5 Changes between 0.9.8j and 0.9.9 [xx XXX xxxx]
7 *) Update Gost ENGINE to support parameter files.
8 [Victor B. Wagner <vitus@cryptocom.ru>]
10 *) Support GeneralizedTime in ca utility.
11 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
13 *) Enhance the hash format used for certificate directory links. The new
14 form uses the canonical encoding (meaning equivalent names will work
15 even if they aren't identical) and uses SHA1 instead of MD5. This form
16 is incompatible with the older format and as a result c_rehash should
17 be used to rebuild symbolic links.
20 *) Make PKCS#8 the default write format for private keys, replacing the
21 traditional format. This form is standardised, more secure and doesn't
22 include an implicit MD5 dependency.
25 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
26 committed to OpenSSL should pass this lot as a minimum.
29 *) Add session ticket override functionality for use by EAP-FAST.
30 [Jouni Malinen <j@w1.fi>]
32 *) Modify HMAC functions to return a value. Since these can be implemented
33 in an ENGINE errors can occur.
36 *) Type-checked OBJ_bsearch_ex.
39 *) Type-checked OBJ_bsearch. Also some constification necessitated
40 by type-checking. Still to come: TXT_DB, bsearch(?),
41 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
45 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
46 seconds to a tm structure directly, instead of going through OS
47 specific date routines. This avoids any issues with OS routines such
48 as the year 2038 bug. New *_adj() functions for ASN1 time structures
49 and X509_time_adj_ex() to cover the extended range. The existing
50 X509_time_adj() is still usable and will no longer have any date issues.
53 *) Delta CRL support. New use deltas option which will attempt to locate
54 and search any appropriate delta CRLs available.
56 This work was sponsored by Google.
59 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
60 code and add additional score elements. Validate alternate CRL paths
61 as part of the CRL checking and indicate a new error "CRL path validation
62 error" in this case. Applications wanting additional details can use
63 the verify callback and check the new "parent" field. If this is not
64 NULL CRL path validation is taking place. Existing applications wont
65 see this because it requires extended CRL support which is off by
68 This work was sponsored by Google.
71 *) Support for freshest CRL extension.
73 This work was sponsored by Google.
76 *) Initial indirect CRL support. Currently only supported in the CRLs
77 passed directly and not via lookup. Process certificate issuer
78 CRL entry extension and lookup CRL entries by bother issuer name
79 and serial number. Check and process CRL issuer entry in IDP extension.
81 This work was sponsored by Google.
84 *) Add support for distinct certificate and CRL paths. The CRL issuer
85 certificate is validated separately in this case. Only enabled if
86 an extended CRL support flag is set: this flag will enable additional
87 CRL functionality in future.
89 This work was sponsored by Google.
92 *) Add support for policy mappings extension.
94 This work was sponsored by Google.
97 *) Fixes to pathlength constraint, self issued certificate handling,
98 policy processing to align with RFC3280 and PKITS tests.
100 This work was sponsored by Google.
103 *) Support for name constraints certificate extension. DN, email, DNS
104 and URI types are currently supported.
106 This work was sponsored by Google.
109 *) To cater for systems that provide a pointer-based thread ID rather
110 than numeric, deprecate the current numeric thread ID mechanism and
111 replace it with a structure and associated callback type. This
112 mechanism allows a numeric "hash" to be extracted from a thread ID in
113 either case, and on platforms where pointers are larger than 'long',
114 mixing is done to help ensure the numeric 'hash' is usable even if it
115 can't be guaranteed unique. The default mechanism is to use "&errno"
116 as a pointer-based thread ID to distinguish between threads.
118 Applications that want to provide their own thread IDs should now use
119 CRYPTO_THREADID_set_callback() to register a callback that will call
120 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
122 Note that ERR_remove_state() is now deprecated, because it is tied
123 to the assumption that thread IDs are numeric. ERR_remove_state(0)
124 to free the current thread's error state should be replaced by
125 ERR_remove_thread_state(NULL).
127 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
128 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
129 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
130 application was previously providing a numeric thread callback that
131 was inappropriate for distinguishing threads, then uniqueness might
132 have been obtained with &errno that happened immediately in the
133 intermediate development versions of OpenSSL; this is no longer the
134 case, the numeric thread callback will now override the automatic use
136 [Geoff Thorpe, with help from Bodo Moeller]
138 *) Initial support for different CRL issuing certificates. This covers a
139 simple case where the self issued certificates in the chain exist and
140 the real CRL issuer is higher in the existing chain.
142 This work was sponsored by Google.
145 *) Removed effectively defunct crypto/store from the build.
148 *) Revamp of STACK to provide stronger type-checking. Still to come:
149 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
150 ASN1_STRING, CONF_VALUE.
153 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
154 RAM on SSL connections. This option can save about 34k per idle SSL.
157 *) Revamp of LHASH to provide stronger type-checking. Still to come:
158 STACK, TXT_DB, bsearch, qsort.
161 *) Initial support for Cryptographic Message Syntax (aka CMS) based
162 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
163 support for data, signedData, compressedData, digestedData and
164 encryptedData, envelopedData types included. Scripts to check against
165 RFC4134 examples draft and interop and consistency checks of many
166 content types and variants.
169 *) Add options to enc utility to support use of zlib compression BIO.
172 *) Extend mk1mf to support importing of options and assembly language
173 files from Configure script, currently only included in VC-WIN32.
174 The assembly language rules can now optionally generate the source
175 files from the associated perl scripts.
178 *) Implement remaining functionality needed to support GOST ciphersuites.
179 Interop testing has been performed using CryptoPro implementations.
180 [Victor B. Wagner <vitus@cryptocom.ru>]
182 *) s390x assembler pack.
185 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
189 *) Implement Opaque PRF Input TLS extension as specified in
190 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
191 official specification yet and no extension type assignment by
192 IANA exists, this extension (for now) will have to be explicitly
193 enabled when building OpenSSL by providing the extension number
194 to use. For example, specify an option
196 -DTLSEXT_TYPE_opaque_prf_input=0x9527
198 to the "config" or "Configure" script to enable the extension,
199 assuming extension number 0x9527 (which is a completely arbitrary
200 and unofficial assignment based on the MD5 hash of the Internet
201 Draft). Note that by doing so, you potentially lose
202 interoperability with other TLS implementations since these might
203 be using the same extension number for other purposes.
205 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
206 opaque PRF input value to use in the handshake. This will create
207 an interal copy of the length-'len' string at 'src', and will
208 return non-zero for success.
210 To get more control and flexibility, provide a callback function
213 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
214 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
218 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
221 Callback function 'cb' will be called in handshakes, and is
222 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
223 Argument 'arg' is for application purposes (the value as given to
224 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
225 be provided to the callback function). The callback function
226 has to return non-zero to report success: usually 1 to use opaque
227 PRF input just if possible, or 2 to enforce use of the opaque PRF
228 input. In the latter case, the library will abort the handshake
229 if opaque PRF input is not successfully negotiated.
231 Arguments 'peerinput' and 'len' given to the callback function
232 will always be NULL and 0 in the case of a client. A server will
233 see the client's opaque PRF input through these variables if
234 available (NULL and 0 otherwise). Note that if the server
235 provides an opaque PRF input, the length must be the same as the
236 length of the client's opaque PRF input.
238 Note that the callback function will only be called when creating
239 a new session (session resumption can resume whatever was
240 previously negotiated), and will not be called in SSL 2.0
241 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
242 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
243 for applications that need to enforce opaque PRF input.
247 *) Update ssl code to support digests other than SHA1+MD5 for handshake
250 [Victor B. Wagner <vitus@cryptocom.ru>]
252 *) Add RFC4507 support to OpenSSL. This includes the corrections in
253 RFC4507bis. The encrypted ticket format is an encrypted encoded
254 SSL_SESSION structure, that way new session features are automatically
257 If a client application caches session in an SSL_SESSION structure
258 support is transparent because tickets are now stored in the encoded
261 The SSL_CTX structure automatically generates keys for ticket
262 protection in servers so again support should be possible
263 with no application modification.
265 If a client or server wishes to disable RFC4507 support then the option
266 SSL_OP_NO_TICKET can be set.
268 Add a TLS extension debugging callback to allow the contents of any client
269 or server extensions to be examined.
271 This work was sponsored by Google.
274 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
275 OpenSSL should now compile cleanly on gcc 4.2
276 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
278 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
279 support including streaming MAC support: this is required for GOST
281 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
283 *) Add option -stream to use PKCS#7 streaming in smime utility. New
284 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
285 to output in BER and PEM format.
288 *) Experimental support for use of HMAC via EVP_PKEY interface. This
289 allows HMAC to be handled via the EVP_DigestSign*() interface. The
290 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
291 ENGINE support for HMAC keys which are unextractable. New -mac and
292 -macopt options to dgst utility.
295 *) New option -sigopt to dgst utility. Update dgst to use
296 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
297 alternative signing paramaters such as X9.31 or PSS in the dgst
301 *) Change ssl_cipher_apply_rule(), the internal function that does
302 the work each time a ciphersuite string requests enabling
303 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
304 removing ("!foo+bar") a class of ciphersuites: Now it maintains
305 the order of disabled ciphersuites such that those ciphersuites
306 that most recently went from enabled to disabled not only stay
307 in order with respect to each other, but also have higher priority
308 than other disabled ciphersuites the next time ciphersuites are
311 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
312 the same ciphersuites as with "HIGH" alone, but in a specific
313 order where the PSK ciphersuites come first (since they are the
314 most recently disabled ciphersuites when "HIGH" is parsed).
316 Also, change ssl_create_cipher_list() (using this new
317 funcionality) such that between otherwise identical
318 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
322 *) Change ssl_create_cipher_list() so that it automatically
323 arranges the ciphersuites in reasonable order before starting
324 to process the rule string. Thus, the definition for "DEFAULT"
325 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
326 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
327 This makes it much easier to arrive at a reasonable default order
328 in applications for which anonymous ciphers are OK (meaning
329 that you can't actually use DEFAULT).
330 [Bodo Moeller; suggested by Victor Duchovni]
332 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
333 processing) into multiple integers instead of setting
334 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
335 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
336 (These masks as well as the individual bit definitions are hidden
337 away into the non-exported interface ssl/ssl_locl.h, so this
338 change to the definition of the SSL_CIPHER structure shouldn't
339 affect applications.) This give us more bits for each of these
340 categories, so there is no longer a need to coagulate AES128 and
341 AES256 into a single algorithm bit, and to coagulate Camellia128
342 and Camellia256 into a single algorithm bit, which has led to all
345 Thus, among other things, the kludge introduced in 0.9.7m and
346 0.9.8e for masking out AES256 independently of AES128 or masking
347 out Camellia256 independently of AES256 is not needed here in 0.9.9.
349 With the change, we also introduce new ciphersuite aliases that
350 so far were missing: "AES128", "AES256", "CAMELLIA128", and
354 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
355 Use the leftmost N bytes of the signature input if the input is
356 larger than the prime q (with N being the size in bytes of q).
359 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
360 it yet and it is largely untested.
363 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
366 *) Initial incomplete changes to avoid need for function casts in OpenSSL
367 some compilers (gcc 4.2 and later) reject their use. Safestack is
368 reimplemented. Update ASN1 to avoid use of legacy functions.
371 *) Win32/64 targets are linked with Winsock2.
374 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
375 to external functions. This can be used to increase CRL handling
376 efficiency especially when CRLs are very large by (for example) storing
377 the CRL revoked certificates in a database.
380 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
381 new CRLs added to a directory can be used. New command line option
382 -verify_return_error to s_client and s_server. This causes real errors
383 to be returned by the verify callback instead of carrying on no matter
384 what. This reflects the way a "real world" verify callback would behave.
387 *) GOST engine, supporting several GOST algorithms and public key formats.
388 Kindly donated by Cryptocom.
391 *) Partial support for Issuing Distribution Point CRL extension. CRLs
392 partitioned by DP are handled but no indirect CRL or reason partitioning
393 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
394 selected via a scoring technique which handles IDP and AKID in CRLs.
397 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
398 will ultimately be used for all verify operations: this will remove the
399 X509_STORE dependency on certificate verification and allow alternative
400 lookup methods. X509_STORE based implementations of these two callbacks.
403 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
404 Modify get_crl() to find a valid (unexpired) CRL if possible.
407 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
408 this would be called X509_CRL_cmp() but that name is already used by
409 a function that just compares CRL issuer names. Cache several CRL
410 extensions in X509_CRL structure and cache CRLDP in X509.
413 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
414 this maps equivalent X509_NAME structures into a consistent structure.
415 Name comparison can then be performed rapidly using memcmp().
418 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
422 *) Allow digests to supply their own micalg string for S/MIME type using
423 the ctrl EVP_MD_CTRL_MICALG.
426 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
427 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
428 ctrl. It can then customise the structure before and/or after signing
432 *) New function OBJ_add_sigid() to allow application defined signature OIDs
433 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
434 to free up any added signature OIDs.
437 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
438 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
439 digest and cipher tables. New options added to openssl utility:
440 list-message-digest-algorithms and list-cipher-algorithms.
443 *) Change the array representation of binary polynomials: the list
444 of degrees of non-zero coefficients is now terminated with -1.
445 Previously it was terminated with 0, which was also part of the
446 value; thus, the array representation was not applicable to
447 polynomials where t^0 has coefficient zero. This change makes
448 the array representation useful in a more general context.
451 *) Various modifications and fixes to SSL/TLS cipher string
452 handling. For ECC, the code now distinguishes between fixed ECDH
453 with RSA certificates on the one hand and with ECDSA certificates
454 on the other hand, since these are separate ciphersuites. The
455 unused code for Fortezza ciphersuites has been removed.
457 For consistency with EDH, ephemeral ECDH is now called "EECDH"
458 (not "ECDHE"). For consistency with the code for DH
459 certificates, use of ECDH certificates is now considered ECDH
460 authentication, not RSA or ECDSA authentication (the latter is
461 merely the CA's signing algorithm and not actively used in the
464 The temporary ciphersuite alias "ECCdraft" is no longer
465 available, and ECC ciphersuites are no longer excluded from "ALL"
466 and "DEFAULT". The following aliases now exist for RFC 4492
467 ciphersuites, most of these by analogy with the DH case:
469 kECDHr - ECDH cert, signed with RSA
470 kECDHe - ECDH cert, signed with ECDSA
471 kECDH - ECDH cert (signed with either RSA or ECDSA)
472 kEECDH - ephemeral ECDH
473 ECDH - ECDH cert or ephemeral ECDH
479 AECDH - anonymous ECDH
480 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
484 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
485 Use correct micalg parameters depending on digest(s) in signed message.
488 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
489 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
492 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
493 an engine to register a method. Add ENGINE lookups for methods and
494 functional reference processing.
497 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
498 EVP_{Sign,Verify}* which allow an application to customise the signature
502 *) New -resign option to smime utility. This adds one or more signers
503 to an existing PKCS#7 signedData structure. Also -md option to use an
504 alternative message digest algorithm for signing.
507 *) Tidy up PKCS#7 routines and add new functions to make it easier to
508 create PKCS7 structures containing multiple signers. Update smime
509 application to support multiple signers.
512 *) New -macalg option to pkcs12 utility to allow setting of an alternative
516 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
517 Reorganize PBE internals to lookup from a static table using NIDs,
518 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
519 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
520 PRF which will be automatically used with PBES2.
523 *) Replace the algorithm specific calls to generate keys in "req" with the
527 *) Update PKCS#7 enveloped data routines to use new API. This is now
528 supported by any public key method supporting the encrypt operation. A
529 ctrl is added to allow the public key algorithm to examine or modify
530 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
534 *) Add a ctrl to asn1 method to allow a public key algorithm to express
535 a default digest type to use. In most cases this will be SHA1 but some
536 algorithms (such as GOST) need to specify an alternative digest. The
537 return value indicates how strong the prefernce is 1 means optional and
538 2 is mandatory (that is it is the only supported type). Modify
539 ASN1_item_sign() to accept a NULL digest argument to indicate it should
540 use the default md. Update openssl utilities to use the default digest
541 type for signing if it is not explicitly indicated.
544 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
545 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
546 signing method from the key type. This effectively removes the link
547 between digests and public key types.
550 *) Add an OID cross reference table and utility functions. Its purpose is to
551 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
552 rsaEncryption. This will allow some of the algorithm specific hackery
553 needed to use the correct OID to be removed.
556 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
557 structures for PKCS7_sign(). They are now set up by the relevant public
561 *) Add provisional EC pkey method with support for ECDSA and ECDH.
564 *) Add support for key derivation (agreement) in the API, DH method and
568 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
569 public and private key formats. As a side effect these add additional
570 command line functionality not previously available: DSA signatures can be
571 generated and verified using pkeyutl and DH key support and generation in
576 [Oliver Tappe <zooey@hirschkaefer.de>]
578 *) New make target "install_html_docs" installs HTML renditions of the
580 [Oliver Tappe <zooey@hirschkaefer.de>]
582 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
583 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
584 support key and parameter generation and add initial key generation
585 functionality for RSA.
588 *) Add functions for main EVP_PKEY_method operations. The undocumented
589 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
590 EVP_PKEY_{encrypt,decrypt}_old.
593 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
594 key API, doesn't do much yet.
597 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
598 public key algorithms. New option to openssl utility:
599 "list-public-key-algorithms" to print out info.
602 *) Implement the Supported Elliptic Curves Extension for
603 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
606 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
607 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
610 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
611 utilities such as rsa, dsa, dsaparam etc except they process any key
615 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
616 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
617 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
621 *) Initial support for pluggable public key ASN1.
622 De-spaghettify the public key ASN1 handling. Move public and private
623 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
624 algorithm specific handling to a single module within the relevant
625 algorithm directory. Add functions to allow (near) opaque processing
626 of public and private key structures.
629 *) Implement the Supported Point Formats Extension for
630 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
633 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
634 for the psk identity [hint] and the psk callback functions to the
635 SSL_SESSION, SSL and SSL_CTX structure.
638 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
642 SSL_CTX_use_psk_identity_hint
643 SSL_get_psk_identity_hint
645 SSL_use_psk_identity_hint
647 [Mika Kousa and Pasi Eronen of Nokia Corporation]
649 *) Add RFC 3161 compliant time stamp request creation, response generation
650 and response verification functionality.
651 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
653 *) Add initial support for TLS extensions, specifically for the server_name
654 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
655 have new members for a host name. The SSL data structure has an
656 additional member SSL_CTX *initial_ctx so that new sessions can be
657 stored in that context to allow for session resumption, even after the
658 SSL has been switched to a new SSL_CTX in reaction to a client's
659 server_name extension.
661 New functions (subject to change):
664 SSL_get_servername_type()
667 New CTRL codes and macros (subject to change):
669 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
670 - SSL_CTX_set_tlsext_servername_callback()
671 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
672 - SSL_CTX_set_tlsext_servername_arg()
673 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
675 openssl s_client has a new '-servername ...' option.
677 openssl s_server has new options '-servername_host ...', '-cert2 ...',
678 '-key2 ...', '-servername_fatal' (subject to change). This allows
679 testing the HostName extension for a specific single host name ('-cert'
680 and '-key' remain fallbacks for handshakes without HostName
681 negotiation). If the unrecogninzed_name alert has to be sent, this by
682 default is a warning; it becomes fatal with the '-servername_fatal'
685 [Peter Sylvester, Remy Allais, Christophe Renou]
687 *) Whirlpool hash implementation is added.
690 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
691 bn(64,32). Because of instruction set limitations it doesn't have
692 any negative impact on performance. This was done mostly in order
693 to make it possible to share assembler modules, such as bn_mul_mont
694 implementations, between 32- and 64-bit builds without hassle.
697 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
698 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
702 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
703 dedicated Montgomery multiplication procedure, is introduced.
704 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
705 "64-bit" performance on certain 32-bit targets.
708 *) New option SSL_OP_NO_COMP to disable use of compression selectively
709 in SSL structures. New SSL ctrl to set maximum send fragment size.
710 Save memory by seeting the I/O buffer sizes dynamically instead of
711 using the maximum available value.
714 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
715 in addition to the text details.
718 *) Very, very preliminary EXPERIMENTAL support for printing of general
719 ASN1 structures. This currently produces rather ugly output and doesn't
720 handle several customised structures at all.
723 *) Integrated support for PVK file format and some related formats such
724 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
725 these in the 'rsa' and 'dsa' utilities.
728 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
731 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
732 place for the (very old) "NETSCAPE" format certificates which are now
733 handled using new ASN1 code equivalents.
736 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
737 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
738 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
741 *) Modify CRL distribution points extension code to print out previously
742 unsupported fields. Enhance extension setting code to allow setting of
746 *) Add print and set support for Issuing Distribution Point CRL extension.
749 *) Change 'Configure' script to enable Camellia by default.
752 Changes between 0.9.8j and 0.9.8k [xx XXX xxxx]
754 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
755 checked correctly. This would allow some invalid signed attributes to
756 appear to verify correctly. (CVE-2009-0591)
757 [Ivan Nestlerode <inestlerode@us.ibm.com>]
759 *) Reject UniversalString and BMPString types with invalid lengths. This
760 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
761 a legal length. (CVE-2009-0590)
764 *) Set S/MIME signing as the default purpose rather than setting it
765 unconditionally. This allows applications to override it at the store
769 *) Permit restricted recursion of ASN1 strings. This is needed in practice
770 to handle some structures.
773 *) Improve efficiency of mem_gets: don't search whole buffer each time
775 [Jeremy Shapiro <jnshapir@us.ibm.com>]
777 *) New -hex option for openssl rand.
780 *) Print out UTF8String and NumericString when parsing ASN1.
783 *) Support NumericString type for name components.
786 *) Allow CC in the environment to override the automatically chosen
787 compiler. Note that nothing is done to ensure flags work with the
791 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
793 *) Properly check EVP_VerifyFinal() and similar return values
795 [Ben Laurie, Bodo Moeller, Google Security Team]
797 *) Enable TLS extensions by default.
800 *) Allow the CHIL engine to be loaded, whether the application is
801 multithreaded or not. (This does not release the developer from the
802 obligation to set up the dynamic locking callbacks.)
803 [Sander Temme <sander@temme.net>]
805 *) Use correct exit code if there is an error in dgst command.
806 [Steve Henson; problem pointed out by Roland Dirlewanger]
808 *) Tweak Configure so that you need to say "experimental-jpake" to enable
809 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
812 *) Add experimental JPAKE support, including demo authentication in
813 s_client and s_server.
816 *) Set the comparison function in v3_addr_canonize().
817 [Rob Austein <sra@hactrn.net>]
819 *) Add support for XMPP STARTTLS in s_client.
820 [Philip Paeps <philip@freebsd.org>]
822 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
823 to ensure that even with this option, only ciphersuites in the
824 server's preference list will be accepted. (Note that the option
825 applies only when resuming a session, so the earlier behavior was
826 just about the algorithm choice for symmetric cryptography.)
829 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
831 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
832 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
835 *) The fix in 0.9.8c that supposedly got rid of unsafe
836 double-checked locking was incomplete for RSA blinding,
837 addressing just one layer of what turns out to have been
838 doubly unsafe triple-checked locking.
840 So now fix this for real by retiring the MONT_HELPER macro
841 in crypto/rsa/rsa_eay.c.
843 [Bodo Moeller; problem pointed out by Marius Schilder]
845 *) Various precautionary measures:
847 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
849 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
850 (NB: This would require knowledge of the secret session ticket key
851 to exploit, in which case you'd be SOL either way.)
853 - Change bn_nist.c so that it will properly handle input BIGNUMs
854 outside the expected range.
856 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
859 [Neel Mehta, Bodo Moeller]
861 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
862 the load fails. Useful for distros.
863 [Ben Laurie and the FreeBSD team]
865 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
868 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
871 *) Expand ENGINE to support engine supplied SSL client certificate functions.
873 This work was sponsored by Logica.
876 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
877 keystores. Support for SSL/TLS client authentication too.
878 Not compiled unless enable-capieng specified to Configure.
880 This work was sponsored by Logica.
883 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
884 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
885 attribute creation routines such as certifcate requests and PKCS#12
889 Changes between 0.9.8g and 0.9.8h [28 May 2008]
891 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
892 handshake which could lead to a cilent crash as found using the
893 Codenomicon TLS test suite (CVE-2008-1672)
894 [Steve Henson, Mark Cox]
896 *) Fix double free in TLS server name extensions which could lead to
897 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
900 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
902 Clear the error queue to ensure that error entries left from
903 older function calls do not interfere with the correct operation.
904 [Lutz Jaenicke, Erik de Castro Lopo]
906 *) Remove root CA certificates of commercial CAs:
908 The OpenSSL project does not recommend any specific CA and does not
909 have any policy with respect to including or excluding any CA.
910 Therefore it does not make any sense to ship an arbitrary selection
911 of root CA certificates with the OpenSSL software.
914 *) RSA OAEP patches to fix two separate invalid memory reads.
915 The first one involves inputs when 'lzero' is greater than
916 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
917 before the beginning of from). The second one involves inputs where
918 the 'db' section contains nothing but zeroes (there is a one-byte
919 invalid read after the end of 'db').
920 [Ivan Nestlerode <inestlerode@us.ibm.com>]
922 *) Partial backport from 0.9.9-dev:
924 Introduce bn_mul_mont (dedicated Montgomery multiplication
925 procedure) as a candidate for BIGNUM assembler implementation.
926 While 0.9.9-dev uses assembler for various architectures, only
927 x86_64 is available by default here in the 0.9.8 branch, and
928 32-bit x86 is available through a compile-time setting.
930 To try the 32-bit x86 assembler implementation, use Configure
931 option "enable-montasm" (which exists only for this backport).
933 As "enable-montasm" for 32-bit x86 disclaims code stability
934 anyway, in this constellation we activate additional code
935 backported from 0.9.9-dev for further performance improvements,
936 namely BN_from_montgomery_word. (To enable this otherwise,
937 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
939 [Andy Polyakov (backport partially by Bodo Moeller)]
941 *) Add TLS session ticket callback. This allows an application to set
942 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
943 values. This is useful for key rollover for example where several key
944 sets may exist with different names.
947 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
948 This was broken until now in 0.9.8 releases, such that the only way
949 a registered ENGINE could be used (assuming it initialises
950 successfully on the host) was to explicitly set it as the default
951 for the relevant algorithms. This is in contradiction with 0.9.7
952 behaviour and the documentation. With this fix, when an ENGINE is
953 registered into a given algorithm's table of implementations, the
954 'uptodate' flag is reset so that auto-discovery will be used next
955 time a new context for that algorithm attempts to select an
957 [Ian Lister (tweaked by Geoff Thorpe)]
959 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
960 implemention in the following ways:
962 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
965 Lack of BER streaming support means one pass streaming processing is
966 only supported if data is detached: setting the streaming flag is
967 ignored for embedded content.
969 CMS support is disabled by default and must be explicitly enabled
970 with the enable-cms configuration option.
973 *) Update the GMP engine glue to do direct copies between BIGNUM and
974 mpz_t when openssl and GMP use the same limb size. Otherwise the
975 existing "conversion via a text string export" trick is still used.
976 [Paul Sheer <paulsheer@gmail.com>]
978 *) Zlib compression BIO. This is a filter BIO which compressed and
979 uncompresses any data passed through it.
982 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
983 RFC3394 compatible AES key wrapping.
986 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
987 sets string data without copying. X509_ALGOR_set0() and
988 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
989 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
990 from an X509_ATTRIBUTE structure optionally checking it occurs only
991 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
995 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
996 to get the expected BN_FLG_CONSTTIME behavior.
997 [Bodo Moeller (Google)]
1001 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1002 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1003 - added some more tests to do_tests.pl
1004 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1005 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1006 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1007 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1008 - various changes to netware.pl to enable gcc-cross builds on Win32
1010 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1011 - various changes to fix missing prototype warnings
1012 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1013 - added AES, WHIRLPOOL and CPUID assembler code to build files
1014 - added missing AES assembler make rules to mk1mf.pl
1015 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1016 [Guenter Knauf <eflash@gmx.net>]
1018 *) Implement certificate status request TLS extension defined in RFC3546.
1019 A client can set the appropriate parameters and receive the encoded
1020 OCSP response via a callback. A server can query the supplied parameters
1021 and set the encoded OCSP response in the callback. Add simplified examples
1022 to s_client and s_server.
1025 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1027 *) Fix various bugs:
1028 + Binary incompatibility of ssl_ctx_st structure
1029 + DTLS interoperation with non-compliant servers
1030 + Don't call get_session_cb() without proposed session
1031 + Fix ia64 assembler code
1032 [Andy Polyakov, Steve Henson]
1034 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1036 *) DTLS Handshake overhaul. There were longstanding issues with
1037 OpenSSL DTLS implementation, which were making it impossible for
1038 RFC 4347 compliant client to communicate with OpenSSL server.
1039 Unfortunately just fixing these incompatibilities would "cut off"
1040 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1041 server keeps tolerating non RFC compliant syntax. The opposite is
1042 not true, 0.9.8f client can not communicate with earlier server.
1043 This update even addresses CVE-2007-4995.
1046 *) Changes to avoid need for function casts in OpenSSL: some compilers
1047 (gcc 4.2 and later) reject their use.
1048 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1051 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1052 RFC4507bis. The encrypted ticket format is an encrypted encoded
1053 SSL_SESSION structure, that way new session features are automatically
1056 If a client application caches session in an SSL_SESSION structure
1057 support is transparent because tickets are now stored in the encoded
1060 The SSL_CTX structure automatically generates keys for ticket
1061 protection in servers so again support should be possible
1062 with no application modification.
1064 If a client or server wishes to disable RFC4507 support then the option
1065 SSL_OP_NO_TICKET can be set.
1067 Add a TLS extension debugging callback to allow the contents of any client
1068 or server extensions to be examined.
1070 This work was sponsored by Google.
1073 *) Add initial support for TLS extensions, specifically for the server_name
1074 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1075 have new members for a host name. The SSL data structure has an
1076 additional member SSL_CTX *initial_ctx so that new sessions can be
1077 stored in that context to allow for session resumption, even after the
1078 SSL has been switched to a new SSL_CTX in reaction to a client's
1079 server_name extension.
1081 New functions (subject to change):
1083 SSL_get_servername()
1084 SSL_get_servername_type()
1087 New CTRL codes and macros (subject to change):
1089 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1090 - SSL_CTX_set_tlsext_servername_callback()
1091 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1092 - SSL_CTX_set_tlsext_servername_arg()
1093 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1095 openssl s_client has a new '-servername ...' option.
1097 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1098 '-key2 ...', '-servername_fatal' (subject to change). This allows
1099 testing the HostName extension for a specific single host name ('-cert'
1100 and '-key' remain fallbacks for handshakes without HostName
1101 negotiation). If the unrecogninzed_name alert has to be sent, this by
1102 default is a warning; it becomes fatal with the '-servername_fatal'
1105 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1107 *) Add AES and SSE2 assembly language support to VC++ build.
1110 *) Mitigate attack on final subtraction in Montgomery reduction.
1113 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1114 (which previously caused an internal error).
1117 *) Squeeze another 10% out of IGE mode when in != out.
1120 *) AES IGE mode speedup.
1121 [Dean Gaudet (Google)]
1123 *) Add the Korean symmetric 128-bit cipher SEED (see
1124 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1125 add SEED ciphersuites from RFC 4162:
1127 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1128 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1129 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1130 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1132 To minimize changes between patchlevels in the OpenSSL 0.9.8
1133 series, SEED remains excluded from compilation unless OpenSSL
1134 is configured with 'enable-seed'.
1135 [KISA, Bodo Moeller]
1137 *) Mitigate branch prediction attacks, which can be practical if a
1138 single processor is shared, allowing a spy process to extract
1139 information. For detailed background information, see
1140 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1141 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1142 and Necessary Software Countermeasures"). The core of the change
1143 are new versions BN_div_no_branch() and
1144 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1145 respectively, which are slower, but avoid the security-relevant
1146 conditional branches. These are automatically called by BN_div()
1147 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1148 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1149 remove a conditional branch.
1151 BN_FLG_CONSTTIME is the new name for the previous
1152 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1153 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1154 in the exponent causes BN_mod_exp_mont() to use the alternative
1155 implementation in BN_mod_exp_mont_consttime().) The old name
1156 remains as a deprecated alias.
1158 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1159 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1160 constant-time implementations for more than just exponentiation.
1161 Here too the old name is kept as a deprecated alias.
1163 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1164 the BN_BLINDING structure gets an independent copy of the
1165 modulus. This means that the previous "BIGNUM *m" argument to
1166 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1167 essentially becomes "const BIGNUM *m", although we can't actually
1168 change this in the header file before 0.9.9. It allows
1169 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1170 enable BN_FLG_CONSTTIME.
1172 [Matthew D Wood (Intel Corp)]
1174 *) In the SSL/TLS server implementation, be strict about session ID
1175 context matching (which matters if an application uses a single
1176 external cache for different purposes). Previously,
1177 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1178 set. This did ensure strict client verification, but meant that,
1179 with applications using a single external cache for quite
1180 different requirements, clients could circumvent ciphersuite
1181 restrictions for a given session ID context by starting a session
1182 in a different context.
1185 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1186 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1187 authentication-only ciphersuites.
1190 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1191 not complete and could lead to a possible single byte overflow
1192 (CVE-2007-5135) [Ben Laurie]
1194 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1196 *) Since AES128 and AES256 (and similarly Camellia128 and
1197 Camellia256) share a single mask bit in the logic of
1198 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1199 kludge to work properly if AES128 is available and AES256 isn't
1200 (or if Camellia128 is available and Camellia256 isn't).
1203 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1204 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1205 When a point or a seed is encoded in a BIT STRING, we need to
1206 prevent the removal of trailing zero bits to get the proper DER
1207 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1208 of a NamedBitList, for which trailing 0 bits need to be removed.)
1211 *) Have SSL/TLS server implementation tolerate "mismatched" record
1212 protocol version while receiving ClientHello even if the
1213 ClientHello is fragmented. (The server can't insist on the
1214 particular protocol version it has chosen before the ServerHello
1215 message has informed the client about his choice.)
1218 *) Add RFC 3779 support.
1219 [Rob Austein for ARIN, Ben Laurie]
1221 *) Load error codes if they are not already present instead of using a
1222 static variable. This allows them to be cleanly unloaded and reloaded.
1223 Improve header file function name parsing.
1226 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1227 or CAPABILITY handshake as required by RFCs.
1230 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1232 *) Introduce limits to prevent malicious keys being able to
1233 cause a denial of service. (CVE-2006-2940)
1234 [Steve Henson, Bodo Moeller]
1236 *) Fix ASN.1 parsing of certain invalid structures that can result
1237 in a denial of service. (CVE-2006-2937) [Steve Henson]
1239 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1240 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1242 *) Fix SSL client code which could crash if connecting to a
1243 malicious SSLv2 server. (CVE-2006-4343)
1244 [Tavis Ormandy and Will Drewry, Google Security Team]
1246 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1247 match only those. Before that, "AES256-SHA" would be interpreted
1248 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1249 the same strength classification in 0.9.7h) as we currently only
1250 have a single AES bit in the ciphersuite description bitmap.
1251 That change, however, also applied to ciphersuite strings such as
1252 "RC4-MD5" that intentionally matched multiple ciphersuites --
1253 namely, SSL 2.0 ciphersuites in addition to the more common ones
1254 from SSL 3.0/TLS 1.0.
1256 So we change the selection algorithm again: Naming an explicit
1257 ciphersuite selects this one ciphersuite, and any other similar
1258 ciphersuite (same bitmap) from *other* protocol versions.
1259 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1260 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1262 Since SSL 2.0 does not have any ciphersuites for which the
1263 128/256 bit distinction would be relevant, this works for now.
1264 The proper fix will be to use different bits for AES128 and
1265 AES256, which would have avoided the problems from the beginning;
1266 however, bits are scarce, so we can only do this in a new release
1267 (not just a patchlevel) when we can change the SSL_CIPHER
1268 definition to split the single 'unsigned long mask' bitmap into
1269 multiple values to extend the available space.
1273 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1275 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1276 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1278 *) Add AES IGE and biIGE modes.
1281 *) Change the Unix randomness entropy gathering to use poll() when
1282 possible instead of select(), since the latter has some
1283 undesirable limitations.
1284 [Darryl Miles via Richard Levitte and Bodo Moeller]
1286 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1287 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1288 cannot be implicitly activated as part of, e.g., the "AES" alias.
1289 However, please upgrade to OpenSSL 0.9.9[-dev] for
1290 non-experimental use of the ECC ciphersuites to get TLS extension
1291 support, which is required for curve and point format negotiation
1292 to avoid potential handshake problems.
1295 *) Disable rogue ciphersuites:
1297 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1298 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1299 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1301 The latter two were purportedly from
1302 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1305 Also deactivate the remaining ciphersuites from
1306 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1307 unofficial, and the ID has long expired.
1310 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1311 dual-core machines) and other potential thread-safety issues.
1314 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1315 versions), which is now available for royalty-free use
1316 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1317 Also, add Camellia TLS ciphersuites from RFC 4132.
1319 To minimize changes between patchlevels in the OpenSSL 0.9.8
1320 series, Camellia remains excluded from compilation unless OpenSSL
1321 is configured with 'enable-camellia'.
1324 *) Disable the padding bug check when compression is in use. The padding
1325 bug check assumes the first packet is of even length, this is not
1326 necessarily true if compresssion is enabled and can result in false
1327 positives causing handshake failure. The actual bug test is ancient
1328 code so it is hoped that implementations will either have fixed it by
1329 now or any which still have the bug do not support compression.
1332 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1334 *) When applying a cipher rule check to see if string match is an explicit
1335 cipher suite and only match that one cipher suite if it is.
1338 *) Link in manifests for VC++ if needed.
1339 [Austin Ziegler <halostatue@gmail.com>]
1341 *) Update support for ECC-based TLS ciphersuites according to
1342 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1343 TLS extensions, which are supported starting with the 0.9.9
1344 branch, not in the OpenSSL 0.9.8 branch).
1347 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1348 opaque EVP_CIPHER_CTX handling.
1351 *) Fixes and enhancements to zlib compression code. We now only use
1352 "zlib1.dll" and use the default __cdecl calling convention on Win32
1353 to conform with the standards mentioned here:
1354 http://www.zlib.net/DLL_FAQ.txt
1355 Static zlib linking now works on Windows and the new --with-zlib-include
1356 --with-zlib-lib options to Configure can be used to supply the location
1357 of the headers and library. Gracefully handle case where zlib library
1361 *) Several fixes and enhancements to the OID generation code. The old code
1362 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1363 handle numbers larger than ULONG_MAX, truncated printing and had a
1364 non standard OBJ_obj2txt() behaviour.
1367 *) Add support for building of engines under engine/ as shared libraries
1368 under VC++ build system.
1371 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1372 Hopefully, we will not see any false combination of paths any more.
1375 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1377 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1378 (part of SSL_OP_ALL). This option used to disable the
1379 countermeasure against man-in-the-middle protocol-version
1380 rollback in the SSL 2.0 server implementation, which is a bad
1381 idea. (CVE-2005-2969)
1383 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1384 for Information Security, National Institute of Advanced Industrial
1385 Science and Technology [AIST], Japan)]
1387 *) Add two function to clear and return the verify parameter flags.
1390 *) Keep cipherlists sorted in the source instead of sorting them at
1391 runtime, thus removing the need for a lock.
1394 *) Avoid some small subgroup attacks in Diffie-Hellman.
1395 [Nick Mathewson and Ben Laurie]
1397 *) Add functions for well-known primes.
1400 *) Extended Windows CE support.
1401 [Satoshi Nakamura and Andy Polyakov]
1403 *) Initialize SSL_METHOD structures at compile time instead of during
1404 runtime, thus removing the need for a lock.
1407 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1408 attempting to decrypt each encrypted key in turn. Add support to
1412 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1414 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1417 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1420 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1421 key into the same file any more.
1424 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1427 *) Add -utf8 command line and config file option to 'ca'.
1428 [Stefan <stf@udoma.org]
1430 *) Removed the macro des_crypt(), as it seems to conflict with some
1431 libraries. Use DES_crypt().
1434 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1435 involves renaming the source and generated shared-libs for
1436 both. The engines will accept the corrected or legacy ids
1437 ('ncipher' and '4758_cca' respectively) when binding. NB,
1438 this only applies when building 'shared'.
1439 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1441 *) Add attribute functions to EVP_PKEY structure. Modify
1442 PKCS12_create() to recognize a CSP name attribute and
1443 use it. Make -CSP option work again in pkcs12 utility.
1446 *) Add new functionality to the bn blinding code:
1447 - automatic re-creation of the BN_BLINDING parameters after
1448 a fixed number of uses (currently 32)
1449 - add new function for parameter creation
1450 - introduce flags to control the update behaviour of the
1451 BN_BLINDING parameters
1452 - hide BN_BLINDING structure
1453 Add a second BN_BLINDING slot to the RSA structure to improve
1454 performance when a single RSA object is shared among several
1458 *) Add support for DTLS.
1459 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1461 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1462 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1465 *) Remove buggy and incompletet DH cert support from
1466 ssl/ssl_rsa.c and ssl/s3_both.c
1469 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1470 the apps/openssl applications.
1473 *) Compile clean with "-Wall -Wmissing-prototypes
1474 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1475 DEBUG_SAFESTACK must also be set.
1478 *) Change ./Configure so that certain algorithms can be disabled by default.
1479 The new counterpiece to "no-xxx" is "enable-xxx".
1481 The patented RC5 and MDC2 algorithms will now be disabled unless
1482 "enable-rc5" and "enable-mdc2", respectively, are specified.
1484 (IDEA remains enabled despite being patented. This is because IDEA
1485 is frequently required for interoperability, and there is no license
1486 fee for non-commercial use. As before, "no-idea" can be used to
1487 avoid this algorithm.)
1491 *) Add processing of proxy certificates (see RFC 3820). This work was
1492 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1493 EGEE (Enabling Grids for E-science in Europe).
1496 *) RC4 performance overhaul on modern architectures/implementations, such
1497 as Intel P4, IA-64 and AMD64.
1500 *) New utility extract-section.pl. This can be used specify an alternative
1501 section number in a pod file instead of having to treat each file as
1502 a separate case in Makefile. This can be done by adding two lines to the
1505 =for comment openssl_section:XXX
1507 The blank line is mandatory.
1511 *) New arguments -certform, -keyform and -pass for s_client and s_server
1512 to allow alternative format key and certificate files and passphrase
1516 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1517 update associated structures and add various utility functions.
1519 Add new policy related verify parameters, include policy checking in
1520 standard verify code. Enhance 'smime' application with extra parameters
1521 to support policy checking and print out.
1524 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1525 Nehemiah processors. These extensions support AES encryption in hardware
1526 as well as RNG (though RNG support is currently disabled).
1527 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1529 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1532 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1533 [Andy Polyakov and a number of other people]
1535 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1536 implementation contributed by IBM.
1537 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1539 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1540 exponent rather than 'unsigned long'. There is a corresponding change to
1541 the new 'rsa_keygen' element of the RSA_METHOD structure.
1542 [Jelte Jansen, Geoff Thorpe]
1544 *) Functionality for creating the initial serial number file is now
1545 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1547 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1548 number file to 1, which is bound to cause problems. To avoid
1549 the problems while respecting compatibility between different 0.9.7
1550 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1551 CA.pl for serial number initialization. With the new release 0.9.8,
1552 we can fix the problem directly in the 'ca' utility.)
1555 *) Reduced header interdepencies by declaring more opaque objects in
1556 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1557 give fewer recursive includes, which could break lazy source code - so
1558 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1559 developers should define this symbol when building and using openssl to
1560 ensure they track the recommended behaviour, interfaces, [etc], but
1561 backwards-compatible behaviour prevails when this isn't defined.
1564 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1567 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1568 This will generate a random key of the appropriate length based on the
1569 cipher context. The EVP_CIPHER can provide its own random key generation
1570 routine to support keys of a specific form. This is used in the des and
1571 3des routines to generate a key of the correct parity. Update S/MIME
1572 code to use new functions and hence generate correct parity DES keys.
1573 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1574 valid (weak or incorrect parity).
1577 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1578 as looking them up. This is useful when the verified structure may contain
1579 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1580 present unless the new PKCS7_NO_CRL flag is asserted.
1583 *) Extend ASN1 oid configuration module. It now additionally accepts the
1586 shortName = some long name, 1.2.3.4
1589 *) Reimplemented the BN_CTX implementation. There is now no more static
1590 limitation on the number of variables it can handle nor the depth of the
1591 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1592 information can now expand as required, and rather than having a single
1593 static array of bignums, BN_CTX now uses a linked-list of such arrays
1594 allowing it to expand on demand whilst maintaining the usefulness of
1595 BN_CTX's "bundling".
1598 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1599 to allow all RSA operations to function using a single BN_CTX.
1602 *) Preliminary support for certificate policy evaluation and checking. This
1603 is initially intended to pass the tests outlined in "Conformance Testing
1604 of Relying Party Client Certificate Path Processing Logic" v1.07.
1607 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1608 remained unused and not that useful. A variety of other little bignum
1609 tweaks and fixes have also been made continuing on from the audit (see
1613 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1614 associated ASN1, EVP and SSL functions and old ASN1 macros.
1617 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1618 and this should never fail. So the return value from the use of
1619 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1620 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1623 *) BN_CTX_get() should return zero-valued bignums, providing the same
1624 initialised value as BN_new().
1625 [Geoff Thorpe, suggested by Ulf Möller]
1627 *) Support for inhibitAnyPolicy certificate extension.
1630 *) An audit of the BIGNUM code is underway, for which debugging code is
1631 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1632 is considered valid when processing BIGNUMs, and causes execution to
1633 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1634 further steps are taken to deliberately pollute unused data in BIGNUM
1635 structures to try and expose faulty code further on. For now, openssl will
1636 (in its default mode of operation) continue to tolerate the inconsistent
1637 forms that it has tolerated in the past, but authors and packagers should
1638 consider trying openssl and their own applications when compiled with
1639 these debugging symbols defined. It will help highlight potential bugs in
1640 their own code, and will improve the test coverage for OpenSSL itself. At
1641 some point, these tighter rules will become openssl's default to improve
1642 maintainability, though the assert()s and other overheads will remain only
1643 in debugging configurations. See bn.h for more details.
1644 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1646 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1647 that can only be obtained through BN_CTX_new() (which implicitly
1648 initialises it). The presence of this function only made it possible
1649 to overwrite an existing structure (and cause memory leaks).
1652 *) Because of the callback-based approach for implementing LHASH as a
1653 template type, lh_insert() adds opaque objects to hash-tables and
1654 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1655 to clean up those corresponding objects before destroying the hash table
1656 (and losing the object pointers). So some over-zealous constifications in
1657 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1658 objects as "const" and the lh_doall[_arg] callback wrappers are not
1659 prototyped to have "const" restrictions on the object pointers they are
1660 given (and so aren't required to cast them away any more).
1663 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1664 (speed) prefers to use its own implementation. The two implementations
1665 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1666 its object type properly exposed (MS_TM) instead of casting to/from "char
1667 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1668 aren't necessarily the greatest nomenclatures - but this is what was used
1669 internally to the implementation so I've used that for now.
1672 *) Ensure that deprecated functions do not get compiled when
1673 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1674 the self-tests were still using deprecated key-generation functions so
1675 these have been updated also.
1678 *) Reorganise PKCS#7 code to separate the digest location functionality
1679 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1680 New function PKCS7_set_digest() to set the digest type for PKCS#7
1681 digestedData type. Add additional code to correctly generate the
1682 digestedData type and add support for this type in PKCS7 initialization
1686 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1687 structure of type "other".
1690 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1691 sure the loop does correctly stop and breaking ("division by zero")
1692 modulus operations are not performed. The (pre-generated) prime
1693 table crypto/bn/bn_prime.h was already correct, but it could not be
1694 re-generated on some platforms because of the "division by zero"
1695 situation in the script.
1696 [Ralf S. Engelschall]
1698 *) Update support for ECC-based TLS ciphersuites according to
1699 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1700 SHA-1 now is only used for "small" curves (where the
1701 representation of a field element takes up to 24 bytes); for
1702 larger curves, the field element resulting from ECDH is directly
1703 used as premaster secret.
1704 [Douglas Stebila (Sun Microsystems Laboratories)]
1706 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1707 curve secp160r1 to the tests.
1708 [Douglas Stebila (Sun Microsystems Laboratories)]
1710 *) Add the possibility to load symbols globally with DSO.
1711 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1713 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1714 control of the error stack.
1717 *) Add support for STORE in ENGINE.
1720 *) Add the STORE type. The intention is to provide a common interface
1721 to certificate and key stores, be they simple file-based stores, or
1722 HSM-type store, or LDAP stores, or...
1723 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1726 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1727 pass a list of arguments to any function as well as provide a way
1728 for a function to pass data back to the caller.
1731 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1732 works like BUF_strdup() but can be used to duplicate a portion of
1733 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1737 *) Add the function sk_find_ex() which works like sk_find(), but will
1738 return an index to an element even if an exact match couldn't be
1739 found. The index is guaranteed to point at the element where the
1740 searched-for key would be inserted to preserve sorting order.
1743 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1744 takes an extra flags argument for optional functionality. Currently,
1745 the following flags are defined:
1747 OBJ_BSEARCH_VALUE_ON_NOMATCH
1748 This one gets OBJ_bsearch_ex() to return a pointer to the first
1749 element where the comparing function returns a negative or zero
1752 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1753 This one gets OBJ_bsearch_ex() to return a pointer to the first
1754 element where the comparing function returns zero. This is useful
1755 if there are more than one element where the comparing function
1759 *) Make it possible to create self-signed certificates with 'openssl ca'
1760 in such a way that the self-signed certificate becomes part of the
1761 CA database and uses the same mechanisms for serial number generation
1762 as all other certificate signing. The new flag '-selfsign' enables
1763 this functionality. Adapt CA.sh and CA.pl.in.
1766 *) Add functionality to check the public key of a certificate request
1767 against a given private. This is useful to check that a certificate
1768 request can be signed by that key (self-signing).
1771 *) Make it possible to have multiple active certificates with the same
1772 subject in the CA index file. This is done only if the keyword
1773 'unique_subject' is set to 'no' in the main CA section (default
1774 if 'CA_default') of the configuration file. The value is saved
1775 with the database itself in a separate index attribute file,
1776 named like the index file with '.attr' appended to the name.
1779 *) Generate muti valued AVAs using '+' notation in config files for
1783 *) Support for nameConstraints certificate extension.
1786 *) Support for policyConstraints certificate extension.
1789 *) Support for policyMappings certificate extension.
1792 *) Make sure the default DSA_METHOD implementation only uses its
1793 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1794 and change its own handlers to be NULL so as to remove unnecessary
1795 indirection. This lets alternative implementations fallback to the
1796 default implementation more easily.
1799 *) Support for directoryName in GeneralName related extensions
1803 *) Make it possible to link applications using Makefile.shared.
1804 Make that possible even when linking against static libraries!
1807 *) Support for single pass processing for S/MIME signing. This now
1808 means that S/MIME signing can be done from a pipe, in addition
1809 cleartext signing (multipart/signed type) is effectively streaming
1810 and the signed data does not need to be all held in memory.
1812 This is done with a new flag PKCS7_STREAM. When this flag is set
1813 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1814 is done after the data is output (and digests calculated) in
1815 SMIME_write_PKCS7().
1818 *) Add full support for -rpath/-R, both in shared libraries and
1819 applications, at least on the platforms where it's known how
1823 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1824 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1825 will now compute a table of multiples of the generator that
1826 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1827 faster (notably in the case of a single point multiplication,
1828 scalar * generator).
1829 [Nils Larsch, Bodo Moeller]
1831 *) IPv6 support for certificate extensions. The various extensions
1832 which use the IP:a.b.c.d can now take IPv6 addresses using the
1833 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1837 *) Added an ENGINE that implements RSA by performing private key
1838 exponentiations with the GMP library. The conversions to and from
1839 GMP's mpz_t format aren't optimised nor are any montgomery forms
1840 cached, and on x86 it appears OpenSSL's own performance has caught up.
1841 However there are likely to be other architectures where GMP could
1842 provide a boost. This ENGINE is not built in by default, but it can be
1843 specified at Configure time and should be accompanied by the necessary
1844 linker additions, eg;
1845 ./config -DOPENSSL_USE_GMP -lgmp
1848 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1849 testing availability of engines with "-t" - the old behaviour is
1850 produced by increasing the feature's verbosity with "-tt".
1853 *) ECDSA routines: under certain error conditions uninitialized BN objects
1854 could be freed. Solution: make sure initialization is performed early
1855 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1859 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1860 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1861 software implementations. For DSA and DH, parameter generation can
1862 also be overriden by providing the appropriate method callbacks.
1865 *) Change the "progress" mechanism used in key-generation and
1866 primality testing to functions that take a new BN_GENCB pointer in
1867 place of callback/argument pairs. The new API functions have "_ex"
1868 postfixes and the older functions are reimplemented as wrappers for
1869 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1870 declarations of the old functions to help (graceful) attempts to
1871 migrate to the new functions. Also, the new key-generation API
1872 functions operate on a caller-supplied key-structure and return
1873 success/failure rather than returning a key or NULL - this is to
1874 help make "keygen" another member function of RSA_METHOD etc.
1876 Example for using the new callback interface:
1878 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1882 BN_GENCB_set(&my_cb, my_callback, my_arg);
1884 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1885 /* For the meaning of a, b in calls to my_callback(), see the
1886 * documentation of the function that calls the callback.
1887 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1888 * my_callback should return 1 if it wants BN_is_prime_ex()
1889 * to continue, or 0 to stop.
1894 *) Change the ZLIB compression method to be stateful, and make it
1895 available to TLS with the number defined in
1896 draft-ietf-tls-compression-04.txt.
1899 *) Add the ASN.1 structures and functions for CertificatePair, which
1900 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1902 CertificatePair ::= SEQUENCE {
1903 forward [0] Certificate OPTIONAL,
1904 reverse [1] Certificate OPTIONAL,
1905 -- at least one of the pair shall be present -- }
1907 Also implement the PEM functions to read and write certificate
1908 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1910 This needed to be defined, mostly for the sake of the LDAP
1911 attribute crossCertificatePair, but may prove useful elsewhere as
1915 *) Make it possible to inhibit symlinking of shared libraries in
1916 Makefile.shared, for Cygwin's sake.
1919 *) Extend the BIGNUM API by creating a function
1920 void BN_set_negative(BIGNUM *a, int neg);
1921 and a macro that behave like
1922 int BN_is_negative(const BIGNUM *a);
1924 to avoid the need to access 'a->neg' directly in applications.
1927 *) Implement fast modular reduction for pseudo-Mersenne primes
1928 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1929 EC_GROUP_new_curve_GFp() will now automatically use this
1931 [Nils Larsch <nla@trustcenter.de>]
1933 *) Add new lock type (CRYPTO_LOCK_BN).
1936 *) Change the ENGINE framework to automatically load engines
1937 dynamically from specific directories unless they could be
1938 found to already be built in or loaded. Move all the
1939 current engines except for the cryptodev one to a new
1941 The engines in engines/ are built as shared libraries if
1942 the "shared" options was given to ./Configure or ./config.
1943 Otherwise, they are inserted in libcrypto.a.
1944 /usr/local/ssl/engines is the default directory for dynamic
1945 engines, but that can be overriden at configure time through
1946 the usual use of --prefix and/or --openssldir, and at run
1947 time with the environment variable OPENSSL_ENGINES.
1948 [Geoff Thorpe and Richard Levitte]
1950 *) Add Makefile.shared, a helper makefile to build shared
1951 libraries. Addapt Makefile.org.
1954 *) Add version info to Win32 DLLs.
1955 [Peter 'Luna' Runestig" <peter@runestig.com>]
1957 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1958 can be added using this API to created arbitrary PKCS#12
1959 files while avoiding the low level API.
1961 New options to PKCS12_create(), key or cert can be NULL and
1962 will then be omitted from the output file. The encryption
1963 algorithm NIDs can be set to -1 for no encryption, the mac
1964 iteration count can be set to 0 to omit the mac.
1966 Enhance pkcs12 utility by making the -nokeys and -nocerts
1967 options work when creating a PKCS#12 file. New option -nomac
1968 to omit the mac, NONE can be set for an encryption algorithm.
1969 New code is modified to use the enhanced PKCS12_create()
1970 instead of the low level API.
1973 *) Extend ASN1 encoder to support indefinite length constructed
1974 encoding. This can output sequences tags and octet strings in
1975 this form. Modify pk7_asn1.c to support indefinite length
1976 encoding. This is experimental and needs additional code to
1977 be useful, such as an ASN1 bio and some enhanced streaming
1980 Extend template encode functionality so that tagging is passed
1981 down to the template encoder.
1984 *) Let 'openssl req' fail if an argument to '-newkey' is not
1985 recognized instead of using RSA as a default.
1988 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1989 As these are not official, they are not included in "ALL";
1990 the "ECCdraft" ciphersuite group alias can be used to select them.
1991 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1993 *) Add ECDH engine support.
1994 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1996 *) Add ECDH in new directory crypto/ecdh/.
1997 [Douglas Stebila (Sun Microsystems Laboratories)]
1999 *) Let BN_rand_range() abort with an error after 100 iterations
2000 without success (which indicates a broken PRNG).
2003 *) Change BN_mod_sqrt() so that it verifies that the input value
2004 is really the square of the return value. (Previously,
2005 BN_mod_sqrt would show GIGO behaviour.)
2008 *) Add named elliptic curves over binary fields from X9.62, SECG,
2009 and WAP/WTLS; add OIDs that were still missing.
2011 [Sheueling Chang Shantz and Douglas Stebila
2012 (Sun Microsystems Laboratories)]
2014 *) Extend the EC library for elliptic curves over binary fields
2015 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2018 EC_GF2m_simple_method
2022 EC_GROUP_new_curve_GF2m
2023 EC_GROUP_set_curve_GF2m
2024 EC_GROUP_get_curve_GF2m
2025 EC_POINT_set_affine_coordinates_GF2m
2026 EC_POINT_get_affine_coordinates_GF2m
2027 EC_POINT_set_compressed_coordinates_GF2m
2029 Point compression for binary fields is disabled by default for
2030 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2033 As binary polynomials are represented as BIGNUMs, various members
2034 of the EC_GROUP and EC_POINT data structures can be shared
2035 between the implementations for prime fields and binary fields;
2036 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2037 are essentially identical to their ..._GFp counterparts.
2038 (For simplicity, the '..._GFp' prefix has been dropped from
2039 various internal method names.)
2041 An internal 'field_div' method (similar to 'field_mul' and
2042 'field_sqr') has been added; this is used only for binary fields.
2044 [Sheueling Chang Shantz and Douglas Stebila
2045 (Sun Microsystems Laboratories)]
2047 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2048 through methods ('mul', 'precompute_mult').
2050 The generic implementations (now internally called 'ec_wNAF_mul'
2051 and 'ec_wNAF_precomputed_mult') remain the default if these
2052 methods are undefined.
2054 [Sheueling Chang Shantz and Douglas Stebila
2055 (Sun Microsystems Laboratories)]
2057 *) New function EC_GROUP_get_degree, which is defined through
2058 EC_METHOD. For curves over prime fields, this returns the bit
2059 length of the modulus.
2061 [Sheueling Chang Shantz and Douglas Stebila
2062 (Sun Microsystems Laboratories)]
2064 *) New functions EC_GROUP_dup, EC_POINT_dup.
2065 (These simply call ..._new and ..._copy).
2067 [Sheueling Chang Shantz and Douglas Stebila
2068 (Sun Microsystems Laboratories)]
2070 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2071 Polynomials are represented as BIGNUMs (where the sign bit is not
2072 used) in the following functions [macros]:
2075 BN_GF2m_sub [= BN_GF2m_add]
2076 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2077 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2078 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2080 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2081 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2082 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2083 BN_GF2m_cmp [= BN_ucmp]
2085 (Note that only the 'mod' functions are actually for fields GF(2^m).
2086 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2088 For some functions, an the irreducible polynomial defining a
2089 field can be given as an 'unsigned int[]' with strictly
2090 decreasing elements giving the indices of those bits that are set;
2091 i.e., p[] represents the polynomial
2092 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2094 p[0] > p[1] > ... > p[k] = 0.
2095 This applies to the following functions:
2100 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2101 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2103 BN_GF2m_mod_sqrt_arr
2104 BN_GF2m_mod_solve_quad_arr
2108 Conversion can be performed by the following functions:
2113 bntest.c has additional tests for binary polynomial arithmetic.
2115 Two implementations for BN_GF2m_mod_div() are available.
2116 The default algorithm simply uses BN_GF2m_mod_inv() and
2117 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2118 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2119 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2121 [Sheueling Chang Shantz and Douglas Stebila
2122 (Sun Microsystems Laboratories)]
2124 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2125 functionality is disabled at compile-time.
2126 [Douglas Stebila <douglas.stebila@sun.com>]
2128 *) Change default behaviour of 'openssl asn1parse' so that more
2129 information is visible when viewing, e.g., a certificate:
2131 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2132 mode the content of non-printable OCTET STRINGs is output in a
2133 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2134 avoid the appearance of a printable string.
2135 [Nils Larsch <nla@trustcenter.de>]
2137 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2139 EC_GROUP_set_asn1_flag()
2140 EC_GROUP_get_asn1_flag()
2141 EC_GROUP_set_point_conversion_form()
2142 EC_GROUP_get_point_conversion_form()
2143 These control ASN1 encoding details:
2144 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2145 has been set to OPENSSL_EC_NAMED_CURVE.
2146 - Points are encoded in uncompressed form by default; options for
2147 asn1_for are as for point2oct, namely
2148 POINT_CONVERSION_COMPRESSED
2149 POINT_CONVERSION_UNCOMPRESSED
2150 POINT_CONVERSION_HYBRID
2152 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2155 EC_GROUP_get0_seed()
2156 EC_GROUP_get_seed_len()
2157 This is used only for ASN1 purposes (so far).
2158 [Nils Larsch <nla@trustcenter.de>]
2160 *) Add 'field_type' member to EC_METHOD, which holds the NID
2161 of the appropriate field type OID. The new function
2162 EC_METHOD_get_field_type() returns this value.
2163 [Nils Larsch <nla@trustcenter.de>]
2168 EC_POINT_point2hex()
2169 EC_POINT_hex2point()
2170 providing useful interfaces to EC_POINT_point2oct() and
2171 EC_POINT_oct2point().
2172 [Nils Larsch <nla@trustcenter.de>]
2174 *) Change internals of the EC library so that the functions
2175 EC_GROUP_set_generator()
2176 EC_GROUP_get_generator()
2177 EC_GROUP_get_order()
2178 EC_GROUP_get_cofactor()
2179 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2180 to methods, which would lead to unnecessary code duplication when
2181 adding different types of curves.
2182 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2184 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2185 arithmetic, and such that modified wNAFs are generated
2186 (which avoid length expansion in many cases).
2189 *) Add a function EC_GROUP_check_discriminant() (defined via
2190 EC_METHOD) that verifies that the curve discriminant is non-zero.
2192 Add a function EC_GROUP_check() that makes some sanity tests
2193 on a EC_GROUP, its generator and order. This includes
2194 EC_GROUP_check_discriminant().
2195 [Nils Larsch <nla@trustcenter.de>]
2197 *) Add ECDSA in new directory crypto/ecdsa/.
2199 Add applications 'openssl ecparam' and 'openssl ecdsa'
2200 (these are based on 'openssl dsaparam' and 'openssl dsa').
2202 ECDSA support is also included in various other files across the
2203 library. Most notably,
2204 - 'openssl req' now has a '-newkey ecdsa:file' option;
2205 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2206 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2207 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2208 them suitable for ECDSA where domain parameters must be
2209 extracted before the specific public key;
2210 - ECDSA engine support has been added.
2211 [Nils Larsch <nla@trustcenter.de>]
2213 *) Include some named elliptic curves, and add OIDs from X9.62,
2214 SECG, and WAP/WTLS. Each curve can be obtained from the new
2216 EC_GROUP_new_by_curve_name(),
2217 and the list of available named curves can be obtained with
2218 EC_get_builtin_curves().
2219 Also add a 'curve_name' member to EC_GROUP objects, which can be
2221 EC_GROUP_set_curve_name()
2222 EC_GROUP_get_curve_name()
2223 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2225 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2226 was actually never needed) and in BN_mul(). The removal in BN_mul()
2227 required a small change in bn_mul_part_recursive() and the addition
2228 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2229 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2230 bn_sub_words() and bn_add_words() except they take arrays with
2234 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
2236 *) In the SSL/TLS server implementation, be strict about session ID
2237 context matching (which matters if an application uses a single
2238 external cache for different purposes). Previously,
2239 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2240 set. This did ensure strict client verification, but meant that,
2241 with applications using a single external cache for quite
2242 different requirements, clients could circumvent ciphersuite
2243 restrictions for a given session ID context by starting a session
2244 in a different context.
2247 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2249 *) Cleanse PEM buffers before freeing them since they may contain
2251 [Benjamin Bennett <ben@psc.edu>]
2253 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2254 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2255 authentication-only ciphersuites.
2258 *) Since AES128 and AES256 share a single mask bit in the logic of
2259 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2260 kludge to work properly if AES128 is available and AES256 isn't.
2263 *) Expand security boundary to match 1.1.1 module.
2266 *) Remove redundant features: hash file source, editing of test vectors
2267 modify fipsld to use external fips_premain.c signature.
2270 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2271 run algorithm test programs.
2274 *) Make algorithm test programs more tolerant of whitespace.
2277 *) Have SSL/TLS server implementation tolerate "mismatched" record
2278 protocol version while receiving ClientHello even if the
2279 ClientHello is fragmented. (The server can't insist on the
2280 particular protocol version it has chosen before the ServerHello
2281 message has informed the client about his choice.)
2284 *) Load error codes if they are not already present instead of using a
2285 static variable. This allows them to be cleanly unloaded and reloaded.
2288 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2290 *) Introduce limits to prevent malicious keys being able to
2291 cause a denial of service. (CVE-2006-2940)
2292 [Steve Henson, Bodo Moeller]
2294 *) Fix ASN.1 parsing of certain invalid structures that can result
2295 in a denial of service. (CVE-2006-2937) [Steve Henson]
2297 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2298 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2300 *) Fix SSL client code which could crash if connecting to a
2301 malicious SSLv2 server. (CVE-2006-4343)
2302 [Tavis Ormandy and Will Drewry, Google Security Team]
2304 *) Change ciphersuite string processing so that an explicit
2305 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2306 will no longer include "AES128-SHA"), and any other similar
2307 ciphersuite (same bitmap) from *other* protocol versions (so that
2308 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2309 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2310 changes from 0.9.8b and 0.9.8d.
2313 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2315 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2316 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2318 *) Change the Unix randomness entropy gathering to use poll() when
2319 possible instead of select(), since the latter has some
2320 undesirable limitations.
2321 [Darryl Miles via Richard Levitte and Bodo Moeller]
2323 *) Disable rogue ciphersuites:
2325 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2326 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2327 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2329 The latter two were purportedly from
2330 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2333 Also deactive the remaining ciphersuites from
2334 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2335 unofficial, and the ID has long expired.
2338 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2339 dual-core machines) and other potential thread-safety issues.
2342 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2344 *) Adapt fipsld and the build system to link against the validated FIPS
2345 module in FIPS mode.
2348 *) Fixes for VC++ 2005 build under Windows.
2351 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2352 from a Windows bash shell such as MSYS. It is autodetected from the
2353 "config" script when run from a VC++ environment. Modify standard VC++
2354 build to use fipscanister.o from the GNU make build.
2357 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2359 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2360 The value now differs depending on if you build for FIPS or not.
2361 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2362 safely run with a non-FIPSed libcrypto, as it may crash because of
2363 the difference induced by this change.
2366 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2368 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2369 (part of SSL_OP_ALL). This option used to disable the
2370 countermeasure against man-in-the-middle protocol-version
2371 rollback in the SSL 2.0 server implementation, which is a bad
2372 idea. (CVE-2005-2969)
2374 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2375 for Information Security, National Institute of Advanced Industrial
2376 Science and Technology [AIST], Japan)]
2378 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2379 mainly for FIPS compliance and not fully integrated at this stage.
2382 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2383 the exponentiation using a fixed-length exponent. (Otherwise,
2384 the information leaked through timing could expose the secret key
2385 after many signatures; cf. Bleichenbacher's attack on DSA with
2389 *) Make a new fixed-window mod_exp implementation the default for
2390 RSA, DSA, and DH private-key operations so that the sequence of
2391 squares and multiplies and the memory access pattern are
2392 independent of the particular secret key. This will mitigate
2393 cache-timing and potential related attacks.
2395 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2396 and this is automatically used by BN_mod_exp_mont() if the new flag
2397 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2398 will use this BN flag for private exponents unless the flag
2399 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2400 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2402 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2404 *) Change the client implementation for SSLv23_method() and
2405 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2406 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2407 (Previously, the SSL 2.0 backwards compatible Client Hello
2408 message format would be used even with SSL_OP_NO_SSLv2.)
2411 *) Add support for smime-type MIME parameter in S/MIME messages which some
2415 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2416 a threadsafe manner. Modify rsa code to use new function and add calls
2417 to dsa and dh code (which had race conditions before).
2420 *) Include the fixed error library code in the C error file definitions
2421 instead of fixing them up at runtime. This keeps the error code
2422 structures constant.
2425 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2427 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2430 *) Fixes for newer kerberos headers. NB: the casts are needed because
2431 the 'length' field is signed on one version and unsigned on another
2432 with no (?) obvious way to tell the difference, without these VC++
2433 complains. Also the "definition" of FAR (blank) is no longer included
2434 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2435 some needed definitions.
2438 *) Undo Cygwin change.
2441 *) Added support for proxy certificates according to RFC 3820.
2442 Because they may be a security thread to unaware applications,
2443 they must be explicitely allowed in run-time. See
2444 docs/HOWTO/proxy_certificates.txt for further information.
2447 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2449 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2450 server and client random values. Previously
2451 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2452 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2454 This change has negligible security impact because:
2456 1. Server and client random values still have 24 bytes of pseudo random
2459 2. Server and client random values are sent in the clear in the initial
2462 3. The master secret is derived using the premaster secret (48 bytes in
2463 size for static RSA ciphersuites) as well as client server and random
2466 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2469 [Stephen Henson, reported by UK NISCC]
2471 *) Use Windows randomness collection on Cygwin.
2474 *) Fix hang in EGD/PRNGD query when communication socket is closed
2475 prematurely by EGD/PRNGD.
2476 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2478 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2481 *) Back-port of selected performance improvements from development
2482 branch, as well as improved support for PowerPC platforms.
2485 *) Add lots of checks for memory allocation failure, error codes to indicate
2486 failure and freeing up memory if a failure occurs.
2487 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2489 *) Add new -passin argument to dgst.
2492 *) Perform some character comparisons of different types in X509_NAME_cmp:
2493 this is needed for some certificates that reencode DNs into UTF8Strings
2494 (in violation of RFC3280) and can't or wont issue name rollover
2498 *) Make an explicit check during certificate validation to see that
2499 the CA setting in each certificate on the chain is correct. As a
2500 side effect always do the following basic checks on extensions,
2501 not just when there's an associated purpose to the check:
2503 - if there is an unhandled critical extension (unless the user
2504 has chosen to ignore this fault)
2505 - if the path length has been exceeded (if one is set at all)
2506 - that certain extensions fit the associated purpose (if one has
2510 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2512 *) Avoid a race condition when CRLs are checked in a multi threaded
2513 environment. This would happen due to the reordering of the revoked
2514 entries during signature checking and serial number lookup. Now the
2515 encoding is cached and the serial number sort performed under a lock.
2516 Add new STACK function sk_is_sorted().
2519 *) Add Delta CRL to the extension code.
2522 *) Various fixes to s3_pkt.c so alerts are sent properly.
2523 [David Holmes <d.holmes@f5.com>]
2525 *) Reduce the chances of duplicate issuer name and serial numbers (in
2526 violation of RFC3280) using the OpenSSL certificate creation utilities.
2527 This is done by creating a random 64 bit value for the initial serial
2528 number when a serial number file is created or when a self signed
2529 certificate is created using 'openssl req -x509'. The initial serial
2530 number file is created using 'openssl x509 -next_serial' in CA.pl
2531 rather than being initialized to 1.
2534 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2536 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2537 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2538 [Joe Orton, Steve Henson]
2540 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2542 [Joe Orton, Steve Henson]
2544 *) Make it possible to have multiple active certificates with the same
2545 subject in the CA index file. This is done only if the keyword
2546 'unique_subject' is set to 'no' in the main CA section (default
2547 if 'CA_default') of the configuration file. The value is saved
2548 with the database itself in a separate index attribute file,
2549 named like the index file with '.attr' appended to the name.
2552 *) X509 verify fixes. Disable broken certificate workarounds when
2553 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2554 keyUsage extension present. Don't accept CRLs with unhandled critical
2555 extensions: since verify currently doesn't process CRL extensions this
2556 rejects a CRL with *any* critical extensions. Add new verify error codes
2560 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2561 A clarification of RFC2560 will require the use of OCTET STRINGs and
2562 some implementations cannot handle the current raw format. Since OpenSSL
2563 copies and compares OCSP nonces as opaque blobs without any attempt at
2564 parsing them this should not create any compatibility issues.
2567 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2568 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2569 this HMAC (and other) operations are several times slower than OpenSSL
2573 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2574 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2576 *) Use the correct content when signing type "other".
2579 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2581 *) Fix various bugs revealed by running the NISCC test suite:
2583 Stop out of bounds reads in the ASN1 code when presented with
2584 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2586 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2588 If verify callback ignores invalid public key errors don't try to check
2589 certificate signature with the NULL public key.
2593 *) New -ignore_err option in ocsp application to stop the server
2594 exiting on the first error in a request.
2597 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2598 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2602 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2603 extra data after the compression methods not only for TLS 1.0
2604 but also for SSL 3.0 (as required by the specification).
2605 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2607 *) Change X509_certificate_type() to mark the key as exported/exportable
2608 when it's 512 *bits* long, not 512 bytes.
2611 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2612 blocks during encryption.
2615 *) Various fixes to base64 BIO and non blocking I/O. On write
2616 flushes were not handled properly if the BIO retried. On read
2617 data was not being buffered properly and had various logic bugs.
2618 This also affects blocking I/O when the data being decoded is a
2622 *) Various S/MIME bugfixes and compatibility changes:
2623 output correct application/pkcs7 MIME type if
2624 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2625 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2626 of files as .eml work). Correctly handle very long lines in MIME
2630 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2632 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2633 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2634 a protocol version number mismatch like a decryption error
2635 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2638 *) Turn on RSA blinding by default in the default implementation
2639 to avoid a timing attack. Applications that don't want it can call
2640 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2641 They would be ill-advised to do so in most cases.
2642 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2644 *) Change RSA blinding code so that it works when the PRNG is not
2645 seeded (in this case, the secret RSA exponent is abused as
2646 an unpredictable seed -- if it is not unpredictable, there
2647 is no point in blinding anyway). Make RSA blinding thread-safe
2648 by remembering the creator's thread ID in rsa->blinding and
2649 having all other threads use local one-time blinding factors
2650 (this requires more computation than sharing rsa->blinding, but
2651 avoids excessive locking; and if an RSA object is not shared
2652 between threads, blinding will still be very fast).
2655 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2656 ENGINE as defaults for all supported algorithms irrespective of
2657 the 'flags' parameter. 'flags' is now honoured, so applications
2658 should make sure they are passing it correctly.
2661 *) Target "mingw" now allows native Windows code to be generated in
2662 the Cygwin environment as well as with the MinGW compiler.
2665 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2667 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2668 via timing by performing a MAC computation even if incorrrect
2669 block cipher padding has been found. This is a countermeasure
2670 against active attacks where the attacker has to distinguish
2671 between bad padding and a MAC verification error. (CVE-2003-0078)
2673 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2674 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2675 Martin Vuagnoux (EPFL, Ilion)]
2677 *) Make the no-err option work as intended. The intention with no-err
2678 is not to have the whole error stack handling routines removed from
2679 libcrypto, it's only intended to remove all the function name and
2680 reason texts, thereby removing some of the footprint that may not
2681 be interesting if those errors aren't displayed anyway.
2683 NOTE: it's still possible for any application or module to have it's
2684 own set of error texts inserted. The routines are there, just not
2685 used by default when no-err is given.
2688 *) Add support for FreeBSD on IA64.
2689 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2691 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2692 Kerberos function mit_des_cbc_cksum(). Before this change,
2693 the value returned by DES_cbc_cksum() was like the one from
2694 mit_des_cbc_cksum(), except the bytes were swapped.
2695 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2697 *) Allow an application to disable the automatic SSL chain building.
2698 Before this a rather primitive chain build was always performed in
2699 ssl3_output_cert_chain(): an application had no way to send the
2700 correct chain if the automatic operation produced an incorrect result.
2702 Now the chain builder is disabled if either:
2704 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2706 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2708 The reasoning behind this is that an application would not want the
2709 auto chain building to take place if extra chain certificates are
2710 present and it might also want a means of sending no additional
2711 certificates (for example the chain has two certificates and the
2715 *) Add the possibility to build without the ENGINE framework.
2716 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2718 *) Under Win32 gmtime() can return NULL: check return value in
2719 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2722 *) DSA routines: under certain error conditions uninitialized BN objects
2723 could be freed. Solution: make sure initialization is performed early
2724 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2725 Nils Larsch <nla@trustcenter.de> via PR#459)
2728 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2729 checked on reconnect on the client side, therefore session resumption
2730 could still fail with a "ssl session id is different" error. This
2731 behaviour is masked when SSL_OP_ALL is used due to
2732 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2733 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2734 followup to PR #377.
2737 *) IA-32 assembler support enhancements: unified ELF targets, support
2738 for SCO/Caldera platforms, fix for Cygwin shared build.
2741 *) Add support for FreeBSD on sparc64. As a consequence, support for
2742 FreeBSD on non-x86 processors is separate from x86 processors on
2743 the config script, much like the NetBSD support.
2744 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2746 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2748 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2751 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2752 code (06) was taken as the first octet of the session ID and the last
2753 octet was ignored consequently. As a result SSLv2 client side session
2754 caching could not have worked due to the session ID mismatch between
2756 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2760 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2761 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2765 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2766 seems that in spite of existing for more than a year, many application
2767 author have done nothing to provide the necessary callbacks, which
2768 means that this particular engine will not work properly anywhere.
2769 This is a very unfortunate situation which forces us, in the name
2770 of usability, to give the hw_ncipher.c a static lock, which is part
2772 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2773 appear in 0.9.8 or later. We EXPECT application authors to have
2774 dealt properly with this when 0.9.8 is released (unless we actually
2775 make such changes in the libcrypto locking code that changes will
2776 have to be made anyway).
2779 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2780 octets have been read, EOF or an error occurs. Without this change
2781 some truncated ASN1 structures will not produce an error.
2784 *) Disable Heimdal support, since it hasn't been fully implemented.
2785 Still give the possibility to force the use of Heimdal, but with
2786 warnings and a request that patches get sent to openssl-dev.
2789 *) Add the VC-CE target, introduce the WINCE sysname, and add
2790 INSTALL.WCE and appropriate conditionals to make it build.
2791 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2793 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2794 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2795 edit numbers of the version.
2796 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2798 *) Introduce safe string copy and catenation functions
2799 (BUF_strlcpy() and BUF_strlcat()).
2800 [Ben Laurie (CHATS) and Richard Levitte]
2802 *) Avoid using fixed-size buffers for one-line DNs.
2803 [Ben Laurie (CHATS)]
2805 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2806 resizing buffers containing secrets, and use where appropriate.
2807 [Ben Laurie (CHATS)]
2809 *) Avoid using fixed size buffers for configuration file location.
2810 [Ben Laurie (CHATS)]
2812 *) Avoid filename truncation for various CA files.
2813 [Ben Laurie (CHATS)]
2815 *) Use sizeof in preference to magic numbers.
2816 [Ben Laurie (CHATS)]
2818 *) Avoid filename truncation in cert requests.
2819 [Ben Laurie (CHATS)]
2821 *) Add assertions to check for (supposedly impossible) buffer
2823 [Ben Laurie (CHATS)]
2825 *) Don't cache truncated DNS entries in the local cache (this could
2826 potentially lead to a spoofing attack).
2827 [Ben Laurie (CHATS)]
2829 *) Fix various buffers to be large enough for hex/decimal
2830 representations in a platform independent manner.
2831 [Ben Laurie (CHATS)]
2833 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2834 resizing buffers containing secrets, and use where appropriate.
2835 [Ben Laurie (CHATS)]
2837 *) Add BIO_indent() to avoid much slightly worrying code to do
2839 [Ben Laurie (CHATS)]
2841 *) Convert sprintf()/BIO_puts() to BIO_printf().
2842 [Ben Laurie (CHATS)]
2844 *) buffer_gets() could terminate with the buffer only half
2846 [Ben Laurie (CHATS)]
2848 *) Add assertions to prevent user-supplied crypto functions from
2849 overflowing internal buffers by having large block sizes, etc.
2850 [Ben Laurie (CHATS)]
2852 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2854 [Ben Laurie (CHATS)]
2856 *) Eliminate unused copy of key in RC4.
2857 [Ben Laurie (CHATS)]
2859 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2860 [Ben Laurie (CHATS)]
2862 *) Fix off-by-one error in EGD path.
2863 [Ben Laurie (CHATS)]
2865 *) If RANDFILE path is too long, ignore instead of truncating.
2866 [Ben Laurie (CHATS)]
2868 *) Eliminate unused and incorrectly sized X.509 structure
2870 [Ben Laurie (CHATS)]
2872 *) Eliminate unused and dangerous function knumber().
2873 [Ben Laurie (CHATS)]
2875 *) Eliminate unused and dangerous structure, KSSL_ERR.
2876 [Ben Laurie (CHATS)]
2878 *) Protect against overlong session ID context length in an encoded
2879 session object. Since these are local, this does not appear to be
2881 [Ben Laurie (CHATS)]
2883 *) Change from security patch (see 0.9.6e below) that did not affect
2884 the 0.9.6 release series:
2886 Remote buffer overflow in SSL3 protocol - an attacker could
2887 supply an oversized master key in Kerberos-enabled versions.
2889 [Ben Laurie (CHATS)]
2891 *) Change the SSL kerb5 codes to match RFC 2712.
2894 *) Make -nameopt work fully for req and add -reqopt switch.
2895 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2897 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2898 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2900 *) Make sure tests can be performed even if the corresponding algorithms
2901 have been removed entirely. This was also the last step to make
2902 OpenSSL compilable with DJGPP under all reasonable conditions.
2903 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2905 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2906 to allow version independent disabling of normally unselected ciphers,
2907 which may be activated as a side-effect of selecting a single cipher.
2909 (E.g., cipher list string "RSA" enables ciphersuites that are left
2910 out of "ALL" because they do not provide symmetric encryption.
2911 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2912 [Lutz Jaenicke, Bodo Moeller]
2914 *) Add appropriate support for separate platform-dependent build
2915 directories. The recommended way to make a platform-dependent
2916 build directory is the following (tested on Linux), maybe with
2919 # Place yourself outside of the OpenSSL source tree. In
2920 # this example, the environment variable OPENSSL_SOURCE
2921 # is assumed to contain the absolute OpenSSL source directory.
2922 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2923 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2924 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2925 mkdir -p `dirname $F`
2926 ln -s $OPENSSL_SOURCE/$F $F
2929 To be absolutely sure not to disturb the source tree, a "make clean"
2930 is a good thing. If it isn't successfull, don't worry about it,
2931 it probably means the source directory is very clean.
2934 *) Make sure any ENGINE control commands make local copies of string
2935 pointers passed to them whenever necessary. Otherwise it is possible
2936 the caller may have overwritten (or deallocated) the original string
2937 data when a later ENGINE operation tries to use the stored values.
2938 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2940 *) Improve diagnostics in file reading and command-line digests.
2941 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2943 *) Add AES modes CFB and OFB to the object database. Correct an
2944 error in AES-CFB decryption.
2947 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2948 allows existing EVP_CIPHER_CTX structures to be reused after
2949 calling EVP_*Final(). This behaviour is used by encryption
2950 BIOs and some applications. This has the side effect that
2951 applications must explicitly clean up cipher contexts with
2952 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2955 *) Check the values of dna and dnb in bn_mul_recursive before calling
2956 bn_mul_comba (a non zero value means the a or b arrays do not contain
2957 n2 elements) and fallback to bn_mul_normal if either is not zero.
2960 *) Fix escaping of non-ASCII characters when using the -subj option
2961 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2964 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2965 form for "surname", serialNumber has no short form.
2966 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2967 therefore remove "mail" short name for "internet 7".
2968 The OID for unique identifiers in X509 certificates is
2969 x500UniqueIdentifier, not uniqueIdentifier.
2970 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2973 *) Add an "init" command to the ENGINE config module and auto initialize
2974 ENGINEs. Without any "init" command the ENGINE will be initialized
2975 after all ctrl commands have been executed on it. If init=1 the
2976 ENGINE is initailized at that point (ctrls before that point are run
2977 on the uninitialized ENGINE and after on the initialized one). If
2978 init=0 then the ENGINE will not be iniatialized at all.
2981 *) Fix the 'app_verify_callback' interface so that the user-defined
2982 argument is actually passed to the callback: In the
2983 SSL_CTX_set_cert_verify_callback() prototype, the callback
2984 declaration has been changed from
2987 int (*cb)(X509_STORE_CTX *,void *);
2988 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2989 i=s->ctx->app_verify_callback(&ctx)
2990 has been changed into
2991 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2993 To update applications using SSL_CTX_set_cert_verify_callback(),
2994 a dummy argument can be added to their callback functions.
2995 [D. K. Smetters <smetters@parc.xerox.com>]
2997 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2998 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3000 *) Add and OPENSSL_LOAD_CONF define which will cause
3001 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3002 This allows older applications to transparently support certain
3003 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3004 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3005 load the config file and OPENSSL_add_all_algorithms_conf() which will
3006 always load it have also been added.
3009 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3010 Adjust NIDs and EVP layer.
3011 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3013 *) Config modules support in openssl utility.
3015 Most commands now load modules from the config file,
3016 though in a few (such as version) this isn't done
3017 because it couldn't be used for anything.
3019 In the case of ca and req the config file used is
3020 the same as the utility itself: that is the -config
3021 command line option can be used to specify an
3025 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3026 use "openssl_conf" if filename is NULL use default openssl config file.
3029 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3030 config section name. Add a new flag to tolerate a missing config file
3031 and move code to CONF_modules_load_file().
3034 *) Support for crypto accelerator cards from Accelerated Encryption
3035 Processing, www.aep.ie. (Use engine 'aep')
3036 The support was copied from 0.9.6c [engine] and adapted/corrected
3037 to work with the new engine framework.
3038 [AEP Inc. and Richard Levitte]
3040 *) Support for SureWare crypto accelerator cards from Baltimore
3041 Technologies. (Use engine 'sureware')
3042 The support was copied from 0.9.6c [engine] and adapted
3043 to work with the new engine framework.
3046 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3047 make the newer ENGINE framework commands for the CHIL engine work.
3048 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3050 *) Make it possible to produce shared libraries on ReliantUNIX.
3051 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3053 *) Add the configuration target debug-linux-ppro.
3054 Make 'openssl rsa' use the general key loading routines
3055 implemented in apps.c, and make those routines able to
3056 handle the key format FORMAT_NETSCAPE and the variant
3058 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3060 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3061 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3063 *) Add -keyform to rsautl, and document -engine.
3064 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3066 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3067 BIO_R_NO_SUCH_FILE error code rather than the generic
3068 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3071 *) Add new functions
3073 ERR_peek_last_error_line
3074 ERR_peek_last_error_line_data.
3075 These are similar to
3078 ERR_peek_error_line_data,
3079 but report on the latest error recorded rather than the first one
3080 still in the error queue.
3081 [Ben Laurie, Bodo Moeller]
3083 *) default_algorithms option in ENGINE config module. This allows things
3085 default_algorithms = ALL
3086 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3089 *) Prelminary ENGINE config module.
3092 *) New experimental application configuration code.
3095 *) Change the AES code to follow the same name structure as all other
3096 symmetric ciphers, and behave the same way. Move everything to
3097 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3098 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3100 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3101 [Ben Laurie and Theo de Raadt]
3103 *) Add option to output public keys in req command.
3104 [Massimiliano Pala madwolf@openca.org]
3106 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3107 (up to about 10% better than before for P-192 and P-224).
3110 *) New functions/macros
3112 SSL_CTX_set_msg_callback(ctx, cb)
3113 SSL_CTX_set_msg_callback_arg(ctx, arg)
3114 SSL_set_msg_callback(ssl, cb)
3115 SSL_set_msg_callback_arg(ssl, arg)
3117 to request calling a callback function
3119 void cb(int write_p, int version, int content_type,
3120 const void *buf, size_t len, SSL *ssl, void *arg)
3122 whenever a protocol message has been completely received
3123 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3124 protocol version according to which the SSL library interprets
3125 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3126 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3127 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3128 specification (change_cipher_spec(20), alert(21), handshake(22)).
3129 'buf' and 'len' point to the actual message, 'ssl' to the
3130 SSL object, and 'arg' is the application-defined value set by
3131 SSL[_CTX]_set_msg_callback_arg().
3133 'openssl s_client' and 'openssl s_server' have new '-msg' options
3134 to enable a callback that displays all protocol messages.
3137 *) Change the shared library support so shared libraries are built as
3138 soon as the corresponding static library is finished, and thereby get
3139 openssl and the test programs linked against the shared library.
3140 This still only happens when the keyword "shard" has been given to
3141 the configuration scripts.
3143 NOTE: shared library support is still an experimental thing, and
3144 backward binary compatibility is still not guaranteed.
3145 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3147 *) Add support for Subject Information Access extension.
3148 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3150 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3151 additional bytes when new memory had to be allocated, not just
3152 when reusing an existing buffer.
3155 *) New command line and configuration option 'utf8' for the req command.
3156 This allows field values to be specified as UTF8 strings.
3159 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3160 runs for the former and machine-readable output for the latter.
3163 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3164 of the e-mail address in the DN (i.e., it will go into a certificate
3165 extension only). The new configuration file option 'email_in_dn = no'
3166 has the same effect.
3167 [Massimiliano Pala madwolf@openca.org]
3169 *) Change all functions with names starting with des_ to be starting
3170 with DES_ instead. Add wrappers that are compatible with libdes,
3171 but are named _ossl_old_des_*. Finally, add macros that map the
3172 des_* symbols to the corresponding _ossl_old_des_* if libdes
3173 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3174 desired, the des_* symbols will be mapped to DES_*, with one
3177 Since we provide two compatibility mappings, the user needs to
3178 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3179 compatibility is desired. The default (i.e., when that macro
3180 isn't defined) is OpenSSL 0.9.6c compatibility.
3182 There are also macros that enable and disable the support of old
3183 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3184 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3185 are defined, the default will apply: to support the old des routines.
3187 In either case, one must include openssl/des.h to get the correct
3188 definitions. Do not try to just include openssl/des_old.h, that
3191 NOTE: This is a major break of an old API into a new one. Software
3192 authors are encouraged to switch to the DES_ style functions. Some
3193 time in the future, des_old.h and the libdes compatibility functions
3194 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3195 default), and then completely removed.
3198 *) Test for certificates which contain unsupported critical extensions.
3199 If such a certificate is found during a verify operation it is
3200 rejected by default: this behaviour can be overridden by either
3201 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3202 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3203 X509_supported_extension() has also been added which returns 1 if a
3204 particular extension is supported.
3207 *) Modify the behaviour of EVP cipher functions in similar way to digests
3208 to retain compatibility with existing code.
3211 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3212 compatibility with existing code. In particular the 'ctx' parameter does
3213 not have to be to be initialized before the call to EVP_DigestInit() and
3214 it is tidied up after a call to EVP_DigestFinal(). New function
3215 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3216 EVP_MD_CTX_copy() changed to not require the destination to be
3217 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3218 requires the destination to be valid.
3220 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3221 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3224 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3225 so that complete 'Handshake' protocol structures are kept in memory
3226 instead of overwriting 'msg_type' and 'length' with 'body' data.
3229 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3230 [Massimo Santin via Richard Levitte]
3232 *) Major restructuring to the underlying ENGINE code. This includes
3233 reduction of linker bloat, separation of pure "ENGINE" manipulation
3234 (initialisation, etc) from functionality dealing with implementations
3235 of specific crypto iterfaces. This change also introduces integrated
3236 support for symmetric ciphers and digest implementations - so ENGINEs
3237 can now accelerate these by providing EVP_CIPHER and EVP_MD
3238 implementations of their own. This is detailed in crypto/engine/README
3239 as it couldn't be adequately described here. However, there are a few
3240 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3241 were changed in the original introduction of ENGINE code have now
3242 reverted back - the hooking from this code to ENGINE is now a good
3243 deal more passive and at run-time, operations deal directly with
3244 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3245 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3246 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3247 they were not being used by the framework as there is no concept of a
3248 BIGNUM_METHOD and they could not be generalised to the new
3249 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3250 ENGINE_cpy() has been removed as it cannot be consistently defined in
3254 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3257 *) Change mkdef.pl to sort symbols that get the same entry number,
3258 and make sure the automatically generated functions ERR_load_*
3259 become part of libeay.num as well.
3262 *) New function SSL_renegotiate_pending(). This returns true once
3263 renegotiation has been requested (either SSL_renegotiate() call
3264 or HelloRequest/ClientHello receveived from the peer) and becomes
3265 false once a handshake has been completed.
3266 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3267 sends a HelloRequest, but does not ensure that a handshake takes
3268 place. SSL_renegotiate_pending() is useful for checking if the
3269 client has followed the request.)
3272 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3273 By default, clients may request session resumption even during
3274 renegotiation (if session ID contexts permit); with this option,
3275 session resumption is possible only in the first handshake.
3277 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3278 more bits available for options that should not be part of
3279 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3282 *) Add some demos for certificate and certificate request creation.
3285 *) Make maximum certificate chain size accepted from the peer application
3286 settable (SSL*_get/set_max_cert_list()), as proposed by
3287 "Douglas E. Engert" <deengert@anl.gov>.
3290 *) Add support for shared libraries for Unixware-7
3291 (Boyd Lynn Gerber <gerberb@zenez.com>).
3294 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3295 be done prior to destruction. Use this to unload error strings from
3296 ENGINEs that load their own error strings. NB: This adds two new API
3297 functions to "get" and "set" this destroy handler in an ENGINE.
3300 *) Alter all existing ENGINE implementations (except "openssl" and
3301 "openbsd") to dynamically instantiate their own error strings. This
3302 makes them more flexible to be built both as statically-linked ENGINEs
3303 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3304 Also, add stub code to each that makes building them as self-contained
3305 shared-libraries easier (see README.ENGINE).
3308 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3309 implementations into applications that are completely implemented in
3310 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3311 commands that can be used to configure what shared-library to load and
3312 to control aspects of the way it is handled. Also, made an update to
3313 the README.ENGINE file that brings its information up-to-date and
3314 provides some information and instructions on the "dynamic" ENGINE
3315 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3318 *) Make it possible to unload ranges of ERR strings with a new
3319 "ERR_unload_strings" function.
3322 *) Add a copy() function to EVP_MD.
3325 *) Make EVP_MD routines take a context pointer instead of just the
3326 md_data void pointer.
3329 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3330 that the digest can only process a single chunk of data
3331 (typically because it is provided by a piece of
3332 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3333 is only going to provide a single chunk of data, and hence the
3334 framework needn't accumulate the data for oneshot drivers.
3337 *) As with "ERR", make it possible to replace the underlying "ex_data"
3338 functions. This change also alters the storage and management of global
3339 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3340 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3341 index counters. The API functions that use this state have been changed
3342 to take a "class_index" rather than pointers to the class's local STACK
3343 and counter, and there is now an API function to dynamically create new
3344 classes. This centralisation allows us to (a) plug a lot of the
3345 thread-safety problems that existed, and (b) makes it possible to clean
3346 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3347 such data would previously have always leaked in application code and
3348 workarounds were in place to make the memory debugging turn a blind eye
3349 to it. Application code that doesn't use this new function will still
3350 leak as before, but their memory debugging output will announce it now
3351 rather than letting it slide.
3353 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3354 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3355 has a return value to indicate success or failure.
3358 *) Make it possible to replace the underlying "ERR" functions such that the
3359 global state (2 LHASH tables and 2 locks) is only used by the "default"
3360 implementation. This change also adds two functions to "get" and "set"
3361 the implementation prior to it being automatically set the first time
3362 any other ERR function takes place. Ie. an application can call "get",
3363 pass the return value to a module it has just loaded, and that module
3364 can call its own "set" function using that value. This means the
3365 module's "ERR" operations will use (and modify) the error state in the
3366 application and not in its own statically linked copy of OpenSSL code.
3369 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3370 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3371 the operation, and provides a more encapsulated way for external code
3372 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3373 to use these functions rather than manually incrementing the counts.
3375 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3378 *) Add EVP test program.
3381 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3384 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3385 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3386 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3387 These allow a CRL to be built without having to access X509_CRL fields
3388 directly. Modify 'ca' application to use new functions.
3391 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3392 bug workarounds. Rollback attack detection is a security feature.
3393 The problem will only arise on OpenSSL servers when TLSv1 is not
3394 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3395 Software authors not wanting to support TLSv1 will have special reasons
3396 for their choice and can explicitly enable this option.
3397 [Bodo Moeller, Lutz Jaenicke]
3399 *) Rationalise EVP so it can be extended: don't include a union of
3400 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3401 (similar to those existing for EVP_CIPHER_CTX).
3406 EVP_MD_CTX_init(&md); /* new function call */
3407 EVP_DigestInit(&md, EVP_sha1());
3408 EVP_DigestUpdate(&md, in, len);
3409 EVP_DigestFinal(&md, out, NULL);
3410 EVP_MD_CTX_cleanup(&md); /* new function call */
3414 *) Make DES key schedule conform to the usual scheme, as well as
3415 correcting its structure. This means that calls to DES functions
3416 now have to pass a pointer to a des_key_schedule instead of a
3417 plain des_key_schedule (which was actually always a pointer
3420 des_key_schedule ks;
3422 des_set_key_checked(..., &ks);
3423 des_ncbc_encrypt(..., &ks, ...);
3425 (Note that a later change renames 'des_...' into 'DES_...'.)
3428 *) Initial reduction of linker bloat: the use of some functions, such as
3429 PEM causes large amounts of unused functions to be linked in due to
3430 poor organisation. For example pem_all.c contains every PEM function
3431 which has a knock on effect of linking in large amounts of (unused)
3432 ASN1 code. Grouping together similar functions and splitting unrelated
3433 functions prevents this.
3436 *) Cleanup of EVP macros.
3439 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3440 correct _ecb suffix.
3443 *) Add initial OCSP responder support to ocsp application. The
3444 revocation information is handled using the text based index
3445 use by the ca application. The responder can either handle
3446 requests generated internally, supplied in files (for example
3447 via a CGI script) or using an internal minimal server.
3450 *) Add configuration choices to get zlib compression for TLS.
3453 *) Changes to Kerberos SSL for RFC 2712 compliance:
3454 1. Implemented real KerberosWrapper, instead of just using
3455 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3456 2. Implemented optional authenticator field of KerberosWrapper.
3458 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3459 and authenticator structs; see crypto/krb5/.
3461 Generalized Kerberos calls to support multiple Kerberos libraries.
3462 [Vern Staats <staatsvr@asc.hpc.mil>,
3463 Jeffrey Altman <jaltman@columbia.edu>
3464 via Richard Levitte]
3466 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3467 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3468 values for each of the key sizes rather than having just
3469 parameters (and 'speed' generating keys each time).
3472 *) Speed up EVP routines.
3475 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3476 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3477 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3478 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3480 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3481 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3482 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3485 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3487 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3490 *) Added the OS2-EMX target.
3491 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3493 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3494 to support NCONF routines in extension code. New function CONF_set_nconf()
3495 to allow functions which take an NCONF to also handle the old LHASH
3496 structure: this means that the old CONF compatible routines can be
3497 retained (in particular wrt extensions) without having to duplicate the
3498 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3501 *) Enhance the general user interface with mechanisms for inner control
3502 and with possibilities to have yes/no kind of prompts.
3505 *) Change all calls to low level digest routines in the library and
3506 applications to use EVP. Add missing calls to HMAC_cleanup() and
3507 don't assume HMAC_CTX can be copied using memcpy().
3508 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3510 *) Add the possibility to control engines through control names but with
3511 arbitrary arguments instead of just a string.
3512 Change the key loaders to take a UI_METHOD instead of a callback
3513 function pointer. NOTE: this breaks binary compatibility with earlier
3514 versions of OpenSSL [engine].
3515 Adapt the nCipher code for these new conditions and add a card insertion
3519 *) Enhance the general user interface with mechanisms to better support
3520 dialog box interfaces, application-defined prompts, the possibility
3521 to use defaults (for example default passwords from somewhere else)
3522 and interrupts/cancellations.
3525 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3526 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3529 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3530 tidy up some unnecessarily weird code in 'sk_new()').
3531 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3533 *) Change the key loading routines for ENGINEs to use the same kind
3534 callback (pem_password_cb) as all other routines that need this
3538 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3539 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3540 than this minimum value is recommended.
3543 *) New random seeder for OpenVMS, using the system process statistics
3544 that are easily reachable.
3547 *) Windows apparently can't transparently handle global
3548 variables defined in DLLs. Initialisations such as:
3550 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3552 wont compile. This is used by the any applications that need to
3553 declare their own ASN1 modules. This was fixed by adding the option
3554 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3555 needed for static libraries under Win32.
3558 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3559 setting of purpose and trust fields. New X509_STORE trust and
3560 purpose functions and tidy up setting in other SSL functions.
3563 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3564 structure. These are inherited by X509_STORE_CTX when it is
3565 initialised. This allows various defaults to be set in the
3566 X509_STORE structure (such as flags for CRL checking and custom
3567 purpose or trust settings) for functions which only use X509_STORE_CTX
3568 internally such as S/MIME.
3570 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3571 trust settings if they are not set in X509_STORE. This allows X509_STORE
3572 purposes and trust (in S/MIME for example) to override any set by default.
3574 Add command line options for CRL checking to smime, s_client and s_server
3578 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3579 are set then the CRL is looked up in the X509_STORE structure and
3580 its validity and signature checked, then if the certificate is found
3581 in the CRL the verify fails with a revoked error.
3583 Various new CRL related callbacks added to X509_STORE_CTX structure.
3585 Command line options added to 'verify' application to support this.
3587 This needs some additional work, such as being able to handle multiple
3588 CRLs with different times, extension based lookup (rather than just
3589 by subject name) and ultimately more complete V2 CRL extension
3593 *) Add a general user interface API (crypto/ui/). This is designed
3594 to replace things like des_read_password and friends (backward
3595 compatibility functions using this new API are provided).
3596 The purpose is to remove prompting functions from the DES code
3597 section as well as provide for prompting through dialog boxes in
3598 a window system and the like.
3601 *) Add "ex_data" support to ENGINE so implementations can add state at a
3602 per-structure level rather than having to store it globally.
3605 *) Make it possible for ENGINE structures to be copied when retrieved by
3606 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3607 This causes the "original" ENGINE structure to act like a template,
3608 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3609 operational state can be localised to each ENGINE structure, despite the
3610 fact they all share the same "methods". New ENGINE structures returned in
3611 this case have no functional references and the return value is the single
3612 structural reference. This matches the single structural reference returned
3613 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3617 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3618 needs to match any other type at all we need to manually clear the
3622 *) Changes to the "openssl engine" utility to include;
3623 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3624 about an ENGINE's available control commands.
3625 - executing control commands from command line arguments using the
3626 '-pre' and '-post' switches. '-post' is only used if '-t' is
3627 specified and the ENGINE is successfully initialised. The syntax for
3628 the individual commands are colon-separated, for example;
3629 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3632 *) New dynamic control command support for ENGINEs. ENGINEs can now
3633 declare their own commands (numbers), names (strings), descriptions,
3634 and input types for run-time discovery by calling applications. A
3635 subset of these commands are implicitly classed as "executable"
3636 depending on their input type, and only these can be invoked through
3637 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3638 can be based on user input, config files, etc). The distinction is
3639 that "executable" commands cannot return anything other than a boolean
3640 result and can only support numeric or string input, whereas some
3641 discoverable commands may only be for direct use through
3642 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3643 pointers, or other custom uses. The "executable" commands are to
3644 support parameterisations of ENGINE behaviour that can be
3645 unambiguously defined by ENGINEs and used consistently across any
3646 OpenSSL-based application. Commands have been added to all the
3647 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3648 control over shared-library paths without source code alterations.
3651 *) Changed all ENGINE implementations to dynamically allocate their
3652 ENGINEs rather than declaring them statically. Apart from this being
3653 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3654 this also allows the implementations to compile without using the
3655 internal engine_int.h header.
3658 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3659 'const' value. Any code that should be able to modify a RAND_METHOD
3660 should already have non-const pointers to it (ie. they should only
3661 modify their own ones).
3664 *) Made a variety of little tweaks to the ENGINE code.
3665 - "atalla" and "ubsec" string definitions were moved from header files
3666 to C code. "nuron" string definitions were placed in variables
3667 rather than hard-coded - allowing parameterisation of these values
3668 later on via ctrl() commands.
3669 - Removed unused "#if 0"'d code.
3670 - Fixed engine list iteration code so it uses ENGINE_free() to release
3671 structural references.
3672 - Constified the RAND_METHOD element of ENGINE structures.
3673 - Constified various get/set functions as appropriate and added
3674 missing functions (including a catch-all ENGINE_cpy that duplicates
3675 all ENGINE values onto a new ENGINE except reference counts/state).
3676 - Removed NULL parameter checks in get/set functions. Setting a method
3677 or function to NULL is a way of cancelling out a previously set
3678 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3679 and doesn't justify the extra error symbols and code.
3680 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3681 flags from engine_int.h to engine.h.
3682 - Changed prototypes for ENGINE handler functions (init(), finish(),
3683 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3686 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3687 to the algorithm using long division. The binary algorithm can be
3688 used only if the modulus is odd. On 32-bit systems, it is faster
3689 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3690 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3691 up to 450 bits. In 64-bit environments, the binary algorithm
3692 appears to be advantageous for much longer moduli; here we use it
3693 for moduli up to 2048 bits.
3696 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3697 could not support the combine flag in choice fields.
3700 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3701 extensions from a certificate request to the certificate.
3704 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3705 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3706 file: this allows the display of the certificate about to be
3707 signed to be customised, to allow certain fields to be included
3708 or excluded and extension details. The old system didn't display
3709 multicharacter strings properly, omitted fields not in the policy
3710 and couldn't display additional details such as extensions.
3713 *) Function EC_POINTs_mul for multiple scalar multiplication
3714 of an arbitrary number of elliptic curve points
3715 \sum scalars[i]*points[i],
3716 optionally including the generator defined for the EC_GROUP:
3717 scalar*generator + \sum scalars[i]*points[i].
3719 EC_POINT_mul is a simple wrapper function for the typical case
3720 that the point list has just one item (besides the optional
3724 *) First EC_METHODs for curves over GF(p):
3726 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3727 operations and provides various method functions that can also
3728 operate with faster implementations of modular arithmetic.
3730 EC_GFp_mont_method() reuses most functions that are part of
3731 EC_GFp_simple_method, but uses Montgomery arithmetic.
3733 [Bodo Moeller; point addition and point doubling
3734 implementation directly derived from source code provided by
3735 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3737 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3738 crypto/ec/ec_lib.c):
3740 Curves are EC_GROUP objects (with an optional group generator)
3741 based on EC_METHODs that are built into the library.
3743 Points are EC_POINT objects based on EC_GROUP objects.
3745 Most of the framework would be able to handle curves over arbitrary
3746 finite fields, but as there are no obvious types for fields other
3747 than GF(p), some functions are limited to that for now.
3750 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3751 that the file contains a complete HTTP response.
3754 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3755 change the def and num file printf format specifier from "%-40sXXX"
3756 to "%-39s XXX". The latter will always guarantee a space after the
3757 field while the former will cause them to run together if the field
3758 is 40 of more characters long.
3761 *) Constify the cipher and digest 'method' functions and structures
3762 and modify related functions to take constant EVP_MD and EVP_CIPHER
3766 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3767 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3770 *) Modify EVP_Digest*() routines so they now return values. Although the
3771 internal software routines can never fail additional hardware versions
3775 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3777 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3778 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3781 ERR_R_NESTED_ASN1_ERROR
3783 ERR_R_MISSING_ASN1_EOS
3784 were 4 .. 9, conflicting with
3785 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3787 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3788 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3790 Add new error code 'ERR_R_INTERNAL_ERROR'.
3793 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3797 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3798 sets the subject name for a new request or supersedes the
3799 subject name in a given request. Formats that can be parsed are
3800 'CN=Some Name, OU=myOU, C=IT'
3802 'CN=Some Name/OU=myOU/C=IT'.
3804 Add options '-batch' and '-verbose' to 'openssl req'.
3805 [Massimiliano Pala <madwolf@hackmasters.net>]
3807 *) Introduce the possibility to access global variables through
3808 functions on platform were that's the best way to handle exporting
3809 global variables in shared libraries. To enable this functionality,
3810 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3811 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3812 is normally done by Configure or something similar).
3814 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3815 in the source file (foo.c) like this:
3817 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3818 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3820 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3821 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3823 OPENSSL_DECLARE_GLOBAL(int,foo);
3824 #define foo OPENSSL_GLOBAL_REF(foo)
3825 OPENSSL_DECLARE_GLOBAL(double,bar);
3826 #define bar OPENSSL_GLOBAL_REF(bar)
3828 The #defines are very important, and therefore so is including the
3829 header file everywhere where the defined globals are used.
3831 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3832 of ASN.1 items, but that structure is a bit different.
3834 The largest change is in util/mkdef.pl which has been enhanced with
3835 better and easier to understand logic to choose which symbols should
3836 go into the Windows .def files as well as a number of fixes and code
3837 cleanup (among others, algorithm keywords are now sorted
3838 lexicographically to avoid constant rewrites).
3841 *) In BN_div() keep a copy of the sign of 'num' before writing the
3842 result to 'rm' because if rm==num the value will be overwritten
3843 and produce the wrong result if 'num' is negative: this caused
3844 problems with BN_mod() and BN_nnmod().
3847 *) Function OCSP_request_verify(). This checks the signature on an
3848 OCSP request and verifies the signer certificate. The signer
3849 certificate is just checked for a generic purpose and OCSP request
3853 *) Add OCSP_check_validity() function to check the validity of OCSP
3854 responses. OCSP responses are prepared in real time and may only
3855 be a few seconds old. Simply checking that the current time lies
3856 between thisUpdate and nextUpdate max reject otherwise valid responses
3857 caused by either OCSP responder or client clock inaccuracy. Instead
3858 we allow thisUpdate and nextUpdate to fall within a certain period of
3859 the current time. The age of the response can also optionally be
3860 checked. Two new options -validity_period and -status_age added to
3864 *) If signature or public key algorithm is unrecognized print out its
3865 OID rather that just UNKNOWN.
3868 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3869 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3870 ID to be generated from the issuer certificate alone which can then be
3871 passed to OCSP_id_issuer_cmp().
3874 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3875 ASN1 modules to export functions returning ASN1_ITEM pointers
3876 instead of the ASN1_ITEM structures themselves. This adds several
3877 new macros which allow the underlying ASN1 function/structure to
3878 be accessed transparently. As a result code should not use ASN1_ITEM
3879 references directly (such as &X509_it) but instead use the relevant
3880 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3881 use of the new ASN1 code on platforms where exporting structures
3882 is problematical (for example in shared libraries) but exporting
3883 functions returning pointers to structures is not.
3886 *) Add support for overriding the generation of SSL/TLS session IDs.
3887 These callbacks can be registered either in an SSL_CTX or per SSL.
3888 The purpose of this is to allow applications to control, if they wish,
3889 the arbitrary values chosen for use as session IDs, particularly as it
3890 can be useful for session caching in multiple-server environments. A
3891 command-line switch for testing this (and any client code that wishes
3892 to use such a feature) has been added to "s_server".
3893 [Geoff Thorpe, Lutz Jaenicke]
3895 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3896 of the form '#if defined(...) || defined(...) || ...' and
3897 '#if !defined(...) && !defined(...) && ...'. This also avoids
3898 the growing number of special cases it was previously handling.
3901 *) Make all configuration macros available for application by making
3902 sure they are available in opensslconf.h, by giving them names starting
3903 with "OPENSSL_" to avoid conflicts with other packages and by making
3904 sure e_os2.h will cover all platform-specific cases together with
3906 Additionally, it is now possible to define configuration/platform-
3907 specific names (called "system identities"). In the C code, these
3908 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3909 macro with the name beginning with "OPENSSL_SYS_", which is determined
3910 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3914 *) New option -set_serial to 'req' and 'x509' this allows the serial
3915 number to use to be specified on the command line. Previously self
3916 signed certificates were hard coded with serial number 0 and the
3917 CA options of 'x509' had to use a serial number in a file which was
3921 *) New options to 'ca' utility to support V2 CRL entry extensions.
3922 Currently CRL reason, invalidity date and hold instruction are
3923 supported. Add new CRL extensions to V3 code and some new objects.
3926 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3927 disable standard block padding (aka PKCS#5 padding) in the EVP
3928 API, which was previously mandatory. This means that the data is
3929 not padded in any way and so the total length much be a multiple
3930 of the block size, otherwise an error occurs.
3933 *) Initial (incomplete) OCSP SSL support.
3936 *) New function OCSP_parse_url(). This splits up a URL into its host,
3937 port and path components: primarily to parse OCSP URLs. New -url
3938 option to ocsp utility.
3941 *) New nonce behavior. The return value of OCSP_check_nonce() now
3942 reflects the various checks performed. Applications can decide
3943 whether to tolerate certain situations such as an absent nonce
3944 in a response when one was present in a request: the ocsp application
3945 just prints out a warning. New function OCSP_add1_basic_nonce()
3946 this is to allow responders to include a nonce in a response even if
3947 the request is nonce-less.
3950 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3951 skipped when using openssl x509 multiple times on a single input file,
3952 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3955 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3956 set string type: to handle setting ASN1_TIME structures. Fix ca
3957 utility to correctly initialize revocation date of CRLs.
3960 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3961 the clients preferred ciphersuites and rather use its own preferences.
3962 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3963 Internet Explorer by ensuring unchanged hash method during stepup.
3964 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3967 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3968 to aes and add a new 'exist' option to print out symbols that don't
3972 *) Additional options to ocsp utility to allow flags to be set and
3973 additional certificates supplied.
3976 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3977 OCSP client a number of certificate to only verify the response
3981 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3982 handle the new API. Currently only ECB, CBC modes supported. Add new
3985 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3986 Encryption Standard (AES) Ciphersuites for Transport Layer
3987 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3988 not enabled by default and were not part of the "ALL" ciphersuite
3989 alias because they were not yet official; they could be
3990 explicitly requested by specifying the "AESdraft" ciphersuite
3991 group alias. In the final release of OpenSSL 0.9.7, the group
3992 alias is called "AES" and is part of "ALL".)
3993 [Ben Laurie, Steve Henson, Bodo Moeller]
3995 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3996 request to response.
3999 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4000 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4001 extract information from a certificate request. OCSP_response_create()
4002 creates a response and optionally adds a basic response structure.
4003 OCSP_basic_add1_status() adds a complete single response to a basic
4004 response and returns the OCSP_SINGLERESP structure just added (to allow
4005 extensions to be included for example). OCSP_basic_add1_cert() adds a
4006 certificate to a basic response and OCSP_basic_sign() signs a basic
4007 response with various flags. New helper functions ASN1_TIME_check()
4008 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4009 (converts ASN1_TIME to GeneralizedTime).
4012 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4013 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4014 structure from a certificate. X509_pubkey_digest() digests the public_key
4015 contents: this is used in various key identifiers.
4018 *) Make sk_sort() tolerate a NULL argument.
4019 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4021 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4022 passed by the function are trusted implicitly. If any of them signed the
4023 response then it is assumed to be valid and is not verified.
4026 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4027 to data. This was previously part of the PKCS7 ASN1 code. This
4028 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4029 [Steve Henson, reported by Kenneth R. Robinette
4030 <support@securenetterm.com>]
4032 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4033 routines: without these tracing memory leaks is very painful.
4034 Fix leaks in PKCS12 and PKCS7 routines.
4037 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4038 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4039 effectively meant GeneralizedTime would never be used. Now it
4040 is initialised to -1 but X509_time_adj() now has to check the value
4041 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4042 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4043 [Steve Henson, reported by Kenneth R. Robinette
4044 <support@securenetterm.com>]
4046 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4047 result in a zero length in the ASN1_INTEGER structure which was
4048 not consistent with the structure when d2i_ASN1_INTEGER() was used
4049 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4050 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4051 where it did not print out a minus for negative ASN1_INTEGER.
4054 *) Add summary printout to ocsp utility. The various functions which
4055 convert status values to strings have been renamed to:
4056 OCSP_response_status_str(), OCSP_cert_status_str() and
4057 OCSP_crl_reason_str() and are no longer static. New options
4058 to verify nonce values and to disable verification. OCSP response
4059 printout format cleaned up.
4062 *) Add additional OCSP certificate checks. These are those specified
4063 in RFC2560. This consists of two separate checks: the CA of the
4064 certificate being checked must either be the OCSP signer certificate
4065 or the issuer of the OCSP signer certificate. In the latter case the
4066 OCSP signer certificate must contain the OCSP signing extended key
4067 usage. This check is performed by attempting to match the OCSP
4068 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4069 in the OCSP_CERTID structures of the response.
4072 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4073 and related routines. This uses the standard OpenSSL certificate
4074 verify routines to perform initial checks (just CA validity) and
4075 to obtain the certificate chain. Then additional checks will be
4076 performed on the chain. Currently the root CA is checked to see
4077 if it is explicitly trusted for OCSP signing. This is used to set
4078 a root CA as a global signing root: that is any certificate that
4079 chains to that CA is an acceptable OCSP signing certificate.
4082 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4083 extensions from a separate configuration file.
4084 As when reading extensions from the main configuration file,
4085 the '-extensions ...' option may be used for specifying the
4087 [Massimiliano Pala <madwolf@comune.modena.it>]
4089 *) New OCSP utility. Allows OCSP requests to be generated or
4090 read. The request can be sent to a responder and the output
4091 parsed, outputed or printed in text form. Not complete yet:
4092 still needs to check the OCSP response validity.
4095 *) New subcommands for 'openssl ca':
4096 'openssl ca -status <serial>' prints the status of the cert with
4097 the given serial number (according to the index file).
4098 'openssl ca -updatedb' updates the expiry status of certificates
4100 [Massimiliano Pala <madwolf@comune.modena.it>]
4102 *) New '-newreq-nodes' command option to CA.pl. This is like
4103 '-newreq', but calls 'openssl req' with the '-nodes' option
4104 so that the resulting key is not encrypted.
4105 [Damien Miller <djm@mindrot.org>]
4107 *) New configuration for the GNU Hurd.
4108 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4110 *) Initial code to implement OCSP basic response verify. This
4111 is currently incomplete. Currently just finds the signer's
4112 certificate and verifies the signature on the response.
4115 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4116 value of OPENSSLDIR. This is available via the new '-d' option
4117 to 'openssl version', and is also included in 'openssl version -a'.
4120 *) Allowing defining memory allocation callbacks that will be given
4121 file name and line number information in additional arguments
4122 (a const char* and an int). The basic functionality remains, as
4123 well as the original possibility to just replace malloc(),
4124 realloc() and free() by functions that do not know about these
4125 additional arguments. To register and find out the current
4126 settings for extended allocation functions, the following
4127 functions are provided:
4129 CRYPTO_set_mem_ex_functions
4130 CRYPTO_set_locked_mem_ex_functions
4131 CRYPTO_get_mem_ex_functions
4132 CRYPTO_get_locked_mem_ex_functions
4134 These work the same way as CRYPTO_set_mem_functions and friends.
4135 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4136 extended allocation function is enabled.
4137 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4138 a conventional allocation function is enabled.
4139 [Richard Levitte, Bodo Moeller]
4141 *) Finish off removing the remaining LHASH function pointer casts.
4142 There should no longer be any prototype-casting required when using
4143 the LHASH abstraction, and any casts that remain are "bugs". See
4144 the callback types and macros at the head of lhash.h for details
4145 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4148 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4149 If /dev/[u]random devices are not available or do not return enough
4150 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4152 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4153 /etc/entropy will be queried once each in this sequence, quering stops
4154 when enough entropy was collected without querying more sockets.
4157 *) Change the Unix RAND_poll() variant to be able to poll several
4158 random devices, as specified by DEVRANDOM, until a sufficient amount
4159 of data has been collected. We spend at most 10 ms on each file
4160 (select timeout) and read in non-blocking mode. DEVRANDOM now
4161 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4162 (previously it was just the string "/dev/urandom"), so on typical
4163 platforms the 10 ms delay will never occur.
4164 Also separate out the Unix variant to its own file, rand_unix.c.
4165 For VMS, there's a currently-empty rand_vms.c.
4168 *) Move OCSP client related routines to ocsp_cl.c. These
4169 provide utility functions which an application needing
4170 to issue a request to an OCSP responder and analyse the
4171 response will typically need: as opposed to those which an
4172 OCSP responder itself would need which will be added later.
4174 OCSP_request_sign() signs an OCSP request with an API similar
4175 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4176 response. OCSP_response_get1_basic() extracts basic response
4177 from response. OCSP_resp_find_status(): finds and extracts status
4178 information from an OCSP_CERTID structure (which will be created
4179 when the request structure is built). These are built from lower
4180 level functions which work on OCSP_SINGLERESP structures but
4181 wont normally be used unless the application wishes to examine
4182 extensions in the OCSP response for example.
4184 Replace nonce routines with a pair of functions.
4185 OCSP_request_add1_nonce() adds a nonce value and optionally
4186 generates a random value. OCSP_check_nonce() checks the
4187 validity of the nonce in an OCSP response.
4190 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4191 This doesn't copy the supplied OCSP_CERTID and avoids the
4192 need to free up the newly created id. Change return type
4193 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4194 This can then be used to add extensions to the request.
4195 Deleted OCSP_request_new(), since most of its functionality
4196 is now in OCSP_REQUEST_new() (and the case insensitive name
4197 clash) apart from the ability to set the request name which
4198 will be added elsewhere.
4201 *) Update OCSP API. Remove obsolete extensions argument from
4202 various functions. Extensions are now handled using the new
4203 OCSP extension code. New simple OCSP HTTP function which
4204 can be used to send requests and parse the response.
4207 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4208 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4209 uses the special reorder version of SET OF to sort the attributes
4210 and reorder them to match the encoded order. This resolves a long
4211 standing problem: a verify on a PKCS7 structure just after signing
4212 it used to fail because the attribute order did not match the
4213 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4214 it uses the received order. This is necessary to tolerate some broken
4215 software that does not order SET OF. This is handled by encoding
4216 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4217 to produce the required SET OF.
4220 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4221 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4222 files to get correct declarations of the ASN.1 item variables.
4225 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4226 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4227 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4228 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4229 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4230 ASN1_ITEM and no wrapper functions.
4233 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4234 replace the old function pointer based I/O routines. Change most of
4235 the *_d2i_bio() and *_d2i_fp() functions to use these.
4238 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4239 lines, recognice more "algorithms" that can be deselected, and make
4240 it complain about algorithm deselection that isn't recognised.
4243 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4244 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4245 to use new functions. Add NO_ASN1_OLD which can be set to remove
4246 some old style ASN1 functions: this can be used to determine if old
4247 code will still work when these eventually go away.
4250 *) New extension functions for OCSP structures, these follow the
4251 same conventions as certificates and CRLs.
4254 *) New function X509V3_add1_i2d(). This automatically encodes and
4255 adds an extension. Its behaviour can be customised with various
4256 flags to append, replace or delete. Various wrappers added for
4257 certifcates and CRLs.
4260 *) Fix to avoid calling the underlying ASN1 print routine when
4261 an extension cannot be parsed. Correct a typo in the
4262 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4265 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4266 entries for variables.
4269 *) Add functionality to apps/openssl.c for detecting locking
4270 problems: As the program is single-threaded, all we have
4271 to do is register a locking callback using an array for
4272 storing which locks are currently held by the program.
4275 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4276 SSL_get_ex_data_X509_STORE_idx(), which is used in
4277 ssl_verify_cert_chain() and thus can be called at any time
4278 during TLS/SSL handshakes so that thread-safety is essential.
4279 Unfortunately, the ex_data design is not at all suited
4280 for multi-threaded use, so it probably should be abolished.
4283 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4284 [Broadcom, tweaked and integrated by Geoff Thorpe]
4286 *) Move common extension printing code to new function
4287 X509V3_print_extensions(). Reorganise OCSP print routines and
4288 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4291 *) New function X509_signature_print() to remove duplication in some
4295 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4296 set (this was treated exactly the same as SET OF previously). This
4297 is used to reorder the STACK representing the structure to match the
4298 encoding. This will be used to get round a problem where a PKCS7
4299 structure which was signed could not be verified because the STACK
4300 order did not reflect the encoded order.
4303 *) Reimplement the OCSP ASN1 module using the new code.
4306 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4307 for its ASN1 operations. The old style function pointers still exist
4308 for now but they will eventually go away.
4311 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4312 completely replaces the old ASN1 functionality with a table driven
4313 encoder and decoder which interprets an ASN1_ITEM structure describing
4314 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4315 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4316 has also been converted to the new form.
4319 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4320 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4321 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4322 for negative moduli.
4325 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4326 of not touching the result's sign bit.
4329 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4333 *) Changed the LHASH code to use prototypes for callbacks, and created
4334 macros to declare and implement thin (optionally static) functions
4335 that provide type-safety and avoid function pointer casting for the
4336 type-specific callbacks.
4339 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4341 [Veers Staats <staatsvr@asc.hpc.mil>,
4342 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4344 *) Reformat the FAQ so the different questions and answers can be divided
4345 in sections depending on the subject.
4348 *) Have the zlib compression code load ZLIB.DLL dynamically under
4352 *) New function BN_mod_sqrt for computing square roots modulo a prime
4353 (using the probabilistic Tonelli-Shanks algorithm unless
4354 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4355 be handled deterministically).
4356 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4358 *) Make BN_mod_inverse faster by explicitly handling small quotients
4359 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4360 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4363 *) New function BN_kronecker.
4366 *) Fix BN_gcd so that it works on negative inputs; the result is
4367 positive unless both parameters are zero.
4368 Previously something reasonably close to an infinite loop was
4369 possible because numbers could be growing instead of shrinking
4370 in the implementation of Euclid's algorithm.
4373 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4374 sign of the number in question.
4376 Fix BN_is_word(a,w) to work correctly for w == 0.
4378 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4379 because its test if the absolute value of 'a' equals 'w'.
4380 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4381 it exists mostly for use in the implementations of BN_is_zero(),
4382 BN_is_one(), and BN_is_word().
4385 *) New function BN_swap.
4388 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4389 the exponentiation functions are more likely to produce reasonable
4390 results on negative inputs.
4393 *) Change BN_mod_mul so that the result is always non-negative.
4394 Previously, it could be negative if one of the factors was negative;
4395 I don't think anyone really wanted that behaviour.
4398 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4399 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4400 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4401 and add new functions:
4410 BN_mod_lshift1_quick
4414 These functions always generate non-negative results.
4416 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4417 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4419 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4420 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4421 be reduced modulo m.
4422 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4425 The following entry accidentily appeared in the CHANGES file
4426 distributed with OpenSSL 0.9.7. The modifications described in
4427 it do *not* apply to OpenSSL 0.9.7.
4429 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4430 was actually never needed) and in BN_mul(). The removal in BN_mul()
4431 required a small change in bn_mul_part_recursive() and the addition
4432 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4433 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4434 bn_sub_words() and bn_add_words() except they take arrays with
4439 *) In 'openssl passwd', verify passwords read from the terminal
4440 unless the '-salt' option is used (which usually means that
4441 verification would just waste user's time since the resulting
4442 hash is going to be compared with some given password hash)
4443 or the new '-noverify' option is used.
4445 This is an incompatible change, but it does not affect
4446 non-interactive use of 'openssl passwd' (passwords on the command
4447 line, '-stdin' option, '-in ...' option) and thus should not
4451 *) Remove all references to RSAref, since there's no more need for it.
4454 *) Make DSO load along a path given through an environment variable
4455 (SHLIB_PATH) with shl_load().
4458 *) Constify the ENGINE code as a result of BIGNUM constification.
4459 Also constify the RSA code and most things related to it. In a
4460 few places, most notable in the depth of the ASN.1 code, ugly
4461 casts back to non-const were required (to be solved at a later
4465 *) Make it so the openssl application has all engines loaded by default.
4468 *) Constify the BIGNUM routines a little more.
4471 *) Add the following functions:
4473 ENGINE_load_cswift()
4475 ENGINE_load_atalla()
4477 ENGINE_load_builtin_engines()
4479 That way, an application can itself choose if external engines that
4480 are built-in in OpenSSL shall ever be used or not. The benefit is
4481 that applications won't have to be linked with libdl or other dso
4482 libraries unless it's really needed.
4484 Changed 'openssl engine' to load all engines on demand.
4485 Changed the engine header files to avoid the duplication of some
4486 declarations (they differed!).
4489 *) 'openssl engine' can now list capabilities.
4492 *) Better error reporting in 'openssl engine'.
4495 *) Never call load_dh_param(NULL) in s_server.
4498 *) Add engine application. It can currently list engines by name and
4499 identity, and test if they are actually available.
4502 *) Improve RPM specification file by forcing symbolic linking and making
4503 sure the installed documentation is also owned by root.root.
4504 [Damien Miller <djm@mindrot.org>]
4506 *) Give the OpenSSL applications more possibilities to make use of
4507 keys (public as well as private) handled by engines.
4510 *) Add OCSP code that comes from CertCo.
4513 *) Add VMS support for the Rijndael code.
4516 *) Added untested support for Nuron crypto accelerator.
4519 *) Add support for external cryptographic devices. This code was
4520 previously distributed separately as the "engine" branch.
4521 [Geoff Thorpe, Richard Levitte]
4523 *) Rework the filename-translation in the DSO code. It is now possible to
4524 have far greater control over how a "name" is turned into a filename
4525 depending on the operating environment and any oddities about the
4526 different shared library filenames on each system.
4529 *) Support threads on FreeBSD-elf in Configure.
4532 *) Fix for SHA1 assembly problem with MASM: it produces
4533 warnings about corrupt line number information when assembling
4534 with debugging information. This is caused by the overlapping
4536 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4539 NCONF_get_number() has no error checking at all. As a replacement,
4540 NCONF_get_number_e() is defined (_e for "error checking") and is
4541 promoted strongly. The old NCONF_get_number is kept around for
4542 binary backward compatibility.
4543 Make it possible for methods to load from something other than a BIO,
4544 by providing a function pointer that is given a name instead of a BIO.
4545 For example, this could be used to load configuration data from an
4549 *) Fix for non blocking accept BIOs. Added new I/O special reason
4550 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4551 with non blocking I/O was not possible because no retry code was
4552 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4556 *) Added the beginnings of Rijndael support.
4559 *) Fix for bug in DirectoryString mask setting. Add support for
4560 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4561 to allow certificate printing to more controllable, additional
4562 'certopt' option to 'x509' to allow new printing options to be
4566 *) Clean old EAY MD5 hack from e_os.h.
4569 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4571 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4572 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4573 [Joe Orton, Steve Henson]
4575 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4577 *) Fix additional bug revealed by the NISCC test suite:
4579 Stop bug triggering large recursion when presented with
4580 certain ASN.1 tags (CVE-2003-0851)
4583 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4585 *) Fix various bugs revealed by running the NISCC test suite:
4587 Stop out of bounds reads in the ASN1 code when presented with
4588 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4590 If verify callback ignores invalid public key errors don't try to check
4591 certificate signature with the NULL public key.
4595 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4596 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4600 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4601 extra data after the compression methods not only for TLS 1.0
4602 but also for SSL 3.0 (as required by the specification).
4603 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4605 *) Change X509_certificate_type() to mark the key as exported/exportable
4606 when it's 512 *bits* long, not 512 bytes.
4609 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4611 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4612 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4613 a protocol version number mismatch like a decryption error
4614 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4617 *) Turn on RSA blinding by default in the default implementation
4618 to avoid a timing attack. Applications that don't want it can call
4619 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4620 They would be ill-advised to do so in most cases.
4621 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4623 *) Change RSA blinding code so that it works when the PRNG is not
4624 seeded (in this case, the secret RSA exponent is abused as
4625 an unpredictable seed -- if it is not unpredictable, there
4626 is no point in blinding anyway). Make RSA blinding thread-safe
4627 by remembering the creator's thread ID in rsa->blinding and
4628 having all other threads use local one-time blinding factors
4629 (this requires more computation than sharing rsa->blinding, but
4630 avoids excessive locking; and if an RSA object is not shared
4631 between threads, blinding will still be very fast).
4634 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4636 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4637 via timing by performing a MAC computation even if incorrrect
4638 block cipher padding has been found. This is a countermeasure
4639 against active attacks where the attacker has to distinguish
4640 between bad padding and a MAC verification error. (CVE-2003-0078)
4642 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4643 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4644 Martin Vuagnoux (EPFL, Ilion)]
4646 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4648 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4649 memory from it's contents. This is done with a counter that will
4650 place alternating values in each byte. This can be used to solve
4651 two issues: 1) the removal of calls to memset() by highly optimizing
4652 compilers, and 2) cleansing with other values than 0, since those can
4653 be read through on certain media, for example a swap space on disk.
4656 *) Bugfix: client side session caching did not work with external caching,
4657 because the session->cipher setting was not restored when reloading
4658 from the external cache. This problem was masked, when
4659 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4660 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4663 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4664 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4665 [Zeev Lieber <zeev-l@yahoo.com>]
4667 *) Undo an undocumented change introduced in 0.9.6e which caused
4668 repeated calls to OpenSSL_add_all_ciphers() and
4669 OpenSSL_add_all_digests() to be ignored, even after calling
4673 *) Change the default configuration reader to deal with last line not
4674 being properly terminated.
4677 *) Change X509_NAME_cmp() so it applies the special rules on handling
4678 DN values that are of type PrintableString, as well as RDNs of type
4679 emailAddress where the value has the type ia5String.
4680 [stefank@valicert.com via Richard Levitte]
4682 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4683 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4684 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4685 the bitwise-OR of the two for use by the majority of applications
4686 wanting this behaviour, and update the docs. The documented
4687 behaviour and actual behaviour were inconsistent and had been
4688 changing anyway, so this is more a bug-fix than a behavioural
4690 [Geoff Thorpe, diagnosed by Nadav Har'El]
4692 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4693 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4696 *) Fix initialization code race conditions in
4697 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4698 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4699 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4700 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4701 ssl2_get_cipher_by_char(),
4702 ssl3_get_cipher_by_char().
4703 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4705 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4706 the cached sessions are flushed, as the remove_cb() might use ex_data
4707 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4708 (see [openssl.org #212]).
4709 [Geoff Thorpe, Lutz Jaenicke]
4711 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4712 length, instead of the encoding length to d2i_ASN1_OBJECT.
4715 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4717 *) [In 0.9.6g-engine release:]
4718 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4719 [Lynn Gazis <lgazis@rainbow.com>]
4721 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4723 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4724 and get fix the header length calculation.
4725 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4726 Alon Kantor <alonk@checkpoint.com> (and others),
4729 *) Use proper error handling instead of 'assertions' in buffer
4730 overflow checks added in 0.9.6e. This prevents DoS (the
4731 assertions could call abort()).
4732 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4734 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4736 *) Add various sanity checks to asn1_get_length() to reject
4737 the ASN1 length bytes if they exceed sizeof(long), will appear
4738 negative or the content length exceeds the length of the
4740 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4742 *) Fix cipher selection routines: ciphers without encryption had no flags
4743 for the cipher strength set and where therefore not handled correctly
4744 by the selection routines (PR #130).
4747 *) Fix EVP_dsa_sha macro.
4751 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4752 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4753 that was added in OpenSSL 0.9.6d.
4755 As the countermeasure turned out to be incompatible with some
4756 broken SSL implementations, the new option is part of SSL_OP_ALL.
4757 SSL_OP_ALL is usually employed when compatibility with weird SSL
4758 implementations is desired (e.g. '-bugs' option to 's_client' and
4759 's_server'), so the new option is automatically set in many
4763 *) Changes in security patch:
4765 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4766 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4767 Air Force Materiel Command, USAF, under agreement number
4770 *) Add various sanity checks to asn1_get_length() to reject
4771 the ASN1 length bytes if they exceed sizeof(long), will appear
4772 negative or the content length exceeds the length of the
4773 supplied buffer. (CVE-2002-0659)
4774 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4776 *) Assertions for various potential buffer overflows, not known to
4778 [Ben Laurie (CHATS)]
4780 *) Various temporary buffers to hold ASCII versions of integers were
4781 too small for 64 bit platforms. (CVE-2002-0655)
4782 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4784 *) Remote buffer overflow in SSL3 protocol - an attacker could
4785 supply an oversized session ID to a client. (CVE-2002-0656)
4786 [Ben Laurie (CHATS)]
4788 *) Remote buffer overflow in SSL2 protocol - an attacker could
4789 supply an oversized client master key. (CVE-2002-0656)
4790 [Ben Laurie (CHATS)]
4792 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4794 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4795 encoded as NULL) with id-dsa-with-sha1.
4796 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4798 *) Check various X509_...() return values in apps/req.c.
4799 [Nils Larsch <nla@trustcenter.de>]
4801 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4802 an end-of-file condition would erronously be flagged, when the CRLF
4803 was just at the end of a processed block. The bug was discovered when
4804 processing data through a buffering memory BIO handing the data to a
4805 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4806 <ptsekov@syntrex.com> and Nedelcho Stanev.
4809 *) Implement a countermeasure against a vulnerability recently found
4810 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4811 before application data chunks to avoid the use of known IVs
4812 with data potentially chosen by the attacker.
4815 *) Fix length checks in ssl3_get_client_hello().
4818 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4819 to prevent ssl3_read_internal() from incorrectly assuming that
4820 ssl3_read_bytes() found application data while handshake
4821 processing was enabled when in fact s->s3->in_read_app_data was
4822 merely automatically cleared during the initial handshake.
4823 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4825 *) Fix object definitions for Private and Enterprise: they were not
4826 recognized in their shortname (=lowercase) representation. Extend
4827 obj_dat.pl to issue an error when using undefined keywords instead
4828 of silently ignoring the problem (Svenning Sorensen
4829 <sss@sss.dnsalias.net>).
4832 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4833 generators, i.e. generators other than 2 and 5. (Previously, the
4834 code did not properly initialise the 'add' and 'rem' values to
4835 BN_generate_prime().)
4837 In the new general case, we do not insist that 'generator' is
4838 actually a primitive root: This requirement is rather pointless;
4839 a generator of the order-q subgroup is just as good, if not
4843 *) Map new X509 verification errors to alerts. Discovered and submitted by
4844 Tom Wu <tom@arcot.com>.
4847 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4848 returning non-zero before the data has been completely received
4849 when using non-blocking I/O.
4850 [Bodo Moeller; problem pointed out by John Hughes]
4852 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4853 [Ben Laurie, Lutz Jaenicke]
4855 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4856 Yoram Zahavi <YoramZ@gilian.com>).
4859 *) Add information about CygWin 1.3 and on, and preserve proper
4860 configuration for the versions before that.
4861 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4863 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4864 check whether we deal with a copy of a session and do not delete from
4865 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4866 <izhar@checkpoint.com>.
4869 *) Do not store session data into the internal session cache, if it
4870 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4871 flag is set). Proposed by Aslam <aslam@funk.com>.
4874 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4878 *) [In 0.9.6d-engine release:]
4879 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4880 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4882 *) Add the configuration target linux-s390x.
4883 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4885 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4886 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4887 variable as an indication that a ClientHello message has been
4888 received. As the flag value will be lost between multiple
4889 invocations of ssl3_accept when using non-blocking I/O, the
4890 function may not be aware that a handshake has actually taken
4891 place, thus preventing a new session from being added to the
4894 To avoid this problem, we now set s->new_session to 2 instead of
4895 using a local variable.
4896 [Lutz Jaenicke, Bodo Moeller]
4898 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4899 if the SSL_R_LENGTH_MISMATCH error is detected.
4900 [Geoff Thorpe, Bodo Moeller]
4902 *) New 'shared_ldflag' column in Configure platform table.
4905 *) Fix EVP_CIPHER_mode macro.
4906 ["Dan S. Camper" <dan@bti.net>]
4908 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4909 type, we must throw them away by setting rr->length to 0.
4910 [D P Chang <dpc@qualys.com>]
4912 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4914 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4915 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4916 worked incorrectly for those cases where range = 10..._2 and
4917 3*range is two bits longer than range.)
4920 *) Only add signing time to PKCS7 structures if it is not already
4924 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4925 OBJ_ld_ce should be OBJ_id_ce.
4926 Also some ip-pda OIDs in crypto/objects/objects.txt were
4927 incorrect (cf. RFC 3039).
4928 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4930 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4931 returns early because it has nothing to do.
4932 [Andy Schneider <andy.schneider@bjss.co.uk>]
4934 *) [In 0.9.6c-engine release:]
4935 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4936 [Andy Schneider <andy.schneider@bjss.co.uk>]
4938 *) [In 0.9.6c-engine release:]
4939 Add support for Cryptographic Appliance's keyserver technology.
4940 (Use engine 'keyclient')
4941 [Cryptographic Appliances and Geoff Thorpe]
4943 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4944 is called via tools/c89.sh because arguments have to be
4945 rearranged (all '-L' options must appear before the first object
4947 [Richard Shapiro <rshapiro@abinitio.com>]
4949 *) [In 0.9.6c-engine release:]
4950 Add support for Broadcom crypto accelerator cards, backported
4952 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4954 *) [In 0.9.6c-engine release:]
4955 Add support for SureWare crypto accelerator cards from
4956 Baltimore Technologies. (Use engine 'sureware')
4957 [Baltimore Technologies and Mark Cox]
4959 *) [In 0.9.6c-engine release:]
4960 Add support for crypto accelerator cards from Accelerated
4961 Encryption Processing, www.aep.ie. (Use engine 'aep')
4962 [AEP Inc. and Mark Cox]
4964 *) Add a configuration entry for gcc on UnixWare.
4965 [Gary Benson <gbenson@redhat.com>]
4967 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4968 messages are stored in a single piece (fixed-length part and
4969 variable-length part combined) and fix various bugs found on the way.
4972 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4973 instead. BIO_gethostbyname() does not know what timeouts are
4974 appropriate, so entries would stay in cache even when they have
4976 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4978 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4979 faced with a pathologically small ClientHello fragment that does
4980 not contain client_version: Instead of aborting with an error,
4981 simply choose the highest available protocol version (i.e.,
4982 TLS 1.0 unless it is disabled). In practice, ClientHello
4983 messages are never sent like this, but this change gives us
4984 strictly correct behaviour at least for TLS.
4987 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4988 never resets s->method to s->ctx->method when called from within
4989 one of the SSL handshake functions.
4990 [Bodo Moeller; problem pointed out by Niko Baric]
4992 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4993 (sent using the client's version number) if client_version is
4994 smaller than the protocol version in use. Also change
4995 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4996 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4997 the client will at least see that alert.
5000 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5004 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5005 client receives HelloRequest while in a handshake.
5006 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5008 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5009 should end in 'break', not 'goto end' which circuments various
5010 cleanups done in state SSL_ST_OK. But session related stuff
5011 must be disabled for SSL_ST_OK in the case that we just sent a
5014 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5015 before just sending a HelloRequest.
5016 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5018 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5019 reveal whether illegal block cipher padding was found or a MAC
5020 verification error occured. (Neither SSLerr() codes nor alerts
5021 are directly visible to potential attackers, but the information
5022 may leak via logfiles.)
5024 Similar changes are not required for the SSL 2.0 implementation
5025 because the number of padding bytes is sent in clear for SSL 2.0,
5026 and the extra bytes are just ignored. However ssl/s2_pkt.c
5027 failed to verify that the purported number of padding bytes is in
5031 *) Add OpenUNIX-8 support including shared libraries
5032 (Boyd Lynn Gerber <gerberb@zenez.com>).
5035 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5036 'wristwatch attack' using huge encoding parameters (cf.
5037 James H. Manger's CRYPTO 2001 paper). Note that the
5038 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5039 encoding parameters and hence was not vulnerable.
5042 *) BN_sqr() bug fix.
5043 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5045 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5046 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5047 followed by modular reduction.
5048 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5050 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5051 equivalent based on BN_pseudo_rand() instead of BN_rand().
5054 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5055 This function was broken, as the check for a new client hello message
5056 to handle SGC did not allow these large messages.
5057 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5060 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5063 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5064 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5067 *) Rework the configuration and shared library support for Tru64 Unix.
5068 The configuration part makes use of modern compiler features and
5069 still retains old compiler behavior for those that run older versions
5070 of the OS. The shared library support part includes a variant that
5071 uses the RPATH feature, and is available through the special
5072 configuration target "alpha-cc-rpath", which will never be selected
5074 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5076 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5077 with the same message size as in ssl3_get_certificate_request().
5078 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5079 messages might inadvertently be reject as too long.
5080 [Petr Lampa <lampa@fee.vutbr.cz>]
5082 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5085 *) Modified SSL library such that the verify_callback that has been set
5086 specificly for an SSL object with SSL_set_verify() is actually being
5087 used. Before the change, a verify_callback set with this function was
5088 ignored and the verify_callback() set in the SSL_CTX at the time of
5089 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5090 to allow the necessary settings.
5093 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5094 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5095 done automatically (in contradiction to the requirements of the C
5096 standard). This made problems when used from OpenSSH.
5099 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5100 dh->length and always used
5102 BN_rand_range(priv_key, dh->p).
5104 BN_rand_range() is not necessary for Diffie-Hellman, and this
5105 specific range makes Diffie-Hellman unnecessarily inefficient if
5106 dh->length (recommended exponent length) is much smaller than the
5107 length of dh->p. We could use BN_rand_range() if the order of
5108 the subgroup was stored in the DH structure, but we only have
5113 BN_rand(priv_key, l, ...)
5115 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5121 RSA_eay_public_encrypt
5122 RSA_eay_private_decrypt
5123 RSA_eay_private_encrypt (signing)
5124 RSA_eay_public_decrypt (signature verification)
5126 (default implementations for RSA_public_encrypt,
5127 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5128 always reject numbers >= n.
5131 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5132 to synchronize access to 'locking_thread'. This is necessary on
5133 systems where access to 'locking_thread' (an 'unsigned long'
5134 variable) is not atomic.
5137 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5138 *before* setting the 'crypto_lock_rand' flag. The previous code had
5139 a race condition if 0 is a valid thread ID.
5140 [Travis Vitek <vitek@roguewave.com>]
5142 *) Add support for shared libraries under Irix.
5143 [Albert Chin-A-Young <china@thewrittenword.com>]
5145 *) Add configuration option to build on Linux on both big-endian and
5147 [Ralf Baechle <ralf@uni-koblenz.de>]
5149 *) Add the possibility to create shared libraries on HP-UX.
5152 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5154 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5155 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5156 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5157 PRNG state recovery was possible based on the output of
5158 one PRNG request appropriately sized to gain knowledge on
5159 'md' followed by enough consecutive 1-byte PRNG requests
5160 to traverse all of 'state'.
5162 1. When updating 'md_local' (the current thread's copy of 'md')
5163 during PRNG output generation, hash all of the previous
5164 'md_local' value, not just the half used for PRNG output.
5166 2. Make the number of bytes from 'state' included into the hash
5167 independent from the number of PRNG bytes requested.
5169 The first measure alone would be sufficient to avoid
5170 Markku-Juhani's attack. (Actually it had never occurred
5171 to me that the half of 'md_local' used for chaining was the
5172 half from which PRNG output bytes were taken -- I had always
5173 assumed that the secret half would be used.) The second
5174 measure makes sure that additional data from 'state' is never
5175 mixed into 'md_local' in small portions; this heuristically
5176 further strengthens the PRNG.
5179 *) Fix crypto/bn/asm/mips3.s.
5182 *) When only the key is given to "enc", the IV is undefined. Print out
5183 an error message in this case.
5186 *) Handle special case when X509_NAME is empty in X509 printing routines.
5189 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5190 positive and less than q.
5193 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5194 used: it isn't thread safe and the add_lock_callback should handle
5196 [Paul Rose <Paul.Rose@bridge.com>]
5198 *) Verify that incoming data obeys the block size in
5199 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5203 [Ulf Möller, Bodo Möller]
5205 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5206 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5207 when fixing the server behaviour for backwards-compatible 'client
5208 hello' messages. (Note that the attack is impractical against
5209 SSL 3.0 and TLS 1.0 anyway because length and version checking
5210 means that the probability of guessing a valid ciphertext is
5211 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5214 Before 0.9.5, the countermeasure (hide the error by generating a
5215 random 'decryption result') did not work properly because
5216 ERR_clear_error() was missing, meaning that SSL_get_error() would
5217 detect the supposedly ignored error.
5219 Both problems are now fixed.
5222 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5223 (previously it was 1024).
5226 *) Fix for compatibility mode trust settings: ignore trust settings
5227 unless some valid trust or reject settings are present.
5230 *) Fix for blowfish EVP: its a variable length cipher.
5233 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5234 parameters in DSA public key structures and return an error in the
5235 DSA routines if parameters are absent.
5238 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5239 in the current directory if neither $RANDFILE nor $HOME was set.
5240 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5241 caused some confusion to Windows users who haven't defined $HOME.
5242 Thus RAND_file_name() is changed again: e_os.h can define a
5243 DEFAULT_HOME, which will be used if $HOME is not set.
5244 For Windows, we use "C:"; on other platforms, we still require
5245 environment variables.
5247 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5248 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5249 having multiple threads call RAND_poll() concurrently.
5252 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5253 combination of a flag and a thread ID variable.
5254 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5255 flag), *other* threads can enter ssleay_add_bytes without obeying
5256 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5257 that they do not hold after the first thread unsets add_do_not_lock).
5260 *) Change bctest again: '-x' expressions are not available in all
5264 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5266 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5267 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5269 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5270 the default extension for executables, if any. Also, make the perl
5271 scripts that use symlink() to test if it really exists and use "cp"
5272 if it doesn't. All this made OpenSSL compilable and installable in
5276 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5277 If SEQUENCE is length is indefinite just set c->slen to the total
5278 amount of data available.
5279 [Steve Henson, reported by shige@FreeBSD.org]
5280 [This change does not apply to 0.9.7.]
5282 *) Change bctest to avoid here-documents inside command substitution
5283 (workaround for FreeBSD /bin/sh bug).
5284 For compatibility with Ultrix, avoid shell functions (introduced
5285 in the bctest version that searches along $PATH).
5288 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5289 with des_encrypt() defined on some operating systems, like Solaris
5293 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5294 On the Importance of Eliminating Errors in Cryptographic
5295 Computations, J. Cryptology 14 (2001) 2, 101-119,
5296 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5299 *) MIPS assembler BIGNUM division bug fix.
5302 *) Disabled incorrect Alpha assembler code.
5305 *) Fix PKCS#7 decode routines so they correctly update the length
5306 after reading an EOC for the EXPLICIT tag.
5308 [This change does not apply to 0.9.7.]
5310 *) Fix bug in PKCS#12 key generation routines. This was triggered
5311 if a 3DES key was generated with a 0 initial byte. Include
5312 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5313 (but broken) behaviour.
5316 *) Enhance bctest to search for a working bc along $PATH and print
5318 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5320 *) Fix memory leaks in err.c: free err_data string if necessary;
5321 don't write to the wrong index in ERR_set_error_data.
5324 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5328 *) Replace rdtsc with _emit statements for VC++ version 5.
5329 [Jeremy Cooper <jeremy@baymoo.org>]
5331 *) Make it possible to reuse SSLv2 sessions.
5334 *) In copy_email() check for >= 0 as a return value for
5335 X509_NAME_get_index_by_NID() since 0 is a valid index.
5336 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5338 *) Avoid coredump with unsupported or invalid public keys by checking if
5339 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5340 PKCS7_verify() fails with non detached data.
5343 *) Don't use getenv in library functions when run as setuid/setgid.
5344 New function OPENSSL_issetugid().
5347 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5348 due to incorrect handling of multi-threading:
5350 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5352 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5354 3. Count how many times MemCheck_off() has been called so that
5355 nested use can be treated correctly. This also avoids
5356 inband-signalling in the previous code (which relied on the
5357 assumption that thread ID 0 is impossible).
5360 *) Add "-rand" option also to s_client and s_server.
5363 *) Fix CPU detection on Irix 6.x.
5364 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5365 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5367 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5370 [This change does not apply to 0.9.7.]
5372 *) Use the cached encoding of an X509_NAME structure rather than
5373 copying it. This is apparently the reason for the libsafe "errors"
5374 but the code is actually correct.
5377 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5378 Bleichenbacher's DSA attack.
5379 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5380 to be set and top=0 forces the highest bit to be set; top=-1 is new
5381 and leaves the highest bit random.
5382 [Ulf Moeller, Bodo Moeller]
5384 *) In the NCONF_...-based implementations for CONF_... queries
5385 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5386 a temporary CONF structure with the data component set to NULL
5387 (which gives segmentation faults in lh_retrieve).
5388 Instead, use NULL for the CONF pointer in CONF_get_string and
5389 CONF_get_number (which may use environment variables) and directly
5390 return NULL from CONF_get_section.
5393 *) Fix potential buffer overrun for EBCDIC.
5396 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5397 keyUsage if basicConstraints absent for a CA.
5400 *) Make SMIME_write_PKCS7() write mail header values with a format that
5401 is more generally accepted (no spaces before the semicolon), since
5402 some programs can't parse those values properly otherwise. Also make
5403 sure BIO's that break lines after each write do not create invalid
5407 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5408 macros previously used would not encode an empty SEQUENCE OF
5409 and break the signature.
5411 [This change does not apply to 0.9.7.]
5413 *) Zero the premaster secret after deriving the master secret in
5417 *) Add some EVP_add_digest_alias registrations (as found in
5418 OpenSSL_add_all_digests()) to SSL_library_init()
5419 aka OpenSSL_add_ssl_algorithms(). This provides improved
5420 compatibility with peers using X.509 certificates
5421 with unconventional AlgorithmIdentifier OIDs.
5424 *) Fix for Irix with NO_ASM.
5425 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5427 *) ./config script fixes.
5428 [Ulf Moeller, Richard Levitte]
5430 *) Fix 'openssl passwd -1'.
5433 *) Change PKCS12_key_gen_asc() so it can cope with non null
5434 terminated strings whose length is passed in the passlen
5435 parameter, for example from PEM callbacks. This was done
5436 by adding an extra length parameter to asc2uni().
5437 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5439 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5440 call failed, free the DSA structure.
5443 *) Fix to uni2asc() to cope with zero length Unicode strings.
5444 These are present in some PKCS#12 files.
5447 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5448 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5449 when writing a 32767 byte record.
5450 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5452 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5453 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5455 (RSA objects have a reference count access to which is protected
5456 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5457 so they are meant to be shared between threads.)
5458 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5459 "Reddie, Steven" <Steven.Reddie@ca.com>]
5461 *) Fix a deadlock in CRYPTO_mem_leaks().
5464 *) Use better test patterns in bntest.
5467 *) rand_win.c fix for Borland C.
5470 *) BN_rshift bugfix for n == 0.
5473 *) Add a 'bctest' script that checks for some known 'bc' bugs
5474 so that 'make test' does not abort just because 'bc' is broken.
5477 *) Store verify_result within SSL_SESSION also for client side to
5478 avoid potential security hole. (Re-used sessions on the client side
5479 always resulted in verify_result==X509_V_OK, not using the original
5480 result of the server certificate verification.)
5483 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5484 SSL3_RT_APPLICATION_DATA, return 0.
5485 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5489 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5490 releases, have been re-implemented by renaming the previous
5491 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5492 and ssl3_read_internal, respectively, and adding 'peek' parameters
5493 to them. The new ssl[23]_{read,peek} functions are calls to
5494 ssl[23]_read_internal with the 'peek' flag set appropriately.
5495 A 'peek' parameter has also been added to ssl3_read_bytes, which
5496 does the actual work for ssl3_read_internal.
5499 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5500 the method-specific "init()" handler. Also clean up ex_data after
5501 calling the method-specific "finish()" handler. Previously, this was
5502 happening the other way round.
5505 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5506 The previous value, 12, was not always sufficient for BN_mod_exp().
5509 *) Make sure that shared libraries get the internal name engine with
5510 the full version number and not just 0. This should mark the
5511 shared libraries as not backward compatible. Of course, this should
5512 be changed again when we can guarantee backward binary compatibility.
5515 *) Fix typo in get_cert_by_subject() in by_dir.c
5516 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5518 *) Rework the system to generate shared libraries:
5520 - Make note of the expected extension for the shared libraries and
5521 if there is a need for symbolic links from for example libcrypto.so.0
5522 to libcrypto.so.0.9.7. There is extended info in Configure for
5525 - Make as few rebuilds of the shared libraries as possible.
5527 - Still avoid linking the OpenSSL programs with the shared libraries.
5529 - When installing, install the shared libraries separately from the
5533 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5535 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5536 and not in SSL_clear because the latter is also used by the
5537 accept/connect functions; previously, the settings made by
5538 SSL_set_read_ahead would be lost during the handshake.
5539 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5541 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5542 Previously, it would create entries for disableed algorithms no
5546 *) Added several new manual pages for SSL_* function.
5549 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5551 *) In ssl23_get_client_hello, generate an error message when faced
5552 with an initial SSL 3.0/TLS record that is too small to contain the
5553 first two bytes of the ClientHello message, i.e. client_version.
5554 (Note that this is a pathologic case that probably has never happened
5555 in real life.) The previous approach was to use the version number
5556 from the record header as a substitute; but our protocol choice
5557 should not depend on that one because it is not authenticated
5558 by the Finished messages.
5561 *) More robust randomness gathering functions for Windows.
5562 [Jeffrey Altman <jaltman@columbia.edu>]
5564 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5565 not set then we don't setup the error code for issuer check errors
5566 to avoid possibly overwriting other errors which the callback does
5567 handle. If an application does set the flag then we assume it knows
5568 what it is doing and can handle the new informational codes
5572 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5573 a general "ANY" type, as such it should be able to decode anything
5574 including tagged types. However it didn't check the class so it would
5575 wrongly interpret tagged types in the same way as their universal
5576 counterpart and unknown types were just rejected. Changed so that the
5577 tagged and unknown types are handled in the same way as a SEQUENCE:
5578 that is the encoding is stored intact. There is also a new type
5579 "V_ASN1_OTHER" which is used when the class is not universal, in this
5580 case we have no idea what the actual type is so we just lump them all
5584 *) On VMS, stdout may very well lead to a file that is written to
5585 in a record-oriented fashion. That means that every write() will
5586 write a separate record, which will be read separately by the
5587 programs trying to read from it. This can be very confusing.
5589 The solution is to put a BIO filter in the way that will buffer
5590 text until a linefeed is reached, and then write everything a
5591 line at a time, so every record written will be an actual line,
5592 not chunks of lines and not (usually doesn't happen, but I've
5593 seen it once) several lines in one record. BIO_f_linebuffer() is
5596 Currently, it's a VMS-only method, because that's where it has
5597 been tested well enough.
5600 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5601 it can return incorrect results.
5602 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5603 but it was in 0.9.6-beta[12].)
5606 *) Disable the check for content being present when verifying detached
5607 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5608 include zero length content when signing messages.
5611 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5612 BIO_ctrl (for BIO pairs).
5615 *) Add DSO method for VMS.
5618 *) Bug fix: Montgomery multiplication could produce results with the
5622 *) Add RPM specification openssl.spec and modify it to build three
5623 packages. The default package contains applications, application
5624 documentation and run-time libraries. The devel package contains
5625 include files, static libraries and function documentation. The
5626 doc package contains the contents of the doc directory. The original
5627 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5630 *) Add a large number of documentation files for many SSL routines.
5631 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5633 *) Add a configuration entry for Sony News 4.
5634 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5636 *) Don't set the two most significant bits to one when generating a
5637 random number < q in the DSA library.
5640 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5641 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5642 the underlying transport is blocking) if a handshake took place.
5643 (The default behaviour is needed by applications such as s_client
5644 and s_server that use select() to determine when to use SSL_read;
5645 but for applications that know in advance when to expect data, it
5646 just makes things more complicated.)
5649 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5653 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5654 work better on such systems.
5655 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5657 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5658 Update PKCS12_parse() so it copies the friendlyName and the
5659 keyid to the certificates aux info.
5662 *) Fix bug in PKCS7_verify() which caused an infinite loop
5663 if there was more than one signature.
5664 [Sven Uszpelkat <su@celocom.de>]
5666 *) Major change in util/mkdef.pl to include extra information
5667 about each symbol, as well as presentig variables as well
5668 as functions. This change means that there's n more need
5669 to rebuild the .num files when some algorithms are excluded.
5672 *) Allow the verify time to be set by an application,
5673 rather than always using the current time.
5676 *) Phase 2 verify code reorganisation. The certificate
5677 verify code now looks up an issuer certificate by a
5678 number of criteria: subject name, authority key id
5679 and key usage. It also verifies self signed certificates
5680 by the same criteria. The main comparison function is
5681 X509_check_issued() which performs these checks.
5683 Lot of changes were necessary in order to support this
5684 without completely rewriting the lookup code.
5686 Authority and subject key identifier are now cached.
5688 The LHASH 'certs' is X509_STORE has now been replaced
5689 by a STACK_OF(X509_OBJECT). This is mainly because an
5690 LHASH can't store or retrieve multiple objects with
5691 the same hash value.
5693 As a result various functions (which were all internal
5694 use only) have changed to handle the new X509_STORE
5695 structure. This will break anything that messed round
5696 with X509_STORE internally.
5698 The functions X509_STORE_add_cert() now checks for an
5699 exact match, rather than just subject name.
5701 The X509_STORE API doesn't directly support the retrieval
5702 of multiple certificates matching a given criteria, however
5703 this can be worked round by performing a lookup first
5704 (which will fill the cache with candidate certificates)
5705 and then examining the cache for matches. This is probably
5706 the best we can do without throwing out X509_LOOKUP
5707 entirely (maybe later...).
5709 The X509_VERIFY_CTX structure has been enhanced considerably.
5711 All certificate lookup operations now go via a get_issuer()
5712 callback. Although this currently uses an X509_STORE it
5713 can be replaced by custom lookups. This is a simple way
5714 to bypass the X509_STORE hackery necessary to make this
5715 work and makes it possible to use more efficient techniques
5716 in future. A very simple version which uses a simple
5717 STACK for its trusted certificate store is also provided
5718 using X509_STORE_CTX_trusted_stack().
5720 The verify_cb() and verify() callbacks now have equivalents
5721 in the X509_STORE_CTX structure.
5723 X509_STORE_CTX also has a 'flags' field which can be used
5724 to customise the verify behaviour.
5727 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5728 excludes S/MIME capabilities.
5731 *) When a certificate request is read in keep a copy of the
5732 original encoding of the signed data and use it when outputing
5733 again. Signatures then use the original encoding rather than
5734 a decoded, encoded version which may cause problems if the
5735 request is improperly encoded.
5738 *) For consistency with other BIO_puts implementations, call
5739 buffer_write(b, ...) directly in buffer_puts instead of calling
5742 In BIO_puts, increment b->num_write as in BIO_write.
5743 [Peter.Sylvester@EdelWeb.fr]
5745 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5746 BN_zero, we may not return a BIGNUM with an array consisting of
5750 *) Avoid calling abort() from within the library when problems are
5751 detected, except if preprocessor symbols have been defined
5752 (such as REF_CHECK, BN_DEBUG etc.).
5755 *) New openssl application 'rsautl'. This utility can be
5756 used for low level RSA operations. DER public key
5757 BIO/fp routines also added.
5760 *) New Configure entry and patches for compiling on QNX 4.
5761 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5763 *) A demo state-machine implementation was sponsored by
5764 Nuron (http://www.nuron.com/) and is now available in
5765 demos/state_machine.
5768 *) New options added to the 'dgst' utility for signature
5769 generation and verification.
5772 *) Unrecognized PKCS#7 content types are now handled via a
5773 catch all ASN1_TYPE structure. This allows unsupported
5774 types to be stored as a "blob" and an application can
5775 encode and decode it manually.
5778 *) Fix various signed/unsigned issues to make a_strex.c
5780 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5782 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5783 length if passed a buffer. ASN1_INTEGER_to_BN failed
5784 if passed a NULL BN and its argument was negative.
5785 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5787 *) Modification to PKCS#7 encoding routines to output definite
5788 length encoding. Since currently the whole structures are in
5789 memory there's not real point in using indefinite length
5790 constructed encoding. However if OpenSSL is compiled with
5791 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5794 *) Added BIO_vprintf() and BIO_vsnprintf().
5797 *) Added more prefixes to parse for in the the strings written
5798 through a logging bio, to cover all the levels that are available
5799 through syslog. The prefixes are now:
5801 PANIC, EMERG, EMR => LOG_EMERG
5802 ALERT, ALR => LOG_ALERT
5803 CRIT, CRI => LOG_CRIT
5804 ERROR, ERR => LOG_ERR
5805 WARNING, WARN, WAR => LOG_WARNING
5806 NOTICE, NOTE, NOT => LOG_NOTICE
5807 INFO, INF => LOG_INFO
5808 DEBUG, DBG => LOG_DEBUG
5810 and as before, if none of those prefixes are present at the
5811 beginning of the string, LOG_ERR is chosen.
5813 On Win32, the LOG_* levels are mapped according to this:
5815 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5816 LOG_WARNING => EVENTLOG_WARNING_TYPE
5817 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5821 *) Made it possible to reconfigure with just the configuration
5822 argument "reconf" or "reconfigure". The command line arguments
5823 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5824 and are retrieved from there when reconfiguring.
5828 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5830 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5833 *) The obj_dat.pl script was messing up the sorting of object
5834 names. The reason was that it compared the quoted version
5835 of strings as a result "OCSP" > "OCSP Signing" because
5836 " > SPACE. Changed script to store unquoted versions of
5837 names and add quotes on output. It was also omitting some
5838 names from the lookup table if they were given a default
5839 value (that is if SN is missing it is given the same
5840 value as LN and vice versa), these are now added on the
5841 grounds that if an object has a name we should be able to
5842 look it up. Finally added warning output when duplicate
5843 short or long names are found.
5846 *) Changes needed for Tandem NSK.
5847 [Scott Uroff <scott@xypro.com>]
5849 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5850 RSA_padding_check_SSLv23(), special padding was never detected
5851 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5852 version rollback attacks was not effective.
5854 In s23_clnt.c, don't use special rollback-attack detection padding
5855 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5856 client; similarly, in s23_srvr.c, don't do the rollback check if
5857 SSL 2.0 is the only protocol enabled in the server.
5860 *) Make it possible to get hexdumps of unprintable data with 'openssl
5861 asn1parse'. By implication, the functions ASN1_parse_dump() and
5862 BIO_dump_indent() are added.
5865 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5866 these print out strings and name structures based on various
5867 flags including RFC2253 support and proper handling of
5868 multibyte characters. Added options to the 'x509' utility
5869 to allow the various flags to be set.
5872 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5873 Also change the functions X509_cmp_current_time() and
5874 X509_gmtime_adj() work with an ASN1_TIME structure,
5875 this will enable certificates using GeneralizedTime in validity
5876 dates to be checked.
5879 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5880 negative public key encodings) on by default,
5881 NO_NEG_PUBKEY_BUG can be set to disable it.
5884 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5885 content octets. An i2c_ASN1_OBJECT is unnecessary because
5886 the encoding can be trivially obtained from the structure.
5889 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5890 not read locks (CRYPTO_r_[un]lock).
5893 *) A first attempt at creating official support for shared
5894 libraries through configuration. I've kept it so the
5895 default is static libraries only, and the OpenSSL programs
5896 are always statically linked for now, but there are
5897 preparations for dynamic linking in place.
5898 This has been tested on Linux and Tru64.
5901 *) Randomness polling function for Win9x, as described in:
5902 Peter Gutmann, Software Generation of Practically Strong
5906 *) Fix so PRNG is seeded in req if using an already existing
5910 *) New options to smime application. -inform and -outform
5911 allow alternative formats for the S/MIME message including
5912 PEM and DER. The -content option allows the content to be
5913 specified separately. This should allow things like Netscape
5914 form signing output easier to verify.
5917 *) Fix the ASN1 encoding of tags using the 'long form'.
5920 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5921 STRING types. These convert content octets to and from the
5922 underlying type. The actual tag and length octets are
5923 already assumed to have been read in and checked. These
5924 are needed because all other string types have virtually
5925 identical handling apart from the tag. By having versions
5926 of the ASN1 functions that just operate on content octets
5927 IMPLICIT tagging can be handled properly. It also allows
5928 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5929 and ASN1_INTEGER are identical apart from the tag.
5932 *) Change the handling of OID objects as follows:
5934 - New object identifiers are inserted in objects.txt, following
5935 the syntax given in objects.README.
5936 - objects.pl is used to process obj_mac.num and create a new
5938 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5941 This is currently kind of a hack, and the perl code in objects.pl
5942 isn't very elegant, but it works as I intended. The simplest way
5943 to check that it worked correctly is to look in obj_dat.h and
5944 check the array nid_objs and make sure the objects haven't moved
5945 around (this is important!). Additions are OK, as well as
5946 consistent name changes.
5949 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5952 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5953 The given file adds to whatever has already been seeded into the
5954 random pool through the RANDFILE configuration file option or
5955 environment variable, or the default random state file.
5958 *) mkstack.pl now sorts each macro group into lexical order.
5959 Previously the output order depended on the order the files
5960 appeared in the directory, resulting in needless rewriting
5964 *) Patches to make OpenSSL compile under Win32 again. Mostly
5965 work arounds for the VC++ problem that it treats func() as
5966 func(void). Also stripped out the parts of mkdef.pl that
5967 added extra typesafe functions: these no longer exist.
5970 *) Reorganisation of the stack code. The macros are now all
5971 collected in safestack.h . Each macro is defined in terms of
5972 a "stack macro" of the form SKM_<name>(type, a, b). The
5973 DEBUG_SAFESTACK is now handled in terms of function casts,
5974 this has the advantage of retaining type safety without the
5975 use of additional functions. If DEBUG_SAFESTACK is not defined
5976 then the non typesafe macros are used instead. Also modified the
5977 mkstack.pl script to handle the new form. Needs testing to see
5978 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5979 the default if no major problems. Similar behaviour for ASN1_SET_OF
5980 and PKCS12_STACK_OF.
5983 *) When some versions of IIS use the 'NET' form of private key the
5984 key derivation algorithm is different. Normally MD5(password) is
5985 used as a 128 bit RC4 key. In the modified case
5986 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5987 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5988 as the old Netscape_RSA functions except they have an additional
5989 'sgckey' parameter which uses the modified algorithm. Also added
5990 an -sgckey command line option to the rsa utility. Thanks to
5991 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5992 algorithm to openssl-dev.
5995 *) The evp_local.h macros were using 'c.##kname' which resulted in
5996 invalid expansion on some systems (SCO 5.0.5 for example).
5997 Corrected to 'c.kname'.
5998 [Phillip Porch <root@theporch.com>]
6000 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6001 a STACK of email addresses from a certificate or request, these look
6002 in the subject name and the subject alternative name extensions and
6003 omit any duplicate addresses.
6006 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6007 This makes DSA verification about 2 % faster.
6010 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6011 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6012 plus overhead for 1024 bit moduli).
6013 This makes exponentiations about 0.5 % faster for 1024 bit
6014 exponents (as measured by "openssl speed rsa2048").
6017 *) Rename memory handling macros to avoid conflicts with other
6019 Malloc => OPENSSL_malloc
6020 Malloc_locked => OPENSSL_malloc_locked
6021 Realloc => OPENSSL_realloc
6022 Free => OPENSSL_free
6025 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6026 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6029 *) CygWin32 support.
6030 [John Jarvie <jjarvie@newsguy.com>]
6032 *) The type-safe stack code has been rejigged. It is now only compiled
6033 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6034 by default all type-specific stack functions are "#define"d back to
6035 standard stack functions. This results in more streamlined output
6036 but retains the type-safety checking possibilities of the original
6040 *) The STACK code has been cleaned up, and certain type declarations
6041 that didn't make a lot of sense have been brought in line. This has
6042 also involved a cleanup of sorts in safestack.h to more correctly
6043 map type-safe stack functions onto their plain stack counterparts.
6044 This work has also resulted in a variety of "const"ifications of
6045 lots of the code, especially "_cmp" operations which should normally
6046 be prototyped with "const" parameters anyway.
6049 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6050 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6051 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6052 where all of 'md' is used each time the PRNG is used, but 'state'
6053 is used only indexed by a cyclic counter. As entropy may not be
6054 well distributed from the beginning, 'md' is important as a
6055 chaining variable. However, the output function chains only half
6056 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6057 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6058 in all of 'state' being rewritten, with the new values depending
6059 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6062 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6063 the handshake is continued after ssl_verify_cert_chain();
6064 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6065 can lead to 'unexplainable' connection aborts later.
6066 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6068 *) Major EVP API cipher revision.
6069 Add hooks for extra EVP features. This allows various cipher
6070 parameters to be set in the EVP interface. Support added for variable
6071 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6072 setting of RC2 and RC5 parameters.
6074 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6077 Remove lots of duplicated code from the EVP library. For example *every*
6078 cipher init() function handles the 'iv' in the same way according to the
6079 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6080 for CFB and OFB modes they zero ctx->num.
6082 New functionality allows removal of S/MIME code RC2 hack.
6084 Most of the routines have the same form and so can be declared in terms
6087 By shifting this to the top level EVP_CipherInit() it can be removed from
6088 all individual ciphers. If the cipher wants to handle IVs or keys
6089 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6092 Change lots of functions like EVP_EncryptUpdate() to now return a
6093 value: although software versions of the algorithms cannot fail
6094 any installed hardware versions can.
6097 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6098 this option is set, tolerate broken clients that send the negotiated
6099 protocol version number instead of the requested protocol version
6103 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6104 i.e. non-zero for export ciphersuites, zero otherwise.
6105 Previous versions had this flag inverted, inconsistent with
6106 rsa_tmp_cb (..._TMP_RSA_CB).
6107 [Bodo Moeller; problem reported by Amit Chopra]
6109 *) Add missing DSA library text string. Work around for some IIS
6110 key files with invalid SEQUENCE encoding.
6113 *) Add a document (doc/standards.txt) that list all kinds of standards
6114 and so on that are implemented in OpenSSL.
6117 *) Enhance c_rehash script. Old version would mishandle certificates
6118 with the same subject name hash and wouldn't handle CRLs at all.
6119 Added -fingerprint option to crl utility, to support new c_rehash
6123 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6126 *) Fix for SSL server purpose checking. Server checking was
6127 rejecting certificates which had extended key usage present
6128 but no ssl client purpose.
6129 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6131 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6132 is a little unclear about how a blank password is handled.
6133 Since the password in encoded as a BMPString with terminating
6134 double NULL a zero length password would end up as just the
6135 double NULL. However no password at all is different and is
6136 handled differently in the PKCS#12 key generation code. NS
6137 treats a blank password as zero length. MSIE treats it as no
6138 password on export: but it will try both on import. We now do
6139 the same: PKCS12_parse() tries zero length and no password if
6140 the password is set to "" or NULL (NULL is now a valid password:
6141 it wasn't before) as does the pkcs12 application.
6144 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6145 perror when PEM_read_bio_X509_REQ fails, the error message must
6146 be obtained from the error queue.
6149 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6150 it in ERR_remove_state if appropriate, and change ERR_get_state
6151 accordingly to avoid race conditions (this is necessary because
6152 thread_hash is no longer constant once set).
6155 *) Bugfix for linux-elf makefile.one.
6158 *) RSA_get_default_method() will now cause a default
6159 RSA_METHOD to be chosen if one doesn't exist already.
6160 Previously this was only set during a call to RSA_new()
6161 or RSA_new_method(NULL) meaning it was possible for
6162 RSA_get_default_method() to return NULL.
6165 *) Added native name translation to the existing DSO code
6166 that will convert (if the flag to do so is set) filenames
6167 that are sufficiently small and have no path information
6168 into a canonical native form. Eg. "blah" converted to
6169 "libblah.so" or "blah.dll" etc.
6172 *) New function ERR_error_string_n(e, buf, len) which is like
6173 ERR_error_string(e, buf), but writes at most 'len' bytes
6174 including the 0 terminator. For ERR_error_string_n, 'buf'
6176 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6178 *) CONF library reworked to become more general. A new CONF
6179 configuration file reader "class" is implemented as well as a
6180 new functions (NCONF_*, for "New CONF") to handle it. The now
6181 old CONF_* functions are still there, but are reimplemented to
6182 work in terms of the new functions. Also, a set of functions
6183 to handle the internal storage of the configuration data is
6184 provided to make it easier to write new configuration file
6185 reader "classes" (I can definitely see something reading a
6186 configuration file in XML format, for example), called _CONF_*,
6187 or "the configuration storage API"...
6189 The new configuration file reading functions are:
6191 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6192 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6194 NCONF_default, NCONF_WIN32
6196 NCONF_dump_fp, NCONF_dump_bio
6198 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6199 NCONF_new creates a new CONF object. This works in the same way
6200 as other interfaces in OpenSSL, like the BIO interface.
6201 NCONF_dump_* dump the internal storage of the configuration file,
6202 which is useful for debugging. All other functions take the same
6203 arguments as the old CONF_* functions wth the exception of the
6204 first that must be a `CONF *' instead of a `LHASH *'.
6206 To make it easer to use the new classes with the old CONF_* functions,
6207 the function CONF_set_default_method is provided.
6210 *) Add '-tls1' option to 'openssl ciphers', which was already
6211 mentioned in the documentation but had not been implemented.
6212 (This option is not yet really useful because even the additional
6213 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6216 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6217 OpenSSL-based applications) load shared libraries and bind to
6218 them in a portable way.
6219 [Geoff Thorpe, with contributions from Richard Levitte]
6221 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6223 *) Make sure _lrotl and _lrotr are only used with MSVC.
6225 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6226 (the default implementation of RAND_status).
6228 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6229 to '-clrext' (= clear extensions), as intended and documented.
6230 [Bodo Moeller; inconsistency pointed out by Michael Attili
6233 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6234 was larger than the MD block size.
6235 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6237 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6238 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6239 using the passed key: if the passed key was a private key the result
6240 of X509_print(), for example, would be to print out all the private key
6244 *) des_quad_cksum() byte order bug fix.
6245 [Ulf Möller, using the problem description in krb4-0.9.7, where
6246 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6248 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6250 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6252 *) For easily testing in shell scripts whether some command
6253 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6254 returns with exit code 0 iff no command of the given name is available.
6255 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6256 the output goes to stdout and nothing is printed to stderr.
6257 Additional arguments are always ignored.
6259 Since for each cipher there is a command of the same name,
6260 the 'no-cipher' compilation switches can be tested this way.
6262 ('openssl no-XXX' is not able to detect pseudo-commands such
6263 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6266 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6269 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6270 is set; it will be thrown away anyway because each handshake creates
6272 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6273 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6274 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6275 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6278 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6279 'Q' and 'R' lose their special meanings (quit/renegotiate).
6280 This is part of what -quiet does; unlike -quiet, -ign_eof
6281 does not suppress any output.
6284 *) Add compatibility options to the purpose and trust code. The
6285 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6286 accepts a certificate or CA, this was the previous behaviour,
6287 with all the associated security issues.
6289 X509_TRUST_COMPAT is the old trust behaviour: only and
6290 automatically trust self signed roots in certificate store. A
6291 new trust setting X509_TRUST_DEFAULT is used to specify that
6292 a purpose has no associated trust setting and it should instead
6293 use the value in the default purpose.
6296 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6297 and fix a memory leak.
6300 *) In util/mkerr.pl (which implements 'make errors'), preserve
6301 reason strings from the previous version of the .c file, as
6302 the default to have only downcase letters (and digits) in
6303 automatically generated reasons codes is not always appropriate.
6306 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6307 using strerror. Previously, ERR_reason_error_string() returned
6308 library names as reason strings for SYSerr; but SYSerr is a special
6309 case where small numbers are errno values, not library numbers.
6312 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6313 converts DSA parameters into DH parameters. (When creating parameters,
6314 DSA_generate_parameters is used.)
6317 *) Include 'length' (recommended exponent length) in C code generated
6318 by 'openssl dhparam -C'.
6321 *) The second argument to set_label in perlasm was already being used
6322 so couldn't be used as a "file scope" flag. Moved to third argument
6326 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6327 instead of RAND_bytes for encryption IVs and salts.
6330 *) Include RAND_status() into RAND_METHOD instead of implementing
6331 it only for md_rand.c Otherwise replacing the PRNG by calling
6332 RAND_set_rand_method would be impossible.
6335 *) Don't let DSA_generate_key() enter an infinite loop if the random
6336 number generation fails.
6339 *) New 'rand' application for creating pseudo-random output.
6342 *) Added configuration support for Linux/IA64
6343 [Rolf Haberrecker <rolf@suse.de>]
6345 *) Assembler module support for Mingw32.
6348 *) Shared library support for HPUX (in shlib/).
6349 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6351 *) Shared library support for Solaris gcc.
6352 [Lutz Behnke <behnke@trustcenter.de>]
6354 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6356 *) PKCS7_encrypt() was adding text MIME headers twice because they
6357 were added manually and by SMIME_crlf_copy().
6360 *) In bntest.c don't call BN_rand with zero bits argument.
6361 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6363 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6364 case was implemented. This caused BN_div_recp() to fail occasionally.
6367 *) Add an optional second argument to the set_label() in the perl
6368 assembly language builder. If this argument exists and is set
6369 to 1 it signals that the assembler should use a symbol whose
6370 scope is the entire file, not just the current function. This
6371 is needed with MASM which uses the format label:: for this scope.
6372 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6374 *) Change the ASN1 types so they are typedefs by default. Before
6375 almost all types were #define'd to ASN1_STRING which was causing
6376 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6380 *) Change names of new functions to the new get1/get0 naming
6381 convention: After 'get1', the caller owns a reference count
6382 and has to call ..._free; 'get0' returns a pointer to some
6383 data structure without incrementing reference counters.
6384 (Some of the existing 'get' functions increment a reference
6385 counter, some don't.)
6386 Similarly, 'set1' and 'add1' functions increase reference
6387 counters or duplicate objects.
6390 *) Allow for the possibility of temp RSA key generation failure:
6391 the code used to assume it always worked and crashed on failure.
6394 *) Fix potential buffer overrun problem in BIO_printf().
6395 [Ulf Möller, using public domain code by Patrick Powell; problem
6396 pointed out by David Sacerdote <das33@cornell.edu>]
6398 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6399 RAND_egd() and RAND_status(). In the command line application,
6400 the EGD socket can be specified like a seed file using RANDFILE
6404 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6405 Some CAs (e.g. Verisign) distribute certificates in this form.
6408 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6409 list to exclude them. This means that no special compilation option
6410 is needed to use anonymous DH: it just needs to be included in the
6414 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6415 EVP_MD_type. The old functionality is available in a new macro called
6416 EVP_MD_md(). Change code that uses it and update docs.
6419 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6420 where the 'void *' argument is replaced by a function pointer argument.
6421 Previously 'void *' was abused to point to functions, which works on
6422 many platforms, but is not correct. As these functions are usually
6423 called by macros defined in OpenSSL header files, most source code
6424 should work without changes.
6427 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6428 sections with information on -D... compiler switches used for
6429 compiling the library so that applications can see them. To enable
6430 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6431 must be defined. E.g.,
6432 #define OPENSSL_ALGORITHM_DEFINES
6433 #include <openssl/opensslconf.h>
6434 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6435 [Richard Levitte, Ulf and Bodo Möller]
6437 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6441 *) Change the 'other' type in certificate aux info to a STACK_OF
6442 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6443 the required ASN1 format: arbitrary types determined by an OID.
6446 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6447 argument to 'req'. This is not because the function is newer or
6448 better than others it just uses the work 'NEW' in the certificate
6449 request header lines. Some software needs this.
6452 *) Reorganise password command line arguments: now passwords can be
6453 obtained from various sources. Delete the PEM_cb function and make
6454 it the default behaviour: i.e. if the callback is NULL and the
6455 usrdata argument is not NULL interpret it as a null terminated pass
6456 phrase. If usrdata and the callback are NULL then the pass phrase
6457 is prompted for as usual.
6460 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6461 the support is automatically enabled. The resulting binaries will
6462 autodetect the card and use it if present.
6463 [Ben Laurie and Compaq Inc.]
6465 *) Work around for Netscape hang bug. This sends certificate request
6466 and server done in one record. Since this is perfectly legal in the
6467 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6468 the bugs/SSLv3 entry for more info.
6471 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6474 *) Add -rand argument to smime and pkcs12 applications and read/write
6478 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6481 *) Add command line password options to the remaining applications.
6484 *) Bug fix for BN_div_recp() for numerators with an even number of
6488 *) More tests in bntest.c, and changed test_bn output.
6491 *) ./config recognizes MacOS X now.
6494 *) Bug fix for BN_div() when the first words of num and divsor are
6495 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6498 *) Add support for various broken PKCS#8 formats, and command line
6499 options to produce them.
6502 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6503 get temporary BIGNUMs from a BN_CTX.
6506 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6510 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6511 include a #define from the old name to the new. The original intent
6512 was that statically linked binaries could for example just call
6513 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6514 link with digests. This never worked becayse SSLeay_add_all_digests()
6515 and SSLeay_add_all_ciphers() were in the same source file so calling
6516 one would link with the other. They are now in separate source files.
6519 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6522 *) Use a less unusual form of the Miller-Rabin primality test (it used
6523 a binary algorithm for exponentiation integrated into the Miller-Rabin
6524 loop, our standard modexp algorithms are faster).
6527 *) Support for the EBCDIC character set completed.
6528 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6530 *) Source code cleanups: use const where appropriate, eliminate casts,
6531 use void * instead of char * in lhash.
6534 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6535 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6536 this the server could overwrite ephemeral keys that the client
6540 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6541 using 50 iterations of the Rabin-Miller test.
6543 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6544 iterations of the Rabin-Miller test as required by the appendix
6545 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6546 As BN_is_prime_fasttest includes trial division, DSA parameter
6547 generation becomes much faster.
6549 This implies a change for the callback functions in DSA_is_prime
6550 and DSA_generate_parameters: The callback function is called once
6551 for each positive witness in the Rabin-Miller test, not just
6552 occasionally in the inner loop; and the parameters to the
6553 callback function now provide an iteration count for the outer
6554 loop rather than for the current invocation of the inner loop.
6555 DSA_generate_parameters additionally can call the callback
6556 function with an 'iteration count' of -1, meaning that a
6557 candidate has passed the trial division test (when q is generated
6558 from an application-provided seed, trial division is skipped).
6561 *) New function BN_is_prime_fasttest that optionally does trial
6562 division before starting the Rabin-Miller test and has
6563 an additional BN_CTX * argument (whereas BN_is_prime always
6564 has to allocate at least one BN_CTX).
6565 'callback(1, -1, cb_arg)' is called when a number has passed the
6566 trial division stage.
6569 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6573 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6576 *) New function BN_pseudo_rand().
6579 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6580 bignum version of BN_from_montgomery() with the working code from
6581 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6585 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6586 made it impossible to use the same SSL_SESSION data structure in
6587 SSL2 clients in multiple threads.
6590 *) The return value of RAND_load_file() no longer counts bytes obtained
6591 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6592 to seed the PRNG (previously an explicit byte count was required).
6593 [Ulf Möller, Bodo Möller]
6595 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6596 used (char *) instead of (void *) and had casts all over the place.
6599 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6602 *) Retain source code compatibility for BN_prime_checks macro:
6603 BN_is_prime(..., BN_prime_checks, ...) now uses
6604 BN_prime_checks_for_size to determine the appropriate number of
6605 Rabin-Miller iterations.
6608 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6609 DH_CHECK_P_NOT_SAFE_PRIME.
6610 (Check if this is true? OpenPGP calls them "strong".)
6613 *) Merge the functionality of "dh" and "gendh" programs into a new program
6614 "dhparam". The old programs are retained for now but will handle DH keys
6615 (instead of parameters) in future.
6618 *) Make the ciphers, s_server and s_client programs check the return values
6619 when a new cipher list is set.
6622 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6623 ciphers. Before when the 56bit ciphers were enabled the sorting was
6626 The syntax for the cipher sorting has been extended to support sorting by
6627 cipher-strength (using the strength_bits hard coded in the tables).
6628 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6630 Fix a bug in the cipher-command parser: when supplying a cipher command
6631 string with an "undefined" symbol (neither command nor alphanumeric
6632 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6633 an error is flagged.
6635 Due to the strength-sorting extension, the code of the
6636 ssl_create_cipher_list() function was completely rearranged. I hope that
6637 the readability was also increased :-)
6638 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6640 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6641 for the first serial number and places 2 in the serial number file. This
6642 avoids problems when the root CA is created with serial number zero and
6643 the first user certificate has the same issuer name and serial number
6647 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6648 the new code. Add documentation for this stuff.
6651 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6652 X509_*() to X509at_*() on the grounds that they don't handle X509
6653 structures and behave in an analagous way to the X509v3 functions:
6654 they shouldn't be called directly but wrapper functions should be used
6657 So we also now have some wrapper functions that call the X509at functions
6658 when passed certificate requests. (TO DO: similar things can be done with
6659 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6660 things. Some of these need some d2i or i2d and print functionality
6661 because they handle more complex structures.)
6664 *) Add missing #ifndefs that caused missing symbols when building libssl
6665 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6666 NO_RSA in ssl/s2*.c.
6667 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6669 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6670 has a return value which indicates the quality of the random data
6671 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6672 error queue. New function RAND_pseudo_bytes() generates output that is
6673 guaranteed to be unique but not unpredictable. RAND_add is like
6674 RAND_seed, but takes an extra argument for an entropy estimate
6675 (RAND_seed always assumes full entropy).
6678 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6679 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6680 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6681 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6682 false-positive rate of at most 2^-80 for random input.
6685 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6688 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6689 in the 0.9.5 release), this returns the chain
6690 from an X509_CTX structure with a dup of the stack and all
6691 the X509 reference counts upped: so the stack will exist
6692 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6695 Also make SSL_SESSION_print() print out the verify return
6699 *) Add manpage for the pkcs12 command. Also change the default
6700 behaviour so MAC iteration counts are used unless the new
6701 -nomaciter option is used. This improves file security and
6702 only older versions of MSIE (4.0 for example) need it.
6705 *) Honor the no-xxx Configure options when creating .DEF files.
6708 *) Add PKCS#10 attributes to field table: challengePassword,
6709 unstructuredName and unstructuredAddress. These are taken from
6710 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6711 international characters are used.
6713 More changes to X509_ATTRIBUTE code: allow the setting of types
6714 based on strings. Remove the 'loc' parameter when adding
6715 attributes because these will be a SET OF encoding which is sorted
6719 *) Initial changes to the 'req' utility to allow request generation
6720 automation. This will allow an application to just generate a template
6721 file containing all the field values and have req construct the
6724 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6725 used all over the place including certificate requests and PKCS#7
6726 structures. They are currently handled manually where necessary with
6727 some primitive wrappers for PKCS#7. The new functions behave in a
6728 manner analogous to the X509 extension functions: they allow
6729 attributes to be looked up by NID and added.
6731 Later something similar to the X509V3 code would be desirable to
6732 automatically handle the encoding, decoding and printing of the
6733 more complex types. The string types like challengePassword can
6734 be handled by the string table functions.
6736 Also modified the multi byte string table handling. Now there is
6737 a 'global mask' which masks out certain types. The table itself
6738 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6739 is useful when for example there is only one permissible type
6740 (as in countryName) and using the mask might result in no valid
6744 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6745 SSL_get_peer_finished to allow applications to obtain the latest
6746 Finished messages sent to the peer or expected from the peer,
6747 respectively. (SSL_get_peer_finished is usually the Finished message
6748 actually received from the peer, otherwise the protocol will be aborted.)
6750 As the Finished message are message digests of the complete handshake
6751 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6752 be used for external authentication procedures when the authentication
6753 provided by SSL/TLS is not desired or is not enough.
6756 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6757 the host supports BWX extension and if Compaq C is present on the
6758 $PATH. Just exploiting of the BWX extension results in 20-30%
6759 performance kick for some algorithms, e.g. DES and RC4 to mention
6760 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6764 *) Add support for MS "fast SGC". This is arguably a violation of the
6765 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6766 weak crypto and after checking the certificate is SGC a second one
6767 with strong crypto. MS SGC stops the first handshake after receiving
6768 the server certificate message and sends a second client hello. Since
6769 a server will typically do all the time consuming operations before
6770 expecting any further messages from the client (server key exchange
6771 is the most expensive) there is little difference between the two.
6773 To get OpenSSL to support MS SGC we have to permit a second client
6774 hello message after we have sent server done. In addition we have to
6775 reset the MAC if we do get this second client hello.
6778 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6779 if a DER encoded private key is RSA or DSA traditional format. Changed
6780 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6781 format DER encoded private key. Newer code should use PKCS#8 format which
6782 has the key type encoded in the ASN1 structure. Added DER private key
6783 support to pkcs8 application.
6786 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6787 ciphersuites has been selected (as required by the SSL 3/TLS 1
6788 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6789 is set, we interpret this as a request to violate the specification
6790 (the worst that can happen is a handshake failure, and 'correct'
6791 behaviour would result in a handshake failure anyway).
6794 *) In SSL_CTX_add_session, take into account that there might be multiple
6795 SSL_SESSION structures with the same session ID (e.g. when two threads
6796 concurrently obtain them from an external cache).
6797 The internal cache can handle only one SSL_SESSION with a given ID,
6798 so if there's a conflict, we now throw out the old one to achieve
6802 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6803 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6804 some routines that use cipher OIDs: some ciphers do not have OIDs
6805 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6809 *) Simplify the trust setting structure and code. Now we just have
6810 two sequences of OIDs for trusted and rejected settings. These will
6811 typically have values the same as the extended key usage extension
6812 and any application specific purposes.
6814 The trust checking code now has a default behaviour: it will just
6815 check for an object with the same NID as the passed id. Functions can
6816 be provided to override either the default behaviour or the behaviour
6817 for a given id. SSL client, server and email already have functions
6818 in place for compatibility: they check the NID and also return "trusted"
6819 if the certificate is self signed.
6822 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6823 traditional format into an EVP_PKEY structure.
6826 *) Add a password callback function PEM_cb() which either prompts for
6827 a password if usr_data is NULL or otherwise assumes it is a null
6828 terminated password. Allow passwords to be passed on command line
6829 environment or config files in a few more utilities.
6832 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6833 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6834 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6835 Update documentation.
6838 *) Support for ASN1 "NULL" type. This could be handled before by using
6839 ASN1_TYPE but there wasn't any function that would try to read a NULL
6840 and produce an error if it couldn't. For compatibility we also have
6841 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6842 don't allocate anything because they don't need to.
6845 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6847 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6849 *) Rebuild of the memory allocation routines used by OpenSSL code and
6850 possibly others as well. The purpose is to make an interface that
6851 provide hooks so anyone can build a separate set of allocation and
6852 deallocation routines to be used by OpenSSL, for example memory
6853 pool implementations, or something else, which was previously hard
6854 since Malloc(), Realloc() and Free() were defined as macros having
6855 the values malloc, realloc and free, respectively (except for Win32
6856 compilations). The same is provided for memory debugging code.
6857 OpenSSL already comes with functionality to find memory leaks, but
6858 this gives people a chance to debug other memory problems.
6860 With these changes, a new set of functions and macros have appeared:
6862 CRYPTO_set_mem_debug_functions() [F]
6863 CRYPTO_get_mem_debug_functions() [F]
6864 CRYPTO_dbg_set_options() [F]
6865 CRYPTO_dbg_get_options() [F]
6866 CRYPTO_malloc_debug_init() [M]
6868 The memory debug functions are NULL by default, unless the library
6869 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6870 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6871 gives the standard debugging functions that come with OpenSSL) or
6872 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6873 provided by the library user) must be used. When the standard
6874 debugging functions are used, CRYPTO_dbg_set_options can be used to
6875 request additional information:
6876 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6877 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6879 Also, things like CRYPTO_set_mem_functions will always give the
6880 expected result (the new set of functions is used for allocation
6881 and deallocation) at all times, regardless of platform and compiler
6884 To finish it up, some functions that were never use in any other
6885 way than through macros have a new API and new semantic:
6888 CRYPTO_dbg_realloc()
6891 All macros of value have retained their old syntax.
6892 [Richard Levitte and Bodo Moeller]
6894 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6895 ordering of SMIMECapabilities wasn't in "strength order" and there
6896 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6900 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6901 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6902 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6904 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6905 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6906 functionality to handle multipart/signed properly) and a utility
6907 called 'smime' to call all this stuff. This is based on code I
6908 originally wrote for Celo who have kindly allowed it to be
6909 included in OpenSSL.
6912 *) Add variants des_set_key_checked and des_set_key_unchecked of
6913 des_set_key (aka des_key_sched). Global variable des_check_key
6914 decides which of these is called by des_set_key; this way
6915 des_check_key behaves as it always did, but applications and
6916 the library itself, which was buggy for des_check_key == 1,
6917 have a cleaner way to pick the version they need.
6920 *) New function PKCS12_newpass() which changes the password of a
6924 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6925 dynamic mix. In both cases the ids can be used as an index into the
6926 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6927 functions so they accept a list of the field values and the
6928 application doesn't need to directly manipulate the X509_TRUST
6932 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6936 *) Modify the way the V3 extension code looks up extensions. This now
6937 works in a similar way to the object code: we have some "standard"
6938 extensions in a static table which is searched with OBJ_bsearch()
6939 and the application can add dynamic ones if needed. The file
6940 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6941 updated whenever a new extension is added to the core code and kept
6942 in ext_nid order. There is a simple program 'tabtest.c' which checks
6943 this. New extensions are not added too often so this file can readily
6944 be maintained manually.
6946 There are two big advantages in doing things this way. The extensions
6947 can be looked up immediately and no longer need to be "added" using
6948 X509V3_add_standard_extensions(): this function now does nothing.
6949 [Side note: I get *lots* of email saying the extension code doesn't
6950 work because people forget to call this function]
6951 Also no dynamic allocation is done unless new extensions are added:
6952 so if we don't add custom extensions there is no need to call
6953 X509V3_EXT_cleanup().
6956 *) Modify enc utility's salting as follows: make salting the default. Add a
6957 magic header, so unsalted files fail gracefully instead of just decrypting
6958 to garbage. This is because not salting is a big security hole, so people
6959 should be discouraged from doing it.
6962 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6963 digest to be passed on the command line but it only used this
6964 parameter when signing a certificate. Modified so all relevant
6965 operations are affected by the digest parameter including the
6966 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6967 DSA key was used because it didn't fix the digest.
6970 *) Initial certificate chain verify code. Currently tests the untrusted
6971 certificates for consistency with the verify purpose (which is set
6972 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6974 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6975 this is because it will reject chains with invalid extensions whereas
6976 every previous version of OpenSSL and SSLeay made no checks at all.
6978 Trust code: checks the root CA for the relevant trust settings. Trust
6979 settings have an initial value consistent with the verify purpose: e.g.
6980 if the verify purpose is for SSL client use it expects the CA to be
6981 trusted for SSL client use. However the default value can be changed to
6982 permit custom trust settings: one example of this would be to only trust
6983 certificates from a specific "secure" set of CAs.
6985 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6986 which should be used for version portability: especially since the
6987 verify structure is likely to change more often now.
6989 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6990 to set them. If not set then assume SSL clients will verify SSL servers
6993 Two new options to the verify program: -untrusted allows a set of
6994 untrusted certificates to be passed in and -purpose which sets the
6995 intended purpose of the certificate. If a purpose is set then the
6996 new chain verify code is used to check extension consistency.
6999 *) Support for the authority information access extension.
7002 *) Modify RSA and DSA PEM read routines to transparently handle
7003 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7004 public keys in a format compatible with certificate
7005 SubjectPublicKeyInfo structures. Unfortunately there were already
7006 functions called *_PublicKey_* which used various odd formats so
7007 these are retained for compatibility: however the DSA variants were
7008 never in a public release so they have been deleted. Changed dsa/rsa
7009 utilities to handle the new format: note no releases ever handled public
7010 keys so we should be OK.
7012 The primary motivation for this change is to avoid the same fiasco
7013 that dogs private keys: there are several incompatible private key
7014 formats some of which are standard and some OpenSSL specific and
7015 require various evil hacks to allow partial transparent handling and
7016 even then it doesn't work with DER formats. Given the option anything
7017 other than PKCS#8 should be dumped: but the other formats have to
7018 stay in the name of compatibility.
7020 With public keys and the benefit of hindsight one standard format
7021 is used which works with EVP_PKEY, RSA or DSA structures: though
7022 it clearly returns an error if you try to read the wrong kind of key.
7024 Added a -pubkey option to the 'x509' utility to output the public key.
7025 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7026 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7027 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7028 that do the same as the EVP_PKEY_assign_*() except they up the
7029 reference count of the added key (they don't "swallow" the
7033 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7034 CRLs would fail if the file contained no certificates or no CRLs:
7035 added a new function to read in both types and return the number
7036 read: this means that if none are read it will be an error. The
7037 DER versions of the certificate and CRL reader would always fail
7038 because it isn't possible to mix certificates and CRLs in DER format
7039 without choking one or the other routine. Changed this to just read
7040 a certificate: this is the best we can do. Also modified the code
7041 in apps/verify.c to take notice of return codes: it was previously
7042 attempting to read in certificates from NULL pointers and ignoring
7043 any errors: this is one reason why the cert and CRL reader seemed
7044 to work. It doesn't check return codes from the default certificate
7045 routines: these may well fail if the certificates aren't installed.
7048 *) Code to support otherName option in GeneralName.
7051 *) First update to verify code. Change the verify utility
7052 so it warns if it is passed a self signed certificate:
7053 for consistency with the normal behaviour. X509_verify
7054 has been modified to it will now verify a self signed
7055 certificate if *exactly* the same certificate appears
7056 in the store: it was previously impossible to trust a
7057 single self signed certificate. This means that:
7058 openssl verify ss.pem
7059 now gives a warning about a self signed certificate but
7060 openssl verify -CAfile ss.pem ss.pem
7064 *) For servers, store verify_result in SSL_SESSION data structure
7065 (and add it to external session representation).
7066 This is needed when client certificate verifications fails,
7067 but an application-provided verification callback (set by
7068 SSL_CTX_set_cert_verify_callback) allows accepting the session
7069 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7070 but returns 1): When the session is reused, we have to set
7071 ssl->verify_result to the appropriate error code to avoid
7073 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7075 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7076 case in PKCS7_dataInit() where the signed PKCS7 structure
7077 didn't contain any existing data because it was being created.
7078 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7080 *) Add a salt to the key derivation routines in enc.c. This
7081 forms the first 8 bytes of the encrypted file. Also add a
7082 -S option to allow a salt to be input on the command line.
7085 *) New function X509_cmp(). Oddly enough there wasn't a function
7086 to compare two certificates. We do this by working out the SHA1
7087 hash and comparing that. X509_cmp() will be needed by the trust
7091 *) SSL_get1_session() is like SSL_get_session(), but increments
7092 the reference count in the SSL_SESSION returned.
7093 [Geoff Thorpe <geoff@eu.c2.net>]
7095 *) Fix for 'req': it was adding a null to request attributes.
7096 Also change the X509_LOOKUP and X509_INFO code to handle
7097 certificate auxiliary information.
7100 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7104 *) Add the possibility to add extra information to the memory leak
7105 detecting output, to form tracebacks, showing from where each
7106 allocation was originated: CRYPTO_push_info("constant string") adds
7107 the string plus current file name and line number to a per-thread
7108 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7109 is like calling CYRPTO_pop_info() until the stack is empty.
7110 Also updated memory leak detection code to be multi-thread-safe.
7113 *) Add options -text and -noout to pkcs7 utility and delete the
7114 encryption options which never did anything. Update docs.
7117 *) Add options to some of the utilities to allow the pass phrase
7118 to be included on either the command line (not recommended on
7119 OSes like Unix) or read from the environment. Update the
7120 manpages and fix a few bugs.
7123 *) Add a few manpages for some of the openssl commands.
7126 *) Fix the -revoke option in ca. It was freeing up memory twice,
7127 leaking and not finding already revoked certificates.
7130 *) Extensive changes to support certificate auxiliary information.
7131 This involves the use of X509_CERT_AUX structure and X509_AUX
7132 functions. An X509_AUX function such as PEM_read_X509_AUX()
7133 can still read in a certificate file in the usual way but it
7134 will also read in any additional "auxiliary information". By
7135 doing things this way a fair degree of compatibility can be
7136 retained: existing certificates can have this information added
7137 using the new 'x509' options.
7139 Current auxiliary information includes an "alias" and some trust
7140 settings. The trust settings will ultimately be used in enhanced
7141 certificate chain verification routines: currently a certificate
7142 can only be trusted if it is self signed and then it is trusted
7146 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7147 The problem was that one of the replacement routines had not been working
7148 since SSLeay releases. For now the offending routine has been replaced
7149 with non-optimised assembler. Even so, this now gives around 95%
7150 performance improvement for 1024 bit RSA signs.
7153 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7154 handling. Most clients have the effective key size in bits equal to
7155 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7156 A few however don't do this and instead use the size of the decrypted key
7157 to determine the RC2 key length and the AlgorithmIdentifier to determine
7158 the effective key length. In this case the effective key length can still
7159 be 40 bits but the key length can be 168 bits for example. This is fixed
7160 by manually forcing an RC2 key into the EVP_PKEY structure because the
7161 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7162 the key length and effective key length are equal.
7165 *) Add a bunch of functions that should simplify the creation of
7166 X509_NAME structures. Now you should be able to do:
7167 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7168 and have it automatically work out the correct field type and fill in
7169 the structures. The more adventurous can try:
7170 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7171 and it will (hopefully) work out the correct multibyte encoding.
7174 *) Change the 'req' utility to use the new field handling and multibyte
7175 copy routines. Before the DN field creation was handled in an ad hoc
7176 way in req, ca, and x509 which was rather broken and didn't support
7177 BMPStrings or UTF8Strings. Since some software doesn't implement
7178 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7179 using the dirstring_type option. See the new comment in the default
7180 openssl.cnf for more info.
7183 *) Make crypto/rand/md_rand.c more robust:
7184 - Assure unique random numbers after fork().
7185 - Make sure that concurrent threads access the global counter and
7186 md serializably so that we never lose entropy in them
7187 or use exactly the same state in multiple threads.
7188 Access to the large state is not always serializable because
7189 the additional locking could be a performance killer, and
7190 md should be large enough anyway.
7193 *) New file apps/app_rand.c with commonly needed functionality
7194 for handling the random seed file.
7196 Use the random seed file in some applications that previously did not:
7198 dsaparam -genkey (which also ignored its '-rand' option),
7201 x509 (when signing).
7202 Except on systems with /dev/urandom, it is crucial to have a random
7203 seed file at least for key creation, DSA signing, and for DH exchanges;
7204 for RSA signatures we could do without one.
7206 gendh and gendsa (unlike genrsa) used to read only the first byte
7207 of each file listed in the '-rand' option. The function as previously
7208 found in genrsa is now in app_rand.c and is used by all programs
7209 that support '-rand'.
7212 *) In RAND_write_file, use mode 0600 for creating files;
7213 don't just chmod when it may be too late.
7216 *) Report an error from X509_STORE_load_locations
7217 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7220 *) New function ASN1_mbstring_copy() this copies a string in either
7221 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7222 into an ASN1_STRING type. A mask of permissible types is passed
7223 and it chooses the "minimal" type to use or an error if not type
7227 *) Add function equivalents to the various macros in asn1.h. The old
7228 macros are retained with an M_ prefix. Code inside the library can
7229 use the M_ macros. External code (including the openssl utility)
7230 should *NOT* in order to be "shared library friendly".
7233 *) Add various functions that can check a certificate's extensions
7234 to see if it usable for various purposes such as SSL client,
7235 server or S/MIME and CAs of these types. This is currently
7236 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7237 verification. Also added a -purpose flag to x509 utility to
7238 print out all the purposes.
7241 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7245 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7246 for, obtain and decode and extension and obtain its critical flag.
7247 This allows all the necessary extension code to be handled in a
7248 single function call.
7251 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7252 platforms. See crypto/rc4/rc4_enc.c for further details.
7255 *) New -noout option to asn1parse. This causes no output to be produced
7256 its main use is when combined with -strparse and -out to extract data
7257 from a file (which may not be in ASN.1 format).
7260 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7261 when producing the local key id.
7262 [Richard Levitte <levitte@stacken.kth.se>]
7264 *) New option -dhparam in s_server. This allows a DH parameter file to be
7265 stated explicitly. If it is not stated then it tries the first server
7266 certificate file. The previous behaviour hard coded the filename
7270 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7271 a public key to be input or output. For example:
7272 openssl rsa -in key.pem -pubout -out pubkey.pem
7273 Also added necessary DSA public key functions to handle this.
7276 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7277 in the message. This was handled by allowing
7278 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7279 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7281 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7282 to the end of the strings whereas this didn't. This would cause problems
7283 if strings read with d2i_ASN1_bytes() were later modified.
7284 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7286 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7287 data and it contains EOF it will end up returning an error. This is
7288 caused by input 46 bytes long. The cause is due to the way base64
7289 BIOs find the start of base64 encoded data. They do this by trying a
7290 trial decode on each line until they find one that works. When they
7291 do a flag is set and it starts again knowing it can pass all the
7292 data directly through the decoder. Unfortunately it doesn't reset
7293 the context it uses. This means that if EOF is reached an attempt
7294 is made to pass two EOFs through the context and this causes the
7295 resulting error. This can also cause other problems as well. As is
7296 usual with these problems it takes *ages* to find and the fix is
7297 trivial: move one line.
7298 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7300 *) Ugly workaround to get s_client and s_server working under Windows. The
7301 old code wouldn't work because it needed to select() on sockets and the
7302 tty (for keypresses and to see if data could be written). Win32 only
7303 supports select() on sockets so we select() with a 1s timeout on the
7304 sockets and then see if any characters are waiting to be read, if none
7305 are present then we retry, we also assume we can always write data to
7306 the tty. This isn't nice because the code then blocks until we've
7307 received a complete line of data and it is effectively polling the
7308 keyboard at 1s intervals: however it's quite a bit better than not
7309 working at all :-) A dedicated Windows application might handle this
7310 with an event loop for example.
7313 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7314 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7315 will be called when RSA_sign() and RSA_verify() are used. This is useful
7316 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7317 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7318 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7319 This necessitated the support of an extra signature type NID_md5_sha1
7320 for SSL signatures and modifications to the SSL library to use it instead
7321 of calling RSA_public_decrypt() and RSA_private_encrypt().
7324 *) Add new -verify -CAfile and -CApath options to the crl program, these
7325 will lookup a CRL issuers certificate and verify the signature in a
7326 similar way to the verify program. Tidy up the crl program so it
7327 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7328 less strict. It will now permit CRL extensions even if it is not
7329 a V2 CRL: this will allow it to tolerate some broken CRLs.
7332 *) Initialize all non-automatic variables each time one of the openssl
7333 sub-programs is started (this is necessary as they may be started
7334 multiple times from the "OpenSSL>" prompt).
7335 [Lennart Bang, Bodo Moeller]
7337 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7338 removing all other RSA functionality (this is what NO_RSA does). This
7339 is so (for example) those in the US can disable those operations covered
7340 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7344 *) Non-copying interface to BIO pairs.
7345 (still largely untested)
7348 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7349 ASCII string. This was handled independently in various places before.
7352 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7353 UTF8 strings a character at a time.
7356 *) Use client_version from client hello to select the protocol
7357 (s23_srvr.c) and for RSA client key exchange verification
7358 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7361 *) Add various utility functions to handle SPKACs, these were previously
7362 handled by poking round in the structure internals. Added new function
7363 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7364 print, verify and generate SPKACs. Based on an original idea from
7365 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7368 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7371 *) Allow the config file extension section to be overwritten on the
7372 command line. Based on an original idea from Massimiliano Pala
7373 <madwolf@comune.modena.it>. The new option is called -extensions
7374 and can be applied to ca, req and x509. Also -reqexts to override
7375 the request extensions in req and -crlexts to override the crl extensions
7379 *) Add new feature to the SPKAC handling in ca. Now you can include
7380 the same field multiple times by preceding it by "XXXX." for example:
7383 this is the same syntax as used in the req config file.
7386 *) Allow certificate extensions to be added to certificate requests. These
7387 are specified in a 'req_extensions' option of the req section of the
7388 config file. They can be printed out with the -text option to req but
7389 are otherwise ignored at present.
7392 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7393 data read consists of only the final block it would not decrypted because
7394 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7395 A misplaced 'break' also meant the decrypted final block might not be
7396 copied until the next read.
7399 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7400 a few extra parameters to the DH structure: these will be useful if
7401 for example we want the value of 'q' or implement X9.42 DH.
7404 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7405 provides hooks that allow the default DSA functions or functions on a
7406 "per key" basis to be replaced. This allows hardware acceleration and
7407 hardware key storage to be handled without major modification to the
7408 library. Also added low level modexp hooks and CRYPTO_EX structure and
7409 associated functions.
7412 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7413 as "read only": it can't be written to and the buffer it points to will
7414 not be freed. Reading from a read only BIO is much more efficient than
7415 a normal memory BIO. This was added because there are several times when
7416 an area of memory needs to be read from a BIO. The previous method was
7417 to create a memory BIO and write the data to it, this results in two
7418 copies of the data and an O(n^2) reading algorithm. There is a new
7419 function BIO_new_mem_buf() which creates a read only memory BIO from
7420 an area of memory. Also modified the PKCS#7 routines to use read only
7424 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7425 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7426 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7427 but a retry condition occured while trying to read the rest.
7430 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7431 NID_pkcs7_encrypted by default: this was wrong since this should almost
7432 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7433 the encrypted data type: this is a more sensible place to put it and it
7434 allows the PKCS#12 code to be tidied up that duplicated this
7438 *) Changed obj_dat.pl script so it takes its input and output files on
7439 the command line. This should avoid shell escape redirection problems
7443 *) Initial support for certificate extension requests, these are included
7444 in things like Xenroll certificate requests. Included functions to allow
7445 extensions to be obtained and added.
7448 *) -crlf option to s_client and s_server for sending newlines as
7449 CRLF (as required by many protocols).
7452 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7454 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7455 [Ralf S. Engelschall]
7457 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7458 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7460 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7464 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7465 DH parameters/keys (q is lost during that conversion, but the resulting
7466 DH parameters contain its length).
7468 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7469 much faster than DH_generate_parameters (which creates parameters
7470 where p = 2*q + 1), and also the smaller q makes DH computations
7471 much more efficient (160-bit exponentiation instead of 1024-bit
7472 exponentiation); so this provides a convenient way to support DHE
7473 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7474 utter importance to use
7475 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7477 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7478 when such DH parameters are used, because otherwise small subgroup
7479 attacks may become possible!
7482 *) Avoid memory leak in i2d_DHparams.
7485 *) Allow the -k option to be used more than once in the enc program:
7486 this allows the same encrypted message to be read by multiple recipients.
7489 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7490 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7491 it will always use the numerical form of the OID, even if it has a short
7495 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7496 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7497 otherwise bn_mod_exp was called. In the case of hardware keys for example
7498 no private key components need be present and it might store extra data
7499 in the RSA structure, which cannot be accessed from bn_mod_exp.
7500 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7501 private key operations.
7504 *) Added support for SPARC Linux.
7507 *) pem_password_cb function type incompatibly changed from
7508 typedef int pem_password_cb(char *buf, int size, int rwflag);
7510 ....(char *buf, int size, int rwflag, void *userdata);
7511 so that applications can pass data to their callbacks:
7512 The PEM[_ASN1]_{read,write}... functions and macros now take an
7513 additional void * argument, which is just handed through whenever
7514 the password callback is called.
7515 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7517 New function SSL_CTX_set_default_passwd_cb_userdata.
7519 Compatibility note: As many C implementations push function arguments
7520 onto the stack in reverse order, the new library version is likely to
7521 interoperate with programs that have been compiled with the old
7522 pem_password_cb definition (PEM_whatever takes some data that
7523 happens to be on the stack as its last argument, and the callback
7524 just ignores this garbage); but there is no guarantee whatsoever that
7527 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7528 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7529 problems not only on Windows, but also on some Unix platforms.
7530 To avoid problematic command lines, these definitions are now in an
7531 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7532 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7535 *) MIPS III/IV assembler module is reimplemented.
7538 *) More DES library cleanups: remove references to srand/rand and
7539 delete an unused file.
7542 *) Add support for the the free Netwide assembler (NASM) under Win32,
7543 since not many people have MASM (ml) and it can be hard to obtain.
7544 This is currently experimental but it seems to work OK and pass all
7545 the tests. Check out INSTALL.W32 for info.
7548 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7549 without temporary keys kept an extra copy of the server key,
7550 and connections with temporary keys did not free everything in case
7554 *) New function RSA_check_key and new openssl rsa option -check
7555 for verifying the consistency of RSA keys.
7556 [Ulf Moeller, Bodo Moeller]
7558 *) Various changes to make Win32 compile work:
7559 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7560 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7561 comparison" warnings.
7562 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7565 *) Add a debugging option to PKCS#5 v2 key generation function: when
7566 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7567 derived keys are printed to stderr.
7570 *) Copy the flags in ASN1_STRING_dup().
7571 [Roman E. Pavlov <pre@mo.msk.ru>]
7573 *) The x509 application mishandled signing requests containing DSA
7574 keys when the signing key was also DSA and the parameters didn't match.
7576 It was supposed to omit the parameters when they matched the signing key:
7577 the verifying software was then supposed to automatically use the CA's
7578 parameters if they were absent from the end user certificate.
7580 Omitting parameters is no longer recommended. The test was also
7581 the wrong way round! This was probably due to unusual behaviour in
7582 EVP_cmp_parameters() which returns 1 if the parameters match.
7583 This meant that parameters were omitted when they *didn't* match and
7584 the certificate was useless. Certificates signed with 'ca' didn't have
7586 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7588 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7589 The interface is as follows:
7590 Applications can use
7591 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7592 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7593 "off" is now the default.
7594 The library internally uses
7595 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7596 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7597 to disable memory-checking temporarily.
7599 Some inconsistent states that previously were possible (and were
7600 even the default) are now avoided.
7602 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7603 with each memory chunk allocated; this is occasionally more helpful
7604 than just having a counter.
7606 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7608 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7612 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7613 which largely parallels "options", but is for changing API behaviour,
7614 whereas "options" are about protocol behaviour.
7615 Initial "mode" flags are:
7617 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7618 a single record has been written.
7619 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7620 retries use the same buffer location.
7621 (But all of the contents must be
7625 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7628 *) Fix problems with no-hmac etc.
7629 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7631 *) New functions RSA_get_default_method(), RSA_set_method() and
7632 RSA_get_method(). These allows replacement of RSA_METHODs without having
7633 to mess around with the internals of an RSA structure.
7636 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7637 Also really enable memory leak checks in openssl.c and in some
7639 [Chad C. Mulligan, Bodo Moeller]
7641 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7642 up the length of negative integers. This has now been simplified to just
7643 store the length when it is first determined and use it later, rather
7644 than trying to keep track of where data is copied and updating it to
7646 [Steve Henson, reported by Brien Wheeler
7647 <bwheeler@authentica-security.com>]
7649 *) Add a new function PKCS7_signatureVerify. This allows the verification
7650 of a PKCS#7 signature but with the signing certificate passed to the
7651 function itself. This contrasts with PKCS7_dataVerify which assumes the
7652 certificate is present in the PKCS#7 structure. This isn't always the
7653 case: certificates can be omitted from a PKCS#7 structure and be
7654 distributed by "out of band" means (such as a certificate database).
7657 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7658 function prototypes in pem.h, also change util/mkdef.pl to add the
7659 necessary function names.
7662 *) mk1mf.pl (used by Windows builds) did not properly read the
7663 options set by Configure in the top level Makefile, and Configure
7664 was not even able to write more than one option correctly.
7665 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7668 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7669 file to be loaded from a BIO or FILE pointer. The BIO version will
7670 for example allow memory BIOs to contain config info.
7673 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7674 Whoever hopes to achieve shared-library compatibility across versions
7675 must use this, not the compile-time macro.
7676 (Exercise 0.9.4: Which is the minimum library version required by
7678 Note: All this applies only to multi-threaded programs, others don't
7682 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7683 through a BIO pair triggered the default case, i.e.
7684 SSLerr(...,SSL_R_UNKNOWN_STATE).
7687 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7688 can use the SSL library even if none of the specific BIOs is
7692 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7693 for the encoded length.
7694 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7696 *) Add initial documentation of the X509V3 functions.
7699 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7700 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7701 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7702 secure PKCS#8 private key format with a high iteration count.
7705 *) Fix determination of Perl interpreter: A perl or perl5
7706 _directory_ in $PATH was also accepted as the interpreter.
7707 [Ralf S. Engelschall]
7709 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7710 wrong with it but it was very old and did things like calling
7711 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7715 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7716 to use the new extension code.
7719 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7720 with macros. This should make it easier to change their form, add extra
7721 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7725 *) Add to configuration table a new entry that can specify an alternative
7726 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7727 according to Mark Crispin <MRC@Panda.COM>.
7731 *) DES CBC did not update the IV. Weird.
7734 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7735 Changing the behaviour of the former might break existing programs --
7736 where IV updating is needed, des_ncbc_encrypt can be used.
7739 *) When bntest is run from "make test" it drives bc to check its
7740 calculations, as well as internally checking them. If an internal check
7741 fails, it needs to cause bc to give a non-zero result or make test carries
7742 on without noticing the failure. Fixed.
7745 *) DES library cleanups.
7748 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7749 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7750 ciphers. NOTE: although the key derivation function has been verified
7751 against some published test vectors it has not been extensively tested
7752 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7756 *) Instead of "mkdir -p", which is not fully portable, use new
7757 Perl script "util/mkdir-p.pl".
7760 *) Rewrite the way password based encryption (PBE) is handled. It used to
7761 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7762 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7763 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7764 the 'parameter' field of the AlgorithmIdentifier is passed to the
7765 underlying key generation function so it must do its own ASN1 parsing.
7766 This has also changed the EVP_PBE_CipherInit() function which now has a
7767 'parameter' argument instead of literal salt and iteration count values
7768 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7771 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7772 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7773 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7774 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7775 value was just used as a "magic string" and not used directly its
7776 value doesn't matter.
7779 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7783 *) "linux-sparc64" configuration (ultrapenguin).
7784 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7785 "linux-sparc" configuration.
7786 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7788 *) config now generates no-xxx options for missing ciphers.
7791 *) Support the EBCDIC character set (work in progress).
7792 File ebcdic.c not yet included because it has a different license.
7793 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7795 *) Support BS2000/OSD-POSIX.
7796 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7798 *) Make callbacks for key generation use void * instead of char *.
7801 *) Make S/MIME samples compile (not yet tested).
7804 *) Additional typesafe stacks.
7807 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7811 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7813 *) New configuration variant "sco5-gcc".
7815 *) Updated some demos.
7816 [Sean O Riordain, Wade Scholine]
7818 *) Add missing BIO_free at exit of pkcs12 application.
7821 *) Fix memory leak in conf.c.
7824 *) Updates for Win32 to assembler version of MD5.
7827 *) Set #! path to perl in apps/der_chop to where we found it
7828 instead of using a fixed path.
7831 *) SHA library changes for irix64-mips4-cc.
7834 *) Improvements for VMS support.
7838 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7840 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7841 This also avoids the problems with SC4.2 and unpatched SC5.
7842 [Andy Polyakov <appro@fy.chalmers.se>]
7844 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7845 These are required because of the typesafe stack would otherwise break
7846 existing code. If old code used a structure member which used to be STACK
7847 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7848 sk_num or sk_value it would produce an error because the num, data members
7849 are not present in STACK_OF. Now it just produces a warning. sk_set
7850 replaces the old method of assigning a value to sk_value
7851 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7852 that does this will no longer work (and should use sk_set instead) but
7853 this could be regarded as a "questionable" behaviour anyway.
7856 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7857 correctly handle encrypted S/MIME data.
7860 *) Change type of various DES function arguments from des_cblock
7861 (which means, in function argument declarations, pointer to char)
7862 to des_cblock * (meaning pointer to array with 8 char elements),
7863 which allows the compiler to do more typechecking; it was like
7864 that back in SSLeay, but with lots of ugly casts.
7866 Introduce new type const_des_cblock.
7869 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7870 problems: find RecipientInfo structure that matches recipient certificate
7871 and initialise the ASN1 structures properly based on passed cipher.
7874 *) Belatedly make the BN tests actually check the results.
7877 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7878 to and from BNs: it was completely broken. New compilation option
7879 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7880 key elements as negative integers.
7883 *) Reorganize and speed up MD5.
7884 [Andy Polyakov <appro@fy.chalmers.se>]
7887 [Richard Levitte <richard@levitte.org>]
7889 *) New option -out to asn1parse to allow the parsed structure to be
7890 output to a file. This is most useful when combined with the -strparse
7891 option to examine the output of things like OCTET STRINGS.
7894 *) Make SSL library a little more fool-proof by not requiring any longer
7895 that SSL_set_{accept,connect}_state be called before
7896 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7897 in many applications because usually everything *appeared* to work as
7898 intended anyway -- now it really works as intended).
7901 *) Move openssl.cnf out of lib/.
7904 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7905 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7906 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7907 [Ralf S. Engelschall]
7909 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7910 handle PKCS#7 enveloped data properly.
7911 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7913 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7914 copying pointers. The cert_st handling is changed by this in
7915 various ways (and thus what used to be known as ctx->default_cert
7916 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7917 any longer when s->cert does not give us what we need).
7918 ssl_cert_instantiate becomes obsolete by this change.
7919 As soon as we've got the new code right (possibly it already is?),
7920 we have solved a couple of bugs of the earlier code where s->cert
7921 was used as if it could not have been shared with other SSL structures.
7923 Note that using the SSL API in certain dirty ways now will result
7924 in different behaviour than observed with earlier library versions:
7925 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7926 does not influence s as it used to.
7928 In order to clean up things more thoroughly, inside SSL_SESSION
7929 we don't use CERT any longer, but a new structure SESS_CERT
7930 that holds per-session data (if available); currently, this is
7931 the peer's certificate chain and, for clients, the server's certificate
7932 and temporary key. CERT holds only those values that can have
7933 meaningful defaults in an SSL_CTX.
7936 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7937 from the internal representation. Various PKCS#7 fixes: remove some
7938 evil casts and set the enc_dig_alg field properly based on the signing
7942 *) Allow PKCS#12 password to be set from the command line or the
7943 environment. Let 'ca' get its config file name from the environment
7944 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7948 *) Allow certificate policies extension to use an IA5STRING for the
7949 organization field. This is contrary to the PKIX definition but
7950 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7954 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7955 without disallowing inline assembler and the like for non-pedantic builds.
7958 *) Support Borland C++ builder.
7959 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7964 *) SHA-1 cleanups and performance enhancements.
7965 [Andy Polyakov <appro@fy.chalmers.se>]
7967 *) Sparc v8plus assembler for the bignum library.
7968 [Andy Polyakov <appro@fy.chalmers.se>]
7970 *) Accept any -xxx and +xxx compiler options in Configure.
7973 *) Update HPUX configuration.
7976 *) Add missing sk_<type>_unshift() function to safestack.h
7977 [Ralf S. Engelschall]
7979 *) New function SSL_CTX_use_certificate_chain_file that sets the
7980 "extra_cert"s in addition to the certificate. (This makes sense
7981 only for "PEM" format files, as chains as a whole are not
7985 *) Support verify_depth from the SSL API.
7986 x509_vfy.c had what can be considered an off-by-one-error:
7987 Its depth (which was not part of the external interface)
7988 was actually counting the number of certificates in a chain;
7989 now it really counts the depth.
7992 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7993 instead of X509err, which often resulted in confusing error
7994 messages since the error codes are not globally unique
7995 (e.g. an alleged error in ssl3_accept when a certificate
7996 didn't match the private key).
7998 *) New function SSL_CTX_set_session_id_context that allows to set a default
7999 value (so that you don't need SSL_set_session_id_context for each
8000 connection using the SSL_CTX).
8003 *) OAEP decoding bug fix.
8006 *) Support INSTALL_PREFIX for package builders, as proposed by
8010 *) New Configure options "threads" and "no-threads". For systems
8011 where the proper compiler options are known (currently Solaris
8012 and Linux), "threads" is the default.
8015 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8018 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8019 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8020 such as /usr/local/bin.
8023 *) "make linux-shared" to build shared libraries.
8024 [Niels Poppe <niels@netbox.org>]
8026 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8029 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8030 extension adding in x509 utility.
8033 *) Remove NOPROTO sections and error code comments.
8036 *) Partial rewrite of the DEF file generator to now parse the ANSI
8040 *) New Configure options --prefix=DIR and --openssldir=DIR.
8043 *) Complete rewrite of the error code script(s). It is all now handled
8044 by one script at the top level which handles error code gathering,
8045 header rewriting and C source file generation. It should be much better
8046 than the old method: it now uses a modified version of Ulf's parser to
8047 read the ANSI prototypes in all header files (thus the old K&R definitions
8048 aren't needed for error creation any more) and do a better job of
8049 translating function codes into names. The old 'ASN1 error code imbedded
8050 in a comment' is no longer necessary and it doesn't use .err files which
8051 have now been deleted. Also the error code call doesn't have to appear all
8052 on one line (which resulted in some large lines...).
8055 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8058 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8059 0 (which usually indicates a closed connection), but continue reading.
8062 *) Fix some race conditions.
8065 *) Add support for CRL distribution points extension. Add Certificate
8066 Policies and CRL distribution points documentation.
8069 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8072 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8073 8 of keying material. Merlin has also confirmed interop with this fix
8074 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8075 [Merlin Hughes <merlin@baltimore.ie>]
8077 *) Fix lots of warnings.
8078 [Richard Levitte <levitte@stacken.kth.se>]
8080 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8081 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8082 [Richard Levitte <levitte@stacken.kth.se>]
8084 *) Fix problems with sizeof(long) == 8.
8085 [Andy Polyakov <appro@fy.chalmers.se>]
8087 *) Change functions to ANSI C.
8090 *) Fix typos in error codes.
8091 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8093 *) Remove defunct assembler files from Configure.
8096 *) SPARC v8 assembler BIGNUM implementation.
8097 [Andy Polyakov <appro@fy.chalmers.se>]
8099 *) Support for Certificate Policies extension: both print and set.
8100 Various additions to support the r2i method this uses.
8103 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8104 return a const string when you are expecting an allocated buffer.
8107 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8108 types DirectoryString and DisplayText.
8111 *) Add code to allow r2i extensions to access the configuration database,
8112 add an LHASH database driver and add several ctx helper functions.
8115 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8116 fail when they extended the size of a BIGNUM.
8119 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8120 support typesafe stack.
8123 *) Fix typo in SSL_[gs]et_options().
8124 [Nils Frostberg <nils@medcom.se>]
8126 *) Delete various functions and files that belonged to the (now obsolete)
8127 old X509V3 handling code.
8130 *) New Configure option "rsaref".
8133 *) Don't auto-generate pem.h.
8136 *) Introduce type-safe ASN.1 SETs.
8139 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8140 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8142 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8143 that links with OpenSSL (well at least cause lots of warnings), but fear
8144 not: the conversion is trivial, and it eliminates loads of evil casts. A
8145 few STACKed things have been converted already. Feel free to convert more.
8146 In the fullness of time, I'll do away with the STACK type altogether.
8149 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8150 specified in <certfile> by updating the entry in the index.txt file.
8151 This way one no longer has to edit the index.txt file manually for
8152 revoking a certificate. The -revoke option does the gory details now.
8153 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8155 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8156 `-text' option at all and this way the `-noout -text' combination was
8157 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8158 [Ralf S. Engelschall]
8160 *) Make sure a corresponding plain text error message exists for the
8161 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8162 verify callback function determined that a certificate was revoked.
8163 [Ralf S. Engelschall]
8165 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8166 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8167 all available cipers including rc5, which was forgotten until now.
8168 In order to let the testing shell script know which algorithms
8169 are available, a new (up to now undocumented) command
8170 "openssl list-cipher-commands" is used.
8173 *) Bugfix: s_client occasionally would sleep in select() when
8174 it should have checked SSL_pending() first.
8177 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8178 the raw DSA values prior to ASN.1 encoding.
8181 *) Tweaks to Configure
8182 [Niels Poppe <niels@netbox.org>]
8184 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8188 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8191 *) New config option to avoid instructions that are illegal on the 80386.
8192 The default code is faster, but requires at least a 486.
8195 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8196 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8197 same as SSL2_VERSION anyway.
8200 *) New "-showcerts" option for s_client.
8203 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8204 application. Various cleanups and fixes.
8207 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8208 modify error routines to work internally. Add error codes and PBE init
8209 to library startup routines.
8212 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8213 packing functions to asn1 and evp. Changed function names and error
8214 codes along the way.
8217 *) PKCS12 integration: and so it begins... First of several patches to
8218 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8219 objects to objects.h
8222 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8223 and display support for Thawte strong extranet extension.
8226 *) Add LinuxPPC support.
8227 [Jeff Dubrule <igor@pobox.org>]
8229 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8230 bn_div_words in alpha.s.
8231 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8233 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8234 OAEP isn't supported when OpenSSL is built with RSAref.
8235 [Ulf Moeller <ulf@fitug.de>]
8237 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8238 so they no longer are missing under -DNOPROTO.
8239 [Soren S. Jorvang <soren@t.dk>]
8242 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8244 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8245 doesn't work when the session is reused. Coming soon!
8248 *) Fix a security hole, that allows sessions to be reused in the wrong
8249 context thus bypassing client cert protection! All software that uses
8250 client certs and session caches in multiple contexts NEEDS PATCHING to
8251 allow session reuse! A fuller solution is in the works.
8252 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8254 *) Some more source tree cleanups (removed obsolete files
8255 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8256 permission on "config" script to be executable) and a fix for the INSTALL
8258 [Ulf Moeller <ulf@fitug.de>]
8260 *) Remove some legacy and erroneous uses of malloc, free instead of
8262 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8264 *) Make rsa_oaep_test return non-zero on error.
8265 [Ulf Moeller <ulf@fitug.de>]
8267 *) Add support for native Solaris shared libraries. Configure
8268 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8269 if someone would make that last step automatic.
8270 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8272 *) ctx_size was not built with the right compiler during "make links". Fixed.
8275 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8276 except NULL ciphers". This means the default cipher list will no longer
8277 enable NULL ciphers. They need to be specifically enabled e.g. with
8278 the string "DEFAULT:eNULL".
8281 *) Fix to RSA private encryption routines: if p < q then it would
8282 occasionally produce an invalid result. This will only happen with
8283 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8286 *) Be less restrictive and allow also `perl util/perlpath.pl
8287 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8288 because this way one can also use an interpreter named `perl5' (which is
8289 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8290 installed as `perl').
8291 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8293 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8294 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8296 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8297 advapi32.lib to Win32 build and change the pem test comparision
8298 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8299 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8300 and crypto/des/ede_cbcm_enc.c.
8303 *) DES quad checksum was broken on big-endian architectures. Fixed.
8306 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8307 Win32 test batch file so it (might) work again. The Win32 test batch file
8308 is horrible: I feel ill....
8311 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8312 in e_os.h. Audit of header files to check ANSI and non ANSI
8313 sections: 10 functions were absent from non ANSI section and not exported
8314 from Windows DLLs. Fixed up libeay.num for new functions.
8317 *) Make `openssl version' output lines consistent.
8318 [Ralf S. Engelschall]
8320 *) Fix Win32 symbol export lists for BIO functions: Added
8321 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8322 to ms/libeay{16,32}.def.
8323 [Ralf S. Engelschall]
8325 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8326 fine under Unix and passes some trivial tests I've now added. But the
8327 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8328 added to make sure no one expects that this stuff really works in the
8329 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8330 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8332 [Ralf S. Engelschall]
8334 *) Fix the generation of two part addresses in perl.
8335 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8337 *) Add config entry for Linux on MIPS.
8338 [John Tobey <jtobey@channel1.com>]
8340 *) Make links whenever Configure is run, unless we are on Windoze.
8343 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8344 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8348 *) Add a useful kludge to allow package maintainers to specify compiler and
8349 other platforms details on the command line without having to patch the
8350 Configure script everytime: One now can use ``perl Configure
8351 <id>:<details>'', i.e. platform ids are allowed to have details appended
8352 to them (seperated by colons). This is treated as there would be a static
8353 pre-configured entry in Configure's %table under key <id> with value
8354 <details> and ``perl Configure <id>'' is called. So, when you want to
8355 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8356 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8357 now, which overrides the FreeBSD-elf entry on-the-fly.
8358 [Ralf S. Engelschall]
8360 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8363 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8364 on the `perl Configure ...' command line. This way one can compile
8365 OpenSSL libraries with Position Independent Code (PIC) which is needed
8366 for linking it into DSOs.
8367 [Ralf S. Engelschall]
8369 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8373 *) Cleaned up the LICENSE document: The official contact for any license
8374 questions now is the OpenSSL core team under openssl-core@openssl.org.
8375 And add a paragraph about the dual-license situation to make sure people
8376 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8377 to the OpenSSL toolkit.
8378 [Ralf S. Engelschall]
8380 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8381 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8382 Additonally cleaned up the `make links' target: Remove unnecessary
8383 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8384 to speed processing and no longer clutter the display with confusing
8385 stuff. Instead only the actually done links are displayed.
8386 [Ralf S. Engelschall]
8388 *) Permit null encryption ciphersuites, used for authentication only. It used
8389 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8390 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8394 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8395 signed attributes when verifying signatures (this would break them),
8396 the detached data encoding was wrong and public keys obtained using
8397 X509_get_pubkey() weren't freed.
8400 *) Add text documentation for the BUFFER functions. Also added a work around
8401 to a Win95 console bug. This was triggered by the password read stuff: the
8402 last character typed gets carried over to the next fread(). If you were
8403 generating a new cert request using 'req' for example then the last
8404 character of the passphrase would be CR which would then enter the first
8408 *) Added the new `Includes OpenSSL Cryptography Software' button as
8409 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8410 button and can be used by applications based on OpenSSL to show the
8411 relationship to the OpenSSL project.
8412 [Ralf S. Engelschall]
8414 *) Remove confusing variables in function signatures in files
8415 ssl/ssl_lib.c and ssl/ssl.h.
8416 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8418 *) Don't install bss_file.c under PREFIX/include/
8419 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8421 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8422 functions that return function pointers and has support for NT specific
8423 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8424 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8425 unsigned to signed types: this was killing the Win32 compile.
8428 *) Add new certificate file to stack functions,
8429 SSL_add_dir_cert_subjects_to_stack() and
8430 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8431 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8432 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8433 This means that Apache-SSL and similar packages don't have to mess around
8434 to add as many CAs as they want to the preferred list.
8437 *) Experiment with doxygen documentation. Currently only partially applied to
8439 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8440 openssl.doxy as the configuration file.
8443 *) Get rid of remaining C++-style comments which strict C compilers hate.
8444 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8446 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8447 compiled in by default: it has problems with large keys.
8450 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8451 DH private keys and/or callback functions which directly correspond to
8452 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8453 is needed for applications which have to configure certificates on a
8454 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8456 For the RSA certificate situation is makes no difference, but
8457 for the DSA certificate situation this fixes the "no shared cipher"
8458 problem where the OpenSSL cipher selection procedure failed because the
8459 temporary keys were not overtaken from the context and the API provided
8460 no way to reconfigure them.
8461 The new functions now let applications reconfigure the stuff and they
8462 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8463 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8464 non-public-API function ssl_cert_instantiate() is used as a helper
8465 function and also to reduce code redundancy inside ssl_rsa.c.
8466 [Ralf S. Engelschall]
8468 *) Move s_server -dcert and -dkey options out of the undocumented feature
8469 area because they are useful for the DSA situation and should be
8470 recognized by the users.
8471 [Ralf S. Engelschall]
8473 *) Fix the cipher decision scheme for export ciphers: the export bits are
8474 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8475 SSL_EXP_MASK. So, the original variable has to be used instead of the
8476 already masked variable.
8477 [Richard Levitte <levitte@stacken.kth.se>]
8479 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8480 [Richard Levitte <levitte@stacken.kth.se>]
8482 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8483 from `int' to `unsigned int' because it's a length and initialized by
8484 EVP_DigestFinal() which expects an `unsigned int *'.
8485 [Richard Levitte <levitte@stacken.kth.se>]
8487 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8488 script. Instead use the usual Shell->Perl transition trick.
8489 [Ralf S. Engelschall]
8491 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8492 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8493 -noout -modulus' as it's already the case for `openssl rsa -noout
8494 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8495 currently the public key is printed (a decision which was already done by
8496 `openssl dsa -modulus' in the past) which serves a similar purpose.
8497 Additionally the NO_RSA no longer completely removes the whole -modulus
8498 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8500 [Ralf S. Engelschall]
8502 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8503 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8504 [Arne Ansper <arne@ats.cyber.ee>]
8506 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8507 to be added. Now both 'req' and 'ca' can use new objects defined in the
8511 *) Add cool BIO that does syslog (or event log on NT).
8512 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8514 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8515 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8516 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8517 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8520 *) Add preliminary config info for new extension code.
8523 *) Make RSA_NO_PADDING really use no padding.
8524 [Ulf Moeller <ulf@fitug.de>]
8526 *) Generate errors when private/public key check is done.
8529 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8530 for some CRL extensions and new objects added.
8533 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8534 key usage extension and fuller support for authority key id.
8537 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8538 padding method for RSA, which is recommended for new applications in PKCS
8539 #1 v2.0 (RFC 2437, October 1998).
8540 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8541 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8542 against Bleichbacher's attack on RSA.
8543 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8546 *) Updates to the new SSL compression code
8547 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8549 *) Fix so that the version number in the master secret, when passed
8550 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8551 (because the server will not accept higher), that the version number
8552 is 0x03,0x01, not 0x03,0x00
8553 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8555 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8556 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8557 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8560 *) Support for RAW extensions where an arbitrary extension can be
8561 created by including its DER encoding. See apps/openssl.cnf for
8565 *) Make sure latest Perl versions don't interpret some generated C array
8566 code as Perl array code in the crypto/err/err_genc.pl script.
8567 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8569 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8570 not many people have the assembler. Various Win32 compilation fixes and
8571 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8575 *) Modify configure script 'Configure' to automatically create crypto/date.h
8576 file under Win32 and also build pem.h from pem.org. New script
8577 util/mkfiles.pl to create the MINFO file on environments that can't do a
8578 'make files': perl util/mkfiles.pl >MINFO should work.
8581 *) Major rework of DES function declarations, in the pursuit of correctness
8582 and purity. As a result, many evil casts evaporated, and some weirdness,
8583 too. You may find this causes warnings in your code. Zapping your evil
8584 casts will probably fix them. Mostly.
8587 *) Fix for a typo in asn1.h. Bug fix to object creation script
8588 obj_dat.pl. It considered a zero in an object definition to mean
8589 "end of object": none of the objects in objects.h have any zeros
8590 so it wasn't spotted.
8591 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8593 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8594 Masking (CBCM). In the absence of test vectors, the best I have been able
8595 to do is check that the decrypt undoes the encrypt, so far. Send me test
8596 vectors if you have them.
8599 *) Correct calculation of key length for export ciphers (too much space was
8600 allocated for null ciphers). This has not been tested!
8603 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8604 message is now correct (it understands "crypto" and "ssl" on its
8605 command line). There is also now an "update" option. This will update
8606 the util/ssleay.num and util/libeay.num files with any new functions.
8608 perl util/mkdef.pl crypto ssl update
8609 it will update them.
8612 *) Overhauled the Perl interface (perl/*):
8613 - ported BN stuff to OpenSSL's different BN library
8614 - made the perl/ source tree CVS-aware
8615 - renamed the package from SSLeay to OpenSSL (the files still contain
8616 their history because I've copied them in the repository)
8617 - removed obsolete files (the test scripts will be replaced
8618 by better Test::Harness variants in the future)
8619 [Ralf S. Engelschall]
8621 *) First cut for a very conservative source tree cleanup:
8622 1. merge various obsolete readme texts into doc/ssleay.txt
8623 where we collect the old documents and readme texts.
8624 2. remove the first part of files where I'm already sure that we no
8625 longer need them because of three reasons: either they are just temporary
8626 files which were left by Eric or they are preserved original files where
8627 I've verified that the diff is also available in the CVS via "cvs diff
8628 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8629 the crypto/md/ stuff).
8630 [Ralf S. Engelschall]
8632 *) More extension code. Incomplete support for subject and issuer alt
8633 name, issuer and authority key id. Change the i2v function parameters
8634 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8635 what that's for :-) Fix to ASN1 macro which messed up
8636 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8639 *) Preliminary support for ENUMERATED type. This is largely copied from the
8643 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8644 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8646 *) Make sure `make rehash' target really finds the `openssl' program.
8647 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8649 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8650 like to hear about it if this slows down other processors.
8653 *) Add CygWin32 platform information to Configure script.
8654 [Alan Batie <batie@aahz.jf.intel.com>]
8656 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8657 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8659 *) New program nseq to manipulate netscape certificate sequences
8662 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8666 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8667 but the BN code had some problems that would cause failures when
8668 doing certificate verification and some other functions.
8669 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8671 *) Add ASN1 and PEM code to support netscape certificate sequences.
8674 *) Add ASN1 and PEM code to support netscape certificate sequences.
8677 *) Add several PKIX and private extended key usage OIDs.
8680 *) Modify the 'ca' program to handle the new extension code. Modify
8681 openssl.cnf for new extension format, add comments.
8684 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8685 and add a sample to openssl.cnf so req -x509 now adds appropriate
8689 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8690 error code, add initial support to X509_print() and x509 application.
8693 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8694 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8695 stuff is currently isolated and isn't even compiled yet.
8698 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8699 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8700 Removed the versions check from X509 routines when loading extensions:
8701 this allows certain broken certificates that don't set the version
8702 properly to be processed.
8705 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8706 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8707 can still be regenerated with "make depend".
8710 *) Spelling mistake in C version of CAST-128.
8711 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8713 *) Changes to the error generation code. The perl script err-code.pl
8714 now reads in the old error codes and retains the old numbers, only
8715 adding new ones if necessary. It also only changes the .err files if new
8716 codes are added. The makefiles have been modified to only insert errors
8717 when needed (to avoid needlessly modifying header files). This is done
8718 by only inserting errors if the .err file is newer than the auto generated
8719 C file. To rebuild all the error codes from scratch (the old behaviour)
8720 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8721 or delete all the .err files.
8724 *) CAST-128 was incorrectly implemented for short keys. The C version has
8725 been fixed, but is untested. The assembler versions are also fixed, but
8726 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8727 to regenerate it if needed.
8728 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8729 Hagino <itojun@kame.net>]
8731 *) File was opened incorrectly in randfile.c.
8732 [Ulf Möller <ulf@fitug.de>]
8734 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8735 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8736 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8737 al: it's just almost always a UTCTime. Note this patch adds new error
8738 codes so do a "make errors" if there are problems.
8741 *) Correct Linux 1 recognition in config.
8742 [Ulf Möller <ulf@fitug.de>]
8744 *) Remove pointless MD5 hash when using DSA keys in ca.
8745 [Anonymous <nobody@replay.com>]
8747 *) Generate an error if given an empty string as a cert directory. Also
8748 generate an error if handed NULL (previously returned 0 to indicate an
8749 error, but didn't set one).
8750 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8752 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8755 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8756 parameters. This was causing a warning which killed off the Win32 compile.
8759 *) Remove C++ style comments from crypto/bn/bn_local.h.
8760 [Neil Costigan <neil.costigan@celocom.com>]
8762 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8763 based on a text string, looking up short and long names and finally
8764 "dot" format. The "dot" format stuff didn't work. Added new function
8765 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8766 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8767 OID is not part of the table.
8770 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8771 X509_LOOKUP_by_alias().
8774 *) Sort openssl functions by name.
8777 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8778 encryption from sample DSA keys (in case anyone is interested the password
8782 *) Make _all_ *_free functions accept a NULL pointer.
8783 [Frans Heymans <fheymans@isaserver.be>]
8785 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8787 [Anonymous <nobody@replay.com>]
8789 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8790 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8792 *) Don't blow it for numeric -newkey arguments to apps/req.
8793 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8795 *) Temp key "for export" tests were wrong in s3_srvr.c.
8796 [Anonymous <nobody@replay.com>]
8798 *) Add prototype for temp key callback functions
8799 SSL_CTX_set_tmp_{rsa,dh}_callback().
8802 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8803 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8806 *) X509_name_add_entry() freed the wrong thing after an error.
8807 [Arne Ansper <arne@ats.cyber.ee>]
8809 *) rsa_eay.c would attempt to free a NULL context.
8810 [Arne Ansper <arne@ats.cyber.ee>]
8812 *) BIO_s_socket() had a broken should_retry() on Windoze.
8813 [Arne Ansper <arne@ats.cyber.ee>]
8815 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8816 [Arne Ansper <arne@ats.cyber.ee>]
8818 *) Make sure the already existing X509_STORE->depth variable is initialized
8819 in X509_STORE_new(), but document the fact that this variable is still
8820 unused in the certificate verification process.
8821 [Ralf S. Engelschall]
8823 *) Fix the various library and apps files to free up pkeys obtained from
8824 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8827 *) Fix reference counting in X509_PUBKEY_get(). This makes
8828 demos/maurice/example2.c work, amongst others, probably.
8829 [Steve Henson and Ben Laurie]
8831 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8832 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8833 are no longer created. This way we have a single and consistent command
8834 line interface `openssl <command>', similar to `cvs <command>'.
8835 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8837 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8838 BIT STRING wrapper always have zero unused bits.
8841 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8844 *) Make the top-level INSTALL documentation easier to understand.
8847 *) Makefiles updated to exit if an error occurs in a sub-directory
8848 make (including if user presses ^C) [Paul Sutton]
8850 *) Make Montgomery context stuff explicit in RSA data structure.
8853 *) Fix build order of pem and err to allow for generated pem.h.
8856 *) Fix renumbering bug in X509_NAME_delete_entry().
8859 *) Enhanced the err-ins.pl script so it makes the error library number
8860 global and can add a library name. This is needed for external ASN1 and
8861 other error libraries.
8864 *) Fixed sk_insert which never worked properly.
8867 *) Fix ASN1 macros so they can handle indefinite length construted
8868 EXPLICIT tags. Some non standard certificates use these: they can now
8872 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8873 into a single doc/ssleay.txt bundle. This way the information is still
8874 preserved but no longer messes up this directory. Now it's new room for
8875 the new set of documenation files.
8876 [Ralf S. Engelschall]
8878 *) SETs were incorrectly DER encoded. This was a major pain, because they
8879 shared code with SEQUENCEs, which aren't coded the same. This means that
8880 almost everything to do with SETs or SEQUENCEs has either changed name or
8881 number of arguments.
8882 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8884 *) Fix test data to work with the above.
8887 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8888 was already fixed by Eric for 0.9.1 it seems.
8889 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8891 *) Autodetect FreeBSD3.
8894 *) Fix various bugs in Configure. This affects the following platforms:
8898 unixware-2.0-pentium
8902 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8903 before they are needed.
8906 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8910 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8912 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8913 changed SSLeay to OpenSSL in version strings.
8914 [Ralf S. Engelschall]
8916 *) Some fixups to the top-level documents.
8919 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8920 because the symlink to include/ was missing.
8921 [Ralf S. Engelschall]
8923 *) Incorporated the popular no-RSA/DSA-only patches
8924 which allow to compile a RSA-free SSLeay.
8925 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8927 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8928 when "ssleay" is still not found.
8929 [Ralf S. Engelschall]
8931 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8932 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8934 *) Updated the README file.
8935 [Ralf S. Engelschall]
8937 *) Added various .cvsignore files in the CVS repository subdirs
8938 to make a "cvs update" really silent.
8939 [Ralf S. Engelschall]
8941 *) Recompiled the error-definition header files and added
8942 missing symbols to the Win32 linker tables.
8943 [Ralf S. Engelschall]
8945 *) Cleaned up the top-level documents;
8946 o new files: CHANGES and LICENSE
8947 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8948 o merged COPYRIGHT into LICENSE
8949 o removed obsolete TODO file
8950 o renamed MICROSOFT to INSTALL.W32
8951 [Ralf S. Engelschall]
8953 *) Removed dummy files from the 0.9.1b source tree:
8954 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8955 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8956 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8957 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8958 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8959 [Ralf S. Engelschall]
8961 *) Added various platform portability fixes.
8964 *) The Genesis of the OpenSSL rpject:
8965 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8966 Young and Tim J. Hudson created while they were working for C2Net until
8968 [The OpenSSL Project]
8971 Changes between 0.9.0b and 0.9.1b [not released]
8973 *) Updated a few CA certificates under certs/
8976 *) Changed some BIGNUM api stuff.
8979 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8980 DGUX x86, Linux Alpha, etc.
8983 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8984 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8988 *) Add -strparse option to asn1pars program which parses nested
8990 [Dr Stephen Henson <shenson@bigfoot.com>]
8992 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8995 *) DSA fix for "ca" program.
8998 *) Added "-genkey" option to "dsaparam" program.
9001 *) Added RIPE MD160 (rmd160) message digest.
9004 *) Added -a (all) option to "ssleay version" command.
9007 *) Added PLATFORM define which is the id given to Configure.
9010 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9013 *) Extended the ASN.1 parser routines.
9016 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9019 *) Added a BN_CTX to the BN library.
9022 *) Fixed the weak key values in DES library
9025 *) Changed API in EVP library for cipher aliases.
9028 *) Added support for RC2/64bit cipher.
9031 *) Converted the lhash library to the crypto/mem.c functions.
9034 *) Added more recognized ASN.1 object ids.
9037 *) Added more RSA padding checks for SSL/TLS.
9040 *) Added BIO proxy/filter functionality.
9043 *) Added extra_certs to SSL_CTX which can be used
9044 send extra CA certificates to the client in the CA cert chain sending
9045 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9048 *) Now Fortezza is denied in the authentication phase because
9049 this is key exchange mechanism is not supported by SSLeay at all.
9052 *) Additional PKCS1 checks.
9055 *) Support the string "TLSv1" for all TLS v1 ciphers.
9058 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9059 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9062 *) Fixed a few memory leaks.
9065 *) Fixed various code and comment typos.
9068 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9069 bytes sent in the client random.
9070 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob