5 Changes between 0.9.8k and 1.0 [xx XXX xxxx]
7 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
11 *) Add "missing" function EVP_MD_flags() (without this the only way to
12 retrieve a digest flags is by accessing the structure directly. Update
13 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
14 or cipher is registered as in the "from" argument. Print out all
15 registered digests in the dgst usage message instead of manually
16 attempting to work them out.
19 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
20 this allows the use of compression and extensions. Change default cipher
21 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
22 by default unless an application cipher string requests it.
25 *) Alter match criteria in PKCS12_parse(). It used to try to use local
26 key ids to find matching certificates and keys but some PKCS#12 files
27 don't follow the (somewhat unwritten) rules and this strategy fails.
28 Now just gather all certificates together and the first private key
29 then look for the first certificate that matches the key.
32 *) Support use of registered digest and cipher names for dgst and cipher
33 commands instead of having to add each one as a special case. So now
40 openssl dgst -sha256 foo
42 and this works for ENGINE based algorithms too.
46 *) Update Gost ENGINE to support parameter files.
47 [Victor B. Wagner <vitus@cryptocom.ru>]
49 *) Support GeneralizedTime in ca utility.
50 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
52 *) Enhance the hash format used for certificate directory links. The new
53 form uses the canonical encoding (meaning equivalent names will work
54 even if they aren't identical) and uses SHA1 instead of MD5. This form
55 is incompatible with the older format and as a result c_rehash should
56 be used to rebuild symbolic links.
59 *) Make PKCS#8 the default write format for private keys, replacing the
60 traditional format. This form is standardised, more secure and doesn't
61 include an implicit MD5 dependency.
64 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
65 committed to OpenSSL should pass this lot as a minimum.
68 *) Add session ticket override functionality for use by EAP-FAST.
69 [Jouni Malinen <j@w1.fi>]
71 *) Modify HMAC functions to return a value. Since these can be implemented
72 in an ENGINE errors can occur.
75 *) Type-checked OBJ_bsearch_ex.
78 *) Type-checked OBJ_bsearch. Also some constification necessitated
79 by type-checking. Still to come: TXT_DB, bsearch(?),
80 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
84 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
85 seconds to a tm structure directly, instead of going through OS
86 specific date routines. This avoids any issues with OS routines such
87 as the year 2038 bug. New *_adj() functions for ASN1 time structures
88 and X509_time_adj_ex() to cover the extended range. The existing
89 X509_time_adj() is still usable and will no longer have any date issues.
92 *) Delta CRL support. New use deltas option which will attempt to locate
93 and search any appropriate delta CRLs available.
95 This work was sponsored by Google.
98 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
99 code and add additional score elements. Validate alternate CRL paths
100 as part of the CRL checking and indicate a new error "CRL path validation
101 error" in this case. Applications wanting additional details can use
102 the verify callback and check the new "parent" field. If this is not
103 NULL CRL path validation is taking place. Existing applications wont
104 see this because it requires extended CRL support which is off by
107 This work was sponsored by Google.
110 *) Support for freshest CRL extension.
112 This work was sponsored by Google.
115 *) Initial indirect CRL support. Currently only supported in the CRLs
116 passed directly and not via lookup. Process certificate issuer
117 CRL entry extension and lookup CRL entries by bother issuer name
118 and serial number. Check and process CRL issuer entry in IDP extension.
120 This work was sponsored by Google.
123 *) Add support for distinct certificate and CRL paths. The CRL issuer
124 certificate is validated separately in this case. Only enabled if
125 an extended CRL support flag is set: this flag will enable additional
126 CRL functionality in future.
128 This work was sponsored by Google.
131 *) Add support for policy mappings extension.
133 This work was sponsored by Google.
136 *) Fixes to pathlength constraint, self issued certificate handling,
137 policy processing to align with RFC3280 and PKITS tests.
139 This work was sponsored by Google.
142 *) Support for name constraints certificate extension. DN, email, DNS
143 and URI types are currently supported.
145 This work was sponsored by Google.
148 *) To cater for systems that provide a pointer-based thread ID rather
149 than numeric, deprecate the current numeric thread ID mechanism and
150 replace it with a structure and associated callback type. This
151 mechanism allows a numeric "hash" to be extracted from a thread ID in
152 either case, and on platforms where pointers are larger than 'long',
153 mixing is done to help ensure the numeric 'hash' is usable even if it
154 can't be guaranteed unique. The default mechanism is to use "&errno"
155 as a pointer-based thread ID to distinguish between threads.
157 Applications that want to provide their own thread IDs should now use
158 CRYPTO_THREADID_set_callback() to register a callback that will call
159 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
161 Note that ERR_remove_state() is now deprecated, because it is tied
162 to the assumption that thread IDs are numeric. ERR_remove_state(0)
163 to free the current thread's error state should be replaced by
164 ERR_remove_thread_state(NULL).
166 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
167 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
168 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
169 application was previously providing a numeric thread callback that
170 was inappropriate for distinguishing threads, then uniqueness might
171 have been obtained with &errno that happened immediately in the
172 intermediate development versions of OpenSSL; this is no longer the
173 case, the numeric thread callback will now override the automatic use
175 [Geoff Thorpe, with help from Bodo Moeller]
177 *) Initial support for different CRL issuing certificates. This covers a
178 simple case where the self issued certificates in the chain exist and
179 the real CRL issuer is higher in the existing chain.
181 This work was sponsored by Google.
184 *) Removed effectively defunct crypto/store from the build.
187 *) Revamp of STACK to provide stronger type-checking. Still to come:
188 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
189 ASN1_STRING, CONF_VALUE.
192 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
193 RAM on SSL connections. This option can save about 34k per idle SSL.
196 *) Revamp of LHASH to provide stronger type-checking. Still to come:
197 STACK, TXT_DB, bsearch, qsort.
200 *) Initial support for Cryptographic Message Syntax (aka CMS) based
201 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
202 support for data, signedData, compressedData, digestedData and
203 encryptedData, envelopedData types included. Scripts to check against
204 RFC4134 examples draft and interop and consistency checks of many
205 content types and variants.
208 *) Add options to enc utility to support use of zlib compression BIO.
211 *) Extend mk1mf to support importing of options and assembly language
212 files from Configure script, currently only included in VC-WIN32.
213 The assembly language rules can now optionally generate the source
214 files from the associated perl scripts.
217 *) Implement remaining functionality needed to support GOST ciphersuites.
218 Interop testing has been performed using CryptoPro implementations.
219 [Victor B. Wagner <vitus@cryptocom.ru>]
221 *) s390x assembler pack.
224 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
228 *) Implement Opaque PRF Input TLS extension as specified in
229 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
230 official specification yet and no extension type assignment by
231 IANA exists, this extension (for now) will have to be explicitly
232 enabled when building OpenSSL by providing the extension number
233 to use. For example, specify an option
235 -DTLSEXT_TYPE_opaque_prf_input=0x9527
237 to the "config" or "Configure" script to enable the extension,
238 assuming extension number 0x9527 (which is a completely arbitrary
239 and unofficial assignment based on the MD5 hash of the Internet
240 Draft). Note that by doing so, you potentially lose
241 interoperability with other TLS implementations since these might
242 be using the same extension number for other purposes.
244 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
245 opaque PRF input value to use in the handshake. This will create
246 an interal copy of the length-'len' string at 'src', and will
247 return non-zero for success.
249 To get more control and flexibility, provide a callback function
252 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
253 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
257 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
260 Callback function 'cb' will be called in handshakes, and is
261 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
262 Argument 'arg' is for application purposes (the value as given to
263 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
264 be provided to the callback function). The callback function
265 has to return non-zero to report success: usually 1 to use opaque
266 PRF input just if possible, or 2 to enforce use of the opaque PRF
267 input. In the latter case, the library will abort the handshake
268 if opaque PRF input is not successfully negotiated.
270 Arguments 'peerinput' and 'len' given to the callback function
271 will always be NULL and 0 in the case of a client. A server will
272 see the client's opaque PRF input through these variables if
273 available (NULL and 0 otherwise). Note that if the server
274 provides an opaque PRF input, the length must be the same as the
275 length of the client's opaque PRF input.
277 Note that the callback function will only be called when creating
278 a new session (session resumption can resume whatever was
279 previously negotiated), and will not be called in SSL 2.0
280 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
281 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
282 for applications that need to enforce opaque PRF input.
286 *) Update ssl code to support digests other than SHA1+MD5 for handshake
289 [Victor B. Wagner <vitus@cryptocom.ru>]
291 *) Add RFC4507 support to OpenSSL. This includes the corrections in
292 RFC4507bis. The encrypted ticket format is an encrypted encoded
293 SSL_SESSION structure, that way new session features are automatically
296 If a client application caches session in an SSL_SESSION structure
297 support is transparent because tickets are now stored in the encoded
300 The SSL_CTX structure automatically generates keys for ticket
301 protection in servers so again support should be possible
302 with no application modification.
304 If a client or server wishes to disable RFC4507 support then the option
305 SSL_OP_NO_TICKET can be set.
307 Add a TLS extension debugging callback to allow the contents of any client
308 or server extensions to be examined.
310 This work was sponsored by Google.
313 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
314 OpenSSL should now compile cleanly on gcc 4.2
315 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
317 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
318 support including streaming MAC support: this is required for GOST
320 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
322 *) Add option -stream to use PKCS#7 streaming in smime utility. New
323 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
324 to output in BER and PEM format.
327 *) Experimental support for use of HMAC via EVP_PKEY interface. This
328 allows HMAC to be handled via the EVP_DigestSign*() interface. The
329 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
330 ENGINE support for HMAC keys which are unextractable. New -mac and
331 -macopt options to dgst utility.
334 *) New option -sigopt to dgst utility. Update dgst to use
335 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
336 alternative signing paramaters such as X9.31 or PSS in the dgst
340 *) Change ssl_cipher_apply_rule(), the internal function that does
341 the work each time a ciphersuite string requests enabling
342 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
343 removing ("!foo+bar") a class of ciphersuites: Now it maintains
344 the order of disabled ciphersuites such that those ciphersuites
345 that most recently went from enabled to disabled not only stay
346 in order with respect to each other, but also have higher priority
347 than other disabled ciphersuites the next time ciphersuites are
350 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
351 the same ciphersuites as with "HIGH" alone, but in a specific
352 order where the PSK ciphersuites come first (since they are the
353 most recently disabled ciphersuites when "HIGH" is parsed).
355 Also, change ssl_create_cipher_list() (using this new
356 funcionality) such that between otherwise identical
357 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
361 *) Change ssl_create_cipher_list() so that it automatically
362 arranges the ciphersuites in reasonable order before starting
363 to process the rule string. Thus, the definition for "DEFAULT"
364 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
365 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
366 This makes it much easier to arrive at a reasonable default order
367 in applications for which anonymous ciphers are OK (meaning
368 that you can't actually use DEFAULT).
369 [Bodo Moeller; suggested by Victor Duchovni]
371 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
372 processing) into multiple integers instead of setting
373 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
374 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
375 (These masks as well as the individual bit definitions are hidden
376 away into the non-exported interface ssl/ssl_locl.h, so this
377 change to the definition of the SSL_CIPHER structure shouldn't
378 affect applications.) This give us more bits for each of these
379 categories, so there is no longer a need to coagulate AES128 and
380 AES256 into a single algorithm bit, and to coagulate Camellia128
381 and Camellia256 into a single algorithm bit, which has led to all
384 Thus, among other things, the kludge introduced in 0.9.7m and
385 0.9.8e for masking out AES256 independently of AES128 or masking
386 out Camellia256 independently of AES256 is not needed here in 0.9.9.
388 With the change, we also introduce new ciphersuite aliases that
389 so far were missing: "AES128", "AES256", "CAMELLIA128", and
393 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
394 Use the leftmost N bytes of the signature input if the input is
395 larger than the prime q (with N being the size in bytes of q).
398 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
399 it yet and it is largely untested.
402 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
405 *) Initial incomplete changes to avoid need for function casts in OpenSSL
406 some compilers (gcc 4.2 and later) reject their use. Safestack is
407 reimplemented. Update ASN1 to avoid use of legacy functions.
410 *) Win32/64 targets are linked with Winsock2.
413 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
414 to external functions. This can be used to increase CRL handling
415 efficiency especially when CRLs are very large by (for example) storing
416 the CRL revoked certificates in a database.
419 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
420 new CRLs added to a directory can be used. New command line option
421 -verify_return_error to s_client and s_server. This causes real errors
422 to be returned by the verify callback instead of carrying on no matter
423 what. This reflects the way a "real world" verify callback would behave.
426 *) GOST engine, supporting several GOST algorithms and public key formats.
427 Kindly donated by Cryptocom.
430 *) Partial support for Issuing Distribution Point CRL extension. CRLs
431 partitioned by DP are handled but no indirect CRL or reason partitioning
432 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
433 selected via a scoring technique which handles IDP and AKID in CRLs.
436 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
437 will ultimately be used for all verify operations: this will remove the
438 X509_STORE dependency on certificate verification and allow alternative
439 lookup methods. X509_STORE based implementations of these two callbacks.
442 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
443 Modify get_crl() to find a valid (unexpired) CRL if possible.
446 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
447 this would be called X509_CRL_cmp() but that name is already used by
448 a function that just compares CRL issuer names. Cache several CRL
449 extensions in X509_CRL structure and cache CRLDP in X509.
452 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
453 this maps equivalent X509_NAME structures into a consistent structure.
454 Name comparison can then be performed rapidly using memcmp().
457 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
461 *) Allow digests to supply their own micalg string for S/MIME type using
462 the ctrl EVP_MD_CTRL_MICALG.
465 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
466 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
467 ctrl. It can then customise the structure before and/or after signing
471 *) New function OBJ_add_sigid() to allow application defined signature OIDs
472 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
473 to free up any added signature OIDs.
476 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
477 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
478 digest and cipher tables. New options added to openssl utility:
479 list-message-digest-algorithms and list-cipher-algorithms.
482 *) Change the array representation of binary polynomials: the list
483 of degrees of non-zero coefficients is now terminated with -1.
484 Previously it was terminated with 0, which was also part of the
485 value; thus, the array representation was not applicable to
486 polynomials where t^0 has coefficient zero. This change makes
487 the array representation useful in a more general context.
490 *) Various modifications and fixes to SSL/TLS cipher string
491 handling. For ECC, the code now distinguishes between fixed ECDH
492 with RSA certificates on the one hand and with ECDSA certificates
493 on the other hand, since these are separate ciphersuites. The
494 unused code for Fortezza ciphersuites has been removed.
496 For consistency with EDH, ephemeral ECDH is now called "EECDH"
497 (not "ECDHE"). For consistency with the code for DH
498 certificates, use of ECDH certificates is now considered ECDH
499 authentication, not RSA or ECDSA authentication (the latter is
500 merely the CA's signing algorithm and not actively used in the
503 The temporary ciphersuite alias "ECCdraft" is no longer
504 available, and ECC ciphersuites are no longer excluded from "ALL"
505 and "DEFAULT". The following aliases now exist for RFC 4492
506 ciphersuites, most of these by analogy with the DH case:
508 kECDHr - ECDH cert, signed with RSA
509 kECDHe - ECDH cert, signed with ECDSA
510 kECDH - ECDH cert (signed with either RSA or ECDSA)
511 kEECDH - ephemeral ECDH
512 ECDH - ECDH cert or ephemeral ECDH
518 AECDH - anonymous ECDH
519 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
523 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
524 Use correct micalg parameters depending on digest(s) in signed message.
527 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
528 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
531 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
532 an engine to register a method. Add ENGINE lookups for methods and
533 functional reference processing.
536 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
537 EVP_{Sign,Verify}* which allow an application to customise the signature
541 *) New -resign option to smime utility. This adds one or more signers
542 to an existing PKCS#7 signedData structure. Also -md option to use an
543 alternative message digest algorithm for signing.
546 *) Tidy up PKCS#7 routines and add new functions to make it easier to
547 create PKCS7 structures containing multiple signers. Update smime
548 application to support multiple signers.
551 *) New -macalg option to pkcs12 utility to allow setting of an alternative
555 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
556 Reorganize PBE internals to lookup from a static table using NIDs,
557 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
558 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
559 PRF which will be automatically used with PBES2.
562 *) Replace the algorithm specific calls to generate keys in "req" with the
566 *) Update PKCS#7 enveloped data routines to use new API. This is now
567 supported by any public key method supporting the encrypt operation. A
568 ctrl is added to allow the public key algorithm to examine or modify
569 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
573 *) Add a ctrl to asn1 method to allow a public key algorithm to express
574 a default digest type to use. In most cases this will be SHA1 but some
575 algorithms (such as GOST) need to specify an alternative digest. The
576 return value indicates how strong the prefernce is 1 means optional and
577 2 is mandatory (that is it is the only supported type). Modify
578 ASN1_item_sign() to accept a NULL digest argument to indicate it should
579 use the default md. Update openssl utilities to use the default digest
580 type for signing if it is not explicitly indicated.
583 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
584 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
585 signing method from the key type. This effectively removes the link
586 between digests and public key types.
589 *) Add an OID cross reference table and utility functions. Its purpose is to
590 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
591 rsaEncryption. This will allow some of the algorithm specific hackery
592 needed to use the correct OID to be removed.
595 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
596 structures for PKCS7_sign(). They are now set up by the relevant public
600 *) Add provisional EC pkey method with support for ECDSA and ECDH.
603 *) Add support for key derivation (agreement) in the API, DH method and
607 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
608 public and private key formats. As a side effect these add additional
609 command line functionality not previously available: DSA signatures can be
610 generated and verified using pkeyutl and DH key support and generation in
615 [Oliver Tappe <zooey@hirschkaefer.de>]
617 *) New make target "install_html_docs" installs HTML renditions of the
619 [Oliver Tappe <zooey@hirschkaefer.de>]
621 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
622 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
623 support key and parameter generation and add initial key generation
624 functionality for RSA.
627 *) Add functions for main EVP_PKEY_method operations. The undocumented
628 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
629 EVP_PKEY_{encrypt,decrypt}_old.
632 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
633 key API, doesn't do much yet.
636 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
637 public key algorithms. New option to openssl utility:
638 "list-public-key-algorithms" to print out info.
641 *) Implement the Supported Elliptic Curves Extension for
642 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
645 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
646 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
649 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
650 utilities such as rsa, dsa, dsaparam etc except they process any key
654 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
655 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
656 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
660 *) Initial support for pluggable public key ASN1.
661 De-spaghettify the public key ASN1 handling. Move public and private
662 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
663 algorithm specific handling to a single module within the relevant
664 algorithm directory. Add functions to allow (near) opaque processing
665 of public and private key structures.
668 *) Implement the Supported Point Formats Extension for
669 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
672 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
673 for the psk identity [hint] and the psk callback functions to the
674 SSL_SESSION, SSL and SSL_CTX structure.
677 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
681 SSL_CTX_use_psk_identity_hint
682 SSL_get_psk_identity_hint
684 SSL_use_psk_identity_hint
686 [Mika Kousa and Pasi Eronen of Nokia Corporation]
688 *) Add RFC 3161 compliant time stamp request creation, response generation
689 and response verification functionality.
690 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
692 *) Add initial support for TLS extensions, specifically for the server_name
693 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
694 have new members for a host name. The SSL data structure has an
695 additional member SSL_CTX *initial_ctx so that new sessions can be
696 stored in that context to allow for session resumption, even after the
697 SSL has been switched to a new SSL_CTX in reaction to a client's
698 server_name extension.
700 New functions (subject to change):
703 SSL_get_servername_type()
706 New CTRL codes and macros (subject to change):
708 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
709 - SSL_CTX_set_tlsext_servername_callback()
710 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
711 - SSL_CTX_set_tlsext_servername_arg()
712 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
714 openssl s_client has a new '-servername ...' option.
716 openssl s_server has new options '-servername_host ...', '-cert2 ...',
717 '-key2 ...', '-servername_fatal' (subject to change). This allows
718 testing the HostName extension for a specific single host name ('-cert'
719 and '-key' remain fallbacks for handshakes without HostName
720 negotiation). If the unrecogninzed_name alert has to be sent, this by
721 default is a warning; it becomes fatal with the '-servername_fatal'
724 [Peter Sylvester, Remy Allais, Christophe Renou]
726 *) Whirlpool hash implementation is added.
729 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
730 bn(64,32). Because of instruction set limitations it doesn't have
731 any negative impact on performance. This was done mostly in order
732 to make it possible to share assembler modules, such as bn_mul_mont
733 implementations, between 32- and 64-bit builds without hassle.
736 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
737 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
741 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
742 dedicated Montgomery multiplication procedure, is introduced.
743 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
744 "64-bit" performance on certain 32-bit targets.
747 *) New option SSL_OP_NO_COMP to disable use of compression selectively
748 in SSL structures. New SSL ctrl to set maximum send fragment size.
749 Save memory by seeting the I/O buffer sizes dynamically instead of
750 using the maximum available value.
753 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
754 in addition to the text details.
757 *) Very, very preliminary EXPERIMENTAL support for printing of general
758 ASN1 structures. This currently produces rather ugly output and doesn't
759 handle several customised structures at all.
762 *) Integrated support for PVK file format and some related formats such
763 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
764 these in the 'rsa' and 'dsa' utilities.
767 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
770 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
771 place for the (very old) "NETSCAPE" format certificates which are now
772 handled using new ASN1 code equivalents.
775 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
776 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
777 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
780 *) Modify CRL distribution points extension code to print out previously
781 unsupported fields. Enhance extension setting code to allow setting of
785 *) Add print and set support for Issuing Distribution Point CRL extension.
788 *) Change 'Configure' script to enable Camellia by default.
791 Changes between 0.9.8k and 0.9.8l [xx XXX xxxx]
793 *) Handle non-blocking I/O properly in SSL_shutdown() call.
794 [Darryl Miles <darryl-mailinglists@netbauds.net>]
797 [Ilya O. <vrghost@gmail.com>]
799 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
801 *) Don't set val to NULL when freeing up structures, it is freed up by
802 underlying code. If sizeof(void *) > sizeof(long) this can result in
803 zeroing past the valid field. (CVE-2009-0789)
804 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
806 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
807 checked correctly. This would allow some invalid signed attributes to
808 appear to verify correctly. (CVE-2009-0591)
809 [Ivan Nestlerode <inestlerode@us.ibm.com>]
811 *) Reject UniversalString and BMPString types with invalid lengths. This
812 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
813 a legal length. (CVE-2009-0590)
816 *) Set S/MIME signing as the default purpose rather than setting it
817 unconditionally. This allows applications to override it at the store
821 *) Permit restricted recursion of ASN1 strings. This is needed in practice
822 to handle some structures.
825 *) Improve efficiency of mem_gets: don't search whole buffer each time
827 [Jeremy Shapiro <jnshapir@us.ibm.com>]
829 *) New -hex option for openssl rand.
832 *) Print out UTF8String and NumericString when parsing ASN1.
835 *) Support NumericString type for name components.
838 *) Allow CC in the environment to override the automatically chosen
839 compiler. Note that nothing is done to ensure flags work with the
843 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
845 *) Properly check EVP_VerifyFinal() and similar return values
847 [Ben Laurie, Bodo Moeller, Google Security Team]
849 *) Enable TLS extensions by default.
852 *) Allow the CHIL engine to be loaded, whether the application is
853 multithreaded or not. (This does not release the developer from the
854 obligation to set up the dynamic locking callbacks.)
855 [Sander Temme <sander@temme.net>]
857 *) Use correct exit code if there is an error in dgst command.
858 [Steve Henson; problem pointed out by Roland Dirlewanger]
860 *) Tweak Configure so that you need to say "experimental-jpake" to enable
861 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
864 *) Add experimental JPAKE support, including demo authentication in
865 s_client and s_server.
868 *) Set the comparison function in v3_addr_canonize().
869 [Rob Austein <sra@hactrn.net>]
871 *) Add support for XMPP STARTTLS in s_client.
872 [Philip Paeps <philip@freebsd.org>]
874 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
875 to ensure that even with this option, only ciphersuites in the
876 server's preference list will be accepted. (Note that the option
877 applies only when resuming a session, so the earlier behavior was
878 just about the algorithm choice for symmetric cryptography.)
881 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
883 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
884 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
887 *) The fix in 0.9.8c that supposedly got rid of unsafe
888 double-checked locking was incomplete for RSA blinding,
889 addressing just one layer of what turns out to have been
890 doubly unsafe triple-checked locking.
892 So now fix this for real by retiring the MONT_HELPER macro
893 in crypto/rsa/rsa_eay.c.
895 [Bodo Moeller; problem pointed out by Marius Schilder]
897 *) Various precautionary measures:
899 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
901 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
902 (NB: This would require knowledge of the secret session ticket key
903 to exploit, in which case you'd be SOL either way.)
905 - Change bn_nist.c so that it will properly handle input BIGNUMs
906 outside the expected range.
908 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
911 [Neel Mehta, Bodo Moeller]
913 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
914 the load fails. Useful for distros.
915 [Ben Laurie and the FreeBSD team]
917 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
920 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
923 *) Expand ENGINE to support engine supplied SSL client certificate functions.
925 This work was sponsored by Logica.
928 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
929 keystores. Support for SSL/TLS client authentication too.
930 Not compiled unless enable-capieng specified to Configure.
932 This work was sponsored by Logica.
935 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
936 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
937 attribute creation routines such as certifcate requests and PKCS#12
941 Changes between 0.9.8g and 0.9.8h [28 May 2008]
943 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
944 handshake which could lead to a cilent crash as found using the
945 Codenomicon TLS test suite (CVE-2008-1672)
946 [Steve Henson, Mark Cox]
948 *) Fix double free in TLS server name extensions which could lead to
949 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
952 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
954 Clear the error queue to ensure that error entries left from
955 older function calls do not interfere with the correct operation.
956 [Lutz Jaenicke, Erik de Castro Lopo]
958 *) Remove root CA certificates of commercial CAs:
960 The OpenSSL project does not recommend any specific CA and does not
961 have any policy with respect to including or excluding any CA.
962 Therefore it does not make any sense to ship an arbitrary selection
963 of root CA certificates with the OpenSSL software.
966 *) RSA OAEP patches to fix two separate invalid memory reads.
967 The first one involves inputs when 'lzero' is greater than
968 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
969 before the beginning of from). The second one involves inputs where
970 the 'db' section contains nothing but zeroes (there is a one-byte
971 invalid read after the end of 'db').
972 [Ivan Nestlerode <inestlerode@us.ibm.com>]
974 *) Partial backport from 0.9.9-dev:
976 Introduce bn_mul_mont (dedicated Montgomery multiplication
977 procedure) as a candidate for BIGNUM assembler implementation.
978 While 0.9.9-dev uses assembler for various architectures, only
979 x86_64 is available by default here in the 0.9.8 branch, and
980 32-bit x86 is available through a compile-time setting.
982 To try the 32-bit x86 assembler implementation, use Configure
983 option "enable-montasm" (which exists only for this backport).
985 As "enable-montasm" for 32-bit x86 disclaims code stability
986 anyway, in this constellation we activate additional code
987 backported from 0.9.9-dev for further performance improvements,
988 namely BN_from_montgomery_word. (To enable this otherwise,
989 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
991 [Andy Polyakov (backport partially by Bodo Moeller)]
993 *) Add TLS session ticket callback. This allows an application to set
994 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
995 values. This is useful for key rollover for example where several key
996 sets may exist with different names.
999 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1000 This was broken until now in 0.9.8 releases, such that the only way
1001 a registered ENGINE could be used (assuming it initialises
1002 successfully on the host) was to explicitly set it as the default
1003 for the relevant algorithms. This is in contradiction with 0.9.7
1004 behaviour and the documentation. With this fix, when an ENGINE is
1005 registered into a given algorithm's table of implementations, the
1006 'uptodate' flag is reset so that auto-discovery will be used next
1007 time a new context for that algorithm attempts to select an
1009 [Ian Lister (tweaked by Geoff Thorpe)]
1011 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1012 implemention in the following ways:
1014 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1017 Lack of BER streaming support means one pass streaming processing is
1018 only supported if data is detached: setting the streaming flag is
1019 ignored for embedded content.
1021 CMS support is disabled by default and must be explicitly enabled
1022 with the enable-cms configuration option.
1025 *) Update the GMP engine glue to do direct copies between BIGNUM and
1026 mpz_t when openssl and GMP use the same limb size. Otherwise the
1027 existing "conversion via a text string export" trick is still used.
1028 [Paul Sheer <paulsheer@gmail.com>]
1030 *) Zlib compression BIO. This is a filter BIO which compressed and
1031 uncompresses any data passed through it.
1034 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1035 RFC3394 compatible AES key wrapping.
1038 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1039 sets string data without copying. X509_ALGOR_set0() and
1040 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1041 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1042 from an X509_ATTRIBUTE structure optionally checking it occurs only
1043 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1047 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1048 to get the expected BN_FLG_CONSTTIME behavior.
1049 [Bodo Moeller (Google)]
1053 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1054 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1055 - added some more tests to do_tests.pl
1056 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1057 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1058 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1059 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1060 - various changes to netware.pl to enable gcc-cross builds on Win32
1062 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1063 - various changes to fix missing prototype warnings
1064 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1065 - added AES, WHIRLPOOL and CPUID assembler code to build files
1066 - added missing AES assembler make rules to mk1mf.pl
1067 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1068 [Guenter Knauf <eflash@gmx.net>]
1070 *) Implement certificate status request TLS extension defined in RFC3546.
1071 A client can set the appropriate parameters and receive the encoded
1072 OCSP response via a callback. A server can query the supplied parameters
1073 and set the encoded OCSP response in the callback. Add simplified examples
1074 to s_client and s_server.
1077 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1079 *) Fix various bugs:
1080 + Binary incompatibility of ssl_ctx_st structure
1081 + DTLS interoperation with non-compliant servers
1082 + Don't call get_session_cb() without proposed session
1083 + Fix ia64 assembler code
1084 [Andy Polyakov, Steve Henson]
1086 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1088 *) DTLS Handshake overhaul. There were longstanding issues with
1089 OpenSSL DTLS implementation, which were making it impossible for
1090 RFC 4347 compliant client to communicate with OpenSSL server.
1091 Unfortunately just fixing these incompatibilities would "cut off"
1092 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1093 server keeps tolerating non RFC compliant syntax. The opposite is
1094 not true, 0.9.8f client can not communicate with earlier server.
1095 This update even addresses CVE-2007-4995.
1098 *) Changes to avoid need for function casts in OpenSSL: some compilers
1099 (gcc 4.2 and later) reject their use.
1100 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1103 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1104 RFC4507bis. The encrypted ticket format is an encrypted encoded
1105 SSL_SESSION structure, that way new session features are automatically
1108 If a client application caches session in an SSL_SESSION structure
1109 support is transparent because tickets are now stored in the encoded
1112 The SSL_CTX structure automatically generates keys for ticket
1113 protection in servers so again support should be possible
1114 with no application modification.
1116 If a client or server wishes to disable RFC4507 support then the option
1117 SSL_OP_NO_TICKET can be set.
1119 Add a TLS extension debugging callback to allow the contents of any client
1120 or server extensions to be examined.
1122 This work was sponsored by Google.
1125 *) Add initial support for TLS extensions, specifically for the server_name
1126 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1127 have new members for a host name. The SSL data structure has an
1128 additional member SSL_CTX *initial_ctx so that new sessions can be
1129 stored in that context to allow for session resumption, even after the
1130 SSL has been switched to a new SSL_CTX in reaction to a client's
1131 server_name extension.
1133 New functions (subject to change):
1135 SSL_get_servername()
1136 SSL_get_servername_type()
1139 New CTRL codes and macros (subject to change):
1141 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1142 - SSL_CTX_set_tlsext_servername_callback()
1143 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1144 - SSL_CTX_set_tlsext_servername_arg()
1145 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1147 openssl s_client has a new '-servername ...' option.
1149 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1150 '-key2 ...', '-servername_fatal' (subject to change). This allows
1151 testing the HostName extension for a specific single host name ('-cert'
1152 and '-key' remain fallbacks for handshakes without HostName
1153 negotiation). If the unrecogninzed_name alert has to be sent, this by
1154 default is a warning; it becomes fatal with the '-servername_fatal'
1157 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1159 *) Add AES and SSE2 assembly language support to VC++ build.
1162 *) Mitigate attack on final subtraction in Montgomery reduction.
1165 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1166 (which previously caused an internal error).
1169 *) Squeeze another 10% out of IGE mode when in != out.
1172 *) AES IGE mode speedup.
1173 [Dean Gaudet (Google)]
1175 *) Add the Korean symmetric 128-bit cipher SEED (see
1176 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1177 add SEED ciphersuites from RFC 4162:
1179 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1180 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1181 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1182 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1184 To minimize changes between patchlevels in the OpenSSL 0.9.8
1185 series, SEED remains excluded from compilation unless OpenSSL
1186 is configured with 'enable-seed'.
1187 [KISA, Bodo Moeller]
1189 *) Mitigate branch prediction attacks, which can be practical if a
1190 single processor is shared, allowing a spy process to extract
1191 information. For detailed background information, see
1192 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1193 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1194 and Necessary Software Countermeasures"). The core of the change
1195 are new versions BN_div_no_branch() and
1196 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1197 respectively, which are slower, but avoid the security-relevant
1198 conditional branches. These are automatically called by BN_div()
1199 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1200 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1201 remove a conditional branch.
1203 BN_FLG_CONSTTIME is the new name for the previous
1204 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1205 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1206 in the exponent causes BN_mod_exp_mont() to use the alternative
1207 implementation in BN_mod_exp_mont_consttime().) The old name
1208 remains as a deprecated alias.
1210 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1211 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1212 constant-time implementations for more than just exponentiation.
1213 Here too the old name is kept as a deprecated alias.
1215 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1216 the BN_BLINDING structure gets an independent copy of the
1217 modulus. This means that the previous "BIGNUM *m" argument to
1218 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1219 essentially becomes "const BIGNUM *m", although we can't actually
1220 change this in the header file before 0.9.9. It allows
1221 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1222 enable BN_FLG_CONSTTIME.
1224 [Matthew D Wood (Intel Corp)]
1226 *) In the SSL/TLS server implementation, be strict about session ID
1227 context matching (which matters if an application uses a single
1228 external cache for different purposes). Previously,
1229 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1230 set. This did ensure strict client verification, but meant that,
1231 with applications using a single external cache for quite
1232 different requirements, clients could circumvent ciphersuite
1233 restrictions for a given session ID context by starting a session
1234 in a different context.
1237 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1238 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1239 authentication-only ciphersuites.
1242 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1243 not complete and could lead to a possible single byte overflow
1244 (CVE-2007-5135) [Ben Laurie]
1246 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1248 *) Since AES128 and AES256 (and similarly Camellia128 and
1249 Camellia256) share a single mask bit in the logic of
1250 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1251 kludge to work properly if AES128 is available and AES256 isn't
1252 (or if Camellia128 is available and Camellia256 isn't).
1255 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1256 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1257 When a point or a seed is encoded in a BIT STRING, we need to
1258 prevent the removal of trailing zero bits to get the proper DER
1259 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1260 of a NamedBitList, for which trailing 0 bits need to be removed.)
1263 *) Have SSL/TLS server implementation tolerate "mismatched" record
1264 protocol version while receiving ClientHello even if the
1265 ClientHello is fragmented. (The server can't insist on the
1266 particular protocol version it has chosen before the ServerHello
1267 message has informed the client about his choice.)
1270 *) Add RFC 3779 support.
1271 [Rob Austein for ARIN, Ben Laurie]
1273 *) Load error codes if they are not already present instead of using a
1274 static variable. This allows them to be cleanly unloaded and reloaded.
1275 Improve header file function name parsing.
1278 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1279 or CAPABILITY handshake as required by RFCs.
1282 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1284 *) Introduce limits to prevent malicious keys being able to
1285 cause a denial of service. (CVE-2006-2940)
1286 [Steve Henson, Bodo Moeller]
1288 *) Fix ASN.1 parsing of certain invalid structures that can result
1289 in a denial of service. (CVE-2006-2937) [Steve Henson]
1291 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1292 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1294 *) Fix SSL client code which could crash if connecting to a
1295 malicious SSLv2 server. (CVE-2006-4343)
1296 [Tavis Ormandy and Will Drewry, Google Security Team]
1298 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1299 match only those. Before that, "AES256-SHA" would be interpreted
1300 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1301 the same strength classification in 0.9.7h) as we currently only
1302 have a single AES bit in the ciphersuite description bitmap.
1303 That change, however, also applied to ciphersuite strings such as
1304 "RC4-MD5" that intentionally matched multiple ciphersuites --
1305 namely, SSL 2.0 ciphersuites in addition to the more common ones
1306 from SSL 3.0/TLS 1.0.
1308 So we change the selection algorithm again: Naming an explicit
1309 ciphersuite selects this one ciphersuite, and any other similar
1310 ciphersuite (same bitmap) from *other* protocol versions.
1311 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1312 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1314 Since SSL 2.0 does not have any ciphersuites for which the
1315 128/256 bit distinction would be relevant, this works for now.
1316 The proper fix will be to use different bits for AES128 and
1317 AES256, which would have avoided the problems from the beginning;
1318 however, bits are scarce, so we can only do this in a new release
1319 (not just a patchlevel) when we can change the SSL_CIPHER
1320 definition to split the single 'unsigned long mask' bitmap into
1321 multiple values to extend the available space.
1325 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1327 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1328 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1330 *) Add AES IGE and biIGE modes.
1333 *) Change the Unix randomness entropy gathering to use poll() when
1334 possible instead of select(), since the latter has some
1335 undesirable limitations.
1336 [Darryl Miles via Richard Levitte and Bodo Moeller]
1338 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1339 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1340 cannot be implicitly activated as part of, e.g., the "AES" alias.
1341 However, please upgrade to OpenSSL 0.9.9[-dev] for
1342 non-experimental use of the ECC ciphersuites to get TLS extension
1343 support, which is required for curve and point format negotiation
1344 to avoid potential handshake problems.
1347 *) Disable rogue ciphersuites:
1349 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1350 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1351 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1353 The latter two were purportedly from
1354 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1357 Also deactivate the remaining ciphersuites from
1358 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1359 unofficial, and the ID has long expired.
1362 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1363 dual-core machines) and other potential thread-safety issues.
1366 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1367 versions), which is now available for royalty-free use
1368 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1369 Also, add Camellia TLS ciphersuites from RFC 4132.
1371 To minimize changes between patchlevels in the OpenSSL 0.9.8
1372 series, Camellia remains excluded from compilation unless OpenSSL
1373 is configured with 'enable-camellia'.
1376 *) Disable the padding bug check when compression is in use. The padding
1377 bug check assumes the first packet is of even length, this is not
1378 necessarily true if compresssion is enabled and can result in false
1379 positives causing handshake failure. The actual bug test is ancient
1380 code so it is hoped that implementations will either have fixed it by
1381 now or any which still have the bug do not support compression.
1384 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1386 *) When applying a cipher rule check to see if string match is an explicit
1387 cipher suite and only match that one cipher suite if it is.
1390 *) Link in manifests for VC++ if needed.
1391 [Austin Ziegler <halostatue@gmail.com>]
1393 *) Update support for ECC-based TLS ciphersuites according to
1394 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1395 TLS extensions, which are supported starting with the 0.9.9
1396 branch, not in the OpenSSL 0.9.8 branch).
1399 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1400 opaque EVP_CIPHER_CTX handling.
1403 *) Fixes and enhancements to zlib compression code. We now only use
1404 "zlib1.dll" and use the default __cdecl calling convention on Win32
1405 to conform with the standards mentioned here:
1406 http://www.zlib.net/DLL_FAQ.txt
1407 Static zlib linking now works on Windows and the new --with-zlib-include
1408 --with-zlib-lib options to Configure can be used to supply the location
1409 of the headers and library. Gracefully handle case where zlib library
1413 *) Several fixes and enhancements to the OID generation code. The old code
1414 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1415 handle numbers larger than ULONG_MAX, truncated printing and had a
1416 non standard OBJ_obj2txt() behaviour.
1419 *) Add support for building of engines under engine/ as shared libraries
1420 under VC++ build system.
1423 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1424 Hopefully, we will not see any false combination of paths any more.
1427 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1429 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1430 (part of SSL_OP_ALL). This option used to disable the
1431 countermeasure against man-in-the-middle protocol-version
1432 rollback in the SSL 2.0 server implementation, which is a bad
1433 idea. (CVE-2005-2969)
1435 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1436 for Information Security, National Institute of Advanced Industrial
1437 Science and Technology [AIST], Japan)]
1439 *) Add two function to clear and return the verify parameter flags.
1442 *) Keep cipherlists sorted in the source instead of sorting them at
1443 runtime, thus removing the need for a lock.
1446 *) Avoid some small subgroup attacks in Diffie-Hellman.
1447 [Nick Mathewson and Ben Laurie]
1449 *) Add functions for well-known primes.
1452 *) Extended Windows CE support.
1453 [Satoshi Nakamura and Andy Polyakov]
1455 *) Initialize SSL_METHOD structures at compile time instead of during
1456 runtime, thus removing the need for a lock.
1459 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1460 attempting to decrypt each encrypted key in turn. Add support to
1464 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1466 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1469 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1472 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1473 key into the same file any more.
1476 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1479 *) Add -utf8 command line and config file option to 'ca'.
1480 [Stefan <stf@udoma.org]
1482 *) Removed the macro des_crypt(), as it seems to conflict with some
1483 libraries. Use DES_crypt().
1486 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1487 involves renaming the source and generated shared-libs for
1488 both. The engines will accept the corrected or legacy ids
1489 ('ncipher' and '4758_cca' respectively) when binding. NB,
1490 this only applies when building 'shared'.
1491 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1493 *) Add attribute functions to EVP_PKEY structure. Modify
1494 PKCS12_create() to recognize a CSP name attribute and
1495 use it. Make -CSP option work again in pkcs12 utility.
1498 *) Add new functionality to the bn blinding code:
1499 - automatic re-creation of the BN_BLINDING parameters after
1500 a fixed number of uses (currently 32)
1501 - add new function for parameter creation
1502 - introduce flags to control the update behaviour of the
1503 BN_BLINDING parameters
1504 - hide BN_BLINDING structure
1505 Add a second BN_BLINDING slot to the RSA structure to improve
1506 performance when a single RSA object is shared among several
1510 *) Add support for DTLS.
1511 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1513 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1514 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1517 *) Remove buggy and incompletet DH cert support from
1518 ssl/ssl_rsa.c and ssl/s3_both.c
1521 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1522 the apps/openssl applications.
1525 *) Compile clean with "-Wall -Wmissing-prototypes
1526 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1527 DEBUG_SAFESTACK must also be set.
1530 *) Change ./Configure so that certain algorithms can be disabled by default.
1531 The new counterpiece to "no-xxx" is "enable-xxx".
1533 The patented RC5 and MDC2 algorithms will now be disabled unless
1534 "enable-rc5" and "enable-mdc2", respectively, are specified.
1536 (IDEA remains enabled despite being patented. This is because IDEA
1537 is frequently required for interoperability, and there is no license
1538 fee for non-commercial use. As before, "no-idea" can be used to
1539 avoid this algorithm.)
1543 *) Add processing of proxy certificates (see RFC 3820). This work was
1544 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1545 EGEE (Enabling Grids for E-science in Europe).
1548 *) RC4 performance overhaul on modern architectures/implementations, such
1549 as Intel P4, IA-64 and AMD64.
1552 *) New utility extract-section.pl. This can be used specify an alternative
1553 section number in a pod file instead of having to treat each file as
1554 a separate case in Makefile. This can be done by adding two lines to the
1557 =for comment openssl_section:XXX
1559 The blank line is mandatory.
1563 *) New arguments -certform, -keyform and -pass for s_client and s_server
1564 to allow alternative format key and certificate files and passphrase
1568 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1569 update associated structures and add various utility functions.
1571 Add new policy related verify parameters, include policy checking in
1572 standard verify code. Enhance 'smime' application with extra parameters
1573 to support policy checking and print out.
1576 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1577 Nehemiah processors. These extensions support AES encryption in hardware
1578 as well as RNG (though RNG support is currently disabled).
1579 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1581 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1584 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1585 [Andy Polyakov and a number of other people]
1587 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1588 implementation contributed by IBM.
1589 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1591 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1592 exponent rather than 'unsigned long'. There is a corresponding change to
1593 the new 'rsa_keygen' element of the RSA_METHOD structure.
1594 [Jelte Jansen, Geoff Thorpe]
1596 *) Functionality for creating the initial serial number file is now
1597 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1599 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1600 number file to 1, which is bound to cause problems. To avoid
1601 the problems while respecting compatibility between different 0.9.7
1602 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1603 CA.pl for serial number initialization. With the new release 0.9.8,
1604 we can fix the problem directly in the 'ca' utility.)
1607 *) Reduced header interdepencies by declaring more opaque objects in
1608 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1609 give fewer recursive includes, which could break lazy source code - so
1610 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1611 developers should define this symbol when building and using openssl to
1612 ensure they track the recommended behaviour, interfaces, [etc], but
1613 backwards-compatible behaviour prevails when this isn't defined.
1616 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1619 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1620 This will generate a random key of the appropriate length based on the
1621 cipher context. The EVP_CIPHER can provide its own random key generation
1622 routine to support keys of a specific form. This is used in the des and
1623 3des routines to generate a key of the correct parity. Update S/MIME
1624 code to use new functions and hence generate correct parity DES keys.
1625 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1626 valid (weak or incorrect parity).
1629 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1630 as looking them up. This is useful when the verified structure may contain
1631 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1632 present unless the new PKCS7_NO_CRL flag is asserted.
1635 *) Extend ASN1 oid configuration module. It now additionally accepts the
1638 shortName = some long name, 1.2.3.4
1641 *) Reimplemented the BN_CTX implementation. There is now no more static
1642 limitation on the number of variables it can handle nor the depth of the
1643 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1644 information can now expand as required, and rather than having a single
1645 static array of bignums, BN_CTX now uses a linked-list of such arrays
1646 allowing it to expand on demand whilst maintaining the usefulness of
1647 BN_CTX's "bundling".
1650 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1651 to allow all RSA operations to function using a single BN_CTX.
1654 *) Preliminary support for certificate policy evaluation and checking. This
1655 is initially intended to pass the tests outlined in "Conformance Testing
1656 of Relying Party Client Certificate Path Processing Logic" v1.07.
1659 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1660 remained unused and not that useful. A variety of other little bignum
1661 tweaks and fixes have also been made continuing on from the audit (see
1665 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1666 associated ASN1, EVP and SSL functions and old ASN1 macros.
1669 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1670 and this should never fail. So the return value from the use of
1671 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1672 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1675 *) BN_CTX_get() should return zero-valued bignums, providing the same
1676 initialised value as BN_new().
1677 [Geoff Thorpe, suggested by Ulf Möller]
1679 *) Support for inhibitAnyPolicy certificate extension.
1682 *) An audit of the BIGNUM code is underway, for which debugging code is
1683 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1684 is considered valid when processing BIGNUMs, and causes execution to
1685 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1686 further steps are taken to deliberately pollute unused data in BIGNUM
1687 structures to try and expose faulty code further on. For now, openssl will
1688 (in its default mode of operation) continue to tolerate the inconsistent
1689 forms that it has tolerated in the past, but authors and packagers should
1690 consider trying openssl and their own applications when compiled with
1691 these debugging symbols defined. It will help highlight potential bugs in
1692 their own code, and will improve the test coverage for OpenSSL itself. At
1693 some point, these tighter rules will become openssl's default to improve
1694 maintainability, though the assert()s and other overheads will remain only
1695 in debugging configurations. See bn.h for more details.
1696 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1698 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1699 that can only be obtained through BN_CTX_new() (which implicitly
1700 initialises it). The presence of this function only made it possible
1701 to overwrite an existing structure (and cause memory leaks).
1704 *) Because of the callback-based approach for implementing LHASH as a
1705 template type, lh_insert() adds opaque objects to hash-tables and
1706 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1707 to clean up those corresponding objects before destroying the hash table
1708 (and losing the object pointers). So some over-zealous constifications in
1709 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1710 objects as "const" and the lh_doall[_arg] callback wrappers are not
1711 prototyped to have "const" restrictions on the object pointers they are
1712 given (and so aren't required to cast them away any more).
1715 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1716 (speed) prefers to use its own implementation. The two implementations
1717 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1718 its object type properly exposed (MS_TM) instead of casting to/from "char
1719 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1720 aren't necessarily the greatest nomenclatures - but this is what was used
1721 internally to the implementation so I've used that for now.
1724 *) Ensure that deprecated functions do not get compiled when
1725 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1726 the self-tests were still using deprecated key-generation functions so
1727 these have been updated also.
1730 *) Reorganise PKCS#7 code to separate the digest location functionality
1731 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1732 New function PKCS7_set_digest() to set the digest type for PKCS#7
1733 digestedData type. Add additional code to correctly generate the
1734 digestedData type and add support for this type in PKCS7 initialization
1738 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1739 structure of type "other".
1742 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1743 sure the loop does correctly stop and breaking ("division by zero")
1744 modulus operations are not performed. The (pre-generated) prime
1745 table crypto/bn/bn_prime.h was already correct, but it could not be
1746 re-generated on some platforms because of the "division by zero"
1747 situation in the script.
1748 [Ralf S. Engelschall]
1750 *) Update support for ECC-based TLS ciphersuites according to
1751 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1752 SHA-1 now is only used for "small" curves (where the
1753 representation of a field element takes up to 24 bytes); for
1754 larger curves, the field element resulting from ECDH is directly
1755 used as premaster secret.
1756 [Douglas Stebila (Sun Microsystems Laboratories)]
1758 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1759 curve secp160r1 to the tests.
1760 [Douglas Stebila (Sun Microsystems Laboratories)]
1762 *) Add the possibility to load symbols globally with DSO.
1763 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1765 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1766 control of the error stack.
1769 *) Add support for STORE in ENGINE.
1772 *) Add the STORE type. The intention is to provide a common interface
1773 to certificate and key stores, be they simple file-based stores, or
1774 HSM-type store, or LDAP stores, or...
1775 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1778 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1779 pass a list of arguments to any function as well as provide a way
1780 for a function to pass data back to the caller.
1783 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1784 works like BUF_strdup() but can be used to duplicate a portion of
1785 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1789 *) Add the function sk_find_ex() which works like sk_find(), but will
1790 return an index to an element even if an exact match couldn't be
1791 found. The index is guaranteed to point at the element where the
1792 searched-for key would be inserted to preserve sorting order.
1795 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1796 takes an extra flags argument for optional functionality. Currently,
1797 the following flags are defined:
1799 OBJ_BSEARCH_VALUE_ON_NOMATCH
1800 This one gets OBJ_bsearch_ex() to return a pointer to the first
1801 element where the comparing function returns a negative or zero
1804 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1805 This one gets OBJ_bsearch_ex() to return a pointer to the first
1806 element where the comparing function returns zero. This is useful
1807 if there are more than one element where the comparing function
1811 *) Make it possible to create self-signed certificates with 'openssl ca'
1812 in such a way that the self-signed certificate becomes part of the
1813 CA database and uses the same mechanisms for serial number generation
1814 as all other certificate signing. The new flag '-selfsign' enables
1815 this functionality. Adapt CA.sh and CA.pl.in.
1818 *) Add functionality to check the public key of a certificate request
1819 against a given private. This is useful to check that a certificate
1820 request can be signed by that key (self-signing).
1823 *) Make it possible to have multiple active certificates with the same
1824 subject in the CA index file. This is done only if the keyword
1825 'unique_subject' is set to 'no' in the main CA section (default
1826 if 'CA_default') of the configuration file. The value is saved
1827 with the database itself in a separate index attribute file,
1828 named like the index file with '.attr' appended to the name.
1831 *) Generate muti valued AVAs using '+' notation in config files for
1835 *) Support for nameConstraints certificate extension.
1838 *) Support for policyConstraints certificate extension.
1841 *) Support for policyMappings certificate extension.
1844 *) Make sure the default DSA_METHOD implementation only uses its
1845 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1846 and change its own handlers to be NULL so as to remove unnecessary
1847 indirection. This lets alternative implementations fallback to the
1848 default implementation more easily.
1851 *) Support for directoryName in GeneralName related extensions
1855 *) Make it possible to link applications using Makefile.shared.
1856 Make that possible even when linking against static libraries!
1859 *) Support for single pass processing for S/MIME signing. This now
1860 means that S/MIME signing can be done from a pipe, in addition
1861 cleartext signing (multipart/signed type) is effectively streaming
1862 and the signed data does not need to be all held in memory.
1864 This is done with a new flag PKCS7_STREAM. When this flag is set
1865 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1866 is done after the data is output (and digests calculated) in
1867 SMIME_write_PKCS7().
1870 *) Add full support for -rpath/-R, both in shared libraries and
1871 applications, at least on the platforms where it's known how
1875 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1876 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1877 will now compute a table of multiples of the generator that
1878 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1879 faster (notably in the case of a single point multiplication,
1880 scalar * generator).
1881 [Nils Larsch, Bodo Moeller]
1883 *) IPv6 support for certificate extensions. The various extensions
1884 which use the IP:a.b.c.d can now take IPv6 addresses using the
1885 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1889 *) Added an ENGINE that implements RSA by performing private key
1890 exponentiations with the GMP library. The conversions to and from
1891 GMP's mpz_t format aren't optimised nor are any montgomery forms
1892 cached, and on x86 it appears OpenSSL's own performance has caught up.
1893 However there are likely to be other architectures where GMP could
1894 provide a boost. This ENGINE is not built in by default, but it can be
1895 specified at Configure time and should be accompanied by the necessary
1896 linker additions, eg;
1897 ./config -DOPENSSL_USE_GMP -lgmp
1900 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1901 testing availability of engines with "-t" - the old behaviour is
1902 produced by increasing the feature's verbosity with "-tt".
1905 *) ECDSA routines: under certain error conditions uninitialized BN objects
1906 could be freed. Solution: make sure initialization is performed early
1907 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1911 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1912 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1913 software implementations. For DSA and DH, parameter generation can
1914 also be overriden by providing the appropriate method callbacks.
1917 *) Change the "progress" mechanism used in key-generation and
1918 primality testing to functions that take a new BN_GENCB pointer in
1919 place of callback/argument pairs. The new API functions have "_ex"
1920 postfixes and the older functions are reimplemented as wrappers for
1921 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1922 declarations of the old functions to help (graceful) attempts to
1923 migrate to the new functions. Also, the new key-generation API
1924 functions operate on a caller-supplied key-structure and return
1925 success/failure rather than returning a key or NULL - this is to
1926 help make "keygen" another member function of RSA_METHOD etc.
1928 Example for using the new callback interface:
1930 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1934 BN_GENCB_set(&my_cb, my_callback, my_arg);
1936 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1937 /* For the meaning of a, b in calls to my_callback(), see the
1938 * documentation of the function that calls the callback.
1939 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1940 * my_callback should return 1 if it wants BN_is_prime_ex()
1941 * to continue, or 0 to stop.
1946 *) Change the ZLIB compression method to be stateful, and make it
1947 available to TLS with the number defined in
1948 draft-ietf-tls-compression-04.txt.
1951 *) Add the ASN.1 structures and functions for CertificatePair, which
1952 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1954 CertificatePair ::= SEQUENCE {
1955 forward [0] Certificate OPTIONAL,
1956 reverse [1] Certificate OPTIONAL,
1957 -- at least one of the pair shall be present -- }
1959 Also implement the PEM functions to read and write certificate
1960 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1962 This needed to be defined, mostly for the sake of the LDAP
1963 attribute crossCertificatePair, but may prove useful elsewhere as
1967 *) Make it possible to inhibit symlinking of shared libraries in
1968 Makefile.shared, for Cygwin's sake.
1971 *) Extend the BIGNUM API by creating a function
1972 void BN_set_negative(BIGNUM *a, int neg);
1973 and a macro that behave like
1974 int BN_is_negative(const BIGNUM *a);
1976 to avoid the need to access 'a->neg' directly in applications.
1979 *) Implement fast modular reduction for pseudo-Mersenne primes
1980 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1981 EC_GROUP_new_curve_GFp() will now automatically use this
1983 [Nils Larsch <nla@trustcenter.de>]
1985 *) Add new lock type (CRYPTO_LOCK_BN).
1988 *) Change the ENGINE framework to automatically load engines
1989 dynamically from specific directories unless they could be
1990 found to already be built in or loaded. Move all the
1991 current engines except for the cryptodev one to a new
1993 The engines in engines/ are built as shared libraries if
1994 the "shared" options was given to ./Configure or ./config.
1995 Otherwise, they are inserted in libcrypto.a.
1996 /usr/local/ssl/engines is the default directory for dynamic
1997 engines, but that can be overriden at configure time through
1998 the usual use of --prefix and/or --openssldir, and at run
1999 time with the environment variable OPENSSL_ENGINES.
2000 [Geoff Thorpe and Richard Levitte]
2002 *) Add Makefile.shared, a helper makefile to build shared
2003 libraries. Addapt Makefile.org.
2006 *) Add version info to Win32 DLLs.
2007 [Peter 'Luna' Runestig" <peter@runestig.com>]
2009 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2010 can be added using this API to created arbitrary PKCS#12
2011 files while avoiding the low level API.
2013 New options to PKCS12_create(), key or cert can be NULL and
2014 will then be omitted from the output file. The encryption
2015 algorithm NIDs can be set to -1 for no encryption, the mac
2016 iteration count can be set to 0 to omit the mac.
2018 Enhance pkcs12 utility by making the -nokeys and -nocerts
2019 options work when creating a PKCS#12 file. New option -nomac
2020 to omit the mac, NONE can be set for an encryption algorithm.
2021 New code is modified to use the enhanced PKCS12_create()
2022 instead of the low level API.
2025 *) Extend ASN1 encoder to support indefinite length constructed
2026 encoding. This can output sequences tags and octet strings in
2027 this form. Modify pk7_asn1.c to support indefinite length
2028 encoding. This is experimental and needs additional code to
2029 be useful, such as an ASN1 bio and some enhanced streaming
2032 Extend template encode functionality so that tagging is passed
2033 down to the template encoder.
2036 *) Let 'openssl req' fail if an argument to '-newkey' is not
2037 recognized instead of using RSA as a default.
2040 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2041 As these are not official, they are not included in "ALL";
2042 the "ECCdraft" ciphersuite group alias can be used to select them.
2043 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2045 *) Add ECDH engine support.
2046 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2048 *) Add ECDH in new directory crypto/ecdh/.
2049 [Douglas Stebila (Sun Microsystems Laboratories)]
2051 *) Let BN_rand_range() abort with an error after 100 iterations
2052 without success (which indicates a broken PRNG).
2055 *) Change BN_mod_sqrt() so that it verifies that the input value
2056 is really the square of the return value. (Previously,
2057 BN_mod_sqrt would show GIGO behaviour.)
2060 *) Add named elliptic curves over binary fields from X9.62, SECG,
2061 and WAP/WTLS; add OIDs that were still missing.
2063 [Sheueling Chang Shantz and Douglas Stebila
2064 (Sun Microsystems Laboratories)]
2066 *) Extend the EC library for elliptic curves over binary fields
2067 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2070 EC_GF2m_simple_method
2074 EC_GROUP_new_curve_GF2m
2075 EC_GROUP_set_curve_GF2m
2076 EC_GROUP_get_curve_GF2m
2077 EC_POINT_set_affine_coordinates_GF2m
2078 EC_POINT_get_affine_coordinates_GF2m
2079 EC_POINT_set_compressed_coordinates_GF2m
2081 Point compression for binary fields is disabled by default for
2082 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2085 As binary polynomials are represented as BIGNUMs, various members
2086 of the EC_GROUP and EC_POINT data structures can be shared
2087 between the implementations for prime fields and binary fields;
2088 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2089 are essentially identical to their ..._GFp counterparts.
2090 (For simplicity, the '..._GFp' prefix has been dropped from
2091 various internal method names.)
2093 An internal 'field_div' method (similar to 'field_mul' and
2094 'field_sqr') has been added; this is used only for binary fields.
2096 [Sheueling Chang Shantz and Douglas Stebila
2097 (Sun Microsystems Laboratories)]
2099 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2100 through methods ('mul', 'precompute_mult').
2102 The generic implementations (now internally called 'ec_wNAF_mul'
2103 and 'ec_wNAF_precomputed_mult') remain the default if these
2104 methods are undefined.
2106 [Sheueling Chang Shantz and Douglas Stebila
2107 (Sun Microsystems Laboratories)]
2109 *) New function EC_GROUP_get_degree, which is defined through
2110 EC_METHOD. For curves over prime fields, this returns the bit
2111 length of the modulus.
2113 [Sheueling Chang Shantz and Douglas Stebila
2114 (Sun Microsystems Laboratories)]
2116 *) New functions EC_GROUP_dup, EC_POINT_dup.
2117 (These simply call ..._new and ..._copy).
2119 [Sheueling Chang Shantz and Douglas Stebila
2120 (Sun Microsystems Laboratories)]
2122 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2123 Polynomials are represented as BIGNUMs (where the sign bit is not
2124 used) in the following functions [macros]:
2127 BN_GF2m_sub [= BN_GF2m_add]
2128 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2129 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2130 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2132 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2133 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2134 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2135 BN_GF2m_cmp [= BN_ucmp]
2137 (Note that only the 'mod' functions are actually for fields GF(2^m).
2138 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2140 For some functions, an the irreducible polynomial defining a
2141 field can be given as an 'unsigned int[]' with strictly
2142 decreasing elements giving the indices of those bits that are set;
2143 i.e., p[] represents the polynomial
2144 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2146 p[0] > p[1] > ... > p[k] = 0.
2147 This applies to the following functions:
2152 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2153 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2155 BN_GF2m_mod_sqrt_arr
2156 BN_GF2m_mod_solve_quad_arr
2160 Conversion can be performed by the following functions:
2165 bntest.c has additional tests for binary polynomial arithmetic.
2167 Two implementations for BN_GF2m_mod_div() are available.
2168 The default algorithm simply uses BN_GF2m_mod_inv() and
2169 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2170 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2171 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2173 [Sheueling Chang Shantz and Douglas Stebila
2174 (Sun Microsystems Laboratories)]
2176 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2177 functionality is disabled at compile-time.
2178 [Douglas Stebila <douglas.stebila@sun.com>]
2180 *) Change default behaviour of 'openssl asn1parse' so that more
2181 information is visible when viewing, e.g., a certificate:
2183 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2184 mode the content of non-printable OCTET STRINGs is output in a
2185 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2186 avoid the appearance of a printable string.
2187 [Nils Larsch <nla@trustcenter.de>]
2189 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2191 EC_GROUP_set_asn1_flag()
2192 EC_GROUP_get_asn1_flag()
2193 EC_GROUP_set_point_conversion_form()
2194 EC_GROUP_get_point_conversion_form()
2195 These control ASN1 encoding details:
2196 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2197 has been set to OPENSSL_EC_NAMED_CURVE.
2198 - Points are encoded in uncompressed form by default; options for
2199 asn1_for are as for point2oct, namely
2200 POINT_CONVERSION_COMPRESSED
2201 POINT_CONVERSION_UNCOMPRESSED
2202 POINT_CONVERSION_HYBRID
2204 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2207 EC_GROUP_get0_seed()
2208 EC_GROUP_get_seed_len()
2209 This is used only for ASN1 purposes (so far).
2210 [Nils Larsch <nla@trustcenter.de>]
2212 *) Add 'field_type' member to EC_METHOD, which holds the NID
2213 of the appropriate field type OID. The new function
2214 EC_METHOD_get_field_type() returns this value.
2215 [Nils Larsch <nla@trustcenter.de>]
2220 EC_POINT_point2hex()
2221 EC_POINT_hex2point()
2222 providing useful interfaces to EC_POINT_point2oct() and
2223 EC_POINT_oct2point().
2224 [Nils Larsch <nla@trustcenter.de>]
2226 *) Change internals of the EC library so that the functions
2227 EC_GROUP_set_generator()
2228 EC_GROUP_get_generator()
2229 EC_GROUP_get_order()
2230 EC_GROUP_get_cofactor()
2231 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2232 to methods, which would lead to unnecessary code duplication when
2233 adding different types of curves.
2234 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2236 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2237 arithmetic, and such that modified wNAFs are generated
2238 (which avoid length expansion in many cases).
2241 *) Add a function EC_GROUP_check_discriminant() (defined via
2242 EC_METHOD) that verifies that the curve discriminant is non-zero.
2244 Add a function EC_GROUP_check() that makes some sanity tests
2245 on a EC_GROUP, its generator and order. This includes
2246 EC_GROUP_check_discriminant().
2247 [Nils Larsch <nla@trustcenter.de>]
2249 *) Add ECDSA in new directory crypto/ecdsa/.
2251 Add applications 'openssl ecparam' and 'openssl ecdsa'
2252 (these are based on 'openssl dsaparam' and 'openssl dsa').
2254 ECDSA support is also included in various other files across the
2255 library. Most notably,
2256 - 'openssl req' now has a '-newkey ecdsa:file' option;
2257 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2258 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2259 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2260 them suitable for ECDSA where domain parameters must be
2261 extracted before the specific public key;
2262 - ECDSA engine support has been added.
2263 [Nils Larsch <nla@trustcenter.de>]
2265 *) Include some named elliptic curves, and add OIDs from X9.62,
2266 SECG, and WAP/WTLS. Each curve can be obtained from the new
2268 EC_GROUP_new_by_curve_name(),
2269 and the list of available named curves can be obtained with
2270 EC_get_builtin_curves().
2271 Also add a 'curve_name' member to EC_GROUP objects, which can be
2273 EC_GROUP_set_curve_name()
2274 EC_GROUP_get_curve_name()
2275 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2277 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2278 was actually never needed) and in BN_mul(). The removal in BN_mul()
2279 required a small change in bn_mul_part_recursive() and the addition
2280 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2281 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2282 bn_sub_words() and bn_add_words() except they take arrays with
2286 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
2288 *) In the SSL/TLS server implementation, be strict about session ID
2289 context matching (which matters if an application uses a single
2290 external cache for different purposes). Previously,
2291 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2292 set. This did ensure strict client verification, but meant that,
2293 with applications using a single external cache for quite
2294 different requirements, clients could circumvent ciphersuite
2295 restrictions for a given session ID context by starting a session
2296 in a different context.
2299 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2301 *) Cleanse PEM buffers before freeing them since they may contain
2303 [Benjamin Bennett <ben@psc.edu>]
2305 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2306 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2307 authentication-only ciphersuites.
2310 *) Since AES128 and AES256 share a single mask bit in the logic of
2311 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2312 kludge to work properly if AES128 is available and AES256 isn't.
2315 *) Expand security boundary to match 1.1.1 module.
2318 *) Remove redundant features: hash file source, editing of test vectors
2319 modify fipsld to use external fips_premain.c signature.
2322 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2323 run algorithm test programs.
2326 *) Make algorithm test programs more tolerant of whitespace.
2329 *) Have SSL/TLS server implementation tolerate "mismatched" record
2330 protocol version while receiving ClientHello even if the
2331 ClientHello is fragmented. (The server can't insist on the
2332 particular protocol version it has chosen before the ServerHello
2333 message has informed the client about his choice.)
2336 *) Load error codes if they are not already present instead of using a
2337 static variable. This allows them to be cleanly unloaded and reloaded.
2340 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2342 *) Introduce limits to prevent malicious keys being able to
2343 cause a denial of service. (CVE-2006-2940)
2344 [Steve Henson, Bodo Moeller]
2346 *) Fix ASN.1 parsing of certain invalid structures that can result
2347 in a denial of service. (CVE-2006-2937) [Steve Henson]
2349 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2350 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2352 *) Fix SSL client code which could crash if connecting to a
2353 malicious SSLv2 server. (CVE-2006-4343)
2354 [Tavis Ormandy and Will Drewry, Google Security Team]
2356 *) Change ciphersuite string processing so that an explicit
2357 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2358 will no longer include "AES128-SHA"), and any other similar
2359 ciphersuite (same bitmap) from *other* protocol versions (so that
2360 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2361 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2362 changes from 0.9.8b and 0.9.8d.
2365 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2367 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2368 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2370 *) Change the Unix randomness entropy gathering to use poll() when
2371 possible instead of select(), since the latter has some
2372 undesirable limitations.
2373 [Darryl Miles via Richard Levitte and Bodo Moeller]
2375 *) Disable rogue ciphersuites:
2377 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2378 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2379 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2381 The latter two were purportedly from
2382 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2385 Also deactive the remaining ciphersuites from
2386 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2387 unofficial, and the ID has long expired.
2390 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2391 dual-core machines) and other potential thread-safety issues.
2394 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2396 *) Adapt fipsld and the build system to link against the validated FIPS
2397 module in FIPS mode.
2400 *) Fixes for VC++ 2005 build under Windows.
2403 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2404 from a Windows bash shell such as MSYS. It is autodetected from the
2405 "config" script when run from a VC++ environment. Modify standard VC++
2406 build to use fipscanister.o from the GNU make build.
2409 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2411 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2412 The value now differs depending on if you build for FIPS or not.
2413 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2414 safely run with a non-FIPSed libcrypto, as it may crash because of
2415 the difference induced by this change.
2418 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2420 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2421 (part of SSL_OP_ALL). This option used to disable the
2422 countermeasure against man-in-the-middle protocol-version
2423 rollback in the SSL 2.0 server implementation, which is a bad
2424 idea. (CVE-2005-2969)
2426 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2427 for Information Security, National Institute of Advanced Industrial
2428 Science and Technology [AIST], Japan)]
2430 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2431 mainly for FIPS compliance and not fully integrated at this stage.
2434 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2435 the exponentiation using a fixed-length exponent. (Otherwise,
2436 the information leaked through timing could expose the secret key
2437 after many signatures; cf. Bleichenbacher's attack on DSA with
2441 *) Make a new fixed-window mod_exp implementation the default for
2442 RSA, DSA, and DH private-key operations so that the sequence of
2443 squares and multiplies and the memory access pattern are
2444 independent of the particular secret key. This will mitigate
2445 cache-timing and potential related attacks.
2447 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2448 and this is automatically used by BN_mod_exp_mont() if the new flag
2449 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2450 will use this BN flag for private exponents unless the flag
2451 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2452 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2454 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2456 *) Change the client implementation for SSLv23_method() and
2457 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2458 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2459 (Previously, the SSL 2.0 backwards compatible Client Hello
2460 message format would be used even with SSL_OP_NO_SSLv2.)
2463 *) Add support for smime-type MIME parameter in S/MIME messages which some
2467 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2468 a threadsafe manner. Modify rsa code to use new function and add calls
2469 to dsa and dh code (which had race conditions before).
2472 *) Include the fixed error library code in the C error file definitions
2473 instead of fixing them up at runtime. This keeps the error code
2474 structures constant.
2477 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2479 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2482 *) Fixes for newer kerberos headers. NB: the casts are needed because
2483 the 'length' field is signed on one version and unsigned on another
2484 with no (?) obvious way to tell the difference, without these VC++
2485 complains. Also the "definition" of FAR (blank) is no longer included
2486 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2487 some needed definitions.
2490 *) Undo Cygwin change.
2493 *) Added support for proxy certificates according to RFC 3820.
2494 Because they may be a security thread to unaware applications,
2495 they must be explicitely allowed in run-time. See
2496 docs/HOWTO/proxy_certificates.txt for further information.
2499 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2501 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2502 server and client random values. Previously
2503 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2504 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2506 This change has negligible security impact because:
2508 1. Server and client random values still have 24 bytes of pseudo random
2511 2. Server and client random values are sent in the clear in the initial
2514 3. The master secret is derived using the premaster secret (48 bytes in
2515 size for static RSA ciphersuites) as well as client server and random
2518 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2521 [Stephen Henson, reported by UK NISCC]
2523 *) Use Windows randomness collection on Cygwin.
2526 *) Fix hang in EGD/PRNGD query when communication socket is closed
2527 prematurely by EGD/PRNGD.
2528 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2530 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2533 *) Back-port of selected performance improvements from development
2534 branch, as well as improved support for PowerPC platforms.
2537 *) Add lots of checks for memory allocation failure, error codes to indicate
2538 failure and freeing up memory if a failure occurs.
2539 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2541 *) Add new -passin argument to dgst.
2544 *) Perform some character comparisons of different types in X509_NAME_cmp:
2545 this is needed for some certificates that reencode DNs into UTF8Strings
2546 (in violation of RFC3280) and can't or wont issue name rollover
2550 *) Make an explicit check during certificate validation to see that
2551 the CA setting in each certificate on the chain is correct. As a
2552 side effect always do the following basic checks on extensions,
2553 not just when there's an associated purpose to the check:
2555 - if there is an unhandled critical extension (unless the user
2556 has chosen to ignore this fault)
2557 - if the path length has been exceeded (if one is set at all)
2558 - that certain extensions fit the associated purpose (if one has
2562 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2564 *) Avoid a race condition when CRLs are checked in a multi threaded
2565 environment. This would happen due to the reordering of the revoked
2566 entries during signature checking and serial number lookup. Now the
2567 encoding is cached and the serial number sort performed under a lock.
2568 Add new STACK function sk_is_sorted().
2571 *) Add Delta CRL to the extension code.
2574 *) Various fixes to s3_pkt.c so alerts are sent properly.
2575 [David Holmes <d.holmes@f5.com>]
2577 *) Reduce the chances of duplicate issuer name and serial numbers (in
2578 violation of RFC3280) using the OpenSSL certificate creation utilities.
2579 This is done by creating a random 64 bit value for the initial serial
2580 number when a serial number file is created or when a self signed
2581 certificate is created using 'openssl req -x509'. The initial serial
2582 number file is created using 'openssl x509 -next_serial' in CA.pl
2583 rather than being initialized to 1.
2586 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2588 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2589 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2590 [Joe Orton, Steve Henson]
2592 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2594 [Joe Orton, Steve Henson]
2596 *) Make it possible to have multiple active certificates with the same
2597 subject in the CA index file. This is done only if the keyword
2598 'unique_subject' is set to 'no' in the main CA section (default
2599 if 'CA_default') of the configuration file. The value is saved
2600 with the database itself in a separate index attribute file,
2601 named like the index file with '.attr' appended to the name.
2604 *) X509 verify fixes. Disable broken certificate workarounds when
2605 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2606 keyUsage extension present. Don't accept CRLs with unhandled critical
2607 extensions: since verify currently doesn't process CRL extensions this
2608 rejects a CRL with *any* critical extensions. Add new verify error codes
2612 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2613 A clarification of RFC2560 will require the use of OCTET STRINGs and
2614 some implementations cannot handle the current raw format. Since OpenSSL
2615 copies and compares OCSP nonces as opaque blobs without any attempt at
2616 parsing them this should not create any compatibility issues.
2619 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2620 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2621 this HMAC (and other) operations are several times slower than OpenSSL
2625 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2626 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2628 *) Use the correct content when signing type "other".
2631 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2633 *) Fix various bugs revealed by running the NISCC test suite:
2635 Stop out of bounds reads in the ASN1 code when presented with
2636 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2638 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2640 If verify callback ignores invalid public key errors don't try to check
2641 certificate signature with the NULL public key.
2645 *) New -ignore_err option in ocsp application to stop the server
2646 exiting on the first error in a request.
2649 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2650 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2654 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2655 extra data after the compression methods not only for TLS 1.0
2656 but also for SSL 3.0 (as required by the specification).
2657 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2659 *) Change X509_certificate_type() to mark the key as exported/exportable
2660 when it's 512 *bits* long, not 512 bytes.
2663 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2664 blocks during encryption.
2667 *) Various fixes to base64 BIO and non blocking I/O. On write
2668 flushes were not handled properly if the BIO retried. On read
2669 data was not being buffered properly and had various logic bugs.
2670 This also affects blocking I/O when the data being decoded is a
2674 *) Various S/MIME bugfixes and compatibility changes:
2675 output correct application/pkcs7 MIME type if
2676 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2677 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2678 of files as .eml work). Correctly handle very long lines in MIME
2682 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2684 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2685 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2686 a protocol version number mismatch like a decryption error
2687 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2690 *) Turn on RSA blinding by default in the default implementation
2691 to avoid a timing attack. Applications that don't want it can call
2692 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2693 They would be ill-advised to do so in most cases.
2694 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2696 *) Change RSA blinding code so that it works when the PRNG is not
2697 seeded (in this case, the secret RSA exponent is abused as
2698 an unpredictable seed -- if it is not unpredictable, there
2699 is no point in blinding anyway). Make RSA blinding thread-safe
2700 by remembering the creator's thread ID in rsa->blinding and
2701 having all other threads use local one-time blinding factors
2702 (this requires more computation than sharing rsa->blinding, but
2703 avoids excessive locking; and if an RSA object is not shared
2704 between threads, blinding will still be very fast).
2707 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2708 ENGINE as defaults for all supported algorithms irrespective of
2709 the 'flags' parameter. 'flags' is now honoured, so applications
2710 should make sure they are passing it correctly.
2713 *) Target "mingw" now allows native Windows code to be generated in
2714 the Cygwin environment as well as with the MinGW compiler.
2717 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2719 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2720 via timing by performing a MAC computation even if incorrrect
2721 block cipher padding has been found. This is a countermeasure
2722 against active attacks where the attacker has to distinguish
2723 between bad padding and a MAC verification error. (CVE-2003-0078)
2725 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2726 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2727 Martin Vuagnoux (EPFL, Ilion)]
2729 *) Make the no-err option work as intended. The intention with no-err
2730 is not to have the whole error stack handling routines removed from
2731 libcrypto, it's only intended to remove all the function name and
2732 reason texts, thereby removing some of the footprint that may not
2733 be interesting if those errors aren't displayed anyway.
2735 NOTE: it's still possible for any application or module to have it's
2736 own set of error texts inserted. The routines are there, just not
2737 used by default when no-err is given.
2740 *) Add support for FreeBSD on IA64.
2741 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2743 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2744 Kerberos function mit_des_cbc_cksum(). Before this change,
2745 the value returned by DES_cbc_cksum() was like the one from
2746 mit_des_cbc_cksum(), except the bytes were swapped.
2747 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2749 *) Allow an application to disable the automatic SSL chain building.
2750 Before this a rather primitive chain build was always performed in
2751 ssl3_output_cert_chain(): an application had no way to send the
2752 correct chain if the automatic operation produced an incorrect result.
2754 Now the chain builder is disabled if either:
2756 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2758 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2760 The reasoning behind this is that an application would not want the
2761 auto chain building to take place if extra chain certificates are
2762 present and it might also want a means of sending no additional
2763 certificates (for example the chain has two certificates and the
2767 *) Add the possibility to build without the ENGINE framework.
2768 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2770 *) Under Win32 gmtime() can return NULL: check return value in
2771 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2774 *) DSA routines: under certain error conditions uninitialized BN objects
2775 could be freed. Solution: make sure initialization is performed early
2776 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2777 Nils Larsch <nla@trustcenter.de> via PR#459)
2780 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2781 checked on reconnect on the client side, therefore session resumption
2782 could still fail with a "ssl session id is different" error. This
2783 behaviour is masked when SSL_OP_ALL is used due to
2784 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2785 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2786 followup to PR #377.
2789 *) IA-32 assembler support enhancements: unified ELF targets, support
2790 for SCO/Caldera platforms, fix for Cygwin shared build.
2793 *) Add support for FreeBSD on sparc64. As a consequence, support for
2794 FreeBSD on non-x86 processors is separate from x86 processors on
2795 the config script, much like the NetBSD support.
2796 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2798 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2800 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2803 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2804 code (06) was taken as the first octet of the session ID and the last
2805 octet was ignored consequently. As a result SSLv2 client side session
2806 caching could not have worked due to the session ID mismatch between
2808 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2812 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2813 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2817 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2818 seems that in spite of existing for more than a year, many application
2819 author have done nothing to provide the necessary callbacks, which
2820 means that this particular engine will not work properly anywhere.
2821 This is a very unfortunate situation which forces us, in the name
2822 of usability, to give the hw_ncipher.c a static lock, which is part
2824 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2825 appear in 0.9.8 or later. We EXPECT application authors to have
2826 dealt properly with this when 0.9.8 is released (unless we actually
2827 make such changes in the libcrypto locking code that changes will
2828 have to be made anyway).
2831 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2832 octets have been read, EOF or an error occurs. Without this change
2833 some truncated ASN1 structures will not produce an error.
2836 *) Disable Heimdal support, since it hasn't been fully implemented.
2837 Still give the possibility to force the use of Heimdal, but with
2838 warnings and a request that patches get sent to openssl-dev.
2841 *) Add the VC-CE target, introduce the WINCE sysname, and add
2842 INSTALL.WCE and appropriate conditionals to make it build.
2843 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2845 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2846 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2847 edit numbers of the version.
2848 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2850 *) Introduce safe string copy and catenation functions
2851 (BUF_strlcpy() and BUF_strlcat()).
2852 [Ben Laurie (CHATS) and Richard Levitte]
2854 *) Avoid using fixed-size buffers for one-line DNs.
2855 [Ben Laurie (CHATS)]
2857 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2858 resizing buffers containing secrets, and use where appropriate.
2859 [Ben Laurie (CHATS)]
2861 *) Avoid using fixed size buffers for configuration file location.
2862 [Ben Laurie (CHATS)]
2864 *) Avoid filename truncation for various CA files.
2865 [Ben Laurie (CHATS)]
2867 *) Use sizeof in preference to magic numbers.
2868 [Ben Laurie (CHATS)]
2870 *) Avoid filename truncation in cert requests.
2871 [Ben Laurie (CHATS)]
2873 *) Add assertions to check for (supposedly impossible) buffer
2875 [Ben Laurie (CHATS)]
2877 *) Don't cache truncated DNS entries in the local cache (this could
2878 potentially lead to a spoofing attack).
2879 [Ben Laurie (CHATS)]
2881 *) Fix various buffers to be large enough for hex/decimal
2882 representations in a platform independent manner.
2883 [Ben Laurie (CHATS)]
2885 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2886 resizing buffers containing secrets, and use where appropriate.
2887 [Ben Laurie (CHATS)]
2889 *) Add BIO_indent() to avoid much slightly worrying code to do
2891 [Ben Laurie (CHATS)]
2893 *) Convert sprintf()/BIO_puts() to BIO_printf().
2894 [Ben Laurie (CHATS)]
2896 *) buffer_gets() could terminate with the buffer only half
2898 [Ben Laurie (CHATS)]
2900 *) Add assertions to prevent user-supplied crypto functions from
2901 overflowing internal buffers by having large block sizes, etc.
2902 [Ben Laurie (CHATS)]
2904 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2906 [Ben Laurie (CHATS)]
2908 *) Eliminate unused copy of key in RC4.
2909 [Ben Laurie (CHATS)]
2911 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2912 [Ben Laurie (CHATS)]
2914 *) Fix off-by-one error in EGD path.
2915 [Ben Laurie (CHATS)]
2917 *) If RANDFILE path is too long, ignore instead of truncating.
2918 [Ben Laurie (CHATS)]
2920 *) Eliminate unused and incorrectly sized X.509 structure
2922 [Ben Laurie (CHATS)]
2924 *) Eliminate unused and dangerous function knumber().
2925 [Ben Laurie (CHATS)]
2927 *) Eliminate unused and dangerous structure, KSSL_ERR.
2928 [Ben Laurie (CHATS)]
2930 *) Protect against overlong session ID context length in an encoded
2931 session object. Since these are local, this does not appear to be
2933 [Ben Laurie (CHATS)]
2935 *) Change from security patch (see 0.9.6e below) that did not affect
2936 the 0.9.6 release series:
2938 Remote buffer overflow in SSL3 protocol - an attacker could
2939 supply an oversized master key in Kerberos-enabled versions.
2941 [Ben Laurie (CHATS)]
2943 *) Change the SSL kerb5 codes to match RFC 2712.
2946 *) Make -nameopt work fully for req and add -reqopt switch.
2947 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2949 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2950 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2952 *) Make sure tests can be performed even if the corresponding algorithms
2953 have been removed entirely. This was also the last step to make
2954 OpenSSL compilable with DJGPP under all reasonable conditions.
2955 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2957 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2958 to allow version independent disabling of normally unselected ciphers,
2959 which may be activated as a side-effect of selecting a single cipher.
2961 (E.g., cipher list string "RSA" enables ciphersuites that are left
2962 out of "ALL" because they do not provide symmetric encryption.
2963 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2964 [Lutz Jaenicke, Bodo Moeller]
2966 *) Add appropriate support for separate platform-dependent build
2967 directories. The recommended way to make a platform-dependent
2968 build directory is the following (tested on Linux), maybe with
2971 # Place yourself outside of the OpenSSL source tree. In
2972 # this example, the environment variable OPENSSL_SOURCE
2973 # is assumed to contain the absolute OpenSSL source directory.
2974 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2975 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2976 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2977 mkdir -p `dirname $F`
2978 ln -s $OPENSSL_SOURCE/$F $F
2981 To be absolutely sure not to disturb the source tree, a "make clean"
2982 is a good thing. If it isn't successfull, don't worry about it,
2983 it probably means the source directory is very clean.
2986 *) Make sure any ENGINE control commands make local copies of string
2987 pointers passed to them whenever necessary. Otherwise it is possible
2988 the caller may have overwritten (or deallocated) the original string
2989 data when a later ENGINE operation tries to use the stored values.
2990 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2992 *) Improve diagnostics in file reading and command-line digests.
2993 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2995 *) Add AES modes CFB and OFB to the object database. Correct an
2996 error in AES-CFB decryption.
2999 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3000 allows existing EVP_CIPHER_CTX structures to be reused after
3001 calling EVP_*Final(). This behaviour is used by encryption
3002 BIOs and some applications. This has the side effect that
3003 applications must explicitly clean up cipher contexts with
3004 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3007 *) Check the values of dna and dnb in bn_mul_recursive before calling
3008 bn_mul_comba (a non zero value means the a or b arrays do not contain
3009 n2 elements) and fallback to bn_mul_normal if either is not zero.
3012 *) Fix escaping of non-ASCII characters when using the -subj option
3013 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3016 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3017 form for "surname", serialNumber has no short form.
3018 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3019 therefore remove "mail" short name for "internet 7".
3020 The OID for unique identifiers in X509 certificates is
3021 x500UniqueIdentifier, not uniqueIdentifier.
3022 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3025 *) Add an "init" command to the ENGINE config module and auto initialize
3026 ENGINEs. Without any "init" command the ENGINE will be initialized
3027 after all ctrl commands have been executed on it. If init=1 the
3028 ENGINE is initailized at that point (ctrls before that point are run
3029 on the uninitialized ENGINE and after on the initialized one). If
3030 init=0 then the ENGINE will not be iniatialized at all.
3033 *) Fix the 'app_verify_callback' interface so that the user-defined
3034 argument is actually passed to the callback: In the
3035 SSL_CTX_set_cert_verify_callback() prototype, the callback
3036 declaration has been changed from
3039 int (*cb)(X509_STORE_CTX *,void *);
3040 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3041 i=s->ctx->app_verify_callback(&ctx)
3042 has been changed into
3043 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3045 To update applications using SSL_CTX_set_cert_verify_callback(),
3046 a dummy argument can be added to their callback functions.
3047 [D. K. Smetters <smetters@parc.xerox.com>]
3049 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3050 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3052 *) Add and OPENSSL_LOAD_CONF define which will cause
3053 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3054 This allows older applications to transparently support certain
3055 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3056 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3057 load the config file and OPENSSL_add_all_algorithms_conf() which will
3058 always load it have also been added.
3061 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3062 Adjust NIDs and EVP layer.
3063 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3065 *) Config modules support in openssl utility.
3067 Most commands now load modules from the config file,
3068 though in a few (such as version) this isn't done
3069 because it couldn't be used for anything.
3071 In the case of ca and req the config file used is
3072 the same as the utility itself: that is the -config
3073 command line option can be used to specify an
3077 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3078 use "openssl_conf" if filename is NULL use default openssl config file.
3081 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3082 config section name. Add a new flag to tolerate a missing config file
3083 and move code to CONF_modules_load_file().
3086 *) Support for crypto accelerator cards from Accelerated Encryption
3087 Processing, www.aep.ie. (Use engine 'aep')
3088 The support was copied from 0.9.6c [engine] and adapted/corrected
3089 to work with the new engine framework.
3090 [AEP Inc. and Richard Levitte]
3092 *) Support for SureWare crypto accelerator cards from Baltimore
3093 Technologies. (Use engine 'sureware')
3094 The support was copied from 0.9.6c [engine] and adapted
3095 to work with the new engine framework.
3098 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3099 make the newer ENGINE framework commands for the CHIL engine work.
3100 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3102 *) Make it possible to produce shared libraries on ReliantUNIX.
3103 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3105 *) Add the configuration target debug-linux-ppro.
3106 Make 'openssl rsa' use the general key loading routines
3107 implemented in apps.c, and make those routines able to
3108 handle the key format FORMAT_NETSCAPE and the variant
3110 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3112 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3113 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3115 *) Add -keyform to rsautl, and document -engine.
3116 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3118 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3119 BIO_R_NO_SUCH_FILE error code rather than the generic
3120 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3123 *) Add new functions
3125 ERR_peek_last_error_line
3126 ERR_peek_last_error_line_data.
3127 These are similar to
3130 ERR_peek_error_line_data,
3131 but report on the latest error recorded rather than the first one
3132 still in the error queue.
3133 [Ben Laurie, Bodo Moeller]
3135 *) default_algorithms option in ENGINE config module. This allows things
3137 default_algorithms = ALL
3138 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3141 *) Prelminary ENGINE config module.
3144 *) New experimental application configuration code.
3147 *) Change the AES code to follow the same name structure as all other
3148 symmetric ciphers, and behave the same way. Move everything to
3149 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3150 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3152 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3153 [Ben Laurie and Theo de Raadt]
3155 *) Add option to output public keys in req command.
3156 [Massimiliano Pala madwolf@openca.org]
3158 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3159 (up to about 10% better than before for P-192 and P-224).
3162 *) New functions/macros
3164 SSL_CTX_set_msg_callback(ctx, cb)
3165 SSL_CTX_set_msg_callback_arg(ctx, arg)
3166 SSL_set_msg_callback(ssl, cb)
3167 SSL_set_msg_callback_arg(ssl, arg)
3169 to request calling a callback function
3171 void cb(int write_p, int version, int content_type,
3172 const void *buf, size_t len, SSL *ssl, void *arg)
3174 whenever a protocol message has been completely received
3175 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3176 protocol version according to which the SSL library interprets
3177 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3178 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3179 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3180 specification (change_cipher_spec(20), alert(21), handshake(22)).
3181 'buf' and 'len' point to the actual message, 'ssl' to the
3182 SSL object, and 'arg' is the application-defined value set by
3183 SSL[_CTX]_set_msg_callback_arg().
3185 'openssl s_client' and 'openssl s_server' have new '-msg' options
3186 to enable a callback that displays all protocol messages.
3189 *) Change the shared library support so shared libraries are built as
3190 soon as the corresponding static library is finished, and thereby get
3191 openssl and the test programs linked against the shared library.
3192 This still only happens when the keyword "shard" has been given to
3193 the configuration scripts.
3195 NOTE: shared library support is still an experimental thing, and
3196 backward binary compatibility is still not guaranteed.
3197 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3199 *) Add support for Subject Information Access extension.
3200 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3202 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3203 additional bytes when new memory had to be allocated, not just
3204 when reusing an existing buffer.
3207 *) New command line and configuration option 'utf8' for the req command.
3208 This allows field values to be specified as UTF8 strings.
3211 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3212 runs for the former and machine-readable output for the latter.
3215 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3216 of the e-mail address in the DN (i.e., it will go into a certificate
3217 extension only). The new configuration file option 'email_in_dn = no'
3218 has the same effect.
3219 [Massimiliano Pala madwolf@openca.org]
3221 *) Change all functions with names starting with des_ to be starting
3222 with DES_ instead. Add wrappers that are compatible with libdes,
3223 but are named _ossl_old_des_*. Finally, add macros that map the
3224 des_* symbols to the corresponding _ossl_old_des_* if libdes
3225 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3226 desired, the des_* symbols will be mapped to DES_*, with one
3229 Since we provide two compatibility mappings, the user needs to
3230 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3231 compatibility is desired. The default (i.e., when that macro
3232 isn't defined) is OpenSSL 0.9.6c compatibility.
3234 There are also macros that enable and disable the support of old
3235 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3236 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3237 are defined, the default will apply: to support the old des routines.
3239 In either case, one must include openssl/des.h to get the correct
3240 definitions. Do not try to just include openssl/des_old.h, that
3243 NOTE: This is a major break of an old API into a new one. Software
3244 authors are encouraged to switch to the DES_ style functions. Some
3245 time in the future, des_old.h and the libdes compatibility functions
3246 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3247 default), and then completely removed.
3250 *) Test for certificates which contain unsupported critical extensions.
3251 If such a certificate is found during a verify operation it is
3252 rejected by default: this behaviour can be overridden by either
3253 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3254 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3255 X509_supported_extension() has also been added which returns 1 if a
3256 particular extension is supported.
3259 *) Modify the behaviour of EVP cipher functions in similar way to digests
3260 to retain compatibility with existing code.
3263 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3264 compatibility with existing code. In particular the 'ctx' parameter does
3265 not have to be to be initialized before the call to EVP_DigestInit() and
3266 it is tidied up after a call to EVP_DigestFinal(). New function
3267 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3268 EVP_MD_CTX_copy() changed to not require the destination to be
3269 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3270 requires the destination to be valid.
3272 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3273 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3276 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3277 so that complete 'Handshake' protocol structures are kept in memory
3278 instead of overwriting 'msg_type' and 'length' with 'body' data.
3281 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3282 [Massimo Santin via Richard Levitte]
3284 *) Major restructuring to the underlying ENGINE code. This includes
3285 reduction of linker bloat, separation of pure "ENGINE" manipulation
3286 (initialisation, etc) from functionality dealing with implementations
3287 of specific crypto iterfaces. This change also introduces integrated
3288 support for symmetric ciphers and digest implementations - so ENGINEs
3289 can now accelerate these by providing EVP_CIPHER and EVP_MD
3290 implementations of their own. This is detailed in crypto/engine/README
3291 as it couldn't be adequately described here. However, there are a few
3292 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3293 were changed in the original introduction of ENGINE code have now
3294 reverted back - the hooking from this code to ENGINE is now a good
3295 deal more passive and at run-time, operations deal directly with
3296 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3297 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3298 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3299 they were not being used by the framework as there is no concept of a
3300 BIGNUM_METHOD and they could not be generalised to the new
3301 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3302 ENGINE_cpy() has been removed as it cannot be consistently defined in
3306 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3309 *) Change mkdef.pl to sort symbols that get the same entry number,
3310 and make sure the automatically generated functions ERR_load_*
3311 become part of libeay.num as well.
3314 *) New function SSL_renegotiate_pending(). This returns true once
3315 renegotiation has been requested (either SSL_renegotiate() call
3316 or HelloRequest/ClientHello receveived from the peer) and becomes
3317 false once a handshake has been completed.
3318 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3319 sends a HelloRequest, but does not ensure that a handshake takes
3320 place. SSL_renegotiate_pending() is useful for checking if the
3321 client has followed the request.)
3324 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3325 By default, clients may request session resumption even during
3326 renegotiation (if session ID contexts permit); with this option,
3327 session resumption is possible only in the first handshake.
3329 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3330 more bits available for options that should not be part of
3331 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3334 *) Add some demos for certificate and certificate request creation.
3337 *) Make maximum certificate chain size accepted from the peer application
3338 settable (SSL*_get/set_max_cert_list()), as proposed by
3339 "Douglas E. Engert" <deengert@anl.gov>.
3342 *) Add support for shared libraries for Unixware-7
3343 (Boyd Lynn Gerber <gerberb@zenez.com>).
3346 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3347 be done prior to destruction. Use this to unload error strings from
3348 ENGINEs that load their own error strings. NB: This adds two new API
3349 functions to "get" and "set" this destroy handler in an ENGINE.
3352 *) Alter all existing ENGINE implementations (except "openssl" and
3353 "openbsd") to dynamically instantiate their own error strings. This
3354 makes them more flexible to be built both as statically-linked ENGINEs
3355 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3356 Also, add stub code to each that makes building them as self-contained
3357 shared-libraries easier (see README.ENGINE).
3360 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3361 implementations into applications that are completely implemented in
3362 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3363 commands that can be used to configure what shared-library to load and
3364 to control aspects of the way it is handled. Also, made an update to
3365 the README.ENGINE file that brings its information up-to-date and
3366 provides some information and instructions on the "dynamic" ENGINE
3367 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3370 *) Make it possible to unload ranges of ERR strings with a new
3371 "ERR_unload_strings" function.
3374 *) Add a copy() function to EVP_MD.
3377 *) Make EVP_MD routines take a context pointer instead of just the
3378 md_data void pointer.
3381 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3382 that the digest can only process a single chunk of data
3383 (typically because it is provided by a piece of
3384 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3385 is only going to provide a single chunk of data, and hence the
3386 framework needn't accumulate the data for oneshot drivers.
3389 *) As with "ERR", make it possible to replace the underlying "ex_data"
3390 functions. This change also alters the storage and management of global
3391 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3392 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3393 index counters. The API functions that use this state have been changed
3394 to take a "class_index" rather than pointers to the class's local STACK
3395 and counter, and there is now an API function to dynamically create new
3396 classes. This centralisation allows us to (a) plug a lot of the
3397 thread-safety problems that existed, and (b) makes it possible to clean
3398 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3399 such data would previously have always leaked in application code and
3400 workarounds were in place to make the memory debugging turn a blind eye
3401 to it. Application code that doesn't use this new function will still
3402 leak as before, but their memory debugging output will announce it now
3403 rather than letting it slide.
3405 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3406 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3407 has a return value to indicate success or failure.
3410 *) Make it possible to replace the underlying "ERR" functions such that the
3411 global state (2 LHASH tables and 2 locks) is only used by the "default"
3412 implementation. This change also adds two functions to "get" and "set"
3413 the implementation prior to it being automatically set the first time
3414 any other ERR function takes place. Ie. an application can call "get",
3415 pass the return value to a module it has just loaded, and that module
3416 can call its own "set" function using that value. This means the
3417 module's "ERR" operations will use (and modify) the error state in the
3418 application and not in its own statically linked copy of OpenSSL code.
3421 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3422 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3423 the operation, and provides a more encapsulated way for external code
3424 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3425 to use these functions rather than manually incrementing the counts.
3427 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3430 *) Add EVP test program.
3433 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3436 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3437 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3438 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3439 These allow a CRL to be built without having to access X509_CRL fields
3440 directly. Modify 'ca' application to use new functions.
3443 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3444 bug workarounds. Rollback attack detection is a security feature.
3445 The problem will only arise on OpenSSL servers when TLSv1 is not
3446 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3447 Software authors not wanting to support TLSv1 will have special reasons
3448 for their choice and can explicitly enable this option.
3449 [Bodo Moeller, Lutz Jaenicke]
3451 *) Rationalise EVP so it can be extended: don't include a union of
3452 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3453 (similar to those existing for EVP_CIPHER_CTX).
3458 EVP_MD_CTX_init(&md); /* new function call */
3459 EVP_DigestInit(&md, EVP_sha1());
3460 EVP_DigestUpdate(&md, in, len);
3461 EVP_DigestFinal(&md, out, NULL);
3462 EVP_MD_CTX_cleanup(&md); /* new function call */
3466 *) Make DES key schedule conform to the usual scheme, as well as
3467 correcting its structure. This means that calls to DES functions
3468 now have to pass a pointer to a des_key_schedule instead of a
3469 plain des_key_schedule (which was actually always a pointer
3472 des_key_schedule ks;
3474 des_set_key_checked(..., &ks);
3475 des_ncbc_encrypt(..., &ks, ...);
3477 (Note that a later change renames 'des_...' into 'DES_...'.)
3480 *) Initial reduction of linker bloat: the use of some functions, such as
3481 PEM causes large amounts of unused functions to be linked in due to
3482 poor organisation. For example pem_all.c contains every PEM function
3483 which has a knock on effect of linking in large amounts of (unused)
3484 ASN1 code. Grouping together similar functions and splitting unrelated
3485 functions prevents this.
3488 *) Cleanup of EVP macros.
3491 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3492 correct _ecb suffix.
3495 *) Add initial OCSP responder support to ocsp application. The
3496 revocation information is handled using the text based index
3497 use by the ca application. The responder can either handle
3498 requests generated internally, supplied in files (for example
3499 via a CGI script) or using an internal minimal server.
3502 *) Add configuration choices to get zlib compression for TLS.
3505 *) Changes to Kerberos SSL for RFC 2712 compliance:
3506 1. Implemented real KerberosWrapper, instead of just using
3507 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3508 2. Implemented optional authenticator field of KerberosWrapper.
3510 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3511 and authenticator structs; see crypto/krb5/.
3513 Generalized Kerberos calls to support multiple Kerberos libraries.
3514 [Vern Staats <staatsvr@asc.hpc.mil>,
3515 Jeffrey Altman <jaltman@columbia.edu>
3516 via Richard Levitte]
3518 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3519 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3520 values for each of the key sizes rather than having just
3521 parameters (and 'speed' generating keys each time).
3524 *) Speed up EVP routines.
3527 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3528 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3529 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3530 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3532 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3533 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3534 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3537 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3539 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3542 *) Added the OS2-EMX target.
3543 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3545 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3546 to support NCONF routines in extension code. New function CONF_set_nconf()
3547 to allow functions which take an NCONF to also handle the old LHASH
3548 structure: this means that the old CONF compatible routines can be
3549 retained (in particular wrt extensions) without having to duplicate the
3550 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3553 *) Enhance the general user interface with mechanisms for inner control
3554 and with possibilities to have yes/no kind of prompts.
3557 *) Change all calls to low level digest routines in the library and
3558 applications to use EVP. Add missing calls to HMAC_cleanup() and
3559 don't assume HMAC_CTX can be copied using memcpy().
3560 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3562 *) Add the possibility to control engines through control names but with
3563 arbitrary arguments instead of just a string.
3564 Change the key loaders to take a UI_METHOD instead of a callback
3565 function pointer. NOTE: this breaks binary compatibility with earlier
3566 versions of OpenSSL [engine].
3567 Adapt the nCipher code for these new conditions and add a card insertion
3571 *) Enhance the general user interface with mechanisms to better support
3572 dialog box interfaces, application-defined prompts, the possibility
3573 to use defaults (for example default passwords from somewhere else)
3574 and interrupts/cancellations.
3577 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3578 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3581 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3582 tidy up some unnecessarily weird code in 'sk_new()').
3583 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3585 *) Change the key loading routines for ENGINEs to use the same kind
3586 callback (pem_password_cb) as all other routines that need this
3590 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3591 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3592 than this minimum value is recommended.
3595 *) New random seeder for OpenVMS, using the system process statistics
3596 that are easily reachable.
3599 *) Windows apparently can't transparently handle global
3600 variables defined in DLLs. Initialisations such as:
3602 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3604 wont compile. This is used by the any applications that need to
3605 declare their own ASN1 modules. This was fixed by adding the option
3606 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3607 needed for static libraries under Win32.
3610 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3611 setting of purpose and trust fields. New X509_STORE trust and
3612 purpose functions and tidy up setting in other SSL functions.
3615 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3616 structure. These are inherited by X509_STORE_CTX when it is
3617 initialised. This allows various defaults to be set in the
3618 X509_STORE structure (such as flags for CRL checking and custom
3619 purpose or trust settings) for functions which only use X509_STORE_CTX
3620 internally such as S/MIME.
3622 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3623 trust settings if they are not set in X509_STORE. This allows X509_STORE
3624 purposes and trust (in S/MIME for example) to override any set by default.
3626 Add command line options for CRL checking to smime, s_client and s_server
3630 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3631 are set then the CRL is looked up in the X509_STORE structure and
3632 its validity and signature checked, then if the certificate is found
3633 in the CRL the verify fails with a revoked error.
3635 Various new CRL related callbacks added to X509_STORE_CTX structure.
3637 Command line options added to 'verify' application to support this.
3639 This needs some additional work, such as being able to handle multiple
3640 CRLs with different times, extension based lookup (rather than just
3641 by subject name) and ultimately more complete V2 CRL extension
3645 *) Add a general user interface API (crypto/ui/). This is designed
3646 to replace things like des_read_password and friends (backward
3647 compatibility functions using this new API are provided).
3648 The purpose is to remove prompting functions from the DES code
3649 section as well as provide for prompting through dialog boxes in
3650 a window system and the like.
3653 *) Add "ex_data" support to ENGINE so implementations can add state at a
3654 per-structure level rather than having to store it globally.
3657 *) Make it possible for ENGINE structures to be copied when retrieved by
3658 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3659 This causes the "original" ENGINE structure to act like a template,
3660 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3661 operational state can be localised to each ENGINE structure, despite the
3662 fact they all share the same "methods". New ENGINE structures returned in
3663 this case have no functional references and the return value is the single
3664 structural reference. This matches the single structural reference returned
3665 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3669 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3670 needs to match any other type at all we need to manually clear the
3674 *) Changes to the "openssl engine" utility to include;
3675 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3676 about an ENGINE's available control commands.
3677 - executing control commands from command line arguments using the
3678 '-pre' and '-post' switches. '-post' is only used if '-t' is
3679 specified and the ENGINE is successfully initialised. The syntax for
3680 the individual commands are colon-separated, for example;
3681 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3684 *) New dynamic control command support for ENGINEs. ENGINEs can now
3685 declare their own commands (numbers), names (strings), descriptions,
3686 and input types for run-time discovery by calling applications. A
3687 subset of these commands are implicitly classed as "executable"
3688 depending on their input type, and only these can be invoked through
3689 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3690 can be based on user input, config files, etc). The distinction is
3691 that "executable" commands cannot return anything other than a boolean
3692 result and can only support numeric or string input, whereas some
3693 discoverable commands may only be for direct use through
3694 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3695 pointers, or other custom uses. The "executable" commands are to
3696 support parameterisations of ENGINE behaviour that can be
3697 unambiguously defined by ENGINEs and used consistently across any
3698 OpenSSL-based application. Commands have been added to all the
3699 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3700 control over shared-library paths without source code alterations.
3703 *) Changed all ENGINE implementations to dynamically allocate their
3704 ENGINEs rather than declaring them statically. Apart from this being
3705 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3706 this also allows the implementations to compile without using the
3707 internal engine_int.h header.
3710 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3711 'const' value. Any code that should be able to modify a RAND_METHOD
3712 should already have non-const pointers to it (ie. they should only
3713 modify their own ones).
3716 *) Made a variety of little tweaks to the ENGINE code.
3717 - "atalla" and "ubsec" string definitions were moved from header files
3718 to C code. "nuron" string definitions were placed in variables
3719 rather than hard-coded - allowing parameterisation of these values
3720 later on via ctrl() commands.
3721 - Removed unused "#if 0"'d code.
3722 - Fixed engine list iteration code so it uses ENGINE_free() to release
3723 structural references.
3724 - Constified the RAND_METHOD element of ENGINE structures.
3725 - Constified various get/set functions as appropriate and added
3726 missing functions (including a catch-all ENGINE_cpy that duplicates
3727 all ENGINE values onto a new ENGINE except reference counts/state).
3728 - Removed NULL parameter checks in get/set functions. Setting a method
3729 or function to NULL is a way of cancelling out a previously set
3730 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3731 and doesn't justify the extra error symbols and code.
3732 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3733 flags from engine_int.h to engine.h.
3734 - Changed prototypes for ENGINE handler functions (init(), finish(),
3735 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3738 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3739 to the algorithm using long division. The binary algorithm can be
3740 used only if the modulus is odd. On 32-bit systems, it is faster
3741 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3742 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3743 up to 450 bits. In 64-bit environments, the binary algorithm
3744 appears to be advantageous for much longer moduli; here we use it
3745 for moduli up to 2048 bits.
3748 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3749 could not support the combine flag in choice fields.
3752 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3753 extensions from a certificate request to the certificate.
3756 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3757 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3758 file: this allows the display of the certificate about to be
3759 signed to be customised, to allow certain fields to be included
3760 or excluded and extension details. The old system didn't display
3761 multicharacter strings properly, omitted fields not in the policy
3762 and couldn't display additional details such as extensions.
3765 *) Function EC_POINTs_mul for multiple scalar multiplication
3766 of an arbitrary number of elliptic curve points
3767 \sum scalars[i]*points[i],
3768 optionally including the generator defined for the EC_GROUP:
3769 scalar*generator + \sum scalars[i]*points[i].
3771 EC_POINT_mul is a simple wrapper function for the typical case
3772 that the point list has just one item (besides the optional
3776 *) First EC_METHODs for curves over GF(p):
3778 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3779 operations and provides various method functions that can also
3780 operate with faster implementations of modular arithmetic.
3782 EC_GFp_mont_method() reuses most functions that are part of
3783 EC_GFp_simple_method, but uses Montgomery arithmetic.
3785 [Bodo Moeller; point addition and point doubling
3786 implementation directly derived from source code provided by
3787 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3789 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3790 crypto/ec/ec_lib.c):
3792 Curves are EC_GROUP objects (with an optional group generator)
3793 based on EC_METHODs that are built into the library.
3795 Points are EC_POINT objects based on EC_GROUP objects.
3797 Most of the framework would be able to handle curves over arbitrary
3798 finite fields, but as there are no obvious types for fields other
3799 than GF(p), some functions are limited to that for now.
3802 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3803 that the file contains a complete HTTP response.
3806 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3807 change the def and num file printf format specifier from "%-40sXXX"
3808 to "%-39s XXX". The latter will always guarantee a space after the
3809 field while the former will cause them to run together if the field
3810 is 40 of more characters long.
3813 *) Constify the cipher and digest 'method' functions and structures
3814 and modify related functions to take constant EVP_MD and EVP_CIPHER
3818 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3819 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3822 *) Modify EVP_Digest*() routines so they now return values. Although the
3823 internal software routines can never fail additional hardware versions
3827 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3829 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3830 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3833 ERR_R_NESTED_ASN1_ERROR
3835 ERR_R_MISSING_ASN1_EOS
3836 were 4 .. 9, conflicting with
3837 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3839 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3840 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3842 Add new error code 'ERR_R_INTERNAL_ERROR'.
3845 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3849 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3850 sets the subject name for a new request or supersedes the
3851 subject name in a given request. Formats that can be parsed are
3852 'CN=Some Name, OU=myOU, C=IT'
3854 'CN=Some Name/OU=myOU/C=IT'.
3856 Add options '-batch' and '-verbose' to 'openssl req'.
3857 [Massimiliano Pala <madwolf@hackmasters.net>]
3859 *) Introduce the possibility to access global variables through
3860 functions on platform were that's the best way to handle exporting
3861 global variables in shared libraries. To enable this functionality,
3862 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3863 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3864 is normally done by Configure or something similar).
3866 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3867 in the source file (foo.c) like this:
3869 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3870 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3872 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3873 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3875 OPENSSL_DECLARE_GLOBAL(int,foo);
3876 #define foo OPENSSL_GLOBAL_REF(foo)
3877 OPENSSL_DECLARE_GLOBAL(double,bar);
3878 #define bar OPENSSL_GLOBAL_REF(bar)
3880 The #defines are very important, and therefore so is including the
3881 header file everywhere where the defined globals are used.
3883 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3884 of ASN.1 items, but that structure is a bit different.
3886 The largest change is in util/mkdef.pl which has been enhanced with
3887 better and easier to understand logic to choose which symbols should
3888 go into the Windows .def files as well as a number of fixes and code
3889 cleanup (among others, algorithm keywords are now sorted
3890 lexicographically to avoid constant rewrites).
3893 *) In BN_div() keep a copy of the sign of 'num' before writing the
3894 result to 'rm' because if rm==num the value will be overwritten
3895 and produce the wrong result if 'num' is negative: this caused
3896 problems with BN_mod() and BN_nnmod().
3899 *) Function OCSP_request_verify(). This checks the signature on an
3900 OCSP request and verifies the signer certificate. The signer
3901 certificate is just checked for a generic purpose and OCSP request
3905 *) Add OCSP_check_validity() function to check the validity of OCSP
3906 responses. OCSP responses are prepared in real time and may only
3907 be a few seconds old. Simply checking that the current time lies
3908 between thisUpdate and nextUpdate max reject otherwise valid responses
3909 caused by either OCSP responder or client clock inaccuracy. Instead
3910 we allow thisUpdate and nextUpdate to fall within a certain period of
3911 the current time. The age of the response can also optionally be
3912 checked. Two new options -validity_period and -status_age added to
3916 *) If signature or public key algorithm is unrecognized print out its
3917 OID rather that just UNKNOWN.
3920 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3921 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3922 ID to be generated from the issuer certificate alone which can then be
3923 passed to OCSP_id_issuer_cmp().
3926 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3927 ASN1 modules to export functions returning ASN1_ITEM pointers
3928 instead of the ASN1_ITEM structures themselves. This adds several
3929 new macros which allow the underlying ASN1 function/structure to
3930 be accessed transparently. As a result code should not use ASN1_ITEM
3931 references directly (such as &X509_it) but instead use the relevant
3932 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3933 use of the new ASN1 code on platforms where exporting structures
3934 is problematical (for example in shared libraries) but exporting
3935 functions returning pointers to structures is not.
3938 *) Add support for overriding the generation of SSL/TLS session IDs.
3939 These callbacks can be registered either in an SSL_CTX or per SSL.
3940 The purpose of this is to allow applications to control, if they wish,
3941 the arbitrary values chosen for use as session IDs, particularly as it
3942 can be useful for session caching in multiple-server environments. A
3943 command-line switch for testing this (and any client code that wishes
3944 to use such a feature) has been added to "s_server".
3945 [Geoff Thorpe, Lutz Jaenicke]
3947 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3948 of the form '#if defined(...) || defined(...) || ...' and
3949 '#if !defined(...) && !defined(...) && ...'. This also avoids
3950 the growing number of special cases it was previously handling.
3953 *) Make all configuration macros available for application by making
3954 sure they are available in opensslconf.h, by giving them names starting
3955 with "OPENSSL_" to avoid conflicts with other packages and by making
3956 sure e_os2.h will cover all platform-specific cases together with
3958 Additionally, it is now possible to define configuration/platform-
3959 specific names (called "system identities"). In the C code, these
3960 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3961 macro with the name beginning with "OPENSSL_SYS_", which is determined
3962 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3966 *) New option -set_serial to 'req' and 'x509' this allows the serial
3967 number to use to be specified on the command line. Previously self
3968 signed certificates were hard coded with serial number 0 and the
3969 CA options of 'x509' had to use a serial number in a file which was
3973 *) New options to 'ca' utility to support V2 CRL entry extensions.
3974 Currently CRL reason, invalidity date and hold instruction are
3975 supported. Add new CRL extensions to V3 code and some new objects.
3978 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3979 disable standard block padding (aka PKCS#5 padding) in the EVP
3980 API, which was previously mandatory. This means that the data is
3981 not padded in any way and so the total length much be a multiple
3982 of the block size, otherwise an error occurs.
3985 *) Initial (incomplete) OCSP SSL support.
3988 *) New function OCSP_parse_url(). This splits up a URL into its host,
3989 port and path components: primarily to parse OCSP URLs. New -url
3990 option to ocsp utility.
3993 *) New nonce behavior. The return value of OCSP_check_nonce() now
3994 reflects the various checks performed. Applications can decide
3995 whether to tolerate certain situations such as an absent nonce
3996 in a response when one was present in a request: the ocsp application
3997 just prints out a warning. New function OCSP_add1_basic_nonce()
3998 this is to allow responders to include a nonce in a response even if
3999 the request is nonce-less.
4002 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4003 skipped when using openssl x509 multiple times on a single input file,
4004 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4007 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4008 set string type: to handle setting ASN1_TIME structures. Fix ca
4009 utility to correctly initialize revocation date of CRLs.
4012 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4013 the clients preferred ciphersuites and rather use its own preferences.
4014 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4015 Internet Explorer by ensuring unchanged hash method during stepup.
4016 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4019 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4020 to aes and add a new 'exist' option to print out symbols that don't
4024 *) Additional options to ocsp utility to allow flags to be set and
4025 additional certificates supplied.
4028 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4029 OCSP client a number of certificate to only verify the response
4033 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4034 handle the new API. Currently only ECB, CBC modes supported. Add new
4037 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4038 Encryption Standard (AES) Ciphersuites for Transport Layer
4039 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4040 not enabled by default and were not part of the "ALL" ciphersuite
4041 alias because they were not yet official; they could be
4042 explicitly requested by specifying the "AESdraft" ciphersuite
4043 group alias. In the final release of OpenSSL 0.9.7, the group
4044 alias is called "AES" and is part of "ALL".)
4045 [Ben Laurie, Steve Henson, Bodo Moeller]
4047 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4048 request to response.
4051 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4052 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4053 extract information from a certificate request. OCSP_response_create()
4054 creates a response and optionally adds a basic response structure.
4055 OCSP_basic_add1_status() adds a complete single response to a basic
4056 response and returns the OCSP_SINGLERESP structure just added (to allow
4057 extensions to be included for example). OCSP_basic_add1_cert() adds a
4058 certificate to a basic response and OCSP_basic_sign() signs a basic
4059 response with various flags. New helper functions ASN1_TIME_check()
4060 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4061 (converts ASN1_TIME to GeneralizedTime).
4064 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4065 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4066 structure from a certificate. X509_pubkey_digest() digests the public_key
4067 contents: this is used in various key identifiers.
4070 *) Make sk_sort() tolerate a NULL argument.
4071 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4073 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4074 passed by the function are trusted implicitly. If any of them signed the
4075 response then it is assumed to be valid and is not verified.
4078 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4079 to data. This was previously part of the PKCS7 ASN1 code. This
4080 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4081 [Steve Henson, reported by Kenneth R. Robinette
4082 <support@securenetterm.com>]
4084 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4085 routines: without these tracing memory leaks is very painful.
4086 Fix leaks in PKCS12 and PKCS7 routines.
4089 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4090 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4091 effectively meant GeneralizedTime would never be used. Now it
4092 is initialised to -1 but X509_time_adj() now has to check the value
4093 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4094 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4095 [Steve Henson, reported by Kenneth R. Robinette
4096 <support@securenetterm.com>]
4098 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4099 result in a zero length in the ASN1_INTEGER structure which was
4100 not consistent with the structure when d2i_ASN1_INTEGER() was used
4101 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4102 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4103 where it did not print out a minus for negative ASN1_INTEGER.
4106 *) Add summary printout to ocsp utility. The various functions which
4107 convert status values to strings have been renamed to:
4108 OCSP_response_status_str(), OCSP_cert_status_str() and
4109 OCSP_crl_reason_str() and are no longer static. New options
4110 to verify nonce values and to disable verification. OCSP response
4111 printout format cleaned up.
4114 *) Add additional OCSP certificate checks. These are those specified
4115 in RFC2560. This consists of two separate checks: the CA of the
4116 certificate being checked must either be the OCSP signer certificate
4117 or the issuer of the OCSP signer certificate. In the latter case the
4118 OCSP signer certificate must contain the OCSP signing extended key
4119 usage. This check is performed by attempting to match the OCSP
4120 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4121 in the OCSP_CERTID structures of the response.
4124 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4125 and related routines. This uses the standard OpenSSL certificate
4126 verify routines to perform initial checks (just CA validity) and
4127 to obtain the certificate chain. Then additional checks will be
4128 performed on the chain. Currently the root CA is checked to see
4129 if it is explicitly trusted for OCSP signing. This is used to set
4130 a root CA as a global signing root: that is any certificate that
4131 chains to that CA is an acceptable OCSP signing certificate.
4134 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4135 extensions from a separate configuration file.
4136 As when reading extensions from the main configuration file,
4137 the '-extensions ...' option may be used for specifying the
4139 [Massimiliano Pala <madwolf@comune.modena.it>]
4141 *) New OCSP utility. Allows OCSP requests to be generated or
4142 read. The request can be sent to a responder and the output
4143 parsed, outputed or printed in text form. Not complete yet:
4144 still needs to check the OCSP response validity.
4147 *) New subcommands for 'openssl ca':
4148 'openssl ca -status <serial>' prints the status of the cert with
4149 the given serial number (according to the index file).
4150 'openssl ca -updatedb' updates the expiry status of certificates
4152 [Massimiliano Pala <madwolf@comune.modena.it>]
4154 *) New '-newreq-nodes' command option to CA.pl. This is like
4155 '-newreq', but calls 'openssl req' with the '-nodes' option
4156 so that the resulting key is not encrypted.
4157 [Damien Miller <djm@mindrot.org>]
4159 *) New configuration for the GNU Hurd.
4160 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4162 *) Initial code to implement OCSP basic response verify. This
4163 is currently incomplete. Currently just finds the signer's
4164 certificate and verifies the signature on the response.
4167 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4168 value of OPENSSLDIR. This is available via the new '-d' option
4169 to 'openssl version', and is also included in 'openssl version -a'.
4172 *) Allowing defining memory allocation callbacks that will be given
4173 file name and line number information in additional arguments
4174 (a const char* and an int). The basic functionality remains, as
4175 well as the original possibility to just replace malloc(),
4176 realloc() and free() by functions that do not know about these
4177 additional arguments. To register and find out the current
4178 settings for extended allocation functions, the following
4179 functions are provided:
4181 CRYPTO_set_mem_ex_functions
4182 CRYPTO_set_locked_mem_ex_functions
4183 CRYPTO_get_mem_ex_functions
4184 CRYPTO_get_locked_mem_ex_functions
4186 These work the same way as CRYPTO_set_mem_functions and friends.
4187 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4188 extended allocation function is enabled.
4189 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4190 a conventional allocation function is enabled.
4191 [Richard Levitte, Bodo Moeller]
4193 *) Finish off removing the remaining LHASH function pointer casts.
4194 There should no longer be any prototype-casting required when using
4195 the LHASH abstraction, and any casts that remain are "bugs". See
4196 the callback types and macros at the head of lhash.h for details
4197 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4200 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4201 If /dev/[u]random devices are not available or do not return enough
4202 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4204 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4205 /etc/entropy will be queried once each in this sequence, quering stops
4206 when enough entropy was collected without querying more sockets.
4209 *) Change the Unix RAND_poll() variant to be able to poll several
4210 random devices, as specified by DEVRANDOM, until a sufficient amount
4211 of data has been collected. We spend at most 10 ms on each file
4212 (select timeout) and read in non-blocking mode. DEVRANDOM now
4213 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4214 (previously it was just the string "/dev/urandom"), so on typical
4215 platforms the 10 ms delay will never occur.
4216 Also separate out the Unix variant to its own file, rand_unix.c.
4217 For VMS, there's a currently-empty rand_vms.c.
4220 *) Move OCSP client related routines to ocsp_cl.c. These
4221 provide utility functions which an application needing
4222 to issue a request to an OCSP responder and analyse the
4223 response will typically need: as opposed to those which an
4224 OCSP responder itself would need which will be added later.
4226 OCSP_request_sign() signs an OCSP request with an API similar
4227 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4228 response. OCSP_response_get1_basic() extracts basic response
4229 from response. OCSP_resp_find_status(): finds and extracts status
4230 information from an OCSP_CERTID structure (which will be created
4231 when the request structure is built). These are built from lower
4232 level functions which work on OCSP_SINGLERESP structures but
4233 wont normally be used unless the application wishes to examine
4234 extensions in the OCSP response for example.
4236 Replace nonce routines with a pair of functions.
4237 OCSP_request_add1_nonce() adds a nonce value and optionally
4238 generates a random value. OCSP_check_nonce() checks the
4239 validity of the nonce in an OCSP response.
4242 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4243 This doesn't copy the supplied OCSP_CERTID and avoids the
4244 need to free up the newly created id. Change return type
4245 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4246 This can then be used to add extensions to the request.
4247 Deleted OCSP_request_new(), since most of its functionality
4248 is now in OCSP_REQUEST_new() (and the case insensitive name
4249 clash) apart from the ability to set the request name which
4250 will be added elsewhere.
4253 *) Update OCSP API. Remove obsolete extensions argument from
4254 various functions. Extensions are now handled using the new
4255 OCSP extension code. New simple OCSP HTTP function which
4256 can be used to send requests and parse the response.
4259 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4260 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4261 uses the special reorder version of SET OF to sort the attributes
4262 and reorder them to match the encoded order. This resolves a long
4263 standing problem: a verify on a PKCS7 structure just after signing
4264 it used to fail because the attribute order did not match the
4265 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4266 it uses the received order. This is necessary to tolerate some broken
4267 software that does not order SET OF. This is handled by encoding
4268 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4269 to produce the required SET OF.
4272 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4273 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4274 files to get correct declarations of the ASN.1 item variables.
4277 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4278 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4279 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4280 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4281 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4282 ASN1_ITEM and no wrapper functions.
4285 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4286 replace the old function pointer based I/O routines. Change most of
4287 the *_d2i_bio() and *_d2i_fp() functions to use these.
4290 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4291 lines, recognice more "algorithms" that can be deselected, and make
4292 it complain about algorithm deselection that isn't recognised.
4295 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4296 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4297 to use new functions. Add NO_ASN1_OLD which can be set to remove
4298 some old style ASN1 functions: this can be used to determine if old
4299 code will still work when these eventually go away.
4302 *) New extension functions for OCSP structures, these follow the
4303 same conventions as certificates and CRLs.
4306 *) New function X509V3_add1_i2d(). This automatically encodes and
4307 adds an extension. Its behaviour can be customised with various
4308 flags to append, replace or delete. Various wrappers added for
4309 certifcates and CRLs.
4312 *) Fix to avoid calling the underlying ASN1 print routine when
4313 an extension cannot be parsed. Correct a typo in the
4314 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4317 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4318 entries for variables.
4321 *) Add functionality to apps/openssl.c for detecting locking
4322 problems: As the program is single-threaded, all we have
4323 to do is register a locking callback using an array for
4324 storing which locks are currently held by the program.
4327 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4328 SSL_get_ex_data_X509_STORE_idx(), which is used in
4329 ssl_verify_cert_chain() and thus can be called at any time
4330 during TLS/SSL handshakes so that thread-safety is essential.
4331 Unfortunately, the ex_data design is not at all suited
4332 for multi-threaded use, so it probably should be abolished.
4335 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4336 [Broadcom, tweaked and integrated by Geoff Thorpe]
4338 *) Move common extension printing code to new function
4339 X509V3_print_extensions(). Reorganise OCSP print routines and
4340 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4343 *) New function X509_signature_print() to remove duplication in some
4347 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4348 set (this was treated exactly the same as SET OF previously). This
4349 is used to reorder the STACK representing the structure to match the
4350 encoding. This will be used to get round a problem where a PKCS7
4351 structure which was signed could not be verified because the STACK
4352 order did not reflect the encoded order.
4355 *) Reimplement the OCSP ASN1 module using the new code.
4358 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4359 for its ASN1 operations. The old style function pointers still exist
4360 for now but they will eventually go away.
4363 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4364 completely replaces the old ASN1 functionality with a table driven
4365 encoder and decoder which interprets an ASN1_ITEM structure describing
4366 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4367 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4368 has also been converted to the new form.
4371 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4372 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4373 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4374 for negative moduli.
4377 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4378 of not touching the result's sign bit.
4381 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4385 *) Changed the LHASH code to use prototypes for callbacks, and created
4386 macros to declare and implement thin (optionally static) functions
4387 that provide type-safety and avoid function pointer casting for the
4388 type-specific callbacks.
4391 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4393 [Veers Staats <staatsvr@asc.hpc.mil>,
4394 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4396 *) Reformat the FAQ so the different questions and answers can be divided
4397 in sections depending on the subject.
4400 *) Have the zlib compression code load ZLIB.DLL dynamically under
4404 *) New function BN_mod_sqrt for computing square roots modulo a prime
4405 (using the probabilistic Tonelli-Shanks algorithm unless
4406 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4407 be handled deterministically).
4408 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4410 *) Make BN_mod_inverse faster by explicitly handling small quotients
4411 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4412 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4415 *) New function BN_kronecker.
4418 *) Fix BN_gcd so that it works on negative inputs; the result is
4419 positive unless both parameters are zero.
4420 Previously something reasonably close to an infinite loop was
4421 possible because numbers could be growing instead of shrinking
4422 in the implementation of Euclid's algorithm.
4425 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4426 sign of the number in question.
4428 Fix BN_is_word(a,w) to work correctly for w == 0.
4430 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4431 because its test if the absolute value of 'a' equals 'w'.
4432 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4433 it exists mostly for use in the implementations of BN_is_zero(),
4434 BN_is_one(), and BN_is_word().
4437 *) New function BN_swap.
4440 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4441 the exponentiation functions are more likely to produce reasonable
4442 results on negative inputs.
4445 *) Change BN_mod_mul so that the result is always non-negative.
4446 Previously, it could be negative if one of the factors was negative;
4447 I don't think anyone really wanted that behaviour.
4450 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4451 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4452 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4453 and add new functions:
4462 BN_mod_lshift1_quick
4466 These functions always generate non-negative results.
4468 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4469 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4471 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4472 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4473 be reduced modulo m.
4474 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4477 The following entry accidentily appeared in the CHANGES file
4478 distributed with OpenSSL 0.9.7. The modifications described in
4479 it do *not* apply to OpenSSL 0.9.7.
4481 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4482 was actually never needed) and in BN_mul(). The removal in BN_mul()
4483 required a small change in bn_mul_part_recursive() and the addition
4484 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4485 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4486 bn_sub_words() and bn_add_words() except they take arrays with
4491 *) In 'openssl passwd', verify passwords read from the terminal
4492 unless the '-salt' option is used (which usually means that
4493 verification would just waste user's time since the resulting
4494 hash is going to be compared with some given password hash)
4495 or the new '-noverify' option is used.
4497 This is an incompatible change, but it does not affect
4498 non-interactive use of 'openssl passwd' (passwords on the command
4499 line, '-stdin' option, '-in ...' option) and thus should not
4503 *) Remove all references to RSAref, since there's no more need for it.
4506 *) Make DSO load along a path given through an environment variable
4507 (SHLIB_PATH) with shl_load().
4510 *) Constify the ENGINE code as a result of BIGNUM constification.
4511 Also constify the RSA code and most things related to it. In a
4512 few places, most notable in the depth of the ASN.1 code, ugly
4513 casts back to non-const were required (to be solved at a later
4517 *) Make it so the openssl application has all engines loaded by default.
4520 *) Constify the BIGNUM routines a little more.
4523 *) Add the following functions:
4525 ENGINE_load_cswift()
4527 ENGINE_load_atalla()
4529 ENGINE_load_builtin_engines()
4531 That way, an application can itself choose if external engines that
4532 are built-in in OpenSSL shall ever be used or not. The benefit is
4533 that applications won't have to be linked with libdl or other dso
4534 libraries unless it's really needed.
4536 Changed 'openssl engine' to load all engines on demand.
4537 Changed the engine header files to avoid the duplication of some
4538 declarations (they differed!).
4541 *) 'openssl engine' can now list capabilities.
4544 *) Better error reporting in 'openssl engine'.
4547 *) Never call load_dh_param(NULL) in s_server.
4550 *) Add engine application. It can currently list engines by name and
4551 identity, and test if they are actually available.
4554 *) Improve RPM specification file by forcing symbolic linking and making
4555 sure the installed documentation is also owned by root.root.
4556 [Damien Miller <djm@mindrot.org>]
4558 *) Give the OpenSSL applications more possibilities to make use of
4559 keys (public as well as private) handled by engines.
4562 *) Add OCSP code that comes from CertCo.
4565 *) Add VMS support for the Rijndael code.
4568 *) Added untested support for Nuron crypto accelerator.
4571 *) Add support for external cryptographic devices. This code was
4572 previously distributed separately as the "engine" branch.
4573 [Geoff Thorpe, Richard Levitte]
4575 *) Rework the filename-translation in the DSO code. It is now possible to
4576 have far greater control over how a "name" is turned into a filename
4577 depending on the operating environment and any oddities about the
4578 different shared library filenames on each system.
4581 *) Support threads on FreeBSD-elf in Configure.
4584 *) Fix for SHA1 assembly problem with MASM: it produces
4585 warnings about corrupt line number information when assembling
4586 with debugging information. This is caused by the overlapping
4588 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4591 NCONF_get_number() has no error checking at all. As a replacement,
4592 NCONF_get_number_e() is defined (_e for "error checking") and is
4593 promoted strongly. The old NCONF_get_number is kept around for
4594 binary backward compatibility.
4595 Make it possible for methods to load from something other than a BIO,
4596 by providing a function pointer that is given a name instead of a BIO.
4597 For example, this could be used to load configuration data from an
4601 *) Fix for non blocking accept BIOs. Added new I/O special reason
4602 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4603 with non blocking I/O was not possible because no retry code was
4604 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4608 *) Added the beginnings of Rijndael support.
4611 *) Fix for bug in DirectoryString mask setting. Add support for
4612 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4613 to allow certificate printing to more controllable, additional
4614 'certopt' option to 'x509' to allow new printing options to be
4618 *) Clean old EAY MD5 hack from e_os.h.
4621 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4623 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4624 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4625 [Joe Orton, Steve Henson]
4627 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4629 *) Fix additional bug revealed by the NISCC test suite:
4631 Stop bug triggering large recursion when presented with
4632 certain ASN.1 tags (CVE-2003-0851)
4635 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4637 *) Fix various bugs revealed by running the NISCC test suite:
4639 Stop out of bounds reads in the ASN1 code when presented with
4640 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4642 If verify callback ignores invalid public key errors don't try to check
4643 certificate signature with the NULL public key.
4647 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4648 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4652 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4653 extra data after the compression methods not only for TLS 1.0
4654 but also for SSL 3.0 (as required by the specification).
4655 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4657 *) Change X509_certificate_type() to mark the key as exported/exportable
4658 when it's 512 *bits* long, not 512 bytes.
4661 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4663 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4664 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4665 a protocol version number mismatch like a decryption error
4666 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4669 *) Turn on RSA blinding by default in the default implementation
4670 to avoid a timing attack. Applications that don't want it can call
4671 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4672 They would be ill-advised to do so in most cases.
4673 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4675 *) Change RSA blinding code so that it works when the PRNG is not
4676 seeded (in this case, the secret RSA exponent is abused as
4677 an unpredictable seed -- if it is not unpredictable, there
4678 is no point in blinding anyway). Make RSA blinding thread-safe
4679 by remembering the creator's thread ID in rsa->blinding and
4680 having all other threads use local one-time blinding factors
4681 (this requires more computation than sharing rsa->blinding, but
4682 avoids excessive locking; and if an RSA object is not shared
4683 between threads, blinding will still be very fast).
4686 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4688 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4689 via timing by performing a MAC computation even if incorrrect
4690 block cipher padding has been found. This is a countermeasure
4691 against active attacks where the attacker has to distinguish
4692 between bad padding and a MAC verification error. (CVE-2003-0078)
4694 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4695 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4696 Martin Vuagnoux (EPFL, Ilion)]
4698 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4700 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4701 memory from it's contents. This is done with a counter that will
4702 place alternating values in each byte. This can be used to solve
4703 two issues: 1) the removal of calls to memset() by highly optimizing
4704 compilers, and 2) cleansing with other values than 0, since those can
4705 be read through on certain media, for example a swap space on disk.
4708 *) Bugfix: client side session caching did not work with external caching,
4709 because the session->cipher setting was not restored when reloading
4710 from the external cache. This problem was masked, when
4711 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4712 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4715 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4716 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4717 [Zeev Lieber <zeev-l@yahoo.com>]
4719 *) Undo an undocumented change introduced in 0.9.6e which caused
4720 repeated calls to OpenSSL_add_all_ciphers() and
4721 OpenSSL_add_all_digests() to be ignored, even after calling
4725 *) Change the default configuration reader to deal with last line not
4726 being properly terminated.
4729 *) Change X509_NAME_cmp() so it applies the special rules on handling
4730 DN values that are of type PrintableString, as well as RDNs of type
4731 emailAddress where the value has the type ia5String.
4732 [stefank@valicert.com via Richard Levitte]
4734 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4735 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4736 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4737 the bitwise-OR of the two for use by the majority of applications
4738 wanting this behaviour, and update the docs. The documented
4739 behaviour and actual behaviour were inconsistent and had been
4740 changing anyway, so this is more a bug-fix than a behavioural
4742 [Geoff Thorpe, diagnosed by Nadav Har'El]
4744 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4745 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4748 *) Fix initialization code race conditions in
4749 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4750 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4751 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4752 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4753 ssl2_get_cipher_by_char(),
4754 ssl3_get_cipher_by_char().
4755 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4757 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4758 the cached sessions are flushed, as the remove_cb() might use ex_data
4759 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4760 (see [openssl.org #212]).
4761 [Geoff Thorpe, Lutz Jaenicke]
4763 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4764 length, instead of the encoding length to d2i_ASN1_OBJECT.
4767 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4769 *) [In 0.9.6g-engine release:]
4770 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4771 [Lynn Gazis <lgazis@rainbow.com>]
4773 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4775 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4776 and get fix the header length calculation.
4777 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4778 Alon Kantor <alonk@checkpoint.com> (and others),
4781 *) Use proper error handling instead of 'assertions' in buffer
4782 overflow checks added in 0.9.6e. This prevents DoS (the
4783 assertions could call abort()).
4784 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4786 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4788 *) Add various sanity checks to asn1_get_length() to reject
4789 the ASN1 length bytes if they exceed sizeof(long), will appear
4790 negative or the content length exceeds the length of the
4792 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4794 *) Fix cipher selection routines: ciphers without encryption had no flags
4795 for the cipher strength set and where therefore not handled correctly
4796 by the selection routines (PR #130).
4799 *) Fix EVP_dsa_sha macro.
4803 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4804 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4805 that was added in OpenSSL 0.9.6d.
4807 As the countermeasure turned out to be incompatible with some
4808 broken SSL implementations, the new option is part of SSL_OP_ALL.
4809 SSL_OP_ALL is usually employed when compatibility with weird SSL
4810 implementations is desired (e.g. '-bugs' option to 's_client' and
4811 's_server'), so the new option is automatically set in many
4815 *) Changes in security patch:
4817 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4818 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4819 Air Force Materiel Command, USAF, under agreement number
4822 *) Add various sanity checks to asn1_get_length() to reject
4823 the ASN1 length bytes if they exceed sizeof(long), will appear
4824 negative or the content length exceeds the length of the
4825 supplied buffer. (CVE-2002-0659)
4826 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4828 *) Assertions for various potential buffer overflows, not known to
4830 [Ben Laurie (CHATS)]
4832 *) Various temporary buffers to hold ASCII versions of integers were
4833 too small for 64 bit platforms. (CVE-2002-0655)
4834 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4836 *) Remote buffer overflow in SSL3 protocol - an attacker could
4837 supply an oversized session ID to a client. (CVE-2002-0656)
4838 [Ben Laurie (CHATS)]
4840 *) Remote buffer overflow in SSL2 protocol - an attacker could
4841 supply an oversized client master key. (CVE-2002-0656)
4842 [Ben Laurie (CHATS)]
4844 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4846 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4847 encoded as NULL) with id-dsa-with-sha1.
4848 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4850 *) Check various X509_...() return values in apps/req.c.
4851 [Nils Larsch <nla@trustcenter.de>]
4853 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4854 an end-of-file condition would erronously be flagged, when the CRLF
4855 was just at the end of a processed block. The bug was discovered when
4856 processing data through a buffering memory BIO handing the data to a
4857 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4858 <ptsekov@syntrex.com> and Nedelcho Stanev.
4861 *) Implement a countermeasure against a vulnerability recently found
4862 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4863 before application data chunks to avoid the use of known IVs
4864 with data potentially chosen by the attacker.
4867 *) Fix length checks in ssl3_get_client_hello().
4870 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4871 to prevent ssl3_read_internal() from incorrectly assuming that
4872 ssl3_read_bytes() found application data while handshake
4873 processing was enabled when in fact s->s3->in_read_app_data was
4874 merely automatically cleared during the initial handshake.
4875 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4877 *) Fix object definitions for Private and Enterprise: they were not
4878 recognized in their shortname (=lowercase) representation. Extend
4879 obj_dat.pl to issue an error when using undefined keywords instead
4880 of silently ignoring the problem (Svenning Sorensen
4881 <sss@sss.dnsalias.net>).
4884 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4885 generators, i.e. generators other than 2 and 5. (Previously, the
4886 code did not properly initialise the 'add' and 'rem' values to
4887 BN_generate_prime().)
4889 In the new general case, we do not insist that 'generator' is
4890 actually a primitive root: This requirement is rather pointless;
4891 a generator of the order-q subgroup is just as good, if not
4895 *) Map new X509 verification errors to alerts. Discovered and submitted by
4896 Tom Wu <tom@arcot.com>.
4899 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4900 returning non-zero before the data has been completely received
4901 when using non-blocking I/O.
4902 [Bodo Moeller; problem pointed out by John Hughes]
4904 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4905 [Ben Laurie, Lutz Jaenicke]
4907 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4908 Yoram Zahavi <YoramZ@gilian.com>).
4911 *) Add information about CygWin 1.3 and on, and preserve proper
4912 configuration for the versions before that.
4913 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4915 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4916 check whether we deal with a copy of a session and do not delete from
4917 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4918 <izhar@checkpoint.com>.
4921 *) Do not store session data into the internal session cache, if it
4922 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4923 flag is set). Proposed by Aslam <aslam@funk.com>.
4926 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4930 *) [In 0.9.6d-engine release:]
4931 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4932 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4934 *) Add the configuration target linux-s390x.
4935 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4937 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4938 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4939 variable as an indication that a ClientHello message has been
4940 received. As the flag value will be lost between multiple
4941 invocations of ssl3_accept when using non-blocking I/O, the
4942 function may not be aware that a handshake has actually taken
4943 place, thus preventing a new session from being added to the
4946 To avoid this problem, we now set s->new_session to 2 instead of
4947 using a local variable.
4948 [Lutz Jaenicke, Bodo Moeller]
4950 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4951 if the SSL_R_LENGTH_MISMATCH error is detected.
4952 [Geoff Thorpe, Bodo Moeller]
4954 *) New 'shared_ldflag' column in Configure platform table.
4957 *) Fix EVP_CIPHER_mode macro.
4958 ["Dan S. Camper" <dan@bti.net>]
4960 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4961 type, we must throw them away by setting rr->length to 0.
4962 [D P Chang <dpc@qualys.com>]
4964 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4966 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4967 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4968 worked incorrectly for those cases where range = 10..._2 and
4969 3*range is two bits longer than range.)
4972 *) Only add signing time to PKCS7 structures if it is not already
4976 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4977 OBJ_ld_ce should be OBJ_id_ce.
4978 Also some ip-pda OIDs in crypto/objects/objects.txt were
4979 incorrect (cf. RFC 3039).
4980 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4982 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4983 returns early because it has nothing to do.
4984 [Andy Schneider <andy.schneider@bjss.co.uk>]
4986 *) [In 0.9.6c-engine release:]
4987 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4988 [Andy Schneider <andy.schneider@bjss.co.uk>]
4990 *) [In 0.9.6c-engine release:]
4991 Add support for Cryptographic Appliance's keyserver technology.
4992 (Use engine 'keyclient')
4993 [Cryptographic Appliances and Geoff Thorpe]
4995 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4996 is called via tools/c89.sh because arguments have to be
4997 rearranged (all '-L' options must appear before the first object
4999 [Richard Shapiro <rshapiro@abinitio.com>]
5001 *) [In 0.9.6c-engine release:]
5002 Add support for Broadcom crypto accelerator cards, backported
5004 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5006 *) [In 0.9.6c-engine release:]
5007 Add support for SureWare crypto accelerator cards from
5008 Baltimore Technologies. (Use engine 'sureware')
5009 [Baltimore Technologies and Mark Cox]
5011 *) [In 0.9.6c-engine release:]
5012 Add support for crypto accelerator cards from Accelerated
5013 Encryption Processing, www.aep.ie. (Use engine 'aep')
5014 [AEP Inc. and Mark Cox]
5016 *) Add a configuration entry for gcc on UnixWare.
5017 [Gary Benson <gbenson@redhat.com>]
5019 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5020 messages are stored in a single piece (fixed-length part and
5021 variable-length part combined) and fix various bugs found on the way.
5024 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5025 instead. BIO_gethostbyname() does not know what timeouts are
5026 appropriate, so entries would stay in cache even when they have
5028 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5030 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5031 faced with a pathologically small ClientHello fragment that does
5032 not contain client_version: Instead of aborting with an error,
5033 simply choose the highest available protocol version (i.e.,
5034 TLS 1.0 unless it is disabled). In practice, ClientHello
5035 messages are never sent like this, but this change gives us
5036 strictly correct behaviour at least for TLS.
5039 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5040 never resets s->method to s->ctx->method when called from within
5041 one of the SSL handshake functions.
5042 [Bodo Moeller; problem pointed out by Niko Baric]
5044 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5045 (sent using the client's version number) if client_version is
5046 smaller than the protocol version in use. Also change
5047 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5048 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5049 the client will at least see that alert.
5052 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5056 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5057 client receives HelloRequest while in a handshake.
5058 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5060 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5061 should end in 'break', not 'goto end' which circuments various
5062 cleanups done in state SSL_ST_OK. But session related stuff
5063 must be disabled for SSL_ST_OK in the case that we just sent a
5066 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5067 before just sending a HelloRequest.
5068 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5070 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5071 reveal whether illegal block cipher padding was found or a MAC
5072 verification error occured. (Neither SSLerr() codes nor alerts
5073 are directly visible to potential attackers, but the information
5074 may leak via logfiles.)
5076 Similar changes are not required for the SSL 2.0 implementation
5077 because the number of padding bytes is sent in clear for SSL 2.0,
5078 and the extra bytes are just ignored. However ssl/s2_pkt.c
5079 failed to verify that the purported number of padding bytes is in
5083 *) Add OpenUNIX-8 support including shared libraries
5084 (Boyd Lynn Gerber <gerberb@zenez.com>).
5087 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5088 'wristwatch attack' using huge encoding parameters (cf.
5089 James H. Manger's CRYPTO 2001 paper). Note that the
5090 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5091 encoding parameters and hence was not vulnerable.
5094 *) BN_sqr() bug fix.
5095 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5097 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5098 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5099 followed by modular reduction.
5100 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5102 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5103 equivalent based on BN_pseudo_rand() instead of BN_rand().
5106 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5107 This function was broken, as the check for a new client hello message
5108 to handle SGC did not allow these large messages.
5109 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5112 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5115 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5116 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5119 *) Rework the configuration and shared library support for Tru64 Unix.
5120 The configuration part makes use of modern compiler features and
5121 still retains old compiler behavior for those that run older versions
5122 of the OS. The shared library support part includes a variant that
5123 uses the RPATH feature, and is available through the special
5124 configuration target "alpha-cc-rpath", which will never be selected
5126 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5128 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5129 with the same message size as in ssl3_get_certificate_request().
5130 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5131 messages might inadvertently be reject as too long.
5132 [Petr Lampa <lampa@fee.vutbr.cz>]
5134 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5137 *) Modified SSL library such that the verify_callback that has been set
5138 specificly for an SSL object with SSL_set_verify() is actually being
5139 used. Before the change, a verify_callback set with this function was
5140 ignored and the verify_callback() set in the SSL_CTX at the time of
5141 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5142 to allow the necessary settings.
5145 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5146 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5147 done automatically (in contradiction to the requirements of the C
5148 standard). This made problems when used from OpenSSH.
5151 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5152 dh->length and always used
5154 BN_rand_range(priv_key, dh->p).
5156 BN_rand_range() is not necessary for Diffie-Hellman, and this
5157 specific range makes Diffie-Hellman unnecessarily inefficient if
5158 dh->length (recommended exponent length) is much smaller than the
5159 length of dh->p. We could use BN_rand_range() if the order of
5160 the subgroup was stored in the DH structure, but we only have
5165 BN_rand(priv_key, l, ...)
5167 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5173 RSA_eay_public_encrypt
5174 RSA_eay_private_decrypt
5175 RSA_eay_private_encrypt (signing)
5176 RSA_eay_public_decrypt (signature verification)
5178 (default implementations for RSA_public_encrypt,
5179 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5180 always reject numbers >= n.
5183 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5184 to synchronize access to 'locking_thread'. This is necessary on
5185 systems where access to 'locking_thread' (an 'unsigned long'
5186 variable) is not atomic.
5189 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5190 *before* setting the 'crypto_lock_rand' flag. The previous code had
5191 a race condition if 0 is a valid thread ID.
5192 [Travis Vitek <vitek@roguewave.com>]
5194 *) Add support for shared libraries under Irix.
5195 [Albert Chin-A-Young <china@thewrittenword.com>]
5197 *) Add configuration option to build on Linux on both big-endian and
5199 [Ralf Baechle <ralf@uni-koblenz.de>]
5201 *) Add the possibility to create shared libraries on HP-UX.
5204 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5206 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5207 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5208 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5209 PRNG state recovery was possible based on the output of
5210 one PRNG request appropriately sized to gain knowledge on
5211 'md' followed by enough consecutive 1-byte PRNG requests
5212 to traverse all of 'state'.
5214 1. When updating 'md_local' (the current thread's copy of 'md')
5215 during PRNG output generation, hash all of the previous
5216 'md_local' value, not just the half used for PRNG output.
5218 2. Make the number of bytes from 'state' included into the hash
5219 independent from the number of PRNG bytes requested.
5221 The first measure alone would be sufficient to avoid
5222 Markku-Juhani's attack. (Actually it had never occurred
5223 to me that the half of 'md_local' used for chaining was the
5224 half from which PRNG output bytes were taken -- I had always
5225 assumed that the secret half would be used.) The second
5226 measure makes sure that additional data from 'state' is never
5227 mixed into 'md_local' in small portions; this heuristically
5228 further strengthens the PRNG.
5231 *) Fix crypto/bn/asm/mips3.s.
5234 *) When only the key is given to "enc", the IV is undefined. Print out
5235 an error message in this case.
5238 *) Handle special case when X509_NAME is empty in X509 printing routines.
5241 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5242 positive and less than q.
5245 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5246 used: it isn't thread safe and the add_lock_callback should handle
5248 [Paul Rose <Paul.Rose@bridge.com>]
5250 *) Verify that incoming data obeys the block size in
5251 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5255 [Ulf Möller, Bodo Möller]
5257 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5258 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5259 when fixing the server behaviour for backwards-compatible 'client
5260 hello' messages. (Note that the attack is impractical against
5261 SSL 3.0 and TLS 1.0 anyway because length and version checking
5262 means that the probability of guessing a valid ciphertext is
5263 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5266 Before 0.9.5, the countermeasure (hide the error by generating a
5267 random 'decryption result') did not work properly because
5268 ERR_clear_error() was missing, meaning that SSL_get_error() would
5269 detect the supposedly ignored error.
5271 Both problems are now fixed.
5274 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5275 (previously it was 1024).
5278 *) Fix for compatibility mode trust settings: ignore trust settings
5279 unless some valid trust or reject settings are present.
5282 *) Fix for blowfish EVP: its a variable length cipher.
5285 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5286 parameters in DSA public key structures and return an error in the
5287 DSA routines if parameters are absent.
5290 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5291 in the current directory if neither $RANDFILE nor $HOME was set.
5292 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5293 caused some confusion to Windows users who haven't defined $HOME.
5294 Thus RAND_file_name() is changed again: e_os.h can define a
5295 DEFAULT_HOME, which will be used if $HOME is not set.
5296 For Windows, we use "C:"; on other platforms, we still require
5297 environment variables.
5299 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5300 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5301 having multiple threads call RAND_poll() concurrently.
5304 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5305 combination of a flag and a thread ID variable.
5306 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5307 flag), *other* threads can enter ssleay_add_bytes without obeying
5308 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5309 that they do not hold after the first thread unsets add_do_not_lock).
5312 *) Change bctest again: '-x' expressions are not available in all
5316 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5318 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5319 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5321 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5322 the default extension for executables, if any. Also, make the perl
5323 scripts that use symlink() to test if it really exists and use "cp"
5324 if it doesn't. All this made OpenSSL compilable and installable in
5328 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5329 If SEQUENCE is length is indefinite just set c->slen to the total
5330 amount of data available.
5331 [Steve Henson, reported by shige@FreeBSD.org]
5332 [This change does not apply to 0.9.7.]
5334 *) Change bctest to avoid here-documents inside command substitution
5335 (workaround for FreeBSD /bin/sh bug).
5336 For compatibility with Ultrix, avoid shell functions (introduced
5337 in the bctest version that searches along $PATH).
5340 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5341 with des_encrypt() defined on some operating systems, like Solaris
5345 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5346 On the Importance of Eliminating Errors in Cryptographic
5347 Computations, J. Cryptology 14 (2001) 2, 101-119,
5348 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5351 *) MIPS assembler BIGNUM division bug fix.
5354 *) Disabled incorrect Alpha assembler code.
5357 *) Fix PKCS#7 decode routines so they correctly update the length
5358 after reading an EOC for the EXPLICIT tag.
5360 [This change does not apply to 0.9.7.]
5362 *) Fix bug in PKCS#12 key generation routines. This was triggered
5363 if a 3DES key was generated with a 0 initial byte. Include
5364 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5365 (but broken) behaviour.
5368 *) Enhance bctest to search for a working bc along $PATH and print
5370 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5372 *) Fix memory leaks in err.c: free err_data string if necessary;
5373 don't write to the wrong index in ERR_set_error_data.
5376 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5380 *) Replace rdtsc with _emit statements for VC++ version 5.
5381 [Jeremy Cooper <jeremy@baymoo.org>]
5383 *) Make it possible to reuse SSLv2 sessions.
5386 *) In copy_email() check for >= 0 as a return value for
5387 X509_NAME_get_index_by_NID() since 0 is a valid index.
5388 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5390 *) Avoid coredump with unsupported or invalid public keys by checking if
5391 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5392 PKCS7_verify() fails with non detached data.
5395 *) Don't use getenv in library functions when run as setuid/setgid.
5396 New function OPENSSL_issetugid().
5399 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5400 due to incorrect handling of multi-threading:
5402 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5404 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5406 3. Count how many times MemCheck_off() has been called so that
5407 nested use can be treated correctly. This also avoids
5408 inband-signalling in the previous code (which relied on the
5409 assumption that thread ID 0 is impossible).
5412 *) Add "-rand" option also to s_client and s_server.
5415 *) Fix CPU detection on Irix 6.x.
5416 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5417 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5419 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5422 [This change does not apply to 0.9.7.]
5424 *) Use the cached encoding of an X509_NAME structure rather than
5425 copying it. This is apparently the reason for the libsafe "errors"
5426 but the code is actually correct.
5429 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5430 Bleichenbacher's DSA attack.
5431 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5432 to be set and top=0 forces the highest bit to be set; top=-1 is new
5433 and leaves the highest bit random.
5434 [Ulf Moeller, Bodo Moeller]
5436 *) In the NCONF_...-based implementations for CONF_... queries
5437 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5438 a temporary CONF structure with the data component set to NULL
5439 (which gives segmentation faults in lh_retrieve).
5440 Instead, use NULL for the CONF pointer in CONF_get_string and
5441 CONF_get_number (which may use environment variables) and directly
5442 return NULL from CONF_get_section.
5445 *) Fix potential buffer overrun for EBCDIC.
5448 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5449 keyUsage if basicConstraints absent for a CA.
5452 *) Make SMIME_write_PKCS7() write mail header values with a format that
5453 is more generally accepted (no spaces before the semicolon), since
5454 some programs can't parse those values properly otherwise. Also make
5455 sure BIO's that break lines after each write do not create invalid
5459 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5460 macros previously used would not encode an empty SEQUENCE OF
5461 and break the signature.
5463 [This change does not apply to 0.9.7.]
5465 *) Zero the premaster secret after deriving the master secret in
5469 *) Add some EVP_add_digest_alias registrations (as found in
5470 OpenSSL_add_all_digests()) to SSL_library_init()
5471 aka OpenSSL_add_ssl_algorithms(). This provides improved
5472 compatibility with peers using X.509 certificates
5473 with unconventional AlgorithmIdentifier OIDs.
5476 *) Fix for Irix with NO_ASM.
5477 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5479 *) ./config script fixes.
5480 [Ulf Moeller, Richard Levitte]
5482 *) Fix 'openssl passwd -1'.
5485 *) Change PKCS12_key_gen_asc() so it can cope with non null
5486 terminated strings whose length is passed in the passlen
5487 parameter, for example from PEM callbacks. This was done
5488 by adding an extra length parameter to asc2uni().
5489 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5491 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5492 call failed, free the DSA structure.
5495 *) Fix to uni2asc() to cope with zero length Unicode strings.
5496 These are present in some PKCS#12 files.
5499 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5500 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5501 when writing a 32767 byte record.
5502 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5504 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5505 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5507 (RSA objects have a reference count access to which is protected
5508 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5509 so they are meant to be shared between threads.)
5510 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5511 "Reddie, Steven" <Steven.Reddie@ca.com>]
5513 *) Fix a deadlock in CRYPTO_mem_leaks().
5516 *) Use better test patterns in bntest.
5519 *) rand_win.c fix for Borland C.
5522 *) BN_rshift bugfix for n == 0.
5525 *) Add a 'bctest' script that checks for some known 'bc' bugs
5526 so that 'make test' does not abort just because 'bc' is broken.
5529 *) Store verify_result within SSL_SESSION also for client side to
5530 avoid potential security hole. (Re-used sessions on the client side
5531 always resulted in verify_result==X509_V_OK, not using the original
5532 result of the server certificate verification.)
5535 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5536 SSL3_RT_APPLICATION_DATA, return 0.
5537 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5541 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5542 releases, have been re-implemented by renaming the previous
5543 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5544 and ssl3_read_internal, respectively, and adding 'peek' parameters
5545 to them. The new ssl[23]_{read,peek} functions are calls to
5546 ssl[23]_read_internal with the 'peek' flag set appropriately.
5547 A 'peek' parameter has also been added to ssl3_read_bytes, which
5548 does the actual work for ssl3_read_internal.
5551 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5552 the method-specific "init()" handler. Also clean up ex_data after
5553 calling the method-specific "finish()" handler. Previously, this was
5554 happening the other way round.
5557 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5558 The previous value, 12, was not always sufficient for BN_mod_exp().
5561 *) Make sure that shared libraries get the internal name engine with
5562 the full version number and not just 0. This should mark the
5563 shared libraries as not backward compatible. Of course, this should
5564 be changed again when we can guarantee backward binary compatibility.
5567 *) Fix typo in get_cert_by_subject() in by_dir.c
5568 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5570 *) Rework the system to generate shared libraries:
5572 - Make note of the expected extension for the shared libraries and
5573 if there is a need for symbolic links from for example libcrypto.so.0
5574 to libcrypto.so.0.9.7. There is extended info in Configure for
5577 - Make as few rebuilds of the shared libraries as possible.
5579 - Still avoid linking the OpenSSL programs with the shared libraries.
5581 - When installing, install the shared libraries separately from the
5585 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5587 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5588 and not in SSL_clear because the latter is also used by the
5589 accept/connect functions; previously, the settings made by
5590 SSL_set_read_ahead would be lost during the handshake.
5591 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5593 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5594 Previously, it would create entries for disableed algorithms no
5598 *) Added several new manual pages for SSL_* function.
5601 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5603 *) In ssl23_get_client_hello, generate an error message when faced
5604 with an initial SSL 3.0/TLS record that is too small to contain the
5605 first two bytes of the ClientHello message, i.e. client_version.
5606 (Note that this is a pathologic case that probably has never happened
5607 in real life.) The previous approach was to use the version number
5608 from the record header as a substitute; but our protocol choice
5609 should not depend on that one because it is not authenticated
5610 by the Finished messages.
5613 *) More robust randomness gathering functions for Windows.
5614 [Jeffrey Altman <jaltman@columbia.edu>]
5616 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5617 not set then we don't setup the error code for issuer check errors
5618 to avoid possibly overwriting other errors which the callback does
5619 handle. If an application does set the flag then we assume it knows
5620 what it is doing and can handle the new informational codes
5624 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5625 a general "ANY" type, as such it should be able to decode anything
5626 including tagged types. However it didn't check the class so it would
5627 wrongly interpret tagged types in the same way as their universal
5628 counterpart and unknown types were just rejected. Changed so that the
5629 tagged and unknown types are handled in the same way as a SEQUENCE:
5630 that is the encoding is stored intact. There is also a new type
5631 "V_ASN1_OTHER" which is used when the class is not universal, in this
5632 case we have no idea what the actual type is so we just lump them all
5636 *) On VMS, stdout may very well lead to a file that is written to
5637 in a record-oriented fashion. That means that every write() will
5638 write a separate record, which will be read separately by the
5639 programs trying to read from it. This can be very confusing.
5641 The solution is to put a BIO filter in the way that will buffer
5642 text until a linefeed is reached, and then write everything a
5643 line at a time, so every record written will be an actual line,
5644 not chunks of lines and not (usually doesn't happen, but I've
5645 seen it once) several lines in one record. BIO_f_linebuffer() is
5648 Currently, it's a VMS-only method, because that's where it has
5649 been tested well enough.
5652 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5653 it can return incorrect results.
5654 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5655 but it was in 0.9.6-beta[12].)
5658 *) Disable the check for content being present when verifying detached
5659 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5660 include zero length content when signing messages.
5663 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5664 BIO_ctrl (for BIO pairs).
5667 *) Add DSO method for VMS.
5670 *) Bug fix: Montgomery multiplication could produce results with the
5674 *) Add RPM specification openssl.spec and modify it to build three
5675 packages. The default package contains applications, application
5676 documentation and run-time libraries. The devel package contains
5677 include files, static libraries and function documentation. The
5678 doc package contains the contents of the doc directory. The original
5679 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5682 *) Add a large number of documentation files for many SSL routines.
5683 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5685 *) Add a configuration entry for Sony News 4.
5686 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5688 *) Don't set the two most significant bits to one when generating a
5689 random number < q in the DSA library.
5692 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5693 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5694 the underlying transport is blocking) if a handshake took place.
5695 (The default behaviour is needed by applications such as s_client
5696 and s_server that use select() to determine when to use SSL_read;
5697 but for applications that know in advance when to expect data, it
5698 just makes things more complicated.)
5701 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5705 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5706 work better on such systems.
5707 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5709 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5710 Update PKCS12_parse() so it copies the friendlyName and the
5711 keyid to the certificates aux info.
5714 *) Fix bug in PKCS7_verify() which caused an infinite loop
5715 if there was more than one signature.
5716 [Sven Uszpelkat <su@celocom.de>]
5718 *) Major change in util/mkdef.pl to include extra information
5719 about each symbol, as well as presentig variables as well
5720 as functions. This change means that there's n more need
5721 to rebuild the .num files when some algorithms are excluded.
5724 *) Allow the verify time to be set by an application,
5725 rather than always using the current time.
5728 *) Phase 2 verify code reorganisation. The certificate
5729 verify code now looks up an issuer certificate by a
5730 number of criteria: subject name, authority key id
5731 and key usage. It also verifies self signed certificates
5732 by the same criteria. The main comparison function is
5733 X509_check_issued() which performs these checks.
5735 Lot of changes were necessary in order to support this
5736 without completely rewriting the lookup code.
5738 Authority and subject key identifier are now cached.
5740 The LHASH 'certs' is X509_STORE has now been replaced
5741 by a STACK_OF(X509_OBJECT). This is mainly because an
5742 LHASH can't store or retrieve multiple objects with
5743 the same hash value.
5745 As a result various functions (which were all internal
5746 use only) have changed to handle the new X509_STORE
5747 structure. This will break anything that messed round
5748 with X509_STORE internally.
5750 The functions X509_STORE_add_cert() now checks for an
5751 exact match, rather than just subject name.
5753 The X509_STORE API doesn't directly support the retrieval
5754 of multiple certificates matching a given criteria, however
5755 this can be worked round by performing a lookup first
5756 (which will fill the cache with candidate certificates)
5757 and then examining the cache for matches. This is probably
5758 the best we can do without throwing out X509_LOOKUP
5759 entirely (maybe later...).
5761 The X509_VERIFY_CTX structure has been enhanced considerably.
5763 All certificate lookup operations now go via a get_issuer()
5764 callback. Although this currently uses an X509_STORE it
5765 can be replaced by custom lookups. This is a simple way
5766 to bypass the X509_STORE hackery necessary to make this
5767 work and makes it possible to use more efficient techniques
5768 in future. A very simple version which uses a simple
5769 STACK for its trusted certificate store is also provided
5770 using X509_STORE_CTX_trusted_stack().
5772 The verify_cb() and verify() callbacks now have equivalents
5773 in the X509_STORE_CTX structure.
5775 X509_STORE_CTX also has a 'flags' field which can be used
5776 to customise the verify behaviour.
5779 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5780 excludes S/MIME capabilities.
5783 *) When a certificate request is read in keep a copy of the
5784 original encoding of the signed data and use it when outputing
5785 again. Signatures then use the original encoding rather than
5786 a decoded, encoded version which may cause problems if the
5787 request is improperly encoded.
5790 *) For consistency with other BIO_puts implementations, call
5791 buffer_write(b, ...) directly in buffer_puts instead of calling
5794 In BIO_puts, increment b->num_write as in BIO_write.
5795 [Peter.Sylvester@EdelWeb.fr]
5797 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5798 BN_zero, we may not return a BIGNUM with an array consisting of
5802 *) Avoid calling abort() from within the library when problems are
5803 detected, except if preprocessor symbols have been defined
5804 (such as REF_CHECK, BN_DEBUG etc.).
5807 *) New openssl application 'rsautl'. This utility can be
5808 used for low level RSA operations. DER public key
5809 BIO/fp routines also added.
5812 *) New Configure entry and patches for compiling on QNX 4.
5813 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5815 *) A demo state-machine implementation was sponsored by
5816 Nuron (http://www.nuron.com/) and is now available in
5817 demos/state_machine.
5820 *) New options added to the 'dgst' utility for signature
5821 generation and verification.
5824 *) Unrecognized PKCS#7 content types are now handled via a
5825 catch all ASN1_TYPE structure. This allows unsupported
5826 types to be stored as a "blob" and an application can
5827 encode and decode it manually.
5830 *) Fix various signed/unsigned issues to make a_strex.c
5832 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5834 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5835 length if passed a buffer. ASN1_INTEGER_to_BN failed
5836 if passed a NULL BN and its argument was negative.
5837 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5839 *) Modification to PKCS#7 encoding routines to output definite
5840 length encoding. Since currently the whole structures are in
5841 memory there's not real point in using indefinite length
5842 constructed encoding. However if OpenSSL is compiled with
5843 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5846 *) Added BIO_vprintf() and BIO_vsnprintf().
5849 *) Added more prefixes to parse for in the the strings written
5850 through a logging bio, to cover all the levels that are available
5851 through syslog. The prefixes are now:
5853 PANIC, EMERG, EMR => LOG_EMERG
5854 ALERT, ALR => LOG_ALERT
5855 CRIT, CRI => LOG_CRIT
5856 ERROR, ERR => LOG_ERR
5857 WARNING, WARN, WAR => LOG_WARNING
5858 NOTICE, NOTE, NOT => LOG_NOTICE
5859 INFO, INF => LOG_INFO
5860 DEBUG, DBG => LOG_DEBUG
5862 and as before, if none of those prefixes are present at the
5863 beginning of the string, LOG_ERR is chosen.
5865 On Win32, the LOG_* levels are mapped according to this:
5867 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5868 LOG_WARNING => EVENTLOG_WARNING_TYPE
5869 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5873 *) Made it possible to reconfigure with just the configuration
5874 argument "reconf" or "reconfigure". The command line arguments
5875 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5876 and are retrieved from there when reconfiguring.
5880 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5882 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5885 *) The obj_dat.pl script was messing up the sorting of object
5886 names. The reason was that it compared the quoted version
5887 of strings as a result "OCSP" > "OCSP Signing" because
5888 " > SPACE. Changed script to store unquoted versions of
5889 names and add quotes on output. It was also omitting some
5890 names from the lookup table if they were given a default
5891 value (that is if SN is missing it is given the same
5892 value as LN and vice versa), these are now added on the
5893 grounds that if an object has a name we should be able to
5894 look it up. Finally added warning output when duplicate
5895 short or long names are found.
5898 *) Changes needed for Tandem NSK.
5899 [Scott Uroff <scott@xypro.com>]
5901 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5902 RSA_padding_check_SSLv23(), special padding was never detected
5903 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5904 version rollback attacks was not effective.
5906 In s23_clnt.c, don't use special rollback-attack detection padding
5907 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5908 client; similarly, in s23_srvr.c, don't do the rollback check if
5909 SSL 2.0 is the only protocol enabled in the server.
5912 *) Make it possible to get hexdumps of unprintable data with 'openssl
5913 asn1parse'. By implication, the functions ASN1_parse_dump() and
5914 BIO_dump_indent() are added.
5917 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5918 these print out strings and name structures based on various
5919 flags including RFC2253 support and proper handling of
5920 multibyte characters. Added options to the 'x509' utility
5921 to allow the various flags to be set.
5924 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5925 Also change the functions X509_cmp_current_time() and
5926 X509_gmtime_adj() work with an ASN1_TIME structure,
5927 this will enable certificates using GeneralizedTime in validity
5928 dates to be checked.
5931 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5932 negative public key encodings) on by default,
5933 NO_NEG_PUBKEY_BUG can be set to disable it.
5936 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5937 content octets. An i2c_ASN1_OBJECT is unnecessary because
5938 the encoding can be trivially obtained from the structure.
5941 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5942 not read locks (CRYPTO_r_[un]lock).
5945 *) A first attempt at creating official support for shared
5946 libraries through configuration. I've kept it so the
5947 default is static libraries only, and the OpenSSL programs
5948 are always statically linked for now, but there are
5949 preparations for dynamic linking in place.
5950 This has been tested on Linux and Tru64.
5953 *) Randomness polling function for Win9x, as described in:
5954 Peter Gutmann, Software Generation of Practically Strong
5958 *) Fix so PRNG is seeded in req if using an already existing
5962 *) New options to smime application. -inform and -outform
5963 allow alternative formats for the S/MIME message including
5964 PEM and DER. The -content option allows the content to be
5965 specified separately. This should allow things like Netscape
5966 form signing output easier to verify.
5969 *) Fix the ASN1 encoding of tags using the 'long form'.
5972 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5973 STRING types. These convert content octets to and from the
5974 underlying type. The actual tag and length octets are
5975 already assumed to have been read in and checked. These
5976 are needed because all other string types have virtually
5977 identical handling apart from the tag. By having versions
5978 of the ASN1 functions that just operate on content octets
5979 IMPLICIT tagging can be handled properly. It also allows
5980 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5981 and ASN1_INTEGER are identical apart from the tag.
5984 *) Change the handling of OID objects as follows:
5986 - New object identifiers are inserted in objects.txt, following
5987 the syntax given in objects.README.
5988 - objects.pl is used to process obj_mac.num and create a new
5990 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5993 This is currently kind of a hack, and the perl code in objects.pl
5994 isn't very elegant, but it works as I intended. The simplest way
5995 to check that it worked correctly is to look in obj_dat.h and
5996 check the array nid_objs and make sure the objects haven't moved
5997 around (this is important!). Additions are OK, as well as
5998 consistent name changes.
6001 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6004 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6005 The given file adds to whatever has already been seeded into the
6006 random pool through the RANDFILE configuration file option or
6007 environment variable, or the default random state file.
6010 *) mkstack.pl now sorts each macro group into lexical order.
6011 Previously the output order depended on the order the files
6012 appeared in the directory, resulting in needless rewriting
6016 *) Patches to make OpenSSL compile under Win32 again. Mostly
6017 work arounds for the VC++ problem that it treats func() as
6018 func(void). Also stripped out the parts of mkdef.pl that
6019 added extra typesafe functions: these no longer exist.
6022 *) Reorganisation of the stack code. The macros are now all
6023 collected in safestack.h . Each macro is defined in terms of
6024 a "stack macro" of the form SKM_<name>(type, a, b). The
6025 DEBUG_SAFESTACK is now handled in terms of function casts,
6026 this has the advantage of retaining type safety without the
6027 use of additional functions. If DEBUG_SAFESTACK is not defined
6028 then the non typesafe macros are used instead. Also modified the
6029 mkstack.pl script to handle the new form. Needs testing to see
6030 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6031 the default if no major problems. Similar behaviour for ASN1_SET_OF
6032 and PKCS12_STACK_OF.
6035 *) When some versions of IIS use the 'NET' form of private key the
6036 key derivation algorithm is different. Normally MD5(password) is
6037 used as a 128 bit RC4 key. In the modified case
6038 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6039 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6040 as the old Netscape_RSA functions except they have an additional
6041 'sgckey' parameter which uses the modified algorithm. Also added
6042 an -sgckey command line option to the rsa utility. Thanks to
6043 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6044 algorithm to openssl-dev.
6047 *) The evp_local.h macros were using 'c.##kname' which resulted in
6048 invalid expansion on some systems (SCO 5.0.5 for example).
6049 Corrected to 'c.kname'.
6050 [Phillip Porch <root@theporch.com>]
6052 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6053 a STACK of email addresses from a certificate or request, these look
6054 in the subject name and the subject alternative name extensions and
6055 omit any duplicate addresses.
6058 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6059 This makes DSA verification about 2 % faster.
6062 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6063 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6064 plus overhead for 1024 bit moduli).
6065 This makes exponentiations about 0.5 % faster for 1024 bit
6066 exponents (as measured by "openssl speed rsa2048").
6069 *) Rename memory handling macros to avoid conflicts with other
6071 Malloc => OPENSSL_malloc
6072 Malloc_locked => OPENSSL_malloc_locked
6073 Realloc => OPENSSL_realloc
6074 Free => OPENSSL_free
6077 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6078 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6081 *) CygWin32 support.
6082 [John Jarvie <jjarvie@newsguy.com>]
6084 *) The type-safe stack code has been rejigged. It is now only compiled
6085 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6086 by default all type-specific stack functions are "#define"d back to
6087 standard stack functions. This results in more streamlined output
6088 but retains the type-safety checking possibilities of the original
6092 *) The STACK code has been cleaned up, and certain type declarations
6093 that didn't make a lot of sense have been brought in line. This has
6094 also involved a cleanup of sorts in safestack.h to more correctly
6095 map type-safe stack functions onto their plain stack counterparts.
6096 This work has also resulted in a variety of "const"ifications of
6097 lots of the code, especially "_cmp" operations which should normally
6098 be prototyped with "const" parameters anyway.
6101 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6102 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6103 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6104 where all of 'md' is used each time the PRNG is used, but 'state'
6105 is used only indexed by a cyclic counter. As entropy may not be
6106 well distributed from the beginning, 'md' is important as a
6107 chaining variable. However, the output function chains only half
6108 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6109 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6110 in all of 'state' being rewritten, with the new values depending
6111 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6114 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6115 the handshake is continued after ssl_verify_cert_chain();
6116 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6117 can lead to 'unexplainable' connection aborts later.
6118 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6120 *) Major EVP API cipher revision.
6121 Add hooks for extra EVP features. This allows various cipher
6122 parameters to be set in the EVP interface. Support added for variable
6123 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6124 setting of RC2 and RC5 parameters.
6126 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6129 Remove lots of duplicated code from the EVP library. For example *every*
6130 cipher init() function handles the 'iv' in the same way according to the
6131 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6132 for CFB and OFB modes they zero ctx->num.
6134 New functionality allows removal of S/MIME code RC2 hack.
6136 Most of the routines have the same form and so can be declared in terms
6139 By shifting this to the top level EVP_CipherInit() it can be removed from
6140 all individual ciphers. If the cipher wants to handle IVs or keys
6141 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6144 Change lots of functions like EVP_EncryptUpdate() to now return a
6145 value: although software versions of the algorithms cannot fail
6146 any installed hardware versions can.
6149 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6150 this option is set, tolerate broken clients that send the negotiated
6151 protocol version number instead of the requested protocol version
6155 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6156 i.e. non-zero for export ciphersuites, zero otherwise.
6157 Previous versions had this flag inverted, inconsistent with
6158 rsa_tmp_cb (..._TMP_RSA_CB).
6159 [Bodo Moeller; problem reported by Amit Chopra]
6161 *) Add missing DSA library text string. Work around for some IIS
6162 key files with invalid SEQUENCE encoding.
6165 *) Add a document (doc/standards.txt) that list all kinds of standards
6166 and so on that are implemented in OpenSSL.
6169 *) Enhance c_rehash script. Old version would mishandle certificates
6170 with the same subject name hash and wouldn't handle CRLs at all.
6171 Added -fingerprint option to crl utility, to support new c_rehash
6175 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6178 *) Fix for SSL server purpose checking. Server checking was
6179 rejecting certificates which had extended key usage present
6180 but no ssl client purpose.
6181 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6183 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6184 is a little unclear about how a blank password is handled.
6185 Since the password in encoded as a BMPString with terminating
6186 double NULL a zero length password would end up as just the
6187 double NULL. However no password at all is different and is
6188 handled differently in the PKCS#12 key generation code. NS
6189 treats a blank password as zero length. MSIE treats it as no
6190 password on export: but it will try both on import. We now do
6191 the same: PKCS12_parse() tries zero length and no password if
6192 the password is set to "" or NULL (NULL is now a valid password:
6193 it wasn't before) as does the pkcs12 application.
6196 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6197 perror when PEM_read_bio_X509_REQ fails, the error message must
6198 be obtained from the error queue.
6201 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6202 it in ERR_remove_state if appropriate, and change ERR_get_state
6203 accordingly to avoid race conditions (this is necessary because
6204 thread_hash is no longer constant once set).
6207 *) Bugfix for linux-elf makefile.one.
6210 *) RSA_get_default_method() will now cause a default
6211 RSA_METHOD to be chosen if one doesn't exist already.
6212 Previously this was only set during a call to RSA_new()
6213 or RSA_new_method(NULL) meaning it was possible for
6214 RSA_get_default_method() to return NULL.
6217 *) Added native name translation to the existing DSO code
6218 that will convert (if the flag to do so is set) filenames
6219 that are sufficiently small and have no path information
6220 into a canonical native form. Eg. "blah" converted to
6221 "libblah.so" or "blah.dll" etc.
6224 *) New function ERR_error_string_n(e, buf, len) which is like
6225 ERR_error_string(e, buf), but writes at most 'len' bytes
6226 including the 0 terminator. For ERR_error_string_n, 'buf'
6228 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6230 *) CONF library reworked to become more general. A new CONF
6231 configuration file reader "class" is implemented as well as a
6232 new functions (NCONF_*, for "New CONF") to handle it. The now
6233 old CONF_* functions are still there, but are reimplemented to
6234 work in terms of the new functions. Also, a set of functions
6235 to handle the internal storage of the configuration data is
6236 provided to make it easier to write new configuration file
6237 reader "classes" (I can definitely see something reading a
6238 configuration file in XML format, for example), called _CONF_*,
6239 or "the configuration storage API"...
6241 The new configuration file reading functions are:
6243 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6244 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6246 NCONF_default, NCONF_WIN32
6248 NCONF_dump_fp, NCONF_dump_bio
6250 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6251 NCONF_new creates a new CONF object. This works in the same way
6252 as other interfaces in OpenSSL, like the BIO interface.
6253 NCONF_dump_* dump the internal storage of the configuration file,
6254 which is useful for debugging. All other functions take the same
6255 arguments as the old CONF_* functions wth the exception of the
6256 first that must be a `CONF *' instead of a `LHASH *'.
6258 To make it easer to use the new classes with the old CONF_* functions,
6259 the function CONF_set_default_method is provided.
6262 *) Add '-tls1' option to 'openssl ciphers', which was already
6263 mentioned in the documentation but had not been implemented.
6264 (This option is not yet really useful because even the additional
6265 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6268 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6269 OpenSSL-based applications) load shared libraries and bind to
6270 them in a portable way.
6271 [Geoff Thorpe, with contributions from Richard Levitte]
6273 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6275 *) Make sure _lrotl and _lrotr are only used with MSVC.
6277 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6278 (the default implementation of RAND_status).
6280 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6281 to '-clrext' (= clear extensions), as intended and documented.
6282 [Bodo Moeller; inconsistency pointed out by Michael Attili
6285 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6286 was larger than the MD block size.
6287 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6289 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6290 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6291 using the passed key: if the passed key was a private key the result
6292 of X509_print(), for example, would be to print out all the private key
6296 *) des_quad_cksum() byte order bug fix.
6297 [Ulf Möller, using the problem description in krb4-0.9.7, where
6298 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6300 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6302 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6304 *) For easily testing in shell scripts whether some command
6305 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6306 returns with exit code 0 iff no command of the given name is available.
6307 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6308 the output goes to stdout and nothing is printed to stderr.
6309 Additional arguments are always ignored.
6311 Since for each cipher there is a command of the same name,
6312 the 'no-cipher' compilation switches can be tested this way.
6314 ('openssl no-XXX' is not able to detect pseudo-commands such
6315 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6318 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6321 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6322 is set; it will be thrown away anyway because each handshake creates
6324 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6325 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6326 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6327 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6330 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6331 'Q' and 'R' lose their special meanings (quit/renegotiate).
6332 This is part of what -quiet does; unlike -quiet, -ign_eof
6333 does not suppress any output.
6336 *) Add compatibility options to the purpose and trust code. The
6337 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6338 accepts a certificate or CA, this was the previous behaviour,
6339 with all the associated security issues.
6341 X509_TRUST_COMPAT is the old trust behaviour: only and
6342 automatically trust self signed roots in certificate store. A
6343 new trust setting X509_TRUST_DEFAULT is used to specify that
6344 a purpose has no associated trust setting and it should instead
6345 use the value in the default purpose.
6348 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6349 and fix a memory leak.
6352 *) In util/mkerr.pl (which implements 'make errors'), preserve
6353 reason strings from the previous version of the .c file, as
6354 the default to have only downcase letters (and digits) in
6355 automatically generated reasons codes is not always appropriate.
6358 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6359 using strerror. Previously, ERR_reason_error_string() returned
6360 library names as reason strings for SYSerr; but SYSerr is a special
6361 case where small numbers are errno values, not library numbers.
6364 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6365 converts DSA parameters into DH parameters. (When creating parameters,
6366 DSA_generate_parameters is used.)
6369 *) Include 'length' (recommended exponent length) in C code generated
6370 by 'openssl dhparam -C'.
6373 *) The second argument to set_label in perlasm was already being used
6374 so couldn't be used as a "file scope" flag. Moved to third argument
6378 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6379 instead of RAND_bytes for encryption IVs and salts.
6382 *) Include RAND_status() into RAND_METHOD instead of implementing
6383 it only for md_rand.c Otherwise replacing the PRNG by calling
6384 RAND_set_rand_method would be impossible.
6387 *) Don't let DSA_generate_key() enter an infinite loop if the random
6388 number generation fails.
6391 *) New 'rand' application for creating pseudo-random output.
6394 *) Added configuration support for Linux/IA64
6395 [Rolf Haberrecker <rolf@suse.de>]
6397 *) Assembler module support for Mingw32.
6400 *) Shared library support for HPUX (in shlib/).
6401 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6403 *) Shared library support for Solaris gcc.
6404 [Lutz Behnke <behnke@trustcenter.de>]
6406 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6408 *) PKCS7_encrypt() was adding text MIME headers twice because they
6409 were added manually and by SMIME_crlf_copy().
6412 *) In bntest.c don't call BN_rand with zero bits argument.
6413 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6415 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6416 case was implemented. This caused BN_div_recp() to fail occasionally.
6419 *) Add an optional second argument to the set_label() in the perl
6420 assembly language builder. If this argument exists and is set
6421 to 1 it signals that the assembler should use a symbol whose
6422 scope is the entire file, not just the current function. This
6423 is needed with MASM which uses the format label:: for this scope.
6424 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6426 *) Change the ASN1 types so they are typedefs by default. Before
6427 almost all types were #define'd to ASN1_STRING which was causing
6428 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6432 *) Change names of new functions to the new get1/get0 naming
6433 convention: After 'get1', the caller owns a reference count
6434 and has to call ..._free; 'get0' returns a pointer to some
6435 data structure without incrementing reference counters.
6436 (Some of the existing 'get' functions increment a reference
6437 counter, some don't.)
6438 Similarly, 'set1' and 'add1' functions increase reference
6439 counters or duplicate objects.
6442 *) Allow for the possibility of temp RSA key generation failure:
6443 the code used to assume it always worked and crashed on failure.
6446 *) Fix potential buffer overrun problem in BIO_printf().
6447 [Ulf Möller, using public domain code by Patrick Powell; problem
6448 pointed out by David Sacerdote <das33@cornell.edu>]
6450 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6451 RAND_egd() and RAND_status(). In the command line application,
6452 the EGD socket can be specified like a seed file using RANDFILE
6456 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6457 Some CAs (e.g. Verisign) distribute certificates in this form.
6460 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6461 list to exclude them. This means that no special compilation option
6462 is needed to use anonymous DH: it just needs to be included in the
6466 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6467 EVP_MD_type. The old functionality is available in a new macro called
6468 EVP_MD_md(). Change code that uses it and update docs.
6471 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6472 where the 'void *' argument is replaced by a function pointer argument.
6473 Previously 'void *' was abused to point to functions, which works on
6474 many platforms, but is not correct. As these functions are usually
6475 called by macros defined in OpenSSL header files, most source code
6476 should work without changes.
6479 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6480 sections with information on -D... compiler switches used for
6481 compiling the library so that applications can see them. To enable
6482 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6483 must be defined. E.g.,
6484 #define OPENSSL_ALGORITHM_DEFINES
6485 #include <openssl/opensslconf.h>
6486 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6487 [Richard Levitte, Ulf and Bodo Möller]
6489 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6493 *) Change the 'other' type in certificate aux info to a STACK_OF
6494 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6495 the required ASN1 format: arbitrary types determined by an OID.
6498 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6499 argument to 'req'. This is not because the function is newer or
6500 better than others it just uses the work 'NEW' in the certificate
6501 request header lines. Some software needs this.
6504 *) Reorganise password command line arguments: now passwords can be
6505 obtained from various sources. Delete the PEM_cb function and make
6506 it the default behaviour: i.e. if the callback is NULL and the
6507 usrdata argument is not NULL interpret it as a null terminated pass
6508 phrase. If usrdata and the callback are NULL then the pass phrase
6509 is prompted for as usual.
6512 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6513 the support is automatically enabled. The resulting binaries will
6514 autodetect the card and use it if present.
6515 [Ben Laurie and Compaq Inc.]
6517 *) Work around for Netscape hang bug. This sends certificate request
6518 and server done in one record. Since this is perfectly legal in the
6519 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6520 the bugs/SSLv3 entry for more info.
6523 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6526 *) Add -rand argument to smime and pkcs12 applications and read/write
6530 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6533 *) Add command line password options to the remaining applications.
6536 *) Bug fix for BN_div_recp() for numerators with an even number of
6540 *) More tests in bntest.c, and changed test_bn output.
6543 *) ./config recognizes MacOS X now.
6546 *) Bug fix for BN_div() when the first words of num and divsor are
6547 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6550 *) Add support for various broken PKCS#8 formats, and command line
6551 options to produce them.
6554 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6555 get temporary BIGNUMs from a BN_CTX.
6558 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6562 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6563 include a #define from the old name to the new. The original intent
6564 was that statically linked binaries could for example just call
6565 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6566 link with digests. This never worked becayse SSLeay_add_all_digests()
6567 and SSLeay_add_all_ciphers() were in the same source file so calling
6568 one would link with the other. They are now in separate source files.
6571 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6574 *) Use a less unusual form of the Miller-Rabin primality test (it used
6575 a binary algorithm for exponentiation integrated into the Miller-Rabin
6576 loop, our standard modexp algorithms are faster).
6579 *) Support for the EBCDIC character set completed.
6580 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6582 *) Source code cleanups: use const where appropriate, eliminate casts,
6583 use void * instead of char * in lhash.
6586 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6587 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6588 this the server could overwrite ephemeral keys that the client
6592 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6593 using 50 iterations of the Rabin-Miller test.
6595 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6596 iterations of the Rabin-Miller test as required by the appendix
6597 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6598 As BN_is_prime_fasttest includes trial division, DSA parameter
6599 generation becomes much faster.
6601 This implies a change for the callback functions in DSA_is_prime
6602 and DSA_generate_parameters: The callback function is called once
6603 for each positive witness in the Rabin-Miller test, not just
6604 occasionally in the inner loop; and the parameters to the
6605 callback function now provide an iteration count for the outer
6606 loop rather than for the current invocation of the inner loop.
6607 DSA_generate_parameters additionally can call the callback
6608 function with an 'iteration count' of -1, meaning that a
6609 candidate has passed the trial division test (when q is generated
6610 from an application-provided seed, trial division is skipped).
6613 *) New function BN_is_prime_fasttest that optionally does trial
6614 division before starting the Rabin-Miller test and has
6615 an additional BN_CTX * argument (whereas BN_is_prime always
6616 has to allocate at least one BN_CTX).
6617 'callback(1, -1, cb_arg)' is called when a number has passed the
6618 trial division stage.
6621 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6625 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6628 *) New function BN_pseudo_rand().
6631 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6632 bignum version of BN_from_montgomery() with the working code from
6633 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6637 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6638 made it impossible to use the same SSL_SESSION data structure in
6639 SSL2 clients in multiple threads.
6642 *) The return value of RAND_load_file() no longer counts bytes obtained
6643 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6644 to seed the PRNG (previously an explicit byte count was required).
6645 [Ulf Möller, Bodo Möller]
6647 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6648 used (char *) instead of (void *) and had casts all over the place.
6651 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6654 *) Retain source code compatibility for BN_prime_checks macro:
6655 BN_is_prime(..., BN_prime_checks, ...) now uses
6656 BN_prime_checks_for_size to determine the appropriate number of
6657 Rabin-Miller iterations.
6660 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6661 DH_CHECK_P_NOT_SAFE_PRIME.
6662 (Check if this is true? OpenPGP calls them "strong".)
6665 *) Merge the functionality of "dh" and "gendh" programs into a new program
6666 "dhparam". The old programs are retained for now but will handle DH keys
6667 (instead of parameters) in future.
6670 *) Make the ciphers, s_server and s_client programs check the return values
6671 when a new cipher list is set.
6674 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6675 ciphers. Before when the 56bit ciphers were enabled the sorting was
6678 The syntax for the cipher sorting has been extended to support sorting by
6679 cipher-strength (using the strength_bits hard coded in the tables).
6680 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6682 Fix a bug in the cipher-command parser: when supplying a cipher command
6683 string with an "undefined" symbol (neither command nor alphanumeric
6684 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6685 an error is flagged.
6687 Due to the strength-sorting extension, the code of the
6688 ssl_create_cipher_list() function was completely rearranged. I hope that
6689 the readability was also increased :-)
6690 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6692 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6693 for the first serial number and places 2 in the serial number file. This
6694 avoids problems when the root CA is created with serial number zero and
6695 the first user certificate has the same issuer name and serial number
6699 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6700 the new code. Add documentation for this stuff.
6703 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6704 X509_*() to X509at_*() on the grounds that they don't handle X509
6705 structures and behave in an analagous way to the X509v3 functions:
6706 they shouldn't be called directly but wrapper functions should be used
6709 So we also now have some wrapper functions that call the X509at functions
6710 when passed certificate requests. (TO DO: similar things can be done with
6711 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6712 things. Some of these need some d2i or i2d and print functionality
6713 because they handle more complex structures.)
6716 *) Add missing #ifndefs that caused missing symbols when building libssl
6717 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6718 NO_RSA in ssl/s2*.c.
6719 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6721 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6722 has a return value which indicates the quality of the random data
6723 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6724 error queue. New function RAND_pseudo_bytes() generates output that is
6725 guaranteed to be unique but not unpredictable. RAND_add is like
6726 RAND_seed, but takes an extra argument for an entropy estimate
6727 (RAND_seed always assumes full entropy).
6730 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6731 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6732 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6733 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6734 false-positive rate of at most 2^-80 for random input.
6737 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6740 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6741 in the 0.9.5 release), this returns the chain
6742 from an X509_CTX structure with a dup of the stack and all
6743 the X509 reference counts upped: so the stack will exist
6744 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6747 Also make SSL_SESSION_print() print out the verify return
6751 *) Add manpage for the pkcs12 command. Also change the default
6752 behaviour so MAC iteration counts are used unless the new
6753 -nomaciter option is used. This improves file security and
6754 only older versions of MSIE (4.0 for example) need it.
6757 *) Honor the no-xxx Configure options when creating .DEF files.
6760 *) Add PKCS#10 attributes to field table: challengePassword,
6761 unstructuredName and unstructuredAddress. These are taken from
6762 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6763 international characters are used.
6765 More changes to X509_ATTRIBUTE code: allow the setting of types
6766 based on strings. Remove the 'loc' parameter when adding
6767 attributes because these will be a SET OF encoding which is sorted
6771 *) Initial changes to the 'req' utility to allow request generation
6772 automation. This will allow an application to just generate a template
6773 file containing all the field values and have req construct the
6776 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6777 used all over the place including certificate requests and PKCS#7
6778 structures. They are currently handled manually where necessary with
6779 some primitive wrappers for PKCS#7. The new functions behave in a
6780 manner analogous to the X509 extension functions: they allow
6781 attributes to be looked up by NID and added.
6783 Later something similar to the X509V3 code would be desirable to
6784 automatically handle the encoding, decoding and printing of the
6785 more complex types. The string types like challengePassword can
6786 be handled by the string table functions.
6788 Also modified the multi byte string table handling. Now there is
6789 a 'global mask' which masks out certain types. The table itself
6790 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6791 is useful when for example there is only one permissible type
6792 (as in countryName) and using the mask might result in no valid
6796 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6797 SSL_get_peer_finished to allow applications to obtain the latest
6798 Finished messages sent to the peer or expected from the peer,
6799 respectively. (SSL_get_peer_finished is usually the Finished message
6800 actually received from the peer, otherwise the protocol will be aborted.)
6802 As the Finished message are message digests of the complete handshake
6803 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6804 be used for external authentication procedures when the authentication
6805 provided by SSL/TLS is not desired or is not enough.
6808 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6809 the host supports BWX extension and if Compaq C is present on the
6810 $PATH. Just exploiting of the BWX extension results in 20-30%
6811 performance kick for some algorithms, e.g. DES and RC4 to mention
6812 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6816 *) Add support for MS "fast SGC". This is arguably a violation of the
6817 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6818 weak crypto and after checking the certificate is SGC a second one
6819 with strong crypto. MS SGC stops the first handshake after receiving
6820 the server certificate message and sends a second client hello. Since
6821 a server will typically do all the time consuming operations before
6822 expecting any further messages from the client (server key exchange
6823 is the most expensive) there is little difference between the two.
6825 To get OpenSSL to support MS SGC we have to permit a second client
6826 hello message after we have sent server done. In addition we have to
6827 reset the MAC if we do get this second client hello.
6830 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6831 if a DER encoded private key is RSA or DSA traditional format. Changed
6832 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6833 format DER encoded private key. Newer code should use PKCS#8 format which
6834 has the key type encoded in the ASN1 structure. Added DER private key
6835 support to pkcs8 application.
6838 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6839 ciphersuites has been selected (as required by the SSL 3/TLS 1
6840 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6841 is set, we interpret this as a request to violate the specification
6842 (the worst that can happen is a handshake failure, and 'correct'
6843 behaviour would result in a handshake failure anyway).
6846 *) In SSL_CTX_add_session, take into account that there might be multiple
6847 SSL_SESSION structures with the same session ID (e.g. when two threads
6848 concurrently obtain them from an external cache).
6849 The internal cache can handle only one SSL_SESSION with a given ID,
6850 so if there's a conflict, we now throw out the old one to achieve
6854 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6855 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6856 some routines that use cipher OIDs: some ciphers do not have OIDs
6857 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6861 *) Simplify the trust setting structure and code. Now we just have
6862 two sequences of OIDs for trusted and rejected settings. These will
6863 typically have values the same as the extended key usage extension
6864 and any application specific purposes.
6866 The trust checking code now has a default behaviour: it will just
6867 check for an object with the same NID as the passed id. Functions can
6868 be provided to override either the default behaviour or the behaviour
6869 for a given id. SSL client, server and email already have functions
6870 in place for compatibility: they check the NID and also return "trusted"
6871 if the certificate is self signed.
6874 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6875 traditional format into an EVP_PKEY structure.
6878 *) Add a password callback function PEM_cb() which either prompts for
6879 a password if usr_data is NULL or otherwise assumes it is a null
6880 terminated password. Allow passwords to be passed on command line
6881 environment or config files in a few more utilities.
6884 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6885 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6886 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6887 Update documentation.
6890 *) Support for ASN1 "NULL" type. This could be handled before by using
6891 ASN1_TYPE but there wasn't any function that would try to read a NULL
6892 and produce an error if it couldn't. For compatibility we also have
6893 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6894 don't allocate anything because they don't need to.
6897 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6899 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6901 *) Rebuild of the memory allocation routines used by OpenSSL code and
6902 possibly others as well. The purpose is to make an interface that
6903 provide hooks so anyone can build a separate set of allocation and
6904 deallocation routines to be used by OpenSSL, for example memory
6905 pool implementations, or something else, which was previously hard
6906 since Malloc(), Realloc() and Free() were defined as macros having
6907 the values malloc, realloc and free, respectively (except for Win32
6908 compilations). The same is provided for memory debugging code.
6909 OpenSSL already comes with functionality to find memory leaks, but
6910 this gives people a chance to debug other memory problems.
6912 With these changes, a new set of functions and macros have appeared:
6914 CRYPTO_set_mem_debug_functions() [F]
6915 CRYPTO_get_mem_debug_functions() [F]
6916 CRYPTO_dbg_set_options() [F]
6917 CRYPTO_dbg_get_options() [F]
6918 CRYPTO_malloc_debug_init() [M]
6920 The memory debug functions are NULL by default, unless the library
6921 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6922 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6923 gives the standard debugging functions that come with OpenSSL) or
6924 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6925 provided by the library user) must be used. When the standard
6926 debugging functions are used, CRYPTO_dbg_set_options can be used to
6927 request additional information:
6928 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6929 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6931 Also, things like CRYPTO_set_mem_functions will always give the
6932 expected result (the new set of functions is used for allocation
6933 and deallocation) at all times, regardless of platform and compiler
6936 To finish it up, some functions that were never use in any other
6937 way than through macros have a new API and new semantic:
6940 CRYPTO_dbg_realloc()
6943 All macros of value have retained their old syntax.
6944 [Richard Levitte and Bodo Moeller]
6946 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6947 ordering of SMIMECapabilities wasn't in "strength order" and there
6948 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6952 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6953 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6954 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6956 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6957 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6958 functionality to handle multipart/signed properly) and a utility
6959 called 'smime' to call all this stuff. This is based on code I
6960 originally wrote for Celo who have kindly allowed it to be
6961 included in OpenSSL.
6964 *) Add variants des_set_key_checked and des_set_key_unchecked of
6965 des_set_key (aka des_key_sched). Global variable des_check_key
6966 decides which of these is called by des_set_key; this way
6967 des_check_key behaves as it always did, but applications and
6968 the library itself, which was buggy for des_check_key == 1,
6969 have a cleaner way to pick the version they need.
6972 *) New function PKCS12_newpass() which changes the password of a
6976 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6977 dynamic mix. In both cases the ids can be used as an index into the
6978 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6979 functions so they accept a list of the field values and the
6980 application doesn't need to directly manipulate the X509_TRUST
6984 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6988 *) Modify the way the V3 extension code looks up extensions. This now
6989 works in a similar way to the object code: we have some "standard"
6990 extensions in a static table which is searched with OBJ_bsearch()
6991 and the application can add dynamic ones if needed. The file
6992 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6993 updated whenever a new extension is added to the core code and kept
6994 in ext_nid order. There is a simple program 'tabtest.c' which checks
6995 this. New extensions are not added too often so this file can readily
6996 be maintained manually.
6998 There are two big advantages in doing things this way. The extensions
6999 can be looked up immediately and no longer need to be "added" using
7000 X509V3_add_standard_extensions(): this function now does nothing.
7001 [Side note: I get *lots* of email saying the extension code doesn't
7002 work because people forget to call this function]
7003 Also no dynamic allocation is done unless new extensions are added:
7004 so if we don't add custom extensions there is no need to call
7005 X509V3_EXT_cleanup().
7008 *) Modify enc utility's salting as follows: make salting the default. Add a
7009 magic header, so unsalted files fail gracefully instead of just decrypting
7010 to garbage. This is because not salting is a big security hole, so people
7011 should be discouraged from doing it.
7014 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7015 digest to be passed on the command line but it only used this
7016 parameter when signing a certificate. Modified so all relevant
7017 operations are affected by the digest parameter including the
7018 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7019 DSA key was used because it didn't fix the digest.
7022 *) Initial certificate chain verify code. Currently tests the untrusted
7023 certificates for consistency with the verify purpose (which is set
7024 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7026 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7027 this is because it will reject chains with invalid extensions whereas
7028 every previous version of OpenSSL and SSLeay made no checks at all.
7030 Trust code: checks the root CA for the relevant trust settings. Trust
7031 settings have an initial value consistent with the verify purpose: e.g.
7032 if the verify purpose is for SSL client use it expects the CA to be
7033 trusted for SSL client use. However the default value can be changed to
7034 permit custom trust settings: one example of this would be to only trust
7035 certificates from a specific "secure" set of CAs.
7037 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7038 which should be used for version portability: especially since the
7039 verify structure is likely to change more often now.
7041 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7042 to set them. If not set then assume SSL clients will verify SSL servers
7045 Two new options to the verify program: -untrusted allows a set of
7046 untrusted certificates to be passed in and -purpose which sets the
7047 intended purpose of the certificate. If a purpose is set then the
7048 new chain verify code is used to check extension consistency.
7051 *) Support for the authority information access extension.
7054 *) Modify RSA and DSA PEM read routines to transparently handle
7055 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7056 public keys in a format compatible with certificate
7057 SubjectPublicKeyInfo structures. Unfortunately there were already
7058 functions called *_PublicKey_* which used various odd formats so
7059 these are retained for compatibility: however the DSA variants were
7060 never in a public release so they have been deleted. Changed dsa/rsa
7061 utilities to handle the new format: note no releases ever handled public
7062 keys so we should be OK.
7064 The primary motivation for this change is to avoid the same fiasco
7065 that dogs private keys: there are several incompatible private key
7066 formats some of which are standard and some OpenSSL specific and
7067 require various evil hacks to allow partial transparent handling and
7068 even then it doesn't work with DER formats. Given the option anything
7069 other than PKCS#8 should be dumped: but the other formats have to
7070 stay in the name of compatibility.
7072 With public keys and the benefit of hindsight one standard format
7073 is used which works with EVP_PKEY, RSA or DSA structures: though
7074 it clearly returns an error if you try to read the wrong kind of key.
7076 Added a -pubkey option to the 'x509' utility to output the public key.
7077 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7078 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7079 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7080 that do the same as the EVP_PKEY_assign_*() except they up the
7081 reference count of the added key (they don't "swallow" the
7085 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7086 CRLs would fail if the file contained no certificates or no CRLs:
7087 added a new function to read in both types and return the number
7088 read: this means that if none are read it will be an error. The
7089 DER versions of the certificate and CRL reader would always fail
7090 because it isn't possible to mix certificates and CRLs in DER format
7091 without choking one or the other routine. Changed this to just read
7092 a certificate: this is the best we can do. Also modified the code
7093 in apps/verify.c to take notice of return codes: it was previously
7094 attempting to read in certificates from NULL pointers and ignoring
7095 any errors: this is one reason why the cert and CRL reader seemed
7096 to work. It doesn't check return codes from the default certificate
7097 routines: these may well fail if the certificates aren't installed.
7100 *) Code to support otherName option in GeneralName.
7103 *) First update to verify code. Change the verify utility
7104 so it warns if it is passed a self signed certificate:
7105 for consistency with the normal behaviour. X509_verify
7106 has been modified to it will now verify a self signed
7107 certificate if *exactly* the same certificate appears
7108 in the store: it was previously impossible to trust a
7109 single self signed certificate. This means that:
7110 openssl verify ss.pem
7111 now gives a warning about a self signed certificate but
7112 openssl verify -CAfile ss.pem ss.pem
7116 *) For servers, store verify_result in SSL_SESSION data structure
7117 (and add it to external session representation).
7118 This is needed when client certificate verifications fails,
7119 but an application-provided verification callback (set by
7120 SSL_CTX_set_cert_verify_callback) allows accepting the session
7121 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7122 but returns 1): When the session is reused, we have to set
7123 ssl->verify_result to the appropriate error code to avoid
7125 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7127 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7128 case in PKCS7_dataInit() where the signed PKCS7 structure
7129 didn't contain any existing data because it was being created.
7130 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7132 *) Add a salt to the key derivation routines in enc.c. This
7133 forms the first 8 bytes of the encrypted file. Also add a
7134 -S option to allow a salt to be input on the command line.
7137 *) New function X509_cmp(). Oddly enough there wasn't a function
7138 to compare two certificates. We do this by working out the SHA1
7139 hash and comparing that. X509_cmp() will be needed by the trust
7143 *) SSL_get1_session() is like SSL_get_session(), but increments
7144 the reference count in the SSL_SESSION returned.
7145 [Geoff Thorpe <geoff@eu.c2.net>]
7147 *) Fix for 'req': it was adding a null to request attributes.
7148 Also change the X509_LOOKUP and X509_INFO code to handle
7149 certificate auxiliary information.
7152 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7156 *) Add the possibility to add extra information to the memory leak
7157 detecting output, to form tracebacks, showing from where each
7158 allocation was originated: CRYPTO_push_info("constant string") adds
7159 the string plus current file name and line number to a per-thread
7160 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7161 is like calling CYRPTO_pop_info() until the stack is empty.
7162 Also updated memory leak detection code to be multi-thread-safe.
7165 *) Add options -text and -noout to pkcs7 utility and delete the
7166 encryption options which never did anything. Update docs.
7169 *) Add options to some of the utilities to allow the pass phrase
7170 to be included on either the command line (not recommended on
7171 OSes like Unix) or read from the environment. Update the
7172 manpages and fix a few bugs.
7175 *) Add a few manpages for some of the openssl commands.
7178 *) Fix the -revoke option in ca. It was freeing up memory twice,
7179 leaking and not finding already revoked certificates.
7182 *) Extensive changes to support certificate auxiliary information.
7183 This involves the use of X509_CERT_AUX structure and X509_AUX
7184 functions. An X509_AUX function such as PEM_read_X509_AUX()
7185 can still read in a certificate file in the usual way but it
7186 will also read in any additional "auxiliary information". By
7187 doing things this way a fair degree of compatibility can be
7188 retained: existing certificates can have this information added
7189 using the new 'x509' options.
7191 Current auxiliary information includes an "alias" and some trust
7192 settings. The trust settings will ultimately be used in enhanced
7193 certificate chain verification routines: currently a certificate
7194 can only be trusted if it is self signed and then it is trusted
7198 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7199 The problem was that one of the replacement routines had not been working
7200 since SSLeay releases. For now the offending routine has been replaced
7201 with non-optimised assembler. Even so, this now gives around 95%
7202 performance improvement for 1024 bit RSA signs.
7205 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7206 handling. Most clients have the effective key size in bits equal to
7207 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7208 A few however don't do this and instead use the size of the decrypted key
7209 to determine the RC2 key length and the AlgorithmIdentifier to determine
7210 the effective key length. In this case the effective key length can still
7211 be 40 bits but the key length can be 168 bits for example. This is fixed
7212 by manually forcing an RC2 key into the EVP_PKEY structure because the
7213 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7214 the key length and effective key length are equal.
7217 *) Add a bunch of functions that should simplify the creation of
7218 X509_NAME structures. Now you should be able to do:
7219 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7220 and have it automatically work out the correct field type and fill in
7221 the structures. The more adventurous can try:
7222 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7223 and it will (hopefully) work out the correct multibyte encoding.
7226 *) Change the 'req' utility to use the new field handling and multibyte
7227 copy routines. Before the DN field creation was handled in an ad hoc
7228 way in req, ca, and x509 which was rather broken and didn't support
7229 BMPStrings or UTF8Strings. Since some software doesn't implement
7230 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7231 using the dirstring_type option. See the new comment in the default
7232 openssl.cnf for more info.
7235 *) Make crypto/rand/md_rand.c more robust:
7236 - Assure unique random numbers after fork().
7237 - Make sure that concurrent threads access the global counter and
7238 md serializably so that we never lose entropy in them
7239 or use exactly the same state in multiple threads.
7240 Access to the large state is not always serializable because
7241 the additional locking could be a performance killer, and
7242 md should be large enough anyway.
7245 *) New file apps/app_rand.c with commonly needed functionality
7246 for handling the random seed file.
7248 Use the random seed file in some applications that previously did not:
7250 dsaparam -genkey (which also ignored its '-rand' option),
7253 x509 (when signing).
7254 Except on systems with /dev/urandom, it is crucial to have a random
7255 seed file at least for key creation, DSA signing, and for DH exchanges;
7256 for RSA signatures we could do without one.
7258 gendh and gendsa (unlike genrsa) used to read only the first byte
7259 of each file listed in the '-rand' option. The function as previously
7260 found in genrsa is now in app_rand.c and is used by all programs
7261 that support '-rand'.
7264 *) In RAND_write_file, use mode 0600 for creating files;
7265 don't just chmod when it may be too late.
7268 *) Report an error from X509_STORE_load_locations
7269 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7272 *) New function ASN1_mbstring_copy() this copies a string in either
7273 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7274 into an ASN1_STRING type. A mask of permissible types is passed
7275 and it chooses the "minimal" type to use or an error if not type
7279 *) Add function equivalents to the various macros in asn1.h. The old
7280 macros are retained with an M_ prefix. Code inside the library can
7281 use the M_ macros. External code (including the openssl utility)
7282 should *NOT* in order to be "shared library friendly".
7285 *) Add various functions that can check a certificate's extensions
7286 to see if it usable for various purposes such as SSL client,
7287 server or S/MIME and CAs of these types. This is currently
7288 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7289 verification. Also added a -purpose flag to x509 utility to
7290 print out all the purposes.
7293 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7297 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7298 for, obtain and decode and extension and obtain its critical flag.
7299 This allows all the necessary extension code to be handled in a
7300 single function call.
7303 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7304 platforms. See crypto/rc4/rc4_enc.c for further details.
7307 *) New -noout option to asn1parse. This causes no output to be produced
7308 its main use is when combined with -strparse and -out to extract data
7309 from a file (which may not be in ASN.1 format).
7312 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7313 when producing the local key id.
7314 [Richard Levitte <levitte@stacken.kth.se>]
7316 *) New option -dhparam in s_server. This allows a DH parameter file to be
7317 stated explicitly. If it is not stated then it tries the first server
7318 certificate file. The previous behaviour hard coded the filename
7322 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7323 a public key to be input or output. For example:
7324 openssl rsa -in key.pem -pubout -out pubkey.pem
7325 Also added necessary DSA public key functions to handle this.
7328 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7329 in the message. This was handled by allowing
7330 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7331 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7333 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7334 to the end of the strings whereas this didn't. This would cause problems
7335 if strings read with d2i_ASN1_bytes() were later modified.
7336 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7338 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7339 data and it contains EOF it will end up returning an error. This is
7340 caused by input 46 bytes long. The cause is due to the way base64
7341 BIOs find the start of base64 encoded data. They do this by trying a
7342 trial decode on each line until they find one that works. When they
7343 do a flag is set and it starts again knowing it can pass all the
7344 data directly through the decoder. Unfortunately it doesn't reset
7345 the context it uses. This means that if EOF is reached an attempt
7346 is made to pass two EOFs through the context and this causes the
7347 resulting error. This can also cause other problems as well. As is
7348 usual with these problems it takes *ages* to find and the fix is
7349 trivial: move one line.
7350 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7352 *) Ugly workaround to get s_client and s_server working under Windows. The
7353 old code wouldn't work because it needed to select() on sockets and the
7354 tty (for keypresses and to see if data could be written). Win32 only
7355 supports select() on sockets so we select() with a 1s timeout on the
7356 sockets and then see if any characters are waiting to be read, if none
7357 are present then we retry, we also assume we can always write data to
7358 the tty. This isn't nice because the code then blocks until we've
7359 received a complete line of data and it is effectively polling the
7360 keyboard at 1s intervals: however it's quite a bit better than not
7361 working at all :-) A dedicated Windows application might handle this
7362 with an event loop for example.
7365 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7366 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7367 will be called when RSA_sign() and RSA_verify() are used. This is useful
7368 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7369 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7370 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7371 This necessitated the support of an extra signature type NID_md5_sha1
7372 for SSL signatures and modifications to the SSL library to use it instead
7373 of calling RSA_public_decrypt() and RSA_private_encrypt().
7376 *) Add new -verify -CAfile and -CApath options to the crl program, these
7377 will lookup a CRL issuers certificate and verify the signature in a
7378 similar way to the verify program. Tidy up the crl program so it
7379 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7380 less strict. It will now permit CRL extensions even if it is not
7381 a V2 CRL: this will allow it to tolerate some broken CRLs.
7384 *) Initialize all non-automatic variables each time one of the openssl
7385 sub-programs is started (this is necessary as they may be started
7386 multiple times from the "OpenSSL>" prompt).
7387 [Lennart Bang, Bodo Moeller]
7389 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7390 removing all other RSA functionality (this is what NO_RSA does). This
7391 is so (for example) those in the US can disable those operations covered
7392 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7396 *) Non-copying interface to BIO pairs.
7397 (still largely untested)
7400 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7401 ASCII string. This was handled independently in various places before.
7404 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7405 UTF8 strings a character at a time.
7408 *) Use client_version from client hello to select the protocol
7409 (s23_srvr.c) and for RSA client key exchange verification
7410 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7413 *) Add various utility functions to handle SPKACs, these were previously
7414 handled by poking round in the structure internals. Added new function
7415 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7416 print, verify and generate SPKACs. Based on an original idea from
7417 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7420 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7423 *) Allow the config file extension section to be overwritten on the
7424 command line. Based on an original idea from Massimiliano Pala
7425 <madwolf@comune.modena.it>. The new option is called -extensions
7426 and can be applied to ca, req and x509. Also -reqexts to override
7427 the request extensions in req and -crlexts to override the crl extensions
7431 *) Add new feature to the SPKAC handling in ca. Now you can include
7432 the same field multiple times by preceding it by "XXXX." for example:
7435 this is the same syntax as used in the req config file.
7438 *) Allow certificate extensions to be added to certificate requests. These
7439 are specified in a 'req_extensions' option of the req section of the
7440 config file. They can be printed out with the -text option to req but
7441 are otherwise ignored at present.
7444 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7445 data read consists of only the final block it would not decrypted because
7446 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7447 A misplaced 'break' also meant the decrypted final block might not be
7448 copied until the next read.
7451 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7452 a few extra parameters to the DH structure: these will be useful if
7453 for example we want the value of 'q' or implement X9.42 DH.
7456 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7457 provides hooks that allow the default DSA functions or functions on a
7458 "per key" basis to be replaced. This allows hardware acceleration and
7459 hardware key storage to be handled without major modification to the
7460 library. Also added low level modexp hooks and CRYPTO_EX structure and
7461 associated functions.
7464 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7465 as "read only": it can't be written to and the buffer it points to will
7466 not be freed. Reading from a read only BIO is much more efficient than
7467 a normal memory BIO. This was added because there are several times when
7468 an area of memory needs to be read from a BIO. The previous method was
7469 to create a memory BIO and write the data to it, this results in two
7470 copies of the data and an O(n^2) reading algorithm. There is a new
7471 function BIO_new_mem_buf() which creates a read only memory BIO from
7472 an area of memory. Also modified the PKCS#7 routines to use read only
7476 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7477 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7478 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7479 but a retry condition occured while trying to read the rest.
7482 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7483 NID_pkcs7_encrypted by default: this was wrong since this should almost
7484 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7485 the encrypted data type: this is a more sensible place to put it and it
7486 allows the PKCS#12 code to be tidied up that duplicated this
7490 *) Changed obj_dat.pl script so it takes its input and output files on
7491 the command line. This should avoid shell escape redirection problems
7495 *) Initial support for certificate extension requests, these are included
7496 in things like Xenroll certificate requests. Included functions to allow
7497 extensions to be obtained and added.
7500 *) -crlf option to s_client and s_server for sending newlines as
7501 CRLF (as required by many protocols).
7504 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7506 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7507 [Ralf S. Engelschall]
7509 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7510 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7512 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7516 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7517 DH parameters/keys (q is lost during that conversion, but the resulting
7518 DH parameters contain its length).
7520 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7521 much faster than DH_generate_parameters (which creates parameters
7522 where p = 2*q + 1), and also the smaller q makes DH computations
7523 much more efficient (160-bit exponentiation instead of 1024-bit
7524 exponentiation); so this provides a convenient way to support DHE
7525 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7526 utter importance to use
7527 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7529 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7530 when such DH parameters are used, because otherwise small subgroup
7531 attacks may become possible!
7534 *) Avoid memory leak in i2d_DHparams.
7537 *) Allow the -k option to be used more than once in the enc program:
7538 this allows the same encrypted message to be read by multiple recipients.
7541 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7542 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7543 it will always use the numerical form of the OID, even if it has a short
7547 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7548 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7549 otherwise bn_mod_exp was called. In the case of hardware keys for example
7550 no private key components need be present and it might store extra data
7551 in the RSA structure, which cannot be accessed from bn_mod_exp.
7552 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7553 private key operations.
7556 *) Added support for SPARC Linux.
7559 *) pem_password_cb function type incompatibly changed from
7560 typedef int pem_password_cb(char *buf, int size, int rwflag);
7562 ....(char *buf, int size, int rwflag, void *userdata);
7563 so that applications can pass data to their callbacks:
7564 The PEM[_ASN1]_{read,write}... functions and macros now take an
7565 additional void * argument, which is just handed through whenever
7566 the password callback is called.
7567 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7569 New function SSL_CTX_set_default_passwd_cb_userdata.
7571 Compatibility note: As many C implementations push function arguments
7572 onto the stack in reverse order, the new library version is likely to
7573 interoperate with programs that have been compiled with the old
7574 pem_password_cb definition (PEM_whatever takes some data that
7575 happens to be on the stack as its last argument, and the callback
7576 just ignores this garbage); but there is no guarantee whatsoever that
7579 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7580 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7581 problems not only on Windows, but also on some Unix platforms.
7582 To avoid problematic command lines, these definitions are now in an
7583 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7584 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7587 *) MIPS III/IV assembler module is reimplemented.
7590 *) More DES library cleanups: remove references to srand/rand and
7591 delete an unused file.
7594 *) Add support for the the free Netwide assembler (NASM) under Win32,
7595 since not many people have MASM (ml) and it can be hard to obtain.
7596 This is currently experimental but it seems to work OK and pass all
7597 the tests. Check out INSTALL.W32 for info.
7600 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7601 without temporary keys kept an extra copy of the server key,
7602 and connections with temporary keys did not free everything in case
7606 *) New function RSA_check_key and new openssl rsa option -check
7607 for verifying the consistency of RSA keys.
7608 [Ulf Moeller, Bodo Moeller]
7610 *) Various changes to make Win32 compile work:
7611 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7612 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7613 comparison" warnings.
7614 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7617 *) Add a debugging option to PKCS#5 v2 key generation function: when
7618 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7619 derived keys are printed to stderr.
7622 *) Copy the flags in ASN1_STRING_dup().
7623 [Roman E. Pavlov <pre@mo.msk.ru>]
7625 *) The x509 application mishandled signing requests containing DSA
7626 keys when the signing key was also DSA and the parameters didn't match.
7628 It was supposed to omit the parameters when they matched the signing key:
7629 the verifying software was then supposed to automatically use the CA's
7630 parameters if they were absent from the end user certificate.
7632 Omitting parameters is no longer recommended. The test was also
7633 the wrong way round! This was probably due to unusual behaviour in
7634 EVP_cmp_parameters() which returns 1 if the parameters match.
7635 This meant that parameters were omitted when they *didn't* match and
7636 the certificate was useless. Certificates signed with 'ca' didn't have
7638 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7640 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7641 The interface is as follows:
7642 Applications can use
7643 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7644 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7645 "off" is now the default.
7646 The library internally uses
7647 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7648 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7649 to disable memory-checking temporarily.
7651 Some inconsistent states that previously were possible (and were
7652 even the default) are now avoided.
7654 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7655 with each memory chunk allocated; this is occasionally more helpful
7656 than just having a counter.
7658 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7660 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7664 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7665 which largely parallels "options", but is for changing API behaviour,
7666 whereas "options" are about protocol behaviour.
7667 Initial "mode" flags are:
7669 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7670 a single record has been written.
7671 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7672 retries use the same buffer location.
7673 (But all of the contents must be
7677 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7680 *) Fix problems with no-hmac etc.
7681 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7683 *) New functions RSA_get_default_method(), RSA_set_method() and
7684 RSA_get_method(). These allows replacement of RSA_METHODs without having
7685 to mess around with the internals of an RSA structure.
7688 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7689 Also really enable memory leak checks in openssl.c and in some
7691 [Chad C. Mulligan, Bodo Moeller]
7693 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7694 up the length of negative integers. This has now been simplified to just
7695 store the length when it is first determined and use it later, rather
7696 than trying to keep track of where data is copied and updating it to
7698 [Steve Henson, reported by Brien Wheeler
7699 <bwheeler@authentica-security.com>]
7701 *) Add a new function PKCS7_signatureVerify. This allows the verification
7702 of a PKCS#7 signature but with the signing certificate passed to the
7703 function itself. This contrasts with PKCS7_dataVerify which assumes the
7704 certificate is present in the PKCS#7 structure. This isn't always the
7705 case: certificates can be omitted from a PKCS#7 structure and be
7706 distributed by "out of band" means (such as a certificate database).
7709 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7710 function prototypes in pem.h, also change util/mkdef.pl to add the
7711 necessary function names.
7714 *) mk1mf.pl (used by Windows builds) did not properly read the
7715 options set by Configure in the top level Makefile, and Configure
7716 was not even able to write more than one option correctly.
7717 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7720 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7721 file to be loaded from a BIO or FILE pointer. The BIO version will
7722 for example allow memory BIOs to contain config info.
7725 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7726 Whoever hopes to achieve shared-library compatibility across versions
7727 must use this, not the compile-time macro.
7728 (Exercise 0.9.4: Which is the minimum library version required by
7730 Note: All this applies only to multi-threaded programs, others don't
7734 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7735 through a BIO pair triggered the default case, i.e.
7736 SSLerr(...,SSL_R_UNKNOWN_STATE).
7739 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7740 can use the SSL library even if none of the specific BIOs is
7744 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7745 for the encoded length.
7746 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7748 *) Add initial documentation of the X509V3 functions.
7751 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7752 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7753 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7754 secure PKCS#8 private key format with a high iteration count.
7757 *) Fix determination of Perl interpreter: A perl or perl5
7758 _directory_ in $PATH was also accepted as the interpreter.
7759 [Ralf S. Engelschall]
7761 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7762 wrong with it but it was very old and did things like calling
7763 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7767 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7768 to use the new extension code.
7771 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7772 with macros. This should make it easier to change their form, add extra
7773 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7777 *) Add to configuration table a new entry that can specify an alternative
7778 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7779 according to Mark Crispin <MRC@Panda.COM>.
7783 *) DES CBC did not update the IV. Weird.
7786 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7787 Changing the behaviour of the former might break existing programs --
7788 where IV updating is needed, des_ncbc_encrypt can be used.
7791 *) When bntest is run from "make test" it drives bc to check its
7792 calculations, as well as internally checking them. If an internal check
7793 fails, it needs to cause bc to give a non-zero result or make test carries
7794 on without noticing the failure. Fixed.
7797 *) DES library cleanups.
7800 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7801 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7802 ciphers. NOTE: although the key derivation function has been verified
7803 against some published test vectors it has not been extensively tested
7804 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7808 *) Instead of "mkdir -p", which is not fully portable, use new
7809 Perl script "util/mkdir-p.pl".
7812 *) Rewrite the way password based encryption (PBE) is handled. It used to
7813 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7814 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7815 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7816 the 'parameter' field of the AlgorithmIdentifier is passed to the
7817 underlying key generation function so it must do its own ASN1 parsing.
7818 This has also changed the EVP_PBE_CipherInit() function which now has a
7819 'parameter' argument instead of literal salt and iteration count values
7820 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7823 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7824 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7825 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7826 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7827 value was just used as a "magic string" and not used directly its
7828 value doesn't matter.
7831 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7835 *) "linux-sparc64" configuration (ultrapenguin).
7836 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7837 "linux-sparc" configuration.
7838 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7840 *) config now generates no-xxx options for missing ciphers.
7843 *) Support the EBCDIC character set (work in progress).
7844 File ebcdic.c not yet included because it has a different license.
7845 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7847 *) Support BS2000/OSD-POSIX.
7848 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7850 *) Make callbacks for key generation use void * instead of char *.
7853 *) Make S/MIME samples compile (not yet tested).
7856 *) Additional typesafe stacks.
7859 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7863 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7865 *) New configuration variant "sco5-gcc".
7867 *) Updated some demos.
7868 [Sean O Riordain, Wade Scholine]
7870 *) Add missing BIO_free at exit of pkcs12 application.
7873 *) Fix memory leak in conf.c.
7876 *) Updates for Win32 to assembler version of MD5.
7879 *) Set #! path to perl in apps/der_chop to where we found it
7880 instead of using a fixed path.
7883 *) SHA library changes for irix64-mips4-cc.
7886 *) Improvements for VMS support.
7890 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7892 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7893 This also avoids the problems with SC4.2 and unpatched SC5.
7894 [Andy Polyakov <appro@fy.chalmers.se>]
7896 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7897 These are required because of the typesafe stack would otherwise break
7898 existing code. If old code used a structure member which used to be STACK
7899 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7900 sk_num or sk_value it would produce an error because the num, data members
7901 are not present in STACK_OF. Now it just produces a warning. sk_set
7902 replaces the old method of assigning a value to sk_value
7903 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7904 that does this will no longer work (and should use sk_set instead) but
7905 this could be regarded as a "questionable" behaviour anyway.
7908 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7909 correctly handle encrypted S/MIME data.
7912 *) Change type of various DES function arguments from des_cblock
7913 (which means, in function argument declarations, pointer to char)
7914 to des_cblock * (meaning pointer to array with 8 char elements),
7915 which allows the compiler to do more typechecking; it was like
7916 that back in SSLeay, but with lots of ugly casts.
7918 Introduce new type const_des_cblock.
7921 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7922 problems: find RecipientInfo structure that matches recipient certificate
7923 and initialise the ASN1 structures properly based on passed cipher.
7926 *) Belatedly make the BN tests actually check the results.
7929 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7930 to and from BNs: it was completely broken. New compilation option
7931 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7932 key elements as negative integers.
7935 *) Reorganize and speed up MD5.
7936 [Andy Polyakov <appro@fy.chalmers.se>]
7939 [Richard Levitte <richard@levitte.org>]
7941 *) New option -out to asn1parse to allow the parsed structure to be
7942 output to a file. This is most useful when combined with the -strparse
7943 option to examine the output of things like OCTET STRINGS.
7946 *) Make SSL library a little more fool-proof by not requiring any longer
7947 that SSL_set_{accept,connect}_state be called before
7948 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7949 in many applications because usually everything *appeared* to work as
7950 intended anyway -- now it really works as intended).
7953 *) Move openssl.cnf out of lib/.
7956 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7957 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7958 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7959 [Ralf S. Engelschall]
7961 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7962 handle PKCS#7 enveloped data properly.
7963 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7965 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7966 copying pointers. The cert_st handling is changed by this in
7967 various ways (and thus what used to be known as ctx->default_cert
7968 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7969 any longer when s->cert does not give us what we need).
7970 ssl_cert_instantiate becomes obsolete by this change.
7971 As soon as we've got the new code right (possibly it already is?),
7972 we have solved a couple of bugs of the earlier code where s->cert
7973 was used as if it could not have been shared with other SSL structures.
7975 Note that using the SSL API in certain dirty ways now will result
7976 in different behaviour than observed with earlier library versions:
7977 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7978 does not influence s as it used to.
7980 In order to clean up things more thoroughly, inside SSL_SESSION
7981 we don't use CERT any longer, but a new structure SESS_CERT
7982 that holds per-session data (if available); currently, this is
7983 the peer's certificate chain and, for clients, the server's certificate
7984 and temporary key. CERT holds only those values that can have
7985 meaningful defaults in an SSL_CTX.
7988 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7989 from the internal representation. Various PKCS#7 fixes: remove some
7990 evil casts and set the enc_dig_alg field properly based on the signing
7994 *) Allow PKCS#12 password to be set from the command line or the
7995 environment. Let 'ca' get its config file name from the environment
7996 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8000 *) Allow certificate policies extension to use an IA5STRING for the
8001 organization field. This is contrary to the PKIX definition but
8002 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8006 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8007 without disallowing inline assembler and the like for non-pedantic builds.
8010 *) Support Borland C++ builder.
8011 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8016 *) SHA-1 cleanups and performance enhancements.
8017 [Andy Polyakov <appro@fy.chalmers.se>]
8019 *) Sparc v8plus assembler for the bignum library.
8020 [Andy Polyakov <appro@fy.chalmers.se>]
8022 *) Accept any -xxx and +xxx compiler options in Configure.
8025 *) Update HPUX configuration.
8028 *) Add missing sk_<type>_unshift() function to safestack.h
8029 [Ralf S. Engelschall]
8031 *) New function SSL_CTX_use_certificate_chain_file that sets the
8032 "extra_cert"s in addition to the certificate. (This makes sense
8033 only for "PEM" format files, as chains as a whole are not
8037 *) Support verify_depth from the SSL API.
8038 x509_vfy.c had what can be considered an off-by-one-error:
8039 Its depth (which was not part of the external interface)
8040 was actually counting the number of certificates in a chain;
8041 now it really counts the depth.
8044 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8045 instead of X509err, which often resulted in confusing error
8046 messages since the error codes are not globally unique
8047 (e.g. an alleged error in ssl3_accept when a certificate
8048 didn't match the private key).
8050 *) New function SSL_CTX_set_session_id_context that allows to set a default
8051 value (so that you don't need SSL_set_session_id_context for each
8052 connection using the SSL_CTX).
8055 *) OAEP decoding bug fix.
8058 *) Support INSTALL_PREFIX for package builders, as proposed by
8062 *) New Configure options "threads" and "no-threads". For systems
8063 where the proper compiler options are known (currently Solaris
8064 and Linux), "threads" is the default.
8067 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8070 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8071 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8072 such as /usr/local/bin.
8075 *) "make linux-shared" to build shared libraries.
8076 [Niels Poppe <niels@netbox.org>]
8078 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8081 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8082 extension adding in x509 utility.
8085 *) Remove NOPROTO sections and error code comments.
8088 *) Partial rewrite of the DEF file generator to now parse the ANSI
8092 *) New Configure options --prefix=DIR and --openssldir=DIR.
8095 *) Complete rewrite of the error code script(s). It is all now handled
8096 by one script at the top level which handles error code gathering,
8097 header rewriting and C source file generation. It should be much better
8098 than the old method: it now uses a modified version of Ulf's parser to
8099 read the ANSI prototypes in all header files (thus the old K&R definitions
8100 aren't needed for error creation any more) and do a better job of
8101 translating function codes into names. The old 'ASN1 error code imbedded
8102 in a comment' is no longer necessary and it doesn't use .err files which
8103 have now been deleted. Also the error code call doesn't have to appear all
8104 on one line (which resulted in some large lines...).
8107 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8110 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8111 0 (which usually indicates a closed connection), but continue reading.
8114 *) Fix some race conditions.
8117 *) Add support for CRL distribution points extension. Add Certificate
8118 Policies and CRL distribution points documentation.
8121 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8124 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8125 8 of keying material. Merlin has also confirmed interop with this fix
8126 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8127 [Merlin Hughes <merlin@baltimore.ie>]
8129 *) Fix lots of warnings.
8130 [Richard Levitte <levitte@stacken.kth.se>]
8132 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8133 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8134 [Richard Levitte <levitte@stacken.kth.se>]
8136 *) Fix problems with sizeof(long) == 8.
8137 [Andy Polyakov <appro@fy.chalmers.se>]
8139 *) Change functions to ANSI C.
8142 *) Fix typos in error codes.
8143 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8145 *) Remove defunct assembler files from Configure.
8148 *) SPARC v8 assembler BIGNUM implementation.
8149 [Andy Polyakov <appro@fy.chalmers.se>]
8151 *) Support for Certificate Policies extension: both print and set.
8152 Various additions to support the r2i method this uses.
8155 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8156 return a const string when you are expecting an allocated buffer.
8159 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8160 types DirectoryString and DisplayText.
8163 *) Add code to allow r2i extensions to access the configuration database,
8164 add an LHASH database driver and add several ctx helper functions.
8167 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8168 fail when they extended the size of a BIGNUM.
8171 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8172 support typesafe stack.
8175 *) Fix typo in SSL_[gs]et_options().
8176 [Nils Frostberg <nils@medcom.se>]
8178 *) Delete various functions and files that belonged to the (now obsolete)
8179 old X509V3 handling code.
8182 *) New Configure option "rsaref".
8185 *) Don't auto-generate pem.h.
8188 *) Introduce type-safe ASN.1 SETs.
8191 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8192 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8194 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8195 that links with OpenSSL (well at least cause lots of warnings), but fear
8196 not: the conversion is trivial, and it eliminates loads of evil casts. A
8197 few STACKed things have been converted already. Feel free to convert more.
8198 In the fullness of time, I'll do away with the STACK type altogether.
8201 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8202 specified in <certfile> by updating the entry in the index.txt file.
8203 This way one no longer has to edit the index.txt file manually for
8204 revoking a certificate. The -revoke option does the gory details now.
8205 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8207 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8208 `-text' option at all and this way the `-noout -text' combination was
8209 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8210 [Ralf S. Engelschall]
8212 *) Make sure a corresponding plain text error message exists for the
8213 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8214 verify callback function determined that a certificate was revoked.
8215 [Ralf S. Engelschall]
8217 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8218 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8219 all available cipers including rc5, which was forgotten until now.
8220 In order to let the testing shell script know which algorithms
8221 are available, a new (up to now undocumented) command
8222 "openssl list-cipher-commands" is used.
8225 *) Bugfix: s_client occasionally would sleep in select() when
8226 it should have checked SSL_pending() first.
8229 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8230 the raw DSA values prior to ASN.1 encoding.
8233 *) Tweaks to Configure
8234 [Niels Poppe <niels@netbox.org>]
8236 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8240 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8243 *) New config option to avoid instructions that are illegal on the 80386.
8244 The default code is faster, but requires at least a 486.
8247 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8248 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8249 same as SSL2_VERSION anyway.
8252 *) New "-showcerts" option for s_client.
8255 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8256 application. Various cleanups and fixes.
8259 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8260 modify error routines to work internally. Add error codes and PBE init
8261 to library startup routines.
8264 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8265 packing functions to asn1 and evp. Changed function names and error
8266 codes along the way.
8269 *) PKCS12 integration: and so it begins... First of several patches to
8270 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8271 objects to objects.h
8274 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8275 and display support for Thawte strong extranet extension.
8278 *) Add LinuxPPC support.
8279 [Jeff Dubrule <igor@pobox.org>]
8281 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8282 bn_div_words in alpha.s.
8283 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8285 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8286 OAEP isn't supported when OpenSSL is built with RSAref.
8287 [Ulf Moeller <ulf@fitug.de>]
8289 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8290 so they no longer are missing under -DNOPROTO.
8291 [Soren S. Jorvang <soren@t.dk>]
8294 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8296 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8297 doesn't work when the session is reused. Coming soon!
8300 *) Fix a security hole, that allows sessions to be reused in the wrong
8301 context thus bypassing client cert protection! All software that uses
8302 client certs and session caches in multiple contexts NEEDS PATCHING to
8303 allow session reuse! A fuller solution is in the works.
8304 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8306 *) Some more source tree cleanups (removed obsolete files
8307 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8308 permission on "config" script to be executable) and a fix for the INSTALL
8310 [Ulf Moeller <ulf@fitug.de>]
8312 *) Remove some legacy and erroneous uses of malloc, free instead of
8314 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8316 *) Make rsa_oaep_test return non-zero on error.
8317 [Ulf Moeller <ulf@fitug.de>]
8319 *) Add support for native Solaris shared libraries. Configure
8320 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8321 if someone would make that last step automatic.
8322 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8324 *) ctx_size was not built with the right compiler during "make links". Fixed.
8327 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8328 except NULL ciphers". This means the default cipher list will no longer
8329 enable NULL ciphers. They need to be specifically enabled e.g. with
8330 the string "DEFAULT:eNULL".
8333 *) Fix to RSA private encryption routines: if p < q then it would
8334 occasionally produce an invalid result. This will only happen with
8335 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8338 *) Be less restrictive and allow also `perl util/perlpath.pl
8339 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8340 because this way one can also use an interpreter named `perl5' (which is
8341 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8342 installed as `perl').
8343 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8345 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8346 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8348 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8349 advapi32.lib to Win32 build and change the pem test comparision
8350 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8351 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8352 and crypto/des/ede_cbcm_enc.c.
8355 *) DES quad checksum was broken on big-endian architectures. Fixed.
8358 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8359 Win32 test batch file so it (might) work again. The Win32 test batch file
8360 is horrible: I feel ill....
8363 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8364 in e_os.h. Audit of header files to check ANSI and non ANSI
8365 sections: 10 functions were absent from non ANSI section and not exported
8366 from Windows DLLs. Fixed up libeay.num for new functions.
8369 *) Make `openssl version' output lines consistent.
8370 [Ralf S. Engelschall]
8372 *) Fix Win32 symbol export lists for BIO functions: Added
8373 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8374 to ms/libeay{16,32}.def.
8375 [Ralf S. Engelschall]
8377 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8378 fine under Unix and passes some trivial tests I've now added. But the
8379 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8380 added to make sure no one expects that this stuff really works in the
8381 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8382 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8384 [Ralf S. Engelschall]
8386 *) Fix the generation of two part addresses in perl.
8387 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8389 *) Add config entry for Linux on MIPS.
8390 [John Tobey <jtobey@channel1.com>]
8392 *) Make links whenever Configure is run, unless we are on Windoze.
8395 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8396 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8400 *) Add a useful kludge to allow package maintainers to specify compiler and
8401 other platforms details on the command line without having to patch the
8402 Configure script everytime: One now can use ``perl Configure
8403 <id>:<details>'', i.e. platform ids are allowed to have details appended
8404 to them (seperated by colons). This is treated as there would be a static
8405 pre-configured entry in Configure's %table under key <id> with value
8406 <details> and ``perl Configure <id>'' is called. So, when you want to
8407 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8408 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8409 now, which overrides the FreeBSD-elf entry on-the-fly.
8410 [Ralf S. Engelschall]
8412 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8415 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8416 on the `perl Configure ...' command line. This way one can compile
8417 OpenSSL libraries with Position Independent Code (PIC) which is needed
8418 for linking it into DSOs.
8419 [Ralf S. Engelschall]
8421 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8425 *) Cleaned up the LICENSE document: The official contact for any license
8426 questions now is the OpenSSL core team under openssl-core@openssl.org.
8427 And add a paragraph about the dual-license situation to make sure people
8428 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8429 to the OpenSSL toolkit.
8430 [Ralf S. Engelschall]
8432 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8433 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8434 Additonally cleaned up the `make links' target: Remove unnecessary
8435 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8436 to speed processing and no longer clutter the display with confusing
8437 stuff. Instead only the actually done links are displayed.
8438 [Ralf S. Engelschall]
8440 *) Permit null encryption ciphersuites, used for authentication only. It used
8441 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8442 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8446 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8447 signed attributes when verifying signatures (this would break them),
8448 the detached data encoding was wrong and public keys obtained using
8449 X509_get_pubkey() weren't freed.
8452 *) Add text documentation for the BUFFER functions. Also added a work around
8453 to a Win95 console bug. This was triggered by the password read stuff: the
8454 last character typed gets carried over to the next fread(). If you were
8455 generating a new cert request using 'req' for example then the last
8456 character of the passphrase would be CR which would then enter the first
8460 *) Added the new `Includes OpenSSL Cryptography Software' button as
8461 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8462 button and can be used by applications based on OpenSSL to show the
8463 relationship to the OpenSSL project.
8464 [Ralf S. Engelschall]
8466 *) Remove confusing variables in function signatures in files
8467 ssl/ssl_lib.c and ssl/ssl.h.
8468 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8470 *) Don't install bss_file.c under PREFIX/include/
8471 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8473 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8474 functions that return function pointers and has support for NT specific
8475 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8476 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8477 unsigned to signed types: this was killing the Win32 compile.
8480 *) Add new certificate file to stack functions,
8481 SSL_add_dir_cert_subjects_to_stack() and
8482 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8483 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8484 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8485 This means that Apache-SSL and similar packages don't have to mess around
8486 to add as many CAs as they want to the preferred list.
8489 *) Experiment with doxygen documentation. Currently only partially applied to
8491 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8492 openssl.doxy as the configuration file.
8495 *) Get rid of remaining C++-style comments which strict C compilers hate.
8496 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8498 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8499 compiled in by default: it has problems with large keys.
8502 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8503 DH private keys and/or callback functions which directly correspond to
8504 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8505 is needed for applications which have to configure certificates on a
8506 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8508 For the RSA certificate situation is makes no difference, but
8509 for the DSA certificate situation this fixes the "no shared cipher"
8510 problem where the OpenSSL cipher selection procedure failed because the
8511 temporary keys were not overtaken from the context and the API provided
8512 no way to reconfigure them.
8513 The new functions now let applications reconfigure the stuff and they
8514 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8515 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8516 non-public-API function ssl_cert_instantiate() is used as a helper
8517 function and also to reduce code redundancy inside ssl_rsa.c.
8518 [Ralf S. Engelschall]
8520 *) Move s_server -dcert and -dkey options out of the undocumented feature
8521 area because they are useful for the DSA situation and should be
8522 recognized by the users.
8523 [Ralf S. Engelschall]
8525 *) Fix the cipher decision scheme for export ciphers: the export bits are
8526 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8527 SSL_EXP_MASK. So, the original variable has to be used instead of the
8528 already masked variable.
8529 [Richard Levitte <levitte@stacken.kth.se>]
8531 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8532 [Richard Levitte <levitte@stacken.kth.se>]
8534 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8535 from `int' to `unsigned int' because it's a length and initialized by
8536 EVP_DigestFinal() which expects an `unsigned int *'.
8537 [Richard Levitte <levitte@stacken.kth.se>]
8539 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8540 script. Instead use the usual Shell->Perl transition trick.
8541 [Ralf S. Engelschall]
8543 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8544 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8545 -noout -modulus' as it's already the case for `openssl rsa -noout
8546 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8547 currently the public key is printed (a decision which was already done by
8548 `openssl dsa -modulus' in the past) which serves a similar purpose.
8549 Additionally the NO_RSA no longer completely removes the whole -modulus
8550 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8552 [Ralf S. Engelschall]
8554 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8555 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8556 [Arne Ansper <arne@ats.cyber.ee>]
8558 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8559 to be added. Now both 'req' and 'ca' can use new objects defined in the
8563 *) Add cool BIO that does syslog (or event log on NT).
8564 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8566 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8567 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8568 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8569 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8572 *) Add preliminary config info for new extension code.
8575 *) Make RSA_NO_PADDING really use no padding.
8576 [Ulf Moeller <ulf@fitug.de>]
8578 *) Generate errors when private/public key check is done.
8581 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8582 for some CRL extensions and new objects added.
8585 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8586 key usage extension and fuller support for authority key id.
8589 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8590 padding method for RSA, which is recommended for new applications in PKCS
8591 #1 v2.0 (RFC 2437, October 1998).
8592 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8593 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8594 against Bleichbacher's attack on RSA.
8595 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8598 *) Updates to the new SSL compression code
8599 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8601 *) Fix so that the version number in the master secret, when passed
8602 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8603 (because the server will not accept higher), that the version number
8604 is 0x03,0x01, not 0x03,0x00
8605 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8607 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8608 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8609 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8612 *) Support for RAW extensions where an arbitrary extension can be
8613 created by including its DER encoding. See apps/openssl.cnf for
8617 *) Make sure latest Perl versions don't interpret some generated C array
8618 code as Perl array code in the crypto/err/err_genc.pl script.
8619 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8621 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8622 not many people have the assembler. Various Win32 compilation fixes and
8623 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8627 *) Modify configure script 'Configure' to automatically create crypto/date.h
8628 file under Win32 and also build pem.h from pem.org. New script
8629 util/mkfiles.pl to create the MINFO file on environments that can't do a
8630 'make files': perl util/mkfiles.pl >MINFO should work.
8633 *) Major rework of DES function declarations, in the pursuit of correctness
8634 and purity. As a result, many evil casts evaporated, and some weirdness,
8635 too. You may find this causes warnings in your code. Zapping your evil
8636 casts will probably fix them. Mostly.
8639 *) Fix for a typo in asn1.h. Bug fix to object creation script
8640 obj_dat.pl. It considered a zero in an object definition to mean
8641 "end of object": none of the objects in objects.h have any zeros
8642 so it wasn't spotted.
8643 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8645 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8646 Masking (CBCM). In the absence of test vectors, the best I have been able
8647 to do is check that the decrypt undoes the encrypt, so far. Send me test
8648 vectors if you have them.
8651 *) Correct calculation of key length for export ciphers (too much space was
8652 allocated for null ciphers). This has not been tested!
8655 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8656 message is now correct (it understands "crypto" and "ssl" on its
8657 command line). There is also now an "update" option. This will update
8658 the util/ssleay.num and util/libeay.num files with any new functions.
8660 perl util/mkdef.pl crypto ssl update
8661 it will update them.
8664 *) Overhauled the Perl interface (perl/*):
8665 - ported BN stuff to OpenSSL's different BN library
8666 - made the perl/ source tree CVS-aware
8667 - renamed the package from SSLeay to OpenSSL (the files still contain
8668 their history because I've copied them in the repository)
8669 - removed obsolete files (the test scripts will be replaced
8670 by better Test::Harness variants in the future)
8671 [Ralf S. Engelschall]
8673 *) First cut for a very conservative source tree cleanup:
8674 1. merge various obsolete readme texts into doc/ssleay.txt
8675 where we collect the old documents and readme texts.
8676 2. remove the first part of files where I'm already sure that we no
8677 longer need them because of three reasons: either they are just temporary
8678 files which were left by Eric or they are preserved original files where
8679 I've verified that the diff is also available in the CVS via "cvs diff
8680 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8681 the crypto/md/ stuff).
8682 [Ralf S. Engelschall]
8684 *) More extension code. Incomplete support for subject and issuer alt
8685 name, issuer and authority key id. Change the i2v function parameters
8686 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8687 what that's for :-) Fix to ASN1 macro which messed up
8688 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8691 *) Preliminary support for ENUMERATED type. This is largely copied from the
8695 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8696 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8698 *) Make sure `make rehash' target really finds the `openssl' program.
8699 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8701 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8702 like to hear about it if this slows down other processors.
8705 *) Add CygWin32 platform information to Configure script.
8706 [Alan Batie <batie@aahz.jf.intel.com>]
8708 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8709 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8711 *) New program nseq to manipulate netscape certificate sequences
8714 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8718 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8719 but the BN code had some problems that would cause failures when
8720 doing certificate verification and some other functions.
8721 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8723 *) Add ASN1 and PEM code to support netscape certificate sequences.
8726 *) Add ASN1 and PEM code to support netscape certificate sequences.
8729 *) Add several PKIX and private extended key usage OIDs.
8732 *) Modify the 'ca' program to handle the new extension code. Modify
8733 openssl.cnf for new extension format, add comments.
8736 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8737 and add a sample to openssl.cnf so req -x509 now adds appropriate
8741 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8742 error code, add initial support to X509_print() and x509 application.
8745 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8746 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8747 stuff is currently isolated and isn't even compiled yet.
8750 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8751 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8752 Removed the versions check from X509 routines when loading extensions:
8753 this allows certain broken certificates that don't set the version
8754 properly to be processed.
8757 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8758 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8759 can still be regenerated with "make depend".
8762 *) Spelling mistake in C version of CAST-128.
8763 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8765 *) Changes to the error generation code. The perl script err-code.pl
8766 now reads in the old error codes and retains the old numbers, only
8767 adding new ones if necessary. It also only changes the .err files if new
8768 codes are added. The makefiles have been modified to only insert errors
8769 when needed (to avoid needlessly modifying header files). This is done
8770 by only inserting errors if the .err file is newer than the auto generated
8771 C file. To rebuild all the error codes from scratch (the old behaviour)
8772 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8773 or delete all the .err files.
8776 *) CAST-128 was incorrectly implemented for short keys. The C version has
8777 been fixed, but is untested. The assembler versions are also fixed, but
8778 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8779 to regenerate it if needed.
8780 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8781 Hagino <itojun@kame.net>]
8783 *) File was opened incorrectly in randfile.c.
8784 [Ulf Möller <ulf@fitug.de>]
8786 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8787 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8788 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8789 al: it's just almost always a UTCTime. Note this patch adds new error
8790 codes so do a "make errors" if there are problems.
8793 *) Correct Linux 1 recognition in config.
8794 [Ulf Möller <ulf@fitug.de>]
8796 *) Remove pointless MD5 hash when using DSA keys in ca.
8797 [Anonymous <nobody@replay.com>]
8799 *) Generate an error if given an empty string as a cert directory. Also
8800 generate an error if handed NULL (previously returned 0 to indicate an
8801 error, but didn't set one).
8802 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8804 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8807 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8808 parameters. This was causing a warning which killed off the Win32 compile.
8811 *) Remove C++ style comments from crypto/bn/bn_local.h.
8812 [Neil Costigan <neil.costigan@celocom.com>]
8814 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8815 based on a text string, looking up short and long names and finally
8816 "dot" format. The "dot" format stuff didn't work. Added new function
8817 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8818 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8819 OID is not part of the table.
8822 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8823 X509_LOOKUP_by_alias().
8826 *) Sort openssl functions by name.
8829 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8830 encryption from sample DSA keys (in case anyone is interested the password
8834 *) Make _all_ *_free functions accept a NULL pointer.
8835 [Frans Heymans <fheymans@isaserver.be>]
8837 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8839 [Anonymous <nobody@replay.com>]
8841 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8842 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8844 *) Don't blow it for numeric -newkey arguments to apps/req.
8845 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8847 *) Temp key "for export" tests were wrong in s3_srvr.c.
8848 [Anonymous <nobody@replay.com>]
8850 *) Add prototype for temp key callback functions
8851 SSL_CTX_set_tmp_{rsa,dh}_callback().
8854 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8855 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8858 *) X509_name_add_entry() freed the wrong thing after an error.
8859 [Arne Ansper <arne@ats.cyber.ee>]
8861 *) rsa_eay.c would attempt to free a NULL context.
8862 [Arne Ansper <arne@ats.cyber.ee>]
8864 *) BIO_s_socket() had a broken should_retry() on Windoze.
8865 [Arne Ansper <arne@ats.cyber.ee>]
8867 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8868 [Arne Ansper <arne@ats.cyber.ee>]
8870 *) Make sure the already existing X509_STORE->depth variable is initialized
8871 in X509_STORE_new(), but document the fact that this variable is still
8872 unused in the certificate verification process.
8873 [Ralf S. Engelschall]
8875 *) Fix the various library and apps files to free up pkeys obtained from
8876 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8879 *) Fix reference counting in X509_PUBKEY_get(). This makes
8880 demos/maurice/example2.c work, amongst others, probably.
8881 [Steve Henson and Ben Laurie]
8883 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8884 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8885 are no longer created. This way we have a single and consistent command
8886 line interface `openssl <command>', similar to `cvs <command>'.
8887 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8889 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8890 BIT STRING wrapper always have zero unused bits.
8893 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8896 *) Make the top-level INSTALL documentation easier to understand.
8899 *) Makefiles updated to exit if an error occurs in a sub-directory
8900 make (including if user presses ^C) [Paul Sutton]
8902 *) Make Montgomery context stuff explicit in RSA data structure.
8905 *) Fix build order of pem and err to allow for generated pem.h.
8908 *) Fix renumbering bug in X509_NAME_delete_entry().
8911 *) Enhanced the err-ins.pl script so it makes the error library number
8912 global and can add a library name. This is needed for external ASN1 and
8913 other error libraries.
8916 *) Fixed sk_insert which never worked properly.
8919 *) Fix ASN1 macros so they can handle indefinite length construted
8920 EXPLICIT tags. Some non standard certificates use these: they can now
8924 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8925 into a single doc/ssleay.txt bundle. This way the information is still
8926 preserved but no longer messes up this directory. Now it's new room for
8927 the new set of documenation files.
8928 [Ralf S. Engelschall]
8930 *) SETs were incorrectly DER encoded. This was a major pain, because they
8931 shared code with SEQUENCEs, which aren't coded the same. This means that
8932 almost everything to do with SETs or SEQUENCEs has either changed name or
8933 number of arguments.
8934 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8936 *) Fix test data to work with the above.
8939 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8940 was already fixed by Eric for 0.9.1 it seems.
8941 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8943 *) Autodetect FreeBSD3.
8946 *) Fix various bugs in Configure. This affects the following platforms:
8950 unixware-2.0-pentium
8954 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8955 before they are needed.
8958 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8962 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8964 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8965 changed SSLeay to OpenSSL in version strings.
8966 [Ralf S. Engelschall]
8968 *) Some fixups to the top-level documents.
8971 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8972 because the symlink to include/ was missing.
8973 [Ralf S. Engelschall]
8975 *) Incorporated the popular no-RSA/DSA-only patches
8976 which allow to compile a RSA-free SSLeay.
8977 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8979 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8980 when "ssleay" is still not found.
8981 [Ralf S. Engelschall]
8983 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8984 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8986 *) Updated the README file.
8987 [Ralf S. Engelschall]
8989 *) Added various .cvsignore files in the CVS repository subdirs
8990 to make a "cvs update" really silent.
8991 [Ralf S. Engelschall]
8993 *) Recompiled the error-definition header files and added
8994 missing symbols to the Win32 linker tables.
8995 [Ralf S. Engelschall]
8997 *) Cleaned up the top-level documents;
8998 o new files: CHANGES and LICENSE
8999 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9000 o merged COPYRIGHT into LICENSE
9001 o removed obsolete TODO file
9002 o renamed MICROSOFT to INSTALL.W32
9003 [Ralf S. Engelschall]
9005 *) Removed dummy files from the 0.9.1b source tree:
9006 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9007 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9008 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9009 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9010 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9011 [Ralf S. Engelschall]
9013 *) Added various platform portability fixes.
9016 *) The Genesis of the OpenSSL rpject:
9017 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9018 Young and Tim J. Hudson created while they were working for C2Net until
9020 [The OpenSSL Project]
9023 Changes between 0.9.0b and 0.9.1b [not released]
9025 *) Updated a few CA certificates under certs/
9028 *) Changed some BIGNUM api stuff.
9031 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9032 DGUX x86, Linux Alpha, etc.
9035 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9036 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9040 *) Add -strparse option to asn1pars program which parses nested
9042 [Dr Stephen Henson <shenson@bigfoot.com>]
9044 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9047 *) DSA fix for "ca" program.
9050 *) Added "-genkey" option to "dsaparam" program.
9053 *) Added RIPE MD160 (rmd160) message digest.
9056 *) Added -a (all) option to "ssleay version" command.
9059 *) Added PLATFORM define which is the id given to Configure.
9062 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9065 *) Extended the ASN.1 parser routines.
9068 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9071 *) Added a BN_CTX to the BN library.
9074 *) Fixed the weak key values in DES library
9077 *) Changed API in EVP library for cipher aliases.
9080 *) Added support for RC2/64bit cipher.
9083 *) Converted the lhash library to the crypto/mem.c functions.
9086 *) Added more recognized ASN.1 object ids.
9089 *) Added more RSA padding checks for SSL/TLS.
9092 *) Added BIO proxy/filter functionality.
9095 *) Added extra_certs to SSL_CTX which can be used
9096 send extra CA certificates to the client in the CA cert chain sending
9097 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9100 *) Now Fortezza is denied in the authentication phase because
9101 this is key exchange mechanism is not supported by SSLeay at all.
9104 *) Additional PKCS1 checks.
9107 *) Support the string "TLSv1" for all TLS v1 ciphers.
9110 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9111 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9114 *) Fixed a few memory leaks.
9117 *) Fixed various code and comment typos.
9120 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9121 bytes sent in the client random.
9122 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob