5 Changes between 0.9.8j and 0.9.9 [xx XXX xxxx]
7 *) Support GeneralizedTime in ca utility.
8 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
10 *) Enhance the hash format used for certificate directory links. The new
11 form uses the canonical encoding (meaning equivalent names will work
12 even if they aren't identical) and uses SHA1 instead of MD5. This form
13 is incompatible with the older format and as a result c_rehash should
14 be used to rebuild symbolic links.
17 *) Make PKCS#8 the default write format for private keys, replacing the
18 traditional format. This form is standardised, more secure and doesn't
19 include an implicit MD5 dependency.
22 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
23 committed to OpenSSL should pass this lot as a minimum.
26 *) Add session ticket override functionality for use by EAP-FAST.
27 [Jouni Malinen <j@w1.fi>]
29 *) Modify HMAC functions to return a value. Since these can be implemented
30 in an ENGINE errors can occur.
33 *) Type-checked OBJ_bsearch_ex.
36 *) Type-checked OBJ_bsearch. Also some constification necessitated
37 by type-checking. Still to come: TXT_DB, bsearch(?),
38 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
42 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
43 seconds to a tm structure directly, instead of going through OS
44 specific date routines. This avoids any issues with OS routines such
45 as the year 2038 bug. New *_adj() functions for ASN1 time structures
46 and X509_time_adj_ex() to cover the extended range. The existing
47 X509_time_adj() is still usable and will no longer have any date issues.
50 *) Delta CRL support. New use deltas option which will attempt to locate
51 and search any appropriate delta CRLs available.
53 This work was sponsored by Google.
56 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
57 code and add additional score elements. Validate alternate CRL paths
58 as part of the CRL checking and indicate a new error "CRL path validation
59 error" in this case. Applications wanting additional details can use
60 the verify callback and check the new "parent" field. If this is not
61 NULL CRL path validation is taking place. Existing applications wont
62 see this because it requires extended CRL support which is off by
65 This work was sponsored by Google.
68 *) Support for freshest CRL extension.
70 This work was sponsored by Google.
73 *) Initial indirect CRL support. Currently only supported in the CRLs
74 passed directly and not via lookup. Process certificate issuer
75 CRL entry extension and lookup CRL entries by bother issuer name
76 and serial number. Check and process CRL issuer entry in IDP extension.
78 This work was sponsored by Google.
81 *) Add support for distinct certificate and CRL paths. The CRL issuer
82 certificate is validated separately in this case. Only enabled if
83 an extended CRL support flag is set: this flag will enable additional
84 CRL functionality in future.
86 This work was sponsored by Google.
89 *) Add support for policy mappings extension.
91 This work was sponsored by Google.
94 *) Fixes to pathlength constraint, self issued certificate handling,
95 policy processing to align with RFC3280 and PKITS tests.
97 This work was sponsored by Google.
100 *) Support for name constraints certificate extension. DN, email, DNS
101 and URI types are currently supported.
103 This work was sponsored by Google.
106 *) To cater for systems that provide a pointer-based thread ID rather
107 than numeric, deprecate the current numeric thread ID mechanism and
108 replace it with a structure and associated callback type. This
109 mechanism allows a numeric "hash" to be extracted from a thread ID in
110 either case, and on platforms where pointers are larger than 'long',
111 mixing is done to help ensure the numeric 'hash' is usable even if it
112 can't be guaranteed unique. The default mechanism is to use "&errno"
113 as a pointer-based thread ID to distinguish between threads.
115 Applications that want to provide their own thread IDs should now use
116 CRYPTO_THREADID_set_callback() to register a callback that will call
117 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
119 Note that ERR_remove_state() is now deprecated, because it is tied
120 to the assumption that thread IDs are numeric. ERR_remove_state(0)
121 to free the current thread's error state should be replaced by
122 ERR_remove_thread_state(NULL).
124 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
125 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
126 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
127 application was previously providing a numeric thread callback that
128 was inappropriate for distinguishing threads, then uniqueness might
129 have been obtained with &errno that happened immediately in the
130 intermediate development versions of OpenSSL; this is no longer the
131 case, the numeric thread callback will now override the automatic use
133 [Geoff Thorpe, with help from Bodo Moeller]
135 *) Initial support for different CRL issuing certificates. This covers a
136 simple case where the self issued certificates in the chain exist and
137 the real CRL issuer is higher in the existing chain.
139 This work was sponsored by Google.
142 *) Removed effectively defunct crypto/store from the build.
145 *) Revamp of STACK to provide stronger type-checking. Still to come:
146 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
147 ASN1_STRING, CONF_VALUE.
150 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
151 RAM on SSL connections. This option can save about 34k per idle SSL.
154 *) Revamp of LHASH to provide stronger type-checking. Still to come:
155 STACK, TXT_DB, bsearch, qsort.
158 *) Initial support for Cryptographic Message Syntax (aka CMS) based
159 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
160 support for data, signedData, compressedData, digestedData and
161 encryptedData, envelopedData types included. Scripts to check against
162 RFC4134 examples draft and interop and consistency checks of many
163 content types and variants.
166 *) Add options to enc utility to support use of zlib compression BIO.
169 *) Extend mk1mf to support importing of options and assembly language
170 files from Configure script, currently only included in VC-WIN32.
171 The assembly language rules can now optionally generate the source
172 files from the associated perl scripts.
175 *) Implement remaining functionality needed to support GOST ciphersuites.
176 Interop testing has been performed using CryptoPro implementations.
177 [Victor B. Wagner <vitus@cryptocom.ru>]
179 *) s390x assembler pack.
182 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
186 *) Implement Opaque PRF Input TLS extension as specified in
187 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
188 official specification yet and no extension type assignment by
189 IANA exists, this extension (for now) will have to be explicitly
190 enabled when building OpenSSL by providing the extension number
191 to use. For example, specify an option
193 -DTLSEXT_TYPE_opaque_prf_input=0x9527
195 to the "config" or "Configure" script to enable the extension,
196 assuming extension number 0x9527 (which is a completely arbitrary
197 and unofficial assignment based on the MD5 hash of the Internet
198 Draft). Note that by doing so, you potentially lose
199 interoperability with other TLS implementations since these might
200 be using the same extension number for other purposes.
202 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
203 opaque PRF input value to use in the handshake. This will create
204 an interal copy of the length-'len' string at 'src', and will
205 return non-zero for success.
207 To get more control and flexibility, provide a callback function
210 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
211 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
215 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
218 Callback function 'cb' will be called in handshakes, and is
219 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
220 Argument 'arg' is for application purposes (the value as given to
221 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
222 be provided to the callback function). The callback function
223 has to return non-zero to report success: usually 1 to use opaque
224 PRF input just if possible, or 2 to enforce use of the opaque PRF
225 input. In the latter case, the library will abort the handshake
226 if opaque PRF input is not successfully negotiated.
228 Arguments 'peerinput' and 'len' given to the callback function
229 will always be NULL and 0 in the case of a client. A server will
230 see the client's opaque PRF input through these variables if
231 available (NULL and 0 otherwise). Note that if the server
232 provides an opaque PRF input, the length must be the same as the
233 length of the client's opaque PRF input.
235 Note that the callback function will only be called when creating
236 a new session (session resumption can resume whatever was
237 previously negotiated), and will not be called in SSL 2.0
238 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
239 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
240 for applications that need to enforce opaque PRF input.
244 *) Update ssl code to support digests other than SHA1+MD5 for handshake
247 [Victor B. Wagner <vitus@cryptocom.ru>]
249 *) Add RFC4507 support to OpenSSL. This includes the corrections in
250 RFC4507bis. The encrypted ticket format is an encrypted encoded
251 SSL_SESSION structure, that way new session features are automatically
254 If a client application caches session in an SSL_SESSION structure
255 support is transparent because tickets are now stored in the encoded
258 The SSL_CTX structure automatically generates keys for ticket
259 protection in servers so again support should be possible
260 with no application modification.
262 If a client or server wishes to disable RFC4507 support then the option
263 SSL_OP_NO_TICKET can be set.
265 Add a TLS extension debugging callback to allow the contents of any client
266 or server extensions to be examined.
268 This work was sponsored by Google.
271 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
272 OpenSSL should now compile cleanly on gcc 4.2
273 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
275 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
276 support including streaming MAC support: this is required for GOST
278 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
280 *) Add option -stream to use PKCS#7 streaming in smime utility. New
281 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
282 to output in BER and PEM format.
285 *) Experimental support for use of HMAC via EVP_PKEY interface. This
286 allows HMAC to be handled via the EVP_DigestSign*() interface. The
287 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
288 ENGINE support for HMAC keys which are unextractable. New -mac and
289 -macopt options to dgst utility.
292 *) New option -sigopt to dgst utility. Update dgst to use
293 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
294 alternative signing paramaters such as X9.31 or PSS in the dgst
298 *) Change ssl_cipher_apply_rule(), the internal function that does
299 the work each time a ciphersuite string requests enabling
300 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
301 removing ("!foo+bar") a class of ciphersuites: Now it maintains
302 the order of disabled ciphersuites such that those ciphersuites
303 that most recently went from enabled to disabled not only stay
304 in order with respect to each other, but also have higher priority
305 than other disabled ciphersuites the next time ciphersuites are
308 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
309 the same ciphersuites as with "HIGH" alone, but in a specific
310 order where the PSK ciphersuites come first (since they are the
311 most recently disabled ciphersuites when "HIGH" is parsed).
313 Also, change ssl_create_cipher_list() (using this new
314 funcionality) such that between otherwise identical
315 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
319 *) Change ssl_create_cipher_list() so that it automatically
320 arranges the ciphersuites in reasonable order before starting
321 to process the rule string. Thus, the definition for "DEFAULT"
322 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
323 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
324 This makes it much easier to arrive at a reasonable default order
325 in applications for which anonymous ciphers are OK (meaning
326 that you can't actually use DEFAULT).
327 [Bodo Moeller; suggested by Victor Duchovni]
329 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
330 processing) into multiple integers instead of setting
331 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
332 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
333 (These masks as well as the individual bit definitions are hidden
334 away into the non-exported interface ssl/ssl_locl.h, so this
335 change to the definition of the SSL_CIPHER structure shouldn't
336 affect applications.) This give us more bits for each of these
337 categories, so there is no longer a need to coagulate AES128 and
338 AES256 into a single algorithm bit, and to coagulate Camellia128
339 and Camellia256 into a single algorithm bit, which has led to all
342 Thus, among other things, the kludge introduced in 0.9.7m and
343 0.9.8e for masking out AES256 independently of AES128 or masking
344 out Camellia256 independently of AES256 is not needed here in 0.9.9.
346 With the change, we also introduce new ciphersuite aliases that
347 so far were missing: "AES128", "AES256", "CAMELLIA128", and
351 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
352 Use the leftmost N bytes of the signature input if the input is
353 larger than the prime q (with N being the size in bytes of q).
356 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
357 it yet and it is largely untested.
360 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
363 *) Initial incomplete changes to avoid need for function casts in OpenSSL
364 some compilers (gcc 4.2 and later) reject their use. Safestack is
365 reimplemented. Update ASN1 to avoid use of legacy functions.
368 *) Win32/64 targets are linked with Winsock2.
371 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
372 to external functions. This can be used to increase CRL handling
373 efficiency especially when CRLs are very large by (for example) storing
374 the CRL revoked certificates in a database.
377 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
378 new CRLs added to a directory can be used. New command line option
379 -verify_return_error to s_client and s_server. This causes real errors
380 to be returned by the verify callback instead of carrying on no matter
381 what. This reflects the way a "real world" verify callback would behave.
384 *) GOST engine, supporting several GOST algorithms and public key formats.
385 Kindly donated by Cryptocom.
388 *) Partial support for Issuing Distribution Point CRL extension. CRLs
389 partitioned by DP are handled but no indirect CRL or reason partitioning
390 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
391 selected via a scoring technique which handles IDP and AKID in CRLs.
394 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
395 will ultimately be used for all verify operations: this will remove the
396 X509_STORE dependency on certificate verification and allow alternative
397 lookup methods. X509_STORE based implementations of these two callbacks.
400 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
401 Modify get_crl() to find a valid (unexpired) CRL if possible.
404 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
405 this would be called X509_CRL_cmp() but that name is already used by
406 a function that just compares CRL issuer names. Cache several CRL
407 extensions in X509_CRL structure and cache CRLDP in X509.
410 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
411 this maps equivalent X509_NAME structures into a consistent structure.
412 Name comparison can then be performed rapidly using memcmp().
415 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
419 *) Allow digests to supply their own micalg string for S/MIME type using
420 the ctrl EVP_MD_CTRL_MICALG.
423 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
424 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
425 ctrl. It can then customise the structure before and/or after signing
429 *) New function OBJ_add_sigid() to allow application defined signature OIDs
430 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
431 to free up any added signature OIDs.
434 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
435 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
436 digest and cipher tables. New options added to openssl utility:
437 list-message-digest-algorithms and list-cipher-algorithms.
440 *) Change the array representation of binary polynomials: the list
441 of degrees of non-zero coefficients is now terminated with -1.
442 Previously it was terminated with 0, which was also part of the
443 value; thus, the array representation was not applicable to
444 polynomials where t^0 has coefficient zero. This change makes
445 the array representation useful in a more general context.
448 *) Various modifications and fixes to SSL/TLS cipher string
449 handling. For ECC, the code now distinguishes between fixed ECDH
450 with RSA certificates on the one hand and with ECDSA certificates
451 on the other hand, since these are separate ciphersuites. The
452 unused code for Fortezza ciphersuites has been removed.
454 For consistency with EDH, ephemeral ECDH is now called "EECDH"
455 (not "ECDHE"). For consistency with the code for DH
456 certificates, use of ECDH certificates is now considered ECDH
457 authentication, not RSA or ECDSA authentication (the latter is
458 merely the CA's signing algorithm and not actively used in the
461 The temporary ciphersuite alias "ECCdraft" is no longer
462 available, and ECC ciphersuites are no longer excluded from "ALL"
463 and "DEFAULT". The following aliases now exist for RFC 4492
464 ciphersuites, most of these by analogy with the DH case:
466 kECDHr - ECDH cert, signed with RSA
467 kECDHe - ECDH cert, signed with ECDSA
468 kECDH - ECDH cert (signed with either RSA or ECDSA)
469 kEECDH - ephemeral ECDH
470 ECDH - ECDH cert or ephemeral ECDH
476 AECDH - anonymous ECDH
477 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
481 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
482 Use correct micalg parameters depending on digest(s) in signed message.
485 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
486 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
489 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
490 an engine to register a method. Add ENGINE lookups for methods and
491 functional reference processing.
494 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
495 EVP_{Sign,Verify}* which allow an application to customise the signature
499 *) New -resign option to smime utility. This adds one or more signers
500 to an existing PKCS#7 signedData structure. Also -md option to use an
501 alternative message digest algorithm for signing.
504 *) Tidy up PKCS#7 routines and add new functions to make it easier to
505 create PKCS7 structures containing multiple signers. Update smime
506 application to support multiple signers.
509 *) New -macalg option to pkcs12 utility to allow setting of an alternative
513 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
514 Reorganize PBE internals to lookup from a static table using NIDs,
515 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
516 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
517 PRF which will be automatically used with PBES2.
520 *) Replace the algorithm specific calls to generate keys in "req" with the
524 *) Update PKCS#7 enveloped data routines to use new API. This is now
525 supported by any public key method supporting the encrypt operation. A
526 ctrl is added to allow the public key algorithm to examine or modify
527 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
531 *) Add a ctrl to asn1 method to allow a public key algorithm to express
532 a default digest type to use. In most cases this will be SHA1 but some
533 algorithms (such as GOST) need to specify an alternative digest. The
534 return value indicates how strong the prefernce is 1 means optional and
535 2 is mandatory (that is it is the only supported type). Modify
536 ASN1_item_sign() to accept a NULL digest argument to indicate it should
537 use the default md. Update openssl utilities to use the default digest
538 type for signing if it is not explicitly indicated.
541 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
542 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
543 signing method from the key type. This effectively removes the link
544 between digests and public key types.
547 *) Add an OID cross reference table and utility functions. Its purpose is to
548 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
549 rsaEncryption. This will allow some of the algorithm specific hackery
550 needed to use the correct OID to be removed.
553 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
554 structures for PKCS7_sign(). They are now set up by the relevant public
558 *) Add provisional EC pkey method with support for ECDSA and ECDH.
561 *) Add support for key derivation (agreement) in the API, DH method and
565 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
566 public and private key formats. As a side effect these add additional
567 command line functionality not previously available: DSA signatures can be
568 generated and verified using pkeyutl and DH key support and generation in
573 [Oliver Tappe <zooey@hirschkaefer.de>]
575 *) New make target "install_html_docs" installs HTML renditions of the
577 [Oliver Tappe <zooey@hirschkaefer.de>]
579 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
580 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
581 support key and parameter generation and add initial key generation
582 functionality for RSA.
585 *) Add functions for main EVP_PKEY_method operations. The undocumented
586 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
587 EVP_PKEY_{encrypt,decrypt}_old.
590 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
591 key API, doesn't do much yet.
594 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
595 public key algorithms. New option to openssl utility:
596 "list-public-key-algorithms" to print out info.
599 *) Implement the Supported Elliptic Curves Extension for
600 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
603 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
604 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
607 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
608 utilities such as rsa, dsa, dsaparam etc except they process any key
612 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
613 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
614 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
618 *) Initial support for pluggable public key ASN1.
619 De-spaghettify the public key ASN1 handling. Move public and private
620 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
621 algorithm specific handling to a single module within the relevant
622 algorithm directory. Add functions to allow (near) opaque processing
623 of public and private key structures.
626 *) Implement the Supported Point Formats Extension for
627 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
630 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
631 for the psk identity [hint] and the psk callback functions to the
632 SSL_SESSION, SSL and SSL_CTX structure.
635 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
639 SSL_CTX_use_psk_identity_hint
640 SSL_get_psk_identity_hint
642 SSL_use_psk_identity_hint
644 [Mika Kousa and Pasi Eronen of Nokia Corporation]
646 *) Add RFC 3161 compliant time stamp request creation, response generation
647 and response verification functionality.
648 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
650 *) Add initial support for TLS extensions, specifically for the server_name
651 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
652 have new members for a host name. The SSL data structure has an
653 additional member SSL_CTX *initial_ctx so that new sessions can be
654 stored in that context to allow for session resumption, even after the
655 SSL has been switched to a new SSL_CTX in reaction to a client's
656 server_name extension.
658 New functions (subject to change):
661 SSL_get_servername_type()
664 New CTRL codes and macros (subject to change):
666 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
667 - SSL_CTX_set_tlsext_servername_callback()
668 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
669 - SSL_CTX_set_tlsext_servername_arg()
670 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
672 openssl s_client has a new '-servername ...' option.
674 openssl s_server has new options '-servername_host ...', '-cert2 ...',
675 '-key2 ...', '-servername_fatal' (subject to change). This allows
676 testing the HostName extension for a specific single host name ('-cert'
677 and '-key' remain fallbacks for handshakes without HostName
678 negotiation). If the unrecogninzed_name alert has to be sent, this by
679 default is a warning; it becomes fatal with the '-servername_fatal'
682 [Peter Sylvester, Remy Allais, Christophe Renou]
684 *) Whirlpool hash implementation is added.
687 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
688 bn(64,32). Because of instruction set limitations it doesn't have
689 any negative impact on performance. This was done mostly in order
690 to make it possible to share assembler modules, such as bn_mul_mont
691 implementations, between 32- and 64-bit builds without hassle.
694 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
695 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
699 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
700 dedicated Montgomery multiplication procedure, is introduced.
701 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
702 "64-bit" performance on certain 32-bit targets.
705 *) New option SSL_OP_NO_COMP to disable use of compression selectively
706 in SSL structures. New SSL ctrl to set maximum send fragment size.
707 Save memory by seeting the I/O buffer sizes dynamically instead of
708 using the maximum available value.
711 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
712 in addition to the text details.
715 *) Very, very preliminary EXPERIMENTAL support for printing of general
716 ASN1 structures. This currently produces rather ugly output and doesn't
717 handle several customised structures at all.
720 *) Integrated support for PVK file format and some related formats such
721 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
722 these in the 'rsa' and 'dsa' utilities.
725 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
728 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
729 place for the (very old) "NETSCAPE" format certificates which are now
730 handled using new ASN1 code equivalents.
733 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
734 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
735 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
738 *) Modify CRL distribution points extension code to print out previously
739 unsupported fields. Enhance extension setting code to allow setting of
743 *) Add print and set support for Issuing Distribution Point CRL extension.
746 *) Change 'Configure' script to enable Camellia by default.
749 Changes between 0.9.8j and 0.9.8k [xx XXX xxxx]
751 *) Permit restricted recursion of ASN1 strings. This is needed in practice
752 to handle some structures.
755 *) Improve efficiency of mem_gets: don't search whole buffer each time
757 [Jeremy Shapiro <jnshapir@us.ibm.com>]
759 *) New -hex option for openssl rand.
762 *) Print out UTF8String and NumericString when parsing ASN1.
765 *) Support NumericString type for name components.
768 *) Allow CC in the environment to override the automatically chosen
769 compiler. Note that nothing is done to ensure flags work with the
773 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
775 *) Properly check EVP_VerifyFinal() and similar return values
777 [Ben Laurie, Bodo Moeller, Google Security Team]
779 *) Enable TLS extensions by default.
782 *) Allow the CHIL engine to be loaded, whether the application is
783 multithreaded or not. (This does not release the developer from the
784 obligation to set up the dynamic locking callbacks.)
785 [Sander Temme <sander@temme.net>]
787 *) Use correct exit code if there is an error in dgst command.
788 [Steve Henson; problem pointed out by Roland Dirlewanger]
790 *) Tweak Configure so that you need to say "experimental-jpake" to enable
791 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
794 *) Add experimental JPAKE support, including demo authentication in
795 s_client and s_server.
798 *) Set the comparison function in v3_addr_canonize().
799 [Rob Austein <sra@hactrn.net>]
801 *) Add support for XMPP STARTTLS in s_client.
802 [Philip Paeps <philip@freebsd.org>]
804 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
805 to ensure that even with this option, only ciphersuites in the
806 server's preference list will be accepted. (Note that the option
807 applies only when resuming a session, so the earlier behavior was
808 just about the algorithm choice for symmetric cryptography.)
811 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
813 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
814 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
817 *) The fix in 0.9.8c that supposedly got rid of unsafe
818 double-checked locking was incomplete for RSA blinding,
819 addressing just one layer of what turns out to have been
820 doubly unsafe triple-checked locking.
822 So now fix this for real by retiring the MONT_HELPER macro
823 in crypto/rsa/rsa_eay.c.
825 [Bodo Moeller; problem pointed out by Marius Schilder]
827 *) Various precautionary measures:
829 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
831 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
832 (NB: This would require knowledge of the secret session ticket key
833 to exploit, in which case you'd be SOL either way.)
835 - Change bn_nist.c so that it will properly handle input BIGNUMs
836 outside the expected range.
838 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
841 [Neel Mehta, Bodo Moeller]
843 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
844 the load fails. Useful for distros.
845 [Ben Laurie and the FreeBSD team]
847 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
850 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
853 *) Expand ENGINE to support engine supplied SSL client certificate functions.
855 This work was sponsored by Logica.
858 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
859 keystores. Support for SSL/TLS client authentication too.
860 Not compiled unless enable-capieng specified to Configure.
862 This work was sponsored by Logica.
865 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
866 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
867 attribute creation routines such as certifcate requests and PKCS#12
871 Changes between 0.9.8g and 0.9.8h [28 May 2008]
873 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
874 handshake which could lead to a cilent crash as found using the
875 Codenomicon TLS test suite (CVE-2008-1672)
876 [Steve Henson, Mark Cox]
878 *) Fix double free in TLS server name extensions which could lead to
879 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
882 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
884 Clear the error queue to ensure that error entries left from
885 older function calls do not interfere with the correct operation.
886 [Lutz Jaenicke, Erik de Castro Lopo]
888 *) Remove root CA certificates of commercial CAs:
890 The OpenSSL project does not recommend any specific CA and does not
891 have any policy with respect to including or excluding any CA.
892 Therefore it does not make any sense to ship an arbitrary selection
893 of root CA certificates with the OpenSSL software.
896 *) RSA OAEP patches to fix two separate invalid memory reads.
897 The first one involves inputs when 'lzero' is greater than
898 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
899 before the beginning of from). The second one involves inputs where
900 the 'db' section contains nothing but zeroes (there is a one-byte
901 invalid read after the end of 'db').
902 [Ivan Nestlerode <inestlerode@us.ibm.com>]
904 *) Partial backport from 0.9.9-dev:
906 Introduce bn_mul_mont (dedicated Montgomery multiplication
907 procedure) as a candidate for BIGNUM assembler implementation.
908 While 0.9.9-dev uses assembler for various architectures, only
909 x86_64 is available by default here in the 0.9.8 branch, and
910 32-bit x86 is available through a compile-time setting.
912 To try the 32-bit x86 assembler implementation, use Configure
913 option "enable-montasm" (which exists only for this backport).
915 As "enable-montasm" for 32-bit x86 disclaims code stability
916 anyway, in this constellation we activate additional code
917 backported from 0.9.9-dev for further performance improvements,
918 namely BN_from_montgomery_word. (To enable this otherwise,
919 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
921 [Andy Polyakov (backport partially by Bodo Moeller)]
923 *) Add TLS session ticket callback. This allows an application to set
924 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
925 values. This is useful for key rollover for example where several key
926 sets may exist with different names.
929 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
930 This was broken until now in 0.9.8 releases, such that the only way
931 a registered ENGINE could be used (assuming it initialises
932 successfully on the host) was to explicitly set it as the default
933 for the relevant algorithms. This is in contradiction with 0.9.7
934 behaviour and the documentation. With this fix, when an ENGINE is
935 registered into a given algorithm's table of implementations, the
936 'uptodate' flag is reset so that auto-discovery will be used next
937 time a new context for that algorithm attempts to select an
939 [Ian Lister (tweaked by Geoff Thorpe)]
941 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
942 implemention in the following ways:
944 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
947 Lack of BER streaming support means one pass streaming processing is
948 only supported if data is detached: setting the streaming flag is
949 ignored for embedded content.
951 CMS support is disabled by default and must be explicitly enabled
952 with the enable-cms configuration option.
955 *) Update the GMP engine glue to do direct copies between BIGNUM and
956 mpz_t when openssl and GMP use the same limb size. Otherwise the
957 existing "conversion via a text string export" trick is still used.
958 [Paul Sheer <paulsheer@gmail.com>]
960 *) Zlib compression BIO. This is a filter BIO which compressed and
961 uncompresses any data passed through it.
964 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
965 RFC3394 compatible AES key wrapping.
968 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
969 sets string data without copying. X509_ALGOR_set0() and
970 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
971 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
972 from an X509_ATTRIBUTE structure optionally checking it occurs only
973 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
977 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
978 to get the expected BN_FLG_CONSTTIME behavior.
979 [Bodo Moeller (Google)]
983 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
984 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
985 - added some more tests to do_tests.pl
986 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
987 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
988 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
989 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
990 - various changes to netware.pl to enable gcc-cross builds on Win32
992 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
993 - various changes to fix missing prototype warnings
994 - fixed x86nasm.pl to create correct asm files for NASM COFF output
995 - added AES, WHIRLPOOL and CPUID assembler code to build files
996 - added missing AES assembler make rules to mk1mf.pl
997 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
998 [Guenter Knauf <eflash@gmx.net>]
1000 *) Implement certificate status request TLS extension defined in RFC3546.
1001 A client can set the appropriate parameters and receive the encoded
1002 OCSP response via a callback. A server can query the supplied parameters
1003 and set the encoded OCSP response in the callback. Add simplified examples
1004 to s_client and s_server.
1007 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1009 *) Fix various bugs:
1010 + Binary incompatibility of ssl_ctx_st structure
1011 + DTLS interoperation with non-compliant servers
1012 + Don't call get_session_cb() without proposed session
1013 + Fix ia64 assembler code
1014 [Andy Polyakov, Steve Henson]
1016 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1018 *) DTLS Handshake overhaul. There were longstanding issues with
1019 OpenSSL DTLS implementation, which were making it impossible for
1020 RFC 4347 compliant client to communicate with OpenSSL server.
1021 Unfortunately just fixing these incompatibilities would "cut off"
1022 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1023 server keeps tolerating non RFC compliant syntax. The opposite is
1024 not true, 0.9.8f client can not communicate with earlier server.
1025 This update even addresses CVE-2007-4995.
1028 *) Changes to avoid need for function casts in OpenSSL: some compilers
1029 (gcc 4.2 and later) reject their use.
1030 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1033 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1034 RFC4507bis. The encrypted ticket format is an encrypted encoded
1035 SSL_SESSION structure, that way new session features are automatically
1038 If a client application caches session in an SSL_SESSION structure
1039 support is transparent because tickets are now stored in the encoded
1042 The SSL_CTX structure automatically generates keys for ticket
1043 protection in servers so again support should be possible
1044 with no application modification.
1046 If a client or server wishes to disable RFC4507 support then the option
1047 SSL_OP_NO_TICKET can be set.
1049 Add a TLS extension debugging callback to allow the contents of any client
1050 or server extensions to be examined.
1052 This work was sponsored by Google.
1055 *) Add initial support for TLS extensions, specifically for the server_name
1056 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1057 have new members for a host name. The SSL data structure has an
1058 additional member SSL_CTX *initial_ctx so that new sessions can be
1059 stored in that context to allow for session resumption, even after the
1060 SSL has been switched to a new SSL_CTX in reaction to a client's
1061 server_name extension.
1063 New functions (subject to change):
1065 SSL_get_servername()
1066 SSL_get_servername_type()
1069 New CTRL codes and macros (subject to change):
1071 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1072 - SSL_CTX_set_tlsext_servername_callback()
1073 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1074 - SSL_CTX_set_tlsext_servername_arg()
1075 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1077 openssl s_client has a new '-servername ...' option.
1079 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1080 '-key2 ...', '-servername_fatal' (subject to change). This allows
1081 testing the HostName extension for a specific single host name ('-cert'
1082 and '-key' remain fallbacks for handshakes without HostName
1083 negotiation). If the unrecogninzed_name alert has to be sent, this by
1084 default is a warning; it becomes fatal with the '-servername_fatal'
1087 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1089 *) Add AES and SSE2 assembly language support to VC++ build.
1092 *) Mitigate attack on final subtraction in Montgomery reduction.
1095 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1096 (which previously caused an internal error).
1099 *) Squeeze another 10% out of IGE mode when in != out.
1102 *) AES IGE mode speedup.
1103 [Dean Gaudet (Google)]
1105 *) Add the Korean symmetric 128-bit cipher SEED (see
1106 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1107 add SEED ciphersuites from RFC 4162:
1109 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1110 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1111 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1112 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1114 To minimize changes between patchlevels in the OpenSSL 0.9.8
1115 series, SEED remains excluded from compilation unless OpenSSL
1116 is configured with 'enable-seed'.
1117 [KISA, Bodo Moeller]
1119 *) Mitigate branch prediction attacks, which can be practical if a
1120 single processor is shared, allowing a spy process to extract
1121 information. For detailed background information, see
1122 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1123 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1124 and Necessary Software Countermeasures"). The core of the change
1125 are new versions BN_div_no_branch() and
1126 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1127 respectively, which are slower, but avoid the security-relevant
1128 conditional branches. These are automatically called by BN_div()
1129 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1130 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1131 remove a conditional branch.
1133 BN_FLG_CONSTTIME is the new name for the previous
1134 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1135 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1136 in the exponent causes BN_mod_exp_mont() to use the alternative
1137 implementation in BN_mod_exp_mont_consttime().) The old name
1138 remains as a deprecated alias.
1140 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1141 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1142 constant-time implementations for more than just exponentiation.
1143 Here too the old name is kept as a deprecated alias.
1145 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1146 the BN_BLINDING structure gets an independent copy of the
1147 modulus. This means that the previous "BIGNUM *m" argument to
1148 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1149 essentially becomes "const BIGNUM *m", although we can't actually
1150 change this in the header file before 0.9.9. It allows
1151 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1152 enable BN_FLG_CONSTTIME.
1154 [Matthew D Wood (Intel Corp)]
1156 *) In the SSL/TLS server implementation, be strict about session ID
1157 context matching (which matters if an application uses a single
1158 external cache for different purposes). Previously,
1159 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1160 set. This did ensure strict client verification, but meant that,
1161 with applications using a single external cache for quite
1162 different requirements, clients could circumvent ciphersuite
1163 restrictions for a given session ID context by starting a session
1164 in a different context.
1167 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1168 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1169 authentication-only ciphersuites.
1172 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1173 not complete and could lead to a possible single byte overflow
1174 (CVE-2007-5135) [Ben Laurie]
1176 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1178 *) Since AES128 and AES256 (and similarly Camellia128 and
1179 Camellia256) share a single mask bit in the logic of
1180 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1181 kludge to work properly if AES128 is available and AES256 isn't
1182 (or if Camellia128 is available and Camellia256 isn't).
1185 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1186 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1187 When a point or a seed is encoded in a BIT STRING, we need to
1188 prevent the removal of trailing zero bits to get the proper DER
1189 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1190 of a NamedBitList, for which trailing 0 bits need to be removed.)
1193 *) Have SSL/TLS server implementation tolerate "mismatched" record
1194 protocol version while receiving ClientHello even if the
1195 ClientHello is fragmented. (The server can't insist on the
1196 particular protocol version it has chosen before the ServerHello
1197 message has informed the client about his choice.)
1200 *) Add RFC 3779 support.
1201 [Rob Austein for ARIN, Ben Laurie]
1203 *) Load error codes if they are not already present instead of using a
1204 static variable. This allows them to be cleanly unloaded and reloaded.
1205 Improve header file function name parsing.
1208 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1209 or CAPABILITY handshake as required by RFCs.
1212 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1214 *) Introduce limits to prevent malicious keys being able to
1215 cause a denial of service. (CVE-2006-2940)
1216 [Steve Henson, Bodo Moeller]
1218 *) Fix ASN.1 parsing of certain invalid structures that can result
1219 in a denial of service. (CVE-2006-2937) [Steve Henson]
1221 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1222 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1224 *) Fix SSL client code which could crash if connecting to a
1225 malicious SSLv2 server. (CVE-2006-4343)
1226 [Tavis Ormandy and Will Drewry, Google Security Team]
1228 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1229 match only those. Before that, "AES256-SHA" would be interpreted
1230 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1231 the same strength classification in 0.9.7h) as we currently only
1232 have a single AES bit in the ciphersuite description bitmap.
1233 That change, however, also applied to ciphersuite strings such as
1234 "RC4-MD5" that intentionally matched multiple ciphersuites --
1235 namely, SSL 2.0 ciphersuites in addition to the more common ones
1236 from SSL 3.0/TLS 1.0.
1238 So we change the selection algorithm again: Naming an explicit
1239 ciphersuite selects this one ciphersuite, and any other similar
1240 ciphersuite (same bitmap) from *other* protocol versions.
1241 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1242 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1244 Since SSL 2.0 does not have any ciphersuites for which the
1245 128/256 bit distinction would be relevant, this works for now.
1246 The proper fix will be to use different bits for AES128 and
1247 AES256, which would have avoided the problems from the beginning;
1248 however, bits are scarce, so we can only do this in a new release
1249 (not just a patchlevel) when we can change the SSL_CIPHER
1250 definition to split the single 'unsigned long mask' bitmap into
1251 multiple values to extend the available space.
1255 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1257 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1258 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1260 *) Add AES IGE and biIGE modes.
1263 *) Change the Unix randomness entropy gathering to use poll() when
1264 possible instead of select(), since the latter has some
1265 undesirable limitations.
1266 [Darryl Miles via Richard Levitte and Bodo Moeller]
1268 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1269 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1270 cannot be implicitly activated as part of, e.g., the "AES" alias.
1271 However, please upgrade to OpenSSL 0.9.9[-dev] for
1272 non-experimental use of the ECC ciphersuites to get TLS extension
1273 support, which is required for curve and point format negotiation
1274 to avoid potential handshake problems.
1277 *) Disable rogue ciphersuites:
1279 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1280 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1281 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1283 The latter two were purportedly from
1284 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1287 Also deactivate the remaining ciphersuites from
1288 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1289 unofficial, and the ID has long expired.
1292 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1293 dual-core machines) and other potential thread-safety issues.
1296 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1297 versions), which is now available for royalty-free use
1298 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1299 Also, add Camellia TLS ciphersuites from RFC 4132.
1301 To minimize changes between patchlevels in the OpenSSL 0.9.8
1302 series, Camellia remains excluded from compilation unless OpenSSL
1303 is configured with 'enable-camellia'.
1306 *) Disable the padding bug check when compression is in use. The padding
1307 bug check assumes the first packet is of even length, this is not
1308 necessarily true if compresssion is enabled and can result in false
1309 positives causing handshake failure. The actual bug test is ancient
1310 code so it is hoped that implementations will either have fixed it by
1311 now or any which still have the bug do not support compression.
1314 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1316 *) When applying a cipher rule check to see if string match is an explicit
1317 cipher suite and only match that one cipher suite if it is.
1320 *) Link in manifests for VC++ if needed.
1321 [Austin Ziegler <halostatue@gmail.com>]
1323 *) Update support for ECC-based TLS ciphersuites according to
1324 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1325 TLS extensions, which are supported starting with the 0.9.9
1326 branch, not in the OpenSSL 0.9.8 branch).
1329 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1330 opaque EVP_CIPHER_CTX handling.
1333 *) Fixes and enhancements to zlib compression code. We now only use
1334 "zlib1.dll" and use the default __cdecl calling convention on Win32
1335 to conform with the standards mentioned here:
1336 http://www.zlib.net/DLL_FAQ.txt
1337 Static zlib linking now works on Windows and the new --with-zlib-include
1338 --with-zlib-lib options to Configure can be used to supply the location
1339 of the headers and library. Gracefully handle case where zlib library
1343 *) Several fixes and enhancements to the OID generation code. The old code
1344 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1345 handle numbers larger than ULONG_MAX, truncated printing and had a
1346 non standard OBJ_obj2txt() behaviour.
1349 *) Add support for building of engines under engine/ as shared libraries
1350 under VC++ build system.
1353 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1354 Hopefully, we will not see any false combination of paths any more.
1357 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1359 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1360 (part of SSL_OP_ALL). This option used to disable the
1361 countermeasure against man-in-the-middle protocol-version
1362 rollback in the SSL 2.0 server implementation, which is a bad
1363 idea. (CVE-2005-2969)
1365 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1366 for Information Security, National Institute of Advanced Industrial
1367 Science and Technology [AIST], Japan)]
1369 *) Add two function to clear and return the verify parameter flags.
1372 *) Keep cipherlists sorted in the source instead of sorting them at
1373 runtime, thus removing the need for a lock.
1376 *) Avoid some small subgroup attacks in Diffie-Hellman.
1377 [Nick Mathewson and Ben Laurie]
1379 *) Add functions for well-known primes.
1382 *) Extended Windows CE support.
1383 [Satoshi Nakamura and Andy Polyakov]
1385 *) Initialize SSL_METHOD structures at compile time instead of during
1386 runtime, thus removing the need for a lock.
1389 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1390 attempting to decrypt each encrypted key in turn. Add support to
1394 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1396 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1399 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1402 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1403 key into the same file any more.
1406 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1409 *) Add -utf8 command line and config file option to 'ca'.
1410 [Stefan <stf@udoma.org]
1412 *) Removed the macro des_crypt(), as it seems to conflict with some
1413 libraries. Use DES_crypt().
1416 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1417 involves renaming the source and generated shared-libs for
1418 both. The engines will accept the corrected or legacy ids
1419 ('ncipher' and '4758_cca' respectively) when binding. NB,
1420 this only applies when building 'shared'.
1421 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1423 *) Add attribute functions to EVP_PKEY structure. Modify
1424 PKCS12_create() to recognize a CSP name attribute and
1425 use it. Make -CSP option work again in pkcs12 utility.
1428 *) Add new functionality to the bn blinding code:
1429 - automatic re-creation of the BN_BLINDING parameters after
1430 a fixed number of uses (currently 32)
1431 - add new function for parameter creation
1432 - introduce flags to control the update behaviour of the
1433 BN_BLINDING parameters
1434 - hide BN_BLINDING structure
1435 Add a second BN_BLINDING slot to the RSA structure to improve
1436 performance when a single RSA object is shared among several
1440 *) Add support for DTLS.
1441 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1443 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1444 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1447 *) Remove buggy and incompletet DH cert support from
1448 ssl/ssl_rsa.c and ssl/s3_both.c
1451 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1452 the apps/openssl applications.
1455 *) Compile clean with "-Wall -Wmissing-prototypes
1456 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1457 DEBUG_SAFESTACK must also be set.
1460 *) Change ./Configure so that certain algorithms can be disabled by default.
1461 The new counterpiece to "no-xxx" is "enable-xxx".
1463 The patented RC5 and MDC2 algorithms will now be disabled unless
1464 "enable-rc5" and "enable-mdc2", respectively, are specified.
1466 (IDEA remains enabled despite being patented. This is because IDEA
1467 is frequently required for interoperability, and there is no license
1468 fee for non-commercial use. As before, "no-idea" can be used to
1469 avoid this algorithm.)
1473 *) Add processing of proxy certificates (see RFC 3820). This work was
1474 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1475 EGEE (Enabling Grids for E-science in Europe).
1478 *) RC4 performance overhaul on modern architectures/implementations, such
1479 as Intel P4, IA-64 and AMD64.
1482 *) New utility extract-section.pl. This can be used specify an alternative
1483 section number in a pod file instead of having to treat each file as
1484 a separate case in Makefile. This can be done by adding two lines to the
1487 =for comment openssl_section:XXX
1489 The blank line is mandatory.
1493 *) New arguments -certform, -keyform and -pass for s_client and s_server
1494 to allow alternative format key and certificate files and passphrase
1498 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1499 update associated structures and add various utility functions.
1501 Add new policy related verify parameters, include policy checking in
1502 standard verify code. Enhance 'smime' application with extra parameters
1503 to support policy checking and print out.
1506 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1507 Nehemiah processors. These extensions support AES encryption in hardware
1508 as well as RNG (though RNG support is currently disabled).
1509 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1511 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1514 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1515 [Andy Polyakov and a number of other people]
1517 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1518 implementation contributed by IBM.
1519 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1521 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1522 exponent rather than 'unsigned long'. There is a corresponding change to
1523 the new 'rsa_keygen' element of the RSA_METHOD structure.
1524 [Jelte Jansen, Geoff Thorpe]
1526 *) Functionality for creating the initial serial number file is now
1527 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1529 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1530 number file to 1, which is bound to cause problems. To avoid
1531 the problems while respecting compatibility between different 0.9.7
1532 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1533 CA.pl for serial number initialization. With the new release 0.9.8,
1534 we can fix the problem directly in the 'ca' utility.)
1537 *) Reduced header interdepencies by declaring more opaque objects in
1538 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1539 give fewer recursive includes, which could break lazy source code - so
1540 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1541 developers should define this symbol when building and using openssl to
1542 ensure they track the recommended behaviour, interfaces, [etc], but
1543 backwards-compatible behaviour prevails when this isn't defined.
1546 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1549 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1550 This will generate a random key of the appropriate length based on the
1551 cipher context. The EVP_CIPHER can provide its own random key generation
1552 routine to support keys of a specific form. This is used in the des and
1553 3des routines to generate a key of the correct parity. Update S/MIME
1554 code to use new functions and hence generate correct parity DES keys.
1555 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1556 valid (weak or incorrect parity).
1559 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1560 as looking them up. This is useful when the verified structure may contain
1561 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1562 present unless the new PKCS7_NO_CRL flag is asserted.
1565 *) Extend ASN1 oid configuration module. It now additionally accepts the
1568 shortName = some long name, 1.2.3.4
1571 *) Reimplemented the BN_CTX implementation. There is now no more static
1572 limitation on the number of variables it can handle nor the depth of the
1573 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1574 information can now expand as required, and rather than having a single
1575 static array of bignums, BN_CTX now uses a linked-list of such arrays
1576 allowing it to expand on demand whilst maintaining the usefulness of
1577 BN_CTX's "bundling".
1580 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1581 to allow all RSA operations to function using a single BN_CTX.
1584 *) Preliminary support for certificate policy evaluation and checking. This
1585 is initially intended to pass the tests outlined in "Conformance Testing
1586 of Relying Party Client Certificate Path Processing Logic" v1.07.
1589 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1590 remained unused and not that useful. A variety of other little bignum
1591 tweaks and fixes have also been made continuing on from the audit (see
1595 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1596 associated ASN1, EVP and SSL functions and old ASN1 macros.
1599 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1600 and this should never fail. So the return value from the use of
1601 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1602 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1605 *) BN_CTX_get() should return zero-valued bignums, providing the same
1606 initialised value as BN_new().
1607 [Geoff Thorpe, suggested by Ulf Möller]
1609 *) Support for inhibitAnyPolicy certificate extension.
1612 *) An audit of the BIGNUM code is underway, for which debugging code is
1613 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1614 is considered valid when processing BIGNUMs, and causes execution to
1615 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1616 further steps are taken to deliberately pollute unused data in BIGNUM
1617 structures to try and expose faulty code further on. For now, openssl will
1618 (in its default mode of operation) continue to tolerate the inconsistent
1619 forms that it has tolerated in the past, but authors and packagers should
1620 consider trying openssl and their own applications when compiled with
1621 these debugging symbols defined. It will help highlight potential bugs in
1622 their own code, and will improve the test coverage for OpenSSL itself. At
1623 some point, these tighter rules will become openssl's default to improve
1624 maintainability, though the assert()s and other overheads will remain only
1625 in debugging configurations. See bn.h for more details.
1626 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1628 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1629 that can only be obtained through BN_CTX_new() (which implicitly
1630 initialises it). The presence of this function only made it possible
1631 to overwrite an existing structure (and cause memory leaks).
1634 *) Because of the callback-based approach for implementing LHASH as a
1635 template type, lh_insert() adds opaque objects to hash-tables and
1636 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1637 to clean up those corresponding objects before destroying the hash table
1638 (and losing the object pointers). So some over-zealous constifications in
1639 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1640 objects as "const" and the lh_doall[_arg] callback wrappers are not
1641 prototyped to have "const" restrictions on the object pointers they are
1642 given (and so aren't required to cast them away any more).
1645 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1646 (speed) prefers to use its own implementation. The two implementations
1647 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1648 its object type properly exposed (MS_TM) instead of casting to/from "char
1649 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1650 aren't necessarily the greatest nomenclatures - but this is what was used
1651 internally to the implementation so I've used that for now.
1654 *) Ensure that deprecated functions do not get compiled when
1655 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1656 the self-tests were still using deprecated key-generation functions so
1657 these have been updated also.
1660 *) Reorganise PKCS#7 code to separate the digest location functionality
1661 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1662 New function PKCS7_set_digest() to set the digest type for PKCS#7
1663 digestedData type. Add additional code to correctly generate the
1664 digestedData type and add support for this type in PKCS7 initialization
1668 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1669 structure of type "other".
1672 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1673 sure the loop does correctly stop and breaking ("division by zero")
1674 modulus operations are not performed. The (pre-generated) prime
1675 table crypto/bn/bn_prime.h was already correct, but it could not be
1676 re-generated on some platforms because of the "division by zero"
1677 situation in the script.
1678 [Ralf S. Engelschall]
1680 *) Update support for ECC-based TLS ciphersuites according to
1681 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1682 SHA-1 now is only used for "small" curves (where the
1683 representation of a field element takes up to 24 bytes); for
1684 larger curves, the field element resulting from ECDH is directly
1685 used as premaster secret.
1686 [Douglas Stebila (Sun Microsystems Laboratories)]
1688 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1689 curve secp160r1 to the tests.
1690 [Douglas Stebila (Sun Microsystems Laboratories)]
1692 *) Add the possibility to load symbols globally with DSO.
1693 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1695 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1696 control of the error stack.
1699 *) Add support for STORE in ENGINE.
1702 *) Add the STORE type. The intention is to provide a common interface
1703 to certificate and key stores, be they simple file-based stores, or
1704 HSM-type store, or LDAP stores, or...
1705 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1708 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1709 pass a list of arguments to any function as well as provide a way
1710 for a function to pass data back to the caller.
1713 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1714 works like BUF_strdup() but can be used to duplicate a portion of
1715 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1719 *) Add the function sk_find_ex() which works like sk_find(), but will
1720 return an index to an element even if an exact match couldn't be
1721 found. The index is guaranteed to point at the element where the
1722 searched-for key would be inserted to preserve sorting order.
1725 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1726 takes an extra flags argument for optional functionality. Currently,
1727 the following flags are defined:
1729 OBJ_BSEARCH_VALUE_ON_NOMATCH
1730 This one gets OBJ_bsearch_ex() to return a pointer to the first
1731 element where the comparing function returns a negative or zero
1734 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1735 This one gets OBJ_bsearch_ex() to return a pointer to the first
1736 element where the comparing function returns zero. This is useful
1737 if there are more than one element where the comparing function
1741 *) Make it possible to create self-signed certificates with 'openssl ca'
1742 in such a way that the self-signed certificate becomes part of the
1743 CA database and uses the same mechanisms for serial number generation
1744 as all other certificate signing. The new flag '-selfsign' enables
1745 this functionality. Adapt CA.sh and CA.pl.in.
1748 *) Add functionality to check the public key of a certificate request
1749 against a given private. This is useful to check that a certificate
1750 request can be signed by that key (self-signing).
1753 *) Make it possible to have multiple active certificates with the same
1754 subject in the CA index file. This is done only if the keyword
1755 'unique_subject' is set to 'no' in the main CA section (default
1756 if 'CA_default') of the configuration file. The value is saved
1757 with the database itself in a separate index attribute file,
1758 named like the index file with '.attr' appended to the name.
1761 *) Generate muti valued AVAs using '+' notation in config files for
1765 *) Support for nameConstraints certificate extension.
1768 *) Support for policyConstraints certificate extension.
1771 *) Support for policyMappings certificate extension.
1774 *) Make sure the default DSA_METHOD implementation only uses its
1775 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1776 and change its own handlers to be NULL so as to remove unnecessary
1777 indirection. This lets alternative implementations fallback to the
1778 default implementation more easily.
1781 *) Support for directoryName in GeneralName related extensions
1785 *) Make it possible to link applications using Makefile.shared.
1786 Make that possible even when linking against static libraries!
1789 *) Support for single pass processing for S/MIME signing. This now
1790 means that S/MIME signing can be done from a pipe, in addition
1791 cleartext signing (multipart/signed type) is effectively streaming
1792 and the signed data does not need to be all held in memory.
1794 This is done with a new flag PKCS7_STREAM. When this flag is set
1795 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1796 is done after the data is output (and digests calculated) in
1797 SMIME_write_PKCS7().
1800 *) Add full support for -rpath/-R, both in shared libraries and
1801 applications, at least on the platforms where it's known how
1805 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1806 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1807 will now compute a table of multiples of the generator that
1808 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1809 faster (notably in the case of a single point multiplication,
1810 scalar * generator).
1811 [Nils Larsch, Bodo Moeller]
1813 *) IPv6 support for certificate extensions. The various extensions
1814 which use the IP:a.b.c.d can now take IPv6 addresses using the
1815 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1819 *) Added an ENGINE that implements RSA by performing private key
1820 exponentiations with the GMP library. The conversions to and from
1821 GMP's mpz_t format aren't optimised nor are any montgomery forms
1822 cached, and on x86 it appears OpenSSL's own performance has caught up.
1823 However there are likely to be other architectures where GMP could
1824 provide a boost. This ENGINE is not built in by default, but it can be
1825 specified at Configure time and should be accompanied by the necessary
1826 linker additions, eg;
1827 ./config -DOPENSSL_USE_GMP -lgmp
1830 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1831 testing availability of engines with "-t" - the old behaviour is
1832 produced by increasing the feature's verbosity with "-tt".
1835 *) ECDSA routines: under certain error conditions uninitialized BN objects
1836 could be freed. Solution: make sure initialization is performed early
1837 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1841 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1842 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1843 software implementations. For DSA and DH, parameter generation can
1844 also be overriden by providing the appropriate method callbacks.
1847 *) Change the "progress" mechanism used in key-generation and
1848 primality testing to functions that take a new BN_GENCB pointer in
1849 place of callback/argument pairs. The new API functions have "_ex"
1850 postfixes and the older functions are reimplemented as wrappers for
1851 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1852 declarations of the old functions to help (graceful) attempts to
1853 migrate to the new functions. Also, the new key-generation API
1854 functions operate on a caller-supplied key-structure and return
1855 success/failure rather than returning a key or NULL - this is to
1856 help make "keygen" another member function of RSA_METHOD etc.
1858 Example for using the new callback interface:
1860 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1864 BN_GENCB_set(&my_cb, my_callback, my_arg);
1866 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1867 /* For the meaning of a, b in calls to my_callback(), see the
1868 * documentation of the function that calls the callback.
1869 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1870 * my_callback should return 1 if it wants BN_is_prime_ex()
1871 * to continue, or 0 to stop.
1876 *) Change the ZLIB compression method to be stateful, and make it
1877 available to TLS with the number defined in
1878 draft-ietf-tls-compression-04.txt.
1881 *) Add the ASN.1 structures and functions for CertificatePair, which
1882 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1884 CertificatePair ::= SEQUENCE {
1885 forward [0] Certificate OPTIONAL,
1886 reverse [1] Certificate OPTIONAL,
1887 -- at least one of the pair shall be present -- }
1889 Also implement the PEM functions to read and write certificate
1890 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1892 This needed to be defined, mostly for the sake of the LDAP
1893 attribute crossCertificatePair, but may prove useful elsewhere as
1897 *) Make it possible to inhibit symlinking of shared libraries in
1898 Makefile.shared, for Cygwin's sake.
1901 *) Extend the BIGNUM API by creating a function
1902 void BN_set_negative(BIGNUM *a, int neg);
1903 and a macro that behave like
1904 int BN_is_negative(const BIGNUM *a);
1906 to avoid the need to access 'a->neg' directly in applications.
1909 *) Implement fast modular reduction for pseudo-Mersenne primes
1910 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1911 EC_GROUP_new_curve_GFp() will now automatically use this
1913 [Nils Larsch <nla@trustcenter.de>]
1915 *) Add new lock type (CRYPTO_LOCK_BN).
1918 *) Change the ENGINE framework to automatically load engines
1919 dynamically from specific directories unless they could be
1920 found to already be built in or loaded. Move all the
1921 current engines except for the cryptodev one to a new
1923 The engines in engines/ are built as shared libraries if
1924 the "shared" options was given to ./Configure or ./config.
1925 Otherwise, they are inserted in libcrypto.a.
1926 /usr/local/ssl/engines is the default directory for dynamic
1927 engines, but that can be overriden at configure time through
1928 the usual use of --prefix and/or --openssldir, and at run
1929 time with the environment variable OPENSSL_ENGINES.
1930 [Geoff Thorpe and Richard Levitte]
1932 *) Add Makefile.shared, a helper makefile to build shared
1933 libraries. Addapt Makefile.org.
1936 *) Add version info to Win32 DLLs.
1937 [Peter 'Luna' Runestig" <peter@runestig.com>]
1939 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1940 can be added using this API to created arbitrary PKCS#12
1941 files while avoiding the low level API.
1943 New options to PKCS12_create(), key or cert can be NULL and
1944 will then be omitted from the output file. The encryption
1945 algorithm NIDs can be set to -1 for no encryption, the mac
1946 iteration count can be set to 0 to omit the mac.
1948 Enhance pkcs12 utility by making the -nokeys and -nocerts
1949 options work when creating a PKCS#12 file. New option -nomac
1950 to omit the mac, NONE can be set for an encryption algorithm.
1951 New code is modified to use the enhanced PKCS12_create()
1952 instead of the low level API.
1955 *) Extend ASN1 encoder to support indefinite length constructed
1956 encoding. This can output sequences tags and octet strings in
1957 this form. Modify pk7_asn1.c to support indefinite length
1958 encoding. This is experimental and needs additional code to
1959 be useful, such as an ASN1 bio and some enhanced streaming
1962 Extend template encode functionality so that tagging is passed
1963 down to the template encoder.
1966 *) Let 'openssl req' fail if an argument to '-newkey' is not
1967 recognized instead of using RSA as a default.
1970 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1971 As these are not official, they are not included in "ALL";
1972 the "ECCdraft" ciphersuite group alias can be used to select them.
1973 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1975 *) Add ECDH engine support.
1976 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1978 *) Add ECDH in new directory crypto/ecdh/.
1979 [Douglas Stebila (Sun Microsystems Laboratories)]
1981 *) Let BN_rand_range() abort with an error after 100 iterations
1982 without success (which indicates a broken PRNG).
1985 *) Change BN_mod_sqrt() so that it verifies that the input value
1986 is really the square of the return value. (Previously,
1987 BN_mod_sqrt would show GIGO behaviour.)
1990 *) Add named elliptic curves over binary fields from X9.62, SECG,
1991 and WAP/WTLS; add OIDs that were still missing.
1993 [Sheueling Chang Shantz and Douglas Stebila
1994 (Sun Microsystems Laboratories)]
1996 *) Extend the EC library for elliptic curves over binary fields
1997 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2000 EC_GF2m_simple_method
2004 EC_GROUP_new_curve_GF2m
2005 EC_GROUP_set_curve_GF2m
2006 EC_GROUP_get_curve_GF2m
2007 EC_POINT_set_affine_coordinates_GF2m
2008 EC_POINT_get_affine_coordinates_GF2m
2009 EC_POINT_set_compressed_coordinates_GF2m
2011 Point compression for binary fields is disabled by default for
2012 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2015 As binary polynomials are represented as BIGNUMs, various members
2016 of the EC_GROUP and EC_POINT data structures can be shared
2017 between the implementations for prime fields and binary fields;
2018 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2019 are essentially identical to their ..._GFp counterparts.
2020 (For simplicity, the '..._GFp' prefix has been dropped from
2021 various internal method names.)
2023 An internal 'field_div' method (similar to 'field_mul' and
2024 'field_sqr') has been added; this is used only for binary fields.
2026 [Sheueling Chang Shantz and Douglas Stebila
2027 (Sun Microsystems Laboratories)]
2029 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2030 through methods ('mul', 'precompute_mult').
2032 The generic implementations (now internally called 'ec_wNAF_mul'
2033 and 'ec_wNAF_precomputed_mult') remain the default if these
2034 methods are undefined.
2036 [Sheueling Chang Shantz and Douglas Stebila
2037 (Sun Microsystems Laboratories)]
2039 *) New function EC_GROUP_get_degree, which is defined through
2040 EC_METHOD. For curves over prime fields, this returns the bit
2041 length of the modulus.
2043 [Sheueling Chang Shantz and Douglas Stebila
2044 (Sun Microsystems Laboratories)]
2046 *) New functions EC_GROUP_dup, EC_POINT_dup.
2047 (These simply call ..._new and ..._copy).
2049 [Sheueling Chang Shantz and Douglas Stebila
2050 (Sun Microsystems Laboratories)]
2052 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2053 Polynomials are represented as BIGNUMs (where the sign bit is not
2054 used) in the following functions [macros]:
2057 BN_GF2m_sub [= BN_GF2m_add]
2058 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2059 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2060 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2062 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2063 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2064 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2065 BN_GF2m_cmp [= BN_ucmp]
2067 (Note that only the 'mod' functions are actually for fields GF(2^m).
2068 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2070 For some functions, an the irreducible polynomial defining a
2071 field can be given as an 'unsigned int[]' with strictly
2072 decreasing elements giving the indices of those bits that are set;
2073 i.e., p[] represents the polynomial
2074 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2076 p[0] > p[1] > ... > p[k] = 0.
2077 This applies to the following functions:
2082 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2083 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2085 BN_GF2m_mod_sqrt_arr
2086 BN_GF2m_mod_solve_quad_arr
2090 Conversion can be performed by the following functions:
2095 bntest.c has additional tests for binary polynomial arithmetic.
2097 Two implementations for BN_GF2m_mod_div() are available.
2098 The default algorithm simply uses BN_GF2m_mod_inv() and
2099 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2100 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2101 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2103 [Sheueling Chang Shantz and Douglas Stebila
2104 (Sun Microsystems Laboratories)]
2106 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2107 functionality is disabled at compile-time.
2108 [Douglas Stebila <douglas.stebila@sun.com>]
2110 *) Change default behaviour of 'openssl asn1parse' so that more
2111 information is visible when viewing, e.g., a certificate:
2113 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2114 mode the content of non-printable OCTET STRINGs is output in a
2115 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2116 avoid the appearance of a printable string.
2117 [Nils Larsch <nla@trustcenter.de>]
2119 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2121 EC_GROUP_set_asn1_flag()
2122 EC_GROUP_get_asn1_flag()
2123 EC_GROUP_set_point_conversion_form()
2124 EC_GROUP_get_point_conversion_form()
2125 These control ASN1 encoding details:
2126 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2127 has been set to OPENSSL_EC_NAMED_CURVE.
2128 - Points are encoded in uncompressed form by default; options for
2129 asn1_for are as for point2oct, namely
2130 POINT_CONVERSION_COMPRESSED
2131 POINT_CONVERSION_UNCOMPRESSED
2132 POINT_CONVERSION_HYBRID
2134 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2137 EC_GROUP_get0_seed()
2138 EC_GROUP_get_seed_len()
2139 This is used only for ASN1 purposes (so far).
2140 [Nils Larsch <nla@trustcenter.de>]
2142 *) Add 'field_type' member to EC_METHOD, which holds the NID
2143 of the appropriate field type OID. The new function
2144 EC_METHOD_get_field_type() returns this value.
2145 [Nils Larsch <nla@trustcenter.de>]
2150 EC_POINT_point2hex()
2151 EC_POINT_hex2point()
2152 providing useful interfaces to EC_POINT_point2oct() and
2153 EC_POINT_oct2point().
2154 [Nils Larsch <nla@trustcenter.de>]
2156 *) Change internals of the EC library so that the functions
2157 EC_GROUP_set_generator()
2158 EC_GROUP_get_generator()
2159 EC_GROUP_get_order()
2160 EC_GROUP_get_cofactor()
2161 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2162 to methods, which would lead to unnecessary code duplication when
2163 adding different types of curves.
2164 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2166 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2167 arithmetic, and such that modified wNAFs are generated
2168 (which avoid length expansion in many cases).
2171 *) Add a function EC_GROUP_check_discriminant() (defined via
2172 EC_METHOD) that verifies that the curve discriminant is non-zero.
2174 Add a function EC_GROUP_check() that makes some sanity tests
2175 on a EC_GROUP, its generator and order. This includes
2176 EC_GROUP_check_discriminant().
2177 [Nils Larsch <nla@trustcenter.de>]
2179 *) Add ECDSA in new directory crypto/ecdsa/.
2181 Add applications 'openssl ecparam' and 'openssl ecdsa'
2182 (these are based on 'openssl dsaparam' and 'openssl dsa').
2184 ECDSA support is also included in various other files across the
2185 library. Most notably,
2186 - 'openssl req' now has a '-newkey ecdsa:file' option;
2187 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2188 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2189 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2190 them suitable for ECDSA where domain parameters must be
2191 extracted before the specific public key;
2192 - ECDSA engine support has been added.
2193 [Nils Larsch <nla@trustcenter.de>]
2195 *) Include some named elliptic curves, and add OIDs from X9.62,
2196 SECG, and WAP/WTLS. Each curve can be obtained from the new
2198 EC_GROUP_new_by_curve_name(),
2199 and the list of available named curves can be obtained with
2200 EC_get_builtin_curves().
2201 Also add a 'curve_name' member to EC_GROUP objects, which can be
2203 EC_GROUP_set_curve_name()
2204 EC_GROUP_get_curve_name()
2205 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2207 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2208 was actually never needed) and in BN_mul(). The removal in BN_mul()
2209 required a small change in bn_mul_part_recursive() and the addition
2210 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2211 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2212 bn_sub_words() and bn_add_words() except they take arrays with
2216 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
2218 *) In the SSL/TLS server implementation, be strict about session ID
2219 context matching (which matters if an application uses a single
2220 external cache for different purposes). Previously,
2221 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2222 set. This did ensure strict client verification, but meant that,
2223 with applications using a single external cache for quite
2224 different requirements, clients could circumvent ciphersuite
2225 restrictions for a given session ID context by starting a session
2226 in a different context.
2229 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2231 *) Cleanse PEM buffers before freeing them since they may contain
2233 [Benjamin Bennett <ben@psc.edu>]
2235 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2236 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2237 authentication-only ciphersuites.
2240 *) Since AES128 and AES256 share a single mask bit in the logic of
2241 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2242 kludge to work properly if AES128 is available and AES256 isn't.
2245 *) Expand security boundary to match 1.1.1 module.
2248 *) Remove redundant features: hash file source, editing of test vectors
2249 modify fipsld to use external fips_premain.c signature.
2252 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2253 run algorithm test programs.
2256 *) Make algorithm test programs more tolerant of whitespace.
2259 *) Have SSL/TLS server implementation tolerate "mismatched" record
2260 protocol version while receiving ClientHello even if the
2261 ClientHello is fragmented. (The server can't insist on the
2262 particular protocol version it has chosen before the ServerHello
2263 message has informed the client about his choice.)
2266 *) Load error codes if they are not already present instead of using a
2267 static variable. This allows them to be cleanly unloaded and reloaded.
2270 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2272 *) Introduce limits to prevent malicious keys being able to
2273 cause a denial of service. (CVE-2006-2940)
2274 [Steve Henson, Bodo Moeller]
2276 *) Fix ASN.1 parsing of certain invalid structures that can result
2277 in a denial of service. (CVE-2006-2937) [Steve Henson]
2279 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2280 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2282 *) Fix SSL client code which could crash if connecting to a
2283 malicious SSLv2 server. (CVE-2006-4343)
2284 [Tavis Ormandy and Will Drewry, Google Security Team]
2286 *) Change ciphersuite string processing so that an explicit
2287 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2288 will no longer include "AES128-SHA"), and any other similar
2289 ciphersuite (same bitmap) from *other* protocol versions (so that
2290 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2291 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2292 changes from 0.9.8b and 0.9.8d.
2295 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2297 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2298 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2300 *) Change the Unix randomness entropy gathering to use poll() when
2301 possible instead of select(), since the latter has some
2302 undesirable limitations.
2303 [Darryl Miles via Richard Levitte and Bodo Moeller]
2305 *) Disable rogue ciphersuites:
2307 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2308 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2309 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2311 The latter two were purportedly from
2312 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2315 Also deactive the remaining ciphersuites from
2316 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2317 unofficial, and the ID has long expired.
2320 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2321 dual-core machines) and other potential thread-safety issues.
2324 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2326 *) Adapt fipsld and the build system to link against the validated FIPS
2327 module in FIPS mode.
2330 *) Fixes for VC++ 2005 build under Windows.
2333 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2334 from a Windows bash shell such as MSYS. It is autodetected from the
2335 "config" script when run from a VC++ environment. Modify standard VC++
2336 build to use fipscanister.o from the GNU make build.
2339 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2341 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2342 The value now differs depending on if you build for FIPS or not.
2343 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2344 safely run with a non-FIPSed libcrypto, as it may crash because of
2345 the difference induced by this change.
2348 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2350 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2351 (part of SSL_OP_ALL). This option used to disable the
2352 countermeasure against man-in-the-middle protocol-version
2353 rollback in the SSL 2.0 server implementation, which is a bad
2354 idea. (CVE-2005-2969)
2356 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2357 for Information Security, National Institute of Advanced Industrial
2358 Science and Technology [AIST], Japan)]
2360 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2361 mainly for FIPS compliance and not fully integrated at this stage.
2364 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2365 the exponentiation using a fixed-length exponent. (Otherwise,
2366 the information leaked through timing could expose the secret key
2367 after many signatures; cf. Bleichenbacher's attack on DSA with
2371 *) Make a new fixed-window mod_exp implementation the default for
2372 RSA, DSA, and DH private-key operations so that the sequence of
2373 squares and multiplies and the memory access pattern are
2374 independent of the particular secret key. This will mitigate
2375 cache-timing and potential related attacks.
2377 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2378 and this is automatically used by BN_mod_exp_mont() if the new flag
2379 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2380 will use this BN flag for private exponents unless the flag
2381 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2382 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2384 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2386 *) Change the client implementation for SSLv23_method() and
2387 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2388 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2389 (Previously, the SSL 2.0 backwards compatible Client Hello
2390 message format would be used even with SSL_OP_NO_SSLv2.)
2393 *) Add support for smime-type MIME parameter in S/MIME messages which some
2397 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2398 a threadsafe manner. Modify rsa code to use new function and add calls
2399 to dsa and dh code (which had race conditions before).
2402 *) Include the fixed error library code in the C error file definitions
2403 instead of fixing them up at runtime. This keeps the error code
2404 structures constant.
2407 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2409 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2412 *) Fixes for newer kerberos headers. NB: the casts are needed because
2413 the 'length' field is signed on one version and unsigned on another
2414 with no (?) obvious way to tell the difference, without these VC++
2415 complains. Also the "definition" of FAR (blank) is no longer included
2416 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2417 some needed definitions.
2420 *) Undo Cygwin change.
2423 *) Added support for proxy certificates according to RFC 3820.
2424 Because they may be a security thread to unaware applications,
2425 they must be explicitely allowed in run-time. See
2426 docs/HOWTO/proxy_certificates.txt for further information.
2429 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2431 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2432 server and client random values. Previously
2433 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2434 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2436 This change has negligible security impact because:
2438 1. Server and client random values still have 24 bytes of pseudo random
2441 2. Server and client random values are sent in the clear in the initial
2444 3. The master secret is derived using the premaster secret (48 bytes in
2445 size for static RSA ciphersuites) as well as client server and random
2448 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2451 [Stephen Henson, reported by UK NISCC]
2453 *) Use Windows randomness collection on Cygwin.
2456 *) Fix hang in EGD/PRNGD query when communication socket is closed
2457 prematurely by EGD/PRNGD.
2458 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2460 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2463 *) Back-port of selected performance improvements from development
2464 branch, as well as improved support for PowerPC platforms.
2467 *) Add lots of checks for memory allocation failure, error codes to indicate
2468 failure and freeing up memory if a failure occurs.
2469 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2471 *) Add new -passin argument to dgst.
2474 *) Perform some character comparisons of different types in X509_NAME_cmp:
2475 this is needed for some certificates that reencode DNs into UTF8Strings
2476 (in violation of RFC3280) and can't or wont issue name rollover
2480 *) Make an explicit check during certificate validation to see that
2481 the CA setting in each certificate on the chain is correct. As a
2482 side effect always do the following basic checks on extensions,
2483 not just when there's an associated purpose to the check:
2485 - if there is an unhandled critical extension (unless the user
2486 has chosen to ignore this fault)
2487 - if the path length has been exceeded (if one is set at all)
2488 - that certain extensions fit the associated purpose (if one has
2492 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2494 *) Avoid a race condition when CRLs are checked in a multi threaded
2495 environment. This would happen due to the reordering of the revoked
2496 entries during signature checking and serial number lookup. Now the
2497 encoding is cached and the serial number sort performed under a lock.
2498 Add new STACK function sk_is_sorted().
2501 *) Add Delta CRL to the extension code.
2504 *) Various fixes to s3_pkt.c so alerts are sent properly.
2505 [David Holmes <d.holmes@f5.com>]
2507 *) Reduce the chances of duplicate issuer name and serial numbers (in
2508 violation of RFC3280) using the OpenSSL certificate creation utilities.
2509 This is done by creating a random 64 bit value for the initial serial
2510 number when a serial number file is created or when a self signed
2511 certificate is created using 'openssl req -x509'. The initial serial
2512 number file is created using 'openssl x509 -next_serial' in CA.pl
2513 rather than being initialized to 1.
2516 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2518 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2519 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2520 [Joe Orton, Steve Henson]
2522 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2524 [Joe Orton, Steve Henson]
2526 *) Make it possible to have multiple active certificates with the same
2527 subject in the CA index file. This is done only if the keyword
2528 'unique_subject' is set to 'no' in the main CA section (default
2529 if 'CA_default') of the configuration file. The value is saved
2530 with the database itself in a separate index attribute file,
2531 named like the index file with '.attr' appended to the name.
2534 *) X509 verify fixes. Disable broken certificate workarounds when
2535 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2536 keyUsage extension present. Don't accept CRLs with unhandled critical
2537 extensions: since verify currently doesn't process CRL extensions this
2538 rejects a CRL with *any* critical extensions. Add new verify error codes
2542 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2543 A clarification of RFC2560 will require the use of OCTET STRINGs and
2544 some implementations cannot handle the current raw format. Since OpenSSL
2545 copies and compares OCSP nonces as opaque blobs without any attempt at
2546 parsing them this should not create any compatibility issues.
2549 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2550 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2551 this HMAC (and other) operations are several times slower than OpenSSL
2555 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2556 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2558 *) Use the correct content when signing type "other".
2561 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2563 *) Fix various bugs revealed by running the NISCC test suite:
2565 Stop out of bounds reads in the ASN1 code when presented with
2566 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2568 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2570 If verify callback ignores invalid public key errors don't try to check
2571 certificate signature with the NULL public key.
2575 *) New -ignore_err option in ocsp application to stop the server
2576 exiting on the first error in a request.
2579 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2580 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2584 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2585 extra data after the compression methods not only for TLS 1.0
2586 but also for SSL 3.0 (as required by the specification).
2587 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2589 *) Change X509_certificate_type() to mark the key as exported/exportable
2590 when it's 512 *bits* long, not 512 bytes.
2593 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2594 blocks during encryption.
2597 *) Various fixes to base64 BIO and non blocking I/O. On write
2598 flushes were not handled properly if the BIO retried. On read
2599 data was not being buffered properly and had various logic bugs.
2600 This also affects blocking I/O when the data being decoded is a
2604 *) Various S/MIME bugfixes and compatibility changes:
2605 output correct application/pkcs7 MIME type if
2606 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2607 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2608 of files as .eml work). Correctly handle very long lines in MIME
2612 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2614 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2615 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2616 a protocol version number mismatch like a decryption error
2617 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2620 *) Turn on RSA blinding by default in the default implementation
2621 to avoid a timing attack. Applications that don't want it can call
2622 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2623 They would be ill-advised to do so in most cases.
2624 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2626 *) Change RSA blinding code so that it works when the PRNG is not
2627 seeded (in this case, the secret RSA exponent is abused as
2628 an unpredictable seed -- if it is not unpredictable, there
2629 is no point in blinding anyway). Make RSA blinding thread-safe
2630 by remembering the creator's thread ID in rsa->blinding and
2631 having all other threads use local one-time blinding factors
2632 (this requires more computation than sharing rsa->blinding, but
2633 avoids excessive locking; and if an RSA object is not shared
2634 between threads, blinding will still be very fast).
2637 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2638 ENGINE as defaults for all supported algorithms irrespective of
2639 the 'flags' parameter. 'flags' is now honoured, so applications
2640 should make sure they are passing it correctly.
2643 *) Target "mingw" now allows native Windows code to be generated in
2644 the Cygwin environment as well as with the MinGW compiler.
2647 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2649 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2650 via timing by performing a MAC computation even if incorrrect
2651 block cipher padding has been found. This is a countermeasure
2652 against active attacks where the attacker has to distinguish
2653 between bad padding and a MAC verification error. (CVE-2003-0078)
2655 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2656 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2657 Martin Vuagnoux (EPFL, Ilion)]
2659 *) Make the no-err option work as intended. The intention with no-err
2660 is not to have the whole error stack handling routines removed from
2661 libcrypto, it's only intended to remove all the function name and
2662 reason texts, thereby removing some of the footprint that may not
2663 be interesting if those errors aren't displayed anyway.
2665 NOTE: it's still possible for any application or module to have it's
2666 own set of error texts inserted. The routines are there, just not
2667 used by default when no-err is given.
2670 *) Add support for FreeBSD on IA64.
2671 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2673 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2674 Kerberos function mit_des_cbc_cksum(). Before this change,
2675 the value returned by DES_cbc_cksum() was like the one from
2676 mit_des_cbc_cksum(), except the bytes were swapped.
2677 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2679 *) Allow an application to disable the automatic SSL chain building.
2680 Before this a rather primitive chain build was always performed in
2681 ssl3_output_cert_chain(): an application had no way to send the
2682 correct chain if the automatic operation produced an incorrect result.
2684 Now the chain builder is disabled if either:
2686 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2688 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2690 The reasoning behind this is that an application would not want the
2691 auto chain building to take place if extra chain certificates are
2692 present and it might also want a means of sending no additional
2693 certificates (for example the chain has two certificates and the
2697 *) Add the possibility to build without the ENGINE framework.
2698 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2700 *) Under Win32 gmtime() can return NULL: check return value in
2701 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2704 *) DSA routines: under certain error conditions uninitialized BN objects
2705 could be freed. Solution: make sure initialization is performed early
2706 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2707 Nils Larsch <nla@trustcenter.de> via PR#459)
2710 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2711 checked on reconnect on the client side, therefore session resumption
2712 could still fail with a "ssl session id is different" error. This
2713 behaviour is masked when SSL_OP_ALL is used due to
2714 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2715 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2716 followup to PR #377.
2719 *) IA-32 assembler support enhancements: unified ELF targets, support
2720 for SCO/Caldera platforms, fix for Cygwin shared build.
2723 *) Add support for FreeBSD on sparc64. As a consequence, support for
2724 FreeBSD on non-x86 processors is separate from x86 processors on
2725 the config script, much like the NetBSD support.
2726 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2728 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2730 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2733 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2734 code (06) was taken as the first octet of the session ID and the last
2735 octet was ignored consequently. As a result SSLv2 client side session
2736 caching could not have worked due to the session ID mismatch between
2738 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2742 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2743 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2747 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2748 seems that in spite of existing for more than a year, many application
2749 author have done nothing to provide the necessary callbacks, which
2750 means that this particular engine will not work properly anywhere.
2751 This is a very unfortunate situation which forces us, in the name
2752 of usability, to give the hw_ncipher.c a static lock, which is part
2754 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2755 appear in 0.9.8 or later. We EXPECT application authors to have
2756 dealt properly with this when 0.9.8 is released (unless we actually
2757 make such changes in the libcrypto locking code that changes will
2758 have to be made anyway).
2761 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2762 octets have been read, EOF or an error occurs. Without this change
2763 some truncated ASN1 structures will not produce an error.
2766 *) Disable Heimdal support, since it hasn't been fully implemented.
2767 Still give the possibility to force the use of Heimdal, but with
2768 warnings and a request that patches get sent to openssl-dev.
2771 *) Add the VC-CE target, introduce the WINCE sysname, and add
2772 INSTALL.WCE and appropriate conditionals to make it build.
2773 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2775 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2776 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2777 edit numbers of the version.
2778 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2780 *) Introduce safe string copy and catenation functions
2781 (BUF_strlcpy() and BUF_strlcat()).
2782 [Ben Laurie (CHATS) and Richard Levitte]
2784 *) Avoid using fixed-size buffers for one-line DNs.
2785 [Ben Laurie (CHATS)]
2787 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2788 resizing buffers containing secrets, and use where appropriate.
2789 [Ben Laurie (CHATS)]
2791 *) Avoid using fixed size buffers for configuration file location.
2792 [Ben Laurie (CHATS)]
2794 *) Avoid filename truncation for various CA files.
2795 [Ben Laurie (CHATS)]
2797 *) Use sizeof in preference to magic numbers.
2798 [Ben Laurie (CHATS)]
2800 *) Avoid filename truncation in cert requests.
2801 [Ben Laurie (CHATS)]
2803 *) Add assertions to check for (supposedly impossible) buffer
2805 [Ben Laurie (CHATS)]
2807 *) Don't cache truncated DNS entries in the local cache (this could
2808 potentially lead to a spoofing attack).
2809 [Ben Laurie (CHATS)]
2811 *) Fix various buffers to be large enough for hex/decimal
2812 representations in a platform independent manner.
2813 [Ben Laurie (CHATS)]
2815 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2816 resizing buffers containing secrets, and use where appropriate.
2817 [Ben Laurie (CHATS)]
2819 *) Add BIO_indent() to avoid much slightly worrying code to do
2821 [Ben Laurie (CHATS)]
2823 *) Convert sprintf()/BIO_puts() to BIO_printf().
2824 [Ben Laurie (CHATS)]
2826 *) buffer_gets() could terminate with the buffer only half
2828 [Ben Laurie (CHATS)]
2830 *) Add assertions to prevent user-supplied crypto functions from
2831 overflowing internal buffers by having large block sizes, etc.
2832 [Ben Laurie (CHATS)]
2834 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2836 [Ben Laurie (CHATS)]
2838 *) Eliminate unused copy of key in RC4.
2839 [Ben Laurie (CHATS)]
2841 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2842 [Ben Laurie (CHATS)]
2844 *) Fix off-by-one error in EGD path.
2845 [Ben Laurie (CHATS)]
2847 *) If RANDFILE path is too long, ignore instead of truncating.
2848 [Ben Laurie (CHATS)]
2850 *) Eliminate unused and incorrectly sized X.509 structure
2852 [Ben Laurie (CHATS)]
2854 *) Eliminate unused and dangerous function knumber().
2855 [Ben Laurie (CHATS)]
2857 *) Eliminate unused and dangerous structure, KSSL_ERR.
2858 [Ben Laurie (CHATS)]
2860 *) Protect against overlong session ID context length in an encoded
2861 session object. Since these are local, this does not appear to be
2863 [Ben Laurie (CHATS)]
2865 *) Change from security patch (see 0.9.6e below) that did not affect
2866 the 0.9.6 release series:
2868 Remote buffer overflow in SSL3 protocol - an attacker could
2869 supply an oversized master key in Kerberos-enabled versions.
2871 [Ben Laurie (CHATS)]
2873 *) Change the SSL kerb5 codes to match RFC 2712.
2876 *) Make -nameopt work fully for req and add -reqopt switch.
2877 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2879 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2880 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2882 *) Make sure tests can be performed even if the corresponding algorithms
2883 have been removed entirely. This was also the last step to make
2884 OpenSSL compilable with DJGPP under all reasonable conditions.
2885 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2887 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2888 to allow version independent disabling of normally unselected ciphers,
2889 which may be activated as a side-effect of selecting a single cipher.
2891 (E.g., cipher list string "RSA" enables ciphersuites that are left
2892 out of "ALL" because they do not provide symmetric encryption.
2893 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2894 [Lutz Jaenicke, Bodo Moeller]
2896 *) Add appropriate support for separate platform-dependent build
2897 directories. The recommended way to make a platform-dependent
2898 build directory is the following (tested on Linux), maybe with
2901 # Place yourself outside of the OpenSSL source tree. In
2902 # this example, the environment variable OPENSSL_SOURCE
2903 # is assumed to contain the absolute OpenSSL source directory.
2904 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2905 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2906 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2907 mkdir -p `dirname $F`
2908 ln -s $OPENSSL_SOURCE/$F $F
2911 To be absolutely sure not to disturb the source tree, a "make clean"
2912 is a good thing. If it isn't successfull, don't worry about it,
2913 it probably means the source directory is very clean.
2916 *) Make sure any ENGINE control commands make local copies of string
2917 pointers passed to them whenever necessary. Otherwise it is possible
2918 the caller may have overwritten (or deallocated) the original string
2919 data when a later ENGINE operation tries to use the stored values.
2920 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2922 *) Improve diagnostics in file reading and command-line digests.
2923 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2925 *) Add AES modes CFB and OFB to the object database. Correct an
2926 error in AES-CFB decryption.
2929 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2930 allows existing EVP_CIPHER_CTX structures to be reused after
2931 calling EVP_*Final(). This behaviour is used by encryption
2932 BIOs and some applications. This has the side effect that
2933 applications must explicitly clean up cipher contexts with
2934 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2937 *) Check the values of dna and dnb in bn_mul_recursive before calling
2938 bn_mul_comba (a non zero value means the a or b arrays do not contain
2939 n2 elements) and fallback to bn_mul_normal if either is not zero.
2942 *) Fix escaping of non-ASCII characters when using the -subj option
2943 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2946 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2947 form for "surname", serialNumber has no short form.
2948 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2949 therefore remove "mail" short name for "internet 7".
2950 The OID for unique identifiers in X509 certificates is
2951 x500UniqueIdentifier, not uniqueIdentifier.
2952 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2955 *) Add an "init" command to the ENGINE config module and auto initialize
2956 ENGINEs. Without any "init" command the ENGINE will be initialized
2957 after all ctrl commands have been executed on it. If init=1 the
2958 ENGINE is initailized at that point (ctrls before that point are run
2959 on the uninitialized ENGINE and after on the initialized one). If
2960 init=0 then the ENGINE will not be iniatialized at all.
2963 *) Fix the 'app_verify_callback' interface so that the user-defined
2964 argument is actually passed to the callback: In the
2965 SSL_CTX_set_cert_verify_callback() prototype, the callback
2966 declaration has been changed from
2969 int (*cb)(X509_STORE_CTX *,void *);
2970 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2971 i=s->ctx->app_verify_callback(&ctx)
2972 has been changed into
2973 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2975 To update applications using SSL_CTX_set_cert_verify_callback(),
2976 a dummy argument can be added to their callback functions.
2977 [D. K. Smetters <smetters@parc.xerox.com>]
2979 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2980 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2982 *) Add and OPENSSL_LOAD_CONF define which will cause
2983 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2984 This allows older applications to transparently support certain
2985 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2986 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2987 load the config file and OPENSSL_add_all_algorithms_conf() which will
2988 always load it have also been added.
2991 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2992 Adjust NIDs and EVP layer.
2993 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2995 *) Config modules support in openssl utility.
2997 Most commands now load modules from the config file,
2998 though in a few (such as version) this isn't done
2999 because it couldn't be used for anything.
3001 In the case of ca and req the config file used is
3002 the same as the utility itself: that is the -config
3003 command line option can be used to specify an
3007 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3008 use "openssl_conf" if filename is NULL use default openssl config file.
3011 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3012 config section name. Add a new flag to tolerate a missing config file
3013 and move code to CONF_modules_load_file().
3016 *) Support for crypto accelerator cards from Accelerated Encryption
3017 Processing, www.aep.ie. (Use engine 'aep')
3018 The support was copied from 0.9.6c [engine] and adapted/corrected
3019 to work with the new engine framework.
3020 [AEP Inc. and Richard Levitte]
3022 *) Support for SureWare crypto accelerator cards from Baltimore
3023 Technologies. (Use engine 'sureware')
3024 The support was copied from 0.9.6c [engine] and adapted
3025 to work with the new engine framework.
3028 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3029 make the newer ENGINE framework commands for the CHIL engine work.
3030 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3032 *) Make it possible to produce shared libraries on ReliantUNIX.
3033 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3035 *) Add the configuration target debug-linux-ppro.
3036 Make 'openssl rsa' use the general key loading routines
3037 implemented in apps.c, and make those routines able to
3038 handle the key format FORMAT_NETSCAPE and the variant
3040 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3042 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3043 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3045 *) Add -keyform to rsautl, and document -engine.
3046 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3048 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3049 BIO_R_NO_SUCH_FILE error code rather than the generic
3050 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3053 *) Add new functions
3055 ERR_peek_last_error_line
3056 ERR_peek_last_error_line_data.
3057 These are similar to
3060 ERR_peek_error_line_data,
3061 but report on the latest error recorded rather than the first one
3062 still in the error queue.
3063 [Ben Laurie, Bodo Moeller]
3065 *) default_algorithms option in ENGINE config module. This allows things
3067 default_algorithms = ALL
3068 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3071 *) Prelminary ENGINE config module.
3074 *) New experimental application configuration code.
3077 *) Change the AES code to follow the same name structure as all other
3078 symmetric ciphers, and behave the same way. Move everything to
3079 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3080 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3082 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3083 [Ben Laurie and Theo de Raadt]
3085 *) Add option to output public keys in req command.
3086 [Massimiliano Pala madwolf@openca.org]
3088 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3089 (up to about 10% better than before for P-192 and P-224).
3092 *) New functions/macros
3094 SSL_CTX_set_msg_callback(ctx, cb)
3095 SSL_CTX_set_msg_callback_arg(ctx, arg)
3096 SSL_set_msg_callback(ssl, cb)
3097 SSL_set_msg_callback_arg(ssl, arg)
3099 to request calling a callback function
3101 void cb(int write_p, int version, int content_type,
3102 const void *buf, size_t len, SSL *ssl, void *arg)
3104 whenever a protocol message has been completely received
3105 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3106 protocol version according to which the SSL library interprets
3107 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3108 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3109 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3110 specification (change_cipher_spec(20), alert(21), handshake(22)).
3111 'buf' and 'len' point to the actual message, 'ssl' to the
3112 SSL object, and 'arg' is the application-defined value set by
3113 SSL[_CTX]_set_msg_callback_arg().
3115 'openssl s_client' and 'openssl s_server' have new '-msg' options
3116 to enable a callback that displays all protocol messages.
3119 *) Change the shared library support so shared libraries are built as
3120 soon as the corresponding static library is finished, and thereby get
3121 openssl and the test programs linked against the shared library.
3122 This still only happens when the keyword "shard" has been given to
3123 the configuration scripts.
3125 NOTE: shared library support is still an experimental thing, and
3126 backward binary compatibility is still not guaranteed.
3127 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3129 *) Add support for Subject Information Access extension.
3130 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3132 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3133 additional bytes when new memory had to be allocated, not just
3134 when reusing an existing buffer.
3137 *) New command line and configuration option 'utf8' for the req command.
3138 This allows field values to be specified as UTF8 strings.
3141 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3142 runs for the former and machine-readable output for the latter.
3145 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3146 of the e-mail address in the DN (i.e., it will go into a certificate
3147 extension only). The new configuration file option 'email_in_dn = no'
3148 has the same effect.
3149 [Massimiliano Pala madwolf@openca.org]
3151 *) Change all functions with names starting with des_ to be starting
3152 with DES_ instead. Add wrappers that are compatible with libdes,
3153 but are named _ossl_old_des_*. Finally, add macros that map the
3154 des_* symbols to the corresponding _ossl_old_des_* if libdes
3155 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3156 desired, the des_* symbols will be mapped to DES_*, with one
3159 Since we provide two compatibility mappings, the user needs to
3160 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3161 compatibility is desired. The default (i.e., when that macro
3162 isn't defined) is OpenSSL 0.9.6c compatibility.
3164 There are also macros that enable and disable the support of old
3165 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3166 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3167 are defined, the default will apply: to support the old des routines.
3169 In either case, one must include openssl/des.h to get the correct
3170 definitions. Do not try to just include openssl/des_old.h, that
3173 NOTE: This is a major break of an old API into a new one. Software
3174 authors are encouraged to switch to the DES_ style functions. Some
3175 time in the future, des_old.h and the libdes compatibility functions
3176 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3177 default), and then completely removed.
3180 *) Test for certificates which contain unsupported critical extensions.
3181 If such a certificate is found during a verify operation it is
3182 rejected by default: this behaviour can be overridden by either
3183 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3184 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3185 X509_supported_extension() has also been added which returns 1 if a
3186 particular extension is supported.
3189 *) Modify the behaviour of EVP cipher functions in similar way to digests
3190 to retain compatibility with existing code.
3193 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3194 compatibility with existing code. In particular the 'ctx' parameter does
3195 not have to be to be initialized before the call to EVP_DigestInit() and
3196 it is tidied up after a call to EVP_DigestFinal(). New function
3197 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3198 EVP_MD_CTX_copy() changed to not require the destination to be
3199 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3200 requires the destination to be valid.
3202 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3203 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3206 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3207 so that complete 'Handshake' protocol structures are kept in memory
3208 instead of overwriting 'msg_type' and 'length' with 'body' data.
3211 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3212 [Massimo Santin via Richard Levitte]
3214 *) Major restructuring to the underlying ENGINE code. This includes
3215 reduction of linker bloat, separation of pure "ENGINE" manipulation
3216 (initialisation, etc) from functionality dealing with implementations
3217 of specific crypto iterfaces. This change also introduces integrated
3218 support for symmetric ciphers and digest implementations - so ENGINEs
3219 can now accelerate these by providing EVP_CIPHER and EVP_MD
3220 implementations of their own. This is detailed in crypto/engine/README
3221 as it couldn't be adequately described here. However, there are a few
3222 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3223 were changed in the original introduction of ENGINE code have now
3224 reverted back - the hooking from this code to ENGINE is now a good
3225 deal more passive and at run-time, operations deal directly with
3226 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3227 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3228 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3229 they were not being used by the framework as there is no concept of a
3230 BIGNUM_METHOD and they could not be generalised to the new
3231 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3232 ENGINE_cpy() has been removed as it cannot be consistently defined in
3236 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3239 *) Change mkdef.pl to sort symbols that get the same entry number,
3240 and make sure the automatically generated functions ERR_load_*
3241 become part of libeay.num as well.
3244 *) New function SSL_renegotiate_pending(). This returns true once
3245 renegotiation has been requested (either SSL_renegotiate() call
3246 or HelloRequest/ClientHello receveived from the peer) and becomes
3247 false once a handshake has been completed.
3248 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3249 sends a HelloRequest, but does not ensure that a handshake takes
3250 place. SSL_renegotiate_pending() is useful for checking if the
3251 client has followed the request.)
3254 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3255 By default, clients may request session resumption even during
3256 renegotiation (if session ID contexts permit); with this option,
3257 session resumption is possible only in the first handshake.
3259 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3260 more bits available for options that should not be part of
3261 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3264 *) Add some demos for certificate and certificate request creation.
3267 *) Make maximum certificate chain size accepted from the peer application
3268 settable (SSL*_get/set_max_cert_list()), as proposed by
3269 "Douglas E. Engert" <deengert@anl.gov>.
3272 *) Add support for shared libraries for Unixware-7
3273 (Boyd Lynn Gerber <gerberb@zenez.com>).
3276 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3277 be done prior to destruction. Use this to unload error strings from
3278 ENGINEs that load their own error strings. NB: This adds two new API
3279 functions to "get" and "set" this destroy handler in an ENGINE.
3282 *) Alter all existing ENGINE implementations (except "openssl" and
3283 "openbsd") to dynamically instantiate their own error strings. This
3284 makes them more flexible to be built both as statically-linked ENGINEs
3285 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3286 Also, add stub code to each that makes building them as self-contained
3287 shared-libraries easier (see README.ENGINE).
3290 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3291 implementations into applications that are completely implemented in
3292 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3293 commands that can be used to configure what shared-library to load and
3294 to control aspects of the way it is handled. Also, made an update to
3295 the README.ENGINE file that brings its information up-to-date and
3296 provides some information and instructions on the "dynamic" ENGINE
3297 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3300 *) Make it possible to unload ranges of ERR strings with a new
3301 "ERR_unload_strings" function.
3304 *) Add a copy() function to EVP_MD.
3307 *) Make EVP_MD routines take a context pointer instead of just the
3308 md_data void pointer.
3311 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3312 that the digest can only process a single chunk of data
3313 (typically because it is provided by a piece of
3314 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3315 is only going to provide a single chunk of data, and hence the
3316 framework needn't accumulate the data for oneshot drivers.
3319 *) As with "ERR", make it possible to replace the underlying "ex_data"
3320 functions. This change also alters the storage and management of global
3321 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3322 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3323 index counters. The API functions that use this state have been changed
3324 to take a "class_index" rather than pointers to the class's local STACK
3325 and counter, and there is now an API function to dynamically create new
3326 classes. This centralisation allows us to (a) plug a lot of the
3327 thread-safety problems that existed, and (b) makes it possible to clean
3328 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3329 such data would previously have always leaked in application code and
3330 workarounds were in place to make the memory debugging turn a blind eye
3331 to it. Application code that doesn't use this new function will still
3332 leak as before, but their memory debugging output will announce it now
3333 rather than letting it slide.
3335 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3336 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3337 has a return value to indicate success or failure.
3340 *) Make it possible to replace the underlying "ERR" functions such that the
3341 global state (2 LHASH tables and 2 locks) is only used by the "default"
3342 implementation. This change also adds two functions to "get" and "set"
3343 the implementation prior to it being automatically set the first time
3344 any other ERR function takes place. Ie. an application can call "get",
3345 pass the return value to a module it has just loaded, and that module
3346 can call its own "set" function using that value. This means the
3347 module's "ERR" operations will use (and modify) the error state in the
3348 application and not in its own statically linked copy of OpenSSL code.
3351 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3352 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3353 the operation, and provides a more encapsulated way for external code
3354 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3355 to use these functions rather than manually incrementing the counts.
3357 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3360 *) Add EVP test program.
3363 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3366 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3367 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3368 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3369 These allow a CRL to be built without having to access X509_CRL fields
3370 directly. Modify 'ca' application to use new functions.
3373 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3374 bug workarounds. Rollback attack detection is a security feature.
3375 The problem will only arise on OpenSSL servers when TLSv1 is not
3376 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3377 Software authors not wanting to support TLSv1 will have special reasons
3378 for their choice and can explicitly enable this option.
3379 [Bodo Moeller, Lutz Jaenicke]
3381 *) Rationalise EVP so it can be extended: don't include a union of
3382 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3383 (similar to those existing for EVP_CIPHER_CTX).
3388 EVP_MD_CTX_init(&md); /* new function call */
3389 EVP_DigestInit(&md, EVP_sha1());
3390 EVP_DigestUpdate(&md, in, len);
3391 EVP_DigestFinal(&md, out, NULL);
3392 EVP_MD_CTX_cleanup(&md); /* new function call */
3396 *) Make DES key schedule conform to the usual scheme, as well as
3397 correcting its structure. This means that calls to DES functions
3398 now have to pass a pointer to a des_key_schedule instead of a
3399 plain des_key_schedule (which was actually always a pointer
3402 des_key_schedule ks;
3404 des_set_key_checked(..., &ks);
3405 des_ncbc_encrypt(..., &ks, ...);
3407 (Note that a later change renames 'des_...' into 'DES_...'.)
3410 *) Initial reduction of linker bloat: the use of some functions, such as
3411 PEM causes large amounts of unused functions to be linked in due to
3412 poor organisation. For example pem_all.c contains every PEM function
3413 which has a knock on effect of linking in large amounts of (unused)
3414 ASN1 code. Grouping together similar functions and splitting unrelated
3415 functions prevents this.
3418 *) Cleanup of EVP macros.
3421 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3422 correct _ecb suffix.
3425 *) Add initial OCSP responder support to ocsp application. The
3426 revocation information is handled using the text based index
3427 use by the ca application. The responder can either handle
3428 requests generated internally, supplied in files (for example
3429 via a CGI script) or using an internal minimal server.
3432 *) Add configuration choices to get zlib compression for TLS.
3435 *) Changes to Kerberos SSL for RFC 2712 compliance:
3436 1. Implemented real KerberosWrapper, instead of just using
3437 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3438 2. Implemented optional authenticator field of KerberosWrapper.
3440 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3441 and authenticator structs; see crypto/krb5/.
3443 Generalized Kerberos calls to support multiple Kerberos libraries.
3444 [Vern Staats <staatsvr@asc.hpc.mil>,
3445 Jeffrey Altman <jaltman@columbia.edu>
3446 via Richard Levitte]
3448 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3449 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3450 values for each of the key sizes rather than having just
3451 parameters (and 'speed' generating keys each time).
3454 *) Speed up EVP routines.
3457 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3458 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3459 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3460 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3462 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3463 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3464 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3467 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3469 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3472 *) Added the OS2-EMX target.
3473 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3475 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3476 to support NCONF routines in extension code. New function CONF_set_nconf()
3477 to allow functions which take an NCONF to also handle the old LHASH
3478 structure: this means that the old CONF compatible routines can be
3479 retained (in particular wrt extensions) without having to duplicate the
3480 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3483 *) Enhance the general user interface with mechanisms for inner control
3484 and with possibilities to have yes/no kind of prompts.
3487 *) Change all calls to low level digest routines in the library and
3488 applications to use EVP. Add missing calls to HMAC_cleanup() and
3489 don't assume HMAC_CTX can be copied using memcpy().
3490 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3492 *) Add the possibility to control engines through control names but with
3493 arbitrary arguments instead of just a string.
3494 Change the key loaders to take a UI_METHOD instead of a callback
3495 function pointer. NOTE: this breaks binary compatibility with earlier
3496 versions of OpenSSL [engine].
3497 Adapt the nCipher code for these new conditions and add a card insertion
3501 *) Enhance the general user interface with mechanisms to better support
3502 dialog box interfaces, application-defined prompts, the possibility
3503 to use defaults (for example default passwords from somewhere else)
3504 and interrupts/cancellations.
3507 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3508 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3511 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3512 tidy up some unnecessarily weird code in 'sk_new()').
3513 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3515 *) Change the key loading routines for ENGINEs to use the same kind
3516 callback (pem_password_cb) as all other routines that need this
3520 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3521 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3522 than this minimum value is recommended.
3525 *) New random seeder for OpenVMS, using the system process statistics
3526 that are easily reachable.
3529 *) Windows apparently can't transparently handle global
3530 variables defined in DLLs. Initialisations such as:
3532 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3534 wont compile. This is used by the any applications that need to
3535 declare their own ASN1 modules. This was fixed by adding the option
3536 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3537 needed for static libraries under Win32.
3540 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3541 setting of purpose and trust fields. New X509_STORE trust and
3542 purpose functions and tidy up setting in other SSL functions.
3545 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3546 structure. These are inherited by X509_STORE_CTX when it is
3547 initialised. This allows various defaults to be set in the
3548 X509_STORE structure (such as flags for CRL checking and custom
3549 purpose or trust settings) for functions which only use X509_STORE_CTX
3550 internally such as S/MIME.
3552 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3553 trust settings if they are not set in X509_STORE. This allows X509_STORE
3554 purposes and trust (in S/MIME for example) to override any set by default.
3556 Add command line options for CRL checking to smime, s_client and s_server
3560 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3561 are set then the CRL is looked up in the X509_STORE structure and
3562 its validity and signature checked, then if the certificate is found
3563 in the CRL the verify fails with a revoked error.
3565 Various new CRL related callbacks added to X509_STORE_CTX structure.
3567 Command line options added to 'verify' application to support this.
3569 This needs some additional work, such as being able to handle multiple
3570 CRLs with different times, extension based lookup (rather than just
3571 by subject name) and ultimately more complete V2 CRL extension
3575 *) Add a general user interface API (crypto/ui/). This is designed
3576 to replace things like des_read_password and friends (backward
3577 compatibility functions using this new API are provided).
3578 The purpose is to remove prompting functions from the DES code
3579 section as well as provide for prompting through dialog boxes in
3580 a window system and the like.
3583 *) Add "ex_data" support to ENGINE so implementations can add state at a
3584 per-structure level rather than having to store it globally.
3587 *) Make it possible for ENGINE structures to be copied when retrieved by
3588 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3589 This causes the "original" ENGINE structure to act like a template,
3590 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3591 operational state can be localised to each ENGINE structure, despite the
3592 fact they all share the same "methods". New ENGINE structures returned in
3593 this case have no functional references and the return value is the single
3594 structural reference. This matches the single structural reference returned
3595 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3599 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3600 needs to match any other type at all we need to manually clear the
3604 *) Changes to the "openssl engine" utility to include;
3605 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3606 about an ENGINE's available control commands.
3607 - executing control commands from command line arguments using the
3608 '-pre' and '-post' switches. '-post' is only used if '-t' is
3609 specified and the ENGINE is successfully initialised. The syntax for
3610 the individual commands are colon-separated, for example;
3611 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3614 *) New dynamic control command support for ENGINEs. ENGINEs can now
3615 declare their own commands (numbers), names (strings), descriptions,
3616 and input types for run-time discovery by calling applications. A
3617 subset of these commands are implicitly classed as "executable"
3618 depending on their input type, and only these can be invoked through
3619 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3620 can be based on user input, config files, etc). The distinction is
3621 that "executable" commands cannot return anything other than a boolean
3622 result and can only support numeric or string input, whereas some
3623 discoverable commands may only be for direct use through
3624 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3625 pointers, or other custom uses. The "executable" commands are to
3626 support parameterisations of ENGINE behaviour that can be
3627 unambiguously defined by ENGINEs and used consistently across any
3628 OpenSSL-based application. Commands have been added to all the
3629 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3630 control over shared-library paths without source code alterations.
3633 *) Changed all ENGINE implementations to dynamically allocate their
3634 ENGINEs rather than declaring them statically. Apart from this being
3635 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3636 this also allows the implementations to compile without using the
3637 internal engine_int.h header.
3640 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3641 'const' value. Any code that should be able to modify a RAND_METHOD
3642 should already have non-const pointers to it (ie. they should only
3643 modify their own ones).
3646 *) Made a variety of little tweaks to the ENGINE code.
3647 - "atalla" and "ubsec" string definitions were moved from header files
3648 to C code. "nuron" string definitions were placed in variables
3649 rather than hard-coded - allowing parameterisation of these values
3650 later on via ctrl() commands.
3651 - Removed unused "#if 0"'d code.
3652 - Fixed engine list iteration code so it uses ENGINE_free() to release
3653 structural references.
3654 - Constified the RAND_METHOD element of ENGINE structures.
3655 - Constified various get/set functions as appropriate and added
3656 missing functions (including a catch-all ENGINE_cpy that duplicates
3657 all ENGINE values onto a new ENGINE except reference counts/state).
3658 - Removed NULL parameter checks in get/set functions. Setting a method
3659 or function to NULL is a way of cancelling out a previously set
3660 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3661 and doesn't justify the extra error symbols and code.
3662 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3663 flags from engine_int.h to engine.h.
3664 - Changed prototypes for ENGINE handler functions (init(), finish(),
3665 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3668 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3669 to the algorithm using long division. The binary algorithm can be
3670 used only if the modulus is odd. On 32-bit systems, it is faster
3671 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3672 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3673 up to 450 bits. In 64-bit environments, the binary algorithm
3674 appears to be advantageous for much longer moduli; here we use it
3675 for moduli up to 2048 bits.
3678 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3679 could not support the combine flag in choice fields.
3682 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3683 extensions from a certificate request to the certificate.
3686 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3687 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3688 file: this allows the display of the certificate about to be
3689 signed to be customised, to allow certain fields to be included
3690 or excluded and extension details. The old system didn't display
3691 multicharacter strings properly, omitted fields not in the policy
3692 and couldn't display additional details such as extensions.
3695 *) Function EC_POINTs_mul for multiple scalar multiplication
3696 of an arbitrary number of elliptic curve points
3697 \sum scalars[i]*points[i],
3698 optionally including the generator defined for the EC_GROUP:
3699 scalar*generator + \sum scalars[i]*points[i].
3701 EC_POINT_mul is a simple wrapper function for the typical case
3702 that the point list has just one item (besides the optional
3706 *) First EC_METHODs for curves over GF(p):
3708 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3709 operations and provides various method functions that can also
3710 operate with faster implementations of modular arithmetic.
3712 EC_GFp_mont_method() reuses most functions that are part of
3713 EC_GFp_simple_method, but uses Montgomery arithmetic.
3715 [Bodo Moeller; point addition and point doubling
3716 implementation directly derived from source code provided by
3717 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3719 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3720 crypto/ec/ec_lib.c):
3722 Curves are EC_GROUP objects (with an optional group generator)
3723 based on EC_METHODs that are built into the library.
3725 Points are EC_POINT objects based on EC_GROUP objects.
3727 Most of the framework would be able to handle curves over arbitrary
3728 finite fields, but as there are no obvious types for fields other
3729 than GF(p), some functions are limited to that for now.
3732 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3733 that the file contains a complete HTTP response.
3736 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3737 change the def and num file printf format specifier from "%-40sXXX"
3738 to "%-39s XXX". The latter will always guarantee a space after the
3739 field while the former will cause them to run together if the field
3740 is 40 of more characters long.
3743 *) Constify the cipher and digest 'method' functions and structures
3744 and modify related functions to take constant EVP_MD and EVP_CIPHER
3748 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3749 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3752 *) Modify EVP_Digest*() routines so they now return values. Although the
3753 internal software routines can never fail additional hardware versions
3757 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3759 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3760 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3763 ERR_R_NESTED_ASN1_ERROR
3765 ERR_R_MISSING_ASN1_EOS
3766 were 4 .. 9, conflicting with
3767 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3769 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3770 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3772 Add new error code 'ERR_R_INTERNAL_ERROR'.
3775 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3779 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3780 sets the subject name for a new request or supersedes the
3781 subject name in a given request. Formats that can be parsed are
3782 'CN=Some Name, OU=myOU, C=IT'
3784 'CN=Some Name/OU=myOU/C=IT'.
3786 Add options '-batch' and '-verbose' to 'openssl req'.
3787 [Massimiliano Pala <madwolf@hackmasters.net>]
3789 *) Introduce the possibility to access global variables through
3790 functions on platform were that's the best way to handle exporting
3791 global variables in shared libraries. To enable this functionality,
3792 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3793 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3794 is normally done by Configure or something similar).
3796 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3797 in the source file (foo.c) like this:
3799 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3800 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3802 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3803 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3805 OPENSSL_DECLARE_GLOBAL(int,foo);
3806 #define foo OPENSSL_GLOBAL_REF(foo)
3807 OPENSSL_DECLARE_GLOBAL(double,bar);
3808 #define bar OPENSSL_GLOBAL_REF(bar)
3810 The #defines are very important, and therefore so is including the
3811 header file everywhere where the defined globals are used.
3813 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3814 of ASN.1 items, but that structure is a bit different.
3816 The largest change is in util/mkdef.pl which has been enhanced with
3817 better and easier to understand logic to choose which symbols should
3818 go into the Windows .def files as well as a number of fixes and code
3819 cleanup (among others, algorithm keywords are now sorted
3820 lexicographically to avoid constant rewrites).
3823 *) In BN_div() keep a copy of the sign of 'num' before writing the
3824 result to 'rm' because if rm==num the value will be overwritten
3825 and produce the wrong result if 'num' is negative: this caused
3826 problems with BN_mod() and BN_nnmod().
3829 *) Function OCSP_request_verify(). This checks the signature on an
3830 OCSP request and verifies the signer certificate. The signer
3831 certificate is just checked for a generic purpose and OCSP request
3835 *) Add OCSP_check_validity() function to check the validity of OCSP
3836 responses. OCSP responses are prepared in real time and may only
3837 be a few seconds old. Simply checking that the current time lies
3838 between thisUpdate and nextUpdate max reject otherwise valid responses
3839 caused by either OCSP responder or client clock inaccuracy. Instead
3840 we allow thisUpdate and nextUpdate to fall within a certain period of
3841 the current time. The age of the response can also optionally be
3842 checked. Two new options -validity_period and -status_age added to
3846 *) If signature or public key algorithm is unrecognized print out its
3847 OID rather that just UNKNOWN.
3850 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3851 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3852 ID to be generated from the issuer certificate alone which can then be
3853 passed to OCSP_id_issuer_cmp().
3856 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3857 ASN1 modules to export functions returning ASN1_ITEM pointers
3858 instead of the ASN1_ITEM structures themselves. This adds several
3859 new macros which allow the underlying ASN1 function/structure to
3860 be accessed transparently. As a result code should not use ASN1_ITEM
3861 references directly (such as &X509_it) but instead use the relevant
3862 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3863 use of the new ASN1 code on platforms where exporting structures
3864 is problematical (for example in shared libraries) but exporting
3865 functions returning pointers to structures is not.
3868 *) Add support for overriding the generation of SSL/TLS session IDs.
3869 These callbacks can be registered either in an SSL_CTX or per SSL.
3870 The purpose of this is to allow applications to control, if they wish,
3871 the arbitrary values chosen for use as session IDs, particularly as it
3872 can be useful for session caching in multiple-server environments. A
3873 command-line switch for testing this (and any client code that wishes
3874 to use such a feature) has been added to "s_server".
3875 [Geoff Thorpe, Lutz Jaenicke]
3877 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3878 of the form '#if defined(...) || defined(...) || ...' and
3879 '#if !defined(...) && !defined(...) && ...'. This also avoids
3880 the growing number of special cases it was previously handling.
3883 *) Make all configuration macros available for application by making
3884 sure they are available in opensslconf.h, by giving them names starting
3885 with "OPENSSL_" to avoid conflicts with other packages and by making
3886 sure e_os2.h will cover all platform-specific cases together with
3888 Additionally, it is now possible to define configuration/platform-
3889 specific names (called "system identities"). In the C code, these
3890 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3891 macro with the name beginning with "OPENSSL_SYS_", which is determined
3892 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3896 *) New option -set_serial to 'req' and 'x509' this allows the serial
3897 number to use to be specified on the command line. Previously self
3898 signed certificates were hard coded with serial number 0 and the
3899 CA options of 'x509' had to use a serial number in a file which was
3903 *) New options to 'ca' utility to support V2 CRL entry extensions.
3904 Currently CRL reason, invalidity date and hold instruction are
3905 supported. Add new CRL extensions to V3 code and some new objects.
3908 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3909 disable standard block padding (aka PKCS#5 padding) in the EVP
3910 API, which was previously mandatory. This means that the data is
3911 not padded in any way and so the total length much be a multiple
3912 of the block size, otherwise an error occurs.
3915 *) Initial (incomplete) OCSP SSL support.
3918 *) New function OCSP_parse_url(). This splits up a URL into its host,
3919 port and path components: primarily to parse OCSP URLs. New -url
3920 option to ocsp utility.
3923 *) New nonce behavior. The return value of OCSP_check_nonce() now
3924 reflects the various checks performed. Applications can decide
3925 whether to tolerate certain situations such as an absent nonce
3926 in a response when one was present in a request: the ocsp application
3927 just prints out a warning. New function OCSP_add1_basic_nonce()
3928 this is to allow responders to include a nonce in a response even if
3929 the request is nonce-less.
3932 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3933 skipped when using openssl x509 multiple times on a single input file,
3934 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3937 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3938 set string type: to handle setting ASN1_TIME structures. Fix ca
3939 utility to correctly initialize revocation date of CRLs.
3942 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3943 the clients preferred ciphersuites and rather use its own preferences.
3944 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3945 Internet Explorer by ensuring unchanged hash method during stepup.
3946 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3949 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3950 to aes and add a new 'exist' option to print out symbols that don't
3954 *) Additional options to ocsp utility to allow flags to be set and
3955 additional certificates supplied.
3958 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3959 OCSP client a number of certificate to only verify the response
3963 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3964 handle the new API. Currently only ECB, CBC modes supported. Add new
3967 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3968 Encryption Standard (AES) Ciphersuites for Transport Layer
3969 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3970 not enabled by default and were not part of the "ALL" ciphersuite
3971 alias because they were not yet official; they could be
3972 explicitly requested by specifying the "AESdraft" ciphersuite
3973 group alias. In the final release of OpenSSL 0.9.7, the group
3974 alias is called "AES" and is part of "ALL".)
3975 [Ben Laurie, Steve Henson, Bodo Moeller]
3977 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3978 request to response.
3981 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3982 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3983 extract information from a certificate request. OCSP_response_create()
3984 creates a response and optionally adds a basic response structure.
3985 OCSP_basic_add1_status() adds a complete single response to a basic
3986 response and returns the OCSP_SINGLERESP structure just added (to allow
3987 extensions to be included for example). OCSP_basic_add1_cert() adds a
3988 certificate to a basic response and OCSP_basic_sign() signs a basic
3989 response with various flags. New helper functions ASN1_TIME_check()
3990 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3991 (converts ASN1_TIME to GeneralizedTime).
3994 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3995 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3996 structure from a certificate. X509_pubkey_digest() digests the public_key
3997 contents: this is used in various key identifiers.
4000 *) Make sk_sort() tolerate a NULL argument.
4001 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4003 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4004 passed by the function are trusted implicitly. If any of them signed the
4005 response then it is assumed to be valid and is not verified.
4008 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4009 to data. This was previously part of the PKCS7 ASN1 code. This
4010 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4011 [Steve Henson, reported by Kenneth R. Robinette
4012 <support@securenetterm.com>]
4014 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4015 routines: without these tracing memory leaks is very painful.
4016 Fix leaks in PKCS12 and PKCS7 routines.
4019 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4020 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4021 effectively meant GeneralizedTime would never be used. Now it
4022 is initialised to -1 but X509_time_adj() now has to check the value
4023 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4024 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4025 [Steve Henson, reported by Kenneth R. Robinette
4026 <support@securenetterm.com>]
4028 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4029 result in a zero length in the ASN1_INTEGER structure which was
4030 not consistent with the structure when d2i_ASN1_INTEGER() was used
4031 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4032 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4033 where it did not print out a minus for negative ASN1_INTEGER.
4036 *) Add summary printout to ocsp utility. The various functions which
4037 convert status values to strings have been renamed to:
4038 OCSP_response_status_str(), OCSP_cert_status_str() and
4039 OCSP_crl_reason_str() and are no longer static. New options
4040 to verify nonce values and to disable verification. OCSP response
4041 printout format cleaned up.
4044 *) Add additional OCSP certificate checks. These are those specified
4045 in RFC2560. This consists of two separate checks: the CA of the
4046 certificate being checked must either be the OCSP signer certificate
4047 or the issuer of the OCSP signer certificate. In the latter case the
4048 OCSP signer certificate must contain the OCSP signing extended key
4049 usage. This check is performed by attempting to match the OCSP
4050 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4051 in the OCSP_CERTID structures of the response.
4054 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4055 and related routines. This uses the standard OpenSSL certificate
4056 verify routines to perform initial checks (just CA validity) and
4057 to obtain the certificate chain. Then additional checks will be
4058 performed on the chain. Currently the root CA is checked to see
4059 if it is explicitly trusted for OCSP signing. This is used to set
4060 a root CA as a global signing root: that is any certificate that
4061 chains to that CA is an acceptable OCSP signing certificate.
4064 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4065 extensions from a separate configuration file.
4066 As when reading extensions from the main configuration file,
4067 the '-extensions ...' option may be used for specifying the
4069 [Massimiliano Pala <madwolf@comune.modena.it>]
4071 *) New OCSP utility. Allows OCSP requests to be generated or
4072 read. The request can be sent to a responder and the output
4073 parsed, outputed or printed in text form. Not complete yet:
4074 still needs to check the OCSP response validity.
4077 *) New subcommands for 'openssl ca':
4078 'openssl ca -status <serial>' prints the status of the cert with
4079 the given serial number (according to the index file).
4080 'openssl ca -updatedb' updates the expiry status of certificates
4082 [Massimiliano Pala <madwolf@comune.modena.it>]
4084 *) New '-newreq-nodes' command option to CA.pl. This is like
4085 '-newreq', but calls 'openssl req' with the '-nodes' option
4086 so that the resulting key is not encrypted.
4087 [Damien Miller <djm@mindrot.org>]
4089 *) New configuration for the GNU Hurd.
4090 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4092 *) Initial code to implement OCSP basic response verify. This
4093 is currently incomplete. Currently just finds the signer's
4094 certificate and verifies the signature on the response.
4097 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4098 value of OPENSSLDIR. This is available via the new '-d' option
4099 to 'openssl version', and is also included in 'openssl version -a'.
4102 *) Allowing defining memory allocation callbacks that will be given
4103 file name and line number information in additional arguments
4104 (a const char* and an int). The basic functionality remains, as
4105 well as the original possibility to just replace malloc(),
4106 realloc() and free() by functions that do not know about these
4107 additional arguments. To register and find out the current
4108 settings for extended allocation functions, the following
4109 functions are provided:
4111 CRYPTO_set_mem_ex_functions
4112 CRYPTO_set_locked_mem_ex_functions
4113 CRYPTO_get_mem_ex_functions
4114 CRYPTO_get_locked_mem_ex_functions
4116 These work the same way as CRYPTO_set_mem_functions and friends.
4117 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4118 extended allocation function is enabled.
4119 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4120 a conventional allocation function is enabled.
4121 [Richard Levitte, Bodo Moeller]
4123 *) Finish off removing the remaining LHASH function pointer casts.
4124 There should no longer be any prototype-casting required when using
4125 the LHASH abstraction, and any casts that remain are "bugs". See
4126 the callback types and macros at the head of lhash.h for details
4127 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4130 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4131 If /dev/[u]random devices are not available or do not return enough
4132 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4134 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4135 /etc/entropy will be queried once each in this sequence, quering stops
4136 when enough entropy was collected without querying more sockets.
4139 *) Change the Unix RAND_poll() variant to be able to poll several
4140 random devices, as specified by DEVRANDOM, until a sufficient amount
4141 of data has been collected. We spend at most 10 ms on each file
4142 (select timeout) and read in non-blocking mode. DEVRANDOM now
4143 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4144 (previously it was just the string "/dev/urandom"), so on typical
4145 platforms the 10 ms delay will never occur.
4146 Also separate out the Unix variant to its own file, rand_unix.c.
4147 For VMS, there's a currently-empty rand_vms.c.
4150 *) Move OCSP client related routines to ocsp_cl.c. These
4151 provide utility functions which an application needing
4152 to issue a request to an OCSP responder and analyse the
4153 response will typically need: as opposed to those which an
4154 OCSP responder itself would need which will be added later.
4156 OCSP_request_sign() signs an OCSP request with an API similar
4157 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4158 response. OCSP_response_get1_basic() extracts basic response
4159 from response. OCSP_resp_find_status(): finds and extracts status
4160 information from an OCSP_CERTID structure (which will be created
4161 when the request structure is built). These are built from lower
4162 level functions which work on OCSP_SINGLERESP structures but
4163 wont normally be used unless the application wishes to examine
4164 extensions in the OCSP response for example.
4166 Replace nonce routines with a pair of functions.
4167 OCSP_request_add1_nonce() adds a nonce value and optionally
4168 generates a random value. OCSP_check_nonce() checks the
4169 validity of the nonce in an OCSP response.
4172 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4173 This doesn't copy the supplied OCSP_CERTID and avoids the
4174 need to free up the newly created id. Change return type
4175 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4176 This can then be used to add extensions to the request.
4177 Deleted OCSP_request_new(), since most of its functionality
4178 is now in OCSP_REQUEST_new() (and the case insensitive name
4179 clash) apart from the ability to set the request name which
4180 will be added elsewhere.
4183 *) Update OCSP API. Remove obsolete extensions argument from
4184 various functions. Extensions are now handled using the new
4185 OCSP extension code. New simple OCSP HTTP function which
4186 can be used to send requests and parse the response.
4189 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4190 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4191 uses the special reorder version of SET OF to sort the attributes
4192 and reorder them to match the encoded order. This resolves a long
4193 standing problem: a verify on a PKCS7 structure just after signing
4194 it used to fail because the attribute order did not match the
4195 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4196 it uses the received order. This is necessary to tolerate some broken
4197 software that does not order SET OF. This is handled by encoding
4198 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4199 to produce the required SET OF.
4202 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4203 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4204 files to get correct declarations of the ASN.1 item variables.
4207 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4208 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4209 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4210 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4211 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4212 ASN1_ITEM and no wrapper functions.
4215 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4216 replace the old function pointer based I/O routines. Change most of
4217 the *_d2i_bio() and *_d2i_fp() functions to use these.
4220 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4221 lines, recognice more "algorithms" that can be deselected, and make
4222 it complain about algorithm deselection that isn't recognised.
4225 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4226 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4227 to use new functions. Add NO_ASN1_OLD which can be set to remove
4228 some old style ASN1 functions: this can be used to determine if old
4229 code will still work when these eventually go away.
4232 *) New extension functions for OCSP structures, these follow the
4233 same conventions as certificates and CRLs.
4236 *) New function X509V3_add1_i2d(). This automatically encodes and
4237 adds an extension. Its behaviour can be customised with various
4238 flags to append, replace or delete. Various wrappers added for
4239 certifcates and CRLs.
4242 *) Fix to avoid calling the underlying ASN1 print routine when
4243 an extension cannot be parsed. Correct a typo in the
4244 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4247 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4248 entries for variables.
4251 *) Add functionality to apps/openssl.c for detecting locking
4252 problems: As the program is single-threaded, all we have
4253 to do is register a locking callback using an array for
4254 storing which locks are currently held by the program.
4257 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4258 SSL_get_ex_data_X509_STORE_idx(), which is used in
4259 ssl_verify_cert_chain() and thus can be called at any time
4260 during TLS/SSL handshakes so that thread-safety is essential.
4261 Unfortunately, the ex_data design is not at all suited
4262 for multi-threaded use, so it probably should be abolished.
4265 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4266 [Broadcom, tweaked and integrated by Geoff Thorpe]
4268 *) Move common extension printing code to new function
4269 X509V3_print_extensions(). Reorganise OCSP print routines and
4270 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4273 *) New function X509_signature_print() to remove duplication in some
4277 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4278 set (this was treated exactly the same as SET OF previously). This
4279 is used to reorder the STACK representing the structure to match the
4280 encoding. This will be used to get round a problem where a PKCS7
4281 structure which was signed could not be verified because the STACK
4282 order did not reflect the encoded order.
4285 *) Reimplement the OCSP ASN1 module using the new code.
4288 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4289 for its ASN1 operations. The old style function pointers still exist
4290 for now but they will eventually go away.
4293 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4294 completely replaces the old ASN1 functionality with a table driven
4295 encoder and decoder which interprets an ASN1_ITEM structure describing
4296 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4297 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4298 has also been converted to the new form.
4301 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4302 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4303 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4304 for negative moduli.
4307 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4308 of not touching the result's sign bit.
4311 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4315 *) Changed the LHASH code to use prototypes for callbacks, and created
4316 macros to declare and implement thin (optionally static) functions
4317 that provide type-safety and avoid function pointer casting for the
4318 type-specific callbacks.
4321 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4323 [Veers Staats <staatsvr@asc.hpc.mil>,
4324 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4326 *) Reformat the FAQ so the different questions and answers can be divided
4327 in sections depending on the subject.
4330 *) Have the zlib compression code load ZLIB.DLL dynamically under
4334 *) New function BN_mod_sqrt for computing square roots modulo a prime
4335 (using the probabilistic Tonelli-Shanks algorithm unless
4336 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4337 be handled deterministically).
4338 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4340 *) Make BN_mod_inverse faster by explicitly handling small quotients
4341 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4342 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4345 *) New function BN_kronecker.
4348 *) Fix BN_gcd so that it works on negative inputs; the result is
4349 positive unless both parameters are zero.
4350 Previously something reasonably close to an infinite loop was
4351 possible because numbers could be growing instead of shrinking
4352 in the implementation of Euclid's algorithm.
4355 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4356 sign of the number in question.
4358 Fix BN_is_word(a,w) to work correctly for w == 0.
4360 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4361 because its test if the absolute value of 'a' equals 'w'.
4362 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4363 it exists mostly for use in the implementations of BN_is_zero(),
4364 BN_is_one(), and BN_is_word().
4367 *) New function BN_swap.
4370 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4371 the exponentiation functions are more likely to produce reasonable
4372 results on negative inputs.
4375 *) Change BN_mod_mul so that the result is always non-negative.
4376 Previously, it could be negative if one of the factors was negative;
4377 I don't think anyone really wanted that behaviour.
4380 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4381 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4382 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4383 and add new functions:
4392 BN_mod_lshift1_quick
4396 These functions always generate non-negative results.
4398 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4399 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4401 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4402 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4403 be reduced modulo m.
4404 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4407 The following entry accidentily appeared in the CHANGES file
4408 distributed with OpenSSL 0.9.7. The modifications described in
4409 it do *not* apply to OpenSSL 0.9.7.
4411 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4412 was actually never needed) and in BN_mul(). The removal in BN_mul()
4413 required a small change in bn_mul_part_recursive() and the addition
4414 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4415 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4416 bn_sub_words() and bn_add_words() except they take arrays with
4421 *) In 'openssl passwd', verify passwords read from the terminal
4422 unless the '-salt' option is used (which usually means that
4423 verification would just waste user's time since the resulting
4424 hash is going to be compared with some given password hash)
4425 or the new '-noverify' option is used.
4427 This is an incompatible change, but it does not affect
4428 non-interactive use of 'openssl passwd' (passwords on the command
4429 line, '-stdin' option, '-in ...' option) and thus should not
4433 *) Remove all references to RSAref, since there's no more need for it.
4436 *) Make DSO load along a path given through an environment variable
4437 (SHLIB_PATH) with shl_load().
4440 *) Constify the ENGINE code as a result of BIGNUM constification.
4441 Also constify the RSA code and most things related to it. In a
4442 few places, most notable in the depth of the ASN.1 code, ugly
4443 casts back to non-const were required (to be solved at a later
4447 *) Make it so the openssl application has all engines loaded by default.
4450 *) Constify the BIGNUM routines a little more.
4453 *) Add the following functions:
4455 ENGINE_load_cswift()
4457 ENGINE_load_atalla()
4459 ENGINE_load_builtin_engines()
4461 That way, an application can itself choose if external engines that
4462 are built-in in OpenSSL shall ever be used or not. The benefit is
4463 that applications won't have to be linked with libdl or other dso
4464 libraries unless it's really needed.
4466 Changed 'openssl engine' to load all engines on demand.
4467 Changed the engine header files to avoid the duplication of some
4468 declarations (they differed!).
4471 *) 'openssl engine' can now list capabilities.
4474 *) Better error reporting in 'openssl engine'.
4477 *) Never call load_dh_param(NULL) in s_server.
4480 *) Add engine application. It can currently list engines by name and
4481 identity, and test if they are actually available.
4484 *) Improve RPM specification file by forcing symbolic linking and making
4485 sure the installed documentation is also owned by root.root.
4486 [Damien Miller <djm@mindrot.org>]
4488 *) Give the OpenSSL applications more possibilities to make use of
4489 keys (public as well as private) handled by engines.
4492 *) Add OCSP code that comes from CertCo.
4495 *) Add VMS support for the Rijndael code.
4498 *) Added untested support for Nuron crypto accelerator.
4501 *) Add support for external cryptographic devices. This code was
4502 previously distributed separately as the "engine" branch.
4503 [Geoff Thorpe, Richard Levitte]
4505 *) Rework the filename-translation in the DSO code. It is now possible to
4506 have far greater control over how a "name" is turned into a filename
4507 depending on the operating environment and any oddities about the
4508 different shared library filenames on each system.
4511 *) Support threads on FreeBSD-elf in Configure.
4514 *) Fix for SHA1 assembly problem with MASM: it produces
4515 warnings about corrupt line number information when assembling
4516 with debugging information. This is caused by the overlapping
4518 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4521 NCONF_get_number() has no error checking at all. As a replacement,
4522 NCONF_get_number_e() is defined (_e for "error checking") and is
4523 promoted strongly. The old NCONF_get_number is kept around for
4524 binary backward compatibility.
4525 Make it possible for methods to load from something other than a BIO,
4526 by providing a function pointer that is given a name instead of a BIO.
4527 For example, this could be used to load configuration data from an
4531 *) Fix for non blocking accept BIOs. Added new I/O special reason
4532 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4533 with non blocking I/O was not possible because no retry code was
4534 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4538 *) Added the beginnings of Rijndael support.
4541 *) Fix for bug in DirectoryString mask setting. Add support for
4542 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4543 to allow certificate printing to more controllable, additional
4544 'certopt' option to 'x509' to allow new printing options to be
4548 *) Clean old EAY MD5 hack from e_os.h.
4551 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4553 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4554 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4555 [Joe Orton, Steve Henson]
4557 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4559 *) Fix additional bug revealed by the NISCC test suite:
4561 Stop bug triggering large recursion when presented with
4562 certain ASN.1 tags (CVE-2003-0851)
4565 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4567 *) Fix various bugs revealed by running the NISCC test suite:
4569 Stop out of bounds reads in the ASN1 code when presented with
4570 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4572 If verify callback ignores invalid public key errors don't try to check
4573 certificate signature with the NULL public key.
4577 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4578 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4582 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4583 extra data after the compression methods not only for TLS 1.0
4584 but also for SSL 3.0 (as required by the specification).
4585 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4587 *) Change X509_certificate_type() to mark the key as exported/exportable
4588 when it's 512 *bits* long, not 512 bytes.
4591 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4593 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4594 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4595 a protocol version number mismatch like a decryption error
4596 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4599 *) Turn on RSA blinding by default in the default implementation
4600 to avoid a timing attack. Applications that don't want it can call
4601 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4602 They would be ill-advised to do so in most cases.
4603 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4605 *) Change RSA blinding code so that it works when the PRNG is not
4606 seeded (in this case, the secret RSA exponent is abused as
4607 an unpredictable seed -- if it is not unpredictable, there
4608 is no point in blinding anyway). Make RSA blinding thread-safe
4609 by remembering the creator's thread ID in rsa->blinding and
4610 having all other threads use local one-time blinding factors
4611 (this requires more computation than sharing rsa->blinding, but
4612 avoids excessive locking; and if an RSA object is not shared
4613 between threads, blinding will still be very fast).
4616 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4618 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4619 via timing by performing a MAC computation even if incorrrect
4620 block cipher padding has been found. This is a countermeasure
4621 against active attacks where the attacker has to distinguish
4622 between bad padding and a MAC verification error. (CVE-2003-0078)
4624 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4625 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4626 Martin Vuagnoux (EPFL, Ilion)]
4628 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4630 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4631 memory from it's contents. This is done with a counter that will
4632 place alternating values in each byte. This can be used to solve
4633 two issues: 1) the removal of calls to memset() by highly optimizing
4634 compilers, and 2) cleansing with other values than 0, since those can
4635 be read through on certain media, for example a swap space on disk.
4638 *) Bugfix: client side session caching did not work with external caching,
4639 because the session->cipher setting was not restored when reloading
4640 from the external cache. This problem was masked, when
4641 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4642 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4645 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4646 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4647 [Zeev Lieber <zeev-l@yahoo.com>]
4649 *) Undo an undocumented change introduced in 0.9.6e which caused
4650 repeated calls to OpenSSL_add_all_ciphers() and
4651 OpenSSL_add_all_digests() to be ignored, even after calling
4655 *) Change the default configuration reader to deal with last line not
4656 being properly terminated.
4659 *) Change X509_NAME_cmp() so it applies the special rules on handling
4660 DN values that are of type PrintableString, as well as RDNs of type
4661 emailAddress where the value has the type ia5String.
4662 [stefank@valicert.com via Richard Levitte]
4664 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4665 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4666 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4667 the bitwise-OR of the two for use by the majority of applications
4668 wanting this behaviour, and update the docs. The documented
4669 behaviour and actual behaviour were inconsistent and had been
4670 changing anyway, so this is more a bug-fix than a behavioural
4672 [Geoff Thorpe, diagnosed by Nadav Har'El]
4674 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4675 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4678 *) Fix initialization code race conditions in
4679 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4680 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4681 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4682 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4683 ssl2_get_cipher_by_char(),
4684 ssl3_get_cipher_by_char().
4685 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4687 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4688 the cached sessions are flushed, as the remove_cb() might use ex_data
4689 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4690 (see [openssl.org #212]).
4691 [Geoff Thorpe, Lutz Jaenicke]
4693 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4694 length, instead of the encoding length to d2i_ASN1_OBJECT.
4697 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4699 *) [In 0.9.6g-engine release:]
4700 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4701 [Lynn Gazis <lgazis@rainbow.com>]
4703 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4705 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4706 and get fix the header length calculation.
4707 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4708 Alon Kantor <alonk@checkpoint.com> (and others),
4711 *) Use proper error handling instead of 'assertions' in buffer
4712 overflow checks added in 0.9.6e. This prevents DoS (the
4713 assertions could call abort()).
4714 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4716 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4718 *) Add various sanity checks to asn1_get_length() to reject
4719 the ASN1 length bytes if they exceed sizeof(long), will appear
4720 negative or the content length exceeds the length of the
4722 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4724 *) Fix cipher selection routines: ciphers without encryption had no flags
4725 for the cipher strength set and where therefore not handled correctly
4726 by the selection routines (PR #130).
4729 *) Fix EVP_dsa_sha macro.
4733 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4734 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4735 that was added in OpenSSL 0.9.6d.
4737 As the countermeasure turned out to be incompatible with some
4738 broken SSL implementations, the new option is part of SSL_OP_ALL.
4739 SSL_OP_ALL is usually employed when compatibility with weird SSL
4740 implementations is desired (e.g. '-bugs' option to 's_client' and
4741 's_server'), so the new option is automatically set in many
4745 *) Changes in security patch:
4747 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4748 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4749 Air Force Materiel Command, USAF, under agreement number
4752 *) Add various sanity checks to asn1_get_length() to reject
4753 the ASN1 length bytes if they exceed sizeof(long), will appear
4754 negative or the content length exceeds the length of the
4755 supplied buffer. (CVE-2002-0659)
4756 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4758 *) Assertions for various potential buffer overflows, not known to
4760 [Ben Laurie (CHATS)]
4762 *) Various temporary buffers to hold ASCII versions of integers were
4763 too small for 64 bit platforms. (CVE-2002-0655)
4764 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4766 *) Remote buffer overflow in SSL3 protocol - an attacker could
4767 supply an oversized session ID to a client. (CVE-2002-0656)
4768 [Ben Laurie (CHATS)]
4770 *) Remote buffer overflow in SSL2 protocol - an attacker could
4771 supply an oversized client master key. (CVE-2002-0656)
4772 [Ben Laurie (CHATS)]
4774 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4776 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4777 encoded as NULL) with id-dsa-with-sha1.
4778 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4780 *) Check various X509_...() return values in apps/req.c.
4781 [Nils Larsch <nla@trustcenter.de>]
4783 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4784 an end-of-file condition would erronously be flagged, when the CRLF
4785 was just at the end of a processed block. The bug was discovered when
4786 processing data through a buffering memory BIO handing the data to a
4787 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4788 <ptsekov@syntrex.com> and Nedelcho Stanev.
4791 *) Implement a countermeasure against a vulnerability recently found
4792 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4793 before application data chunks to avoid the use of known IVs
4794 with data potentially chosen by the attacker.
4797 *) Fix length checks in ssl3_get_client_hello().
4800 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4801 to prevent ssl3_read_internal() from incorrectly assuming that
4802 ssl3_read_bytes() found application data while handshake
4803 processing was enabled when in fact s->s3->in_read_app_data was
4804 merely automatically cleared during the initial handshake.
4805 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4807 *) Fix object definitions for Private and Enterprise: they were not
4808 recognized in their shortname (=lowercase) representation. Extend
4809 obj_dat.pl to issue an error when using undefined keywords instead
4810 of silently ignoring the problem (Svenning Sorensen
4811 <sss@sss.dnsalias.net>).
4814 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4815 generators, i.e. generators other than 2 and 5. (Previously, the
4816 code did not properly initialise the 'add' and 'rem' values to
4817 BN_generate_prime().)
4819 In the new general case, we do not insist that 'generator' is
4820 actually a primitive root: This requirement is rather pointless;
4821 a generator of the order-q subgroup is just as good, if not
4825 *) Map new X509 verification errors to alerts. Discovered and submitted by
4826 Tom Wu <tom@arcot.com>.
4829 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4830 returning non-zero before the data has been completely received
4831 when using non-blocking I/O.
4832 [Bodo Moeller; problem pointed out by John Hughes]
4834 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4835 [Ben Laurie, Lutz Jaenicke]
4837 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4838 Yoram Zahavi <YoramZ@gilian.com>).
4841 *) Add information about CygWin 1.3 and on, and preserve proper
4842 configuration for the versions before that.
4843 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4845 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4846 check whether we deal with a copy of a session and do not delete from
4847 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4848 <izhar@checkpoint.com>.
4851 *) Do not store session data into the internal session cache, if it
4852 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4853 flag is set). Proposed by Aslam <aslam@funk.com>.
4856 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4860 *) [In 0.9.6d-engine release:]
4861 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4862 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4864 *) Add the configuration target linux-s390x.
4865 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4867 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4868 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4869 variable as an indication that a ClientHello message has been
4870 received. As the flag value will be lost between multiple
4871 invocations of ssl3_accept when using non-blocking I/O, the
4872 function may not be aware that a handshake has actually taken
4873 place, thus preventing a new session from being added to the
4876 To avoid this problem, we now set s->new_session to 2 instead of
4877 using a local variable.
4878 [Lutz Jaenicke, Bodo Moeller]
4880 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4881 if the SSL_R_LENGTH_MISMATCH error is detected.
4882 [Geoff Thorpe, Bodo Moeller]
4884 *) New 'shared_ldflag' column in Configure platform table.
4887 *) Fix EVP_CIPHER_mode macro.
4888 ["Dan S. Camper" <dan@bti.net>]
4890 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4891 type, we must throw them away by setting rr->length to 0.
4892 [D P Chang <dpc@qualys.com>]
4894 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4896 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4897 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4898 worked incorrectly for those cases where range = 10..._2 and
4899 3*range is two bits longer than range.)
4902 *) Only add signing time to PKCS7 structures if it is not already
4906 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4907 OBJ_ld_ce should be OBJ_id_ce.
4908 Also some ip-pda OIDs in crypto/objects/objects.txt were
4909 incorrect (cf. RFC 3039).
4910 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4912 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4913 returns early because it has nothing to do.
4914 [Andy Schneider <andy.schneider@bjss.co.uk>]
4916 *) [In 0.9.6c-engine release:]
4917 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4918 [Andy Schneider <andy.schneider@bjss.co.uk>]
4920 *) [In 0.9.6c-engine release:]
4921 Add support for Cryptographic Appliance's keyserver technology.
4922 (Use engine 'keyclient')
4923 [Cryptographic Appliances and Geoff Thorpe]
4925 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4926 is called via tools/c89.sh because arguments have to be
4927 rearranged (all '-L' options must appear before the first object
4929 [Richard Shapiro <rshapiro@abinitio.com>]
4931 *) [In 0.9.6c-engine release:]
4932 Add support for Broadcom crypto accelerator cards, backported
4934 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4936 *) [In 0.9.6c-engine release:]
4937 Add support for SureWare crypto accelerator cards from
4938 Baltimore Technologies. (Use engine 'sureware')
4939 [Baltimore Technologies and Mark Cox]
4941 *) [In 0.9.6c-engine release:]
4942 Add support for crypto accelerator cards from Accelerated
4943 Encryption Processing, www.aep.ie. (Use engine 'aep')
4944 [AEP Inc. and Mark Cox]
4946 *) Add a configuration entry for gcc on UnixWare.
4947 [Gary Benson <gbenson@redhat.com>]
4949 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4950 messages are stored in a single piece (fixed-length part and
4951 variable-length part combined) and fix various bugs found on the way.
4954 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4955 instead. BIO_gethostbyname() does not know what timeouts are
4956 appropriate, so entries would stay in cache even when they have
4958 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4960 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4961 faced with a pathologically small ClientHello fragment that does
4962 not contain client_version: Instead of aborting with an error,
4963 simply choose the highest available protocol version (i.e.,
4964 TLS 1.0 unless it is disabled). In practice, ClientHello
4965 messages are never sent like this, but this change gives us
4966 strictly correct behaviour at least for TLS.
4969 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4970 never resets s->method to s->ctx->method when called from within
4971 one of the SSL handshake functions.
4972 [Bodo Moeller; problem pointed out by Niko Baric]
4974 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4975 (sent using the client's version number) if client_version is
4976 smaller than the protocol version in use. Also change
4977 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4978 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4979 the client will at least see that alert.
4982 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4986 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4987 client receives HelloRequest while in a handshake.
4988 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4990 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4991 should end in 'break', not 'goto end' which circuments various
4992 cleanups done in state SSL_ST_OK. But session related stuff
4993 must be disabled for SSL_ST_OK in the case that we just sent a
4996 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4997 before just sending a HelloRequest.
4998 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5000 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5001 reveal whether illegal block cipher padding was found or a MAC
5002 verification error occured. (Neither SSLerr() codes nor alerts
5003 are directly visible to potential attackers, but the information
5004 may leak via logfiles.)
5006 Similar changes are not required for the SSL 2.0 implementation
5007 because the number of padding bytes is sent in clear for SSL 2.0,
5008 and the extra bytes are just ignored. However ssl/s2_pkt.c
5009 failed to verify that the purported number of padding bytes is in
5013 *) Add OpenUNIX-8 support including shared libraries
5014 (Boyd Lynn Gerber <gerberb@zenez.com>).
5017 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5018 'wristwatch attack' using huge encoding parameters (cf.
5019 James H. Manger's CRYPTO 2001 paper). Note that the
5020 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5021 encoding parameters and hence was not vulnerable.
5024 *) BN_sqr() bug fix.
5025 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5027 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5028 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5029 followed by modular reduction.
5030 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5032 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5033 equivalent based on BN_pseudo_rand() instead of BN_rand().
5036 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5037 This function was broken, as the check for a new client hello message
5038 to handle SGC did not allow these large messages.
5039 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5042 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5045 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5046 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5049 *) Rework the configuration and shared library support for Tru64 Unix.
5050 The configuration part makes use of modern compiler features and
5051 still retains old compiler behavior for those that run older versions
5052 of the OS. The shared library support part includes a variant that
5053 uses the RPATH feature, and is available through the special
5054 configuration target "alpha-cc-rpath", which will never be selected
5056 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5058 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5059 with the same message size as in ssl3_get_certificate_request().
5060 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5061 messages might inadvertently be reject as too long.
5062 [Petr Lampa <lampa@fee.vutbr.cz>]
5064 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5067 *) Modified SSL library such that the verify_callback that has been set
5068 specificly for an SSL object with SSL_set_verify() is actually being
5069 used. Before the change, a verify_callback set with this function was
5070 ignored and the verify_callback() set in the SSL_CTX at the time of
5071 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5072 to allow the necessary settings.
5075 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5076 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5077 done automatically (in contradiction to the requirements of the C
5078 standard). This made problems when used from OpenSSH.
5081 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5082 dh->length and always used
5084 BN_rand_range(priv_key, dh->p).
5086 BN_rand_range() is not necessary for Diffie-Hellman, and this
5087 specific range makes Diffie-Hellman unnecessarily inefficient if
5088 dh->length (recommended exponent length) is much smaller than the
5089 length of dh->p. We could use BN_rand_range() if the order of
5090 the subgroup was stored in the DH structure, but we only have
5095 BN_rand(priv_key, l, ...)
5097 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5103 RSA_eay_public_encrypt
5104 RSA_eay_private_decrypt
5105 RSA_eay_private_encrypt (signing)
5106 RSA_eay_public_decrypt (signature verification)
5108 (default implementations for RSA_public_encrypt,
5109 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5110 always reject numbers >= n.
5113 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5114 to synchronize access to 'locking_thread'. This is necessary on
5115 systems where access to 'locking_thread' (an 'unsigned long'
5116 variable) is not atomic.
5119 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5120 *before* setting the 'crypto_lock_rand' flag. The previous code had
5121 a race condition if 0 is a valid thread ID.
5122 [Travis Vitek <vitek@roguewave.com>]
5124 *) Add support for shared libraries under Irix.
5125 [Albert Chin-A-Young <china@thewrittenword.com>]
5127 *) Add configuration option to build on Linux on both big-endian and
5129 [Ralf Baechle <ralf@uni-koblenz.de>]
5131 *) Add the possibility to create shared libraries on HP-UX.
5134 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5136 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5137 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5138 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5139 PRNG state recovery was possible based on the output of
5140 one PRNG request appropriately sized to gain knowledge on
5141 'md' followed by enough consecutive 1-byte PRNG requests
5142 to traverse all of 'state'.
5144 1. When updating 'md_local' (the current thread's copy of 'md')
5145 during PRNG output generation, hash all of the previous
5146 'md_local' value, not just the half used for PRNG output.
5148 2. Make the number of bytes from 'state' included into the hash
5149 independent from the number of PRNG bytes requested.
5151 The first measure alone would be sufficient to avoid
5152 Markku-Juhani's attack. (Actually it had never occurred
5153 to me that the half of 'md_local' used for chaining was the
5154 half from which PRNG output bytes were taken -- I had always
5155 assumed that the secret half would be used.) The second
5156 measure makes sure that additional data from 'state' is never
5157 mixed into 'md_local' in small portions; this heuristically
5158 further strengthens the PRNG.
5161 *) Fix crypto/bn/asm/mips3.s.
5164 *) When only the key is given to "enc", the IV is undefined. Print out
5165 an error message in this case.
5168 *) Handle special case when X509_NAME is empty in X509 printing routines.
5171 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5172 positive and less than q.
5175 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5176 used: it isn't thread safe and the add_lock_callback should handle
5178 [Paul Rose <Paul.Rose@bridge.com>]
5180 *) Verify that incoming data obeys the block size in
5181 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5185 [Ulf Möller, Bodo Möller]
5187 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5188 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5189 when fixing the server behaviour for backwards-compatible 'client
5190 hello' messages. (Note that the attack is impractical against
5191 SSL 3.0 and TLS 1.0 anyway because length and version checking
5192 means that the probability of guessing a valid ciphertext is
5193 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5196 Before 0.9.5, the countermeasure (hide the error by generating a
5197 random 'decryption result') did not work properly because
5198 ERR_clear_error() was missing, meaning that SSL_get_error() would
5199 detect the supposedly ignored error.
5201 Both problems are now fixed.
5204 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5205 (previously it was 1024).
5208 *) Fix for compatibility mode trust settings: ignore trust settings
5209 unless some valid trust or reject settings are present.
5212 *) Fix for blowfish EVP: its a variable length cipher.
5215 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5216 parameters in DSA public key structures and return an error in the
5217 DSA routines if parameters are absent.
5220 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5221 in the current directory if neither $RANDFILE nor $HOME was set.
5222 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5223 caused some confusion to Windows users who haven't defined $HOME.
5224 Thus RAND_file_name() is changed again: e_os.h can define a
5225 DEFAULT_HOME, which will be used if $HOME is not set.
5226 For Windows, we use "C:"; on other platforms, we still require
5227 environment variables.
5229 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5230 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5231 having multiple threads call RAND_poll() concurrently.
5234 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5235 combination of a flag and a thread ID variable.
5236 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5237 flag), *other* threads can enter ssleay_add_bytes without obeying
5238 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5239 that they do not hold after the first thread unsets add_do_not_lock).
5242 *) Change bctest again: '-x' expressions are not available in all
5246 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5248 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5249 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5251 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5252 the default extension for executables, if any. Also, make the perl
5253 scripts that use symlink() to test if it really exists and use "cp"
5254 if it doesn't. All this made OpenSSL compilable and installable in
5258 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5259 If SEQUENCE is length is indefinite just set c->slen to the total
5260 amount of data available.
5261 [Steve Henson, reported by shige@FreeBSD.org]
5262 [This change does not apply to 0.9.7.]
5264 *) Change bctest to avoid here-documents inside command substitution
5265 (workaround for FreeBSD /bin/sh bug).
5266 For compatibility with Ultrix, avoid shell functions (introduced
5267 in the bctest version that searches along $PATH).
5270 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5271 with des_encrypt() defined on some operating systems, like Solaris
5275 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5276 On the Importance of Eliminating Errors in Cryptographic
5277 Computations, J. Cryptology 14 (2001) 2, 101-119,
5278 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5281 *) MIPS assembler BIGNUM division bug fix.
5284 *) Disabled incorrect Alpha assembler code.
5287 *) Fix PKCS#7 decode routines so they correctly update the length
5288 after reading an EOC for the EXPLICIT tag.
5290 [This change does not apply to 0.9.7.]
5292 *) Fix bug in PKCS#12 key generation routines. This was triggered
5293 if a 3DES key was generated with a 0 initial byte. Include
5294 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5295 (but broken) behaviour.
5298 *) Enhance bctest to search for a working bc along $PATH and print
5300 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5302 *) Fix memory leaks in err.c: free err_data string if necessary;
5303 don't write to the wrong index in ERR_set_error_data.
5306 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5310 *) Replace rdtsc with _emit statements for VC++ version 5.
5311 [Jeremy Cooper <jeremy@baymoo.org>]
5313 *) Make it possible to reuse SSLv2 sessions.
5316 *) In copy_email() check for >= 0 as a return value for
5317 X509_NAME_get_index_by_NID() since 0 is a valid index.
5318 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5320 *) Avoid coredump with unsupported or invalid public keys by checking if
5321 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5322 PKCS7_verify() fails with non detached data.
5325 *) Don't use getenv in library functions when run as setuid/setgid.
5326 New function OPENSSL_issetugid().
5329 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5330 due to incorrect handling of multi-threading:
5332 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5334 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5336 3. Count how many times MemCheck_off() has been called so that
5337 nested use can be treated correctly. This also avoids
5338 inband-signalling in the previous code (which relied on the
5339 assumption that thread ID 0 is impossible).
5342 *) Add "-rand" option also to s_client and s_server.
5345 *) Fix CPU detection on Irix 6.x.
5346 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5347 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5349 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5352 [This change does not apply to 0.9.7.]
5354 *) Use the cached encoding of an X509_NAME structure rather than
5355 copying it. This is apparently the reason for the libsafe "errors"
5356 but the code is actually correct.
5359 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5360 Bleichenbacher's DSA attack.
5361 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5362 to be set and top=0 forces the highest bit to be set; top=-1 is new
5363 and leaves the highest bit random.
5364 [Ulf Moeller, Bodo Moeller]
5366 *) In the NCONF_...-based implementations for CONF_... queries
5367 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5368 a temporary CONF structure with the data component set to NULL
5369 (which gives segmentation faults in lh_retrieve).
5370 Instead, use NULL for the CONF pointer in CONF_get_string and
5371 CONF_get_number (which may use environment variables) and directly
5372 return NULL from CONF_get_section.
5375 *) Fix potential buffer overrun for EBCDIC.
5378 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5379 keyUsage if basicConstraints absent for a CA.
5382 *) Make SMIME_write_PKCS7() write mail header values with a format that
5383 is more generally accepted (no spaces before the semicolon), since
5384 some programs can't parse those values properly otherwise. Also make
5385 sure BIO's that break lines after each write do not create invalid
5389 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5390 macros previously used would not encode an empty SEQUENCE OF
5391 and break the signature.
5393 [This change does not apply to 0.9.7.]
5395 *) Zero the premaster secret after deriving the master secret in
5399 *) Add some EVP_add_digest_alias registrations (as found in
5400 OpenSSL_add_all_digests()) to SSL_library_init()
5401 aka OpenSSL_add_ssl_algorithms(). This provides improved
5402 compatibility with peers using X.509 certificates
5403 with unconventional AlgorithmIdentifier OIDs.
5406 *) Fix for Irix with NO_ASM.
5407 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5409 *) ./config script fixes.
5410 [Ulf Moeller, Richard Levitte]
5412 *) Fix 'openssl passwd -1'.
5415 *) Change PKCS12_key_gen_asc() so it can cope with non null
5416 terminated strings whose length is passed in the passlen
5417 parameter, for example from PEM callbacks. This was done
5418 by adding an extra length parameter to asc2uni().
5419 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5421 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5422 call failed, free the DSA structure.
5425 *) Fix to uni2asc() to cope with zero length Unicode strings.
5426 These are present in some PKCS#12 files.
5429 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5430 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5431 when writing a 32767 byte record.
5432 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5434 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5435 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5437 (RSA objects have a reference count access to which is protected
5438 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5439 so they are meant to be shared between threads.)
5440 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5441 "Reddie, Steven" <Steven.Reddie@ca.com>]
5443 *) Fix a deadlock in CRYPTO_mem_leaks().
5446 *) Use better test patterns in bntest.
5449 *) rand_win.c fix for Borland C.
5452 *) BN_rshift bugfix for n == 0.
5455 *) Add a 'bctest' script that checks for some known 'bc' bugs
5456 so that 'make test' does not abort just because 'bc' is broken.
5459 *) Store verify_result within SSL_SESSION also for client side to
5460 avoid potential security hole. (Re-used sessions on the client side
5461 always resulted in verify_result==X509_V_OK, not using the original
5462 result of the server certificate verification.)
5465 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5466 SSL3_RT_APPLICATION_DATA, return 0.
5467 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5471 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5472 releases, have been re-implemented by renaming the previous
5473 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5474 and ssl3_read_internal, respectively, and adding 'peek' parameters
5475 to them. The new ssl[23]_{read,peek} functions are calls to
5476 ssl[23]_read_internal with the 'peek' flag set appropriately.
5477 A 'peek' parameter has also been added to ssl3_read_bytes, which
5478 does the actual work for ssl3_read_internal.
5481 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5482 the method-specific "init()" handler. Also clean up ex_data after
5483 calling the method-specific "finish()" handler. Previously, this was
5484 happening the other way round.
5487 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5488 The previous value, 12, was not always sufficient for BN_mod_exp().
5491 *) Make sure that shared libraries get the internal name engine with
5492 the full version number and not just 0. This should mark the
5493 shared libraries as not backward compatible. Of course, this should
5494 be changed again when we can guarantee backward binary compatibility.
5497 *) Fix typo in get_cert_by_subject() in by_dir.c
5498 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5500 *) Rework the system to generate shared libraries:
5502 - Make note of the expected extension for the shared libraries and
5503 if there is a need for symbolic links from for example libcrypto.so.0
5504 to libcrypto.so.0.9.7. There is extended info in Configure for
5507 - Make as few rebuilds of the shared libraries as possible.
5509 - Still avoid linking the OpenSSL programs with the shared libraries.
5511 - When installing, install the shared libraries separately from the
5515 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5517 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5518 and not in SSL_clear because the latter is also used by the
5519 accept/connect functions; previously, the settings made by
5520 SSL_set_read_ahead would be lost during the handshake.
5521 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5523 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5524 Previously, it would create entries for disableed algorithms no
5528 *) Added several new manual pages for SSL_* function.
5531 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5533 *) In ssl23_get_client_hello, generate an error message when faced
5534 with an initial SSL 3.0/TLS record that is too small to contain the
5535 first two bytes of the ClientHello message, i.e. client_version.
5536 (Note that this is a pathologic case that probably has never happened
5537 in real life.) The previous approach was to use the version number
5538 from the record header as a substitute; but our protocol choice
5539 should not depend on that one because it is not authenticated
5540 by the Finished messages.
5543 *) More robust randomness gathering functions for Windows.
5544 [Jeffrey Altman <jaltman@columbia.edu>]
5546 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5547 not set then we don't setup the error code for issuer check errors
5548 to avoid possibly overwriting other errors which the callback does
5549 handle. If an application does set the flag then we assume it knows
5550 what it is doing and can handle the new informational codes
5554 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5555 a general "ANY" type, as such it should be able to decode anything
5556 including tagged types. However it didn't check the class so it would
5557 wrongly interpret tagged types in the same way as their universal
5558 counterpart and unknown types were just rejected. Changed so that the
5559 tagged and unknown types are handled in the same way as a SEQUENCE:
5560 that is the encoding is stored intact. There is also a new type
5561 "V_ASN1_OTHER" which is used when the class is not universal, in this
5562 case we have no idea what the actual type is so we just lump them all
5566 *) On VMS, stdout may very well lead to a file that is written to
5567 in a record-oriented fashion. That means that every write() will
5568 write a separate record, which will be read separately by the
5569 programs trying to read from it. This can be very confusing.
5571 The solution is to put a BIO filter in the way that will buffer
5572 text until a linefeed is reached, and then write everything a
5573 line at a time, so every record written will be an actual line,
5574 not chunks of lines and not (usually doesn't happen, but I've
5575 seen it once) several lines in one record. BIO_f_linebuffer() is
5578 Currently, it's a VMS-only method, because that's where it has
5579 been tested well enough.
5582 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5583 it can return incorrect results.
5584 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5585 but it was in 0.9.6-beta[12].)
5588 *) Disable the check for content being present when verifying detached
5589 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5590 include zero length content when signing messages.
5593 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5594 BIO_ctrl (for BIO pairs).
5597 *) Add DSO method for VMS.
5600 *) Bug fix: Montgomery multiplication could produce results with the
5604 *) Add RPM specification openssl.spec and modify it to build three
5605 packages. The default package contains applications, application
5606 documentation and run-time libraries. The devel package contains
5607 include files, static libraries and function documentation. The
5608 doc package contains the contents of the doc directory. The original
5609 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5612 *) Add a large number of documentation files for many SSL routines.
5613 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5615 *) Add a configuration entry for Sony News 4.
5616 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5618 *) Don't set the two most significant bits to one when generating a
5619 random number < q in the DSA library.
5622 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5623 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5624 the underlying transport is blocking) if a handshake took place.
5625 (The default behaviour is needed by applications such as s_client
5626 and s_server that use select() to determine when to use SSL_read;
5627 but for applications that know in advance when to expect data, it
5628 just makes things more complicated.)
5631 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5635 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5636 work better on such systems.
5637 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5639 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5640 Update PKCS12_parse() so it copies the friendlyName and the
5641 keyid to the certificates aux info.
5644 *) Fix bug in PKCS7_verify() which caused an infinite loop
5645 if there was more than one signature.
5646 [Sven Uszpelkat <su@celocom.de>]
5648 *) Major change in util/mkdef.pl to include extra information
5649 about each symbol, as well as presentig variables as well
5650 as functions. This change means that there's n more need
5651 to rebuild the .num files when some algorithms are excluded.
5654 *) Allow the verify time to be set by an application,
5655 rather than always using the current time.
5658 *) Phase 2 verify code reorganisation. The certificate
5659 verify code now looks up an issuer certificate by a
5660 number of criteria: subject name, authority key id
5661 and key usage. It also verifies self signed certificates
5662 by the same criteria. The main comparison function is
5663 X509_check_issued() which performs these checks.
5665 Lot of changes were necessary in order to support this
5666 without completely rewriting the lookup code.
5668 Authority and subject key identifier are now cached.
5670 The LHASH 'certs' is X509_STORE has now been replaced
5671 by a STACK_OF(X509_OBJECT). This is mainly because an
5672 LHASH can't store or retrieve multiple objects with
5673 the same hash value.
5675 As a result various functions (which were all internal
5676 use only) have changed to handle the new X509_STORE
5677 structure. This will break anything that messed round
5678 with X509_STORE internally.
5680 The functions X509_STORE_add_cert() now checks for an
5681 exact match, rather than just subject name.
5683 The X509_STORE API doesn't directly support the retrieval
5684 of multiple certificates matching a given criteria, however
5685 this can be worked round by performing a lookup first
5686 (which will fill the cache with candidate certificates)
5687 and then examining the cache for matches. This is probably
5688 the best we can do without throwing out X509_LOOKUP
5689 entirely (maybe later...).
5691 The X509_VERIFY_CTX structure has been enhanced considerably.
5693 All certificate lookup operations now go via a get_issuer()
5694 callback. Although this currently uses an X509_STORE it
5695 can be replaced by custom lookups. This is a simple way
5696 to bypass the X509_STORE hackery necessary to make this
5697 work and makes it possible to use more efficient techniques
5698 in future. A very simple version which uses a simple
5699 STACK for its trusted certificate store is also provided
5700 using X509_STORE_CTX_trusted_stack().
5702 The verify_cb() and verify() callbacks now have equivalents
5703 in the X509_STORE_CTX structure.
5705 X509_STORE_CTX also has a 'flags' field which can be used
5706 to customise the verify behaviour.
5709 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5710 excludes S/MIME capabilities.
5713 *) When a certificate request is read in keep a copy of the
5714 original encoding of the signed data and use it when outputing
5715 again. Signatures then use the original encoding rather than
5716 a decoded, encoded version which may cause problems if the
5717 request is improperly encoded.
5720 *) For consistency with other BIO_puts implementations, call
5721 buffer_write(b, ...) directly in buffer_puts instead of calling
5724 In BIO_puts, increment b->num_write as in BIO_write.
5725 [Peter.Sylvester@EdelWeb.fr]
5727 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5728 BN_zero, we may not return a BIGNUM with an array consisting of
5732 *) Avoid calling abort() from within the library when problems are
5733 detected, except if preprocessor symbols have been defined
5734 (such as REF_CHECK, BN_DEBUG etc.).
5737 *) New openssl application 'rsautl'. This utility can be
5738 used for low level RSA operations. DER public key
5739 BIO/fp routines also added.
5742 *) New Configure entry and patches for compiling on QNX 4.
5743 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5745 *) A demo state-machine implementation was sponsored by
5746 Nuron (http://www.nuron.com/) and is now available in
5747 demos/state_machine.
5750 *) New options added to the 'dgst' utility for signature
5751 generation and verification.
5754 *) Unrecognized PKCS#7 content types are now handled via a
5755 catch all ASN1_TYPE structure. This allows unsupported
5756 types to be stored as a "blob" and an application can
5757 encode and decode it manually.
5760 *) Fix various signed/unsigned issues to make a_strex.c
5762 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5764 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5765 length if passed a buffer. ASN1_INTEGER_to_BN failed
5766 if passed a NULL BN and its argument was negative.
5767 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5769 *) Modification to PKCS#7 encoding routines to output definite
5770 length encoding. Since currently the whole structures are in
5771 memory there's not real point in using indefinite length
5772 constructed encoding. However if OpenSSL is compiled with
5773 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5776 *) Added BIO_vprintf() and BIO_vsnprintf().
5779 *) Added more prefixes to parse for in the the strings written
5780 through a logging bio, to cover all the levels that are available
5781 through syslog. The prefixes are now:
5783 PANIC, EMERG, EMR => LOG_EMERG
5784 ALERT, ALR => LOG_ALERT
5785 CRIT, CRI => LOG_CRIT
5786 ERROR, ERR => LOG_ERR
5787 WARNING, WARN, WAR => LOG_WARNING
5788 NOTICE, NOTE, NOT => LOG_NOTICE
5789 INFO, INF => LOG_INFO
5790 DEBUG, DBG => LOG_DEBUG
5792 and as before, if none of those prefixes are present at the
5793 beginning of the string, LOG_ERR is chosen.
5795 On Win32, the LOG_* levels are mapped according to this:
5797 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5798 LOG_WARNING => EVENTLOG_WARNING_TYPE
5799 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5803 *) Made it possible to reconfigure with just the configuration
5804 argument "reconf" or "reconfigure". The command line arguments
5805 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5806 and are retrieved from there when reconfiguring.
5810 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5812 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5815 *) The obj_dat.pl script was messing up the sorting of object
5816 names. The reason was that it compared the quoted version
5817 of strings as a result "OCSP" > "OCSP Signing" because
5818 " > SPACE. Changed script to store unquoted versions of
5819 names and add quotes on output. It was also omitting some
5820 names from the lookup table if they were given a default
5821 value (that is if SN is missing it is given the same
5822 value as LN and vice versa), these are now added on the
5823 grounds that if an object has a name we should be able to
5824 look it up. Finally added warning output when duplicate
5825 short or long names are found.
5828 *) Changes needed for Tandem NSK.
5829 [Scott Uroff <scott@xypro.com>]
5831 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5832 RSA_padding_check_SSLv23(), special padding was never detected
5833 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5834 version rollback attacks was not effective.
5836 In s23_clnt.c, don't use special rollback-attack detection padding
5837 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5838 client; similarly, in s23_srvr.c, don't do the rollback check if
5839 SSL 2.0 is the only protocol enabled in the server.
5842 *) Make it possible to get hexdumps of unprintable data with 'openssl
5843 asn1parse'. By implication, the functions ASN1_parse_dump() and
5844 BIO_dump_indent() are added.
5847 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5848 these print out strings and name structures based on various
5849 flags including RFC2253 support and proper handling of
5850 multibyte characters. Added options to the 'x509' utility
5851 to allow the various flags to be set.
5854 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5855 Also change the functions X509_cmp_current_time() and
5856 X509_gmtime_adj() work with an ASN1_TIME structure,
5857 this will enable certificates using GeneralizedTime in validity
5858 dates to be checked.
5861 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5862 negative public key encodings) on by default,
5863 NO_NEG_PUBKEY_BUG can be set to disable it.
5866 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5867 content octets. An i2c_ASN1_OBJECT is unnecessary because
5868 the encoding can be trivially obtained from the structure.
5871 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5872 not read locks (CRYPTO_r_[un]lock).
5875 *) A first attempt at creating official support for shared
5876 libraries through configuration. I've kept it so the
5877 default is static libraries only, and the OpenSSL programs
5878 are always statically linked for now, but there are
5879 preparations for dynamic linking in place.
5880 This has been tested on Linux and Tru64.
5883 *) Randomness polling function for Win9x, as described in:
5884 Peter Gutmann, Software Generation of Practically Strong
5888 *) Fix so PRNG is seeded in req if using an already existing
5892 *) New options to smime application. -inform and -outform
5893 allow alternative formats for the S/MIME message including
5894 PEM and DER. The -content option allows the content to be
5895 specified separately. This should allow things like Netscape
5896 form signing output easier to verify.
5899 *) Fix the ASN1 encoding of tags using the 'long form'.
5902 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5903 STRING types. These convert content octets to and from the
5904 underlying type. The actual tag and length octets are
5905 already assumed to have been read in and checked. These
5906 are needed because all other string types have virtually
5907 identical handling apart from the tag. By having versions
5908 of the ASN1 functions that just operate on content octets
5909 IMPLICIT tagging can be handled properly. It also allows
5910 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5911 and ASN1_INTEGER are identical apart from the tag.
5914 *) Change the handling of OID objects as follows:
5916 - New object identifiers are inserted in objects.txt, following
5917 the syntax given in objects.README.
5918 - objects.pl is used to process obj_mac.num and create a new
5920 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5923 This is currently kind of a hack, and the perl code in objects.pl
5924 isn't very elegant, but it works as I intended. The simplest way
5925 to check that it worked correctly is to look in obj_dat.h and
5926 check the array nid_objs and make sure the objects haven't moved
5927 around (this is important!). Additions are OK, as well as
5928 consistent name changes.
5931 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5934 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5935 The given file adds to whatever has already been seeded into the
5936 random pool through the RANDFILE configuration file option or
5937 environment variable, or the default random state file.
5940 *) mkstack.pl now sorts each macro group into lexical order.
5941 Previously the output order depended on the order the files
5942 appeared in the directory, resulting in needless rewriting
5946 *) Patches to make OpenSSL compile under Win32 again. Mostly
5947 work arounds for the VC++ problem that it treats func() as
5948 func(void). Also stripped out the parts of mkdef.pl that
5949 added extra typesafe functions: these no longer exist.
5952 *) Reorganisation of the stack code. The macros are now all
5953 collected in safestack.h . Each macro is defined in terms of
5954 a "stack macro" of the form SKM_<name>(type, a, b). The
5955 DEBUG_SAFESTACK is now handled in terms of function casts,
5956 this has the advantage of retaining type safety without the
5957 use of additional functions. If DEBUG_SAFESTACK is not defined
5958 then the non typesafe macros are used instead. Also modified the
5959 mkstack.pl script to handle the new form. Needs testing to see
5960 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5961 the default if no major problems. Similar behaviour for ASN1_SET_OF
5962 and PKCS12_STACK_OF.
5965 *) When some versions of IIS use the 'NET' form of private key the
5966 key derivation algorithm is different. Normally MD5(password) is
5967 used as a 128 bit RC4 key. In the modified case
5968 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5969 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5970 as the old Netscape_RSA functions except they have an additional
5971 'sgckey' parameter which uses the modified algorithm. Also added
5972 an -sgckey command line option to the rsa utility. Thanks to
5973 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5974 algorithm to openssl-dev.
5977 *) The evp_local.h macros were using 'c.##kname' which resulted in
5978 invalid expansion on some systems (SCO 5.0.5 for example).
5979 Corrected to 'c.kname'.
5980 [Phillip Porch <root@theporch.com>]
5982 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5983 a STACK of email addresses from a certificate or request, these look
5984 in the subject name and the subject alternative name extensions and
5985 omit any duplicate addresses.
5988 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5989 This makes DSA verification about 2 % faster.
5992 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5993 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5994 plus overhead for 1024 bit moduli).
5995 This makes exponentiations about 0.5 % faster for 1024 bit
5996 exponents (as measured by "openssl speed rsa2048").
5999 *) Rename memory handling macros to avoid conflicts with other
6001 Malloc => OPENSSL_malloc
6002 Malloc_locked => OPENSSL_malloc_locked
6003 Realloc => OPENSSL_realloc
6004 Free => OPENSSL_free
6007 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6008 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6011 *) CygWin32 support.
6012 [John Jarvie <jjarvie@newsguy.com>]
6014 *) The type-safe stack code has been rejigged. It is now only compiled
6015 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6016 by default all type-specific stack functions are "#define"d back to
6017 standard stack functions. This results in more streamlined output
6018 but retains the type-safety checking possibilities of the original
6022 *) The STACK code has been cleaned up, and certain type declarations
6023 that didn't make a lot of sense have been brought in line. This has
6024 also involved a cleanup of sorts in safestack.h to more correctly
6025 map type-safe stack functions onto their plain stack counterparts.
6026 This work has also resulted in a variety of "const"ifications of
6027 lots of the code, especially "_cmp" operations which should normally
6028 be prototyped with "const" parameters anyway.
6031 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6032 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6033 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6034 where all of 'md' is used each time the PRNG is used, but 'state'
6035 is used only indexed by a cyclic counter. As entropy may not be
6036 well distributed from the beginning, 'md' is important as a
6037 chaining variable. However, the output function chains only half
6038 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6039 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6040 in all of 'state' being rewritten, with the new values depending
6041 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6044 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6045 the handshake is continued after ssl_verify_cert_chain();
6046 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6047 can lead to 'unexplainable' connection aborts later.
6048 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6050 *) Major EVP API cipher revision.
6051 Add hooks for extra EVP features. This allows various cipher
6052 parameters to be set in the EVP interface. Support added for variable
6053 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6054 setting of RC2 and RC5 parameters.
6056 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6059 Remove lots of duplicated code from the EVP library. For example *every*
6060 cipher init() function handles the 'iv' in the same way according to the
6061 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6062 for CFB and OFB modes they zero ctx->num.
6064 New functionality allows removal of S/MIME code RC2 hack.
6066 Most of the routines have the same form and so can be declared in terms
6069 By shifting this to the top level EVP_CipherInit() it can be removed from
6070 all individual ciphers. If the cipher wants to handle IVs or keys
6071 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6074 Change lots of functions like EVP_EncryptUpdate() to now return a
6075 value: although software versions of the algorithms cannot fail
6076 any installed hardware versions can.
6079 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6080 this option is set, tolerate broken clients that send the negotiated
6081 protocol version number instead of the requested protocol version
6085 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6086 i.e. non-zero for export ciphersuites, zero otherwise.
6087 Previous versions had this flag inverted, inconsistent with
6088 rsa_tmp_cb (..._TMP_RSA_CB).
6089 [Bodo Moeller; problem reported by Amit Chopra]
6091 *) Add missing DSA library text string. Work around for some IIS
6092 key files with invalid SEQUENCE encoding.
6095 *) Add a document (doc/standards.txt) that list all kinds of standards
6096 and so on that are implemented in OpenSSL.
6099 *) Enhance c_rehash script. Old version would mishandle certificates
6100 with the same subject name hash and wouldn't handle CRLs at all.
6101 Added -fingerprint option to crl utility, to support new c_rehash
6105 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6108 *) Fix for SSL server purpose checking. Server checking was
6109 rejecting certificates which had extended key usage present
6110 but no ssl client purpose.
6111 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6113 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6114 is a little unclear about how a blank password is handled.
6115 Since the password in encoded as a BMPString with terminating
6116 double NULL a zero length password would end up as just the
6117 double NULL. However no password at all is different and is
6118 handled differently in the PKCS#12 key generation code. NS
6119 treats a blank password as zero length. MSIE treats it as no
6120 password on export: but it will try both on import. We now do
6121 the same: PKCS12_parse() tries zero length and no password if
6122 the password is set to "" or NULL (NULL is now a valid password:
6123 it wasn't before) as does the pkcs12 application.
6126 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6127 perror when PEM_read_bio_X509_REQ fails, the error message must
6128 be obtained from the error queue.
6131 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6132 it in ERR_remove_state if appropriate, and change ERR_get_state
6133 accordingly to avoid race conditions (this is necessary because
6134 thread_hash is no longer constant once set).
6137 *) Bugfix for linux-elf makefile.one.
6140 *) RSA_get_default_method() will now cause a default
6141 RSA_METHOD to be chosen if one doesn't exist already.
6142 Previously this was only set during a call to RSA_new()
6143 or RSA_new_method(NULL) meaning it was possible for
6144 RSA_get_default_method() to return NULL.
6147 *) Added native name translation to the existing DSO code
6148 that will convert (if the flag to do so is set) filenames
6149 that are sufficiently small and have no path information
6150 into a canonical native form. Eg. "blah" converted to
6151 "libblah.so" or "blah.dll" etc.
6154 *) New function ERR_error_string_n(e, buf, len) which is like
6155 ERR_error_string(e, buf), but writes at most 'len' bytes
6156 including the 0 terminator. For ERR_error_string_n, 'buf'
6158 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6160 *) CONF library reworked to become more general. A new CONF
6161 configuration file reader "class" is implemented as well as a
6162 new functions (NCONF_*, for "New CONF") to handle it. The now
6163 old CONF_* functions are still there, but are reimplemented to
6164 work in terms of the new functions. Also, a set of functions
6165 to handle the internal storage of the configuration data is
6166 provided to make it easier to write new configuration file
6167 reader "classes" (I can definitely see something reading a
6168 configuration file in XML format, for example), called _CONF_*,
6169 or "the configuration storage API"...
6171 The new configuration file reading functions are:
6173 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6174 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6176 NCONF_default, NCONF_WIN32
6178 NCONF_dump_fp, NCONF_dump_bio
6180 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6181 NCONF_new creates a new CONF object. This works in the same way
6182 as other interfaces in OpenSSL, like the BIO interface.
6183 NCONF_dump_* dump the internal storage of the configuration file,
6184 which is useful for debugging. All other functions take the same
6185 arguments as the old CONF_* functions wth the exception of the
6186 first that must be a `CONF *' instead of a `LHASH *'.
6188 To make it easer to use the new classes with the old CONF_* functions,
6189 the function CONF_set_default_method is provided.
6192 *) Add '-tls1' option to 'openssl ciphers', which was already
6193 mentioned in the documentation but had not been implemented.
6194 (This option is not yet really useful because even the additional
6195 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6198 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6199 OpenSSL-based applications) load shared libraries and bind to
6200 them in a portable way.
6201 [Geoff Thorpe, with contributions from Richard Levitte]
6203 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6205 *) Make sure _lrotl and _lrotr are only used with MSVC.
6207 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6208 (the default implementation of RAND_status).
6210 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6211 to '-clrext' (= clear extensions), as intended and documented.
6212 [Bodo Moeller; inconsistency pointed out by Michael Attili
6215 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6216 was larger than the MD block size.
6217 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6219 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6220 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6221 using the passed key: if the passed key was a private key the result
6222 of X509_print(), for example, would be to print out all the private key
6226 *) des_quad_cksum() byte order bug fix.
6227 [Ulf Möller, using the problem description in krb4-0.9.7, where
6228 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6230 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6232 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6234 *) For easily testing in shell scripts whether some command
6235 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6236 returns with exit code 0 iff no command of the given name is available.
6237 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6238 the output goes to stdout and nothing is printed to stderr.
6239 Additional arguments are always ignored.
6241 Since for each cipher there is a command of the same name,
6242 the 'no-cipher' compilation switches can be tested this way.
6244 ('openssl no-XXX' is not able to detect pseudo-commands such
6245 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6248 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6251 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6252 is set; it will be thrown away anyway because each handshake creates
6254 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6255 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6256 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6257 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6260 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6261 'Q' and 'R' lose their special meanings (quit/renegotiate).
6262 This is part of what -quiet does; unlike -quiet, -ign_eof
6263 does not suppress any output.
6266 *) Add compatibility options to the purpose and trust code. The
6267 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6268 accepts a certificate or CA, this was the previous behaviour,
6269 with all the associated security issues.
6271 X509_TRUST_COMPAT is the old trust behaviour: only and
6272 automatically trust self signed roots in certificate store. A
6273 new trust setting X509_TRUST_DEFAULT is used to specify that
6274 a purpose has no associated trust setting and it should instead
6275 use the value in the default purpose.
6278 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6279 and fix a memory leak.
6282 *) In util/mkerr.pl (which implements 'make errors'), preserve
6283 reason strings from the previous version of the .c file, as
6284 the default to have only downcase letters (and digits) in
6285 automatically generated reasons codes is not always appropriate.
6288 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6289 using strerror. Previously, ERR_reason_error_string() returned
6290 library names as reason strings for SYSerr; but SYSerr is a special
6291 case where small numbers are errno values, not library numbers.
6294 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6295 converts DSA parameters into DH parameters. (When creating parameters,
6296 DSA_generate_parameters is used.)
6299 *) Include 'length' (recommended exponent length) in C code generated
6300 by 'openssl dhparam -C'.
6303 *) The second argument to set_label in perlasm was already being used
6304 so couldn't be used as a "file scope" flag. Moved to third argument
6308 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6309 instead of RAND_bytes for encryption IVs and salts.
6312 *) Include RAND_status() into RAND_METHOD instead of implementing
6313 it only for md_rand.c Otherwise replacing the PRNG by calling
6314 RAND_set_rand_method would be impossible.
6317 *) Don't let DSA_generate_key() enter an infinite loop if the random
6318 number generation fails.
6321 *) New 'rand' application for creating pseudo-random output.
6324 *) Added configuration support for Linux/IA64
6325 [Rolf Haberrecker <rolf@suse.de>]
6327 *) Assembler module support for Mingw32.
6330 *) Shared library support for HPUX (in shlib/).
6331 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6333 *) Shared library support for Solaris gcc.
6334 [Lutz Behnke <behnke@trustcenter.de>]
6336 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6338 *) PKCS7_encrypt() was adding text MIME headers twice because they
6339 were added manually and by SMIME_crlf_copy().
6342 *) In bntest.c don't call BN_rand with zero bits argument.
6343 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6345 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6346 case was implemented. This caused BN_div_recp() to fail occasionally.
6349 *) Add an optional second argument to the set_label() in the perl
6350 assembly language builder. If this argument exists and is set
6351 to 1 it signals that the assembler should use a symbol whose
6352 scope is the entire file, not just the current function. This
6353 is needed with MASM which uses the format label:: for this scope.
6354 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6356 *) Change the ASN1 types so they are typedefs by default. Before
6357 almost all types were #define'd to ASN1_STRING which was causing
6358 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6362 *) Change names of new functions to the new get1/get0 naming
6363 convention: After 'get1', the caller owns a reference count
6364 and has to call ..._free; 'get0' returns a pointer to some
6365 data structure without incrementing reference counters.
6366 (Some of the existing 'get' functions increment a reference
6367 counter, some don't.)
6368 Similarly, 'set1' and 'add1' functions increase reference
6369 counters or duplicate objects.
6372 *) Allow for the possibility of temp RSA key generation failure:
6373 the code used to assume it always worked and crashed on failure.
6376 *) Fix potential buffer overrun problem in BIO_printf().
6377 [Ulf Möller, using public domain code by Patrick Powell; problem
6378 pointed out by David Sacerdote <das33@cornell.edu>]
6380 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6381 RAND_egd() and RAND_status(). In the command line application,
6382 the EGD socket can be specified like a seed file using RANDFILE
6386 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6387 Some CAs (e.g. Verisign) distribute certificates in this form.
6390 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6391 list to exclude them. This means that no special compilation option
6392 is needed to use anonymous DH: it just needs to be included in the
6396 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6397 EVP_MD_type. The old functionality is available in a new macro called
6398 EVP_MD_md(). Change code that uses it and update docs.
6401 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6402 where the 'void *' argument is replaced by a function pointer argument.
6403 Previously 'void *' was abused to point to functions, which works on
6404 many platforms, but is not correct. As these functions are usually
6405 called by macros defined in OpenSSL header files, most source code
6406 should work without changes.
6409 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6410 sections with information on -D... compiler switches used for
6411 compiling the library so that applications can see them. To enable
6412 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6413 must be defined. E.g.,
6414 #define OPENSSL_ALGORITHM_DEFINES
6415 #include <openssl/opensslconf.h>
6416 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6417 [Richard Levitte, Ulf and Bodo Möller]
6419 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6423 *) Change the 'other' type in certificate aux info to a STACK_OF
6424 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6425 the required ASN1 format: arbitrary types determined by an OID.
6428 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6429 argument to 'req'. This is not because the function is newer or
6430 better than others it just uses the work 'NEW' in the certificate
6431 request header lines. Some software needs this.
6434 *) Reorganise password command line arguments: now passwords can be
6435 obtained from various sources. Delete the PEM_cb function and make
6436 it the default behaviour: i.e. if the callback is NULL and the
6437 usrdata argument is not NULL interpret it as a null terminated pass
6438 phrase. If usrdata and the callback are NULL then the pass phrase
6439 is prompted for as usual.
6442 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6443 the support is automatically enabled. The resulting binaries will
6444 autodetect the card and use it if present.
6445 [Ben Laurie and Compaq Inc.]
6447 *) Work around for Netscape hang bug. This sends certificate request
6448 and server done in one record. Since this is perfectly legal in the
6449 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6450 the bugs/SSLv3 entry for more info.
6453 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6456 *) Add -rand argument to smime and pkcs12 applications and read/write
6460 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6463 *) Add command line password options to the remaining applications.
6466 *) Bug fix for BN_div_recp() for numerators with an even number of
6470 *) More tests in bntest.c, and changed test_bn output.
6473 *) ./config recognizes MacOS X now.
6476 *) Bug fix for BN_div() when the first words of num and divsor are
6477 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6480 *) Add support for various broken PKCS#8 formats, and command line
6481 options to produce them.
6484 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6485 get temporary BIGNUMs from a BN_CTX.
6488 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6492 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6493 include a #define from the old name to the new. The original intent
6494 was that statically linked binaries could for example just call
6495 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6496 link with digests. This never worked becayse SSLeay_add_all_digests()
6497 and SSLeay_add_all_ciphers() were in the same source file so calling
6498 one would link with the other. They are now in separate source files.
6501 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6504 *) Use a less unusual form of the Miller-Rabin primality test (it used
6505 a binary algorithm for exponentiation integrated into the Miller-Rabin
6506 loop, our standard modexp algorithms are faster).
6509 *) Support for the EBCDIC character set completed.
6510 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6512 *) Source code cleanups: use const where appropriate, eliminate casts,
6513 use void * instead of char * in lhash.
6516 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6517 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6518 this the server could overwrite ephemeral keys that the client
6522 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6523 using 50 iterations of the Rabin-Miller test.
6525 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6526 iterations of the Rabin-Miller test as required by the appendix
6527 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6528 As BN_is_prime_fasttest includes trial division, DSA parameter
6529 generation becomes much faster.
6531 This implies a change for the callback functions in DSA_is_prime
6532 and DSA_generate_parameters: The callback function is called once
6533 for each positive witness in the Rabin-Miller test, not just
6534 occasionally in the inner loop; and the parameters to the
6535 callback function now provide an iteration count for the outer
6536 loop rather than for the current invocation of the inner loop.
6537 DSA_generate_parameters additionally can call the callback
6538 function with an 'iteration count' of -1, meaning that a
6539 candidate has passed the trial division test (when q is generated
6540 from an application-provided seed, trial division is skipped).
6543 *) New function BN_is_prime_fasttest that optionally does trial
6544 division before starting the Rabin-Miller test and has
6545 an additional BN_CTX * argument (whereas BN_is_prime always
6546 has to allocate at least one BN_CTX).
6547 'callback(1, -1, cb_arg)' is called when a number has passed the
6548 trial division stage.
6551 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6555 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6558 *) New function BN_pseudo_rand().
6561 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6562 bignum version of BN_from_montgomery() with the working code from
6563 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6567 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6568 made it impossible to use the same SSL_SESSION data structure in
6569 SSL2 clients in multiple threads.
6572 *) The return value of RAND_load_file() no longer counts bytes obtained
6573 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6574 to seed the PRNG (previously an explicit byte count was required).
6575 [Ulf Möller, Bodo Möller]
6577 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6578 used (char *) instead of (void *) and had casts all over the place.
6581 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6584 *) Retain source code compatibility for BN_prime_checks macro:
6585 BN_is_prime(..., BN_prime_checks, ...) now uses
6586 BN_prime_checks_for_size to determine the appropriate number of
6587 Rabin-Miller iterations.
6590 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6591 DH_CHECK_P_NOT_SAFE_PRIME.
6592 (Check if this is true? OpenPGP calls them "strong".)
6595 *) Merge the functionality of "dh" and "gendh" programs into a new program
6596 "dhparam". The old programs are retained for now but will handle DH keys
6597 (instead of parameters) in future.
6600 *) Make the ciphers, s_server and s_client programs check the return values
6601 when a new cipher list is set.
6604 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6605 ciphers. Before when the 56bit ciphers were enabled the sorting was
6608 The syntax for the cipher sorting has been extended to support sorting by
6609 cipher-strength (using the strength_bits hard coded in the tables).
6610 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6612 Fix a bug in the cipher-command parser: when supplying a cipher command
6613 string with an "undefined" symbol (neither command nor alphanumeric
6614 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6615 an error is flagged.
6617 Due to the strength-sorting extension, the code of the
6618 ssl_create_cipher_list() function was completely rearranged. I hope that
6619 the readability was also increased :-)
6620 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6622 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6623 for the first serial number and places 2 in the serial number file. This
6624 avoids problems when the root CA is created with serial number zero and
6625 the first user certificate has the same issuer name and serial number
6629 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6630 the new code. Add documentation for this stuff.
6633 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6634 X509_*() to X509at_*() on the grounds that they don't handle X509
6635 structures and behave in an analagous way to the X509v3 functions:
6636 they shouldn't be called directly but wrapper functions should be used
6639 So we also now have some wrapper functions that call the X509at functions
6640 when passed certificate requests. (TO DO: similar things can be done with
6641 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6642 things. Some of these need some d2i or i2d and print functionality
6643 because they handle more complex structures.)
6646 *) Add missing #ifndefs that caused missing symbols when building libssl
6647 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6648 NO_RSA in ssl/s2*.c.
6649 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6651 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6652 has a return value which indicates the quality of the random data
6653 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6654 error queue. New function RAND_pseudo_bytes() generates output that is
6655 guaranteed to be unique but not unpredictable. RAND_add is like
6656 RAND_seed, but takes an extra argument for an entropy estimate
6657 (RAND_seed always assumes full entropy).
6660 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6661 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6662 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6663 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6664 false-positive rate of at most 2^-80 for random input.
6667 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6670 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6671 in the 0.9.5 release), this returns the chain
6672 from an X509_CTX structure with a dup of the stack and all
6673 the X509 reference counts upped: so the stack will exist
6674 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6677 Also make SSL_SESSION_print() print out the verify return
6681 *) Add manpage for the pkcs12 command. Also change the default
6682 behaviour so MAC iteration counts are used unless the new
6683 -nomaciter option is used. This improves file security and
6684 only older versions of MSIE (4.0 for example) need it.
6687 *) Honor the no-xxx Configure options when creating .DEF files.
6690 *) Add PKCS#10 attributes to field table: challengePassword,
6691 unstructuredName and unstructuredAddress. These are taken from
6692 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6693 international characters are used.
6695 More changes to X509_ATTRIBUTE code: allow the setting of types
6696 based on strings. Remove the 'loc' parameter when adding
6697 attributes because these will be a SET OF encoding which is sorted
6701 *) Initial changes to the 'req' utility to allow request generation
6702 automation. This will allow an application to just generate a template
6703 file containing all the field values and have req construct the
6706 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6707 used all over the place including certificate requests and PKCS#7
6708 structures. They are currently handled manually where necessary with
6709 some primitive wrappers for PKCS#7. The new functions behave in a
6710 manner analogous to the X509 extension functions: they allow
6711 attributes to be looked up by NID and added.
6713 Later something similar to the X509V3 code would be desirable to
6714 automatically handle the encoding, decoding and printing of the
6715 more complex types. The string types like challengePassword can
6716 be handled by the string table functions.
6718 Also modified the multi byte string table handling. Now there is
6719 a 'global mask' which masks out certain types. The table itself
6720 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6721 is useful when for example there is only one permissible type
6722 (as in countryName) and using the mask might result in no valid
6726 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6727 SSL_get_peer_finished to allow applications to obtain the latest
6728 Finished messages sent to the peer or expected from the peer,
6729 respectively. (SSL_get_peer_finished is usually the Finished message
6730 actually received from the peer, otherwise the protocol will be aborted.)
6732 As the Finished message are message digests of the complete handshake
6733 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6734 be used for external authentication procedures when the authentication
6735 provided by SSL/TLS is not desired or is not enough.
6738 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6739 the host supports BWX extension and if Compaq C is present on the
6740 $PATH. Just exploiting of the BWX extension results in 20-30%
6741 performance kick for some algorithms, e.g. DES and RC4 to mention
6742 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6746 *) Add support for MS "fast SGC". This is arguably a violation of the
6747 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6748 weak crypto and after checking the certificate is SGC a second one
6749 with strong crypto. MS SGC stops the first handshake after receiving
6750 the server certificate message and sends a second client hello. Since
6751 a server will typically do all the time consuming operations before
6752 expecting any further messages from the client (server key exchange
6753 is the most expensive) there is little difference between the two.
6755 To get OpenSSL to support MS SGC we have to permit a second client
6756 hello message after we have sent server done. In addition we have to
6757 reset the MAC if we do get this second client hello.
6760 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6761 if a DER encoded private key is RSA or DSA traditional format. Changed
6762 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6763 format DER encoded private key. Newer code should use PKCS#8 format which
6764 has the key type encoded in the ASN1 structure. Added DER private key
6765 support to pkcs8 application.
6768 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6769 ciphersuites has been selected (as required by the SSL 3/TLS 1
6770 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6771 is set, we interpret this as a request to violate the specification
6772 (the worst that can happen is a handshake failure, and 'correct'
6773 behaviour would result in a handshake failure anyway).
6776 *) In SSL_CTX_add_session, take into account that there might be multiple
6777 SSL_SESSION structures with the same session ID (e.g. when two threads
6778 concurrently obtain them from an external cache).
6779 The internal cache can handle only one SSL_SESSION with a given ID,
6780 so if there's a conflict, we now throw out the old one to achieve
6784 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6785 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6786 some routines that use cipher OIDs: some ciphers do not have OIDs
6787 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6791 *) Simplify the trust setting structure and code. Now we just have
6792 two sequences of OIDs for trusted and rejected settings. These will
6793 typically have values the same as the extended key usage extension
6794 and any application specific purposes.
6796 The trust checking code now has a default behaviour: it will just
6797 check for an object with the same NID as the passed id. Functions can
6798 be provided to override either the default behaviour or the behaviour
6799 for a given id. SSL client, server and email already have functions
6800 in place for compatibility: they check the NID and also return "trusted"
6801 if the certificate is self signed.
6804 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6805 traditional format into an EVP_PKEY structure.
6808 *) Add a password callback function PEM_cb() which either prompts for
6809 a password if usr_data is NULL or otherwise assumes it is a null
6810 terminated password. Allow passwords to be passed on command line
6811 environment or config files in a few more utilities.
6814 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6815 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6816 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6817 Update documentation.
6820 *) Support for ASN1 "NULL" type. This could be handled before by using
6821 ASN1_TYPE but there wasn't any function that would try to read a NULL
6822 and produce an error if it couldn't. For compatibility we also have
6823 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6824 don't allocate anything because they don't need to.
6827 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6829 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6831 *) Rebuild of the memory allocation routines used by OpenSSL code and
6832 possibly others as well. The purpose is to make an interface that
6833 provide hooks so anyone can build a separate set of allocation and
6834 deallocation routines to be used by OpenSSL, for example memory
6835 pool implementations, or something else, which was previously hard
6836 since Malloc(), Realloc() and Free() were defined as macros having
6837 the values malloc, realloc and free, respectively (except for Win32
6838 compilations). The same is provided for memory debugging code.
6839 OpenSSL already comes with functionality to find memory leaks, but
6840 this gives people a chance to debug other memory problems.
6842 With these changes, a new set of functions and macros have appeared:
6844 CRYPTO_set_mem_debug_functions() [F]
6845 CRYPTO_get_mem_debug_functions() [F]
6846 CRYPTO_dbg_set_options() [F]
6847 CRYPTO_dbg_get_options() [F]
6848 CRYPTO_malloc_debug_init() [M]
6850 The memory debug functions are NULL by default, unless the library
6851 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6852 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6853 gives the standard debugging functions that come with OpenSSL) or
6854 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6855 provided by the library user) must be used. When the standard
6856 debugging functions are used, CRYPTO_dbg_set_options can be used to
6857 request additional information:
6858 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6859 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6861 Also, things like CRYPTO_set_mem_functions will always give the
6862 expected result (the new set of functions is used for allocation
6863 and deallocation) at all times, regardless of platform and compiler
6866 To finish it up, some functions that were never use in any other
6867 way than through macros have a new API and new semantic:
6870 CRYPTO_dbg_realloc()
6873 All macros of value have retained their old syntax.
6874 [Richard Levitte and Bodo Moeller]
6876 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6877 ordering of SMIMECapabilities wasn't in "strength order" and there
6878 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6882 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6883 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6884 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6886 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6887 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6888 functionality to handle multipart/signed properly) and a utility
6889 called 'smime' to call all this stuff. This is based on code I
6890 originally wrote for Celo who have kindly allowed it to be
6891 included in OpenSSL.
6894 *) Add variants des_set_key_checked and des_set_key_unchecked of
6895 des_set_key (aka des_key_sched). Global variable des_check_key
6896 decides which of these is called by des_set_key; this way
6897 des_check_key behaves as it always did, but applications and
6898 the library itself, which was buggy for des_check_key == 1,
6899 have a cleaner way to pick the version they need.
6902 *) New function PKCS12_newpass() which changes the password of a
6906 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6907 dynamic mix. In both cases the ids can be used as an index into the
6908 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6909 functions so they accept a list of the field values and the
6910 application doesn't need to directly manipulate the X509_TRUST
6914 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6918 *) Modify the way the V3 extension code looks up extensions. This now
6919 works in a similar way to the object code: we have some "standard"
6920 extensions in a static table which is searched with OBJ_bsearch()
6921 and the application can add dynamic ones if needed. The file
6922 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6923 updated whenever a new extension is added to the core code and kept
6924 in ext_nid order. There is a simple program 'tabtest.c' which checks
6925 this. New extensions are not added too often so this file can readily
6926 be maintained manually.
6928 There are two big advantages in doing things this way. The extensions
6929 can be looked up immediately and no longer need to be "added" using
6930 X509V3_add_standard_extensions(): this function now does nothing.
6931 [Side note: I get *lots* of email saying the extension code doesn't
6932 work because people forget to call this function]
6933 Also no dynamic allocation is done unless new extensions are added:
6934 so if we don't add custom extensions there is no need to call
6935 X509V3_EXT_cleanup().
6938 *) Modify enc utility's salting as follows: make salting the default. Add a
6939 magic header, so unsalted files fail gracefully instead of just decrypting
6940 to garbage. This is because not salting is a big security hole, so people
6941 should be discouraged from doing it.
6944 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6945 digest to be passed on the command line but it only used this
6946 parameter when signing a certificate. Modified so all relevant
6947 operations are affected by the digest parameter including the
6948 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6949 DSA key was used because it didn't fix the digest.
6952 *) Initial certificate chain verify code. Currently tests the untrusted
6953 certificates for consistency with the verify purpose (which is set
6954 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6956 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6957 this is because it will reject chains with invalid extensions whereas
6958 every previous version of OpenSSL and SSLeay made no checks at all.
6960 Trust code: checks the root CA for the relevant trust settings. Trust
6961 settings have an initial value consistent with the verify purpose: e.g.
6962 if the verify purpose is for SSL client use it expects the CA to be
6963 trusted for SSL client use. However the default value can be changed to
6964 permit custom trust settings: one example of this would be to only trust
6965 certificates from a specific "secure" set of CAs.
6967 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6968 which should be used for version portability: especially since the
6969 verify structure is likely to change more often now.
6971 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6972 to set them. If not set then assume SSL clients will verify SSL servers
6975 Two new options to the verify program: -untrusted allows a set of
6976 untrusted certificates to be passed in and -purpose which sets the
6977 intended purpose of the certificate. If a purpose is set then the
6978 new chain verify code is used to check extension consistency.
6981 *) Support for the authority information access extension.
6984 *) Modify RSA and DSA PEM read routines to transparently handle
6985 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6986 public keys in a format compatible with certificate
6987 SubjectPublicKeyInfo structures. Unfortunately there were already
6988 functions called *_PublicKey_* which used various odd formats so
6989 these are retained for compatibility: however the DSA variants were
6990 never in a public release so they have been deleted. Changed dsa/rsa
6991 utilities to handle the new format: note no releases ever handled public
6992 keys so we should be OK.
6994 The primary motivation for this change is to avoid the same fiasco
6995 that dogs private keys: there are several incompatible private key
6996 formats some of which are standard and some OpenSSL specific and
6997 require various evil hacks to allow partial transparent handling and
6998 even then it doesn't work with DER formats. Given the option anything
6999 other than PKCS#8 should be dumped: but the other formats have to
7000 stay in the name of compatibility.
7002 With public keys and the benefit of hindsight one standard format
7003 is used which works with EVP_PKEY, RSA or DSA structures: though
7004 it clearly returns an error if you try to read the wrong kind of key.
7006 Added a -pubkey option to the 'x509' utility to output the public key.
7007 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7008 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7009 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7010 that do the same as the EVP_PKEY_assign_*() except they up the
7011 reference count of the added key (they don't "swallow" the
7015 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7016 CRLs would fail if the file contained no certificates or no CRLs:
7017 added a new function to read in both types and return the number
7018 read: this means that if none are read it will be an error. The
7019 DER versions of the certificate and CRL reader would always fail
7020 because it isn't possible to mix certificates and CRLs in DER format
7021 without choking one or the other routine. Changed this to just read
7022 a certificate: this is the best we can do. Also modified the code
7023 in apps/verify.c to take notice of return codes: it was previously
7024 attempting to read in certificates from NULL pointers and ignoring
7025 any errors: this is one reason why the cert and CRL reader seemed
7026 to work. It doesn't check return codes from the default certificate
7027 routines: these may well fail if the certificates aren't installed.
7030 *) Code to support otherName option in GeneralName.
7033 *) First update to verify code. Change the verify utility
7034 so it warns if it is passed a self signed certificate:
7035 for consistency with the normal behaviour. X509_verify
7036 has been modified to it will now verify a self signed
7037 certificate if *exactly* the same certificate appears
7038 in the store: it was previously impossible to trust a
7039 single self signed certificate. This means that:
7040 openssl verify ss.pem
7041 now gives a warning about a self signed certificate but
7042 openssl verify -CAfile ss.pem ss.pem
7046 *) For servers, store verify_result in SSL_SESSION data structure
7047 (and add it to external session representation).
7048 This is needed when client certificate verifications fails,
7049 but an application-provided verification callback (set by
7050 SSL_CTX_set_cert_verify_callback) allows accepting the session
7051 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7052 but returns 1): When the session is reused, we have to set
7053 ssl->verify_result to the appropriate error code to avoid
7055 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7057 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7058 case in PKCS7_dataInit() where the signed PKCS7 structure
7059 didn't contain any existing data because it was being created.
7060 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7062 *) Add a salt to the key derivation routines in enc.c. This
7063 forms the first 8 bytes of the encrypted file. Also add a
7064 -S option to allow a salt to be input on the command line.
7067 *) New function X509_cmp(). Oddly enough there wasn't a function
7068 to compare two certificates. We do this by working out the SHA1
7069 hash and comparing that. X509_cmp() will be needed by the trust
7073 *) SSL_get1_session() is like SSL_get_session(), but increments
7074 the reference count in the SSL_SESSION returned.
7075 [Geoff Thorpe <geoff@eu.c2.net>]
7077 *) Fix for 'req': it was adding a null to request attributes.
7078 Also change the X509_LOOKUP and X509_INFO code to handle
7079 certificate auxiliary information.
7082 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7086 *) Add the possibility to add extra information to the memory leak
7087 detecting output, to form tracebacks, showing from where each
7088 allocation was originated: CRYPTO_push_info("constant string") adds
7089 the string plus current file name and line number to a per-thread
7090 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7091 is like calling CYRPTO_pop_info() until the stack is empty.
7092 Also updated memory leak detection code to be multi-thread-safe.
7095 *) Add options -text and -noout to pkcs7 utility and delete the
7096 encryption options which never did anything. Update docs.
7099 *) Add options to some of the utilities to allow the pass phrase
7100 to be included on either the command line (not recommended on
7101 OSes like Unix) or read from the environment. Update the
7102 manpages and fix a few bugs.
7105 *) Add a few manpages for some of the openssl commands.
7108 *) Fix the -revoke option in ca. It was freeing up memory twice,
7109 leaking and not finding already revoked certificates.
7112 *) Extensive changes to support certificate auxiliary information.
7113 This involves the use of X509_CERT_AUX structure and X509_AUX
7114 functions. An X509_AUX function such as PEM_read_X509_AUX()
7115 can still read in a certificate file in the usual way but it
7116 will also read in any additional "auxiliary information". By
7117 doing things this way a fair degree of compatibility can be
7118 retained: existing certificates can have this information added
7119 using the new 'x509' options.
7121 Current auxiliary information includes an "alias" and some trust
7122 settings. The trust settings will ultimately be used in enhanced
7123 certificate chain verification routines: currently a certificate
7124 can only be trusted if it is self signed and then it is trusted
7128 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7129 The problem was that one of the replacement routines had not been working
7130 since SSLeay releases. For now the offending routine has been replaced
7131 with non-optimised assembler. Even so, this now gives around 95%
7132 performance improvement for 1024 bit RSA signs.
7135 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7136 handling. Most clients have the effective key size in bits equal to
7137 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7138 A few however don't do this and instead use the size of the decrypted key
7139 to determine the RC2 key length and the AlgorithmIdentifier to determine
7140 the effective key length. In this case the effective key length can still
7141 be 40 bits but the key length can be 168 bits for example. This is fixed
7142 by manually forcing an RC2 key into the EVP_PKEY structure because the
7143 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7144 the key length and effective key length are equal.
7147 *) Add a bunch of functions that should simplify the creation of
7148 X509_NAME structures. Now you should be able to do:
7149 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7150 and have it automatically work out the correct field type and fill in
7151 the structures. The more adventurous can try:
7152 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7153 and it will (hopefully) work out the correct multibyte encoding.
7156 *) Change the 'req' utility to use the new field handling and multibyte
7157 copy routines. Before the DN field creation was handled in an ad hoc
7158 way in req, ca, and x509 which was rather broken and didn't support
7159 BMPStrings or UTF8Strings. Since some software doesn't implement
7160 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7161 using the dirstring_type option. See the new comment in the default
7162 openssl.cnf for more info.
7165 *) Make crypto/rand/md_rand.c more robust:
7166 - Assure unique random numbers after fork().
7167 - Make sure that concurrent threads access the global counter and
7168 md serializably so that we never lose entropy in them
7169 or use exactly the same state in multiple threads.
7170 Access to the large state is not always serializable because
7171 the additional locking could be a performance killer, and
7172 md should be large enough anyway.
7175 *) New file apps/app_rand.c with commonly needed functionality
7176 for handling the random seed file.
7178 Use the random seed file in some applications that previously did not:
7180 dsaparam -genkey (which also ignored its '-rand' option),
7183 x509 (when signing).
7184 Except on systems with /dev/urandom, it is crucial to have a random
7185 seed file at least for key creation, DSA signing, and for DH exchanges;
7186 for RSA signatures we could do without one.
7188 gendh and gendsa (unlike genrsa) used to read only the first byte
7189 of each file listed in the '-rand' option. The function as previously
7190 found in genrsa is now in app_rand.c and is used by all programs
7191 that support '-rand'.
7194 *) In RAND_write_file, use mode 0600 for creating files;
7195 don't just chmod when it may be too late.
7198 *) Report an error from X509_STORE_load_locations
7199 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7202 *) New function ASN1_mbstring_copy() this copies a string in either
7203 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7204 into an ASN1_STRING type. A mask of permissible types is passed
7205 and it chooses the "minimal" type to use or an error if not type
7209 *) Add function equivalents to the various macros in asn1.h. The old
7210 macros are retained with an M_ prefix. Code inside the library can
7211 use the M_ macros. External code (including the openssl utility)
7212 should *NOT* in order to be "shared library friendly".
7215 *) Add various functions that can check a certificate's extensions
7216 to see if it usable for various purposes such as SSL client,
7217 server or S/MIME and CAs of these types. This is currently
7218 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7219 verification. Also added a -purpose flag to x509 utility to
7220 print out all the purposes.
7223 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7227 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7228 for, obtain and decode and extension and obtain its critical flag.
7229 This allows all the necessary extension code to be handled in a
7230 single function call.
7233 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7234 platforms. See crypto/rc4/rc4_enc.c for further details.
7237 *) New -noout option to asn1parse. This causes no output to be produced
7238 its main use is when combined with -strparse and -out to extract data
7239 from a file (which may not be in ASN.1 format).
7242 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7243 when producing the local key id.
7244 [Richard Levitte <levitte@stacken.kth.se>]
7246 *) New option -dhparam in s_server. This allows a DH parameter file to be
7247 stated explicitly. If it is not stated then it tries the first server
7248 certificate file. The previous behaviour hard coded the filename
7252 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7253 a public key to be input or output. For example:
7254 openssl rsa -in key.pem -pubout -out pubkey.pem
7255 Also added necessary DSA public key functions to handle this.
7258 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7259 in the message. This was handled by allowing
7260 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7261 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7263 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7264 to the end of the strings whereas this didn't. This would cause problems
7265 if strings read with d2i_ASN1_bytes() were later modified.
7266 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7268 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7269 data and it contains EOF it will end up returning an error. This is
7270 caused by input 46 bytes long. The cause is due to the way base64
7271 BIOs find the start of base64 encoded data. They do this by trying a
7272 trial decode on each line until they find one that works. When they
7273 do a flag is set and it starts again knowing it can pass all the
7274 data directly through the decoder. Unfortunately it doesn't reset
7275 the context it uses. This means that if EOF is reached an attempt
7276 is made to pass two EOFs through the context and this causes the
7277 resulting error. This can also cause other problems as well. As is
7278 usual with these problems it takes *ages* to find and the fix is
7279 trivial: move one line.
7280 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7282 *) Ugly workaround to get s_client and s_server working under Windows. The
7283 old code wouldn't work because it needed to select() on sockets and the
7284 tty (for keypresses and to see if data could be written). Win32 only
7285 supports select() on sockets so we select() with a 1s timeout on the
7286 sockets and then see if any characters are waiting to be read, if none
7287 are present then we retry, we also assume we can always write data to
7288 the tty. This isn't nice because the code then blocks until we've
7289 received a complete line of data and it is effectively polling the
7290 keyboard at 1s intervals: however it's quite a bit better than not
7291 working at all :-) A dedicated Windows application might handle this
7292 with an event loop for example.
7295 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7296 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7297 will be called when RSA_sign() and RSA_verify() are used. This is useful
7298 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7299 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7300 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7301 This necessitated the support of an extra signature type NID_md5_sha1
7302 for SSL signatures and modifications to the SSL library to use it instead
7303 of calling RSA_public_decrypt() and RSA_private_encrypt().
7306 *) Add new -verify -CAfile and -CApath options to the crl program, these
7307 will lookup a CRL issuers certificate and verify the signature in a
7308 similar way to the verify program. Tidy up the crl program so it
7309 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7310 less strict. It will now permit CRL extensions even if it is not
7311 a V2 CRL: this will allow it to tolerate some broken CRLs.
7314 *) Initialize all non-automatic variables each time one of the openssl
7315 sub-programs is started (this is necessary as they may be started
7316 multiple times from the "OpenSSL>" prompt).
7317 [Lennart Bang, Bodo Moeller]
7319 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7320 removing all other RSA functionality (this is what NO_RSA does). This
7321 is so (for example) those in the US can disable those operations covered
7322 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7326 *) Non-copying interface to BIO pairs.
7327 (still largely untested)
7330 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7331 ASCII string. This was handled independently in various places before.
7334 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7335 UTF8 strings a character at a time.
7338 *) Use client_version from client hello to select the protocol
7339 (s23_srvr.c) and for RSA client key exchange verification
7340 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7343 *) Add various utility functions to handle SPKACs, these were previously
7344 handled by poking round in the structure internals. Added new function
7345 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7346 print, verify and generate SPKACs. Based on an original idea from
7347 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7350 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7353 *) Allow the config file extension section to be overwritten on the
7354 command line. Based on an original idea from Massimiliano Pala
7355 <madwolf@comune.modena.it>. The new option is called -extensions
7356 and can be applied to ca, req and x509. Also -reqexts to override
7357 the request extensions in req and -crlexts to override the crl extensions
7361 *) Add new feature to the SPKAC handling in ca. Now you can include
7362 the same field multiple times by preceding it by "XXXX." for example:
7365 this is the same syntax as used in the req config file.
7368 *) Allow certificate extensions to be added to certificate requests. These
7369 are specified in a 'req_extensions' option of the req section of the
7370 config file. They can be printed out with the -text option to req but
7371 are otherwise ignored at present.
7374 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7375 data read consists of only the final block it would not decrypted because
7376 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7377 A misplaced 'break' also meant the decrypted final block might not be
7378 copied until the next read.
7381 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7382 a few extra parameters to the DH structure: these will be useful if
7383 for example we want the value of 'q' or implement X9.42 DH.
7386 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7387 provides hooks that allow the default DSA functions or functions on a
7388 "per key" basis to be replaced. This allows hardware acceleration and
7389 hardware key storage to be handled without major modification to the
7390 library. Also added low level modexp hooks and CRYPTO_EX structure and
7391 associated functions.
7394 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7395 as "read only": it can't be written to and the buffer it points to will
7396 not be freed. Reading from a read only BIO is much more efficient than
7397 a normal memory BIO. This was added because there are several times when
7398 an area of memory needs to be read from a BIO. The previous method was
7399 to create a memory BIO and write the data to it, this results in two
7400 copies of the data and an O(n^2) reading algorithm. There is a new
7401 function BIO_new_mem_buf() which creates a read only memory BIO from
7402 an area of memory. Also modified the PKCS#7 routines to use read only
7406 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7407 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7408 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7409 but a retry condition occured while trying to read the rest.
7412 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7413 NID_pkcs7_encrypted by default: this was wrong since this should almost
7414 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7415 the encrypted data type: this is a more sensible place to put it and it
7416 allows the PKCS#12 code to be tidied up that duplicated this
7420 *) Changed obj_dat.pl script so it takes its input and output files on
7421 the command line. This should avoid shell escape redirection problems
7425 *) Initial support for certificate extension requests, these are included
7426 in things like Xenroll certificate requests. Included functions to allow
7427 extensions to be obtained and added.
7430 *) -crlf option to s_client and s_server for sending newlines as
7431 CRLF (as required by many protocols).
7434 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7436 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7437 [Ralf S. Engelschall]
7439 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7440 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7442 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7446 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7447 DH parameters/keys (q is lost during that conversion, but the resulting
7448 DH parameters contain its length).
7450 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7451 much faster than DH_generate_parameters (which creates parameters
7452 where p = 2*q + 1), and also the smaller q makes DH computations
7453 much more efficient (160-bit exponentiation instead of 1024-bit
7454 exponentiation); so this provides a convenient way to support DHE
7455 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7456 utter importance to use
7457 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7459 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7460 when such DH parameters are used, because otherwise small subgroup
7461 attacks may become possible!
7464 *) Avoid memory leak in i2d_DHparams.
7467 *) Allow the -k option to be used more than once in the enc program:
7468 this allows the same encrypted message to be read by multiple recipients.
7471 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7472 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7473 it will always use the numerical form of the OID, even if it has a short
7477 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7478 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7479 otherwise bn_mod_exp was called. In the case of hardware keys for example
7480 no private key components need be present and it might store extra data
7481 in the RSA structure, which cannot be accessed from bn_mod_exp.
7482 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7483 private key operations.
7486 *) Added support for SPARC Linux.
7489 *) pem_password_cb function type incompatibly changed from
7490 typedef int pem_password_cb(char *buf, int size, int rwflag);
7492 ....(char *buf, int size, int rwflag, void *userdata);
7493 so that applications can pass data to their callbacks:
7494 The PEM[_ASN1]_{read,write}... functions and macros now take an
7495 additional void * argument, which is just handed through whenever
7496 the password callback is called.
7497 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7499 New function SSL_CTX_set_default_passwd_cb_userdata.
7501 Compatibility note: As many C implementations push function arguments
7502 onto the stack in reverse order, the new library version is likely to
7503 interoperate with programs that have been compiled with the old
7504 pem_password_cb definition (PEM_whatever takes some data that
7505 happens to be on the stack as its last argument, and the callback
7506 just ignores this garbage); but there is no guarantee whatsoever that
7509 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7510 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7511 problems not only on Windows, but also on some Unix platforms.
7512 To avoid problematic command lines, these definitions are now in an
7513 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7514 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7517 *) MIPS III/IV assembler module is reimplemented.
7520 *) More DES library cleanups: remove references to srand/rand and
7521 delete an unused file.
7524 *) Add support for the the free Netwide assembler (NASM) under Win32,
7525 since not many people have MASM (ml) and it can be hard to obtain.
7526 This is currently experimental but it seems to work OK and pass all
7527 the tests. Check out INSTALL.W32 for info.
7530 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7531 without temporary keys kept an extra copy of the server key,
7532 and connections with temporary keys did not free everything in case
7536 *) New function RSA_check_key and new openssl rsa option -check
7537 for verifying the consistency of RSA keys.
7538 [Ulf Moeller, Bodo Moeller]
7540 *) Various changes to make Win32 compile work:
7541 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7542 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7543 comparison" warnings.
7544 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7547 *) Add a debugging option to PKCS#5 v2 key generation function: when
7548 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7549 derived keys are printed to stderr.
7552 *) Copy the flags in ASN1_STRING_dup().
7553 [Roman E. Pavlov <pre@mo.msk.ru>]
7555 *) The x509 application mishandled signing requests containing DSA
7556 keys when the signing key was also DSA and the parameters didn't match.
7558 It was supposed to omit the parameters when they matched the signing key:
7559 the verifying software was then supposed to automatically use the CA's
7560 parameters if they were absent from the end user certificate.
7562 Omitting parameters is no longer recommended. The test was also
7563 the wrong way round! This was probably due to unusual behaviour in
7564 EVP_cmp_parameters() which returns 1 if the parameters match.
7565 This meant that parameters were omitted when they *didn't* match and
7566 the certificate was useless. Certificates signed with 'ca' didn't have
7568 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7570 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7571 The interface is as follows:
7572 Applications can use
7573 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7574 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7575 "off" is now the default.
7576 The library internally uses
7577 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7578 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7579 to disable memory-checking temporarily.
7581 Some inconsistent states that previously were possible (and were
7582 even the default) are now avoided.
7584 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7585 with each memory chunk allocated; this is occasionally more helpful
7586 than just having a counter.
7588 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7590 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7594 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7595 which largely parallels "options", but is for changing API behaviour,
7596 whereas "options" are about protocol behaviour.
7597 Initial "mode" flags are:
7599 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7600 a single record has been written.
7601 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7602 retries use the same buffer location.
7603 (But all of the contents must be
7607 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7610 *) Fix problems with no-hmac etc.
7611 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7613 *) New functions RSA_get_default_method(), RSA_set_method() and
7614 RSA_get_method(). These allows replacement of RSA_METHODs without having
7615 to mess around with the internals of an RSA structure.
7618 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7619 Also really enable memory leak checks in openssl.c and in some
7621 [Chad C. Mulligan, Bodo Moeller]
7623 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7624 up the length of negative integers. This has now been simplified to just
7625 store the length when it is first determined and use it later, rather
7626 than trying to keep track of where data is copied and updating it to
7628 [Steve Henson, reported by Brien Wheeler
7629 <bwheeler@authentica-security.com>]
7631 *) Add a new function PKCS7_signatureVerify. This allows the verification
7632 of a PKCS#7 signature but with the signing certificate passed to the
7633 function itself. This contrasts with PKCS7_dataVerify which assumes the
7634 certificate is present in the PKCS#7 structure. This isn't always the
7635 case: certificates can be omitted from a PKCS#7 structure and be
7636 distributed by "out of band" means (such as a certificate database).
7639 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7640 function prototypes in pem.h, also change util/mkdef.pl to add the
7641 necessary function names.
7644 *) mk1mf.pl (used by Windows builds) did not properly read the
7645 options set by Configure in the top level Makefile, and Configure
7646 was not even able to write more than one option correctly.
7647 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7650 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7651 file to be loaded from a BIO or FILE pointer. The BIO version will
7652 for example allow memory BIOs to contain config info.
7655 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7656 Whoever hopes to achieve shared-library compatibility across versions
7657 must use this, not the compile-time macro.
7658 (Exercise 0.9.4: Which is the minimum library version required by
7660 Note: All this applies only to multi-threaded programs, others don't
7664 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7665 through a BIO pair triggered the default case, i.e.
7666 SSLerr(...,SSL_R_UNKNOWN_STATE).
7669 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7670 can use the SSL library even if none of the specific BIOs is
7674 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7675 for the encoded length.
7676 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7678 *) Add initial documentation of the X509V3 functions.
7681 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7682 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7683 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7684 secure PKCS#8 private key format with a high iteration count.
7687 *) Fix determination of Perl interpreter: A perl or perl5
7688 _directory_ in $PATH was also accepted as the interpreter.
7689 [Ralf S. Engelschall]
7691 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7692 wrong with it but it was very old and did things like calling
7693 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7697 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7698 to use the new extension code.
7701 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7702 with macros. This should make it easier to change their form, add extra
7703 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7707 *) Add to configuration table a new entry that can specify an alternative
7708 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7709 according to Mark Crispin <MRC@Panda.COM>.
7713 *) DES CBC did not update the IV. Weird.
7716 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7717 Changing the behaviour of the former might break existing programs --
7718 where IV updating is needed, des_ncbc_encrypt can be used.
7721 *) When bntest is run from "make test" it drives bc to check its
7722 calculations, as well as internally checking them. If an internal check
7723 fails, it needs to cause bc to give a non-zero result or make test carries
7724 on without noticing the failure. Fixed.
7727 *) DES library cleanups.
7730 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7731 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7732 ciphers. NOTE: although the key derivation function has been verified
7733 against some published test vectors it has not been extensively tested
7734 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7738 *) Instead of "mkdir -p", which is not fully portable, use new
7739 Perl script "util/mkdir-p.pl".
7742 *) Rewrite the way password based encryption (PBE) is handled. It used to
7743 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7744 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7745 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7746 the 'parameter' field of the AlgorithmIdentifier is passed to the
7747 underlying key generation function so it must do its own ASN1 parsing.
7748 This has also changed the EVP_PBE_CipherInit() function which now has a
7749 'parameter' argument instead of literal salt and iteration count values
7750 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7753 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7754 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7755 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7756 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7757 value was just used as a "magic string" and not used directly its
7758 value doesn't matter.
7761 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7765 *) "linux-sparc64" configuration (ultrapenguin).
7766 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7767 "linux-sparc" configuration.
7768 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7770 *) config now generates no-xxx options for missing ciphers.
7773 *) Support the EBCDIC character set (work in progress).
7774 File ebcdic.c not yet included because it has a different license.
7775 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7777 *) Support BS2000/OSD-POSIX.
7778 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7780 *) Make callbacks for key generation use void * instead of char *.
7783 *) Make S/MIME samples compile (not yet tested).
7786 *) Additional typesafe stacks.
7789 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7793 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7795 *) New configuration variant "sco5-gcc".
7797 *) Updated some demos.
7798 [Sean O Riordain, Wade Scholine]
7800 *) Add missing BIO_free at exit of pkcs12 application.
7803 *) Fix memory leak in conf.c.
7806 *) Updates for Win32 to assembler version of MD5.
7809 *) Set #! path to perl in apps/der_chop to where we found it
7810 instead of using a fixed path.
7813 *) SHA library changes for irix64-mips4-cc.
7816 *) Improvements for VMS support.
7820 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7822 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7823 This also avoids the problems with SC4.2 and unpatched SC5.
7824 [Andy Polyakov <appro@fy.chalmers.se>]
7826 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7827 These are required because of the typesafe stack would otherwise break
7828 existing code. If old code used a structure member which used to be STACK
7829 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7830 sk_num or sk_value it would produce an error because the num, data members
7831 are not present in STACK_OF. Now it just produces a warning. sk_set
7832 replaces the old method of assigning a value to sk_value
7833 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7834 that does this will no longer work (and should use sk_set instead) but
7835 this could be regarded as a "questionable" behaviour anyway.
7838 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7839 correctly handle encrypted S/MIME data.
7842 *) Change type of various DES function arguments from des_cblock
7843 (which means, in function argument declarations, pointer to char)
7844 to des_cblock * (meaning pointer to array with 8 char elements),
7845 which allows the compiler to do more typechecking; it was like
7846 that back in SSLeay, but with lots of ugly casts.
7848 Introduce new type const_des_cblock.
7851 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7852 problems: find RecipientInfo structure that matches recipient certificate
7853 and initialise the ASN1 structures properly based on passed cipher.
7856 *) Belatedly make the BN tests actually check the results.
7859 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7860 to and from BNs: it was completely broken. New compilation option
7861 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7862 key elements as negative integers.
7865 *) Reorganize and speed up MD5.
7866 [Andy Polyakov <appro@fy.chalmers.se>]
7869 [Richard Levitte <richard@levitte.org>]
7871 *) New option -out to asn1parse to allow the parsed structure to be
7872 output to a file. This is most useful when combined with the -strparse
7873 option to examine the output of things like OCTET STRINGS.
7876 *) Make SSL library a little more fool-proof by not requiring any longer
7877 that SSL_set_{accept,connect}_state be called before
7878 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7879 in many applications because usually everything *appeared* to work as
7880 intended anyway -- now it really works as intended).
7883 *) Move openssl.cnf out of lib/.
7886 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7887 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7888 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7889 [Ralf S. Engelschall]
7891 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7892 handle PKCS#7 enveloped data properly.
7893 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7895 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7896 copying pointers. The cert_st handling is changed by this in
7897 various ways (and thus what used to be known as ctx->default_cert
7898 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7899 any longer when s->cert does not give us what we need).
7900 ssl_cert_instantiate becomes obsolete by this change.
7901 As soon as we've got the new code right (possibly it already is?),
7902 we have solved a couple of bugs of the earlier code where s->cert
7903 was used as if it could not have been shared with other SSL structures.
7905 Note that using the SSL API in certain dirty ways now will result
7906 in different behaviour than observed with earlier library versions:
7907 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7908 does not influence s as it used to.
7910 In order to clean up things more thoroughly, inside SSL_SESSION
7911 we don't use CERT any longer, but a new structure SESS_CERT
7912 that holds per-session data (if available); currently, this is
7913 the peer's certificate chain and, for clients, the server's certificate
7914 and temporary key. CERT holds only those values that can have
7915 meaningful defaults in an SSL_CTX.
7918 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7919 from the internal representation. Various PKCS#7 fixes: remove some
7920 evil casts and set the enc_dig_alg field properly based on the signing
7924 *) Allow PKCS#12 password to be set from the command line or the
7925 environment. Let 'ca' get its config file name from the environment
7926 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7930 *) Allow certificate policies extension to use an IA5STRING for the
7931 organization field. This is contrary to the PKIX definition but
7932 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7936 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7937 without disallowing inline assembler and the like for non-pedantic builds.
7940 *) Support Borland C++ builder.
7941 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7946 *) SHA-1 cleanups and performance enhancements.
7947 [Andy Polyakov <appro@fy.chalmers.se>]
7949 *) Sparc v8plus assembler for the bignum library.
7950 [Andy Polyakov <appro@fy.chalmers.se>]
7952 *) Accept any -xxx and +xxx compiler options in Configure.
7955 *) Update HPUX configuration.
7958 *) Add missing sk_<type>_unshift() function to safestack.h
7959 [Ralf S. Engelschall]
7961 *) New function SSL_CTX_use_certificate_chain_file that sets the
7962 "extra_cert"s in addition to the certificate. (This makes sense
7963 only for "PEM" format files, as chains as a whole are not
7967 *) Support verify_depth from the SSL API.
7968 x509_vfy.c had what can be considered an off-by-one-error:
7969 Its depth (which was not part of the external interface)
7970 was actually counting the number of certificates in a chain;
7971 now it really counts the depth.
7974 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7975 instead of X509err, which often resulted in confusing error
7976 messages since the error codes are not globally unique
7977 (e.g. an alleged error in ssl3_accept when a certificate
7978 didn't match the private key).
7980 *) New function SSL_CTX_set_session_id_context that allows to set a default
7981 value (so that you don't need SSL_set_session_id_context for each
7982 connection using the SSL_CTX).
7985 *) OAEP decoding bug fix.
7988 *) Support INSTALL_PREFIX for package builders, as proposed by
7992 *) New Configure options "threads" and "no-threads". For systems
7993 where the proper compiler options are known (currently Solaris
7994 and Linux), "threads" is the default.
7997 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8000 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8001 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8002 such as /usr/local/bin.
8005 *) "make linux-shared" to build shared libraries.
8006 [Niels Poppe <niels@netbox.org>]
8008 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8011 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8012 extension adding in x509 utility.
8015 *) Remove NOPROTO sections and error code comments.
8018 *) Partial rewrite of the DEF file generator to now parse the ANSI
8022 *) New Configure options --prefix=DIR and --openssldir=DIR.
8025 *) Complete rewrite of the error code script(s). It is all now handled
8026 by one script at the top level which handles error code gathering,
8027 header rewriting and C source file generation. It should be much better
8028 than the old method: it now uses a modified version of Ulf's parser to
8029 read the ANSI prototypes in all header files (thus the old K&R definitions
8030 aren't needed for error creation any more) and do a better job of
8031 translating function codes into names. The old 'ASN1 error code imbedded
8032 in a comment' is no longer necessary and it doesn't use .err files which
8033 have now been deleted. Also the error code call doesn't have to appear all
8034 on one line (which resulted in some large lines...).
8037 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8040 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8041 0 (which usually indicates a closed connection), but continue reading.
8044 *) Fix some race conditions.
8047 *) Add support for CRL distribution points extension. Add Certificate
8048 Policies and CRL distribution points documentation.
8051 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8054 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8055 8 of keying material. Merlin has also confirmed interop with this fix
8056 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8057 [Merlin Hughes <merlin@baltimore.ie>]
8059 *) Fix lots of warnings.
8060 [Richard Levitte <levitte@stacken.kth.se>]
8062 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8063 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8064 [Richard Levitte <levitte@stacken.kth.se>]
8066 *) Fix problems with sizeof(long) == 8.
8067 [Andy Polyakov <appro@fy.chalmers.se>]
8069 *) Change functions to ANSI C.
8072 *) Fix typos in error codes.
8073 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8075 *) Remove defunct assembler files from Configure.
8078 *) SPARC v8 assembler BIGNUM implementation.
8079 [Andy Polyakov <appro@fy.chalmers.se>]
8081 *) Support for Certificate Policies extension: both print and set.
8082 Various additions to support the r2i method this uses.
8085 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8086 return a const string when you are expecting an allocated buffer.
8089 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8090 types DirectoryString and DisplayText.
8093 *) Add code to allow r2i extensions to access the configuration database,
8094 add an LHASH database driver and add several ctx helper functions.
8097 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8098 fail when they extended the size of a BIGNUM.
8101 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8102 support typesafe stack.
8105 *) Fix typo in SSL_[gs]et_options().
8106 [Nils Frostberg <nils@medcom.se>]
8108 *) Delete various functions and files that belonged to the (now obsolete)
8109 old X509V3 handling code.
8112 *) New Configure option "rsaref".
8115 *) Don't auto-generate pem.h.
8118 *) Introduce type-safe ASN.1 SETs.
8121 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8122 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8124 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8125 that links with OpenSSL (well at least cause lots of warnings), but fear
8126 not: the conversion is trivial, and it eliminates loads of evil casts. A
8127 few STACKed things have been converted already. Feel free to convert more.
8128 In the fullness of time, I'll do away with the STACK type altogether.
8131 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8132 specified in <certfile> by updating the entry in the index.txt file.
8133 This way one no longer has to edit the index.txt file manually for
8134 revoking a certificate. The -revoke option does the gory details now.
8135 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8137 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8138 `-text' option at all and this way the `-noout -text' combination was
8139 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8140 [Ralf S. Engelschall]
8142 *) Make sure a corresponding plain text error message exists for the
8143 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8144 verify callback function determined that a certificate was revoked.
8145 [Ralf S. Engelschall]
8147 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8148 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8149 all available cipers including rc5, which was forgotten until now.
8150 In order to let the testing shell script know which algorithms
8151 are available, a new (up to now undocumented) command
8152 "openssl list-cipher-commands" is used.
8155 *) Bugfix: s_client occasionally would sleep in select() when
8156 it should have checked SSL_pending() first.
8159 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8160 the raw DSA values prior to ASN.1 encoding.
8163 *) Tweaks to Configure
8164 [Niels Poppe <niels@netbox.org>]
8166 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8170 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8173 *) New config option to avoid instructions that are illegal on the 80386.
8174 The default code is faster, but requires at least a 486.
8177 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8178 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8179 same as SSL2_VERSION anyway.
8182 *) New "-showcerts" option for s_client.
8185 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8186 application. Various cleanups and fixes.
8189 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8190 modify error routines to work internally. Add error codes and PBE init
8191 to library startup routines.
8194 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8195 packing functions to asn1 and evp. Changed function names and error
8196 codes along the way.
8199 *) PKCS12 integration: and so it begins... First of several patches to
8200 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8201 objects to objects.h
8204 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8205 and display support for Thawte strong extranet extension.
8208 *) Add LinuxPPC support.
8209 [Jeff Dubrule <igor@pobox.org>]
8211 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8212 bn_div_words in alpha.s.
8213 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8215 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8216 OAEP isn't supported when OpenSSL is built with RSAref.
8217 [Ulf Moeller <ulf@fitug.de>]
8219 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8220 so they no longer are missing under -DNOPROTO.
8221 [Soren S. Jorvang <soren@t.dk>]
8224 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8226 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8227 doesn't work when the session is reused. Coming soon!
8230 *) Fix a security hole, that allows sessions to be reused in the wrong
8231 context thus bypassing client cert protection! All software that uses
8232 client certs and session caches in multiple contexts NEEDS PATCHING to
8233 allow session reuse! A fuller solution is in the works.
8234 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8236 *) Some more source tree cleanups (removed obsolete files
8237 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8238 permission on "config" script to be executable) and a fix for the INSTALL
8240 [Ulf Moeller <ulf@fitug.de>]
8242 *) Remove some legacy and erroneous uses of malloc, free instead of
8244 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8246 *) Make rsa_oaep_test return non-zero on error.
8247 [Ulf Moeller <ulf@fitug.de>]
8249 *) Add support for native Solaris shared libraries. Configure
8250 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8251 if someone would make that last step automatic.
8252 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8254 *) ctx_size was not built with the right compiler during "make links". Fixed.
8257 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8258 except NULL ciphers". This means the default cipher list will no longer
8259 enable NULL ciphers. They need to be specifically enabled e.g. with
8260 the string "DEFAULT:eNULL".
8263 *) Fix to RSA private encryption routines: if p < q then it would
8264 occasionally produce an invalid result. This will only happen with
8265 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8268 *) Be less restrictive and allow also `perl util/perlpath.pl
8269 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8270 because this way one can also use an interpreter named `perl5' (which is
8271 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8272 installed as `perl').
8273 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8275 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8276 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8278 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8279 advapi32.lib to Win32 build and change the pem test comparision
8280 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8281 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8282 and crypto/des/ede_cbcm_enc.c.
8285 *) DES quad checksum was broken on big-endian architectures. Fixed.
8288 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8289 Win32 test batch file so it (might) work again. The Win32 test batch file
8290 is horrible: I feel ill....
8293 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8294 in e_os.h. Audit of header files to check ANSI and non ANSI
8295 sections: 10 functions were absent from non ANSI section and not exported
8296 from Windows DLLs. Fixed up libeay.num for new functions.
8299 *) Make `openssl version' output lines consistent.
8300 [Ralf S. Engelschall]
8302 *) Fix Win32 symbol export lists for BIO functions: Added
8303 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8304 to ms/libeay{16,32}.def.
8305 [Ralf S. Engelschall]
8307 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8308 fine under Unix and passes some trivial tests I've now added. But the
8309 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8310 added to make sure no one expects that this stuff really works in the
8311 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8312 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8314 [Ralf S. Engelschall]
8316 *) Fix the generation of two part addresses in perl.
8317 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8319 *) Add config entry for Linux on MIPS.
8320 [John Tobey <jtobey@channel1.com>]
8322 *) Make links whenever Configure is run, unless we are on Windoze.
8325 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8326 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8330 *) Add a useful kludge to allow package maintainers to specify compiler and
8331 other platforms details on the command line without having to patch the
8332 Configure script everytime: One now can use ``perl Configure
8333 <id>:<details>'', i.e. platform ids are allowed to have details appended
8334 to them (seperated by colons). This is treated as there would be a static
8335 pre-configured entry in Configure's %table under key <id> with value
8336 <details> and ``perl Configure <id>'' is called. So, when you want to
8337 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8338 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8339 now, which overrides the FreeBSD-elf entry on-the-fly.
8340 [Ralf S. Engelschall]
8342 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8345 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8346 on the `perl Configure ...' command line. This way one can compile
8347 OpenSSL libraries with Position Independent Code (PIC) which is needed
8348 for linking it into DSOs.
8349 [Ralf S. Engelschall]
8351 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8355 *) Cleaned up the LICENSE document: The official contact for any license
8356 questions now is the OpenSSL core team under openssl-core@openssl.org.
8357 And add a paragraph about the dual-license situation to make sure people
8358 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8359 to the OpenSSL toolkit.
8360 [Ralf S. Engelschall]
8362 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8363 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8364 Additonally cleaned up the `make links' target: Remove unnecessary
8365 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8366 to speed processing and no longer clutter the display with confusing
8367 stuff. Instead only the actually done links are displayed.
8368 [Ralf S. Engelschall]
8370 *) Permit null encryption ciphersuites, used for authentication only. It used
8371 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8372 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8376 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8377 signed attributes when verifying signatures (this would break them),
8378 the detached data encoding was wrong and public keys obtained using
8379 X509_get_pubkey() weren't freed.
8382 *) Add text documentation for the BUFFER functions. Also added a work around
8383 to a Win95 console bug. This was triggered by the password read stuff: the
8384 last character typed gets carried over to the next fread(). If you were
8385 generating a new cert request using 'req' for example then the last
8386 character of the passphrase would be CR which would then enter the first
8390 *) Added the new `Includes OpenSSL Cryptography Software' button as
8391 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8392 button and can be used by applications based on OpenSSL to show the
8393 relationship to the OpenSSL project.
8394 [Ralf S. Engelschall]
8396 *) Remove confusing variables in function signatures in files
8397 ssl/ssl_lib.c and ssl/ssl.h.
8398 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8400 *) Don't install bss_file.c under PREFIX/include/
8401 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8403 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8404 functions that return function pointers and has support for NT specific
8405 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8406 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8407 unsigned to signed types: this was killing the Win32 compile.
8410 *) Add new certificate file to stack functions,
8411 SSL_add_dir_cert_subjects_to_stack() and
8412 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8413 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8414 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8415 This means that Apache-SSL and similar packages don't have to mess around
8416 to add as many CAs as they want to the preferred list.
8419 *) Experiment with doxygen documentation. Currently only partially applied to
8421 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8422 openssl.doxy as the configuration file.
8425 *) Get rid of remaining C++-style comments which strict C compilers hate.
8426 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8428 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8429 compiled in by default: it has problems with large keys.
8432 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8433 DH private keys and/or callback functions which directly correspond to
8434 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8435 is needed for applications which have to configure certificates on a
8436 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8438 For the RSA certificate situation is makes no difference, but
8439 for the DSA certificate situation this fixes the "no shared cipher"
8440 problem where the OpenSSL cipher selection procedure failed because the
8441 temporary keys were not overtaken from the context and the API provided
8442 no way to reconfigure them.
8443 The new functions now let applications reconfigure the stuff and they
8444 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8445 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8446 non-public-API function ssl_cert_instantiate() is used as a helper
8447 function and also to reduce code redundancy inside ssl_rsa.c.
8448 [Ralf S. Engelschall]
8450 *) Move s_server -dcert and -dkey options out of the undocumented feature
8451 area because they are useful for the DSA situation and should be
8452 recognized by the users.
8453 [Ralf S. Engelschall]
8455 *) Fix the cipher decision scheme for export ciphers: the export bits are
8456 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8457 SSL_EXP_MASK. So, the original variable has to be used instead of the
8458 already masked variable.
8459 [Richard Levitte <levitte@stacken.kth.se>]
8461 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8462 [Richard Levitte <levitte@stacken.kth.se>]
8464 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8465 from `int' to `unsigned int' because it's a length and initialized by
8466 EVP_DigestFinal() which expects an `unsigned int *'.
8467 [Richard Levitte <levitte@stacken.kth.se>]
8469 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8470 script. Instead use the usual Shell->Perl transition trick.
8471 [Ralf S. Engelschall]
8473 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8474 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8475 -noout -modulus' as it's already the case for `openssl rsa -noout
8476 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8477 currently the public key is printed (a decision which was already done by
8478 `openssl dsa -modulus' in the past) which serves a similar purpose.
8479 Additionally the NO_RSA no longer completely removes the whole -modulus
8480 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8482 [Ralf S. Engelschall]
8484 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8485 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8486 [Arne Ansper <arne@ats.cyber.ee>]
8488 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8489 to be added. Now both 'req' and 'ca' can use new objects defined in the
8493 *) Add cool BIO that does syslog (or event log on NT).
8494 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8496 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8497 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8498 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8499 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8502 *) Add preliminary config info for new extension code.
8505 *) Make RSA_NO_PADDING really use no padding.
8506 [Ulf Moeller <ulf@fitug.de>]
8508 *) Generate errors when private/public key check is done.
8511 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8512 for some CRL extensions and new objects added.
8515 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8516 key usage extension and fuller support for authority key id.
8519 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8520 padding method for RSA, which is recommended for new applications in PKCS
8521 #1 v2.0 (RFC 2437, October 1998).
8522 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8523 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8524 against Bleichbacher's attack on RSA.
8525 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8528 *) Updates to the new SSL compression code
8529 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8531 *) Fix so that the version number in the master secret, when passed
8532 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8533 (because the server will not accept higher), that the version number
8534 is 0x03,0x01, not 0x03,0x00
8535 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8537 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8538 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8539 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8542 *) Support for RAW extensions where an arbitrary extension can be
8543 created by including its DER encoding. See apps/openssl.cnf for
8547 *) Make sure latest Perl versions don't interpret some generated C array
8548 code as Perl array code in the crypto/err/err_genc.pl script.
8549 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8551 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8552 not many people have the assembler. Various Win32 compilation fixes and
8553 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8557 *) Modify configure script 'Configure' to automatically create crypto/date.h
8558 file under Win32 and also build pem.h from pem.org. New script
8559 util/mkfiles.pl to create the MINFO file on environments that can't do a
8560 'make files': perl util/mkfiles.pl >MINFO should work.
8563 *) Major rework of DES function declarations, in the pursuit of correctness
8564 and purity. As a result, many evil casts evaporated, and some weirdness,
8565 too. You may find this causes warnings in your code. Zapping your evil
8566 casts will probably fix them. Mostly.
8569 *) Fix for a typo in asn1.h. Bug fix to object creation script
8570 obj_dat.pl. It considered a zero in an object definition to mean
8571 "end of object": none of the objects in objects.h have any zeros
8572 so it wasn't spotted.
8573 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8575 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8576 Masking (CBCM). In the absence of test vectors, the best I have been able
8577 to do is check that the decrypt undoes the encrypt, so far. Send me test
8578 vectors if you have them.
8581 *) Correct calculation of key length for export ciphers (too much space was
8582 allocated for null ciphers). This has not been tested!
8585 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8586 message is now correct (it understands "crypto" and "ssl" on its
8587 command line). There is also now an "update" option. This will update
8588 the util/ssleay.num and util/libeay.num files with any new functions.
8590 perl util/mkdef.pl crypto ssl update
8591 it will update them.
8594 *) Overhauled the Perl interface (perl/*):
8595 - ported BN stuff to OpenSSL's different BN library
8596 - made the perl/ source tree CVS-aware
8597 - renamed the package from SSLeay to OpenSSL (the files still contain
8598 their history because I've copied them in the repository)
8599 - removed obsolete files (the test scripts will be replaced
8600 by better Test::Harness variants in the future)
8601 [Ralf S. Engelschall]
8603 *) First cut for a very conservative source tree cleanup:
8604 1. merge various obsolete readme texts into doc/ssleay.txt
8605 where we collect the old documents and readme texts.
8606 2. remove the first part of files where I'm already sure that we no
8607 longer need them because of three reasons: either they are just temporary
8608 files which were left by Eric or they are preserved original files where
8609 I've verified that the diff is also available in the CVS via "cvs diff
8610 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8611 the crypto/md/ stuff).
8612 [Ralf S. Engelschall]
8614 *) More extension code. Incomplete support for subject and issuer alt
8615 name, issuer and authority key id. Change the i2v function parameters
8616 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8617 what that's for :-) Fix to ASN1 macro which messed up
8618 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8621 *) Preliminary support for ENUMERATED type. This is largely copied from the
8625 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8626 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8628 *) Make sure `make rehash' target really finds the `openssl' program.
8629 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8631 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8632 like to hear about it if this slows down other processors.
8635 *) Add CygWin32 platform information to Configure script.
8636 [Alan Batie <batie@aahz.jf.intel.com>]
8638 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8639 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8641 *) New program nseq to manipulate netscape certificate sequences
8644 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8648 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8649 but the BN code had some problems that would cause failures when
8650 doing certificate verification and some other functions.
8651 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8653 *) Add ASN1 and PEM code to support netscape certificate sequences.
8656 *) Add ASN1 and PEM code to support netscape certificate sequences.
8659 *) Add several PKIX and private extended key usage OIDs.
8662 *) Modify the 'ca' program to handle the new extension code. Modify
8663 openssl.cnf for new extension format, add comments.
8666 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8667 and add a sample to openssl.cnf so req -x509 now adds appropriate
8671 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8672 error code, add initial support to X509_print() and x509 application.
8675 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8676 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8677 stuff is currently isolated and isn't even compiled yet.
8680 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8681 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8682 Removed the versions check from X509 routines when loading extensions:
8683 this allows certain broken certificates that don't set the version
8684 properly to be processed.
8687 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8688 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8689 can still be regenerated with "make depend".
8692 *) Spelling mistake in C version of CAST-128.
8693 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8695 *) Changes to the error generation code. The perl script err-code.pl
8696 now reads in the old error codes and retains the old numbers, only
8697 adding new ones if necessary. It also only changes the .err files if new
8698 codes are added. The makefiles have been modified to only insert errors
8699 when needed (to avoid needlessly modifying header files). This is done
8700 by only inserting errors if the .err file is newer than the auto generated
8701 C file. To rebuild all the error codes from scratch (the old behaviour)
8702 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8703 or delete all the .err files.
8706 *) CAST-128 was incorrectly implemented for short keys. The C version has
8707 been fixed, but is untested. The assembler versions are also fixed, but
8708 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8709 to regenerate it if needed.
8710 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8711 Hagino <itojun@kame.net>]
8713 *) File was opened incorrectly in randfile.c.
8714 [Ulf Möller <ulf@fitug.de>]
8716 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8717 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8718 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8719 al: it's just almost always a UTCTime. Note this patch adds new error
8720 codes so do a "make errors" if there are problems.
8723 *) Correct Linux 1 recognition in config.
8724 [Ulf Möller <ulf@fitug.de>]
8726 *) Remove pointless MD5 hash when using DSA keys in ca.
8727 [Anonymous <nobody@replay.com>]
8729 *) Generate an error if given an empty string as a cert directory. Also
8730 generate an error if handed NULL (previously returned 0 to indicate an
8731 error, but didn't set one).
8732 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8734 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8737 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8738 parameters. This was causing a warning which killed off the Win32 compile.
8741 *) Remove C++ style comments from crypto/bn/bn_local.h.
8742 [Neil Costigan <neil.costigan@celocom.com>]
8744 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8745 based on a text string, looking up short and long names and finally
8746 "dot" format. The "dot" format stuff didn't work. Added new function
8747 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8748 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8749 OID is not part of the table.
8752 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8753 X509_LOOKUP_by_alias().
8756 *) Sort openssl functions by name.
8759 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8760 encryption from sample DSA keys (in case anyone is interested the password
8764 *) Make _all_ *_free functions accept a NULL pointer.
8765 [Frans Heymans <fheymans@isaserver.be>]
8767 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8769 [Anonymous <nobody@replay.com>]
8771 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8772 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8774 *) Don't blow it for numeric -newkey arguments to apps/req.
8775 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8777 *) Temp key "for export" tests were wrong in s3_srvr.c.
8778 [Anonymous <nobody@replay.com>]
8780 *) Add prototype for temp key callback functions
8781 SSL_CTX_set_tmp_{rsa,dh}_callback().
8784 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8785 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8788 *) X509_name_add_entry() freed the wrong thing after an error.
8789 [Arne Ansper <arne@ats.cyber.ee>]
8791 *) rsa_eay.c would attempt to free a NULL context.
8792 [Arne Ansper <arne@ats.cyber.ee>]
8794 *) BIO_s_socket() had a broken should_retry() on Windoze.
8795 [Arne Ansper <arne@ats.cyber.ee>]
8797 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8798 [Arne Ansper <arne@ats.cyber.ee>]
8800 *) Make sure the already existing X509_STORE->depth variable is initialized
8801 in X509_STORE_new(), but document the fact that this variable is still
8802 unused in the certificate verification process.
8803 [Ralf S. Engelschall]
8805 *) Fix the various library and apps files to free up pkeys obtained from
8806 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8809 *) Fix reference counting in X509_PUBKEY_get(). This makes
8810 demos/maurice/example2.c work, amongst others, probably.
8811 [Steve Henson and Ben Laurie]
8813 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8814 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8815 are no longer created. This way we have a single and consistent command
8816 line interface `openssl <command>', similar to `cvs <command>'.
8817 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8819 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8820 BIT STRING wrapper always have zero unused bits.
8823 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8826 *) Make the top-level INSTALL documentation easier to understand.
8829 *) Makefiles updated to exit if an error occurs in a sub-directory
8830 make (including if user presses ^C) [Paul Sutton]
8832 *) Make Montgomery context stuff explicit in RSA data structure.
8835 *) Fix build order of pem and err to allow for generated pem.h.
8838 *) Fix renumbering bug in X509_NAME_delete_entry().
8841 *) Enhanced the err-ins.pl script so it makes the error library number
8842 global and can add a library name. This is needed for external ASN1 and
8843 other error libraries.
8846 *) Fixed sk_insert which never worked properly.
8849 *) Fix ASN1 macros so they can handle indefinite length construted
8850 EXPLICIT tags. Some non standard certificates use these: they can now
8854 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8855 into a single doc/ssleay.txt bundle. This way the information is still
8856 preserved but no longer messes up this directory. Now it's new room for
8857 the new set of documenation files.
8858 [Ralf S. Engelschall]
8860 *) SETs were incorrectly DER encoded. This was a major pain, because they
8861 shared code with SEQUENCEs, which aren't coded the same. This means that
8862 almost everything to do with SETs or SEQUENCEs has either changed name or
8863 number of arguments.
8864 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8866 *) Fix test data to work with the above.
8869 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8870 was already fixed by Eric for 0.9.1 it seems.
8871 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8873 *) Autodetect FreeBSD3.
8876 *) Fix various bugs in Configure. This affects the following platforms:
8880 unixware-2.0-pentium
8884 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8885 before they are needed.
8888 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8892 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8894 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8895 changed SSLeay to OpenSSL in version strings.
8896 [Ralf S. Engelschall]
8898 *) Some fixups to the top-level documents.
8901 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8902 because the symlink to include/ was missing.
8903 [Ralf S. Engelschall]
8905 *) Incorporated the popular no-RSA/DSA-only patches
8906 which allow to compile a RSA-free SSLeay.
8907 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8909 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8910 when "ssleay" is still not found.
8911 [Ralf S. Engelschall]
8913 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8914 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8916 *) Updated the README file.
8917 [Ralf S. Engelschall]
8919 *) Added various .cvsignore files in the CVS repository subdirs
8920 to make a "cvs update" really silent.
8921 [Ralf S. Engelschall]
8923 *) Recompiled the error-definition header files and added
8924 missing symbols to the Win32 linker tables.
8925 [Ralf S. Engelschall]
8927 *) Cleaned up the top-level documents;
8928 o new files: CHANGES and LICENSE
8929 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8930 o merged COPYRIGHT into LICENSE
8931 o removed obsolete TODO file
8932 o renamed MICROSOFT to INSTALL.W32
8933 [Ralf S. Engelschall]
8935 *) Removed dummy files from the 0.9.1b source tree:
8936 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8937 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8938 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8939 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8940 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8941 [Ralf S. Engelschall]
8943 *) Added various platform portability fixes.
8946 *) The Genesis of the OpenSSL rpject:
8947 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8948 Young and Tim J. Hudson created while they were working for C2Net until
8950 [The OpenSSL Project]
8953 Changes between 0.9.0b and 0.9.1b [not released]
8955 *) Updated a few CA certificates under certs/
8958 *) Changed some BIGNUM api stuff.
8961 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8962 DGUX x86, Linux Alpha, etc.
8965 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8966 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8970 *) Add -strparse option to asn1pars program which parses nested
8972 [Dr Stephen Henson <shenson@bigfoot.com>]
8974 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8977 *) DSA fix for "ca" program.
8980 *) Added "-genkey" option to "dsaparam" program.
8983 *) Added RIPE MD160 (rmd160) message digest.
8986 *) Added -a (all) option to "ssleay version" command.
8989 *) Added PLATFORM define which is the id given to Configure.
8992 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8995 *) Extended the ASN.1 parser routines.
8998 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9001 *) Added a BN_CTX to the BN library.
9004 *) Fixed the weak key values in DES library
9007 *) Changed API in EVP library for cipher aliases.
9010 *) Added support for RC2/64bit cipher.
9013 *) Converted the lhash library to the crypto/mem.c functions.
9016 *) Added more recognized ASN.1 object ids.
9019 *) Added more RSA padding checks for SSL/TLS.
9022 *) Added BIO proxy/filter functionality.
9025 *) Added extra_certs to SSL_CTX which can be used
9026 send extra CA certificates to the client in the CA cert chain sending
9027 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9030 *) Now Fortezza is denied in the authentication phase because
9031 this is key exchange mechanism is not supported by SSLeay at all.
9034 *) Additional PKCS1 checks.
9037 *) Support the string "TLSv1" for all TLS v1 ciphers.
9040 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9041 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9044 *) Fixed a few memory leaks.
9047 *) Fixed various code and comment typos.
9050 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9051 bytes sent in the client random.
9052 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob