec(20), alert(21), handshake(22)).
3116 'buf' and 'len' point to the actual message, 'ssl' to the
3117 SSL object, and 'arg' is the application-defined value set by
3118 SSL[_CTX]_set_msg_callback_arg().
3120 'openssl s_client' and 'openssl s_server' have new '-msg' options
3121 to enable a callback that displays all protocol messages.
3124 *) Change the shared library support so shared libraries are built as
3125 soon as the corresponding static library is finished, and thereby get
3126 openssl and the test programs linked against the shared library.
3127 This still only happens when the keyword "shard" has been given to
3128 the configuration scripts.
3130 NOTE: shared library support is still an experimental thing, and
3131 backward binary compatibility is still not guaranteed.
3132 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3134 *) Add support for Subject Information Access extension.
3135 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3137 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3138 additional bytes when new memory had to be allocated, not just
3139 when reusing an existing buffer.
3142 *) New command line and configuration option 'utf8' for the req command.
3143 This allows field values to be specified as UTF8 strings.
3146 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3147 runs for the former and machine-readable output for the latter.
3150 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3151 of the e-mail address in the DN (i.e., it will go into a certificate
3152 extension only). The new configuration file option 'email_in_dn = no'
3153 has the same effect.
3154 [Massimiliano Pala madwolf@openca.org]
3156 *) Change all functions with names starting with des_ to be starting
3157 with DES_ instead. Add wrappers that are compatible with libdes,
3158 but are named _ossl_old_des_*. Finally, add macros that map the
3159 des_* symbols to the corresponding _ossl_old_des_* if libdes
3160 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3161 desired, the des_* symbols will be mapped to DES_*, with one
3164 Since we provide two compatibility mappings, the user needs to
3165 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3166 compatibility is desired. The default (i.e., when that macro
3167 isn't defined) is OpenSSL 0.9.6c compatibility.
3169 There are also macros that enable and disable the support of old
3170 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3171 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3172 are defined, the default will apply: to support the old des routines.
3174 In either case, one must include openssl/des.h to get the correct
3175 definitions. Do not try to just include openssl/des_old.h, that
3178 NOTE: This is a major break of an old API into a new one. Software
3179 authors are encouraged to switch to the DES_ style functions. Some
3180 time in the future, des_old.h and the libdes compatibility functions
3181 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3182 default), and then completely removed.
3185 *) Test for certificates which contain unsupported critical extensions.
3186 If such a certificate is found during a verify operation it is
3187 rejected by default: this behaviour can be overridden by either
3188 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3189 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3190 X509_supported_extension() has also been added which returns 1 if a
3191 particular extension is supported.
3194 *) Modify the behaviour of EVP cipher functions in similar way to digests
3195 to retain compatibility with existing code.
3198 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3199 compatibility with existing code. In particular the 'ctx' parameter does
3200 not have to be to be initialized before the call to EVP_DigestInit() and
3201 it is tidied up after a call to EVP_DigestFinal(). New function
3202 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3203 EVP_MD_CTX_copy() changed to not require the destination to be
3204 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3205 requires the destination to be valid.
3207 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3208 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3211 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3212 so that complete 'Handshake' protocol structures are kept in memory
3213 instead of overwriting 'msg_type' and 'length' with 'body' data.
3216 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3217 [Massimo Santin via Richard Levitte]
3219 *) Major restructuring to the underlying ENGINE code. This includes
3220 reduction of linker bloat, separation of pure "ENGINE" manipulation
3221 (initialisation, etc) from functionality dealing with implementations
3222 of specific crypto iterfaces. This change also introduces integrated
3223 support for symmetric ciphers and digest implementations - so ENGINEs
3224 can now accelerate these by providing EVP_CIPHER and EVP_MD
3225 implementations of their own. This is detailed in crypto/engine/README
3226 as it couldn't be adequately described here. However, there are a few
3227 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3228 were changed in the original introduction of ENGINE code have now
3229 reverted back - the hooking from this code to ENGINE is now a good
3230 deal more passive and at run-time, operations deal directly with
3231 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3232 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3233 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3234 they were not being used by the framework as there is no concept of a
3235 BIGNUM_METHOD and they could not be generalised to the new
3236 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3237 ENGINE_cpy() has been removed as it cannot be consistently defined in
3241 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3244 *) Change mkdef.pl to sort symbols that get the same entry number,
3245 and make sure the automatically generated functions ERR_load_*
3246 become part of libeay.num as well.
3249 *) New function SSL_renegotiate_pending(). This returns true once
3250 renegotiation has been requested (either SSL_renegotiate() call
3251 or HelloRequest/ClientHello receveived from the peer) and becomes
3252 false once a handshake has been completed.
3253 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3254 sends a HelloRequest, but does not ensure that a handshake takes
3255 place. SSL_renegotiate_pending() is useful for checking if the
3256 client has followed the request.)
3259 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3260 By default, clients may request session resumption even during
3261 renegotiation (if session ID contexts permit); with this option,
3262 session resumption is possible only in the first handshake.
3264 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3265 more bits available for options that should not be part of
3266 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3269 *) Add some demos for certificate and certificate request creation.
3272 *) Make maximum certificate chain size accepted from the peer application
3273 settable (SSL*_get/set_max_cert_list()), as proposed by
3274 "Douglas E. Engert" <deengert@anl.gov>.
3277 *) Add support for shared libraries for Unixware-7
3278 (Boyd Lynn Gerber <gerberb@zenez.com>).
3281 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3282 be done prior to destruction. Use this to unload error strings from
3283 ENGINEs that load their own error strings. NB: This adds two new API
3284 functions to "get" and "set" this destroy handler in an ENGINE.
3287 *) Alter all existing ENGINE implementations (except "openssl" and
3288 "openbsd") to dynamically instantiate their own error strings. This
3289 makes them more flexible to be built both as statically-linked ENGINEs
3290 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3291 Also, add stub code to each that makes building them as self-contained
3292 shared-libraries easier (see README.ENGINE).
3295 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3296 implementations into applications that are completely implemented in
3297 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3298 commands that can be used to configure what shared-library to load and
3299 to control aspects of the way it is handled. Also, made an update to
3300 the README.ENGINE file that brings its information up-to-date and
3301 provides some information and instructions on the "dynamic" ENGINE
3302 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3305 *) Make it possible to unload ranges of ERR strings with a new
3306 "ERR_unload_strings" function.
3309 *) Add a copy() function to EVP_MD.
3312 *) Make EVP_MD routines take a context pointer instead of just the
3313 md_data void pointer.
3316 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3317 that the digest can only process a single chunk of data
3318 (typically because it is provided by a piece of
3319 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3320 is only going to provide a single chunk of data, and hence the
3321 framework needn't accumulate the data for oneshot drivers.
3324 *) As with "ERR", make it possible to replace the underlying "ex_data"
3325 functions. This change also alters the storage and management of global
3326 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3327 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3328 index counters. The API functions that use this state have been changed
3329 to take a "class_index" rather than pointers to the class's local STACK
3330 and counter, and there is now an API function to dynamically create new
3331 classes. This centralisation allows us to (a) plug a lot of the
3332 thread-safety problems that existed, and (b) makes it possible to clean
3333 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3334 such data would previously have always leaked in application code and
3335 workarounds were in place to make the memory debugging turn a blind eye
3336 to it. Application code that doesn't use this new function will still
3337 leak as before, but their memory debugging output will announce it now
3338 rather than letting it slide.
3340 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3341 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3342 has a return value to indicate success or failure.
3345 *) Make it possible to replace the underlying "ERR" functions such that the
3346 global state (2 LHASH tables and 2 locks) is only used by the "default"
3347 implementation. This change also adds two functions to "get" and "set"
3348 the implementation prior to it being automatically set the first time
3349 any other ERR function takes place. Ie. an application can call "get",
3350 pass the return value to a module it has just loaded, and that module
3351 can call its own "set" function using that value. This means the
3352 module's "ERR" operations will use (and modify) the error state in the
3353 application and not in its own statically linked copy of OpenSSL code.
3356 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3357 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3358 the operation, and provides a more encapsulated way for external code
3359 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3360 to use these functions rather than manually incrementing the counts.
3362 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3365 *) Add EVP test program.
3368 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3371 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3372 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3373 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3374 These allow a CRL to be built without having to access X509_CRL fields
3375 directly. Modify 'ca' application to use new functions.
3378 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3379 bug workarounds. Rollback attack detection is a security feature.
3380 The problem will only arise on OpenSSL servers when TLSv1 is not
3381 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3382 Software authors not wanting to support TLSv1 will have special reasons
3383 for their choice and can explicitly enable this option.
3384 [Bodo Moeller, Lutz Jaenicke]
3386 *) Rationalise EVP so it can be extended: don't include a union of
3387 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3388 (similar to those existing for EVP_CIPHER_CTX).
3393 EVP_MD_CTX_init(&md); /* new function call */
3394 EVP_DigestInit(&md, EVP_sha1());
3395 EVP_DigestUpdate(&md, in, len);
3396 EVP_DigestFinal(&md, out, NULL);
3397 EVP_MD_CTX_cleanup(&md); /* new function call */
3401 *) Make DES key schedule conform to the usual scheme, as well as
3402 correcting its structure. This means that calls to DES functions
3403 now have to pass a pointer to a des_key_schedule instead of a
3404 plain des_key_schedule (which was actually always a pointer
3407 des_key_schedule ks;
3409 des_set_key_checked(..., &ks);
3410 des_ncbc_encrypt(..., &ks, ...);
3412 (Note that a later change renames 'des_...' into 'DES_...'.)
3415 *) Initial reduction of linker bloat: the use of some functions, such as
3416 PEM causes large amounts of unused functions to be linked in due to
3417 poor organisation. For example pem_all.c contains every PEM function
3418 which has a knock on effect of linking in large amounts of (unused)
3419 ASN1 code. Grouping together similar functions and splitting unrelated
3420 functions prevents this.
3423 *) Cleanup of EVP macros.
3426 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3427 correct _ecb suffix.
3430 *) Add initial OCSP responder support to ocsp application. The
3431 revocation information is handled using the text based index
3432 use by the ca application. The responder can either handle
3433 requests generated internally, supplied in files (for example
3434 via a CGI script) or using an internal minimal server.
3437 *) Add configuration choices to get zlib compression for TLS.
3440 *) Changes to Kerberos SSL for RFC 2712 compliance:
3441 1. Implemented real KerberosWrapper, instead of just using
3442 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3443 2. Implemented optional authenticator field of KerberosWrapper.
3445 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3446 and authenticator structs; see crypto/krb5/.
3448 Generalized Kerberos calls to support multiple Kerberos libraries.
3449 [Vern Staats <staatsvr@asc.hpc.mil>,
3450 Jeffrey Altman <jaltman@columbia.edu>
3451 via Richard Levitte]
3453 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3454 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3455 values for each of the key sizes rather than having just
3456 parameters (and 'speed' generating keys each time).
3459 *) Speed up EVP routines.
3462 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3463 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3464 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3465 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3467 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3468 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3469 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3472 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3474 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3477 *) Added the OS2-EMX target.
3478 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3480 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3481 to support NCONF routines in extension code. New function CONF_set_nconf()
3482 to allow functions which take an NCONF to also handle the old LHASH
3483 structure: this means that the old CONF compatible routines can be
3484 retained (in particular wrt extensions) without having to duplicate the
3485 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3488 *) Enhance the general user interface with mechanisms for inner control
3489 and with possibilities to have yes/no kind of prompts.
3492 *) Change all calls to low level digest routines in the library and
3493 applications to use EVP. Add missing calls to HMAC_cleanup() and
3494 don't assume HMAC_CTX can be copied using memcpy().
3495 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3497 *) Add the possibility to control engines through control names but with
3498 arbitrary arguments instead of just a string.
3499 Change the key loaders to take a UI_METHOD instead of a callback
3500 function pointer. NOTE: this breaks binary compatibility with earlier
3501 versions of OpenSSL [engine].
3502 Adapt the nCipher code for these new conditions and add a card insertion
3506 *) Enhance the general user interface with mechanisms to better support
3507 dialog box interfaces, application-defined prompts, the possibility
3508 to use defaults (for example default passwords from somewhere else)
3509 and interrupts/cancellations.
3512 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3513 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3516 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3517 tidy up some unnecessarily weird code in 'sk_new()').
3518 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3520 *) Change the key loading routines for ENGINEs to use the same kind
3521 callback (pem_password_cb) as all other routines that need this
3525 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3526 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3527 than this minimum value is recommended.
3530 *) New random seeder for OpenVMS, using the system process statistics
3531 that are easily reachable.
3534 *) Windows apparently can't transparently handle global
3535 variables defined in DLLs. Initialisations such as:
3537 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3539 wont compile. This is used by the any applications that need to
3540 declare their own ASN1 modules. This was fixed by adding the option
3541 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3542 needed for static libraries under Win32.
3545 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3546 setting of purpose and trust fields. New X509_STORE trust and
3547 purpose functions and tidy up setting in other SSL functions.
3550 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3551 structure. These are inherited by X509_STORE_CTX when it is
3552 initialised. This allows various defaults to be set in the
3553 X509_STORE structure (such as flags for CRL checking and custom
3554 purpose or trust settings) for functions which only use X509_STORE_CTX
3555 internally such as S/MIME.
3557 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3558 trust settings if they are not set in X509_STORE. This allows X509_STORE
3559 purposes and trust (in S/MIME for example) to override any set by default.
3561 Add command line options for CRL checking to smime, s_client and s_server
3565 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3566 are set then the CRL is looked up in the X509_STORE structure and
3567 its validity and signature checked, then if the certificate is found
3568 in the CRL the verify fails with a revoked error.
3570 Various new CRL related callbacks added to X509_STORE_CTX structure.
3572 Command line options added to 'verify' application to support this.
3574 This needs some additional work, such as being able to handle multiple
3575 CRLs with different times, extension based lookup (rather than just
3576 by subject name) and ultimately more complete V2 CRL extension
3580 *) Add a general user interface API (crypto/ui/). This is designed
3581 to replace things like des_read_password and friends (backward
3582 compatibility functions using this new API are provided).
3583 The purpose is to remove prompting functions from the DES code
3584 section as well as provide for prompting through dialog boxes in
3585 a window system and the like.
3588 *) Add "ex_data" support to ENGINE so implementations can add state at a
3589 per-structure level rather than having to store it globally.
3592 *) Make it possible for ENGINE structures to be copied when retrieved by
3593 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3594 This causes the "original" ENGINE structure to act like a template,
3595 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3596 operational state can be localised to each ENGINE structure, despite the
3597 fact they all share the same "methods". New ENGINE structures returned in
3598 this case have no functional references and the return value is the single
3599 structural reference. This matches the single structural reference returned
3600 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3604 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3605 needs to match any other type at all we need to manually clear the
3609 *) Changes to the "openssl engine" utility to include;
3610 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3611 about an ENGINE's available control commands.
3612 - executing control commands from command line arguments using the
3613 '-pre' and '-post' switches. '-post' is only used if '-t' is
3614 specified and the ENGINE is successfully initialised. The syntax for
3615 the individual commands are colon-separated, for example;
3616 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3619 *) New dynamic control command support for ENGINEs. ENGINEs can now
3620 declare their own commands (numbers), names (strings), descriptions,
3621 and input types for run-time discovery by calling applications. A
3622 subset of these commands are implicitly classed as "executable"
3623 depending on their input type, and only these can be invoked through
3624 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3625 can be based on user input, config files, etc). The distinction is
3626 that "executable" commands cannot return anything other than a boolean
3627 result and can only support numeric or string input, whereas some
3628 discoverable commands may only be for direct use through
3629 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3630 pointers, or other custom uses. The "executable" commands are to
3631 support parameterisations of ENGINE behaviour that can be
3632 unambiguously defined by ENGINEs and used consistently across any
3633 OpenSSL-based application. Commands have been added to all the
3634 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3635 control over shared-library paths without source code alterations.
3638 *) Changed all ENGINE implementations to dynamically allocate their
3639 ENGINEs rather than declaring them statically. Apart from this being
3640 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3641 this also allows the implementations to compile without using the
3642 internal engine_int.h header.
3645 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3646 'const' value. Any code that should be able to modify a RAND_METHOD
3647 should already have non-const pointers to it (ie. they should only
3648 modify their own ones).
3651 *) Made a variety of little tweaks to the ENGINE code.
3652 - "atalla" and "ubsec" string definitions were moved from header files
3653 to C code. "nuron" string definitions were placed in variables
3654 rather than hard-coded - allowing parameterisation of these values
3655 later on via ctrl() commands.
3656 - Removed unused "#if 0"'d code.
3657 - Fixed engine list iteration code so it uses ENGINE_free() to release
3658 structural references.
3659 - Constified the RAND_METHOD element of ENGINE structures.
3660 - Constified various get/set functions as appropriate and added
3661 missing functions (including a catch-all ENGINE_cpy that duplicates
3662 all ENGINE values onto a new ENGINE except reference counts/state).
3663 - Removed NULL parameter checks in get/set functions. Setting a method
3664 or function to NULL is a way of cancelling out a previously set
3665 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3666 and doesn't justify the extra error symbols and code.
3667 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3668 flags from engine_int.h to engine.h.
3669 - Changed prototypes for ENGINE handler functions (init(), finish(),
3670 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3673 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3674 to the algorithm using long division. The binary algorithm can be
3675 used only if the modulus is odd. On 32-bit systems, it is faster
3676 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3677 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3678 up to 450 bits. In 64-bit environments, the binary algorithm
3679 appears to be advantageous for much longer moduli; here we use it
3680 for moduli up to 2048 bits.
3683 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3684 could not support the combine flag in choice fields.
3687 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3688 extensions from a certificate request to the certificate.
3691 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3692 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3693 file: this allows the display of the certificate about to be
3694 signed to be customised, to allow certain fields to be included
3695 or excluded and extension details. The old system didn't display
3696 multicharacter strings properly, omitted fields not in the policy
3697 and couldn't display additional details such as extensions.
3700 *) Function EC_POINTs_mul for multiple scalar multiplication
3701 of an arbitrary number of elliptic curve points
3702 \sum scalars[i]*points[i],
3703 optionally including the generator defined for the EC_GROUP:
3704 scalar*generator + \sum scalars[i]*points[i].
3706 EC_POINT_mul is a simple wrapper function for the typical case
3707 that the point list has just one item (besides the optional
3711 *) First EC_METHODs for curves over GF(p):
3713 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3714 operations and provides various method functions that can also
3715 operate with faster implementations of modular arithmetic.
3717 EC_GFp_mont_method() reuses most functions that are part of
3718 EC_GFp_simple_method, but uses Montgomery arithmetic.
3720 [Bodo Moeller; point addition and point doubling
3721 implementation directly derived from source code provided by
3722 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3724 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3725 crypto/ec/ec_lib.c):
3727 Curves are EC_GROUP objects (with an optional group generator)
3728 based on EC_METHODs that are built into the library.
3730 Points are EC_POINT objects based on EC_GROUP objects.
3732 Most of the framework would be able to handle curves over arbitrary
3733 finite fields, but as there are no obvious types for fields other
3734 than GF(p), some functions are limited to that for now.
3737 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3738 that the file contains a complete HTTP response.
3741 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3742 change the def and num file printf format specifier from "%-40sXXX"
3743 to "%-39s XXX". The latter will always guarantee a space after the
3744 field while the former will cause them to run together if the field
3745 is 40 of more characters long.
3748 *) Constify the cipher and digest 'method' functions and structures
3749 and modify related functions to take constant EVP_MD and EVP_CIPHER
3753 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3754 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3757 *) Modify EVP_Digest*() routines so they now return values. Although the
3758 internal software routines can never fail additional hardware versions
3762 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3764 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3765 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3768 ERR_R_NESTED_ASN1_ERROR
3770 ERR_R_MISSING_ASN1_EOS
3771 were 4 .. 9, conflicting with
3772 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3774 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3775 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3777 Add new error code 'ERR_R_INTERNAL_ERROR'.
3780 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3784 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3785 sets the subject name for a new request or supersedes the
3786 subject name in a given request. Formats that can be parsed are
3787 'CN=Some Name, OU=myOU, C=IT'
3789 'CN=Some Name/OU=myOU/C=IT'.
3791 Add options '-batch' and '-verbose' to 'openssl req'.
3792 [Massimiliano Pala <madwolf@hackmasters.net>]
3794 *) Introduce the possibility to access global variables through
3795 functions on platform were that's the best way to handle exporting
3796 global variables in shared libraries. To enable this functionality,
3797 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3798 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3799 is normally done by Configure or something similar).
3801 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3802 in the source file (foo.c) like this:
3804 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3805 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3807 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3808 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3810 OPENSSL_DECLARE_GLOBAL(int,foo);
3811 #define foo OPENSSL_GLOBAL_REF(foo)
3812 OPENSSL_DECLARE_GLOBAL(double,bar);
3813 #define bar OPENSSL_GLOBAL_REF(bar)
3815 The #defines are very important, and therefore so is including the
3816 header file everywhere where the defined globals are used.
3818 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3819 of ASN.1 items, but that structure is a bit different.
3821 The largest change is in util/mkdef.pl which has been enhanced with
3822 better and easier to understand logic to choose which symbols should
3823 go into the Windows .def files as well as a number of fixes and code
3824 cleanup (among others, algorithm keywords are now sorted
3825 lexicographically to avoid constant rewrites).
3828 *) In BN_div() keep a copy of the sign of 'num' before writing the
3829 result to 'rm' because if rm==num the value will be overwritten
3830 and produce the wrong result if 'num' is negative: this caused
3831 problems with BN_mod() and BN_nnmod().
3834 *) Function OCSP_request_verify(). This checks the signature on an
3835 OCSP request and verifies the signer certificate. The signer
3836 certificate is just checked for a generic purpose and OCSP request
3840 *) Add OCSP_check_validity() function to check the validity of OCSP
3841 responses. OCSP responses are prepared in real time and may only
3842 be a few seconds old. Simply checking that the current time lies
3843 between thisUpdate and nextUpdate max reject otherwise valid responses
3844 caused by either OCSP responder or client clock inaccuracy. Instead
3845 we allow thisUpdate and nextUpdate to fall within a certain period of
3846 the current time. The age of the response can also optionally be
3847 checked. Two new options -validity_period and -status_age added to
3851 *) If signature or public key algorithm is unrecognized print out its
3852 OID rather that just UNKNOWN.
3855 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3856 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3857 ID to be generated from the issuer certificate alone which can then be
3858 passed to OCSP_id_issuer_cmp().
3861 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3862 ASN1 modules to export functions returning ASN1_ITEM pointers
3863 instead of the ASN1_ITEM structures themselves. This adds several
3864 new macros which allow the underlying ASN1 function/structure to
3865 be accessed transparently. As a result code should not use ASN1_ITEM
3866 references directly (such as &X509_it) but instead use the relevant
3867 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3868 use of the new ASN1 code on platforms where exporting structures
3869 is problematical (for example in shared libraries) but exporting
3870 functions returning pointers to structures is not.
3873 *) Add support for overriding the generation of SSL/TLS session IDs.
3874 These callbacks can be registered either in an SSL_CTX or per SSL.
3875 The purpose of this is to allow applications to control, if they wish,
3876 the arbitrary values chosen for use as session IDs, particularly as it
3877 can be useful for session caching in multiple-server environments. A
3878 command-line switch for testing this (and any client code that wishes
3879 to use such a feature) has been added to "s_server".
3880 [Geoff Thorpe, Lutz Jaenicke]
3882 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3883 of the form '#if defined(...) || defined(...) || ...' and
3884 '#if !defined(...) && !defined(...) && ...'. This also avoids
3885 the growing number of special cases it was previously handling.
3888 *) Make all configuration macros available for application by making
3889 sure they are available in opensslconf.h, by giving them names starting
3890 with "OPENSSL_" to avoid conflicts with other packages and by making
3891 sure e_os2.h will cover all platform-specific cases together with
3893 Additionally, it is now possible to define configuration/platform-
3894 specific names (called "system identities"). In the C code, these
3895 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3896 macro with the name beginning with "OPENSSL_SYS_", which is determined
3897 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3901 *) New option -set_serial to 'req' and 'x509' this allows the serial
3902 number to use to be specified on the command line. Previously self
3903 signed certificates were hard coded with serial number 0 and the
3904 CA options of 'x509' had to use a serial number in a file which was
3908 *) New options to 'ca' utility to support V2 CRL entry extensions.
3909 Currently CRL reason, invalidity date and hold instruction are
3910 supported. Add new CRL extensions to V3 code and some new objects.
3913 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3914 disable standard block padding (aka PKCS#5 padding) in the EVP
3915 API, which was previously mandatory. This means that the data is
3916 not padded in any way and so the total length much be a multiple
3917 of the block size, otherwise an error occurs.
3920 *) Initial (incomplete) OCSP SSL support.
3923 *) New function OCSP_parse_url(). This splits up a URL into its host,
3924 port and path components: primarily to parse OCSP URLs. New -url
3925 option to ocsp utility.
3928 *) New nonce behavior. The return value of OCSP_check_nonce() now
3929 reflects the various checks performed. Applications can decide
3930 whether to tolerate certain situations such as an absent nonce
3931 in a response when one was present in a request: the ocsp application
3932 just prints out a warning. New function OCSP_add1_basic_nonce()
3933 this is to allow responders to include a nonce in a response even if
3934 the request is nonce-less.
3937 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3938 skipped when using openssl x509 multiple times on a single input file,
3939 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3942 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3943 set string type: to handle setting ASN1_TIME structures. Fix ca
3944 utility to correctly initialize revocation date of CRLs.
3947 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3948 the clients preferred ciphersuites and rather use its own preferences.
3949 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3950 Internet Explorer by ensuring unchanged hash method during stepup.
3951 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3954 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3955 to aes and add a new 'exist' option to print out symbols that don't
3959 *) Additional options to ocsp utility to allow flags to be set and
3960 additional certificates supplied.
3963 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3964 OCSP client a number of certificate to only verify the response
3968 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3969 handle the new API. Currently only ECB, CBC modes supported. Add new
3972 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3973 Encryption Standard (AES) Ciphersuites for Transport Layer
3974 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3975 not enabled by default and were not part of the "ALL" ciphersuite
3976 alias because they were not yet official; they could be
3977 explicitly requested by specifying the "AESdraft" ciphersuite
3978 group alias. In the final release of OpenSSL 0.9.7, the group
3979 alias is called "AES" and is part of "ALL".)
3980 [Ben Laurie, Steve Henson, Bodo Moeller]
3982 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3983 request to response.
3986 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3987 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3988 extract information from a certificate request. OCSP_response_create()
3989 creates a response and optionally adds a basic response structure.
3990 OCSP_basic_add1_status() adds a complete single response to a basic
3991 response and returns the OCSP_SINGLERESP structure just added (to allow
3992 extensions to be included for example). OCSP_basic_add1_cert() adds a
3993 certificate to a basic response and OCSP_basic_sign() signs a basic
3994 response with various flags. New helper functions ASN1_TIME_check()
3995 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3996 (converts ASN1_TIME to GeneralizedTime).
3999 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4000 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4001 structure from a certificate. X509_pubkey_digest() digests the public_key
4002 contents: this is used in various key identifiers.
4005 *) Make sk_sort() tolerate a NULL argument.
4006 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4008 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4009 passed by the function are trusted implicitly. If any of them signed the
4010 response then it is assumed to be valid and is not verified.
4013 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4014 to data. This was previously part of the PKCS7 ASN1 code. This
4015 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4016 [Steve Henson, reported by Kenneth R. Robinette
4017 <support@securenetterm.com>]
4019 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4020 routines: without these tracing memory leaks is very painful.
4021 Fix leaks in PKCS12 and PKCS7 routines.
4024 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4025 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4026 effectively meant GeneralizedTime would never be used. Now it
4027 is initialised to -1 but X509_time_adj() now has to check the value
4028 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4029 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4030 [Steve Henson, reported by Kenneth R. Robinette
4031 <support@securenetterm.com>]
4033 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4034 result in a zero length in the ASN1_INTEGER structure which was
4035 not consistent with the structure when d2i_ASN1_INTEGER() was used
4036 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4037 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4038 where it did not print out a minus for negative ASN1_INTEGER.
4041 *) Add summary printout to ocsp utility. The various functions which
4042 convert status values to strings have been renamed to:
4043 OCSP_response_status_str(), OCSP_cert_status_str() and
4044 OCSP_crl_reason_str() and are no longer static. New options
4045 to verify nonce values and to disable verification. OCSP response
4046 printout format cleaned up.
4049 *) Add additional OCSP certificate checks. These are those specified
4050 in RFC2560. This consists of two separate checks: the CA of the
4051 certificate being checked must either be the OCSP signer certificate
4052 or the issuer of the OCSP signer certificate. In the latter case the
4053 OCSP signer certificate must contain the OCSP signing extended key
4054 usage. This check is performed by attempting to match the OCSP
4055 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4056 in the OCSP_CERTID structures of the response.
4059 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4060 and related routines. This uses the standard OpenSSL certificate
4061 verify routines to perform initial checks (just CA validity) and
4062 to obtain the certificate chain. Then additional checks will be
4063 performed on the chain. Currently the root CA is checked to see
4064 if it is explicitly trusted for OCSP signing. This is used to set
4065 a root CA as a global signing root: that is any certificate that
4066 chains to that CA is an acceptable OCSP signing certificate.
4069 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4070 extensions from a separate configuration file.
4071 As when reading extensions from the main configuration file,
4072 the '-extensions ...' option may be used for specifying the
4074 [Massimiliano Pala <madwolf@comune.modena.it>]
4076 *) New OCSP utility. Allows OCSP requests to be generated or
4077 read. The request can be sent to a responder and the output
4078 parsed, outputed or printed in text form. Not complete yet:
4079 still needs to check the OCSP response validity.
4082 *) New subcommands for 'openssl ca':
4083 'openssl ca -status <serial>' prints the status of the cert with
4084 the given serial number (according to the index file).
4085 'openssl ca -updatedb' updates the expiry status of certificates
4087 [Massimiliano Pala <madwolf@comune.modena.it>]
4089 *) New '-newreq-nodes' command option to CA.pl. This is like
4090 '-newreq', but calls 'openssl req' with the '-nodes' option
4091 so that the resulting key is not encrypted.
4092 [Damien Miller <djm@mindrot.org>]
4094 *) New configuration for the GNU Hurd.
4095 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4097 *) Initial code to implement OCSP basic response verify. This
4098 is currently incomplete. Currently just finds the signer's
4099 certificate and verifies the signature on the response.
4102 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4103 value of OPENSSLDIR. This is available via the new '-d' option
4104 to 'openssl version', and is also included in 'openssl version -a'.
4107 *) Allowing defining memory allocation callbacks that will be given
4108 file name and line number information in additional arguments
4109 (a const char* and an int). The basic functionality remains, as
4110 well as the original possibility to just replace malloc(),
4111 realloc() and free() by functions that do not know about these
4112 additional arguments. To register and find out the current
4113 settings for extended allocation functions, the following
4114 functions are provided:
4116 CRYPTO_set_mem_ex_functions
4117 CRYPTO_set_locked_mem_ex_functions
4118 CRYPTO_get_mem_ex_functions
4119 CRYPTO_get_locked_mem_ex_functions
4121 These work the same way as CRYPTO_set_mem_functions and friends.
4122 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4123 extended allocation function is enabled.
4124 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4125 a conventional allocation function is enabled.
4126 [Richard Levitte, Bodo Moeller]
4128 *) Finish off removing the remaining LHASH function pointer casts.
4129 There should no longer be any prototype-casting required when using
4130 the LHASH abstraction, and any casts that remain are "bugs". See
4131 the callback types and macros at the head of lhash.h for details
4132 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4135 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4136 If /dev/[u]random devices are not available or do not return enough
4137 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4139 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4140 /etc/entropy will be queried once each in this sequence, quering stops
4141 when enough entropy was collected without querying more sockets.
4144 *) Change the Unix RAND_poll() variant to be able to poll several
4145 random devices, as specified by DEVRANDOM, until a sufficient amount
4146 of data has been collected. We spend at most 10 ms on each file
4147 (select timeout) and read in non-blocking mode. DEVRANDOM now
4148 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4149 (previously it was just the string "/dev/urandom"), so on typical
4150 platforms the 10 ms delay will never occur.
4151 Also separate out the Unix variant to its own file, rand_unix.c.
4152 For VMS, there's a currently-empty rand_vms.c.
4155 *) Move OCSP client related routines to ocsp_cl.c. These
4156 provide utility functions which an application needing
4157 to issue a request to an OCSP responder and analyse the
4158 response will typically need: as opposed to those which an
4159 OCSP responder itself would need which will be added later.
4161 OCSP_request_sign() signs an OCSP request with an API similar
4162 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4163 response. OCSP_response_get1_basic() extracts basic response
4164 from response. OCSP_resp_find_status(): finds and extracts status
4165 information from an OCSP_CERTID structure (which will be created
4166 when the request structure is built). These are built from lower
4167 level functions which work on OCSP_SINGLERESP structures but
4168 wont normally be used unless the application wishes to examine
4169 extensions in the OCSP response for example.
4171 Replace nonce routines with a pair of functions.
4172 OCSP_request_add1_nonce() adds a nonce value and optionally
4173 generates a random value. OCSP_check_nonce() checks the
4174 validity of the nonce in an OCSP response.
4177 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4178 This doesn't copy the supplied OCSP_CERTID and avoids the
4179 need to free up the newly created id. Change return type
4180 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4181 This can then be used to add extensions to the request.
4182 Deleted OCSP_request_new(), since most of its functionality
4183 is now in OCSP_REQUEST_new() (and the case insensitive name
4184 clash) apart from the ability to set the request name which
4185 will be added elsewhere.
4188 *) Update OCSP API. Remove obsolete extensions argument from
4189 various functions. Extensions are now handled using the new
4190 OCSP extension code. New simple OCSP HTTP function which
4191 can be used to send requests and parse the response.
4194 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4195 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4196 uses the special reorder version of SET OF to sort the attributes
4197 and reorder them to match the encoded order. This resolves a long
4198 standing problem: a verify on a PKCS7 structure just after signing
4199 it used to fail because the attribute order did not match the
4200 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4201 it uses the received order. This is necessary to tolerate some broken
4202 software that does not order SET OF. This is handled by encoding
4203 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4204 to produce the required SET OF.
4207 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4208 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4209 files to get correct declarations of the ASN.1 item variables.
4212 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4213 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4214 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4215 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4216 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4217 ASN1_ITEM and no wrapper functions.
4220 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4221 replace the old function pointer based I/O routines. Change most of
4222 the *_d2i_bio() and *_d2i_fp() functions to use these.
4225 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4226 lines, recognice more "algorithms" that can be deselected, and make
4227 it complain about algorithm deselection that isn't recognised.
4230 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4231 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4232 to use new functions. Add NO_ASN1_OLD which can be set to remove
4233 some old style ASN1 functions: this can be used to determine if old
4234 code will still work when these eventually go away.
4237 *) New extension functions for OCSP structures, these follow the
4238 same conventions as certificates and CRLs.
4241 *) New function X509V3_add1_i2d(). This automatically encodes and
4242 adds an extension. Its behaviour can be customised with various
4243 flags to append, replace or delete. Various wrappers added for
4244 certifcates and CRLs.
4247 *) Fix to avoid calling the underlying ASN1 print routine when
4248 an extension cannot be parsed. Correct a typo in the
4249 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4252 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4253 entries for variables.
4256 *) Add functionality to apps/openssl.c for detecting locking
4257 problems: As the program is single-threaded, all we have
4258 to do is register a locking callback using an array for
4259 storing which locks are currently held by the program.
4262 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4263 SSL_get_ex_data_X509_STORE_idx(), which is used in
4264 ssl_verify_cert_chain() and thus can be called at any time
4265 during TLS/SSL handshakes so that thread-safety is essential.
4266 Unfortunately, the ex_data design is not at all suited
4267 for multi-threaded use, so it probably should be abolished.
4270 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4271 [Broadcom, tweaked and integrated by Geoff Thorpe]
4273 *) Move common extension printing code to new function
4274 X509V3_print_extensions(). Reorganise OCSP print routines and
4275 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4278 *) New function X509_signature_print() to remove duplication in some
4282 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4283 set (this was treated exactly the same as SET OF previously). This
4284 is used to reorder the STACK representing the structure to match the
4285 encoding. This will be used to get round a problem where a PKCS7
4286 structure which was signed could not be verified because the STACK
4287 order did not reflect the encoded order.
4290 *) Reimplement the OCSP ASN1 module using the new code.
4293 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4294 for its ASN1 operations. The old style function pointers still exist
4295 for now but they will eventually go away.
4298 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4299 completely replaces the old ASN1 functionality with a table driven
4300 encoder and decoder which interprets an ASN1_ITEM structure describing
4301 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4302 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4303 has also been converted to the new form.
4306 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4307 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4308 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4309 for negative moduli.
4312 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4313 of not touching the result's sign bit.
4316 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4320 *) Changed the LHASH code to use prototypes for callbacks, and created
4321 macros to declare and implement thin (optionally static) functions
4322 that provide type-safety and avoid function pointer casting for the
4323 type-specific callbacks.
4326 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4328 [Veers Staats <staatsvr@asc.hpc.mil>,
4329 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4331 *) Reformat the FAQ so the different questions and answers can be divided
4332 in sections depending on the subject.
4335 *) Have the zlib compression code load ZLIB.DLL dynamically under
4339 *) New function BN_mod_sqrt for computing square roots modulo a prime
4340 (using the probabilistic Tonelli-Shanks algorithm unless
4341 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4342 be handled deterministically).
4343 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4345 *) Make BN_mod_inverse faster by explicitly handling small quotients
4346 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4347 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4350 *) New function BN_kronecker.
4353 *) Fix BN_gcd so that it works on negative inputs; the result is
4354 positive unless both parameters are zero.
4355 Previously something reasonably close to an infinite loop was
4356 possible because numbers could be growing instead of shrinking
4357 in the implementation of Euclid's algorithm.
4360 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4361 sign of the number in question.
4363 Fix BN_is_word(a,w) to work correctly for w == 0.
4365 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4366 because its test if the absolute value of 'a' equals 'w'.
4367 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4368 it exists mostly for use in the implementations of BN_is_zero(),
4369 BN_is_one(), and BN_is_word().
4372 *) New function BN_swap.
4375 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4376 the exponentiation functions are more likely to produce reasonable
4377 results on negative inputs.
4380 *) Change BN_mod_mul so that the result is always non-negative.
4381 Previously, it could be negative if one of the factors was negative;
4382 I don't think anyone really wanted that behaviour.
4385 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4386 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4387 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4388 and add new functions:
4397 BN_mod_lshift1_quick
4401 These functions always generate non-negative results.
4403 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4404 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4406 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4407 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4408 be reduced modulo m.
4409 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4412 The following entry accidentily appeared in the CHANGES file
4413 distributed with OpenSSL 0.9.7. The modifications described in
4414 it do *not* apply to OpenSSL 0.9.7.
4416 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4417 was actually never needed) and in BN_mul(). The removal in BN_mul()
4418 required a small change in bn_mul_part_recursive() and the addition
4419 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4420 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4421 bn_sub_words() and bn_add_words() except they take arrays with
4426 *) In 'openssl passwd', verify passwords read from the terminal
4427 unless the '-salt' option is used (which usually means that
4428 verification would just waste user's time since the resulting
4429 hash is going to be compared with some given password hash)
4430 or the new '-noverify' option is used.
4432 This is an incompatible change, but it does not affect
4433 non-interactive use of 'openssl passwd' (passwords on the command
4434 line, '-stdin' option, '-in ...' option) and thus should not
4438 *) Remove all references to RSAref, since there's no more need for it.
4441 *) Make DSO load along a path given through an environment variable
4442 (SHLIB_PATH) with shl_load().
4445 *) Constify the ENGINE code as a result of BIGNUM constification.
4446 Also constify the RSA code and most things related to it. In a
4447 few places, most notable in the depth of the ASN.1 code, ugly
4448 casts back to non-const were required (to be solved at a later
4452 *) Make it so the openssl application has all engines loaded by default.
4455 *) Constify the BIGNUM routines a little more.
4458 *) Add the following functions:
4460 ENGINE_load_cswift()
4462 ENGINE_load_atalla()
4464 ENGINE_load_builtin_engines()
4466 That way, an application can itself choose if external engines that
4467 are built-in in OpenSSL shall ever be used or not. The benefit is
4468 that applications won't have to be linked with libdl or other dso
4469 libraries unless it's really needed.
4471 Changed 'openssl engine' to load all engines on demand.
4472 Changed the engine header files to avoid the duplication of some
4473 declarations (they differed!).
4476 *) 'openssl engine' can now list capabilities.
4479 *) Better error reporting in 'openssl engine'.
4482 *) Never call load_dh_param(NULL) in s_server.
4485 *) Add engine application. It can currently list engines by name and
4486 identity, and test if they are actually available.
4489 *) Improve RPM specification file by forcing symbolic linking and making
4490 sure the installed documentation is also owned by root.root.
4491 [Damien Miller <djm@mindrot.org>]
4493 *) Give the OpenSSL applications more possibilities to make use of
4494 keys (public as well as private) handled by engines.
4497 *) Add OCSP code that comes from CertCo.
4500 *) Add VMS support for the Rijndael code.
4503 *) Added untested support for Nuron crypto accelerator.
4506 *) Add support for external cryptographic devices. This code was
4507 previously distributed separately as the "engine" branch.
4508 [Geoff Thorpe, Richard Levitte]
4510 *) Rework the filename-translation in the DSO code. It is now possible to
4511 have far greater control over how a "name" is turned into a filename
4512 depending on the operating environment and any oddities about the
4513 different shared library filenames on each system.
4516 *) Support threads on FreeBSD-elf in Configure.
4519 *) Fix for SHA1 assembly problem with MASM: it produces
4520 warnings about corrupt line number information when assembling
4521 with debugging information. This is caused by the overlapping
4523 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4526 NCONF_get_number() has no error checking at all. As a replacement,
4527 NCONF_get_number_e() is defined (_e for "error checking") and is
4528 promoted strongly. The old NCONF_get_number is kept around for
4529 binary backward compatibility.
4530 Make it possible for methods to load from something other than a BIO,
4531 by providing a function pointer that is given a name instead of a BIO.
4532 For example, this could be used to load configuration data from an
4536 *) Fix for non blocking accept BIOs. Added new I/O special reason
4537 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4538 with non blocking I/O was not possible because no retry code was
4539 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4543 *) Added the beginnings of Rijndael support.
4546 *) Fix for bug in DirectoryString mask setting. Add support for
4547 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4548 to allow certificate printing to more controllable, additional
4549 'certopt' option to 'x509' to allow new printing options to be
4553 *) Clean old EAY MD5 hack from e_os.h.
4556 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4558 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4559 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4560 [Joe Orton, Steve Henson]
4562 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4564 *) Fix additional bug revealed by the NISCC test suite:
4566 Stop bug triggering large recursion when presented with
4567 certain ASN.1 tags (CVE-2003-0851)
4570 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4572 *) Fix various bugs revealed by running the NISCC test suite:
4574 Stop out of bounds reads in the ASN1 code when presented with
4575 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4577 If verify callback ignores invalid public key errors don't try to check
4578 certificate signature with the NULL public key.
4582 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4583 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4587 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4588 extra data after the compression methods not only for TLS 1.0
4589 but also for SSL 3.0 (as required by the specification).
4590 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4592 *) Change X509_certificate_type() to mark the key as exported/exportable
4593 when it's 512 *bits* long, not 512 bytes.
4596 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4598 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4599 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4600 a protocol version number mismatch like a decryption error
4601 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4604 *) Turn on RSA blinding by default in the default implementation
4605 to avoid a timing attack. Applications that don't want it can call
4606 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4607 They would be ill-advised to do so in most cases.
4608 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4610 *) Change RSA blinding code so that it works when the PRNG is not
4611 seeded (in this case, the secret RSA exponent is abused as
4612 an unpredictable seed -- if it is not unpredictable, there
4613 is no point in blinding anyway). Make RSA blinding thread-safe
4614 by remembering the creator's thread ID in rsa->blinding and
4615 having all other threads use local one-time blinding factors
4616 (this requires more computation than sharing rsa->blinding, but
4617 avoids excessive locking; and if an RSA object is not shared
4618 between threads, blinding will still be very fast).
4621 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4623 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4624 via timing by performing a MAC computation even if incorrrect
4625 block cipher padding has been found. This is a countermeasure
4626 against active attacks where the attacker has to distinguish
4627 between bad padding and a MAC verification error. (CVE-2003-0078)
4629 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4630 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4631 Martin Vuagnoux (EPFL, Ilion)]
4633 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4635 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4636 memory from it's contents. This is done with a counter that will
4637 place alternating values in each byte. This can be used to solve
4638 two issues: 1) the removal of calls to memset() by highly optimizing
4639 compilers, and 2) cleansing with other values than 0, since those can
4640 be read through on certain media, for example a swap space on disk.
4643 *) Bugfix: client side session caching did not work with external caching,
4644 because the session->cipher setting was not restored when reloading
4645 from the external cache. This problem was masked, when
4646 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4647 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4650 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4651 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4652 [Zeev Lieber <zeev-l@yahoo.com>]
4654 *) Undo an undocumented change introduced in 0.9.6e which caused
4655 repeated calls to OpenSSL_add_all_ciphers() and
4656 OpenSSL_add_all_digests() to be ignored, even after calling
4660 *) Change the default configuration reader to deal with last line not
4661 being properly terminated.
4664 *) Change X509_NAME_cmp() so it applies the special rules on handling
4665 DN values that are of type PrintableString, as well as RDNs of type
4666 emailAddress where the value has the type ia5String.
4667 [stefank@valicert.com via Richard Levitte]
4669 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4670 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4671 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4672 the bitwise-OR of the two for use by the majority of applications
4673 wanting this behaviour, and update the docs. The documented
4674 behaviour and actual behaviour were inconsistent and had been
4675 changing anyway, so this is more a bug-fix than a behavioural
4677 [Geoff Thorpe, diagnosed by Nadav Har'El]
4679 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4680 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4683 *) Fix initialization code race conditions in
4684 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4685 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4686 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4687 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4688 ssl2_get_cipher_by_char(),
4689 ssl3_get_cipher_by_char().
4690 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4692 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4693 the cached sessions are flushed, as the remove_cb() might use ex_data
4694 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4695 (see [openssl.org #212]).
4696 [Geoff Thorpe, Lutz Jaenicke]
4698 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4699 length, instead of the encoding length to d2i_ASN1_OBJECT.
4702 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4704 *) [In 0.9.6g-engine release:]
4705 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4706 [Lynn Gazis <lgazis@rainbow.com>]
4708 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4710 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4711 and get fix the header length calculation.
4712 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4713 Alon Kantor <alonk@checkpoint.com> (and others),
4716 *) Use proper error handling instead of 'assertions' in buffer
4717 overflow checks added in 0.9.6e. This prevents DoS (the
4718 assertions could call abort()).
4719 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4721 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4723 *) Add various sanity checks to asn1_get_length() to reject
4724 the ASN1 length bytes if they exceed sizeof(long), will appear
4725 negative or the content length exceeds the length of the
4727 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4729 *) Fix cipher selection routines: ciphers without encryption had no flags
4730 for the cipher strength set and where therefore not handled correctly
4731 by the selection routines (PR #130).
4734 *) Fix EVP_dsa_sha macro.
4738 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4739 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4740 that was added in OpenSSL 0.9.6d.
4742 As the countermeasure turned out to be incompatible with some
4743 broken SSL implementations, the new option is part of SSL_OP_ALL.
4744 SSL_OP_ALL is usually employed when compatibility with weird SSL
4745 implementations is desired (e.g. '-bugs' option to 's_client' and
4746 's_server'), so the new option is automatically set in many
4750 *) Changes in security patch:
4752 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4753 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4754 Air Force Materiel Command, USAF, under agreement number
4757 *) Add various sanity checks to asn1_get_length() to reject
4758 the ASN1 length bytes if they exceed sizeof(long), will appear
4759 negative or the content length exceeds the length of the
4760 supplied buffer. (CVE-2002-0659)
4761 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4763 *) Assertions for various potential buffer overflows, not known to
4765 [Ben Laurie (CHATS)]
4767 *) Various temporary buffers to hold ASCII versions of integers were
4768 too small for 64 bit platforms. (CVE-2002-0655)
4769 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4771 *) Remote buffer overflow in SSL3 protocol - an attacker could
4772 supply an oversized session ID to a client. (CVE-2002-0656)
4773 [Ben Laurie (CHATS)]
4775 *) Remote buffer overflow in SSL2 protocol - an attacker could
4776 supply an oversized client master key. (CVE-2002-0656)
4777 [Ben Laurie (CHATS)]
4779 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4781 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4782 encoded as NULL) with id-dsa-with-sha1.
4783 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4785 *) Check various X509_...() return values in apps/req.c.
4786 [Nils Larsch <nla@trustcenter.de>]
4788 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4789 an end-of-file condition would erronously be flagged, when the CRLF
4790 was just at the end of a processed block. The bug was discovered when
4791 processing data through a buffering memory BIO handing the data to a
4792 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4793 <ptsekov@syntrex.com> and Nedelcho Stanev.
4796 *) Implement a countermeasure against a vulnerability recently found
4797 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4798 before application data chunks to avoid the use of known IVs
4799 with data potentially chosen by the attacker.
4802 *) Fix length checks in ssl3_get_client_hello().
4805 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4806 to prevent ssl3_read_internal() from incorrectly assuming that
4807 ssl3_read_bytes() found application data while handshake
4808 processing was enabled when in fact s->s3->in_read_app_data was
4809 merely automatically cleared during the initial handshake.
4810 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4812 *) Fix object definitions for Private and Enterprise: they were not
4813 recognized in their shortname (=lowercase) representation. Extend
4814 obj_dat.pl to issue an error when using undefined keywords instead
4815 of silently ignoring the problem (Svenning Sorensen
4816 <sss@sss.dnsalias.net>).
4819 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4820 generators, i.e. generators other than 2 and 5. (Previously, the
4821 code did not properly initialise the 'add' and 'rem' values to
4822 BN_generate_prime().)
4824 In the new general case, we do not insist that 'generator' is
4825 actually a primitive root: This requirement is rather pointless;
4826 a generator of the order-q subgroup is just as good, if not
4830 *) Map new X509 verification errors to alerts. Discovered and submitted by
4831 Tom Wu <tom@arcot.com>.
4834 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4835 returning non-zero before the data has been completely received
4836 when using non-blocking I/O.
4837 [Bodo Moeller; problem pointed out by John Hughes]
4839 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4840 [Ben Laurie, Lutz Jaenicke]
4842 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4843 Yoram Zahavi <YoramZ@gilian.com>).
4846 *) Add information about CygWin 1.3 and on, and preserve proper
4847 configuration for the versions before that.
4848 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4850 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4851 check whether we deal with a copy of a session and do not delete from
4852 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4853 <izhar@checkpoint.com>.
4856 *) Do not store session data into the internal session cache, if it
4857 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4858 flag is set). Proposed by Aslam <aslam@funk.com>.
4861 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4865 *) [In 0.9.6d-engine release:]
4866 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4867 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4869 *) Add the configuration target linux-s390x.
4870 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4872 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4873 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4874 variable as an indication that a ClientHello message has been
4875 received. As the flag value will be lost between multiple
4876 invocations of ssl3_accept when using non-blocking I/O, the
4877 function may not be aware that a handshake has actually taken
4878 place, thus preventing a new session from being added to the
4881 To avoid this problem, we now set s->new_session to 2 instead of
4882 using a local variable.
4883 [Lutz Jaenicke, Bodo Moeller]
4885 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4886 if the SSL_R_LENGTH_MISMATCH error is detected.
4887 [Geoff Thorpe, Bodo Moeller]
4889 *) New 'shared_ldflag' column in Configure platform table.
4892 *) Fix EVP_CIPHER_mode macro.
4893 ["Dan S. Camper" <dan@bti.net>]
4895 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4896 type, we must throw them away by setting rr->length to 0.
4897 [D P Chang <dpc@qualys.com>]
4899 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4901 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4902 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4903 worked incorrectly for those cases where range = 10..._2 and
4904 3*range is two bits longer than range.)
4907 *) Only add signing time to PKCS7 structures if it is not already
4911 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4912 OBJ_ld_ce should be OBJ_id_ce.
4913 Also some ip-pda OIDs in crypto/objects/objects.txt were
4914 incorrect (cf. RFC 3039).
4915 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4917 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4918 returns early because it has nothing to do.
4919 [Andy Schneider <andy.schneider@bjss.co.uk>]
4921 *) [In 0.9.6c-engine release:]
4922 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4923 [Andy Schneider <andy.schneider@bjss.co.uk>]
4925 *) [In 0.9.6c-engine release:]
4926 Add support for Cryptographic Appliance's keyserver technology.
4927 (Use engine 'keyclient')
4928 [Cryptographic Appliances and Geoff Thorpe]
4930 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4931 is called via tools/c89.sh because arguments have to be
4932 rearranged (all '-L' options must appear before the first object
4934 [Richard Shapiro <rshapiro@abinitio.com>]
4936 *) [In 0.9.6c-engine release:]
4937 Add support for Broadcom crypto accelerator cards, backported
4939 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4941 *) [In 0.9.6c-engine release:]
4942 Add support for SureWare crypto accelerator cards from
4943 Baltimore Technologies. (Use engine 'sureware')
4944 [Baltimore Technologies and Mark Cox]
4946 *) [In 0.9.6c-engine release:]
4947 Add support for crypto accelerator cards from Accelerated
4948 Encryption Processing, www.aep.ie. (Use engine 'aep')
4949 [AEP Inc. and Mark Cox]
4951 *) Add a configuration entry for gcc on UnixWare.
4952 [Gary Benson <gbenson@redhat.com>]
4954 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4955 messages are stored in a single piece (fixed-length part and
4956 variable-length part combined) and fix various bugs found on the way.
4959 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4960 instead. BIO_gethostbyname() does not know what timeouts are
4961 appropriate, so entries would stay in cache even when they have
4963 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4965 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4966 faced with a pathologically small ClientHello fragment that does
4967 not contain client_version: Instead of aborting with an error,
4968 simply choose the highest available protocol version (i.e.,
4969 TLS 1.0 unless it is disabled). In practice, ClientHello
4970 messages are never sent like this, but this change gives us
4971 strictly correct behaviour at least for TLS.
4974 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4975 never resets s->method to s->ctx->method when called from within
4976 one of the SSL handshake functions.
4977 [Bodo Moeller; problem pointed out by Niko Baric]
4979 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4980 (sent using the client's version number) if client_version is
4981 smaller than the protocol version in use. Also change
4982 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4983 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4984 the client will at least see that alert.
4987 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4991 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4992 client receives HelloRequest while in a handshake.
4993 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4995 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4996 should end in 'break', not 'goto end' which circuments various
4997 cleanups done in state SSL_ST_OK. But session related stuff
4998 must be disabled for SSL_ST_OK in the case that we just sent a
5001 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5002 before just sending a HelloRequest.
5003 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5005 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5006 reveal whether illegal block cipher padding was found or a MAC
5007 verification error occured. (Neither SSLerr() codes nor alerts
5008 are directly visible to potential attackers, but the information
5009 may leak via logfiles.)
5011 Similar changes are not required for the SSL 2.0 implementation
5012 because the number of padding bytes is sent in clear for SSL 2.0,
5013 and the extra bytes are just ignored. However ssl/s2_pkt.c
5014 failed to verify that the purported number of padding bytes is in
5018 *) Add OpenUNIX-8 support including shared libraries
5019 (Boyd Lynn Gerber <gerberb@zenez.com>).
5022 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5023 'wristwatch attack' using huge encoding parameters (cf.
5024 James H. Manger's CRYPTO 2001 paper). Note that the
5025 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5026 encoding parameters and hence was not vulnerable.
5029 *) BN_sqr() bug fix.
5030 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5032 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5033 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5034 followed by modular reduction.
5035 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5037 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5038 equivalent based on BN_pseudo_rand() instead of BN_rand().
5041 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5042 This function was broken, as the check for a new client hello message
5043 to handle SGC did not allow these large messages.
5044 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5047 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5050 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5051 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5054 *) Rework the configuration and shared library support for Tru64 Unix.
5055 The configuration part makes use of modern compiler features and
5056 still retains old compiler behavior for those that run older versions
5057 of the OS. The shared library support part includes a variant that
5058 uses the RPATH feature, and is available through the special
5059 configuration target "alpha-cc-rpath", which will never be selected
5061 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5063 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5064 with the same message size as in ssl3_get_certificate_request().
5065 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5066 messages might inadvertently be reject as too long.
5067 [Petr Lampa <lampa@fee.vutbr.cz>]
5069 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5072 *) Modified SSL library such that the verify_callback that has been set
5073 specificly for an SSL object with SSL_set_verify() is actually being
5074 used. Before the change, a verify_callback set with this function was
5075 ignored and the verify_callback() set in the SSL_CTX at the time of
5076 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5077 to allow the necessary settings.
5080 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5081 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5082 done automatically (in contradiction to the requirements of the C
5083 standard). This made problems when used from OpenSSH.
5086 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5087 dh->length and always used
5089 BN_rand_range(priv_key, dh->p).
5091 BN_rand_range() is not necessary for Diffie-Hellman, and this
5092 specific range makes Diffie-Hellman unnecessarily inefficient if
5093 dh->length (recommended exponent length) is much smaller than the
5094 length of dh->p. We could use BN_rand_range() if the order of
5095 the subgroup was stored in the DH structure, but we only have
5100 BN_rand(priv_key, l, ...)
5102 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5108 RSA_eay_public_encrypt
5109 RSA_eay_private_decrypt
5110 RSA_eay_private_encrypt (signing)
5111 RSA_eay_public_decrypt (signature verification)
5113 (default implementations for RSA_public_encrypt,
5114 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5115 always reject numbers >= n.
5118 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5119 to synchronize access to 'locking_thread'. This is necessary on
5120 systems where access to 'locking_thread' (an 'unsigned long'
5121 variable) is not atomic.
5124 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5125 *before* setting the 'crypto_lock_rand' flag. The previous code had
5126 a race condition if 0 is a valid thread ID.
5127 [Travis Vitek <vitek@roguewave.com>]
5129 *) Add support for shared libraries under Irix.
5130 [Albert Chin-A-Young <china@thewrittenword.com>]
5132 *) Add configuration option to build on Linux on both big-endian and
5134 [Ralf Baechle <ralf@uni-koblenz.de>]
5136 *) Add the possibility to create shared libraries on HP-UX.
5139 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5141 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5142 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5143 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5144 PRNG state recovery was possible based on the output of
5145 one PRNG request appropriately sized to gain knowledge on
5146 'md' followed by enough consecutive 1-byte PRNG requests
5147 to traverse all of 'state'.
5149 1. When updating 'md_local' (the current thread's copy of 'md')
5150 during PRNG output generation, hash all of the previous
5151 'md_local' value, not just the half used for PRNG output.
5153 2. Make the number of bytes from 'state' included into the hash
5154 independent from the number of PRNG bytes requested.
5156 The first measure alone would be sufficient to avoid
5157 Markku-Juhani's attack. (Actually it had never occurred
5158 to me that the half of 'md_local' used for chaining was the
5159 half from which PRNG output bytes were taken -- I had always
5160 assumed that the secret half would be used.) The second
5161 measure makes sure that additional data from 'state' is never
5162 mixed into 'md_local' in small portions; this heuristically
5163 further strengthens the PRNG.
5166 *) Fix crypto/bn/asm/mips3.s.
5169 *) When only the key is given to "enc", the IV is undefined. Print out
5170 an error message in this case.
5173 *) Handle special case when X509_NAME is empty in X509 printing routines.
5176 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5177 positive and less than q.
5180 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5181 used: it isn't thread safe and the add_lock_callback should handle
5183 [Paul Rose <Paul.Rose@bridge.com>]
5185 *) Verify that incoming data obeys the block size in
5186 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5190 [Ulf Möller, Bodo Möller]
5192 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5193 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5194 when fixing the server behaviour for backwards-compatible 'client
5195 hello' messages. (Note that the attack is impractical against
5196 SSL 3.0 and TLS 1.0 anyway because length and version checking
5197 means that the probability of guessing a valid ciphertext is
5198 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5201 Before 0.9.5, the countermeasure (hide the error by generating a
5202 random 'decryption result') did not work properly because
5203 ERR_clear_error() was missing, meaning that SSL_get_error() would
5204 detect the supposedly ignored error.
5206 Both problems are now fixed.
5209 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5210 (previously it was 1024).
5213 *) Fix for compatibility mode trust settings: ignore trust settings
5214 unless some valid trust or reject settings are present.
5217 *) Fix for blowfish EVP: its a variable length cipher.
5220 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5221 parameters in DSA public key structures and return an error in the
5222 DSA routines if parameters are absent.
5225 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5226 in the current directory if neither $RANDFILE nor $HOME was set.
5227 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5228 caused some confusion to Windows users who haven't defined $HOME.
5229 Thus RAND_file_name() is changed again: e_os.h can define a
5230 DEFAULT_HOME, which will be used if $HOME is not set.
5231 For Windows, we use "C:"; on other platforms, we still require
5232 environment variables.
5234 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5235 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5236 having multiple threads call RAND_poll() concurrently.
5239 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5240 combination of a flag and a thread ID variable.
5241 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5242 flag), *other* threads can enter ssleay_add_bytes without obeying
5243 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5244 that they do not hold after the first thread unsets add_do_not_lock).
5247 *) Change bctest again: '-x' expressions are not available in all
5251 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5253 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5254 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5256 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5257 the default extension for executables, if any. Also, make the perl
5258 scripts that use symlink() to test if it really exists and use "cp"
5259 if it doesn't. All this made OpenSSL compilable and installable in
5263 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5264 If SEQUENCE is length is indefinite just set c->slen to the total
5265 amount of data available.
5266 [Steve Henson, reported by shige@FreeBSD.org]
5267 [This change does not apply to 0.9.7.]
5269 *) Change bctest to avoid here-documents inside command substitution
5270 (workaround for FreeBSD /bin/sh bug).
5271 For compatibility with Ultrix, avoid shell functions (introduced
5272 in the bctest version that searches along $PATH).
5275 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5276 with des_encrypt() defined on some operating systems, like Solaris
5280 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5281 On the Importance of Eliminating Errors in Cryptographic
5282 Computations, J. Cryptology 14 (2001) 2, 101-119,
5283 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5286 *) MIPS assembler BIGNUM division bug fix.
5289 *) Disabled incorrect Alpha assembler code.
5292 *) Fix PKCS#7 decode routines so they correctly update the length
5293 after reading an EOC for the EXPLICIT tag.
5295 [This change does not apply to 0.9.7.]
5297 *) Fix bug in PKCS#12 key generation routines. This was triggered
5298 if a 3DES key was generated with a 0 initial byte. Include
5299 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5300 (but broken) behaviour.
5303 *) Enhance bctest to search for a working bc along $PATH and print
5305 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5307 *) Fix memory leaks in err.c: free err_data string if necessary;
5308 don't write to the wrong index in ERR_set_error_data.
5311 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5315 *) Replace rdtsc with _emit statements for VC++ version 5.
5316 [Jeremy Cooper <jeremy@baymoo.org>]
5318 *) Make it possible to reuse SSLv2 sessions.
5321 *) In copy_email() check for >= 0 as a return value for
5322 X509_NAME_get_index_by_NID() since 0 is a valid index.
5323 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5325 *) Avoid coredump with unsupported or invalid public keys by checking if
5326 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5327 PKCS7_verify() fails with non detached data.
5330 *) Don't use getenv in library functions when run as setuid/setgid.
5331 New function OPENSSL_issetugid().
5334 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5335 due to incorrect handling of multi-threading:
5337 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5339 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5341 3. Count how many times MemCheck_off() has been called so that
5342 nested use can be treated correctly. This also avoids
5343 inband-signalling in the previous code (which relied on the
5344 assumption that thread ID 0 is impossible).
5347 *) Add "-rand" option also to s_client and s_server.
5350 *) Fix CPU detection on Irix 6.x.
5351 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5352 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5354 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5357 [This change does not apply to 0.9.7.]
5359 *) Use the cached encoding of an X509_NAME structure rather than
5360 copying it. This is apparently the reason for the libsafe "errors"
5361 but the code is actually correct.
5364 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5365 Bleichenbacher's DSA attack.
5366 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5367 to be set and top=0 forces the highest bit to be set; top=-1 is new
5368 and leaves the highest bit random.
5369 [Ulf Moeller, Bodo Moeller]
5371 *) In the NCONF_...-based implementations for CONF_... queries
5372 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5373 a temporary CONF structure with the data component set to NULL
5374 (which gives segmentation faults in lh_retrieve).
5375 Instead, use NULL for the CONF pointer in CONF_get_string and
5376 CONF_get_number (which may use environment variables) and directly
5377 return NULL from CONF_get_section.
5380 *) Fix potential buffer overrun for EBCDIC.
5383 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5384 keyUsage if basicConstraints absent for a CA.
5387 *) Make SMIME_write_PKCS7() write mail header values with a format that
5388 is more generally accepted (no spaces before the semicolon), since
5389 some programs can't parse those values properly otherwise. Also make
5390 sure BIO's that break lines after each write do not create invalid
5394 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5395 macros previously used would not encode an empty SEQUENCE OF
5396 and break the signature.
5398 [This change does not apply to 0.9.7.]
5400 *) Zero the premaster secret after deriving the master secret in
5404 *) Add some EVP_add_digest_alias registrations (as found in
5405 OpenSSL_add_all_digests()) to SSL_library_init()
5406 aka OpenSSL_add_ssl_algorithms(). This provides improved
5407 compatibility with peers using X.509 certificates
5408 with unconventional AlgorithmIdentifier OIDs.
5411 *) Fix for Irix with NO_ASM.
5412 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5414 *) ./config script fixes.
5415 [Ulf Moeller, Richard Levitte]
5417 *) Fix 'openssl passwd -1'.
5420 *) Change PKCS12_key_gen_asc() so it can cope with non null
5421 terminated strings whose length is passed in the passlen
5422 parameter, for example from PEM callbacks. This was done
5423 by adding an extra length parameter to asc2uni().
5424 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5426 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5427 call failed, free the DSA structure.
5430 *) Fix to uni2asc() to cope with zero length Unicode strings.
5431 These are present in some PKCS#12 files.
5434 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5435 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5436 when writing a 32767 byte record.
5437 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5439 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5440 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5442 (RSA objects have a reference count access to which is protected
5443 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5444 so they are meant to be shared between threads.)
5445 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5446 "Reddie, Steven" <Steven.Reddie@ca.com>]
5448 *) Fix a deadlock in CRYPTO_mem_leaks().
5451 *) Use better test patterns in bntest.
5454 *) rand_win.c fix for Borland C.
5457 *) BN_rshift bugfix for n == 0.
5460 *) Add a 'bctest' script that checks for some known 'bc' bugs
5461 so that 'make test' does not abort just because 'bc' is broken.
5464 *) Store verify_result within SSL_SESSION also for client side to
5465 avoid potential security hole. (Re-used sessions on the client side
5466 always resulted in verify_result==X509_V_OK, not using the original
5467 result of the server certificate verification.)
5470 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5471 SSL3_RT_APPLICATION_DATA, return 0.
5472 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5476 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5477 releases, have been re-implemented by renaming the previous
5478 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5479 and ssl3_read_internal, respectively, and adding 'peek' parameters
5480 to them. The new ssl[23]_{read,peek} functions are calls to
5481 ssl[23]_read_internal with the 'peek' flag set appropriately.
5482 A 'peek' parameter has also been added to ssl3_read_bytes, which
5483 does the actual work for ssl3_read_internal.
5486 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5487 the method-specific "init()" handler. Also clean up ex_data after
5488 calling the method-specific "finish()" handler. Previously, this was
5489 happening the other way round.
5492 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5493 The previous value, 12, was not always sufficient for BN_mod_exp().
5496 *) Make sure that shared libraries get the internal name engine with
5497 the full version number and not just 0. This should mark the
5498 shared libraries as not backward compatible. Of course, this should
5499 be changed again when we can guarantee backward binary compatibility.
5502 *) Fix typo in get_cert_by_subject() in by_dir.c
5503 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5505 *) Rework the system to generate shared libraries:
5507 - Make note of the expected extension for the shared libraries and
5508 if there is a need for symbolic links from for example libcrypto.so.0
5509 to libcrypto.so.0.9.7. There is extended info in Configure for
5512 - Make as few rebuilds of the shared libraries as possible.
5514 - Still avoid linking the OpenSSL programs with the shared libraries.
5516 - When installing, install the shared libraries separately from the
5520 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5522 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5523 and not in SSL_clear because the latter is also used by the
5524 accept/connect functions; previously, the settings made by
5525 SSL_set_read_ahead would be lost during the handshake.
5526 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5528 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5529 Previously, it would create entries for disableed algorithms no
5533 *) Added several new manual pages for SSL_* function.
5536 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5538 *) In ssl23_get_client_hello, generate an error message when faced
5539 with an initial SSL 3.0/TLS record that is too small to contain the
5540 first two bytes of the ClientHello message, i.e. client_version.
5541 (Note that this is a pathologic case that probably has never happened
5542 in real life.) The previous approach was to use the version number
5543 from the record header as a substitute; but our protocol choice
5544 should not depend on that one because it is not authenticated
5545 by the Finished messages.
5548 *) More robust randomness gathering functions for Windows.
5549 [Jeffrey Altman <jaltman@columbia.edu>]
5551 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5552 not set then we don't setup the error code for issuer check errors
5553 to avoid possibly overwriting other errors which the callback does
5554 handle. If an application does set the flag then we assume it knows
5555 what it is doing and can handle the new informational codes
5559 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5560 a general "ANY" type, as such it should be able to decode anything
5561 including tagged types. However it didn't check the class so it would
5562 wrongly interpret tagged types in the same way as their universal
5563 counterpart and unknown types were just rejected. Changed so that the
5564 tagged and unknown types are handled in the same way as a SEQUENCE:
5565 that is the encoding is stored intact. There is also a new type
5566 "V_ASN1_OTHER" which is used when the class is not universal, in this
5567 case we have no idea what the actual type is so we just lump them all
5571 *) On VMS, stdout may very well lead to a file that is written to
5572 in a record-oriented fashion. That means that every write() will
5573 write a separate record, which will be read separately by the
5574 programs trying to read from it. This can be very confusing.
5576 The solution is to put a BIO filter in the way that will buffer
5577 text until a linefeed is reached, and then write everything a
5578 line at a time, so every record written will be an actual line,
5579 not chunks of lines and not (usually doesn't happen, but I've
5580 seen it once) several lines in one record. BIO_f_linebuffer() is
5583 Currently, it's a VMS-only method, because that's where it has
5584 been tested well enough.
5587 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5588 it can return incorrect results.
5589 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5590 but it was in 0.9.6-beta[12].)
5593 *) Disable the check for content being present when verifying detached
5594 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5595 include zero length content when signing messages.
5598 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5599 BIO_ctrl (for BIO pairs).
5602 *) Add DSO method for VMS.
5605 *) Bug fix: Montgomery multiplication could produce results with the
5609 *) Add RPM specification openssl.spec and modify it to build three
5610 packages. The default package contains applications, application
5611 documentation and run-time libraries. The devel package contains
5612 include files, static libraries and function documentation. The
5613 doc package contains the contents of the doc directory. The original
5614 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5617 *) Add a large number of documentation files for many SSL routines.
5618 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5620 *) Add a configuration entry for Sony News 4.
5621 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5623 *) Don't set the two most significant bits to one when generating a
5624 random number < q in the DSA library.
5627 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5628 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5629 the underlying transport is blocking) if a handshake took place.
5630 (The default behaviour is needed by applications such as s_client
5631 and s_server that use select() to determine when to use SSL_read;
5632 but for applications that know in advance when to expect data, it
5633 just makes things more complicated.)
5636 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5640 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5641 work better on such systems.
5642 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5644 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5645 Update PKCS12_parse() so it copies the friendlyName and the
5646 keyid to the certificates aux info.
5649 *) Fix bug in PKCS7_verify() which caused an infinite loop
5650 if there was more than one signature.
5651 [Sven Uszpelkat <su@celocom.de>]
5653 *) Major change in util/mkdef.pl to include extra information
5654 about each symbol, as well as presentig variables as well
5655 as functions. This change means that there's n more need
5656 to rebuild the .num files when some algorithms are excluded.
5659 *) Allow the verify time to be set by an application,
5660 rather than always using the current time.
5663 *) Phase 2 verify code reorganisation. The certificate
5664 verify code now looks up an issuer certificate by a
5665 number of criteria: subject name, authority key id
5666 and key usage. It also verifies self signed certificates
5667 by the same criteria. The main comparison function is
5668 X509_check_issued() which performs these checks.
5670 Lot of changes were necessary in order to support this
5671 without completely rewriting the lookup code.
5673 Authority and subject key identifier are now cached.
5675 The LHASH 'certs' is X509_STORE has now been replaced
5676 by a STACK_OF(X509_OBJECT). This is mainly because an
5677 LHASH can't store or retrieve multiple objects with
5678 the same hash value.
5680 As a result various functions (which were all internal
5681 use only) have changed to handle the new X509_STORE
5682 structure. This will break anything that messed round
5683 with X509_STORE internally.
5685 The functions X509_STORE_add_cert() now checks for an
5686 exact match, rather than just subject name.
5688 The X509_STORE API doesn't directly support the retrieval
5689 of multiple certificates matching a given criteria, however
5690 this can be worked round by performing a lookup first
5691 (which will fill the cache with candidate certificates)
5692 and then examining the cache for matches. This is probably
5693 the best we can do without throwing out X509_LOOKUP
5694 entirely (maybe later...).
5696 The X509_VERIFY_CTX structure has been enhanced considerably.
5698 All certificate lookup operations now go via a get_issuer()
5699 callback. Although this currently uses an X509_STORE it
5700 can be replaced by custom lookups. This is a simple way
5701 to bypass the X509_STORE hackery necessary to make this
5702 work and makes it possible to use more efficient techniques
5703 in future. A very simple version which uses a simple
5704 STACK for its trusted certificate store is also provided
5705 using X509_STORE_CTX_trusted_stack().
5707 The verify_cb() and verify() callbacks now have equivalents
5708 in the X509_STORE_CTX structure.
5710 X509_STORE_CTX also has a 'flags' field which can be used
5711 to customise the verify behaviour.
5714 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5715 excludes S/MIME capabilities.
5718 *) When a certificate request is read in keep a copy of the
5719 original encoding of the signed data and use it when outputing
5720 again. Signatures then use the original encoding rather than
5721 a decoded, encoded version which may cause problems if the
5722 request is improperly encoded.
5725 *) For consistency with other BIO_puts implementations, call
5726 buffer_write(b, ...) directly in buffer_puts instead of calling
5729 In BIO_puts, increment b->num_write as in BIO_write.
5730 [Peter.Sylvester@EdelWeb.fr]
5732 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5733 BN_zero, we may not return a BIGNUM with an array consisting of
5737 *) Avoid calling abort() from within the library when problems are
5738 detected, except if preprocessor symbols have been defined
5739 (such as REF_CHECK, BN_DEBUG etc.).
5742 *) New openssl application 'rsautl'. This utility can be
5743 used for low level RSA operations. DER public key
5744 BIO/fp routines also added.
5747 *) New Configure entry and patches for compiling on QNX 4.
5748 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5750 *) A demo state-machine implementation was sponsored by
5751 Nuron (http://www.nuron.com/) and is now available in
5752 demos/state_machine.
5755 *) New options added to the 'dgst' utility for signature
5756 generation and verification.
5759 *) Unrecognized PKCS#7 content types are now handled via a
5760 catch all ASN1_TYPE structure. This allows unsupported
5761 types to be stored as a "blob" and an application can
5762 encode and decode it manually.
5765 *) Fix various signed/unsigned issues to make a_strex.c
5767 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5769 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5770 length if passed a buffer. ASN1_INTEGER_to_BN failed
5771 if passed a NULL BN and its argument was negative.
5772 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5774 *) Modification to PKCS#7 encoding routines to output definite
5775 length encoding. Since currently the whole structures are in
5776 memory there's not real point in using indefinite length
5777 constructed encoding. However if OpenSSL is compiled with
5778 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5781 *) Added BIO_vprintf() and BIO_vsnprintf().
5784 *) Added more prefixes to parse for in the the strings written
5785 through a logging bio, to cover all the levels that are available
5786 through syslog. The prefixes are now:
5788 PANIC, EMERG, EMR => LOG_EMERG
5789 ALERT, ALR => LOG_ALERT
5790 CRIT, CRI => LOG_CRIT
5791 ERROR, ERR => LOG_ERR
5792 WARNING, WARN, WAR => LOG_WARNING
5793 NOTICE, NOTE, NOT => LOG_NOTICE
5794 INFO, INF => LOG_INFO
5795 DEBUG, DBG => LOG_DEBUG
5797 and as before, if none of those prefixes are present at the
5798 beginning of the string, LOG_ERR is chosen.
5800 On Win32, the LOG_* levels are mapped according to this:
5802 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5803 LOG_WARNING => EVENTLOG_WARNING_TYPE
5804 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5808 *) Made it possible to reconfigure with just the configuration
5809 argument "reconf" or "reconfigure". The command line arguments
5810 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5811 and are retrieved from there when reconfiguring.
5815 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5817 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5820 *) The obj_dat.pl script was messing up the sorting of object
5821 names. The reason was that it compared the quoted version
5822 of strings as a result "OCSP" > "OCSP Signing" because
5823 " > SPACE. Changed script to store unquoted versions of
5824 names and add quotes on output. It was also omitting some
5825 names from the lookup table if they were given a default
5826 value (that is if SN is missing it is given the same
5827 value as LN and vice versa), these are now added on the
5828 grounds that if an object has a name we should be able to
5829 look it up. Finally added warning output when duplicate
5830 short or long names are found.
5833 *) Changes needed for Tandem NSK.
5834 [Scott Uroff <scott@xypro.com>]
5836 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5837 RSA_padding_check_SSLv23(), special padding was never detected
5838 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5839 version rollback attacks was not effective.
5841 In s23_clnt.c, don't use special rollback-attack detection padding
5842 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5843 client; similarly, in s23_srvr.c, don't do the rollback check if
5844 SSL 2.0 is the only protocol enabled in the server.
5847 *) Make it possible to get hexdumps of unprintable data with 'openssl
5848 asn1parse'. By implication, the functions ASN1_parse_dump() and
5849 BIO_dump_indent() are added.
5852 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5853 these print out strings and name structures based on various
5854 flags including RFC2253 support and proper handling of
5855 multibyte characters. Added options to the 'x509' utility
5856 to allow the various flags to be set.
5859 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5860 Also change the functions X509_cmp_current_time() and
5861 X509_gmtime_adj() work with an ASN1_TIME structure,
5862 this will enable certificates using GeneralizedTime in validity
5863 dates to be checked.
5866 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5867 negative public key encodings) on by default,
5868 NO_NEG_PUBKEY_BUG can be set to disable it.
5871 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5872 content octets. An i2c_ASN1_OBJECT is unnecessary because
5873 the encoding can be trivially obtained from the structure.
5876 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5877 not read locks (CRYPTO_r_[un]lock).
5880 *) A first attempt at creating official support for shared
5881 libraries through configuration. I've kept it so the
5882 default is static libraries only, and the OpenSSL programs
5883 are always statically linked for now, but there are
5884 preparations for dynamic linking in place.
5885 This has been tested on Linux and Tru64.
5888 *) Randomness polling function for Win9x, as described in:
5889 Peter Gutmann, Software Generation of Practically Strong
5893 *) Fix so PRNG is seeded in req if using an already existing
5897 *) New options to smime application. -inform and -outform
5898 allow alternative formats for the S/MIME message including
5899 PEM and DER. The -content option allows the content to be
5900 specified separately. This should allow things like Netscape
5901 form signing output easier to verify.
5904 *) Fix the ASN1 encoding of tags using the 'long form'.
5907 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5908 STRING types. These convert content octets to and from the
5909 underlying type. The actual tag and length octets are
5910 already assumed to have been read in and checked. These
5911 are needed because all other string types have virtually
5912 identical handling apart from the tag. By having versions
5913 of the ASN1 functions that just operate on content octets
5914 IMPLICIT tagging can be handled properly. It also allows
5915 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5916 and ASN1_INTEGER are identical apart from the tag.
5919 *) Change the handling of OID objects as follows:
5921 - New object identifiers are inserted in objects.txt, following
5922 the syntax given in objects.README.
5923 - objects.pl is used to process obj_mac.num and create a new
5925 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5928 This is currently kind of a hack, and the perl code in objects.pl
5929 isn't very elegant, but it works as I intended. The simplest way
5930 to check that it worked correctly is to look in obj_dat.h and
5931 check the array nid_objs and make sure the objects haven't moved
5932 around (this is important!). Additions are OK, as well as
5933 consistent name changes.
5936 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5939 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5940 The given file adds to whatever has already been seeded into the
5941 random pool through the RANDFILE configuration file option or
5942 environment variable, or the default random state file.
5945 *) mkstack.pl now sorts each macro group into lexical order.
5946 Previously the output order depended on the order the files
5947 appeared in the directory, resulting in needless rewriting
5951 *) Patches to make OpenSSL compile under Win32 again. Mostly
5952 work arounds for the VC++ problem that it treats func() as
5953 func(void). Also stripped out the parts of mkdef.pl that
5954 added extra typesafe functions: these no longer exist.
5957 *) Reorganisation of the stack code. The macros are now all
5958 collected in safestack.h . Each macro is defined in terms of
5959 a "stack macro" of the form SKM_<name>(type, a, b). The
5960 DEBUG_SAFESTACK is now handled in terms of function casts,
5961 this has the advantage of retaining type safety without the
5962 use of additional functions. If DEBUG_SAFESTACK is not defined
5963 then the non typesafe macros are used instead. Also modified the
5964 mkstack.pl script to handle the new form. Needs testing to see
5965 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5966 the default if no major problems. Similar behaviour for ASN1_SET_OF
5967 and PKCS12_STACK_OF.
5970 *) When some versions of IIS use the 'NET' form of private key the
5971 key derivation algorithm is different. Normally MD5(password) is
5972 used as a 128 bit RC4 key. In the modified case
5973 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5974 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5975 as the old Netscape_RSA functions except they have an additional
5976 'sgckey' parameter which uses the modified algorithm. Also added
5977 an -sgckey command line option to the rsa utility. Thanks to
5978 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5979 algorithm to openssl-dev.
5982 *) The evp_local.h macros were using 'c.##kname' which resulted in
5983 invalid expansion on some systems (SCO 5.0.5 for example).
5984 Corrected to 'c.kname'.
5985 [Phillip Porch <root@theporch.com>]
5987 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5988 a STACK of email addresses from a certificate or request, these look
5989 in the subject name and the subject alternative name extensions and
5990 omit any duplicate addresses.
5993 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5994 This makes DSA verification about 2 % faster.
5997 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5998 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5999 plus overhead for 1024 bit moduli).
6000 This makes exponentiations about 0.5 % faster for 1024 bit
6001 exponents (as measured by "openssl speed rsa2048").
6004 *) Rename memory handling macros to avoid conflicts with other
6006 Malloc => OPENSSL_malloc
6007 Malloc_locked => OPENSSL_malloc_locked
6008 Realloc => OPENSSL_realloc
6009 Free => OPENSSL_free
6012 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6013 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6016 *) CygWin32 support.
6017 [John Jarvie <jjarvie@newsguy.com>]
6019 *) The type-safe stack code has been rejigged. It is now only compiled
6020 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6021 by default all type-specific stack functions are "#define"d back to
6022 standard stack functions. This results in more streamlined output
6023 but retains the type-safety checking possibilities of the original
6027 *) The STACK code has been cleaned up, and certain type declarations
6028 that didn't make a lot of sense have been brought in line. This has
6029 also involved a cleanup of sorts in safestack.h to more correctly
6030 map type-safe stack functions onto their plain stack counterparts.
6031 This work has also resulted in a variety of "const"ifications of
6032 lots of the code, especially "_cmp" operations which should normally
6033 be prototyped with "const" parameters anyway.
6036 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6037 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6038 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6039 where all of 'md' is used each time the PRNG is used, but 'state'
6040 is used only indexed by a cyclic counter. As entropy may not be
6041 well distributed from the beginning, 'md' is important as a
6042 chaining variable. However, the output function chains only half
6043 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6044 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6045 in all of 'state' being rewritten, with the new values depending
6046 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6049 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6050 the handshake is continued after ssl_verify_cert_chain();
6051 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6052 can lead to 'unexplainable' connection aborts later.
6053 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6055 *) Major EVP API cipher revision.
6056 Add hooks for extra EVP features. This allows various cipher
6057 parameters to be set in the EVP interface. Support added for variable
6058 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6059 setting of RC2 and RC5 parameters.
6061 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6064 Remove lots of duplicated code from the EVP library. For example *every*
6065 cipher init() function handles the 'iv' in the same way according to the
6066 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6067 for CFB and OFB modes they zero ctx->num.
6069 New functionality allows removal of S/MIME code RC2 hack.
6071 Most of the routines have the same form and so can be declared in terms
6074 By shifting this to the top level EVP_CipherInit() it can be removed from
6075 all individual ciphers. If the cipher wants to handle IVs or keys
6076 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6079 Change lots of functions like EVP_EncryptUpdate() to now return a
6080 value: although software versions of the algorithms cannot fail
6081 any installed hardware versions can.
6084 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6085 this option is set, tolerate broken clients that send the negotiated
6086 protocol version number instead of the requested protocol version
6090 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6091 i.e. non-zero for export ciphersuites, zero otherwise.
6092 Previous versions had this flag inverted, inconsistent with
6093 rsa_tmp_cb (..._TMP_RSA_CB).
6094 [Bodo Moeller; problem reported by Amit Chopra]
6096 *) Add missing DSA library text string. Work around for some IIS
6097 key files with invalid SEQUENCE encoding.
6100 *) Add a document (doc/standards.txt) that list all kinds of standards
6101 and so on that are implemented in OpenSSL.
6104 *) Enhance c_rehash script. Old version would mishandle certificates
6105 with the same subject name hash and wouldn't handle CRLs at all.
6106 Added -fingerprint option to crl utility, to support new c_rehash
6110 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6113 *) Fix for SSL server purpose checking. Server checking was
6114 rejecting certificates which had extended key usage present
6115 but no ssl client purpose.
6116 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6118 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6119 is a little unclear about how a blank password is handled.
6120 Since the password in encoded as a BMPString with terminating
6121 double NULL a zero length password would end up as just the
6122 double NULL. However no password at all is different and is
6123 handled differently in the PKCS#12 key generation code. NS
6124 treats a blank password as zero length. MSIE treats it as no
6125 password on export: but it will try both on import. We now do
6126 the same: PKCS12_parse() tries zero length and no password if
6127 the password is set to "" or NULL (NULL is now a valid password:
6128 it wasn't before) as does the pkcs12 application.
6131 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6132 perror when PEM_read_bio_X509_REQ fails, the error message must
6133 be obtained from the error queue.
6136 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6137 it in ERR_remove_state if appropriate, and change ERR_get_state
6138 accordingly to avoid race conditions (this is necessary because
6139 thread_hash is no longer constant once set).
6142 *) Bugfix for linux-elf makefile.one.
6145 *) RSA_get_default_method() will now cause a default
6146 RSA_METHOD to be chosen if one doesn't exist already.
6147 Previously this was only set during a call to RSA_new()
6148 or RSA_new_method(NULL) meaning it was possible for
6149 RSA_get_default_method() to return NULL.
6152 *) Added native name translation to the existing DSO code
6153 that will convert (if the flag to do so is set) filenames
6154 that are sufficiently small and have no path information
6155 into a canonical native form. Eg. "blah" converted to
6156 "libblah.so" or "blah.dll" etc.
6159 *) New function ERR_error_string_n(e, buf, len) which is like
6160 ERR_error_string(e, buf), but writes at most 'len' bytes
6161 including the 0 terminator. For ERR_error_string_n, 'buf'
6163 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6165 *) CONF library reworked to become more general. A new CONF
6166 configuration file reader "class" is implemented as well as a
6167 new functions (NCONF_*, for "New CONF") to handle it. The now
6168 old CONF_* functions are still there, but are reimplemented to
6169 work in terms of the new functions. Also, a set of functions
6170 to handle the internal storage of the configuration data is
6171 provided to make it easier to write new configuration file
6172 reader "classes" (I can definitely see something reading a
6173 configuration file in XML format, for example), called _CONF_*,
6174 or "the configuration storage API"...
6176 The new configuration file reading functions are:
6178 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6179 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6181 NCONF_default, NCONF_WIN32
6183 NCONF_dump_fp, NCONF_dump_bio
6185 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6186 NCONF_new creates a new CONF object. This works in the same way
6187 as other interfaces in OpenSSL, like the BIO interface.
6188 NCONF_dump_* dump the internal storage of the configuration file,
6189 which is useful for debugging. All other functions take the same
6190 arguments as the old CONF_* functions wth the exception of the
6191 first that must be a `CONF *' instead of a `LHASH *'.
6193 To make it easer to use the new classes with the old CONF_* functions,
6194 the function CONF_set_default_method is provided.
6197 *) Add '-tls1' option to 'openssl ciphers', which was already
6198 mentioned in the documentation but had not been implemented.
6199 (This option is not yet really useful because even the additional
6200 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6203 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6204 OpenSSL-based applications) load shared libraries and bind to
6205 them in a portable way.
6206 [Geoff Thorpe, with contributions from Richard Levitte]
6208 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6210 *) Make sure _lrotl and _lrotr are only used with MSVC.
6212 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6213 (the default implementation of RAND_status).
6215 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6216 to '-clrext' (= clear extensions), as intended and documented.
6217 [Bodo Moeller; inconsistency pointed out by Michael Attili
6220 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6221 was larger than the MD block size.
6222 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6224 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6225 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6226 using the passed key: if the passed key was a private key the result
6227 of X509_print(), for example, would be to print out all the private key
6231 *) des_quad_cksum() byte order bug fix.
6232 [Ulf Möller, using the problem description in krb4-0.9.7, where
6233 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6235 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6237 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6239 *) For easily testing in shell scripts whether some command
6240 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6241 returns with exit code 0 iff no command of the given name is available.
6242 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6243 the output goes to stdout and nothing is printed to stderr.
6244 Additional arguments are always ignored.
6246 Since for each cipher there is a command of the same name,
6247 the 'no-cipher' compilation switches can be tested this way.
6249 ('openssl no-XXX' is not able to detect pseudo-commands such
6250 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6253 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6256 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6257 is set; it will be thrown away anyway because each handshake creates
6259 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6260 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6261 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6262 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6265 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6266 'Q' and 'R' lose their special meanings (quit/renegotiate).
6267 This is part of what -quiet does; unlike -quiet, -ign_eof
6268 does not suppress any output.
6271 *) Add compatibility options to the purpose and trust code. The
6272 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6273 accepts a certificate or CA, this was the previous behaviour,
6274 with all the associated security issues.
6276 X509_TRUST_COMPAT is the old trust behaviour: only and
6277 automatically trust self signed roots in certificate store. A
6278 new trust setting X509_TRUST_DEFAULT is used to specify that
6279 a purpose has no associated trust setting and it should instead
6280 use the value in the default purpose.
6283 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6284 and fix a memory leak.
6287 *) In util/mkerr.pl (which implements 'make errors'), preserve
6288 reason strings from the previous version of the .c file, as
6289 the default to have only downcase letters (and digits) in
6290 automatically generated reasons codes is not always appropriate.
6293 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6294 using strerror. Previously, ERR_reason_error_string() returned
6295 library names as reason strings for SYSerr; but SYSerr is a special
6296 case where small numbers are errno values, not library numbers.
6299 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6300 converts DSA parameters into DH parameters. (When creating parameters,
6301 DSA_generate_parameters is used.)
6304 *) Include 'length' (recommended exponent length) in C code generated
6305 by 'openssl dhparam -C'.
6308 *) The second argument to set_label in perlasm was already being used
6309 so couldn't be used as a "file scope" flag. Moved to third argument
6313 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6314 instead of RAND_bytes for encryption IVs and salts.
6317 *) Include RAND_status() into RAND_METHOD instead of implementing
6318 it only for md_rand.c Otherwise replacing the PRNG by calling
6319 RAND_set_rand_method would be impossible.
6322 *) Don't let DSA_generate_key() enter an infinite loop if the random
6323 number generation fails.
6326 *) New 'rand' application for creating pseudo-random output.
6329 *) Added configuration support for Linux/IA64
6330 [Rolf Haberrecker <rolf@suse.de>]
6332 *) Assembler module support for Mingw32.
6335 *) Shared library support for HPUX (in shlib/).
6336 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6338 *) Shared library support for Solaris gcc.
6339 [Lutz Behnke <behnke@trustcenter.de>]
6341 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6343 *) PKCS7_encrypt() was adding text MIME headers twice because they
6344 were added manually and by SMIME_crlf_copy().
6347 *) In bntest.c don't call BN_rand with zero bits argument.
6348 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6350 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6351 case was implemented. This caused BN_div_recp() to fail occasionally.
6354 *) Add an optional second argument to the set_label() in the perl
6355 assembly language builder. If this argument exists and is set
6356 to 1 it signals that the assembler should use a symbol whose
6357 scope is the entire file, not just the current function. This
6358 is needed with MASM which uses the format label:: for this scope.
6359 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6361 *) Change the ASN1 types so they are typedefs by default. Before
6362 almost all types were #define'd to ASN1_STRING which was causing
6363 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6367 *) Change names of new functions to the new get1/get0 naming
6368 convention: After 'get1', the caller owns a reference count
6369 and has to call ..._free; 'get0' returns a pointer to some
6370 data structure without incrementing reference counters.
6371 (Some of the existing 'get' functions increment a reference
6372 counter, some don't.)
6373 Similarly, 'set1' and 'add1' functions increase reference
6374 counters or duplicate objects.
6377 *) Allow for the possibility of temp RSA key generation failure:
6378 the code used to assume it always worked and crashed on failure.
6381 *) Fix potential buffer overrun problem in BIO_printf().
6382 [Ulf Möller, using public domain code by Patrick Powell; problem
6383 pointed out by David Sacerdote <das33@cornell.edu>]
6385 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6386 RAND_egd() and RAND_status(). In the command line application,
6387 the EGD socket can be specified like a seed file using RANDFILE
6391 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6392 Some CAs (e.g. Verisign) distribute certificates in this form.
6395 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6396 list to exclude them. This means that no special compilation option
6397 is needed to use anonymous DH: it just needs to be included in the
6401 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6402 EVP_MD_type. The old functionality is available in a new macro called
6403 EVP_MD_md(). Change code that uses it and update docs.
6406 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6407 where the 'void *' argument is replaced by a function pointer argument.
6408 Previously 'void *' was abused to point to functions, which works on
6409 many platforms, but is not correct. As these functions are usually
6410 called by macros defined in OpenSSL header files, most source code
6411 should work without changes.
6414 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6415 sections with information on -D... compiler switches used for
6416 compiling the library so that applications can see them. To enable
6417 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6418 must be defined. E.g.,
6419 #define OPENSSL_ALGORITHM_DEFINES
6420 #include <openssl/opensslconf.h>
6421 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6422 [Richard Levitte, Ulf and Bodo Möller]
6424 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6428 *) Change the 'other' type in certificate aux info to a STACK_OF
6429 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6430 the required ASN1 format: arbitrary types determined by an OID.
6433 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6434 argument to 'req'. This is not because the function is newer or
6435 better than others it just uses the work 'NEW' in the certificate
6436 request header lines. Some software needs this.
6439 *) Reorganise password command line arguments: now passwords can be
6440 obtained from various sources. Delete the PEM_cb function and make
6441 it the default behaviour: i.e. if the callback is NULL and the
6442 usrdata argument is not NULL interpret it as a null terminated pass
6443 phrase. If usrdata and the callback are NULL then the pass phrase
6444 is prompted for as usual.
6447 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6448 the support is automatically enabled. The resulting binaries will
6449 autodetect the card and use it if present.
6450 [Ben Laurie and Compaq Inc.]
6452 *) Work around for Netscape hang bug. This sends certificate request
6453 and server done in one record. Since this is perfectly legal in the
6454 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6455 the bugs/SSLv3 entry for more info.
6458 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6461 *) Add -rand argument to smime and pkcs12 applications and read/write
6465 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6468 *) Add command line password options to the remaining applications.
6471 *) Bug fix for BN_div_recp() for numerators with an even number of
6475 *) More tests in bntest.c, and changed test_bn output.
6478 *) ./config recognizes MacOS X now.
6481 *) Bug fix for BN_div() when the first words of num and divsor are
6482 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6485 *) Add support for various broken PKCS#8 formats, and command line
6486 options to produce them.
6489 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6490 get temporary BIGNUMs from a BN_CTX.
6493 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6497 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6498 include a #define from the old name to the new. The original intent
6499 was that statically linked binaries could for example just call
6500 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6501 link with digests. This never worked becayse SSLeay_add_all_digests()
6502 and SSLeay_add_all_ciphers() were in the same source file so calling
6503 one would link with the other. They are now in separate source files.
6506 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6509 *) Use a less unusual form of the Miller-Rabin primality test (it used
6510 a binary algorithm for exponentiation integrated into the Miller-Rabin
6511 loop, our standard modexp algorithms are faster).
6514 *) Support for the EBCDIC character set completed.
6515 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6517 *) Source code cleanups: use const where appropriate, eliminate casts,
6518 use void * instead of char * in lhash.
6521 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6522 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6523 this the server could overwrite ephemeral keys that the client
6527 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6528 using 50 iterations of the Rabin-Miller test.
6530 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6531 iterations of the Rabin-Miller test as required by the appendix
6532 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6533 As BN_is_prime_fasttest includes trial division, DSA parameter
6534 generation becomes much faster.
6536 This implies a change for the callback functions in DSA_is_prime
6537 and DSA_generate_parameters: The callback function is called once
6538 for each positive witness in the Rabin-Miller test, not just
6539 occasionally in the inner loop; and the parameters to the
6540 callback function now provide an iteration count for the outer
6541 loop rather than for the current invocation of the inner loop.
6542 DSA_generate_parameters additionally can call the callback
6543 function with an 'iteration count' of -1, meaning that a
6544 candidate has passed the trial division test (when q is generated
6545 from an application-provided seed, trial division is skipped).
6548 *) New function BN_is_prime_fasttest that optionally does trial
6549 division before starting the Rabin-Miller test and has
6550 an additional BN_CTX * argument (whereas BN_is_prime always
6551 has to allocate at least one BN_CTX).
6552 'callback(1, -1, cb_arg)' is called when a number has passed the
6553 trial division stage.
6556 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6560 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6563 *) New function BN_pseudo_rand().
6566 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6567 bignum version of BN_from_montgomery() with the working code from
6568 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6572 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6573 made it impossible to use the same SSL_SESSION data structure in
6574 SSL2 clients in multiple threads.
6577 *) The return value of RAND_load_file() no longer counts bytes obtained
6578 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6579 to seed the PRNG (previously an explicit byte count was required).
6580 [Ulf Möller, Bodo Möller]
6582 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6583 used (char *) instead of (void *) and had casts all over the place.
6586 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6589 *) Retain source code compatibility for BN_prime_checks macro:
6590 BN_is_prime(..., BN_prime_checks, ...) now uses
6591 BN_prime_checks_for_size to determine the appropriate number of
6592 Rabin-Miller iterations.
6595 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6596 DH_CHECK_P_NOT_SAFE_PRIME.
6597 (Check if this is true? OpenPGP calls them "strong".)
6600 *) Merge the functionality of "dh" and "gendh" programs into a new program
6601 "dhparam". The old programs are retained for now but will handle DH keys
6602 (instead of parameters) in future.
6605 *) Make the ciphers, s_server and s_client programs check the return values
6606 when a new cipher list is set.
6609 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6610 ciphers. Before when the 56bit ciphers were enabled the sorting was
6613 The syntax for the cipher sorting has been extended to support sorting by
6614 cipher-strength (using the strength_bits hard coded in the tables).
6615 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6617 Fix a bug in the cipher-command parser: when supplying a cipher command
6618 string with an "undefined" symbol (neither command nor alphanumeric
6619 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6620 an error is flagged.
6622 Due to the strength-sorting extension, the code of the
6623 ssl_create_cipher_list() function was completely rearranged. I hope that
6624 the readability was also increased :-)
6625 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6627 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6628 for the first serial number and places 2 in the serial number file. This
6629 avoids problems when the root CA is created with serial number zero and
6630 the first user certificate has the same issuer name and serial number
6634 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6635 the new code. Add documentation for this stuff.
6638 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6639 X509_*() to X509at_*() on the grounds that they don't handle X509
6640 structures and behave in an analagous way to the X509v3 functions:
6641 they shouldn't be called directly but wrapper functions should be used
6644 So we also now have some wrapper functions that call the X509at functions
6645 when passed certificate requests. (TO DO: similar things can be done with
6646 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6647 things. Some of these need some d2i or i2d and print functionality
6648 because they handle more complex structures.)
6651 *) Add missing #ifndefs that caused missing symbols when building libssl
6652 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6653 NO_RSA in ssl/s2*.c.
6654 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6656 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6657 has a return value which indicates the quality of the random data
6658 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6659 error queue. New function RAND_pseudo_bytes() generates output that is
6660 guaranteed to be unique but not unpredictable. RAND_add is like
6661 RAND_seed, but takes an extra argument for an entropy estimate
6662 (RAND_seed always assumes full entropy).
6665 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6666 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6667 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6668 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6669 false-positive rate of at most 2^-80 for random input.
6672 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6675 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6676 in the 0.9.5 release), this returns the chain
6677 from an X509_CTX structure with a dup of the stack and all
6678 the X509 reference counts upped: so the stack will exist
6679 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6682 Also make SSL_SESSION_print() print out the verify return
6686 *) Add manpage for the pkcs12 command. Also change the default
6687 behaviour so MAC iteration counts are used unless the new
6688 -nomaciter option is used. This improves file security and
6689 only older versions of MSIE (4.0 for example) need it.
6692 *) Honor the no-xxx Configure options when creating .DEF files.
6695 *) Add PKCS#10 attributes to field table: challengePassword,
6696 unstructuredName and unstructuredAddress. These are taken from
6697 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6698 international characters are used.
6700 More changes to X509_ATTRIBUTE code: allow the setting of types
6701 based on strings. Remove the 'loc' parameter when adding
6702 attributes because these will be a SET OF encoding which is sorted
6706 *) Initial changes to the 'req' utility to allow request generation
6707 automation. This will allow an application to just generate a template
6708 file containing all the field values and have req construct the
6711 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6712 used all over the place including certificate requests and PKCS#7
6713 structures. They are currently handled manually where necessary with
6714 some primitive wrappers for PKCS#7. The new functions behave in a
6715 manner analogous to the X509 extension functions: they allow
6716 attributes to be looked up by NID and added.
6718 Later something similar to the X509V3 code would be desirable to
6719 automatically handle the encoding, decoding and printing of the
6720 more complex types. The string types like challengePassword can
6721 be handled by the string table functions.
6723 Also modified the multi byte string table handling. Now there is
6724 a 'global mask' which masks out certain types. The table itself
6725 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6726 is useful when for example there is only one permissible type
6727 (as in countryName) and using the mask might result in no valid
6731 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6732 SSL_get_peer_finished to allow applications to obtain the latest
6733 Finished messages sent to the peer or expected from the peer,
6734 respectively. (SSL_get_peer_finished is usually the Finished message
6735 actually received from the peer, otherwise the protocol will be aborted.)
6737 As the Finished message are message digests of the complete handshake
6738 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6739 be used for external authentication procedures when the authentication
6740 provided by SSL/TLS is not desired or is not enough.
6743 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6744 the host supports BWX extension and if Compaq C is present on the
6745 $PATH. Just exploiting of the BWX extension results in 20-30%
6746 performance kick for some algorithms, e.g. DES and RC4 to mention
6747 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6751 *) Add support for MS "fast SGC". This is arguably a violation of the
6752 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6753 weak crypto and after checking the certificate is SGC a second one
6754 with strong crypto. MS SGC stops the first handshake after receiving
6755 the server certificate message and sends a second client hello. Since
6756 a server will typically do all the time consuming operations before
6757 expecting any further messages from the client (server key exchange
6758 is the most expensive) there is little difference between the two.
6760 To get OpenSSL to support MS SGC we have to permit a second client
6761 hello message after we have sent server done. In addition we have to
6762 reset the MAC if we do get this second client hello.
6765 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6766 if a DER encoded private key is RSA or DSA traditional format. Changed
6767 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6768 format DER encoded private key. Newer code should use PKCS#8 format which
6769 has the key type encoded in the ASN1 structure. Added DER private key
6770 support to pkcs8 application.
6773 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6774 ciphersuites has been selected (as required by the SSL 3/TLS 1
6775 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6776 is set, we interpret this as a request to violate the specification
6777 (the worst that can happen is a handshake failure, and 'correct'
6778 behaviour would result in a handshake failure anyway).
6781 *) In SSL_CTX_add_session, take into account that there might be multiple
6782 SSL_SESSION structures with the same session ID (e.g. when two threads
6783 concurrently obtain them from an external cache).
6784 The internal cache can handle only one SSL_SESSION with a given ID,
6785 so if there's a conflict, we now throw out the old one to achieve
6789 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6790 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6791 some routines that use cipher OIDs: some ciphers do not have OIDs
6792 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6796 *) Simplify the trust setting structure and code. Now we just have
6797 two sequences of OIDs for trusted and rejected settings. These will
6798 typically have values the same as the extended key usage extension
6799 and any application specific purposes.
6801 The trust checking code now has a default behaviour: it will just
6802 check for an object with the same NID as the passed id. Functions can
6803 be provided to override either the default behaviour or the behaviour
6804 for a given id. SSL client, server and email already have functions
6805 in place for compatibility: they check the NID and also return "trusted"
6806 if the certificate is self signed.
6809 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6810 traditional format into an EVP_PKEY structure.
6813 *) Add a password callback function PEM_cb() which either prompts for
6814 a password if usr_data is NULL or otherwise assumes it is a null
6815 terminated password. Allow passwords to be passed on command line
6816 environment or config files in a few more utilities.
6819 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6820 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6821 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6822 Update documentation.
6825 *) Support for ASN1 "NULL" type. This could be handled before by using
6826 ASN1_TYPE but there wasn't any function that would try to read a NULL
6827 and produce an error if it couldn't. For compatibility we also have
6828 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6829 don't allocate anything because they don't need to.
6832 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6834 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6836 *) Rebuild of the memory allocation routines used by OpenSSL code and
6837 possibly others as well. The purpose is to make an interface that
6838 provide hooks so anyone can build a separate set of allocation and
6839 deallocation routines to be used by OpenSSL, for example memory
6840 pool implementations, or something else, which was previously hard
6841 since Malloc(), Realloc() and Free() were defined as macros having
6842 the values malloc, realloc and free, respectively (except for Win32
6843 compilations). The same is provided for memory debugging code.
6844 OpenSSL already comes with functionality to find memory leaks, but
6845 this gives people a chance to debug other memory problems.
6847 With these changes, a new set of functions and macros have appeared:
6849 CRYPTO_set_mem_debug_functions() [F]
6850 CRYPTO_get_mem_debug_functions() [F]
6851 CRYPTO_dbg_set_options() [F]
6852 CRYPTO_dbg_get_options() [F]
6853 CRYPTO_malloc_debug_init() [M]
6855 The memory debug functions are NULL by default, unless the library
6856 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6857 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6858 gives the standard debugging functions that come with OpenSSL) or
6859 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6860 provided by the library user) must be used. When the standard
6861 debugging functions are used, CRYPTO_dbg_set_options can be used to
6862 request additional information:
6863 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6864 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6866 Also, things like CRYPTO_set_mem_functions will always give the
6867 expected result (the new set of functions is used for allocation
6868 and deallocation) at all times, regardless of platform and compiler
6871 To finish it up, some functions that were never use in any other
6872 way than through macros have a new API and new semantic:
6875 CRYPTO_dbg_realloc()
6878 All macros of value have retained their old syntax.
6879 [Richard Levitte and Bodo Moeller]
6881 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6882 ordering of SMIMECapabilities wasn't in "strength order" and there
6883 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6887 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6888 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6889 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6891 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6892 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6893 functionality to handle multipart/signed properly) and a utility
6894 called 'smime' to call all this stuff. This is based on code I
6895 originally wrote for Celo who have kindly allowed it to be
6896 included in OpenSSL.
6899 *) Add variants des_set_key_checked and des_set_key_unchecked of
6900 des_set_key (aka des_key_sched). Global variable des_check_key
6901 decides which of these is called by des_set_key; this way
6902 des_check_key behaves as it always did, but applications and
6903 the library itself, which was buggy for des_check_key == 1,
6904 have a cleaner way to pick the version they need.
6907 *) New function PKCS12_newpass() which changes the password of a
6911 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6912 dynamic mix. In both cases the ids can be used as an index into the
6913 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6914 functions so they accept a list of the field values and the
6915 application doesn't need to directly manipulate the X509_TRUST
6919 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6923 *) Modify the way the V3 extension code looks up extensions. This now
6924 works in a similar way to the object code: we have some "standard"
6925 extensions in a static table which is searched with OBJ_bsearch()
6926 and the application can add dynamic ones if needed. The file
6927 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6928 updated whenever a new extension is added to the core code and kept
6929 in ext_nid order. There is a simple program 'tabtest.c' which checks
6930 this. New extensions are not added too often so this file can readily
6931 be maintained manually.
6933 There are two big advantages in doing things this way. The extensions
6934 can be looked up immediately and no longer need to be "added" using
6935 X509V3_add_standard_extensions(): this function now does nothing.
6936 [Side note: I get *lots* of email saying the extension code doesn't
6937 work because people forget to call this function]
6938 Also no dynamic allocation is done unless new extensions are added:
6939 so if we don't add custom extensions there is no need to call
6940 X509V3_EXT_cleanup().
6943 *) Modify enc utility's salting as follows: make salting the default. Add a
6944 magic header, so unsalted files fail gracefully instead of just decrypting
6945 to garbage. This is because not salting is a big security hole, so people
6946 should be discouraged from doing it.
6949 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6950 digest to be passed on the command line but it only used this
6951 parameter when signing a certificate. Modified so all relevant
6952 operations are affected by the digest parameter including the
6953 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6954 DSA key was used because it didn't fix the digest.
6957 *) Initial certificate chain verify code. Currently tests the untrusted
6958 certificates for consistency with the verify purpose (which is set
6959 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6961 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6962 this is because it will reject chains with invalid extensions whereas
6963 every previous version of OpenSSL and SSLeay made no checks at all.
6965 Trust code: checks the root CA for the relevant trust settings. Trust
6966 settings have an initial value consistent with the verify purpose: e.g.
6967 if the verify purpose is for SSL client use it expects the CA to be
6968 trusted for SSL client use. However the default value can be changed to
6969 permit custom trust settings: one example of this would be to only trust
6970 certificates from a specific "secure" set of CAs.
6972 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6973 which should be used for version portability: especially since the
6974 verify structure is likely to change more often now.
6976 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6977 to set them. If not set then assume SSL clients will verify SSL servers
6980 Two new options to the verify program: -untrusted allows a set of
6981 untrusted certificates to be passed in and -purpose which sets the
6982 intended purpose of the certificate. If a purpose is set then the
6983 new chain verify code is used to check extension consistency.
6986 *) Support for the authority information access extension.
6989 *) Modify RSA and DSA PEM read routines to transparently handle
6990 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6991 public keys in a format compatible with certificate
6992 SubjectPublicKeyInfo structures. Unfortunately there were already
6993 functions called *_PublicKey_* which used various odd formats so
6994 these are retained for compatibility: however the DSA variants were
6995 never in a public release so they have been deleted. Changed dsa/rsa
6996 utilities to handle the new format: note no releases ever handled public
6997 keys so we should be OK.
6999 The primary motivation for this change is to avoid the same fiasco
7000 that dogs private keys: there are several incompatible private key
7001 formats some of which are standard and some OpenSSL specific and
7002 require various evil hacks to allow partial transparent handling and
7003 even then it doesn't work with DER formats. Given the option anything
7004 other than PKCS#8 should be dumped: but the other formats have to
7005 stay in the name of compatibility.
7007 With public keys and the benefit of hindsight one standard format
7008 is used which works with EVP_PKEY, RSA or DSA structures: though
7009 it clearly returns an error if you try to read the wrong kind of key.
7011 Added a -pubkey option to the 'x509' utility to output the public key.
7012 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7013 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7014 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7015 that do the same as the EVP_PKEY_assign_*() except they up the
7016 reference count of the added key (they don't "swallow" the
7020 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7021 CRLs would fail if the file contained no certificates or no CRLs:
7022 added a new function to read in both types and return the number
7023 read: this means that if none are read it will be an error. The
7024 DER versions of the certificate and CRL reader would always fail
7025 because it isn't possible to mix certificates and CRLs in DER format
7026 without choking one or the other routine. Changed this to just read
7027 a certificate: this is the best we can do. Also modified the code
7028 in apps/verify.c to take notice of return codes: it was previously
7029 attempting to read in certificates from NULL pointers and ignoring
7030 any errors: this is one reason why the cert and CRL reader seemed
7031 to work. It doesn't check return codes from the default certificate
7032 routines: these may well fail if the certificates aren't installed.
7035 *) Code to support otherName option in GeneralName.
7038 *) First update to verify code. Change the verify utility
7039 so it warns if it is passed a self signed certificate:
7040 for consistency with the normal behaviour. X509_verify
7041 has been modified to it will now verify a self signed
7042 certificate if *exactly* the same certificate appears
7043 in the store: it was previously impossible to trust a
7044 single self signed certificate. This means that:
7045 openssl verify ss.pem
7046 now gives a warning about a self signed certificate but
7047 openssl verify -CAfile ss.pem ss.pem
7051 *) For servers, store verify_result in SSL_SESSION data structure
7052 (and add it to external session representation).
7053 This is needed when client certificate verifications fails,
7054 but an application-provided verification callback (set by
7055 SSL_CTX_set_cert_verify_callback) allows accepting the session
7056 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7057 but returns 1): When the session is reused, we have to set
7058 ssl->verify_result to the appropriate error code to avoid
7060 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7062 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7063 case in PKCS7_dataInit() where the signed PKCS7 structure
7064 didn't contain any existing data because it was being created.
7065 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7067 *) Add a salt to the key derivation routines in enc.c. This
7068 forms the first 8 bytes of the encrypted file. Also add a
7069 -S option to allow a salt to be input on the command line.
7072 *) New function X509_cmp(). Oddly enough there wasn't a function
7073 to compare two certificates. We do this by working out the SHA1
7074 hash and comparing that. X509_cmp() will be needed by the trust
7078 *) SSL_get1_session() is like SSL_get_session(), but increments
7079 the reference count in the SSL_SESSION returned.
7080 [Geoff Thorpe <geoff@eu.c2.net>]
7082 *) Fix for 'req': it was adding a null to request attributes.
7083 Also change the X509_LOOKUP and X509_INFO code to handle
7084 certificate auxiliary information.
7087 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7091 *) Add the possibility to add extra information to the memory leak
7092 detecting output, to form tracebacks, showing from where each
7093 allocation was originated: CRYPTO_push_info("constant string") adds
7094 the string plus current file name and line number to a per-thread
7095 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7096 is like calling CYRPTO_pop_info() until the stack is empty.
7097 Also updated memory leak detection code to be multi-thread-safe.
7100 *) Add options -text and -noout to pkcs7 utility and delete the
7101 encryption options which never did anything. Update docs.
7104 *) Add options to some of the utilities to allow the pass phrase
7105 to be included on either the command line (not recommended on
7106 OSes like Unix) or read from the environment. Update the
7107 manpages and fix a few bugs.
7110 *) Add a few manpages for some of the openssl commands.
7113 *) Fix the -revoke option in ca. It was freeing up memory twice,
7114 leaking and not finding already revoked certificates.
7117 *) Extensive changes to support certificate auxiliary information.
7118 This involves the use of X509_CERT_AUX structure and X509_AUX
7119 functions. An X509_AUX function such as PEM_read_X509_AUX()
7120 can still read in a certificate file in the usual way but it
7121 will also read in any additional "auxiliary information". By
7122 doing things this way a fair degree of compatibility can be
7123 retained: existing certificates can have this information added
7124 using the new 'x509' options.
7126 Current auxiliary information includes an "alias" and some trust
7127 settings. The trust settings will ultimately be used in enhanced
7128 certificate chain verification routines: currently a certificate
7129 can only be trusted if it is self signed and then it is trusted
7133 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7134 The problem was that one of the replacement routines had not been working
7135 since SSLeay releases. For now the offending routine has been replaced
7136 with non-optimised assembler. Even so, this now gives around 95%
7137 performance improvement for 1024 bit RSA signs.
7140 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7141 handling. Most clients have the effective key size in bits equal to
7142 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7143 A few however don't do this and instead use the size of the decrypted key
7144 to determine the RC2 key length and the AlgorithmIdentifier to determine
7145 the effective key length. In this case the effective key length can still
7146 be 40 bits but the key length can be 168 bits for example. This is fixed
7147 by manually forcing an RC2 key into the EVP_PKEY structure because the
7148 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7149 the key length and effective key length are equal.
7152 *) Add a bunch of functions that should simplify the creation of
7153 X509_NAME structures. Now you should be able to do:
7154 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7155 and have it automatically work out the correct field type and fill in
7156 the structures. The more adventurous can try:
7157 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7158 and it will (hopefully) work out the correct multibyte encoding.
7161 *) Change the 'req' utility to use the new field handling and multibyte
7162 copy routines. Before the DN field creation was handled in an ad hoc
7163 way in req, ca, and x509 which was rather broken and didn't support
7164 BMPStrings or UTF8Strings. Since some software doesn't implement
7165 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7166 using the dirstring_type option. See the new comment in the default
7167 openssl.cnf for more info.
7170 *) Make crypto/rand/md_rand.c more robust:
7171 - Assure unique random numbers after fork().
7172 - Make sure that concurrent threads access the global counter and
7173 md serializably so that we never lose entropy in them
7174 or use exactly the same state in multiple threads.
7175 Access to the large state is not always serializable because
7176 the additional locking could be a performance killer, and
7177 md should be large enough anyway.
7180 *) New file apps/app_rand.c with commonly needed functionality
7181 for handling the random seed file.
7183 Use the random seed file in some applications that previously did not:
7185 dsaparam -genkey (which also ignored its '-rand' option),
7188 x509 (when signing).
7189 Except on systems with /dev/urandom, it is crucial to have a random
7190 seed file at least for key creation, DSA signing, and for DH exchanges;
7191 for RSA signatures we could do without one.
7193 gendh and gendsa (unlike genrsa) used to read only the first byte
7194 of each file listed in the '-rand' option. The function as previously
7195 found in genrsa is now in app_rand.c and is used by all programs
7196 that support '-rand'.
7199 *) In RAND_write_file, use mode 0600 for creating files;
7200 don't just chmod when it may be too late.
7203 *) Report an error from X509_STORE_load_locations
7204 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7207 *) New function ASN1_mbstring_copy() this copies a string in either
7208 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7209 into an ASN1_STRING type. A mask of permissible types is passed
7210 and it chooses the "minimal" type to use or an error if not type
7214 *) Add function equivalents to the various macros in asn1.h. The old
7215 macros are retained with an M_ prefix. Code inside the library can
7216 use the M_ macros. External code (including the openssl utility)
7217 should *NOT* in order to be "shared library friendly".
7220 *) Add various functions that can check a certificate's extensions
7221 to see if it usable for various purposes such as SSL client,
7222 server or S/MIME and CAs of these types. This is currently
7223 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7224 verification. Also added a -purpose flag to x509 utility to
7225 print out all the purposes.
7228 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7232 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7233 for, obtain and decode and extension and obtain its critical flag.
7234 This allows all the necessary extension code to be handled in a
7235 single function call.
7238 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7239 platforms. See crypto/rc4/rc4_enc.c for further details.
7242 *) New -noout option to asn1parse. This causes no output to be produced
7243 its main use is when combined with -strparse and -out to extract data
7244 from a file (which may not be in ASN.1 format).
7247 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7248 when producing the local key id.
7249 [Richard Levitte <levitte@stacken.kth.se>]
7251 *) New option -dhparam in s_server. This allows a DH parameter file to be
7252 stated explicitly. If it is not stated then it tries the first server
7253 certificate file. The previous behaviour hard coded the filename
7257 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7258 a public key to be input or output. For example:
7259 openssl rsa -in key.pem -pubout -out pubkey.pem
7260 Also added necessary DSA public key functions to handle this.
7263 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7264 in the message. This was handled by allowing
7265 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7266 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7268 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7269 to the end of the strings whereas this didn't. This would cause problems
7270 if strings read with d2i_ASN1_bytes() were later modified.
7271 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7273 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7274 data and it contains EOF it will end up returning an error. This is
7275 caused by input 46 bytes long. The cause is due to the way base64
7276 BIOs find the start of base64 encoded data. They do this by trying a
7277 trial decode on each line until they find one that works. When they
7278 do a flag is set and it starts again knowing it can pass all the
7279 data directly through the decoder. Unfortunately it doesn't reset
7280 the context it uses. This means that if EOF is reached an attempt
7281 is made to pass two EOFs through the context and this causes the
7282 resulting error. This can also cause other problems as well. As is
7283 usual with these problems it takes *ages* to find and the fix is
7284 trivial: move one line.
7285 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7287 *) Ugly workaround to get s_client and s_server working under Windows. The
7288 old code wouldn't work because it needed to select() on sockets and the
7289 tty (for keypresses and to see if data could be written). Win32 only
7290 supports select() on sockets so we select() with a 1s timeout on the
7291 sockets and then see if any characters are waiting to be read, if none
7292 are present then we retry, we also assume we can always write data to
7293 the tty. This isn't nice because the code then blocks until we've
7294 received a complete line of data and it is effectively polling the
7295 keyboard at 1s intervals: however it's quite a bit better than not
7296 working at all :-) A dedicated Windows application might handle this
7297 with an event loop for example.
7300 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7301 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7302 will be called when RSA_sign() and RSA_verify() are used. This is useful
7303 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7304 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7305 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7306 This necessitated the support of an extra signature type NID_md5_sha1
7307 for SSL signatures and modifications to the SSL library to use it instead
7308 of calling RSA_public_decrypt() and RSA_private_encrypt().
7311 *) Add new -verify -CAfile and -CApath options to the crl program, these
7312 will lookup a CRL issuers certificate and verify the signature in a
7313 similar way to the verify program. Tidy up the crl program so it
7314 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7315 less strict. It will now permit CRL extensions even if it is not
7316 a V2 CRL: this will allow it to tolerate some broken CRLs.
7319 *) Initialize all non-automatic variables each time one of the openssl
7320 sub-programs is started (this is necessary as they may be started
7321 multiple times from the "OpenSSL>" prompt).
7322 [Lennart Bang, Bodo Moeller]
7324 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7325 removing all other RSA functionality (this is what NO_RSA does). This
7326 is so (for example) those in the US can disable those operations covered
7327 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7331 *) Non-copying interface to BIO pairs.
7332 (still largely untested)
7335 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7336 ASCII string. This was handled independently in various places before.
7339 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7340 UTF8 strings a character at a time.
7343 *) Use client_version from client hello to select the protocol
7344 (s23_srvr.c) and for RSA client key exchange verification
7345 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7348 *) Add various utility functions to handle SPKACs, these were previously
7349 handled by poking round in the structure internals. Added new function
7350 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7351 print, verify and generate SPKACs. Based on an original idea from
7352 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7355 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7358 *) Allow the config file extension section to be overwritten on the
7359 command line. Based on an original idea from Massimiliano Pala
7360 <madwolf@comune.modena.it>. The new option is called -extensions
7361 and can be applied to ca, req and x509. Also -reqexts to override
7362 the request extensions in req and -crlexts to override the crl extensions
7366 *) Add new feature to the SPKAC handling in ca. Now you can include
7367 the same field multiple times by preceding it by "XXXX." for example:
7370 this is the same syntax as used in the req config file.
7373 *) Allow certificate extensions to be added to certificate requests. These
7374 are specified in a 'req_extensions' option of the req section of the
7375 config file. They can be printed out with the -text option to req but
7376 are otherwise ignored at present.
7379 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7380 data read consists of only the final block it would not decrypted because
7381 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7382 A misplaced 'break' also meant the decrypted final block might not be
7383 copied until the next read.
7386 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7387 a few extra parameters to the DH structure: these will be useful if
7388 for example we want the value of 'q' or implement X9.42 DH.
7391 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7392 provides hooks that allow the default DSA functions or functions on a
7393 "per key" basis to be replaced. This allows hardware acceleration and
7394 hardware key storage to be handled without major modification to the
7395 library. Also added low level modexp hooks and CRYPTO_EX structure and
7396 associated functions.
7399 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7400 as "read only": it can't be written to and the buffer it points to will
7401 not be freed. Reading from a read only BIO is much more efficient than
7402 a normal memory BIO. This was added because there are several times when
7403 an area of memory needs to be read from a BIO. The previous method was
7404 to create a memory BIO and write the data to it, this results in two
7405 copies of the data and an O(n^2) reading algorithm. There is a new
7406 function BIO_new_mem_buf() which creates a read only memory BIO from
7407 an area of memory. Also modified the PKCS#7 routines to use read only
7411 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7412 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7413 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7414 but a retry condition occured while trying to read the rest.
7417 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7418 NID_pkcs7_encrypted by default: this was wrong since this should almost
7419 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7420 the encrypted data type: this is a more sensible place to put it and it
7421 allows the PKCS#12 code to be tidied up that duplicated this
7425 *) Changed obj_dat.pl script so it takes its input and output files on
7426 the command line. This should avoid shell escape redirection problems
7430 *) Initial support for certificate extension requests, these are included
7431 in things like Xenroll certificate requests. Included functions to allow
7432 extensions to be obtained and added.
7435 *) -crlf option to s_client and s_server for sending newlines as
7436 CRLF (as required by many protocols).
7439 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7441 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7442 [Ralf S. Engelschall]
7444 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7445 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7447 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7451 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7452 DH parameters/keys (q is lost during that conversion, but the resulting
7453 DH parameters contain its length).
7455 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7456 much faster than DH_generate_parameters (which creates parameters
7457 where p = 2*q + 1), and also the smaller q makes DH computations
7458 much more efficient (160-bit exponentiation instead of 1024-bit
7459 exponentiation); so this provides a convenient way to support DHE
7460 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7461 utter importance to use
7462 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7464 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7465 when such DH parameters are used, because otherwise small subgroup
7466 attacks may become possible!
7469 *) Avoid memory leak in i2d_DHparams.
7472 *) Allow the -k option to be used more than once in the enc program:
7473 this allows the same encrypted message to be read by multiple recipients.
7476 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7477 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7478 it will always use the numerical form of the OID, even if it has a short
7482 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7483 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7484 otherwise bn_mod_exp was called. In the case of hardware keys for example
7485 no private key components need be present and it might store extra data
7486 in the RSA structure, which cannot be accessed from bn_mod_exp.
7487 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7488 private key operations.
7491 *) Added support for SPARC Linux.
7494 *) pem_password_cb function type incompatibly changed from
7495 typedef int pem_password_cb(char *buf, int size, int rwflag);
7497 ....(char *buf, int size, int rwflag, void *userdata);
7498 so that applications can pass data to their callbacks:
7499 The PEM[_ASN1]_{read,write}... functions and macros now take an
7500 additional void * argument, which is just handed through whenever
7501 the password callback is called.
7502 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7504 New function SSL_CTX_set_default_passwd_cb_userdata.
7506 Compatibility note: As many C implementations push function arguments
7507 onto the stack in reverse order, the new library version is likely to
7508 interoperate with programs that have been compiled with the old
7509 pem_password_cb definition (PEM_whatever takes some data that
7510 happens to be on the stack as its last argument, and the callback
7511 just ignores this garbage); but there is no guarantee whatsoever that
7514 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7515 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7516 problems not only on Windows, but also on some Unix platforms.
7517 To avoid problematic command lines, these definitions are now in an
7518 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7519 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7522 *) MIPS III/IV assembler module is reimplemented.
7525 *) More DES library cleanups: remove references to srand/rand and
7526 delete an unused file.
7529 *) Add support for the the free Netwide assembler (NASM) under Win32,
7530 since not many people have MASM (ml) and it can be hard to obtain.
7531 This is currently experimental but it seems to work OK and pass all
7532 the tests. Check out INSTALL.W32 for info.
7535 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7536 without temporary keys kept an extra copy of the server key,
7537 and connections with temporary keys did not free everything in case
7541 *) New function RSA_check_key and new openssl rsa option -check
7542 for verifying the consistency of RSA keys.
7543 [Ulf Moeller, Bodo Moeller]
7545 *) Various changes to make Win32 compile work:
7546 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7547 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7548 comparison" warnings.
7549 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7552 *) Add a debugging option to PKCS#5 v2 key generation function: when
7553 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7554 derived keys are printed to stderr.
7557 *) Copy the flags in ASN1_STRING_dup().
7558 [Roman E. Pavlov <pre@mo.msk.ru>]
7560 *) The x509 application mishandled signing requests containing DSA
7561 keys when the signing key was also DSA and the parameters didn't match.
7563 It was supposed to omit the parameters when they matched the signing key:
7564 the verifying software was then supposed to automatically use the CA's
7565 parameters if they were absent from the end user certificate.
7567 Omitting parameters is no longer recommended. The test was also
7568 the wrong way round! This was probably due to unusual behaviour in
7569 EVP_cmp_parameters() which returns 1 if the parameters match.
7570 This meant that parameters were omitted when they *didn't* match and
7571 the certificate was useless. Certificates signed with 'ca' didn't have
7573 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7575 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7576 The interface is as follows:
7577 Applications can use
7578 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7579 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7580 "off" is now the default.
7581 The library internally uses
7582 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7583 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7584 to disable memory-checking temporarily.
7586 Some inconsistent states that previously were possible (and were
7587 even the default) are now avoided.
7589 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7590 with each memory chunk allocated; this is occasionally more helpful
7591 than just having a counter.
7593 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7595 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7599 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7600 which largely parallels "options", but is for changing API behaviour,
7601 whereas "options" are about protocol behaviour.
7602 Initial "mode" flags are:
7604 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7605 a single record has been written.
7606 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7607 retries use the same buffer location.
7608 (But all of the contents must be
7612 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7615 *) Fix problems with no-hmac etc.
7616 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7618 *) New functions RSA_get_default_method(), RSA_set_method() and
7619 RSA_get_method(). These allows replacement of RSA_METHODs without having
7620 to mess around with the internals of an RSA structure.
7623 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7624 Also really enable memory leak checks in openssl.c and in some
7626 [Chad C. Mulligan, Bodo Moeller]
7628 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7629 up the length of negative integers. This has now been simplified to just
7630 store the length when it is first determined and use it later, rather
7631 than trying to keep track of where data is copied and updating it to
7633 [Steve Henson, reported by Brien Wheeler
7634 <bwheeler@authentica-security.com>]
7636 *) Add a new function PKCS7_signatureVerify. This allows the verification
7637 of a PKCS#7 signature but with the signing certificate passed to the
7638 function itself. This contrasts with PKCS7_dataVerify which assumes the
7639 certificate is present in the PKCS#7 structure. This isn't always the
7640 case: certificates can be omitted from a PKCS#7 structure and be
7641 distributed by "out of band" means (such as a certificate database).
7644 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7645 function prototypes in pem.h, also change util/mkdef.pl to add the
7646 necessary function names.
7649 *) mk1mf.pl (used by Windows builds) did not properly read the
7650 options set by Configure in the top level Makefile, and Configure
7651 was not even able to write more than one option correctly.
7652 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7655 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7656 file to be loaded from a BIO or FILE pointer. The BIO version will
7657 for example allow memory BIOs to contain config info.
7660 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7661 Whoever hopes to achieve shared-library compatibility across versions
7662 must use this, not the compile-time macro.
7663 (Exercise 0.9.4: Which is the minimum library version required by
7665 Note: All this applies only to multi-threaded programs, others don't
7669 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7670 through a BIO pair triggered the default case, i.e.
7671 SSLerr(...,SSL_R_UNKNOWN_STATE).
7674 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7675 can use the SSL library even if none of the specific BIOs is
7679 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7680 for the encoded length.
7681 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7683 *) Add initial documentation of the X509V3 functions.
7686 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7687 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7688 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7689 secure PKCS#8 private key format with a high iteration count.
7692 *) Fix determination of Perl interpreter: A perl or perl5
7693 _directory_ in $PATH was also accepted as the interpreter.
7694 [Ralf S. Engelschall]
7696 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7697 wrong with it but it was very old and did things like calling
7698 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7702 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7703 to use the new extension code.
7706 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7707 with macros. This should make it easier to change their form, add extra
7708 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7712 *) Add to configuration table a new entry that can specify an alternative
7713 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7714 according to Mark Crispin <MRC@Panda.COM>.
7718 *) DES CBC did not update the IV. Weird.
7721 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7722 Changing the behaviour of the former might break existing programs --
7723 where IV updating is needed, des_ncbc_encrypt can be used.
7726 *) When bntest is run from "make test" it drives bc to check its
7727 calculations, as well as internally checking them. If an internal check
7728 fails, it needs to cause bc to give a non-zero result or make test carries
7729 on without noticing the failure. Fixed.
7732 *) DES library cleanups.
7735 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7736 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7737 ciphers. NOTE: although the key derivation function has been verified
7738 against some published test vectors it has not been extensively tested
7739 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7743 *) Instead of "mkdir -p", which is not fully portable, use new
7744 Perl script "util/mkdir-p.pl".
7747 *) Rewrite the way password based encryption (PBE) is handled. It used to
7748 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7749 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7750 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7751 the 'parameter' field of the AlgorithmIdentifier is passed to the
7752 underlying key generation function so it must do its own ASN1 parsing.
7753 This has also changed the EVP_PBE_CipherInit() function which now has a
7754 'parameter' argument instead of literal salt and iteration count values
7755 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7758 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7759 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7760 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7761 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7762 value was just used as a "magic string" and not used directly its
7763 value doesn't matter.
7766 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7770 *) "linux-sparc64" configuration (ultrapenguin).
7771 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7772 "linux-sparc" configuration.
7773 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7775 *) config now generates no-xxx options for missing ciphers.
7778 *) Support the EBCDIC character set (work in progress).
7779 File ebcdic.c not yet included because it has a different license.
7780 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7782 *) Support BS2000/OSD-POSIX.
7783 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7785 *) Make callbacks for key generation use void * instead of char *.
7788 *) Make S/MIME samples compile (not yet tested).
7791 *) Additional typesafe stacks.
7794 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7798 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7800 *) New configuration variant "sco5-gcc".
7802 *) Updated some demos.
7803 [Sean O Riordain, Wade Scholine]
7805 *) Add missing BIO_free at exit of pkcs12 application.
7808 *) Fix memory leak in conf.c.
7811 *) Updates for Win32 to assembler version of MD5.
7814 *) Set #! path to perl in apps/der_chop to where we found it
7815 instead of using a fixed path.
7818 *) SHA library changes for irix64-mips4-cc.
7821 *) Improvements for VMS support.
7825 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7827 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7828 This also avoids the problems with SC4.2 and unpatched SC5.
7829 [Andy Polyakov <appro@fy.chalmers.se>]
7831 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7832 These are required because of the typesafe stack would otherwise break
7833 existing code. If old code used a structure member which used to be STACK
7834 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7835 sk_num or sk_value it would produce an error because the num, data members
7836 are not present in STACK_OF. Now it just produces a warning. sk_set
7837 replaces the old method of assigning a value to sk_value
7838 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7839 that does this will no longer work (and should use sk_set instead) but
7840 this could be regarded as a "questionable" behaviour anyway.
7843 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7844 correctly handle encrypted S/MIME data.
7847 *) Change type of various DES function arguments from des_cblock
7848 (which means, in function argument declarations, pointer to char)
7849 to des_cblock * (meaning pointer to array with 8 char elements),
7850 which allows the compiler to do more typechecking; it was like
7851 that back in SSLeay, but with lots of ugly casts.
7853 Introduce new type const_des_cblock.
7856 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7857 problems: find RecipientInfo structure that matches recipient certificate
7858 and initialise the ASN1 structures properly based on passed cipher.
7861 *) Belatedly make the BN tests actually check the results.
7864 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7865 to and from BNs: it was completely broken. New compilation option
7866 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7867 key elements as negative integers.
7870 *) Reorganize and speed up MD5.
7871 [Andy Polyakov <appro@fy.chalmers.se>]
7874 [Richard Levitte <richard@levitte.org>]
7876 *) New option -out to asn1parse to allow the parsed structure to be
7877 output to a file. This is most useful when combined with the -strparse
7878 option to examine the output of things like OCTET STRINGS.
7881 *) Make SSL library a little more fool-proof by not requiring any longer
7882 that SSL_set_{accept,connect}_state be called before
7883 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7884 in many applications because usually everything *appeared* to work as
7885 intended anyway -- now it really works as intended).
7888 *) Move openssl.cnf out of lib/.
7891 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7892 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7893 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7894 [Ralf S. Engelschall]
7896 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7897 handle PKCS#7 enveloped data properly.
7898 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7900 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7901 copying pointers. The cert_st handling is changed by this in
7902 various ways (and thus what used to be known as ctx->default_cert
7903 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7904 any longer when s->cert does not give us what we need).
7905 ssl_cert_instantiate becomes obsolete by this change.
7906 As soon as we've got the new code right (possibly it already is?),
7907 we have solved a couple of bugs of the earlier code where s->cert
7908 was used as if it could not have been shared with other SSL structures.
7910 Note that using the SSL API in certain dirty ways now will result
7911 in different behaviour than observed with earlier library versions:
7912 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7913 does not influence s as it used to.
7915 In order to clean up things more thoroughly, inside SSL_SESSION
7916 we don't use CERT any longer, but a new structure SESS_CERT
7917 that holds per-session data (if available); currently, this is
7918 the peer's certificate chain and, for clients, the server's certificate
7919 and temporary key. CERT holds only those values that can have
7920 meaningful defaults in an SSL_CTX.
7923 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7924 from the internal representation. Various PKCS#7 fixes: remove some
7925 evil casts and set the enc_dig_alg field properly based on the signing
7929 *) Allow PKCS#12 password to be set from the command line or the
7930 environment. Let 'ca' get its config file name from the environment
7931 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7935 *) Allow certificate policies extension to use an IA5STRING for the
7936 organization field. This is contrary to the PKIX definition but
7937 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7941 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7942 without disallowing inline assembler and the like for non-pedantic builds.
7945 *) Support Borland C++ builder.
7946 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7951 *) SHA-1 cleanups and performance enhancements.
7952 [Andy Polyakov <appro@fy.chalmers.se>]
7954 *) Sparc v8plus assembler for the bignum library.
7955 [Andy Polyakov <appro@fy.chalmers.se>]
7957 *) Accept any -xxx and +xxx compiler options in Configure.
7960 *) Update HPUX configuration.
7963 *) Add missing sk_<type>_unshift() function to safestack.h
7964 [Ralf S. Engelschall]
7966 *) New function SSL_CTX_use_certificate_chain_file that sets the
7967 "extra_cert"s in addition to the certificate. (This makes sense
7968 only for "PEM" format files, as chains as a whole are not
7972 *) Support verify_depth from the SSL API.
7973 x509_vfy.c had what can be considered an off-by-one-error:
7974 Its depth (which was not part of the external interface)
7975 was actually counting the number of certificates in a chain;
7976 now it really counts the depth.
7979 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7980 instead of X509err, which often resulted in confusing error
7981 messages since the error codes are not globally unique
7982 (e.g. an alleged error in ssl3_accept when a certificate
7983 didn't match the private key).
7985 *) New function SSL_CTX_set_session_id_context that allows to set a default
7986 value (so that you don't need SSL_set_session_id_context for each
7987 connection using the SSL_CTX).
7990 *) OAEP decoding bug fix.
7993 *) Support INSTALL_PREFIX for package builders, as proposed by
7997 *) New Configure options "threads" and "no-threads". For systems
7998 where the proper compiler options are known (currently Solaris
7999 and Linux), "threads" is the default.
8002 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8005 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8006 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8007 such as /usr/local/bin.
8010 *) "make linux-shared" to build shared libraries.
8011 [Niels Poppe <niels@netbox.org>]
8013 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8016 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8017 extension adding in x509 utility.
8020 *) Remove NOPROTO sections and error code comments.
8023 *) Partial rewrite of the DEF file generator to now parse the ANSI
8027 *) New Configure options --prefix=DIR and --openssldir=DIR.
8030 *) Complete rewrite of the error code script(s). It is all now handled
8031 by one script at the top level which handles error code gathering,
8032 header rewriting and C source file generation. It should be much better
8033 than the old method: it now uses a modified version of Ulf's parser to
8034 read the ANSI prototypes in all header files (thus the old K&R definitions
8035 aren't needed for error creation any more) and do a better job of
8036 translating function codes into names. The old 'ASN1 error code imbedded
8037 in a comment' is no longer necessary and it doesn't use .err files which
8038 have now been deleted. Also the error code call doesn't have to appear all
8039 on one line (which resulted in some large lines...).
8042 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8045 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8046 0 (which usually indicates a closed connection), but continue reading.
8049 *) Fix some race conditions.
8052 *) Add support for CRL distribution points extension. Add Certificate
8053 Policies and CRL distribution points documentation.
8056 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8059 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8060 8 of keying material. Merlin has also confirmed interop with this fix
8061 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8062 [Merlin Hughes <merlin@baltimore.ie>]
8064 *) Fix lots of warnings.
8065 [Richard Levitte <levitte@stacken.kth.se>]
8067 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8068 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8069 [Richard Levitte <levitte@stacken.kth.se>]
8071 *) Fix problems with sizeof(long) == 8.
8072 [Andy Polyakov <appro@fy.chalmers.se>]
8074 *) Change functions to ANSI C.
8077 *) Fix typos in error codes.
8078 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8080 *) Remove defunct assembler files from Configure.
8083 *) SPARC v8 assembler BIGNUM implementation.
8084 [Andy Polyakov <appro@fy.chalmers.se>]
8086 *) Support for Certificate Policies extension: both print and set.
8087 Various additions to support the r2i method this uses.
8090 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8091 return a const string when you are expecting an allocated buffer.
8094 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8095 types DirectoryString and DisplayText.
8098 *) Add code to allow r2i extensions to access the configuration database,
8099 add an LHASH database driver and add several ctx helper functions.
8102 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8103 fail when they extended the size of a BIGNUM.
8106 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8107 support typesafe stack.
8110 *) Fix typo in SSL_[gs]et_options().
8111 [Nils Frostberg <nils@medcom.se>]
8113 *) Delete various functions and files that belonged to the (now obsolete)
8114 old X509V3 handling code.
8117 *) New Configure option "rsaref".
8120 *) Don't auto-generate pem.h.
8123 *) Introduce type-safe ASN.1 SETs.
8126 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8127 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8129 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8130 that links with OpenSSL (well at least cause lots of warnings), but fear
8131 not: the conversion is trivial, and it eliminates loads of evil casts. A
8132 few STACKed things have been converted already. Feel free to convert more.
8133 In the fullness of time, I'll do away with the STACK type altogether.
8136 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8137 specified in <certfile> by updating the entry in the index.txt file.
8138 This way one no longer has to edit the index.txt file manually for
8139 revoking a certificate. The -revoke option does the gory details now.
8140 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8142 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8143 `-text' option at all and this way the `-noout -text' combination was
8144 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8145 [Ralf S. Engelschall]
8147 *) Make sure a corresponding plain text error message exists for the
8148 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8149 verify callback function determined that a certificate was revoked.
8150 [Ralf S. Engelschall]
8152 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8153 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8154 all available cipers including rc5, which was forgotten until now.
8155 In order to let the testing shell script know which algorithms
8156 are available, a new (up to now undocumented) command
8157 "openssl list-cipher-commands" is used.
8160 *) Bugfix: s_client occasionally would sleep in select() when
8161 it should have checked SSL_pending() first.
8164 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8165 the raw DSA values prior to ASN.1 encoding.
8168 *) Tweaks to Configure
8169 [Niels Poppe <niels@netbox.org>]
8171 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8175 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8178 *) New config option to avoid instructions that are illegal on the 80386.
8179 The default code is faster, but requires at least a 486.
8182 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8183 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8184 same as SSL2_VERSION anyway.
8187 *) New "-showcerts" option for s_client.
8190 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8191 application. Various cleanups and fixes.
8194 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8195 modify error routines to work internally. Add error codes and PBE init
8196 to library startup routines.
8199 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8200 packing functions to asn1 and evp. Changed function names and error
8201 codes along the way.
8204 *) PKCS12 integration: and so it begins... First of several patches to
8205 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8206 objects to objects.h
8209 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8210 and display support for Thawte strong extranet extension.
8213 *) Add LinuxPPC support.
8214 [Jeff Dubrule <igor@pobox.org>]
8216 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8217 bn_div_words in alpha.s.
8218 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8220 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8221 OAEP isn't supported when OpenSSL is built with RSAref.
8222 [Ulf Moeller <ulf@fitug.de>]
8224 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8225 so they no longer are missing under -DNOPROTO.
8226 [Soren S. Jorvang <soren@t.dk>]
8229 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8231 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8232 doesn't work when the session is reused. Coming soon!
8235 *) Fix a security hole, that allows sessions to be reused in the wrong
8236 context thus bypassing client cert protection! All software that uses
8237 client certs and session caches in multiple contexts NEEDS PATCHING to
8238 allow session reuse! A fuller solution is in the works.
8239 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8241 *) Some more source tree cleanups (removed obsolete files
8242 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8243 permission on "config" script to be executable) and a fix for the INSTALL
8245 [Ulf Moeller <ulf@fitug.de>]
8247 *) Remove some legacy and erroneous uses of malloc, free instead of
8249 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8251 *) Make rsa_oaep_test return non-zero on error.
8252 [Ulf Moeller <ulf@fitug.de>]
8254 *) Add support for native Solaris shared libraries. Configure
8255 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8256 if someone would make that last step automatic.
8257 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8259 *) ctx_size was not built with the right compiler during "make links". Fixed.
8262 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8263 except NULL ciphers". This means the default cipher list will no longer
8264 enable NULL ciphers. They need to be specifically enabled e.g. with
8265 the string "DEFAULT:eNULL".
8268 *) Fix to RSA private encryption routines: if p < q then it would
8269 occasionally produce an invalid result. This will only happen with
8270 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8273 *) Be less restrictive and allow also `perl util/perlpath.pl
8274 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8275 because this way one can also use an interpreter named `perl5' (which is
8276 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8277 installed as `perl').
8278 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8280 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8281 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8283 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8284 advapi32.lib to Win32 build and change the pem test comparision
8285 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8286 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8287 and crypto/des/ede_cbcm_enc.c.
8290 *) DES quad checksum was broken on big-endian architectures. Fixed.
8293 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8294 Win32 test batch file so it (might) work again. The Win32 test batch file
8295 is horrible: I feel ill....
8298 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8299 in e_os.h. Audit of header files to check ANSI and non ANSI
8300 sections: 10 functions were absent from non ANSI section and not exported
8301 from Windows DLLs. Fixed up libeay.num for new functions.
8304 *) Make `openssl version' output lines consistent.
8305 [Ralf S. Engelschall]
8307 *) Fix Win32 symbol export lists for BIO functions: Added
8308 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8309 to ms/libeay{16,32}.def.
8310 [Ralf S. Engelschall]
8312 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8313 fine under Unix and passes some trivial tests I've now added. But the
8314 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8315 added to make sure no one expects that this stuff really works in the
8316 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8317 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8319 [Ralf S. Engelschall]
8321 *) Fix the generation of two part addresses in perl.
8322 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8324 *) Add config entry for Linux on MIPS.
8325 [John Tobey <jtobey@channel1.com>]
8327 *) Make links whenever Configure is run, unless we are on Windoze.
8330 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8331 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8335 *) Add a useful kludge to allow package maintainers to specify compiler and
8336 other platforms details on the command line without having to patch the
8337 Configure script everytime: One now can use ``perl Configure
8338 <id>:<details>'', i.e. platform ids are allowed to have details appended
8339 to them (seperated by colons). This is treated as there would be a static
8340 pre-configured entry in Configure's %table under key <id> with value
8341 <details> and ``perl Configure <id>'' is called. So, when you want to
8342 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8343 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8344 now, which overrides the FreeBSD-elf entry on-the-fly.
8345 [Ralf S. Engelschall]
8347 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8350 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8351 on the `perl Configure ...' command line. This way one can compile
8352 OpenSSL libraries with Position Independent Code (PIC) which is needed
8353 for linking it into DSOs.
8354 [Ralf S. Engelschall]
8356 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8360 *) Cleaned up the LICENSE document: The official contact for any license
8361 questions now is the OpenSSL core team under openssl-core@openssl.org.
8362 And add a paragraph about the dual-license situation to make sure people
8363 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8364 to the OpenSSL toolkit.
8365 [Ralf S. Engelschall]
8367 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8368 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8369 Additonally cleaned up the `make links' target: Remove unnecessary
8370 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8371 to speed processing and no longer clutter the display with confusing
8372 stuff. Instead only the actually done links are displayed.
8373 [Ralf S. Engelschall]
8375 *) Permit null encryption ciphersuites, used for authentication only. It used
8376 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8377 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8381 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8382 signed attributes when verifying signatures (this would break them),
8383 the detached data encoding was wrong and public keys obtained using
8384 X509_get_pubkey() weren't freed.
8387 *) Add text documentation for the BUFFER functions. Also added a work around
8388 to a Win95 console bug. This was triggered by the password read stuff: the
8389 last character typed gets carried over to the next fread(). If you were
8390 generating a new cert request using 'req' for example then the last
8391 character of the passphrase would be CR which would then enter the first
8395 *) Added the new `Includes OpenSSL Cryptography Software' button as
8396 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8397 button and can be used by applications based on OpenSSL to show the
8398 relationship to the OpenSSL project.
8399 [Ralf S. Engelschall]
8401 *) Remove confusing variables in function signatures in files
8402 ssl/ssl_lib.c and ssl/ssl.h.
8403 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8405 *) Don't install bss_file.c under PREFIX/include/
8406 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8408 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8409 functions that return function pointers and has support for NT specific
8410 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8411 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8412 unsigned to signed types: this was killing the Win32 compile.
8415 *) Add new certificate file to stack functions,
8416 SSL_add_dir_cert_subjects_to_stack() and
8417 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8418 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8419 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8420 This means that Apache-SSL and similar packages don't have to mess around
8421 to add as many CAs as they want to the preferred list.
8424 *) Experiment with doxygen documentation. Currently only partially applied to
8426 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8427 openssl.doxy as the configuration file.
8430 *) Get rid of remaining C++-style comments which strict C compilers hate.
8431 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8433 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8434 compiled in by default: it has problems with large keys.
8437 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8438 DH private keys and/or callback functions which directly correspond to
8439 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8440 is needed for applications which have to configure certificates on a
8441 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8443 For the RSA certificate situation is makes no difference, but
8444 for the DSA certificate situation this fixes the "no shared cipher"
8445 problem where the OpenSSL cipher selection procedure failed because the
8446 temporary keys were not overtaken from the context and the API provided
8447 no way to reconfigure them.
8448 The new functions now let applications reconfigure the stuff and they
8449 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8450 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8451 non-public-API function ssl_cert_instantiate() is used as a helper
8452 function and also to reduce code redundancy inside ssl_rsa.c.
8453 [Ralf S. Engelschall]
8455 *) Move s_server -dcert and -dkey options out of the undocumented feature
8456 area because they are useful for the DSA situation and should be
8457 recognized by the users.
8458 [Ralf S. Engelschall]
8460 *) Fix the cipher decision scheme for export ciphers: the export bits are
8461 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8462 SSL_EXP_MASK. So, the original variable has to be used instead of the
8463 already masked variable.
8464 [Richard Levitte <levitte@stacken.kth.se>]
8466 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8467 [Richard Levitte <levitte@stacken.kth.se>]
8469 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8470 from `int' to `unsigned int' because it's a length and initialized by
8471 EVP_DigestFinal() which expects an `unsigned int *'.
8472 [Richard Levitte <levitte@stacken.kth.se>]
8474 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8475 script. Instead use the usual Shell->Perl transition trick.
8476 [Ralf S. Engelschall]
8478 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8479 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8480 -noout -modulus' as it's already the case for `openssl rsa -noout
8481 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8482 currently the public key is printed (a decision which was already done by
8483 `openssl dsa -modulus' in the past) which serves a similar purpose.
8484 Additionally the NO_RSA no longer completely removes the whole -modulus
8485 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8487 [Ralf S. Engelschall]
8489 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8490 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8491 [Arne Ansper <arne@ats.cyber.ee>]
8493 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8494 to be added. Now both 'req' and 'ca' can use new objects defined in the
8498 *) Add cool BIO that does syslog (or event log on NT).
8499 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8501 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8502 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8503 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8504 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8507 *) Add preliminary config info for new extension code.
8510 *) Make RSA_NO_PADDING really use no padding.
8511 [Ulf Moeller <ulf@fitug.de>]
8513 *) Generate errors when private/public key check is done.
8516 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8517 for some CRL extensions and new objects added.
8520 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8521 key usage extension and fuller support for authority key id.
8524 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8525 padding method for RSA, which is recommended for new applications in PKCS
8526 #1 v2.0 (RFC 2437, October 1998).
8527 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8528 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8529 against Bleichbacher's attack on RSA.
8530 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8533 *) Updates to the new SSL compression code
8534 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8536 *) Fix so that the version number in the master secret, when passed
8537 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8538 (because the server will not accept higher), that the version number
8539 is 0x03,0x01, not 0x03,0x00
8540 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8542 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8543 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8544 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8547 *) Support for RAW extensions where an arbitrary extension can be
8548 created by including its DER encoding. See apps/openssl.cnf for
8552 *) Make sure latest Perl versions don't interpret some generated C array
8553 code as Perl array code in the crypto/err/err_genc.pl script.
8554 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8556 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8557 not many people have the assembler. Various Win32 compilation fixes and
8558 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8562 *) Modify configure script 'Configure' to automatically create crypto/date.h
8563 file under Win32 and also build pem.h from pem.org. New script
8564 util/mkfiles.pl to create the MINFO file on environments that can't do a
8565 'make files': perl util/mkfiles.pl >MINFO should work.
8568 *) Major rework of DES function declarations, in the pursuit of correctness
8569 and purity. As a result, many evil casts evaporated, and some weirdness,
8570 too. You may find this causes warnings in your code. Zapping your evil
8571 casts will probably fix them. Mostly.
8574 *) Fix for a typo in asn1.h. Bug fix to object creation script
8575 obj_dat.pl. It considered a zero in an object definition to mean
8576 "end of object": none of the objects in objects.h have any zeros
8577 so it wasn't spotted.
8578 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8580 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8581 Masking (CBCM). In the absence of test vectors, the best I have been able
8582 to do is check that the decrypt undoes the encrypt, so far. Send me test
8583 vectors if you have them.
8586 *) Correct calculation of key length for export ciphers (too much space was
8587 allocated for null ciphers). This has not been tested!
8590 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8591 message is now correct (it understands "crypto" and "ssl" on its
8592 command line). There is also now an "update" option. This will update
8593 the util/ssleay.num and util/libeay.num files with any new functions.
8595 perl util/mkdef.pl crypto ssl update
8596 it will update them.
8599 *) Overhauled the Perl interface (perl/*):
8600 - ported BN stuff to OpenSSL's different BN library
8601 - made the perl/ source tree CVS-aware
8602 - renamed the package from SSLeay to OpenSSL (the files still contain
8603 their history because I've copied them in the repository)
8604 - removed obsolete files (the test scripts will be replaced
8605 by better Test::Harness variants in the future)
8606 [Ralf S. Engelschall]
8608 *) First cut for a very conservative source tree cleanup:
8609 1. merge various obsolete readme texts into doc/ssleay.txt
8610 where we collect the old documents and readme texts.
8611 2. remove the first part of files where I'm already sure that we no
8612 longer need them because of three reasons: either they are just temporary
8613 files which were left by Eric or they are preserved original files where
8614 I've verified that the diff is also available in the CVS via "cvs diff
8615 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8616 the crypto/md/ stuff).
8617 [Ralf S. Engelschall]
8619 *) More extension code. Incomplete support for subject and issuer alt
8620 name, issuer and authority key id. Change the i2v function parameters
8621 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8622 what that's for :-) Fix to ASN1 macro which messed up
8623 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8626 *) Preliminary support for ENUMERATED type. This is largely copied from the
8630 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8631 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8633 *) Make sure `make rehash' target really finds the `openssl' program.
8634 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8636 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8637 like to hear about it if this slows down other processors.
8640 *) Add CygWin32 platform information to Configure script.
8641 [Alan Batie <batie@aahz.jf.intel.com>]
8643 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8644 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8646 *) New program nseq to manipulate netscape certificate sequences
8649 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8653 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8654 but the BN code had some problems that would cause failures when
8655 doing certificate verification and some other functions.
8656 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8658 *) Add ASN1 and PEM code to support netscape certificate sequences.
8661 *) Add ASN1 and PEM code to support netscape certificate sequences.
8664 *) Add several PKIX and private extended key usage OIDs.
8667 *) Modify the 'ca' program to handle the new extension code. Modify
8668 openssl.cnf for new extension format, add comments.
8671 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8672 and add a sample to openssl.cnf so req -x509 now adds appropriate
8676 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8677 error code, add initial support to X509_print() and x509 application.
8680 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8681 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8682 stuff is currently isolated and isn't even compiled yet.
8685 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8686 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8687 Removed the versions check from X509 routines when loading extensions:
8688 this allows certain broken certificates that don't set the version
8689 properly to be processed.
8692 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8693 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8694 can still be regenerated with "make depend".
8697 *) Spelling mistake in C version of CAST-128.
8698 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8700 *) Changes to the error generation code. The perl script err-code.pl
8701 now reads in the old error codes and retains the old numbers, only
8702 adding new ones if necessary. It also only changes the .err files if new
8703 codes are added. The makefiles have been modified to only insert errors
8704 when needed (to avoid needlessly modifying header files). This is done
8705 by only inserting errors if the .err file is newer than the auto generated
8706 C file. To rebuild all the error codes from scratch (the old behaviour)
8707 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8708 or delete all the .err files.
8711 *) CAST-128 was incorrectly implemented for short keys. The C version has
8712 been fixed, but is untested. The assembler versions are also fixed, but
8713 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8714 to regenerate it if needed.
8715 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8716 Hagino <itojun@kame.net>]
8718 *) File was opened incorrectly in randfile.c.
8719 [Ulf Möller <ulf@fitug.de>]
8721 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8722 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8723 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8724 al: it's just almost always a UTCTime. Note this patch adds new error
8725 codes so do a "make errors" if there are problems.
8728 *) Correct Linux 1 recognition in config.
8729 [Ulf Möller <ulf@fitug.de>]
8731 *) Remove pointless MD5 hash when using DSA keys in ca.
8732 [Anonymous <nobody@replay.com>]
8734 *) Generate an error if given an empty string as a cert directory. Also
8735 generate an error if handed NULL (previously returned 0 to indicate an
8736 error, but didn't set one).
8737 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8739 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8742 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8743 parameters. This was causing a warning which killed off the Win32 compile.
8746 *) Remove C++ style comments from crypto/bn/bn_local.h.
8747 [Neil Costigan <neil.costigan@celocom.com>]
8749 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8750 based on a text string, looking up short and long names and finally
8751 "dot" format. The "dot" format stuff didn't work. Added new function
8752 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8753 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8754 OID is not part of the table.
8757 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8758 X509_LOOKUP_by_alias().
8761 *) Sort openssl functions by name.
8764 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8765 encryption from sample DSA keys (in case anyone is interested the password
8769 *) Make _all_ *_free functions accept a NULL pointer.
8770 [Frans Heymans <fheymans@isaserver.be>]
8772 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8774 [Anonymous <nobody@replay.com>]
8776 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8777 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8779 *) Don't blow it for numeric -newkey arguments to apps/req.
8780 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8782 *) Temp key "for export" tests were wrong in s3_srvr.c.
8783 [Anonymous <nobody@replay.com>]
8785 *) Add prototype for temp key callback functions
8786 SSL_CTX_set_tmp_{rsa,dh}_callback().
8789 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8790 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8793 *) X509_name_add_entry() freed the wrong thing after an error.
8794 [Arne Ansper <arne@ats.cyber.ee>]
8796 *) rsa_eay.c would attempt to free a NULL context.
8797 [Arne Ansper <arne@ats.cyber.ee>]
8799 *) BIO_s_socket() had a broken should_retry() on Windoze.
8800 [Arne Ansper <arne@ats.cyber.ee>]
8802 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8803 [Arne Ansper <arne@ats.cyber.ee>]
8805 *) Make sure the already existing X509_STORE->depth variable is initialized
8806 in X509_STORE_new(), but document the fact that this variable is still
8807 unused in the certificate verification process.
8808 [Ralf S. Engelschall]
8810 *) Fix the various library and apps files to free up pkeys obtained from
8811 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8814 *) Fix reference counting in X509_PUBKEY_get(). This makes
8815 demos/maurice/example2.c work, amongst others, probably.
8816 [Steve Henson and Ben Laurie]
8818 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8819 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8820 are no longer created. This way we have a single and consistent command
8821 line interface `openssl <command>', similar to `cvs <command>'.
8822 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8824 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8825 BIT STRING wrapper always have zero unused bits.
8828 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8831 *) Make the top-level INSTALL documentation easier to understand.
8834 *) Makefiles updated to exit if an error occurs in a sub-directory
8835 make (including if user presses ^C) [Paul Sutton]
8837 *) Make Montgomery context stuff explicit in RSA data structure.
8840 *) Fix build order of pem and err to allow for generated pem.h.
8843 *) Fix renumbering bug in X509_NAME_delete_entry().
8846 *) Enhanced the err-ins.pl script so it makes the error library number
8847 global and can add a library name. This is needed for external ASN1 and
8848 other error libraries.
8851 *) Fixed sk_insert which never worked properly.
8854 *) Fix ASN1 macros so they can handle indefinite length construted
8855 EXPLICIT tags. Some non standard certificates use these: they can now
8859 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8860 into a single doc/ssleay.txt bundle. This way the information is still
8861 preserved but no longer messes up this directory. Now it's new room for
8862 the new set of documenation files.
8863 [Ralf S. Engelschall]
8865 *) SETs were incorrectly DER encoded. This was a major pain, because they
8866 shared code with SEQUENCEs, which aren't coded the same. This means that
8867 almost everything to do with SETs or SEQUENCEs has either changed name or
8868 number of arguments.
8869 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8871 *) Fix test data to work with the above.
8874 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8875 was already fixed by Eric for 0.9.1 it seems.
8876 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8878 *) Autodetect FreeBSD3.
8881 *) Fix various bugs in Configure. This affects the following platforms:
8885 unixware-2.0-pentium
8889 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8890 before they are needed.
8893 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8897 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8899 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8900 changed SSLeay to OpenSSL in version strings.
8901 [Ralf S. Engelschall]
8903 *) Some fixups to the top-level documents.
8906 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8907 because the symlink to include/ was missing.
8908 [Ralf S. Engelschall]
8910 *) Incorporated the popular no-RSA/DSA-only patches
8911 which allow to compile a RSA-free SSLeay.
8912 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8914 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8915 when "ssleay" is still not found.
8916 [Ralf S. Engelschall]
8918 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8919 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8921 *) Updated the README file.
8922 [Ralf S. Engelschall]
8924 *) Added various .cvsignore files in the CVS repository subdirs
8925 to make a "cvs update" really silent.
8926 [Ralf S. Engelschall]
8928 *) Recompiled the error-definition header files and added
8929 missing symbols to the Win32 linker tables.
8930 [Ralf S. Engelschall]
8932 *) Cleaned up the top-level documents;
8933 o new files: CHANGES and LICENSE
8934 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8935 o merged COPYRIGHT into LICENSE
8936 o removed obsolete TODO file
8937 o renamed MICROSOFT to INSTALL.W32
8938 [Ralf S. Engelschall]
8940 *) Removed dummy files from the 0.9.1b source tree:
8941 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8942 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8943 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8944 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8945 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8946 [Ralf S. Engelschall]
8948 *) Added various platform portability fixes.
8951 *) The Genesis of the OpenSSL rpject:
8952 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8953 Young and Tim J. Hudson created while they were working for C2Net until
8955 [The OpenSSL Project]
8958 Changes between 0.9.0b and 0.9.1b [not released]
8960 *) Updated a few CA certificates under certs/
8963 *) Changed some BIGNUM api stuff.
8966 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8967 DGUX x86, Linux Alpha, etc.
8970 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8971 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8975 *) Add -strparse option to asn1pars program which parses nested
8977 [Dr Stephen Henson <shenson@bigfoot.com>]
8979 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8982 *) DSA fix for "ca" program.
8985 *) Added "-genkey" option to "dsaparam" program.
8988 *) Added RIPE MD160 (rmd160) message digest.
8991 *) Added -a (all) option to "ssleay version" command.
8994 *) Added PLATFORM define which is the id given to Configure.
8997 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9000 *) Extended the ASN.1 parser routines.
9003 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9006 *) Added a BN_CTX to the BN library.
9009 *) Fixed the weak key values in DES library
9012 *) Changed API in EVP library for cipher aliases.
9015 *) Added support for RC2/64bit cipher.
9018 *) Converted the lhash library to the crypto/mem.c functions.
9021 *) Added more recognized ASN.1 object ids.
9024 *) Added more RSA padding checks for SSL/TLS.
9027 *) Added BIO proxy/filter functionality.
9030 *) Added extra_certs to SSL_CTX which can be used
9031 send extra CA certificates to the client in the CA cert chain sending
9032 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9035 *) Now Fortezza is denied in the authentication phase because
9036 this is key exchange mechanism is not supported by SSLeay at all.
9039 *) Additional PKCS1 checks.
9042 *) Support the string "TLSv1" for all TLS v1 ciphers.
9045 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9046 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9049 *) Fixed a few memory leaks.
9052 *) Fixed various code and comment typos.
9055 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9056 bytes sent in the client random.
9057 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob