5 Changes between 0.9.8j and 0.9.9 [xx XXX xxxx]
7 *) Enhance the hash format used for certificate directory links. The new
8 form uses the canonical encoding (meaning equivalent names will work
9 even if they aren't identical) and uses SHA1 instead of MD5. This form
10 is incompatible with the older format and as a result c_rehash should
11 be used to rebuild symbolic links.
14 *) Make PKCS#8 the default write format for private keys, replacing the
15 traditional format. This form is standardised, more secure and doesn't
16 include an implicit MD5 dependency.
19 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
20 committed to OpenSSL should pass this lot as a minimum.
23 *) Add session ticket override functionality for use by EAP-FAST.
24 [Jouni Malinen <j@w1.fi>]
26 *) Modify HMAC functions to return a value. Since these can be implemented
27 in an ENGINE errors can occur.
30 *) Type-checked OBJ_bsearch_ex.
33 *) Type-checked OBJ_bsearch. Also some constification necessitated
34 by type-checking. Still to come: TXT_DB, bsearch(?),
35 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
39 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
40 seconds to a tm structure directly, instead of going through OS
41 specific date routines. This avoids any issues with OS routines such
42 as the year 2038 bug. New *_adj() functions for ASN1 time structures
43 and X509_time_adj_ex() to cover the extended range. The existing
44 X509_time_adj() is still usable and will no longer have any date issues.
47 *) Delta CRL support. New use deltas option which will attempt to locate
48 and search any appropriate delta CRLs available.
50 This work was sponsored by Google.
53 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
54 code and add additional score elements. Validate alternate CRL paths
55 as part of the CRL checking and indicate a new error "CRL path validation
56 error" in this case. Applications wanting additional details can use
57 the verify callback and check the new "parent" field. If this is not
58 NULL CRL path validation is taking place. Existing applications wont
59 see this because it requires extended CRL support which is off by
62 This work was sponsored by Google.
65 *) Support for freshest CRL extension.
67 This work was sponsored by Google.
70 *) Initial indirect CRL support. Currently only supported in the CRLs
71 passed directly and not via lookup. Process certificate issuer
72 CRL entry extension and lookup CRL entries by bother issuer name
73 and serial number. Check and process CRL issuer entry in IDP extension.
75 This work was sponsored by Google.
78 *) Add support for distinct certificate and CRL paths. The CRL issuer
79 certificate is validated separately in this case. Only enabled if
80 an extended CRL support flag is set: this flag will enable additional
81 CRL functionality in future.
83 This work was sponsored by Google.
86 *) Add support for policy mappings extension.
88 This work was sponsored by Google.
91 *) Fixes to pathlength constraint, self issued certificate handling,
92 policy processing to align with RFC3280 and PKITS tests.
94 This work was sponsored by Google.
97 *) Support for name constraints certificate extension. DN, email, DNS
98 and URI types are currently supported.
100 This work was sponsored by Google.
103 *) To cater for systems that provide a pointer-based thread ID rather
104 than numeric, deprecate the current numeric thread ID mechanism and
105 replace it with a structure and associated callback type. This
106 mechanism allows a numeric "hash" to be extracted from a thread ID in
107 either case, and on platforms where pointers are larger than 'long',
108 mixing is done to help ensure the numeric 'hash' is usable even if it
109 can't be guaranteed unique. The default mechanism is to use "&errno"
110 as a pointer-based thread ID to distinguish between threads.
112 Applications that want to provide their own thread IDs should now use
113 CRYPTO_THREADID_set_callback() to register a callback that will call
114 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
116 Note that ERR_remove_state() is now deprecated, because it is tied
117 to the assumption that thread IDs are numeric. ERR_remove_state(0)
118 to free the current thread's error state should be replaced by
119 ERR_remove_thread_state(NULL).
121 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
122 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
123 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
124 application was previously providing a numeric thread callback that
125 was inappropriate for distinguishing threads, then uniqueness might
126 have been obtained with &errno that happened immediately in the
127 intermediate development versions of OpenSSL; this is no longer the
128 case, the numeric thread callback will now override the automatic use
130 [Geoff Thorpe, with help from Bodo Moeller]
132 *) Initial support for different CRL issuing certificates. This covers a
133 simple case where the self issued certificates in the chain exist and
134 the real CRL issuer is higher in the existing chain.
136 This work was sponsored by Google.
139 *) Removed effectively defunct crypto/store from the build.
142 *) Revamp of STACK to provide stronger type-checking. Still to come:
143 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
144 ASN1_STRING, CONF_VALUE.
147 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
148 RAM on SSL connections. This option can save about 34k per idle SSL.
151 *) Revamp of LHASH to provide stronger type-checking. Still to come:
152 STACK, TXT_DB, bsearch, qsort.
155 *) Initial support for Cryptographic Message Syntax (aka CMS) based
156 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
157 support for data, signedData, compressedData, digestedData and
158 encryptedData, envelopedData types included. Scripts to check against
159 RFC4134 examples draft and interop and consistency checks of many
160 content types and variants.
163 *) Add options to enc utility to support use of zlib compression BIO.
166 *) Extend mk1mf to support importing of options and assembly language
167 files from Configure script, currently only included in VC-WIN32.
168 The assembly language rules can now optionally generate the source
169 files from the associated perl scripts.
172 *) Implement remaining functionality needed to support GOST ciphersuites.
173 Interop testing has been performed using CryptoPro implementations.
174 [Victor B. Wagner <vitus@cryptocom.ru>]
176 *) s390x assembler pack.
179 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
183 *) Implement Opaque PRF Input TLS extension as specified in
184 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
185 official specification yet and no extension type assignment by
186 IANA exists, this extension (for now) will have to be explicitly
187 enabled when building OpenSSL by providing the extension number
188 to use. For example, specify an option
190 -DTLSEXT_TYPE_opaque_prf_input=0x9527
192 to the "config" or "Configure" script to enable the extension,
193 assuming extension number 0x9527 (which is a completely arbitrary
194 and unofficial assignment based on the MD5 hash of the Internet
195 Draft). Note that by doing so, you potentially lose
196 interoperability with other TLS implementations since these might
197 be using the same extension number for other purposes.
199 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
200 opaque PRF input value to use in the handshake. This will create
201 an interal copy of the length-'len' string at 'src', and will
202 return non-zero for success.
204 To get more control and flexibility, provide a callback function
207 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
208 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
212 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
215 Callback function 'cb' will be called in handshakes, and is
216 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
217 Argument 'arg' is for application purposes (the value as given to
218 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
219 be provided to the callback function). The callback function
220 has to return non-zero to report success: usually 1 to use opaque
221 PRF input just if possible, or 2 to enforce use of the opaque PRF
222 input. In the latter case, the library will abort the handshake
223 if opaque PRF input is not successfully negotiated.
225 Arguments 'peerinput' and 'len' given to the callback function
226 will always be NULL and 0 in the case of a client. A server will
227 see the client's opaque PRF input through these variables if
228 available (NULL and 0 otherwise). Note that if the server
229 provides an opaque PRF input, the length must be the same as the
230 length of the client's opaque PRF input.
232 Note that the callback function will only be called when creating
233 a new session (session resumption can resume whatever was
234 previously negotiated), and will not be called in SSL 2.0
235 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
236 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
237 for applications that need to enforce opaque PRF input.
241 *) Update ssl code to support digests other than SHA1+MD5 for handshake
244 [Victor B. Wagner <vitus@cryptocom.ru>]
246 *) Add RFC4507 support to OpenSSL. This includes the corrections in
247 RFC4507bis. The encrypted ticket format is an encrypted encoded
248 SSL_SESSION structure, that way new session features are automatically
251 If a client application caches session in an SSL_SESSION structure
252 support is transparent because tickets are now stored in the encoded
255 The SSL_CTX structure automatically generates keys for ticket
256 protection in servers so again support should be possible
257 with no application modification.
259 If a client or server wishes to disable RFC4507 support then the option
260 SSL_OP_NO_TICKET can be set.
262 Add a TLS extension debugging callback to allow the contents of any client
263 or server extensions to be examined.
265 This work was sponsored by Google.
268 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
269 OpenSSL should now compile cleanly on gcc 4.2
270 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
272 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
273 support including streaming MAC support: this is required for GOST
275 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
277 *) Add option -stream to use PKCS#7 streaming in smime utility. New
278 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
279 to output in BER and PEM format.
282 *) Experimental support for use of HMAC via EVP_PKEY interface. This
283 allows HMAC to be handled via the EVP_DigestSign*() interface. The
284 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
285 ENGINE support for HMAC keys which are unextractable. New -mac and
286 -macopt options to dgst utility.
289 *) New option -sigopt to dgst utility. Update dgst to use
290 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
291 alternative signing paramaters such as X9.31 or PSS in the dgst
295 *) Change ssl_cipher_apply_rule(), the internal function that does
296 the work each time a ciphersuite string requests enabling
297 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
298 removing ("!foo+bar") a class of ciphersuites: Now it maintains
299 the order of disabled ciphersuites such that those ciphersuites
300 that most recently went from enabled to disabled not only stay
301 in order with respect to each other, but also have higher priority
302 than other disabled ciphersuites the next time ciphersuites are
305 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
306 the same ciphersuites as with "HIGH" alone, but in a specific
307 order where the PSK ciphersuites come first (since they are the
308 most recently disabled ciphersuites when "HIGH" is parsed).
310 Also, change ssl_create_cipher_list() (using this new
311 funcionality) such that between otherwise identical
312 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
316 *) Change ssl_create_cipher_list() so that it automatically
317 arranges the ciphersuites in reasonable order before starting
318 to process the rule string. Thus, the definition for "DEFAULT"
319 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
320 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
321 This makes it much easier to arrive at a reasonable default order
322 in applications for which anonymous ciphers are OK (meaning
323 that you can't actually use DEFAULT).
324 [Bodo Moeller; suggested by Victor Duchovni]
326 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
327 processing) into multiple integers instead of setting
328 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
329 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
330 (These masks as well as the individual bit definitions are hidden
331 away into the non-exported interface ssl/ssl_locl.h, so this
332 change to the definition of the SSL_CIPHER structure shouldn't
333 affect applications.) This give us more bits for each of these
334 categories, so there is no longer a need to coagulate AES128 and
335 AES256 into a single algorithm bit, and to coagulate Camellia128
336 and Camellia256 into a single algorithm bit, which has led to all
339 Thus, among other things, the kludge introduced in 0.9.7m and
340 0.9.8e for masking out AES256 independently of AES128 or masking
341 out Camellia256 independently of AES256 is not needed here in 0.9.9.
343 With the change, we also introduce new ciphersuite aliases that
344 so far were missing: "AES128", "AES256", "CAMELLIA128", and
348 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
349 Use the leftmost N bytes of the signature input if the input is
350 larger than the prime q (with N being the size in bytes of q).
353 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
354 it yet and it is largely untested.
357 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
360 *) Initial incomplete changes to avoid need for function casts in OpenSSL
361 some compilers (gcc 4.2 and later) reject their use. Safestack is
362 reimplemented. Update ASN1 to avoid use of legacy functions.
365 *) Win32/64 targets are linked with Winsock2.
368 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
369 to external functions. This can be used to increase CRL handling
370 efficiency especially when CRLs are very large by (for example) storing
371 the CRL revoked certificates in a database.
374 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
375 new CRLs added to a directory can be used. New command line option
376 -verify_return_error to s_client and s_server. This causes real errors
377 to be returned by the verify callback instead of carrying on no matter
378 what. This reflects the way a "real world" verify callback would behave.
381 *) GOST engine, supporting several GOST algorithms and public key formats.
382 Kindly donated by Cryptocom.
385 *) Partial support for Issuing Distribution Point CRL extension. CRLs
386 partitioned by DP are handled but no indirect CRL or reason partitioning
387 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
388 selected via a scoring technique which handles IDP and AKID in CRLs.
391 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
392 will ultimately be used for all verify operations: this will remove the
393 X509_STORE dependency on certificate verification and allow alternative
394 lookup methods. X509_STORE based implementations of these two callbacks.
397 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
398 Modify get_crl() to find a valid (unexpired) CRL if possible.
401 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
402 this would be called X509_CRL_cmp() but that name is already used by
403 a function that just compares CRL issuer names. Cache several CRL
404 extensions in X509_CRL structure and cache CRLDP in X509.
407 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
408 this maps equivalent X509_NAME structures into a consistent structure.
409 Name comparison can then be performed rapidly using memcmp().
412 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
416 *) Allow digests to supply their own micalg string for S/MIME type using
417 the ctrl EVP_MD_CTRL_MICALG.
420 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
421 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
422 ctrl. It can then customise the structure before and/or after signing
426 *) New function OBJ_add_sigid() to allow application defined signature OIDs
427 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
428 to free up any added signature OIDs.
431 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
432 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
433 digest and cipher tables. New options added to openssl utility:
434 list-message-digest-algorithms and list-cipher-algorithms.
437 *) Change the array representation of binary polynomials: the list
438 of degrees of non-zero coefficients is now terminated with -1.
439 Previously it was terminated with 0, which was also part of the
440 value; thus, the array representation was not applicable to
441 polynomials where t^0 has coefficient zero. This change makes
442 the array representation useful in a more general context.
445 *) Various modifications and fixes to SSL/TLS cipher string
446 handling. For ECC, the code now distinguishes between fixed ECDH
447 with RSA certificates on the one hand and with ECDSA certificates
448 on the other hand, since these are separate ciphersuites. The
449 unused code for Fortezza ciphersuites has been removed.
451 For consistency with EDH, ephemeral ECDH is now called "EECDH"
452 (not "ECDHE"). For consistency with the code for DH
453 certificates, use of ECDH certificates is now considered ECDH
454 authentication, not RSA or ECDSA authentication (the latter is
455 merely the CA's signing algorithm and not actively used in the
458 The temporary ciphersuite alias "ECCdraft" is no longer
459 available, and ECC ciphersuites are no longer excluded from "ALL"
460 and "DEFAULT". The following aliases now exist for RFC 4492
461 ciphersuites, most of these by analogy with the DH case:
463 kECDHr - ECDH cert, signed with RSA
464 kECDHe - ECDH cert, signed with ECDSA
465 kECDH - ECDH cert (signed with either RSA or ECDSA)
466 kEECDH - ephemeral ECDH
467 ECDH - ECDH cert or ephemeral ECDH
473 AECDH - anonymous ECDH
474 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
478 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
479 Use correct micalg parameters depending on digest(s) in signed message.
482 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
483 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
486 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
487 an engine to register a method. Add ENGINE lookups for methods and
488 functional reference processing.
491 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
492 EVP_{Sign,Verify}* which allow an application to customise the signature
496 *) New -resign option to smime utility. This adds one or more signers
497 to an existing PKCS#7 signedData structure. Also -md option to use an
498 alternative message digest algorithm for signing.
501 *) Tidy up PKCS#7 routines and add new functions to make it easier to
502 create PKCS7 structures containing multiple signers. Update smime
503 application to support multiple signers.
506 *) New -macalg option to pkcs12 utility to allow setting of an alternative
510 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
511 Reorganize PBE internals to lookup from a static table using NIDs,
512 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
513 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
514 PRF which will be automatically used with PBES2.
517 *) Replace the algorithm specific calls to generate keys in "req" with the
521 *) Update PKCS#7 enveloped data routines to use new API. This is now
522 supported by any public key method supporting the encrypt operation. A
523 ctrl is added to allow the public key algorithm to examine or modify
524 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
528 *) Add a ctrl to asn1 method to allow a public key algorithm to express
529 a default digest type to use. In most cases this will be SHA1 but some
530 algorithms (such as GOST) need to specify an alternative digest. The
531 return value indicates how strong the prefernce is 1 means optional and
532 2 is mandatory (that is it is the only supported type). Modify
533 ASN1_item_sign() to accept a NULL digest argument to indicate it should
534 use the default md. Update openssl utilities to use the default digest
535 type for signing if it is not explicitly indicated.
538 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
539 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
540 signing method from the key type. This effectively removes the link
541 between digests and public key types.
544 *) Add an OID cross reference table and utility functions. Its purpose is to
545 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
546 rsaEncryption. This will allow some of the algorithm specific hackery
547 needed to use the correct OID to be removed.
550 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
551 structures for PKCS7_sign(). They are now set up by the relevant public
555 *) Add provisional EC pkey method with support for ECDSA and ECDH.
558 *) Add support for key derivation (agreement) in the API, DH method and
562 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
563 public and private key formats. As a side effect these add additional
564 command line functionality not previously available: DSA signatures can be
565 generated and verified using pkeyutl and DH key support and generation in
570 [Oliver Tappe <zooey@hirschkaefer.de>]
572 *) New make target "install_html_docs" installs HTML renditions of the
574 [Oliver Tappe <zooey@hirschkaefer.de>]
576 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
577 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
578 support key and parameter generation and add initial key generation
579 functionality for RSA.
582 *) Add functions for main EVP_PKEY_method operations. The undocumented
583 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
584 EVP_PKEY_{encrypt,decrypt}_old.
587 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
588 key API, doesn't do much yet.
591 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
592 public key algorithms. New option to openssl utility:
593 "list-public-key-algorithms" to print out info.
596 *) Implement the Supported Elliptic Curves Extension for
597 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
600 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
601 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
604 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
605 utilities such as rsa, dsa, dsaparam etc except they process any key
609 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
610 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
611 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
615 *) Initial support for pluggable public key ASN1.
616 De-spaghettify the public key ASN1 handling. Move public and private
617 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
618 algorithm specific handling to a single module within the relevant
619 algorithm directory. Add functions to allow (near) opaque processing
620 of public and private key structures.
623 *) Implement the Supported Point Formats Extension for
624 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
627 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
628 for the psk identity [hint] and the psk callback functions to the
629 SSL_SESSION, SSL and SSL_CTX structure.
632 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
636 SSL_CTX_use_psk_identity_hint
637 SSL_get_psk_identity_hint
639 SSL_use_psk_identity_hint
641 [Mika Kousa and Pasi Eronen of Nokia Corporation]
643 *) Add RFC 3161 compliant time stamp request creation, response generation
644 and response verification functionality.
645 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
647 *) Add initial support for TLS extensions, specifically for the server_name
648 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
649 have new members for a host name. The SSL data structure has an
650 additional member SSL_CTX *initial_ctx so that new sessions can be
651 stored in that context to allow for session resumption, even after the
652 SSL has been switched to a new SSL_CTX in reaction to a client's
653 server_name extension.
655 New functions (subject to change):
658 SSL_get_servername_type()
661 New CTRL codes and macros (subject to change):
663 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
664 - SSL_CTX_set_tlsext_servername_callback()
665 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
666 - SSL_CTX_set_tlsext_servername_arg()
667 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
669 openssl s_client has a new '-servername ...' option.
671 openssl s_server has new options '-servername_host ...', '-cert2 ...',
672 '-key2 ...', '-servername_fatal' (subject to change). This allows
673 testing the HostName extension for a specific single host name ('-cert'
674 and '-key' remain fallbacks for handshakes without HostName
675 negotiation). If the unrecogninzed_name alert has to be sent, this by
676 default is a warning; it becomes fatal with the '-servername_fatal'
679 [Peter Sylvester, Remy Allais, Christophe Renou]
681 *) Whirlpool hash implementation is added.
684 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
685 bn(64,32). Because of instruction set limitations it doesn't have
686 any negative impact on performance. This was done mostly in order
687 to make it possible to share assembler modules, such as bn_mul_mont
688 implementations, between 32- and 64-bit builds without hassle.
691 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
692 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
696 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
697 dedicated Montgomery multiplication procedure, is introduced.
698 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
699 "64-bit" performance on certain 32-bit targets.
702 *) New option SSL_OP_NO_COMP to disable use of compression selectively
703 in SSL structures. New SSL ctrl to set maximum send fragment size.
704 Save memory by seeting the I/O buffer sizes dynamically instead of
705 using the maximum available value.
708 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
709 in addition to the text details.
712 *) Very, very preliminary EXPERIMENTAL support for printing of general
713 ASN1 structures. This currently produces rather ugly output and doesn't
714 handle several customised structures at all.
717 *) Integrated support for PVK file format and some related formats such
718 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
719 these in the 'rsa' and 'dsa' utilities.
722 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
725 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
726 place for the (very old) "NETSCAPE" format certificates which are now
727 handled using new ASN1 code equivalents.
730 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
731 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
732 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
735 *) Modify CRL distribution points extension code to print out previously
736 unsupported fields. Enhance extension setting code to allow setting of
740 *) Add print and set support for Issuing Distribution Point CRL extension.
743 *) Change 'Configure' script to enable Camellia by default.
746 Changes between 0.9.8j and 0.9.8k [xx XXX xxxx]
748 *) New -hex option for openssl rand.
751 *) Print out UTF8String and NumericString when parsing ASN1.
754 *) Support NumericString type for name components.
757 *) Allow CC in the environment to override the automatically chosen
758 compiler. Note that nothing is done to ensure flags work with the
762 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
764 *) Properly check EVP_VerifyFinal() and similar return values
766 [Ben Laurie, Bodo Moeller, Google Security Team]
768 *) Enable TLS extensions by default.
771 *) Allow the CHIL engine to be loaded, whether the application is
772 multithreaded or not. (This does not release the developer from the
773 obligation to set up the dynamic locking callbacks.)
774 [Sander Temme <sander@temme.net>]
776 *) Use correct exit code if there is an error in dgst command.
777 [Steve Henson; problem pointed out by Roland Dirlewanger]
779 *) Tweak Configure so that you need to say "experimental-jpake" to enable
780 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
783 *) Add experimental JPAKE support, including demo authentication in
784 s_client and s_server.
787 *) Set the comparison function in v3_addr_canonize().
788 [Rob Austein <sra@hactrn.net>]
790 *) Add support for XMPP STARTTLS in s_client.
791 [Philip Paeps <philip@freebsd.org>]
793 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
794 to ensure that even with this option, only ciphersuites in the
795 server's preference list will be accepted. (Note that the option
796 applies only when resuming a session, so the earlier behavior was
797 just about the algorithm choice for symmetric cryptography.)
800 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
802 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
803 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
806 *) The fix in 0.9.8c that supposedly got rid of unsafe
807 double-checked locking was incomplete for RSA blinding,
808 addressing just one layer of what turns out to have been
809 doubly unsafe triple-checked locking.
811 So now fix this for real by retiring the MONT_HELPER macro
812 in crypto/rsa/rsa_eay.c.
814 [Bodo Moeller; problem pointed out by Marius Schilder]
816 *) Various precautionary measures:
818 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
820 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
821 (NB: This would require knowledge of the secret session ticket key
822 to exploit, in which case you'd be SOL either way.)
824 - Change bn_nist.c so that it will properly handle input BIGNUMs
825 outside the expected range.
827 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
830 [Neel Mehta, Bodo Moeller]
832 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
833 the load fails. Useful for distros.
834 [Ben Laurie and the FreeBSD team]
836 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
839 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
842 *) Expand ENGINE to support engine supplied SSL client certificate functions.
844 This work was sponsored by Logica.
847 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
848 keystores. Support for SSL/TLS client authentication too.
849 Not compiled unless enable-capieng specified to Configure.
851 This work was sponsored by Logica.
854 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
855 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
856 attribute creation routines such as certifcate requests and PKCS#12
860 Changes between 0.9.8g and 0.9.8h [28 May 2008]
862 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
863 handshake which could lead to a cilent crash as found using the
864 Codenomicon TLS test suite (CVE-2008-1672)
865 [Steve Henson, Mark Cox]
867 *) Fix double free in TLS server name extensions which could lead to
868 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
871 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
873 Clear the error queue to ensure that error entries left from
874 older function calls do not interfere with the correct operation.
875 [Lutz Jaenicke, Erik de Castro Lopo]
877 *) Remove root CA certificates of commercial CAs:
879 The OpenSSL project does not recommend any specific CA and does not
880 have any policy with respect to including or excluding any CA.
881 Therefore it does not make any sense to ship an arbitrary selection
882 of root CA certificates with the OpenSSL software.
885 *) RSA OAEP patches to fix two separate invalid memory reads.
886 The first one involves inputs when 'lzero' is greater than
887 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
888 before the beginning of from). The second one involves inputs where
889 the 'db' section contains nothing but zeroes (there is a one-byte
890 invalid read after the end of 'db').
891 [Ivan Nestlerode <inestlerode@us.ibm.com>]
893 *) Partial backport from 0.9.9-dev:
895 Introduce bn_mul_mont (dedicated Montgomery multiplication
896 procedure) as a candidate for BIGNUM assembler implementation.
897 While 0.9.9-dev uses assembler for various architectures, only
898 x86_64 is available by default here in the 0.9.8 branch, and
899 32-bit x86 is available through a compile-time setting.
901 To try the 32-bit x86 assembler implementation, use Configure
902 option "enable-montasm" (which exists only for this backport).
904 As "enable-montasm" for 32-bit x86 disclaims code stability
905 anyway, in this constellation we activate additional code
906 backported from 0.9.9-dev for further performance improvements,
907 namely BN_from_montgomery_word. (To enable this otherwise,
908 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
910 [Andy Polyakov (backport partially by Bodo Moeller)]
912 *) Add TLS session ticket callback. This allows an application to set
913 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
914 values. This is useful for key rollover for example where several key
915 sets may exist with different names.
918 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
919 This was broken until now in 0.9.8 releases, such that the only way
920 a registered ENGINE could be used (assuming it initialises
921 successfully on the host) was to explicitly set it as the default
922 for the relevant algorithms. This is in contradiction with 0.9.7
923 behaviour and the documentation. With this fix, when an ENGINE is
924 registered into a given algorithm's table of implementations, the
925 'uptodate' flag is reset so that auto-discovery will be used next
926 time a new context for that algorithm attempts to select an
928 [Ian Lister (tweaked by Geoff Thorpe)]
930 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
931 implemention in the following ways:
933 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
936 Lack of BER streaming support means one pass streaming processing is
937 only supported if data is detached: setting the streaming flag is
938 ignored for embedded content.
940 CMS support is disabled by default and must be explicitly enabled
941 with the enable-cms configuration option.
944 *) Update the GMP engine glue to do direct copies between BIGNUM and
945 mpz_t when openssl and GMP use the same limb size. Otherwise the
946 existing "conversion via a text string export" trick is still used.
947 [Paul Sheer <paulsheer@gmail.com>]
949 *) Zlib compression BIO. This is a filter BIO which compressed and
950 uncompresses any data passed through it.
953 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
954 RFC3394 compatible AES key wrapping.
957 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
958 sets string data without copying. X509_ALGOR_set0() and
959 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
960 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
961 from an X509_ATTRIBUTE structure optionally checking it occurs only
962 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
966 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
967 to get the expected BN_FLG_CONSTTIME behavior.
968 [Bodo Moeller (Google)]
972 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
973 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
974 - added some more tests to do_tests.pl
975 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
976 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
977 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
978 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
979 - various changes to netware.pl to enable gcc-cross builds on Win32
981 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
982 - various changes to fix missing prototype warnings
983 - fixed x86nasm.pl to create correct asm files for NASM COFF output
984 - added AES, WHIRLPOOL and CPUID assembler code to build files
985 - added missing AES assembler make rules to mk1mf.pl
986 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
987 [Guenter Knauf <eflash@gmx.net>]
989 *) Implement certificate status request TLS extension defined in RFC3546.
990 A client can set the appropriate parameters and receive the encoded
991 OCSP response via a callback. A server can query the supplied parameters
992 and set the encoded OCSP response in the callback. Add simplified examples
993 to s_client and s_server.
996 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
999 + Binary incompatibility of ssl_ctx_st structure
1000 + DTLS interoperation with non-compliant servers
1001 + Don't call get_session_cb() without proposed session
1002 + Fix ia64 assembler code
1003 [Andy Polyakov, Steve Henson]
1005 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1007 *) DTLS Handshake overhaul. There were longstanding issues with
1008 OpenSSL DTLS implementation, which were making it impossible for
1009 RFC 4347 compliant client to communicate with OpenSSL server.
1010 Unfortunately just fixing these incompatibilities would "cut off"
1011 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1012 server keeps tolerating non RFC compliant syntax. The opposite is
1013 not true, 0.9.8f client can not communicate with earlier server.
1014 This update even addresses CVE-2007-4995.
1017 *) Changes to avoid need for function casts in OpenSSL: some compilers
1018 (gcc 4.2 and later) reject their use.
1019 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1022 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1023 RFC4507bis. The encrypted ticket format is an encrypted encoded
1024 SSL_SESSION structure, that way new session features are automatically
1027 If a client application caches session in an SSL_SESSION structure
1028 support is transparent because tickets are now stored in the encoded
1031 The SSL_CTX structure automatically generates keys for ticket
1032 protection in servers so again support should be possible
1033 with no application modification.
1035 If a client or server wishes to disable RFC4507 support then the option
1036 SSL_OP_NO_TICKET can be set.
1038 Add a TLS extension debugging callback to allow the contents of any client
1039 or server extensions to be examined.
1041 This work was sponsored by Google.
1044 *) Add initial support for TLS extensions, specifically for the server_name
1045 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1046 have new members for a host name. The SSL data structure has an
1047 additional member SSL_CTX *initial_ctx so that new sessions can be
1048 stored in that context to allow for session resumption, even after the
1049 SSL has been switched to a new SSL_CTX in reaction to a client's
1050 server_name extension.
1052 New functions (subject to change):
1054 SSL_get_servername()
1055 SSL_get_servername_type()
1058 New CTRL codes and macros (subject to change):
1060 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1061 - SSL_CTX_set_tlsext_servername_callback()
1062 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1063 - SSL_CTX_set_tlsext_servername_arg()
1064 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1066 openssl s_client has a new '-servername ...' option.
1068 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1069 '-key2 ...', '-servername_fatal' (subject to change). This allows
1070 testing the HostName extension for a specific single host name ('-cert'
1071 and '-key' remain fallbacks for handshakes without HostName
1072 negotiation). If the unrecogninzed_name alert has to be sent, this by
1073 default is a warning; it becomes fatal with the '-servername_fatal'
1076 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1078 *) Add AES and SSE2 assembly language support to VC++ build.
1081 *) Mitigate attack on final subtraction in Montgomery reduction.
1084 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1085 (which previously caused an internal error).
1088 *) Squeeze another 10% out of IGE mode when in != out.
1091 *) AES IGE mode speedup.
1092 [Dean Gaudet (Google)]
1094 *) Add the Korean symmetric 128-bit cipher SEED (see
1095 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1096 add SEED ciphersuites from RFC 4162:
1098 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1099 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1100 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1101 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1103 To minimize changes between patchlevels in the OpenSSL 0.9.8
1104 series, SEED remains excluded from compilation unless OpenSSL
1105 is configured with 'enable-seed'.
1106 [KISA, Bodo Moeller]
1108 *) Mitigate branch prediction attacks, which can be practical if a
1109 single processor is shared, allowing a spy process to extract
1110 information. For detailed background information, see
1111 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1112 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1113 and Necessary Software Countermeasures"). The core of the change
1114 are new versions BN_div_no_branch() and
1115 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1116 respectively, which are slower, but avoid the security-relevant
1117 conditional branches. These are automatically called by BN_div()
1118 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1119 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1120 remove a conditional branch.
1122 BN_FLG_CONSTTIME is the new name for the previous
1123 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1124 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1125 in the exponent causes BN_mod_exp_mont() to use the alternative
1126 implementation in BN_mod_exp_mont_consttime().) The old name
1127 remains as a deprecated alias.
1129 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1130 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1131 constant-time implementations for more than just exponentiation.
1132 Here too the old name is kept as a deprecated alias.
1134 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1135 the BN_BLINDING structure gets an independent copy of the
1136 modulus. This means that the previous "BIGNUM *m" argument to
1137 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1138 essentially becomes "const BIGNUM *m", although we can't actually
1139 change this in the header file before 0.9.9. It allows
1140 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1141 enable BN_FLG_CONSTTIME.
1143 [Matthew D Wood (Intel Corp)]
1145 *) In the SSL/TLS server implementation, be strict about session ID
1146 context matching (which matters if an application uses a single
1147 external cache for different purposes). Previously,
1148 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1149 set. This did ensure strict client verification, but meant that,
1150 with applications using a single external cache for quite
1151 different requirements, clients could circumvent ciphersuite
1152 restrictions for a given session ID context by starting a session
1153 in a different context.
1156 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1157 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1158 authentication-only ciphersuites.
1161 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1162 not complete and could lead to a possible single byte overflow
1163 (CVE-2007-5135) [Ben Laurie]
1165 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1167 *) Since AES128 and AES256 (and similarly Camellia128 and
1168 Camellia256) share a single mask bit in the logic of
1169 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1170 kludge to work properly if AES128 is available and AES256 isn't
1171 (or if Camellia128 is available and Camellia256 isn't).
1174 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1175 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1176 When a point or a seed is encoded in a BIT STRING, we need to
1177 prevent the removal of trailing zero bits to get the proper DER
1178 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1179 of a NamedBitList, for which trailing 0 bits need to be removed.)
1182 *) Have SSL/TLS server implementation tolerate "mismatched" record
1183 protocol version while receiving ClientHello even if the
1184 ClientHello is fragmented. (The server can't insist on the
1185 particular protocol version it has chosen before the ServerHello
1186 message has informed the client about his choice.)
1189 *) Add RFC 3779 support.
1190 [Rob Austein for ARIN, Ben Laurie]
1192 *) Load error codes if they are not already present instead of using a
1193 static variable. This allows them to be cleanly unloaded and reloaded.
1194 Improve header file function name parsing.
1197 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1198 or CAPABILITY handshake as required by RFCs.
1201 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1203 *) Introduce limits to prevent malicious keys being able to
1204 cause a denial of service. (CVE-2006-2940)
1205 [Steve Henson, Bodo Moeller]
1207 *) Fix ASN.1 parsing of certain invalid structures that can result
1208 in a denial of service. (CVE-2006-2937) [Steve Henson]
1210 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1211 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1213 *) Fix SSL client code which could crash if connecting to a
1214 malicious SSLv2 server. (CVE-2006-4343)
1215 [Tavis Ormandy and Will Drewry, Google Security Team]
1217 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1218 match only those. Before that, "AES256-SHA" would be interpreted
1219 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1220 the same strength classification in 0.9.7h) as we currently only
1221 have a single AES bit in the ciphersuite description bitmap.
1222 That change, however, also applied to ciphersuite strings such as
1223 "RC4-MD5" that intentionally matched multiple ciphersuites --
1224 namely, SSL 2.0 ciphersuites in addition to the more common ones
1225 from SSL 3.0/TLS 1.0.
1227 So we change the selection algorithm again: Naming an explicit
1228 ciphersuite selects this one ciphersuite, and any other similar
1229 ciphersuite (same bitmap) from *other* protocol versions.
1230 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1231 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1233 Since SSL 2.0 does not have any ciphersuites for which the
1234 128/256 bit distinction would be relevant, this works for now.
1235 The proper fix will be to use different bits for AES128 and
1236 AES256, which would have avoided the problems from the beginning;
1237 however, bits are scarce, so we can only do this in a new release
1238 (not just a patchlevel) when we can change the SSL_CIPHER
1239 definition to split the single 'unsigned long mask' bitmap into
1240 multiple values to extend the available space.
1244 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1246 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1247 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1249 *) Add AES IGE and biIGE modes.
1252 *) Change the Unix randomness entropy gathering to use poll() when
1253 possible instead of select(), since the latter has some
1254 undesirable limitations.
1255 [Darryl Miles via Richard Levitte and Bodo Moeller]
1257 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1258 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1259 cannot be implicitly activated as part of, e.g., the "AES" alias.
1260 However, please upgrade to OpenSSL 0.9.9[-dev] for
1261 non-experimental use of the ECC ciphersuites to get TLS extension
1262 support, which is required for curve and point format negotiation
1263 to avoid potential handshake problems.
1266 *) Disable rogue ciphersuites:
1268 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1269 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1270 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1272 The latter two were purportedly from
1273 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1276 Also deactivate the remaining ciphersuites from
1277 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1278 unofficial, and the ID has long expired.
1281 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1282 dual-core machines) and other potential thread-safety issues.
1285 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1286 versions), which is now available for royalty-free use
1287 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1288 Also, add Camellia TLS ciphersuites from RFC 4132.
1290 To minimize changes between patchlevels in the OpenSSL 0.9.8
1291 series, Camellia remains excluded from compilation unless OpenSSL
1292 is configured with 'enable-camellia'.
1295 *) Disable the padding bug check when compression is in use. The padding
1296 bug check assumes the first packet is of even length, this is not
1297 necessarily true if compresssion is enabled and can result in false
1298 positives causing handshake failure. The actual bug test is ancient
1299 code so it is hoped that implementations will either have fixed it by
1300 now or any which still have the bug do not support compression.
1303 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1305 *) When applying a cipher rule check to see if string match is an explicit
1306 cipher suite and only match that one cipher suite if it is.
1309 *) Link in manifests for VC++ if needed.
1310 [Austin Ziegler <halostatue@gmail.com>]
1312 *) Update support for ECC-based TLS ciphersuites according to
1313 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1314 TLS extensions, which are supported starting with the 0.9.9
1315 branch, not in the OpenSSL 0.9.8 branch).
1318 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1319 opaque EVP_CIPHER_CTX handling.
1322 *) Fixes and enhancements to zlib compression code. We now only use
1323 "zlib1.dll" and use the default __cdecl calling convention on Win32
1324 to conform with the standards mentioned here:
1325 http://www.zlib.net/DLL_FAQ.txt
1326 Static zlib linking now works on Windows and the new --with-zlib-include
1327 --with-zlib-lib options to Configure can be used to supply the location
1328 of the headers and library. Gracefully handle case where zlib library
1332 *) Several fixes and enhancements to the OID generation code. The old code
1333 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1334 handle numbers larger than ULONG_MAX, truncated printing and had a
1335 non standard OBJ_obj2txt() behaviour.
1338 *) Add support for building of engines under engine/ as shared libraries
1339 under VC++ build system.
1342 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1343 Hopefully, we will not see any false combination of paths any more.
1346 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1348 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1349 (part of SSL_OP_ALL). This option used to disable the
1350 countermeasure against man-in-the-middle protocol-version
1351 rollback in the SSL 2.0 server implementation, which is a bad
1352 idea. (CVE-2005-2969)
1354 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1355 for Information Security, National Institute of Advanced Industrial
1356 Science and Technology [AIST], Japan)]
1358 *) Add two function to clear and return the verify parameter flags.
1361 *) Keep cipherlists sorted in the source instead of sorting them at
1362 runtime, thus removing the need for a lock.
1365 *) Avoid some small subgroup attacks in Diffie-Hellman.
1366 [Nick Mathewson and Ben Laurie]
1368 *) Add functions for well-known primes.
1371 *) Extended Windows CE support.
1372 [Satoshi Nakamura and Andy Polyakov]
1374 *) Initialize SSL_METHOD structures at compile time instead of during
1375 runtime, thus removing the need for a lock.
1378 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1379 attempting to decrypt each encrypted key in turn. Add support to
1383 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1385 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1388 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1391 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1392 key into the same file any more.
1395 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1398 *) Add -utf8 command line and config file option to 'ca'.
1399 [Stefan <stf@udoma.org]
1401 *) Removed the macro des_crypt(), as it seems to conflict with some
1402 libraries. Use DES_crypt().
1405 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1406 involves renaming the source and generated shared-libs for
1407 both. The engines will accept the corrected or legacy ids
1408 ('ncipher' and '4758_cca' respectively) when binding. NB,
1409 this only applies when building 'shared'.
1410 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1412 *) Add attribute functions to EVP_PKEY structure. Modify
1413 PKCS12_create() to recognize a CSP name attribute and
1414 use it. Make -CSP option work again in pkcs12 utility.
1417 *) Add new functionality to the bn blinding code:
1418 - automatic re-creation of the BN_BLINDING parameters after
1419 a fixed number of uses (currently 32)
1420 - add new function for parameter creation
1421 - introduce flags to control the update behaviour of the
1422 BN_BLINDING parameters
1423 - hide BN_BLINDING structure
1424 Add a second BN_BLINDING slot to the RSA structure to improve
1425 performance when a single RSA object is shared among several
1429 *) Add support for DTLS.
1430 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1432 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1433 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1436 *) Remove buggy and incompletet DH cert support from
1437 ssl/ssl_rsa.c and ssl/s3_both.c
1440 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1441 the apps/openssl applications.
1444 *) Compile clean with "-Wall -Wmissing-prototypes
1445 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1446 DEBUG_SAFESTACK must also be set.
1449 *) Change ./Configure so that certain algorithms can be disabled by default.
1450 The new counterpiece to "no-xxx" is "enable-xxx".
1452 The patented RC5 and MDC2 algorithms will now be disabled unless
1453 "enable-rc5" and "enable-mdc2", respectively, are specified.
1455 (IDEA remains enabled despite being patented. This is because IDEA
1456 is frequently required for interoperability, and there is no license
1457 fee for non-commercial use. As before, "no-idea" can be used to
1458 avoid this algorithm.)
1462 *) Add processing of proxy certificates (see RFC 3820). This work was
1463 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1464 EGEE (Enabling Grids for E-science in Europe).
1467 *) RC4 performance overhaul on modern architectures/implementations, such
1468 as Intel P4, IA-64 and AMD64.
1471 *) New utility extract-section.pl. This can be used specify an alternative
1472 section number in a pod file instead of having to treat each file as
1473 a separate case in Makefile. This can be done by adding two lines to the
1476 =for comment openssl_section:XXX
1478 The blank line is mandatory.
1482 *) New arguments -certform, -keyform and -pass for s_client and s_server
1483 to allow alternative format key and certificate files and passphrase
1487 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1488 update associated structures and add various utility functions.
1490 Add new policy related verify parameters, include policy checking in
1491 standard verify code. Enhance 'smime' application with extra parameters
1492 to support policy checking and print out.
1495 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1496 Nehemiah processors. These extensions support AES encryption in hardware
1497 as well as RNG (though RNG support is currently disabled).
1498 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1500 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1503 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1504 [Andy Polyakov and a number of other people]
1506 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1507 implementation contributed by IBM.
1508 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1510 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1511 exponent rather than 'unsigned long'. There is a corresponding change to
1512 the new 'rsa_keygen' element of the RSA_METHOD structure.
1513 [Jelte Jansen, Geoff Thorpe]
1515 *) Functionality for creating the initial serial number file is now
1516 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1518 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1519 number file to 1, which is bound to cause problems. To avoid
1520 the problems while respecting compatibility between different 0.9.7
1521 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1522 CA.pl for serial number initialization. With the new release 0.9.8,
1523 we can fix the problem directly in the 'ca' utility.)
1526 *) Reduced header interdepencies by declaring more opaque objects in
1527 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1528 give fewer recursive includes, which could break lazy source code - so
1529 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1530 developers should define this symbol when building and using openssl to
1531 ensure they track the recommended behaviour, interfaces, [etc], but
1532 backwards-compatible behaviour prevails when this isn't defined.
1535 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1538 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1539 This will generate a random key of the appropriate length based on the
1540 cipher context. The EVP_CIPHER can provide its own random key generation
1541 routine to support keys of a specific form. This is used in the des and
1542 3des routines to generate a key of the correct parity. Update S/MIME
1543 code to use new functions and hence generate correct parity DES keys.
1544 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1545 valid (weak or incorrect parity).
1548 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1549 as looking them up. This is useful when the verified structure may contain
1550 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1551 present unless the new PKCS7_NO_CRL flag is asserted.
1554 *) Extend ASN1 oid configuration module. It now additionally accepts the
1557 shortName = some long name, 1.2.3.4
1560 *) Reimplemented the BN_CTX implementation. There is now no more static
1561 limitation on the number of variables it can handle nor the depth of the
1562 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1563 information can now expand as required, and rather than having a single
1564 static array of bignums, BN_CTX now uses a linked-list of such arrays
1565 allowing it to expand on demand whilst maintaining the usefulness of
1566 BN_CTX's "bundling".
1569 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1570 to allow all RSA operations to function using a single BN_CTX.
1573 *) Preliminary support for certificate policy evaluation and checking. This
1574 is initially intended to pass the tests outlined in "Conformance Testing
1575 of Relying Party Client Certificate Path Processing Logic" v1.07.
1578 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1579 remained unused and not that useful. A variety of other little bignum
1580 tweaks and fixes have also been made continuing on from the audit (see
1584 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1585 associated ASN1, EVP and SSL functions and old ASN1 macros.
1588 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1589 and this should never fail. So the return value from the use of
1590 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1591 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1594 *) BN_CTX_get() should return zero-valued bignums, providing the same
1595 initialised value as BN_new().
1596 [Geoff Thorpe, suggested by Ulf Möller]
1598 *) Support for inhibitAnyPolicy certificate extension.
1601 *) An audit of the BIGNUM code is underway, for which debugging code is
1602 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1603 is considered valid when processing BIGNUMs, and causes execution to
1604 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1605 further steps are taken to deliberately pollute unused data in BIGNUM
1606 structures to try and expose faulty code further on. For now, openssl will
1607 (in its default mode of operation) continue to tolerate the inconsistent
1608 forms that it has tolerated in the past, but authors and packagers should
1609 consider trying openssl and their own applications when compiled with
1610 these debugging symbols defined. It will help highlight potential bugs in
1611 their own code, and will improve the test coverage for OpenSSL itself. At
1612 some point, these tighter rules will become openssl's default to improve
1613 maintainability, though the assert()s and other overheads will remain only
1614 in debugging configurations. See bn.h for more details.
1615 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1617 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1618 that can only be obtained through BN_CTX_new() (which implicitly
1619 initialises it). The presence of this function only made it possible
1620 to overwrite an existing structure (and cause memory leaks).
1623 *) Because of the callback-based approach for implementing LHASH as a
1624 template type, lh_insert() adds opaque objects to hash-tables and
1625 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1626 to clean up those corresponding objects before destroying the hash table
1627 (and losing the object pointers). So some over-zealous constifications in
1628 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1629 objects as "const" and the lh_doall[_arg] callback wrappers are not
1630 prototyped to have "const" restrictions on the object pointers they are
1631 given (and so aren't required to cast them away any more).
1634 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1635 (speed) prefers to use its own implementation. The two implementations
1636 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1637 its object type properly exposed (MS_TM) instead of casting to/from "char
1638 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1639 aren't necessarily the greatest nomenclatures - but this is what was used
1640 internally to the implementation so I've used that for now.
1643 *) Ensure that deprecated functions do not get compiled when
1644 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1645 the self-tests were still using deprecated key-generation functions so
1646 these have been updated also.
1649 *) Reorganise PKCS#7 code to separate the digest location functionality
1650 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1651 New function PKCS7_set_digest() to set the digest type for PKCS#7
1652 digestedData type. Add additional code to correctly generate the
1653 digestedData type and add support for this type in PKCS7 initialization
1657 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1658 structure of type "other".
1661 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1662 sure the loop does correctly stop and breaking ("division by zero")
1663 modulus operations are not performed. The (pre-generated) prime
1664 table crypto/bn/bn_prime.h was already correct, but it could not be
1665 re-generated on some platforms because of the "division by zero"
1666 situation in the script.
1667 [Ralf S. Engelschall]
1669 *) Update support for ECC-based TLS ciphersuites according to
1670 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1671 SHA-1 now is only used for "small" curves (where the
1672 representation of a field element takes up to 24 bytes); for
1673 larger curves, the field element resulting from ECDH is directly
1674 used as premaster secret.
1675 [Douglas Stebila (Sun Microsystems Laboratories)]
1677 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1678 curve secp160r1 to the tests.
1679 [Douglas Stebila (Sun Microsystems Laboratories)]
1681 *) Add the possibility to load symbols globally with DSO.
1682 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1684 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1685 control of the error stack.
1688 *) Add support for STORE in ENGINE.
1691 *) Add the STORE type. The intention is to provide a common interface
1692 to certificate and key stores, be they simple file-based stores, or
1693 HSM-type store, or LDAP stores, or...
1694 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1697 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1698 pass a list of arguments to any function as well as provide a way
1699 for a function to pass data back to the caller.
1702 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1703 works like BUF_strdup() but can be used to duplicate a portion of
1704 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1708 *) Add the function sk_find_ex() which works like sk_find(), but will
1709 return an index to an element even if an exact match couldn't be
1710 found. The index is guaranteed to point at the element where the
1711 searched-for key would be inserted to preserve sorting order.
1714 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1715 takes an extra flags argument for optional functionality. Currently,
1716 the following flags are defined:
1718 OBJ_BSEARCH_VALUE_ON_NOMATCH
1719 This one gets OBJ_bsearch_ex() to return a pointer to the first
1720 element where the comparing function returns a negative or zero
1723 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1724 This one gets OBJ_bsearch_ex() to return a pointer to the first
1725 element where the comparing function returns zero. This is useful
1726 if there are more than one element where the comparing function
1730 *) Make it possible to create self-signed certificates with 'openssl ca'
1731 in such a way that the self-signed certificate becomes part of the
1732 CA database and uses the same mechanisms for serial number generation
1733 as all other certificate signing. The new flag '-selfsign' enables
1734 this functionality. Adapt CA.sh and CA.pl.in.
1737 *) Add functionality to check the public key of a certificate request
1738 against a given private. This is useful to check that a certificate
1739 request can be signed by that key (self-signing).
1742 *) Make it possible to have multiple active certificates with the same
1743 subject in the CA index file. This is done only if the keyword
1744 'unique_subject' is set to 'no' in the main CA section (default
1745 if 'CA_default') of the configuration file. The value is saved
1746 with the database itself in a separate index attribute file,
1747 named like the index file with '.attr' appended to the name.
1750 *) Generate muti valued AVAs using '+' notation in config files for
1754 *) Support for nameConstraints certificate extension.
1757 *) Support for policyConstraints certificate extension.
1760 *) Support for policyMappings certificate extension.
1763 *) Make sure the default DSA_METHOD implementation only uses its
1764 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1765 and change its own handlers to be NULL so as to remove unnecessary
1766 indirection. This lets alternative implementations fallback to the
1767 default implementation more easily.
1770 *) Support for directoryName in GeneralName related extensions
1774 *) Make it possible to link applications using Makefile.shared.
1775 Make that possible even when linking against static libraries!
1778 *) Support for single pass processing for S/MIME signing. This now
1779 means that S/MIME signing can be done from a pipe, in addition
1780 cleartext signing (multipart/signed type) is effectively streaming
1781 and the signed data does not need to be all held in memory.
1783 This is done with a new flag PKCS7_STREAM. When this flag is set
1784 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1785 is done after the data is output (and digests calculated) in
1786 SMIME_write_PKCS7().
1789 *) Add full support for -rpath/-R, both in shared libraries and
1790 applications, at least on the platforms where it's known how
1794 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1795 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1796 will now compute a table of multiples of the generator that
1797 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1798 faster (notably in the case of a single point multiplication,
1799 scalar * generator).
1800 [Nils Larsch, Bodo Moeller]
1802 *) IPv6 support for certificate extensions. The various extensions
1803 which use the IP:a.b.c.d can now take IPv6 addresses using the
1804 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1808 *) Added an ENGINE that implements RSA by performing private key
1809 exponentiations with the GMP library. The conversions to and from
1810 GMP's mpz_t format aren't optimised nor are any montgomery forms
1811 cached, and on x86 it appears OpenSSL's own performance has caught up.
1812 However there are likely to be other architectures where GMP could
1813 provide a boost. This ENGINE is not built in by default, but it can be
1814 specified at Configure time and should be accompanied by the necessary
1815 linker additions, eg;
1816 ./config -DOPENSSL_USE_GMP -lgmp
1819 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1820 testing availability of engines with "-t" - the old behaviour is
1821 produced by increasing the feature's verbosity with "-tt".
1824 *) ECDSA routines: under certain error conditions uninitialized BN objects
1825 could be freed. Solution: make sure initialization is performed early
1826 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1830 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1831 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1832 software implementations. For DSA and DH, parameter generation can
1833 also be overriden by providing the appropriate method callbacks.
1836 *) Change the "progress" mechanism used in key-generation and
1837 primality testing to functions that take a new BN_GENCB pointer in
1838 place of callback/argument pairs. The new API functions have "_ex"
1839 postfixes and the older functions are reimplemented as wrappers for
1840 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1841 declarations of the old functions to help (graceful) attempts to
1842 migrate to the new functions. Also, the new key-generation API
1843 functions operate on a caller-supplied key-structure and return
1844 success/failure rather than returning a key or NULL - this is to
1845 help make "keygen" another member function of RSA_METHOD etc.
1847 Example for using the new callback interface:
1849 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1853 BN_GENCB_set(&my_cb, my_callback, my_arg);
1855 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1856 /* For the meaning of a, b in calls to my_callback(), see the
1857 * documentation of the function that calls the callback.
1858 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1859 * my_callback should return 1 if it wants BN_is_prime_ex()
1860 * to continue, or 0 to stop.
1865 *) Change the ZLIB compression method to be stateful, and make it
1866 available to TLS with the number defined in
1867 draft-ietf-tls-compression-04.txt.
1870 *) Add the ASN.1 structures and functions for CertificatePair, which
1871 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1873 CertificatePair ::= SEQUENCE {
1874 forward [0] Certificate OPTIONAL,
1875 reverse [1] Certificate OPTIONAL,
1876 -- at least one of the pair shall be present -- }
1878 Also implement the PEM functions to read and write certificate
1879 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1881 This needed to be defined, mostly for the sake of the LDAP
1882 attribute crossCertificatePair, but may prove useful elsewhere as
1886 *) Make it possible to inhibit symlinking of shared libraries in
1887 Makefile.shared, for Cygwin's sake.
1890 *) Extend the BIGNUM API by creating a function
1891 void BN_set_negative(BIGNUM *a, int neg);
1892 and a macro that behave like
1893 int BN_is_negative(const BIGNUM *a);
1895 to avoid the need to access 'a->neg' directly in applications.
1898 *) Implement fast modular reduction for pseudo-Mersenne primes
1899 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1900 EC_GROUP_new_curve_GFp() will now automatically use this
1902 [Nils Larsch <nla@trustcenter.de>]
1904 *) Add new lock type (CRYPTO_LOCK_BN).
1907 *) Change the ENGINE framework to automatically load engines
1908 dynamically from specific directories unless they could be
1909 found to already be built in or loaded. Move all the
1910 current engines except for the cryptodev one to a new
1912 The engines in engines/ are built as shared libraries if
1913 the "shared" options was given to ./Configure or ./config.
1914 Otherwise, they are inserted in libcrypto.a.
1915 /usr/local/ssl/engines is the default directory for dynamic
1916 engines, but that can be overriden at configure time through
1917 the usual use of --prefix and/or --openssldir, and at run
1918 time with the environment variable OPENSSL_ENGINES.
1919 [Geoff Thorpe and Richard Levitte]
1921 *) Add Makefile.shared, a helper makefile to build shared
1922 libraries. Addapt Makefile.org.
1925 *) Add version info to Win32 DLLs.
1926 [Peter 'Luna' Runestig" <peter@runestig.com>]
1928 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1929 can be added using this API to created arbitrary PKCS#12
1930 files while avoiding the low level API.
1932 New options to PKCS12_create(), key or cert can be NULL and
1933 will then be omitted from the output file. The encryption
1934 algorithm NIDs can be set to -1 for no encryption, the mac
1935 iteration count can be set to 0 to omit the mac.
1937 Enhance pkcs12 utility by making the -nokeys and -nocerts
1938 options work when creating a PKCS#12 file. New option -nomac
1939 to omit the mac, NONE can be set for an encryption algorithm.
1940 New code is modified to use the enhanced PKCS12_create()
1941 instead of the low level API.
1944 *) Extend ASN1 encoder to support indefinite length constructed
1945 encoding. This can output sequences tags and octet strings in
1946 this form. Modify pk7_asn1.c to support indefinite length
1947 encoding. This is experimental and needs additional code to
1948 be useful, such as an ASN1 bio and some enhanced streaming
1951 Extend template encode functionality so that tagging is passed
1952 down to the template encoder.
1955 *) Let 'openssl req' fail if an argument to '-newkey' is not
1956 recognized instead of using RSA as a default.
1959 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1960 As these are not official, they are not included in "ALL";
1961 the "ECCdraft" ciphersuite group alias can be used to select them.
1962 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1964 *) Add ECDH engine support.
1965 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1967 *) Add ECDH in new directory crypto/ecdh/.
1968 [Douglas Stebila (Sun Microsystems Laboratories)]
1970 *) Let BN_rand_range() abort with an error after 100 iterations
1971 without success (which indicates a broken PRNG).
1974 *) Change BN_mod_sqrt() so that it verifies that the input value
1975 is really the square of the return value. (Previously,
1976 BN_mod_sqrt would show GIGO behaviour.)
1979 *) Add named elliptic curves over binary fields from X9.62, SECG,
1980 and WAP/WTLS; add OIDs that were still missing.
1982 [Sheueling Chang Shantz and Douglas Stebila
1983 (Sun Microsystems Laboratories)]
1985 *) Extend the EC library for elliptic curves over binary fields
1986 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1989 EC_GF2m_simple_method
1993 EC_GROUP_new_curve_GF2m
1994 EC_GROUP_set_curve_GF2m
1995 EC_GROUP_get_curve_GF2m
1996 EC_POINT_set_affine_coordinates_GF2m
1997 EC_POINT_get_affine_coordinates_GF2m
1998 EC_POINT_set_compressed_coordinates_GF2m
2000 Point compression for binary fields is disabled by default for
2001 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2004 As binary polynomials are represented as BIGNUMs, various members
2005 of the EC_GROUP and EC_POINT data structures can be shared
2006 between the implementations for prime fields and binary fields;
2007 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2008 are essentially identical to their ..._GFp counterparts.
2009 (For simplicity, the '..._GFp' prefix has been dropped from
2010 various internal method names.)
2012 An internal 'field_div' method (similar to 'field_mul' and
2013 'field_sqr') has been added; this is used only for binary fields.
2015 [Sheueling Chang Shantz and Douglas Stebila
2016 (Sun Microsystems Laboratories)]
2018 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2019 through methods ('mul', 'precompute_mult').
2021 The generic implementations (now internally called 'ec_wNAF_mul'
2022 and 'ec_wNAF_precomputed_mult') remain the default if these
2023 methods are undefined.
2025 [Sheueling Chang Shantz and Douglas Stebila
2026 (Sun Microsystems Laboratories)]
2028 *) New function EC_GROUP_get_degree, which is defined through
2029 EC_METHOD. For curves over prime fields, this returns the bit
2030 length of the modulus.
2032 [Sheueling Chang Shantz and Douglas Stebila
2033 (Sun Microsystems Laboratories)]
2035 *) New functions EC_GROUP_dup, EC_POINT_dup.
2036 (These simply call ..._new and ..._copy).
2038 [Sheueling Chang Shantz and Douglas Stebila
2039 (Sun Microsystems Laboratories)]
2041 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2042 Polynomials are represented as BIGNUMs (where the sign bit is not
2043 used) in the following functions [macros]:
2046 BN_GF2m_sub [= BN_GF2m_add]
2047 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2048 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2049 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2051 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2052 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2053 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2054 BN_GF2m_cmp [= BN_ucmp]
2056 (Note that only the 'mod' functions are actually for fields GF(2^m).
2057 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2059 For some functions, an the irreducible polynomial defining a
2060 field can be given as an 'unsigned int[]' with strictly
2061 decreasing elements giving the indices of those bits that are set;
2062 i.e., p[] represents the polynomial
2063 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2065 p[0] > p[1] > ... > p[k] = 0.
2066 This applies to the following functions:
2071 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2072 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2074 BN_GF2m_mod_sqrt_arr
2075 BN_GF2m_mod_solve_quad_arr
2079 Conversion can be performed by the following functions:
2084 bntest.c has additional tests for binary polynomial arithmetic.
2086 Two implementations for BN_GF2m_mod_div() are available.
2087 The default algorithm simply uses BN_GF2m_mod_inv() and
2088 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2089 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2090 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2092 [Sheueling Chang Shantz and Douglas Stebila
2093 (Sun Microsystems Laboratories)]
2095 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2096 functionality is disabled at compile-time.
2097 [Douglas Stebila <douglas.stebila@sun.com>]
2099 *) Change default behaviour of 'openssl asn1parse' so that more
2100 information is visible when viewing, e.g., a certificate:
2102 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2103 mode the content of non-printable OCTET STRINGs is output in a
2104 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2105 avoid the appearance of a printable string.
2106 [Nils Larsch <nla@trustcenter.de>]
2108 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2110 EC_GROUP_set_asn1_flag()
2111 EC_GROUP_get_asn1_flag()
2112 EC_GROUP_set_point_conversion_form()
2113 EC_GROUP_get_point_conversion_form()
2114 These control ASN1 encoding details:
2115 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2116 has been set to OPENSSL_EC_NAMED_CURVE.
2117 - Points are encoded in uncompressed form by default; options for
2118 asn1_for are as for point2oct, namely
2119 POINT_CONVERSION_COMPRESSED
2120 POINT_CONVERSION_UNCOMPRESSED
2121 POINT_CONVERSION_HYBRID
2123 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2126 EC_GROUP_get0_seed()
2127 EC_GROUP_get_seed_len()
2128 This is used only for ASN1 purposes (so far).
2129 [Nils Larsch <nla@trustcenter.de>]
2131 *) Add 'field_type' member to EC_METHOD, which holds the NID
2132 of the appropriate field type OID. The new function
2133 EC_METHOD_get_field_type() returns this value.
2134 [Nils Larsch <nla@trustcenter.de>]
2139 EC_POINT_point2hex()
2140 EC_POINT_hex2point()
2141 providing useful interfaces to EC_POINT_point2oct() and
2142 EC_POINT_oct2point().
2143 [Nils Larsch <nla@trustcenter.de>]
2145 *) Change internals of the EC library so that the functions
2146 EC_GROUP_set_generator()
2147 EC_GROUP_get_generator()
2148 EC_GROUP_get_order()
2149 EC_GROUP_get_cofactor()
2150 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2151 to methods, which would lead to unnecessary code duplication when
2152 adding different types of curves.
2153 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2155 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2156 arithmetic, and such that modified wNAFs are generated
2157 (which avoid length expansion in many cases).
2160 *) Add a function EC_GROUP_check_discriminant() (defined via
2161 EC_METHOD) that verifies that the curve discriminant is non-zero.
2163 Add a function EC_GROUP_check() that makes some sanity tests
2164 on a EC_GROUP, its generator and order. This includes
2165 EC_GROUP_check_discriminant().
2166 [Nils Larsch <nla@trustcenter.de>]
2168 *) Add ECDSA in new directory crypto/ecdsa/.
2170 Add applications 'openssl ecparam' and 'openssl ecdsa'
2171 (these are based on 'openssl dsaparam' and 'openssl dsa').
2173 ECDSA support is also included in various other files across the
2174 library. Most notably,
2175 - 'openssl req' now has a '-newkey ecdsa:file' option;
2176 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2177 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2178 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2179 them suitable for ECDSA where domain parameters must be
2180 extracted before the specific public key;
2181 - ECDSA engine support has been added.
2182 [Nils Larsch <nla@trustcenter.de>]
2184 *) Include some named elliptic curves, and add OIDs from X9.62,
2185 SECG, and WAP/WTLS. Each curve can be obtained from the new
2187 EC_GROUP_new_by_curve_name(),
2188 and the list of available named curves can be obtained with
2189 EC_get_builtin_curves().
2190 Also add a 'curve_name' member to EC_GROUP objects, which can be
2192 EC_GROUP_set_curve_name()
2193 EC_GROUP_get_curve_name()
2194 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2196 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2197 was actually never needed) and in BN_mul(). The removal in BN_mul()
2198 required a small change in bn_mul_part_recursive() and the addition
2199 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2200 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2201 bn_sub_words() and bn_add_words() except they take arrays with
2205 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
2207 *) In the SSL/TLS server implementation, be strict about session ID
2208 context matching (which matters if an application uses a single
2209 external cache for different purposes). Previously,
2210 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2211 set. This did ensure strict client verification, but meant that,
2212 with applications using a single external cache for quite
2213 different requirements, clients could circumvent ciphersuite
2214 restrictions for a given session ID context by starting a session
2215 in a different context.
2218 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2220 *) Cleanse PEM buffers before freeing them since they may contain
2222 [Benjamin Bennett <ben@psc.edu>]
2224 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2225 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2226 authentication-only ciphersuites.
2229 *) Since AES128 and AES256 share a single mask bit in the logic of
2230 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2231 kludge to work properly if AES128 is available and AES256 isn't.
2234 *) Expand security boundary to match 1.1.1 module.
2237 *) Remove redundant features: hash file source, editing of test vectors
2238 modify fipsld to use external fips_premain.c signature.
2241 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2242 run algorithm test programs.
2245 *) Make algorithm test programs more tolerant of whitespace.
2248 *) Have SSL/TLS server implementation tolerate "mismatched" record
2249 protocol version while receiving ClientHello even if the
2250 ClientHello is fragmented. (The server can't insist on the
2251 particular protocol version it has chosen before the ServerHello
2252 message has informed the client about his choice.)
2255 *) Load error codes if they are not already present instead of using a
2256 static variable. This allows them to be cleanly unloaded and reloaded.
2259 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2261 *) Introduce limits to prevent malicious keys being able to
2262 cause a denial of service. (CVE-2006-2940)
2263 [Steve Henson, Bodo Moeller]
2265 *) Fix ASN.1 parsing of certain invalid structures that can result
2266 in a denial of service. (CVE-2006-2937) [Steve Henson]
2268 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2269 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2271 *) Fix SSL client code which could crash if connecting to a
2272 malicious SSLv2 server. (CVE-2006-4343)
2273 [Tavis Ormandy and Will Drewry, Google Security Team]
2275 *) Change ciphersuite string processing so that an explicit
2276 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2277 will no longer include "AES128-SHA"), and any other similar
2278 ciphersuite (same bitmap) from *other* protocol versions (so that
2279 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2280 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2281 changes from 0.9.8b and 0.9.8d.
2284 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2286 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2287 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2289 *) Change the Unix randomness entropy gathering to use poll() when
2290 possible instead of select(), since the latter has some
2291 undesirable limitations.
2292 [Darryl Miles via Richard Levitte and Bodo Moeller]
2294 *) Disable rogue ciphersuites:
2296 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2297 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2298 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2300 The latter two were purportedly from
2301 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2304 Also deactive the remaining ciphersuites from
2305 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2306 unofficial, and the ID has long expired.
2309 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2310 dual-core machines) and other potential thread-safety issues.
2313 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2315 *) Adapt fipsld and the build system to link against the validated FIPS
2316 module in FIPS mode.
2319 *) Fixes for VC++ 2005 build under Windows.
2322 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2323 from a Windows bash shell such as MSYS. It is autodetected from the
2324 "config" script when run from a VC++ environment. Modify standard VC++
2325 build to use fipscanister.o from the GNU make build.
2328 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2330 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2331 The value now differs depending on if you build for FIPS or not.
2332 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2333 safely run with a non-FIPSed libcrypto, as it may crash because of
2334 the difference induced by this change.
2337 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2339 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2340 (part of SSL_OP_ALL). This option used to disable the
2341 countermeasure against man-in-the-middle protocol-version
2342 rollback in the SSL 2.0 server implementation, which is a bad
2343 idea. (CVE-2005-2969)
2345 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2346 for Information Security, National Institute of Advanced Industrial
2347 Science and Technology [AIST], Japan)]
2349 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2350 mainly for FIPS compliance and not fully integrated at this stage.
2353 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2354 the exponentiation using a fixed-length exponent. (Otherwise,
2355 the information leaked through timing could expose the secret key
2356 after many signatures; cf. Bleichenbacher's attack on DSA with
2360 *) Make a new fixed-window mod_exp implementation the default for
2361 RSA, DSA, and DH private-key operations so that the sequence of
2362 squares and multiplies and the memory access pattern are
2363 independent of the particular secret key. This will mitigate
2364 cache-timing and potential related attacks.
2366 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2367 and this is automatically used by BN_mod_exp_mont() if the new flag
2368 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2369 will use this BN flag for private exponents unless the flag
2370 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2371 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2373 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2375 *) Change the client implementation for SSLv23_method() and
2376 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2377 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2378 (Previously, the SSL 2.0 backwards compatible Client Hello
2379 message format would be used even with SSL_OP_NO_SSLv2.)
2382 *) Add support for smime-type MIME parameter in S/MIME messages which some
2386 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2387 a threadsafe manner. Modify rsa code to use new function and add calls
2388 to dsa and dh code (which had race conditions before).
2391 *) Include the fixed error library code in the C error file definitions
2392 instead of fixing them up at runtime. This keeps the error code
2393 structures constant.
2396 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2398 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2401 *) Fixes for newer kerberos headers. NB: the casts are needed because
2402 the 'length' field is signed on one version and unsigned on another
2403 with no (?) obvious way to tell the difference, without these VC++
2404 complains. Also the "definition" of FAR (blank) is no longer included
2405 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2406 some needed definitions.
2409 *) Undo Cygwin change.
2412 *) Added support for proxy certificates according to RFC 3820.
2413 Because they may be a security thread to unaware applications,
2414 they must be explicitely allowed in run-time. See
2415 docs/HOWTO/proxy_certificates.txt for further information.
2418 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2420 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2421 server and client random values. Previously
2422 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2423 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2425 This change has negligible security impact because:
2427 1. Server and client random values still have 24 bytes of pseudo random
2430 2. Server and client random values are sent in the clear in the initial
2433 3. The master secret is derived using the premaster secret (48 bytes in
2434 size for static RSA ciphersuites) as well as client server and random
2437 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2440 [Stephen Henson, reported by UK NISCC]
2442 *) Use Windows randomness collection on Cygwin.
2445 *) Fix hang in EGD/PRNGD query when communication socket is closed
2446 prematurely by EGD/PRNGD.
2447 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2449 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2452 *) Back-port of selected performance improvements from development
2453 branch, as well as improved support for PowerPC platforms.
2456 *) Add lots of checks for memory allocation failure, error codes to indicate
2457 failure and freeing up memory if a failure occurs.
2458 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2460 *) Add new -passin argument to dgst.
2463 *) Perform some character comparisons of different types in X509_NAME_cmp:
2464 this is needed for some certificates that reencode DNs into UTF8Strings
2465 (in violation of RFC3280) and can't or wont issue name rollover
2469 *) Make an explicit check during certificate validation to see that
2470 the CA setting in each certificate on the chain is correct. As a
2471 side effect always do the following basic checks on extensions,
2472 not just when there's an associated purpose to the check:
2474 - if there is an unhandled critical extension (unless the user
2475 has chosen to ignore this fault)
2476 - if the path length has been exceeded (if one is set at all)
2477 - that certain extensions fit the associated purpose (if one has
2481 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2483 *) Avoid a race condition when CRLs are checked in a multi threaded
2484 environment. This would happen due to the reordering of the revoked
2485 entries during signature checking and serial number lookup. Now the
2486 encoding is cached and the serial number sort performed under a lock.
2487 Add new STACK function sk_is_sorted().
2490 *) Add Delta CRL to the extension code.
2493 *) Various fixes to s3_pkt.c so alerts are sent properly.
2494 [David Holmes <d.holmes@f5.com>]
2496 *) Reduce the chances of duplicate issuer name and serial numbers (in
2497 violation of RFC3280) using the OpenSSL certificate creation utilities.
2498 This is done by creating a random 64 bit value for the initial serial
2499 number when a serial number file is created or when a self signed
2500 certificate is created using 'openssl req -x509'. The initial serial
2501 number file is created using 'openssl x509 -next_serial' in CA.pl
2502 rather than being initialized to 1.
2505 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2507 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2508 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2509 [Joe Orton, Steve Henson]
2511 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2513 [Joe Orton, Steve Henson]
2515 *) Make it possible to have multiple active certificates with the same
2516 subject in the CA index file. This is done only if the keyword
2517 'unique_subject' is set to 'no' in the main CA section (default
2518 if 'CA_default') of the configuration file. The value is saved
2519 with the database itself in a separate index attribute file,
2520 named like the index file with '.attr' appended to the name.
2523 *) X509 verify fixes. Disable broken certificate workarounds when
2524 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2525 keyUsage extension present. Don't accept CRLs with unhandled critical
2526 extensions: since verify currently doesn't process CRL extensions this
2527 rejects a CRL with *any* critical extensions. Add new verify error codes
2531 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2532 A clarification of RFC2560 will require the use of OCTET STRINGs and
2533 some implementations cannot handle the current raw format. Since OpenSSL
2534 copies and compares OCSP nonces as opaque blobs without any attempt at
2535 parsing them this should not create any compatibility issues.
2538 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2539 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2540 this HMAC (and other) operations are several times slower than OpenSSL
2544 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2545 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2547 *) Use the correct content when signing type "other".
2550 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2552 *) Fix various bugs revealed by running the NISCC test suite:
2554 Stop out of bounds reads in the ASN1 code when presented with
2555 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2557 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2559 If verify callback ignores invalid public key errors don't try to check
2560 certificate signature with the NULL public key.
2564 *) New -ignore_err option in ocsp application to stop the server
2565 exiting on the first error in a request.
2568 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2569 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2573 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2574 extra data after the compression methods not only for TLS 1.0
2575 but also for SSL 3.0 (as required by the specification).
2576 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2578 *) Change X509_certificate_type() to mark the key as exported/exportable
2579 when it's 512 *bits* long, not 512 bytes.
2582 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2583 blocks during encryption.
2586 *) Various fixes to base64 BIO and non blocking I/O. On write
2587 flushes were not handled properly if the BIO retried. On read
2588 data was not being buffered properly and had various logic bugs.
2589 This also affects blocking I/O when the data being decoded is a
2593 *) Various S/MIME bugfixes and compatibility changes:
2594 output correct application/pkcs7 MIME type if
2595 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2596 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2597 of files as .eml work). Correctly handle very long lines in MIME
2601 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2603 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2604 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2605 a protocol version number mismatch like a decryption error
2606 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2609 *) Turn on RSA blinding by default in the default implementation
2610 to avoid a timing attack. Applications that don't want it can call
2611 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2612 They would be ill-advised to do so in most cases.
2613 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2615 *) Change RSA blinding code so that it works when the PRNG is not
2616 seeded (in this case, the secret RSA exponent is abused as
2617 an unpredictable seed -- if it is not unpredictable, there
2618 is no point in blinding anyway). Make RSA blinding thread-safe
2619 by remembering the creator's thread ID in rsa->blinding and
2620 having all other threads use local one-time blinding factors
2621 (this requires more computation than sharing rsa->blinding, but
2622 avoids excessive locking; and if an RSA object is not shared
2623 between threads, blinding will still be very fast).
2626 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2627 ENGINE as defaults for all supported algorithms irrespective of
2628 the 'flags' parameter. 'flags' is now honoured, so applications
2629 should make sure they are passing it correctly.
2632 *) Target "mingw" now allows native Windows code to be generated in
2633 the Cygwin environment as well as with the MinGW compiler.
2636 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2638 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2639 via timing by performing a MAC computation even if incorrrect
2640 block cipher padding has been found. This is a countermeasure
2641 against active attacks where the attacker has to distinguish
2642 between bad padding and a MAC verification error. (CVE-2003-0078)
2644 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2645 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2646 Martin Vuagnoux (EPFL, Ilion)]
2648 *) Make the no-err option work as intended. The intention with no-err
2649 is not to have the whole error stack handling routines removed from
2650 libcrypto, it's only intended to remove all the function name and
2651 reason texts, thereby removing some of the footprint that may not
2652 be interesting if those errors aren't displayed anyway.
2654 NOTE: it's still possible for any application or module to have it's
2655 own set of error texts inserted. The routines are there, just not
2656 used by default when no-err is given.
2659 *) Add support for FreeBSD on IA64.
2660 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2662 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2663 Kerberos function mit_des_cbc_cksum(). Before this change,
2664 the value returned by DES_cbc_cksum() was like the one from
2665 mit_des_cbc_cksum(), except the bytes were swapped.
2666 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2668 *) Allow an application to disable the automatic SSL chain building.
2669 Before this a rather primitive chain build was always performed in
2670 ssl3_output_cert_chain(): an application had no way to send the
2671 correct chain if the automatic operation produced an incorrect result.
2673 Now the chain builder is disabled if either:
2675 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2677 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2679 The reasoning behind this is that an application would not want the
2680 auto chain building to take place if extra chain certificates are
2681 present and it might also want a means of sending no additional
2682 certificates (for example the chain has two certificates and the
2686 *) Add the possibility to build without the ENGINE framework.
2687 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2689 *) Under Win32 gmtime() can return NULL: check return value in
2690 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2693 *) DSA routines: under certain error conditions uninitialized BN objects
2694 could be freed. Solution: make sure initialization is performed early
2695 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2696 Nils Larsch <nla@trustcenter.de> via PR#459)
2699 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2700 checked on reconnect on the client side, therefore session resumption
2701 could still fail with a "ssl session id is different" error. This
2702 behaviour is masked when SSL_OP_ALL is used due to
2703 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2704 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2705 followup to PR #377.
2708 *) IA-32 assembler support enhancements: unified ELF targets, support
2709 for SCO/Caldera platforms, fix for Cygwin shared build.
2712 *) Add support for FreeBSD on sparc64. As a consequence, support for
2713 FreeBSD on non-x86 processors is separate from x86 processors on
2714 the config script, much like the NetBSD support.
2715 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2717 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2719 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2722 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2723 code (06) was taken as the first octet of the session ID and the last
2724 octet was ignored consequently. As a result SSLv2 client side session
2725 caching could not have worked due to the session ID mismatch between
2727 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2731 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2732 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2736 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2737 seems that in spite of existing for more than a year, many application
2738 author have done nothing to provide the necessary callbacks, which
2739 means that this particular engine will not work properly anywhere.
2740 This is a very unfortunate situation which forces us, in the name
2741 of usability, to give the hw_ncipher.c a static lock, which is part
2743 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2744 appear in 0.9.8 or later. We EXPECT application authors to have
2745 dealt properly with this when 0.9.8 is released (unless we actually
2746 make such changes in the libcrypto locking code that changes will
2747 have to be made anyway).
2750 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2751 octets have been read, EOF or an error occurs. Without this change
2752 some truncated ASN1 structures will not produce an error.
2755 *) Disable Heimdal support, since it hasn't been fully implemented.
2756 Still give the possibility to force the use of Heimdal, but with
2757 warnings and a request that patches get sent to openssl-dev.
2760 *) Add the VC-CE target, introduce the WINCE sysname, and add
2761 INSTALL.WCE and appropriate conditionals to make it build.
2762 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2764 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2765 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2766 edit numbers of the version.
2767 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2769 *) Introduce safe string copy and catenation functions
2770 (BUF_strlcpy() and BUF_strlcat()).
2771 [Ben Laurie (CHATS) and Richard Levitte]
2773 *) Avoid using fixed-size buffers for one-line DNs.
2774 [Ben Laurie (CHATS)]
2776 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2777 resizing buffers containing secrets, and use where appropriate.
2778 [Ben Laurie (CHATS)]
2780 *) Avoid using fixed size buffers for configuration file location.
2781 [Ben Laurie (CHATS)]
2783 *) Avoid filename truncation for various CA files.
2784 [Ben Laurie (CHATS)]
2786 *) Use sizeof in preference to magic numbers.
2787 [Ben Laurie (CHATS)]
2789 *) Avoid filename truncation in cert requests.
2790 [Ben Laurie (CHATS)]
2792 *) Add assertions to check for (supposedly impossible) buffer
2794 [Ben Laurie (CHATS)]
2796 *) Don't cache truncated DNS entries in the local cache (this could
2797 potentially lead to a spoofing attack).
2798 [Ben Laurie (CHATS)]
2800 *) Fix various buffers to be large enough for hex/decimal
2801 representations in a platform independent manner.
2802 [Ben Laurie (CHATS)]
2804 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2805 resizing buffers containing secrets, and use where appropriate.
2806 [Ben Laurie (CHATS)]
2808 *) Add BIO_indent() to avoid much slightly worrying code to do
2810 [Ben Laurie (CHATS)]
2812 *) Convert sprintf()/BIO_puts() to BIO_printf().
2813 [Ben Laurie (CHATS)]
2815 *) buffer_gets() could terminate with the buffer only half
2817 [Ben Laurie (CHATS)]
2819 *) Add assertions to prevent user-supplied crypto functions from
2820 overflowing internal buffers by having large block sizes, etc.
2821 [Ben Laurie (CHATS)]
2823 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2825 [Ben Laurie (CHATS)]
2827 *) Eliminate unused copy of key in RC4.
2828 [Ben Laurie (CHATS)]
2830 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2831 [Ben Laurie (CHATS)]
2833 *) Fix off-by-one error in EGD path.
2834 [Ben Laurie (CHATS)]
2836 *) If RANDFILE path is too long, ignore instead of truncating.
2837 [Ben Laurie (CHATS)]
2839 *) Eliminate unused and incorrectly sized X.509 structure
2841 [Ben Laurie (CHATS)]
2843 *) Eliminate unused and dangerous function knumber().
2844 [Ben Laurie (CHATS)]
2846 *) Eliminate unused and dangerous structure, KSSL_ERR.
2847 [Ben Laurie (CHATS)]
2849 *) Protect against overlong session ID context length in an encoded
2850 session object. Since these are local, this does not appear to be
2852 [Ben Laurie (CHATS)]
2854 *) Change from security patch (see 0.9.6e below) that did not affect
2855 the 0.9.6 release series:
2857 Remote buffer overflow in SSL3 protocol - an attacker could
2858 supply an oversized master key in Kerberos-enabled versions.
2860 [Ben Laurie (CHATS)]
2862 *) Change the SSL kerb5 codes to match RFC 2712.
2865 *) Make -nameopt work fully for req and add -reqopt switch.
2866 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2868 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2869 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2871 *) Make sure tests can be performed even if the corresponding algorithms
2872 have been removed entirely. This was also the last step to make
2873 OpenSSL compilable with DJGPP under all reasonable conditions.
2874 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2876 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2877 to allow version independent disabling of normally unselected ciphers,
2878 which may be activated as a side-effect of selecting a single cipher.
2880 (E.g., cipher list string "RSA" enables ciphersuites that are left
2881 out of "ALL" because they do not provide symmetric encryption.
2882 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2883 [Lutz Jaenicke, Bodo Moeller]
2885 *) Add appropriate support for separate platform-dependent build
2886 directories. The recommended way to make a platform-dependent
2887 build directory is the following (tested on Linux), maybe with
2890 # Place yourself outside of the OpenSSL source tree. In
2891 # this example, the environment variable OPENSSL_SOURCE
2892 # is assumed to contain the absolute OpenSSL source directory.
2893 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2894 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2895 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2896 mkdir -p `dirname $F`
2897 ln -s $OPENSSL_SOURCE/$F $F
2900 To be absolutely sure not to disturb the source tree, a "make clean"
2901 is a good thing. If it isn't successfull, don't worry about it,
2902 it probably means the source directory is very clean.
2905 *) Make sure any ENGINE control commands make local copies of string
2906 pointers passed to them whenever necessary. Otherwise it is possible
2907 the caller may have overwritten (or deallocated) the original string
2908 data when a later ENGINE operation tries to use the stored values.
2909 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2911 *) Improve diagnostics in file reading and command-line digests.
2912 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2914 *) Add AES modes CFB and OFB to the object database. Correct an
2915 error in AES-CFB decryption.
2918 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2919 allows existing EVP_CIPHER_CTX structures to be reused after
2920 calling EVP_*Final(). This behaviour is used by encryption
2921 BIOs and some applications. This has the side effect that
2922 applications must explicitly clean up cipher contexts with
2923 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2926 *) Check the values of dna and dnb in bn_mul_recursive before calling
2927 bn_mul_comba (a non zero value means the a or b arrays do not contain
2928 n2 elements) and fallback to bn_mul_normal if either is not zero.
2931 *) Fix escaping of non-ASCII characters when using the -subj option
2932 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2935 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2936 form for "surname", serialNumber has no short form.
2937 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2938 therefore remove "mail" short name for "internet 7".
2939 The OID for unique identifiers in X509 certificates is
2940 x500UniqueIdentifier, not uniqueIdentifier.
2941 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2944 *) Add an "init" command to the ENGINE config module and auto initialize
2945 ENGINEs. Without any "init" command the ENGINE will be initialized
2946 after all ctrl commands have been executed on it. If init=1 the
2947 ENGINE is initailized at that point (ctrls before that point are run
2948 on the uninitialized ENGINE and after on the initialized one). If
2949 init=0 then the ENGINE will not be iniatialized at all.
2952 *) Fix the 'app_verify_callback' interface so that the user-defined
2953 argument is actually passed to the callback: In the
2954 SSL_CTX_set_cert_verify_callback() prototype, the callback
2955 declaration has been changed from
2958 int (*cb)(X509_STORE_CTX *,void *);
2959 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2960 i=s->ctx->app_verify_callback(&ctx)
2961 has been changed into
2962 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2964 To update applications using SSL_CTX_set_cert_verify_callback(),
2965 a dummy argument can be added to their callback functions.
2966 [D. K. Smetters <smetters@parc.xerox.com>]
2968 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2969 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2971 *) Add and OPENSSL_LOAD_CONF define which will cause
2972 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2973 This allows older applications to transparently support certain
2974 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2975 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2976 load the config file and OPENSSL_add_all_algorithms_conf() which will
2977 always load it have also been added.
2980 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2981 Adjust NIDs and EVP layer.
2982 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2984 *) Config modules support in openssl utility.
2986 Most commands now load modules from the config file,
2987 though in a few (such as version) this isn't done
2988 because it couldn't be used for anything.
2990 In the case of ca and req the config file used is
2991 the same as the utility itself: that is the -config
2992 command line option can be used to specify an
2996 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2997 use "openssl_conf" if filename is NULL use default openssl config file.
3000 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3001 config section name. Add a new flag to tolerate a missing config file
3002 and move code to CONF_modules_load_file().
3005 *) Support for crypto accelerator cards from Accelerated Encryption
3006 Processing, www.aep.ie. (Use engine 'aep')
3007 The support was copied from 0.9.6c [engine] and adapted/corrected
3008 to work with the new engine framework.
3009 [AEP Inc. and Richard Levitte]
3011 *) Support for SureWare crypto accelerator cards from Baltimore
3012 Technologies. (Use engine 'sureware')
3013 The support was copied from 0.9.6c [engine] and adapted
3014 to work with the new engine framework.
3017 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3018 make the newer ENGINE framework commands for the CHIL engine work.
3019 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3021 *) Make it possible to produce shared libraries on ReliantUNIX.
3022 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3024 *) Add the configuration target debug-linux-ppro.
3025 Make 'openssl rsa' use the general key loading routines
3026 implemented in apps.c, and make those routines able to
3027 handle the key format FORMAT_NETSCAPE and the variant
3029 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3031 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3032 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3034 *) Add -keyform to rsautl, and document -engine.
3035 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3037 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3038 BIO_R_NO_SUCH_FILE error code rather than the generic
3039 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3042 *) Add new functions
3044 ERR_peek_last_error_line
3045 ERR_peek_last_error_line_data.
3046 These are similar to
3049 ERR_peek_error_line_data,
3050 but report on the latest error recorded rather than the first one
3051 still in the error queue.
3052 [Ben Laurie, Bodo Moeller]
3054 *) default_algorithms option in ENGINE config module. This allows things
3056 default_algorithms = ALL
3057 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3060 *) Prelminary ENGINE config module.
3063 *) New experimental application configuration code.
3066 *) Change the AES code to follow the same name structure as all other
3067 symmetric ciphers, and behave the same way. Move everything to
3068 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3069 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3071 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3072 [Ben Laurie and Theo de Raadt]
3074 *) Add option to output public keys in req command.
3075 [Massimiliano Pala madwolf@openca.org]
3077 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3078 (up to about 10% better than before for P-192 and P-224).
3081 *) New functions/macros
3083 SSL_CTX_set_msg_callback(ctx, cb)
3084 SSL_CTX_set_msg_callback_arg(ctx, arg)
3085 SSL_set_msg_callback(ssl, cb)
3086 SSL_set_msg_callback_arg(ssl, arg)
3088 to request calling a callback function
3090 void cb(int write_p, int version, int content_type,
3091 const void *buf, size_t len, SSL *ssl, void *arg)
3093 whenever a protocol message has been completely received
3094 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3095 protocol version according to which the SSL library interprets
3096 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3097 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3098 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3099 specification (change_cipher_spec(20), alert(21), handshake(22)).
3100 'buf' and 'len' point to the actual message, 'ssl' to the
3101 SSL object, and 'arg' is the application-defined value set by
3102 SSL[_CTX]_set_msg_callback_arg().
3104 'openssl s_client' and 'openssl s_server' have new '-msg' options
3105 to enable a callback that displays all protocol messages.
3108 *) Change the shared library support so shared libraries are built as
3109 soon as the corresponding static library is finished, and thereby get
3110 openssl and the test programs linked against the shared library.
3111 This still only happens when the keyword "shard" has been given to
3112 the configuration scripts.
3114 NOTE: shared library support is still an experimental thing, and
3115 backward binary compatibility is still not guaranteed.
3116 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3118 *) Add support for Subject Information Access extension.
3119 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3121 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3122 additional bytes when new memory had to be allocated, not just
3123 when reusing an existing buffer.
3126 *) New command line and configuration option 'utf8' for the req command.
3127 This allows field values to be specified as UTF8 strings.
3130 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3131 runs for the former and machine-readable output for the latter.
3134 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3135 of the e-mail address in the DN (i.e., it will go into a certificate
3136 extension only). The new configuration file option 'email_in_dn = no'
3137 has the same effect.
3138 [Massimiliano Pala madwolf@openca.org]
3140 *) Change all functions with names starting with des_ to be starting
3141 with DES_ instead. Add wrappers that are compatible with libdes,
3142 but are named _ossl_old_des_*. Finally, add macros that map the
3143 des_* symbols to the corresponding _ossl_old_des_* if libdes
3144 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3145 desired, the des_* symbols will be mapped to DES_*, with one
3148 Since we provide two compatibility mappings, the user needs to
3149 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3150 compatibility is desired. The default (i.e., when that macro
3151 isn't defined) is OpenSSL 0.9.6c compatibility.
3153 There are also macros that enable and disable the support of old
3154 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3155 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3156 are defined, the default will apply: to support the old des routines.
3158 In either case, one must include openssl/des.h to get the correct
3159 definitions. Do not try to just include openssl/des_old.h, that
3162 NOTE: This is a major break of an old API into a new one. Software
3163 authors are encouraged to switch to the DES_ style functions. Some
3164 time in the future, des_old.h and the libdes compatibility functions
3165 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3166 default), and then completely removed.
3169 *) Test for certificates which contain unsupported critical extensions.
3170 If such a certificate is found during a verify operation it is
3171 rejected by default: this behaviour can be overridden by either
3172 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3173 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3174 X509_supported_extension() has also been added which returns 1 if a
3175 particular extension is supported.
3178 *) Modify the behaviour of EVP cipher functions in similar way to digests
3179 to retain compatibility with existing code.
3182 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3183 compatibility with existing code. In particular the 'ctx' parameter does
3184 not have to be to be initialized before the call to EVP_DigestInit() and
3185 it is tidied up after a call to EVP_DigestFinal(). New function
3186 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3187 EVP_MD_CTX_copy() changed to not require the destination to be
3188 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3189 requires the destination to be valid.
3191 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3192 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3195 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3196 so that complete 'Handshake' protocol structures are kept in memory
3197 instead of overwriting 'msg_type' and 'length' with 'body' data.
3200 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3201 [Massimo Santin via Richard Levitte]
3203 *) Major restructuring to the underlying ENGINE code. This includes
3204 reduction of linker bloat, separation of pure "ENGINE" manipulation
3205 (initialisation, etc) from functionality dealing with implementations
3206 of specific crypto iterfaces. This change also introduces integrated
3207 support for symmetric ciphers and digest implementations - so ENGINEs
3208 can now accelerate these by providing EVP_CIPHER and EVP_MD
3209 implementations of their own. This is detailed in crypto/engine/README
3210 as it couldn't be adequately described here. However, there are a few
3211 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3212 were changed in the original introduction of ENGINE code have now
3213 reverted back - the hooking from this code to ENGINE is now a good
3214 deal more passive and at run-time, operations deal directly with
3215 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3216 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3217 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3218 they were not being used by the framework as there is no concept of a
3219 BIGNUM_METHOD and they could not be generalised to the new
3220 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3221 ENGINE_cpy() has been removed as it cannot be consistently defined in
3225 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3228 *) Change mkdef.pl to sort symbols that get the same entry number,
3229 and make sure the automatically generated functions ERR_load_*
3230 become part of libeay.num as well.
3233 *) New function SSL_renegotiate_pending(). This returns true once
3234 renegotiation has been requested (either SSL_renegotiate() call
3235 or HelloRequest/ClientHello receveived from the peer) and becomes
3236 false once a handshake has been completed.
3237 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3238 sends a HelloRequest, but does not ensure that a handshake takes
3239 place. SSL_renegotiate_pending() is useful for checking if the
3240 client has followed the request.)
3243 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3244 By default, clients may request session resumption even during
3245 renegotiation (if session ID contexts permit); with this option,
3246 session resumption is possible only in the first handshake.
3248 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3249 more bits available for options that should not be part of
3250 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3253 *) Add some demos for certificate and certificate request creation.
3256 *) Make maximum certificate chain size accepted from the peer application
3257 settable (SSL*_get/set_max_cert_list()), as proposed by
3258 "Douglas E. Engert" <deengert@anl.gov>.
3261 *) Add support for shared libraries for Unixware-7
3262 (Boyd Lynn Gerber <gerberb@zenez.com>).
3265 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3266 be done prior to destruction. Use this to unload error strings from
3267 ENGINEs that load their own error strings. NB: This adds two new API
3268 functions to "get" and "set" this destroy handler in an ENGINE.
3271 *) Alter all existing ENGINE implementations (except "openssl" and
3272 "openbsd") to dynamically instantiate their own error strings. This
3273 makes them more flexible to be built both as statically-linked ENGINEs
3274 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3275 Also, add stub code to each that makes building them as self-contained
3276 shared-libraries easier (see README.ENGINE).
3279 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3280 implementations into applications that are completely implemented in
3281 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3282 commands that can be used to configure what shared-library to load and
3283 to control aspects of the way it is handled. Also, made an update to
3284 the README.ENGINE file that brings its information up-to-date and
3285 provides some information and instructions on the "dynamic" ENGINE
3286 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3289 *) Make it possible to unload ranges of ERR strings with a new
3290 "ERR_unload_strings" function.
3293 *) Add a copy() function to EVP_MD.
3296 *) Make EVP_MD routines take a context pointer instead of just the
3297 md_data void pointer.
3300 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3301 that the digest can only process a single chunk of data
3302 (typically because it is provided by a piece of
3303 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3304 is only going to provide a single chunk of data, and hence the
3305 framework needn't accumulate the data for oneshot drivers.
3308 *) As with "ERR", make it possible to replace the underlying "ex_data"
3309 functions. This change also alters the storage and management of global
3310 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3311 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3312 index counters. The API functions that use this state have been changed
3313 to take a "class_index" rather than pointers to the class's local STACK
3314 and counter, and there is now an API function to dynamically create new
3315 classes. This centralisation allows us to (a) plug a lot of the
3316 thread-safety problems that existed, and (b) makes it possible to clean
3317 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3318 such data would previously have always leaked in application code and
3319 workarounds were in place to make the memory debugging turn a blind eye
3320 to it. Application code that doesn't use this new function will still
3321 leak as before, but their memory debugging output will announce it now
3322 rather than letting it slide.
3324 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3325 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3326 has a return value to indicate success or failure.
3329 *) Make it possible to replace the underlying "ERR" functions such that the
3330 global state (2 LHASH tables and 2 locks) is only used by the "default"
3331 implementation. This change also adds two functions to "get" and "set"
3332 the implementation prior to it being automatically set the first time
3333 any other ERR function takes place. Ie. an application can call "get",
3334 pass the return value to a module it has just loaded, and that module
3335 can call its own "set" function using that value. This means the
3336 module's "ERR" operations will use (and modify) the error state in the
3337 application and not in its own statically linked copy of OpenSSL code.
3340 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3341 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3342 the operation, and provides a more encapsulated way for external code
3343 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3344 to use these functions rather than manually incrementing the counts.
3346 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3349 *) Add EVP test program.
3352 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3355 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3356 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3357 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3358 These allow a CRL to be built without having to access X509_CRL fields
3359 directly. Modify 'ca' application to use new functions.
3362 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3363 bug workarounds. Rollback attack detection is a security feature.
3364 The problem will only arise on OpenSSL servers when TLSv1 is not
3365 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3366 Software authors not wanting to support TLSv1 will have special reasons
3367 for their choice and can explicitly enable this option.
3368 [Bodo Moeller, Lutz Jaenicke]
3370 *) Rationalise EVP so it can be extended: don't include a union of
3371 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3372 (similar to those existing for EVP_CIPHER_CTX).
3377 EVP_MD_CTX_init(&md); /* new function call */
3378 EVP_DigestInit(&md, EVP_sha1());
3379 EVP_DigestUpdate(&md, in, len);
3380 EVP_DigestFinal(&md, out, NULL);
3381 EVP_MD_CTX_cleanup(&md); /* new function call */
3385 *) Make DES key schedule conform to the usual scheme, as well as
3386 correcting its structure. This means that calls to DES functions
3387 now have to pass a pointer to a des_key_schedule instead of a
3388 plain des_key_schedule (which was actually always a pointer
3391 des_key_schedule ks;
3393 des_set_key_checked(..., &ks);
3394 des_ncbc_encrypt(..., &ks, ...);
3396 (Note that a later change renames 'des_...' into 'DES_...'.)
3399 *) Initial reduction of linker bloat: the use of some functions, such as
3400 PEM causes large amounts of unused functions to be linked in due to
3401 poor organisation. For example pem_all.c contains every PEM function
3402 which has a knock on effect of linking in large amounts of (unused)
3403 ASN1 code. Grouping together similar functions and splitting unrelated
3404 functions prevents this.
3407 *) Cleanup of EVP macros.
3410 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3411 correct _ecb suffix.
3414 *) Add initial OCSP responder support to ocsp application. The
3415 revocation information is handled using the text based index
3416 use by the ca application. The responder can either handle
3417 requests generated internally, supplied in files (for example
3418 via a CGI script) or using an internal minimal server.
3421 *) Add configuration choices to get zlib compression for TLS.
3424 *) Changes to Kerberos SSL for RFC 2712 compliance:
3425 1. Implemented real KerberosWrapper, instead of just using
3426 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3427 2. Implemented optional authenticator field of KerberosWrapper.
3429 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3430 and authenticator structs; see crypto/krb5/.
3432 Generalized Kerberos calls to support multiple Kerberos libraries.
3433 [Vern Staats <staatsvr@asc.hpc.mil>,
3434 Jeffrey Altman <jaltman@columbia.edu>
3435 via Richard Levitte]
3437 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3438 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3439 values for each of the key sizes rather than having just
3440 parameters (and 'speed' generating keys each time).
3443 *) Speed up EVP routines.
3446 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3447 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3448 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3449 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3451 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3452 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3453 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3456 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3458 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3461 *) Added the OS2-EMX target.
3462 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3464 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3465 to support NCONF routines in extension code. New function CONF_set_nconf()
3466 to allow functions which take an NCONF to also handle the old LHASH
3467 structure: this means that the old CONF compatible routines can be
3468 retained (in particular wrt extensions) without having to duplicate the
3469 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3472 *) Enhance the general user interface with mechanisms for inner control
3473 and with possibilities to have yes/no kind of prompts.
3476 *) Change all calls to low level digest routines in the library and
3477 applications to use EVP. Add missing calls to HMAC_cleanup() and
3478 don't assume HMAC_CTX can be copied using memcpy().
3479 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3481 *) Add the possibility to control engines through control names but with
3482 arbitrary arguments instead of just a string.
3483 Change the key loaders to take a UI_METHOD instead of a callback
3484 function pointer. NOTE: this breaks binary compatibility with earlier
3485 versions of OpenSSL [engine].
3486 Adapt the nCipher code for these new conditions and add a card insertion
3490 *) Enhance the general user interface with mechanisms to better support
3491 dialog box interfaces, application-defined prompts, the possibility
3492 to use defaults (for example default passwords from somewhere else)
3493 and interrupts/cancellations.
3496 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3497 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3500 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3501 tidy up some unnecessarily weird code in 'sk_new()').
3502 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3504 *) Change the key loading routines for ENGINEs to use the same kind
3505 callback (pem_password_cb) as all other routines that need this
3509 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3510 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3511 than this minimum value is recommended.
3514 *) New random seeder for OpenVMS, using the system process statistics
3515 that are easily reachable.
3518 *) Windows apparently can't transparently handle global
3519 variables defined in DLLs. Initialisations such as:
3521 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3523 wont compile. This is used by the any applications that need to
3524 declare their own ASN1 modules. This was fixed by adding the option
3525 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3526 needed for static libraries under Win32.
3529 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3530 setting of purpose and trust fields. New X509_STORE trust and
3531 purpose functions and tidy up setting in other SSL functions.
3534 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3535 structure. These are inherited by X509_STORE_CTX when it is
3536 initialised. This allows various defaults to be set in the
3537 X509_STORE structure (such as flags for CRL checking and custom
3538 purpose or trust settings) for functions which only use X509_STORE_CTX
3539 internally such as S/MIME.
3541 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3542 trust settings if they are not set in X509_STORE. This allows X509_STORE
3543 purposes and trust (in S/MIME for example) to override any set by default.
3545 Add command line options for CRL checking to smime, s_client and s_server
3549 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3550 are set then the CRL is looked up in the X509_STORE structure and
3551 its validity and signature checked, then if the certificate is found
3552 in the CRL the verify fails with a revoked error.
3554 Various new CRL related callbacks added to X509_STORE_CTX structure.
3556 Command line options added to 'verify' application to support this.
3558 This needs some additional work, such as being able to handle multiple
3559 CRLs with different times, extension based lookup (rather than just
3560 by subject name) and ultimately more complete V2 CRL extension
3564 *) Add a general user interface API (crypto/ui/). This is designed
3565 to replace things like des_read_password and friends (backward
3566 compatibility functions using this new API are provided).
3567 The purpose is to remove prompting functions from the DES code
3568 section as well as provide for prompting through dialog boxes in
3569 a window system and the like.
3572 *) Add "ex_data" support to ENGINE so implementations can add state at a
3573 per-structure level rather than having to store it globally.
3576 *) Make it possible for ENGINE structures to be copied when retrieved by
3577 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3578 This causes the "original" ENGINE structure to act like a template,
3579 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3580 operational state can be localised to each ENGINE structure, despite the
3581 fact they all share the same "methods". New ENGINE structures returned in
3582 this case have no functional references and the return value is the single
3583 structural reference. This matches the single structural reference returned
3584 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3588 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3589 needs to match any other type at all we need to manually clear the
3593 *) Changes to the "openssl engine" utility to include;
3594 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3595 about an ENGINE's available control commands.
3596 - executing control commands from command line arguments using the
3597 '-pre' and '-post' switches. '-post' is only used if '-t' is
3598 specified and the ENGINE is successfully initialised. The syntax for
3599 the individual commands are colon-separated, for example;
3600 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3603 *) New dynamic control command support for ENGINEs. ENGINEs can now
3604 declare their own commands (numbers), names (strings), descriptions,
3605 and input types for run-time discovery by calling applications. A
3606 subset of these commands are implicitly classed as "executable"
3607 depending on their input type, and only these can be invoked through
3608 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3609 can be based on user input, config files, etc). The distinction is
3610 that "executable" commands cannot return anything other than a boolean
3611 result and can only support numeric or string input, whereas some
3612 discoverable commands may only be for direct use through
3613 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3614 pointers, or other custom uses. The "executable" commands are to
3615 support parameterisations of ENGINE behaviour that can be
3616 unambiguously defined by ENGINEs and used consistently across any
3617 OpenSSL-based application. Commands have been added to all the
3618 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3619 control over shared-library paths without source code alterations.
3622 *) Changed all ENGINE implementations to dynamically allocate their
3623 ENGINEs rather than declaring them statically. Apart from this being
3624 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3625 this also allows the implementations to compile without using the
3626 internal engine_int.h header.
3629 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3630 'const' value. Any code that should be able to modify a RAND_METHOD
3631 should already have non-const pointers to it (ie. they should only
3632 modify their own ones).
3635 *) Made a variety of little tweaks to the ENGINE code.
3636 - "atalla" and "ubsec" string definitions were moved from header files
3637 to C code. "nuron" string definitions were placed in variables
3638 rather than hard-coded - allowing parameterisation of these values
3639 later on via ctrl() commands.
3640 - Removed unused "#if 0"'d code.
3641 - Fixed engine list iteration code so it uses ENGINE_free() to release
3642 structural references.
3643 - Constified the RAND_METHOD element of ENGINE structures.
3644 - Constified various get/set functions as appropriate and added
3645 missing functions (including a catch-all ENGINE_cpy that duplicates
3646 all ENGINE values onto a new ENGINE except reference counts/state).
3647 - Removed NULL parameter checks in get/set functions. Setting a method
3648 or function to NULL is a way of cancelling out a previously set
3649 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3650 and doesn't justify the extra error symbols and code.
3651 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3652 flags from engine_int.h to engine.h.
3653 - Changed prototypes for ENGINE handler functions (init(), finish(),
3654 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3657 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3658 to the algorithm using long division. The binary algorithm can be
3659 used only if the modulus is odd. On 32-bit systems, it is faster
3660 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3661 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3662 up to 450 bits. In 64-bit environments, the binary algorithm
3663 appears to be advantageous for much longer moduli; here we use it
3664 for moduli up to 2048 bits.
3667 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3668 could not support the combine flag in choice fields.
3671 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3672 extensions from a certificate request to the certificate.
3675 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3676 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3677 file: this allows the display of the certificate about to be
3678 signed to be customised, to allow certain fields to be included
3679 or excluded and extension details. The old system didn't display
3680 multicharacter strings properly, omitted fields not in the policy
3681 and couldn't display additional details such as extensions.
3684 *) Function EC_POINTs_mul for multiple scalar multiplication
3685 of an arbitrary number of elliptic curve points
3686 \sum scalars[i]*points[i],
3687 optionally including the generator defined for the EC_GROUP:
3688 scalar*generator + \sum scalars[i]*points[i].
3690 EC_POINT_mul is a simple wrapper function for the typical case
3691 that the point list has just one item (besides the optional
3695 *) First EC_METHODs for curves over GF(p):
3697 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3698 operations and provides various method functions that can also
3699 operate with faster implementations of modular arithmetic.
3701 EC_GFp_mont_method() reuses most functions that are part of
3702 EC_GFp_simple_method, but uses Montgomery arithmetic.
3704 [Bodo Moeller; point addition and point doubling
3705 implementation directly derived from source code provided by
3706 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3708 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3709 crypto/ec/ec_lib.c):
3711 Curves are EC_GROUP objects (with an optional group generator)
3712 based on EC_METHODs that are built into the library.
3714 Points are EC_POINT objects based on EC_GROUP objects.
3716 Most of the framework would be able to handle curves over arbitrary
3717 finite fields, but as there are no obvious types for fields other
3718 than GF(p), some functions are limited to that for now.
3721 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3722 that the file contains a complete HTTP response.
3725 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3726 change the def and num file printf format specifier from "%-40sXXX"
3727 to "%-39s XXX". The latter will always guarantee a space after the
3728 field while the former will cause them to run together if the field
3729 is 40 of more characters long.
3732 *) Constify the cipher and digest 'method' functions and structures
3733 and modify related functions to take constant EVP_MD and EVP_CIPHER
3737 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3738 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3741 *) Modify EVP_Digest*() routines so they now return values. Although the
3742 internal software routines can never fail additional hardware versions
3746 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3748 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3749 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3752 ERR_R_NESTED_ASN1_ERROR
3754 ERR_R_MISSING_ASN1_EOS
3755 were 4 .. 9, conflicting with
3756 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3758 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3759 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3761 Add new error code 'ERR_R_INTERNAL_ERROR'.
3764 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3768 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3769 sets the subject name for a new request or supersedes the
3770 subject name in a given request. Formats that can be parsed are
3771 'CN=Some Name, OU=myOU, C=IT'
3773 'CN=Some Name/OU=myOU/C=IT'.
3775 Add options '-batch' and '-verbose' to 'openssl req'.
3776 [Massimiliano Pala <madwolf@hackmasters.net>]
3778 *) Introduce the possibility to access global variables through
3779 functions on platform were that's the best way to handle exporting
3780 global variables in shared libraries. To enable this functionality,
3781 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3782 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3783 is normally done by Configure or something similar).
3785 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3786 in the source file (foo.c) like this:
3788 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3789 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3791 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3792 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3794 OPENSSL_DECLARE_GLOBAL(int,foo);
3795 #define foo OPENSSL_GLOBAL_REF(foo)
3796 OPENSSL_DECLARE_GLOBAL(double,bar);
3797 #define bar OPENSSL_GLOBAL_REF(bar)
3799 The #defines are very important, and therefore so is including the
3800 header file everywhere where the defined globals are used.
3802 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3803 of ASN.1 items, but that structure is a bit different.
3805 The largest change is in util/mkdef.pl which has been enhanced with
3806 better and easier to understand logic to choose which symbols should
3807 go into the Windows .def files as well as a number of fixes and code
3808 cleanup (among others, algorithm keywords are now sorted
3809 lexicographically to avoid constant rewrites).
3812 *) In BN_div() keep a copy of the sign of 'num' before writing the
3813 result to 'rm' because if rm==num the value will be overwritten
3814 and produce the wrong result if 'num' is negative: this caused
3815 problems with BN_mod() and BN_nnmod().
3818 *) Function OCSP_request_verify(). This checks the signature on an
3819 OCSP request and verifies the signer certificate. The signer
3820 certificate is just checked for a generic purpose and OCSP request
3824 *) Add OCSP_check_validity() function to check the validity of OCSP
3825 responses. OCSP responses are prepared in real time and may only
3826 be a few seconds old. Simply checking that the current time lies
3827 between thisUpdate and nextUpdate max reject otherwise valid responses
3828 caused by either OCSP responder or client clock inaccuracy. Instead
3829 we allow thisUpdate and nextUpdate to fall within a certain period of
3830 the current time. The age of the response can also optionally be
3831 checked. Two new options -validity_period and -status_age added to
3835 *) If signature or public key algorithm is unrecognized print out its
3836 OID rather that just UNKNOWN.
3839 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3840 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3841 ID to be generated from the issuer certificate alone which can then be
3842 passed to OCSP_id_issuer_cmp().
3845 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3846 ASN1 modules to export functions returning ASN1_ITEM pointers
3847 instead of the ASN1_ITEM structures themselves. This adds several
3848 new macros which allow the underlying ASN1 function/structure to
3849 be accessed transparently. As a result code should not use ASN1_ITEM
3850 references directly (such as &X509_it) but instead use the relevant
3851 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3852 use of the new ASN1 code on platforms where exporting structures
3853 is problematical (for example in shared libraries) but exporting
3854 functions returning pointers to structures is not.
3857 *) Add support for overriding the generation of SSL/TLS session IDs.
3858 These callbacks can be registered either in an SSL_CTX or per SSL.
3859 The purpose of this is to allow applications to control, if they wish,
3860 the arbitrary values chosen for use as session IDs, particularly as it
3861 can be useful for session caching in multiple-server environments. A
3862 command-line switch for testing this (and any client code that wishes
3863 to use such a feature) has been added to "s_server".
3864 [Geoff Thorpe, Lutz Jaenicke]
3866 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3867 of the form '#if defined(...) || defined(...) || ...' and
3868 '#if !defined(...) && !defined(...) && ...'. This also avoids
3869 the growing number of special cases it was previously handling.
3872 *) Make all configuration macros available for application by making
3873 sure they are available in opensslconf.h, by giving them names starting
3874 with "OPENSSL_" to avoid conflicts with other packages and by making
3875 sure e_os2.h will cover all platform-specific cases together with
3877 Additionally, it is now possible to define configuration/platform-
3878 specific names (called "system identities"). In the C code, these
3879 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3880 macro with the name beginning with "OPENSSL_SYS_", which is determined
3881 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3885 *) New option -set_serial to 'req' and 'x509' this allows the serial
3886 number to use to be specified on the command line. Previously self
3887 signed certificates were hard coded with serial number 0 and the
3888 CA options of 'x509' had to use a serial number in a file which was
3892 *) New options to 'ca' utility to support V2 CRL entry extensions.
3893 Currently CRL reason, invalidity date and hold instruction are
3894 supported. Add new CRL extensions to V3 code and some new objects.
3897 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3898 disable standard block padding (aka PKCS#5 padding) in the EVP
3899 API, which was previously mandatory. This means that the data is
3900 not padded in any way and so the total length much be a multiple
3901 of the block size, otherwise an error occurs.
3904 *) Initial (incomplete) OCSP SSL support.
3907 *) New function OCSP_parse_url(). This splits up a URL into its host,
3908 port and path components: primarily to parse OCSP URLs. New -url
3909 option to ocsp utility.
3912 *) New nonce behavior. The return value of OCSP_check_nonce() now
3913 reflects the various checks performed. Applications can decide
3914 whether to tolerate certain situations such as an absent nonce
3915 in a response when one was present in a request: the ocsp application
3916 just prints out a warning. New function OCSP_add1_basic_nonce()
3917 this is to allow responders to include a nonce in a response even if
3918 the request is nonce-less.
3921 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3922 skipped when using openssl x509 multiple times on a single input file,
3923 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3926 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3927 set string type: to handle setting ASN1_TIME structures. Fix ca
3928 utility to correctly initialize revocation date of CRLs.
3931 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3932 the clients preferred ciphersuites and rather use its own preferences.
3933 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3934 Internet Explorer by ensuring unchanged hash method during stepup.
3935 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3938 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3939 to aes and add a new 'exist' option to print out symbols that don't
3943 *) Additional options to ocsp utility to allow flags to be set and
3944 additional certificates supplied.
3947 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3948 OCSP client a number of certificate to only verify the response
3952 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3953 handle the new API. Currently only ECB, CBC modes supported. Add new
3956 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3957 Encryption Standard (AES) Ciphersuites for Transport Layer
3958 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3959 not enabled by default and were not part of the "ALL" ciphersuite
3960 alias because they were not yet official; they could be
3961 explicitly requested by specifying the "AESdraft" ciphersuite
3962 group alias. In the final release of OpenSSL 0.9.7, the group
3963 alias is called "AES" and is part of "ALL".)
3964 [Ben Laurie, Steve Henson, Bodo Moeller]
3966 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3967 request to response.
3970 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3971 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3972 extract information from a certificate request. OCSP_response_create()
3973 creates a response and optionally adds a basic response structure.
3974 OCSP_basic_add1_status() adds a complete single response to a basic
3975 response and returns the OCSP_SINGLERESP structure just added (to allow
3976 extensions to be included for example). OCSP_basic_add1_cert() adds a
3977 certificate to a basic response and OCSP_basic_sign() signs a basic
3978 response with various flags. New helper functions ASN1_TIME_check()
3979 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3980 (converts ASN1_TIME to GeneralizedTime).
3983 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3984 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3985 structure from a certificate. X509_pubkey_digest() digests the public_key
3986 contents: this is used in various key identifiers.
3989 *) Make sk_sort() tolerate a NULL argument.
3990 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3992 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3993 passed by the function are trusted implicitly. If any of them signed the
3994 response then it is assumed to be valid and is not verified.
3997 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3998 to data. This was previously part of the PKCS7 ASN1 code. This
3999 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4000 [Steve Henson, reported by Kenneth R. Robinette
4001 <support@securenetterm.com>]
4003 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4004 routines: without these tracing memory leaks is very painful.
4005 Fix leaks in PKCS12 and PKCS7 routines.
4008 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4009 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4010 effectively meant GeneralizedTime would never be used. Now it
4011 is initialised to -1 but X509_time_adj() now has to check the value
4012 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4013 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4014 [Steve Henson, reported by Kenneth R. Robinette
4015 <support@securenetterm.com>]
4017 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4018 result in a zero length in the ASN1_INTEGER structure which was
4019 not consistent with the structure when d2i_ASN1_INTEGER() was used
4020 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4021 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4022 where it did not print out a minus for negative ASN1_INTEGER.
4025 *) Add summary printout to ocsp utility. The various functions which
4026 convert status values to strings have been renamed to:
4027 OCSP_response_status_str(), OCSP_cert_status_str() and
4028 OCSP_crl_reason_str() and are no longer static. New options
4029 to verify nonce values and to disable verification. OCSP response
4030 printout format cleaned up.
4033 *) Add additional OCSP certificate checks. These are those specified
4034 in RFC2560. This consists of two separate checks: the CA of the
4035 certificate being checked must either be the OCSP signer certificate
4036 or the issuer of the OCSP signer certificate. In the latter case the
4037 OCSP signer certificate must contain the OCSP signing extended key
4038 usage. This check is performed by attempting to match the OCSP
4039 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4040 in the OCSP_CERTID structures of the response.
4043 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4044 and related routines. This uses the standard OpenSSL certificate
4045 verify routines to perform initial checks (just CA validity) and
4046 to obtain the certificate chain. Then additional checks will be
4047 performed on the chain. Currently the root CA is checked to see
4048 if it is explicitly trusted for OCSP signing. This is used to set
4049 a root CA as a global signing root: that is any certificate that
4050 chains to that CA is an acceptable OCSP signing certificate.
4053 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4054 extensions from a separate configuration file.
4055 As when reading extensions from the main configuration file,
4056 the '-extensions ...' option may be used for specifying the
4058 [Massimiliano Pala <madwolf@comune.modena.it>]
4060 *) New OCSP utility. Allows OCSP requests to be generated or
4061 read. The request can be sent to a responder and the output
4062 parsed, outputed or printed in text form. Not complete yet:
4063 still needs to check the OCSP response validity.
4066 *) New subcommands for 'openssl ca':
4067 'openssl ca -status <serial>' prints the status of the cert with
4068 the given serial number (according to the index file).
4069 'openssl ca -updatedb' updates the expiry status of certificates
4071 [Massimiliano Pala <madwolf@comune.modena.it>]
4073 *) New '-newreq-nodes' command option to CA.pl. This is like
4074 '-newreq', but calls 'openssl req' with the '-nodes' option
4075 so that the resulting key is not encrypted.
4076 [Damien Miller <djm@mindrot.org>]
4078 *) New configuration for the GNU Hurd.
4079 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4081 *) Initial code to implement OCSP basic response verify. This
4082 is currently incomplete. Currently just finds the signer's
4083 certificate and verifies the signature on the response.
4086 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4087 value of OPENSSLDIR. This is available via the new '-d' option
4088 to 'openssl version', and is also included in 'openssl version -a'.
4091 *) Allowing defining memory allocation callbacks that will be given
4092 file name and line number information in additional arguments
4093 (a const char* and an int). The basic functionality remains, as
4094 well as the original possibility to just replace malloc(),
4095 realloc() and free() by functions that do not know about these
4096 additional arguments. To register and find out the current
4097 settings for extended allocation functions, the following
4098 functions are provided:
4100 CRYPTO_set_mem_ex_functions
4101 CRYPTO_set_locked_mem_ex_functions
4102 CRYPTO_get_mem_ex_functions
4103 CRYPTO_get_locked_mem_ex_functions
4105 These work the same way as CRYPTO_set_mem_functions and friends.
4106 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4107 extended allocation function is enabled.
4108 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4109 a conventional allocation function is enabled.
4110 [Richard Levitte, Bodo Moeller]
4112 *) Finish off removing the remaining LHASH function pointer casts.
4113 There should no longer be any prototype-casting required when using
4114 the LHASH abstraction, and any casts that remain are "bugs". See
4115 the callback types and macros at the head of lhash.h for details
4116 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4119 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4120 If /dev/[u]random devices are not available or do not return enough
4121 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4123 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4124 /etc/entropy will be queried once each in this sequence, quering stops
4125 when enough entropy was collected without querying more sockets.
4128 *) Change the Unix RAND_poll() variant to be able to poll several
4129 random devices, as specified by DEVRANDOM, until a sufficient amount
4130 of data has been collected. We spend at most 10 ms on each file
4131 (select timeout) and read in non-blocking mode. DEVRANDOM now
4132 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4133 (previously it was just the string "/dev/urandom"), so on typical
4134 platforms the 10 ms delay will never occur.
4135 Also separate out the Unix variant to its own file, rand_unix.c.
4136 For VMS, there's a currently-empty rand_vms.c.
4139 *) Move OCSP client related routines to ocsp_cl.c. These
4140 provide utility functions which an application needing
4141 to issue a request to an OCSP responder and analyse the
4142 response will typically need: as opposed to those which an
4143 OCSP responder itself would need which will be added later.
4145 OCSP_request_sign() signs an OCSP request with an API similar
4146 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4147 response. OCSP_response_get1_basic() extracts basic response
4148 from response. OCSP_resp_find_status(): finds and extracts status
4149 information from an OCSP_CERTID structure (which will be created
4150 when the request structure is built). These are built from lower
4151 level functions which work on OCSP_SINGLERESP structures but
4152 wont normally be used unless the application wishes to examine
4153 extensions in the OCSP response for example.
4155 Replace nonce routines with a pair of functions.
4156 OCSP_request_add1_nonce() adds a nonce value and optionally
4157 generates a random value. OCSP_check_nonce() checks the
4158 validity of the nonce in an OCSP response.
4161 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4162 This doesn't copy the supplied OCSP_CERTID and avoids the
4163 need to free up the newly created id. Change return type
4164 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4165 This can then be used to add extensions to the request.
4166 Deleted OCSP_request_new(), since most of its functionality
4167 is now in OCSP_REQUEST_new() (and the case insensitive name
4168 clash) apart from the ability to set the request name which
4169 will be added elsewhere.
4172 *) Update OCSP API. Remove obsolete extensions argument from
4173 various functions. Extensions are now handled using the new
4174 OCSP extension code. New simple OCSP HTTP function which
4175 can be used to send requests and parse the response.
4178 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4179 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4180 uses the special reorder version of SET OF to sort the attributes
4181 and reorder them to match the encoded order. This resolves a long
4182 standing problem: a verify on a PKCS7 structure just after signing
4183 it used to fail because the attribute order did not match the
4184 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4185 it uses the received order. This is necessary to tolerate some broken
4186 software that does not order SET OF. This is handled by encoding
4187 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4188 to produce the required SET OF.
4191 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4192 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4193 files to get correct declarations of the ASN.1 item variables.
4196 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4197 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4198 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4199 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4200 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4201 ASN1_ITEM and no wrapper functions.
4204 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4205 replace the old function pointer based I/O routines. Change most of
4206 the *_d2i_bio() and *_d2i_fp() functions to use these.
4209 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4210 lines, recognice more "algorithms" that can be deselected, and make
4211 it complain about algorithm deselection that isn't recognised.
4214 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4215 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4216 to use new functions. Add NO_ASN1_OLD which can be set to remove
4217 some old style ASN1 functions: this can be used to determine if old
4218 code will still work when these eventually go away.
4221 *) New extension functions for OCSP structures, these follow the
4222 same conventions as certificates and CRLs.
4225 *) New function X509V3_add1_i2d(). This automatically encodes and
4226 adds an extension. Its behaviour can be customised with various
4227 flags to append, replace or delete. Various wrappers added for
4228 certifcates and CRLs.
4231 *) Fix to avoid calling the underlying ASN1 print routine when
4232 an extension cannot be parsed. Correct a typo in the
4233 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4236 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4237 entries for variables.
4240 *) Add functionality to apps/openssl.c for detecting locking
4241 problems: As the program is single-threaded, all we have
4242 to do is register a locking callback using an array for
4243 storing which locks are currently held by the program.
4246 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4247 SSL_get_ex_data_X509_STORE_idx(), which is used in
4248 ssl_verify_cert_chain() and thus can be called at any time
4249 during TLS/SSL handshakes so that thread-safety is essential.
4250 Unfortunately, the ex_data design is not at all suited
4251 for multi-threaded use, so it probably should be abolished.
4254 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4255 [Broadcom, tweaked and integrated by Geoff Thorpe]
4257 *) Move common extension printing code to new function
4258 X509V3_print_extensions(). Reorganise OCSP print routines and
4259 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4262 *) New function X509_signature_print() to remove duplication in some
4266 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4267 set (this was treated exactly the same as SET OF previously). This
4268 is used to reorder the STACK representing the structure to match the
4269 encoding. This will be used to get round a problem where a PKCS7
4270 structure which was signed could not be verified because the STACK
4271 order did not reflect the encoded order.
4274 *) Reimplement the OCSP ASN1 module using the new code.
4277 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4278 for its ASN1 operations. The old style function pointers still exist
4279 for now but they will eventually go away.
4282 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4283 completely replaces the old ASN1 functionality with a table driven
4284 encoder and decoder which interprets an ASN1_ITEM structure describing
4285 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4286 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4287 has also been converted to the new form.
4290 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4291 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4292 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4293 for negative moduli.
4296 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4297 of not touching the result's sign bit.
4300 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4304 *) Changed the LHASH code to use prototypes for callbacks, and created
4305 macros to declare and implement thin (optionally static) functions
4306 that provide type-safety and avoid function pointer casting for the
4307 type-specific callbacks.
4310 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4312 [Veers Staats <staatsvr@asc.hpc.mil>,
4313 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4315 *) Reformat the FAQ so the different questions and answers can be divided
4316 in sections depending on the subject.
4319 *) Have the zlib compression code load ZLIB.DLL dynamically under
4323 *) New function BN_mod_sqrt for computing square roots modulo a prime
4324 (using the probabilistic Tonelli-Shanks algorithm unless
4325 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4326 be handled deterministically).
4327 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4329 *) Make BN_mod_inverse faster by explicitly handling small quotients
4330 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4331 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4334 *) New function BN_kronecker.
4337 *) Fix BN_gcd so that it works on negative inputs; the result is
4338 positive unless both parameters are zero.
4339 Previously something reasonably close to an infinite loop was
4340 possible because numbers could be growing instead of shrinking
4341 in the implementation of Euclid's algorithm.
4344 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4345 sign of the number in question.
4347 Fix BN_is_word(a,w) to work correctly for w == 0.
4349 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4350 because its test if the absolute value of 'a' equals 'w'.
4351 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4352 it exists mostly for use in the implementations of BN_is_zero(),
4353 BN_is_one(), and BN_is_word().
4356 *) New function BN_swap.
4359 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4360 the exponentiation functions are more likely to produce reasonable
4361 results on negative inputs.
4364 *) Change BN_mod_mul so that the result is always non-negative.
4365 Previously, it could be negative if one of the factors was negative;
4366 I don't think anyone really wanted that behaviour.
4369 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4370 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4371 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4372 and add new functions:
4381 BN_mod_lshift1_quick
4385 These functions always generate non-negative results.
4387 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4388 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4390 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4391 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4392 be reduced modulo m.
4393 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4396 The following entry accidentily appeared in the CHANGES file
4397 distributed with OpenSSL 0.9.7. The modifications described in
4398 it do *not* apply to OpenSSL 0.9.7.
4400 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4401 was actually never needed) and in BN_mul(). The removal in BN_mul()
4402 required a small change in bn_mul_part_recursive() and the addition
4403 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4404 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4405 bn_sub_words() and bn_add_words() except they take arrays with
4410 *) In 'openssl passwd', verify passwords read from the terminal
4411 unless the '-salt' option is used (which usually means that
4412 verification would just waste user's time since the resulting
4413 hash is going to be compared with some given password hash)
4414 or the new '-noverify' option is used.
4416 This is an incompatible change, but it does not affect
4417 non-interactive use of 'openssl passwd' (passwords on the command
4418 line, '-stdin' option, '-in ...' option) and thus should not
4422 *) Remove all references to RSAref, since there's no more need for it.
4425 *) Make DSO load along a path given through an environment variable
4426 (SHLIB_PATH) with shl_load().
4429 *) Constify the ENGINE code as a result of BIGNUM constification.
4430 Also constify the RSA code and most things related to it. In a
4431 few places, most notable in the depth of the ASN.1 code, ugly
4432 casts back to non-const were required (to be solved at a later
4436 *) Make it so the openssl application has all engines loaded by default.
4439 *) Constify the BIGNUM routines a little more.
4442 *) Add the following functions:
4444 ENGINE_load_cswift()
4446 ENGINE_load_atalla()
4448 ENGINE_load_builtin_engines()
4450 That way, an application can itself choose if external engines that
4451 are built-in in OpenSSL shall ever be used or not. The benefit is
4452 that applications won't have to be linked with libdl or other dso
4453 libraries unless it's really needed.
4455 Changed 'openssl engine' to load all engines on demand.
4456 Changed the engine header files to avoid the duplication of some
4457 declarations (they differed!).
4460 *) 'openssl engine' can now list capabilities.
4463 *) Better error reporting in 'openssl engine'.
4466 *) Never call load_dh_param(NULL) in s_server.
4469 *) Add engine application. It can currently list engines by name and
4470 identity, and test if they are actually available.
4473 *) Improve RPM specification file by forcing symbolic linking and making
4474 sure the installed documentation is also owned by root.root.
4475 [Damien Miller <djm@mindrot.org>]
4477 *) Give the OpenSSL applications more possibilities to make use of
4478 keys (public as well as private) handled by engines.
4481 *) Add OCSP code that comes from CertCo.
4484 *) Add VMS support for the Rijndael code.
4487 *) Added untested support for Nuron crypto accelerator.
4490 *) Add support for external cryptographic devices. This code was
4491 previously distributed separately as the "engine" branch.
4492 [Geoff Thorpe, Richard Levitte]
4494 *) Rework the filename-translation in the DSO code. It is now possible to
4495 have far greater control over how a "name" is turned into a filename
4496 depending on the operating environment and any oddities about the
4497 different shared library filenames on each system.
4500 *) Support threads on FreeBSD-elf in Configure.
4503 *) Fix for SHA1 assembly problem with MASM: it produces
4504 warnings about corrupt line number information when assembling
4505 with debugging information. This is caused by the overlapping
4507 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4510 NCONF_get_number() has no error checking at all. As a replacement,
4511 NCONF_get_number_e() is defined (_e for "error checking") and is
4512 promoted strongly. The old NCONF_get_number is kept around for
4513 binary backward compatibility.
4514 Make it possible for methods to load from something other than a BIO,
4515 by providing a function pointer that is given a name instead of a BIO.
4516 For example, this could be used to load configuration data from an
4520 *) Fix for non blocking accept BIOs. Added new I/O special reason
4521 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4522 with non blocking I/O was not possible because no retry code was
4523 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4527 *) Added the beginnings of Rijndael support.
4530 *) Fix for bug in DirectoryString mask setting. Add support for
4531 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4532 to allow certificate printing to more controllable, additional
4533 'certopt' option to 'x509' to allow new printing options to be
4537 *) Clean old EAY MD5 hack from e_os.h.
4540 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4542 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4543 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4544 [Joe Orton, Steve Henson]
4546 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4548 *) Fix additional bug revealed by the NISCC test suite:
4550 Stop bug triggering large recursion when presented with
4551 certain ASN.1 tags (CVE-2003-0851)
4554 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4556 *) Fix various bugs revealed by running the NISCC test suite:
4558 Stop out of bounds reads in the ASN1 code when presented with
4559 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4561 If verify callback ignores invalid public key errors don't try to check
4562 certificate signature with the NULL public key.
4566 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4567 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4571 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4572 extra data after the compression methods not only for TLS 1.0
4573 but also for SSL 3.0 (as required by the specification).
4574 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4576 *) Change X509_certificate_type() to mark the key as exported/exportable
4577 when it's 512 *bits* long, not 512 bytes.
4580 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4582 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4583 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4584 a protocol version number mismatch like a decryption error
4585 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4588 *) Turn on RSA blinding by default in the default implementation
4589 to avoid a timing attack. Applications that don't want it can call
4590 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4591 They would be ill-advised to do so in most cases.
4592 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4594 *) Change RSA blinding code so that it works when the PRNG is not
4595 seeded (in this case, the secret RSA exponent is abused as
4596 an unpredictable seed -- if it is not unpredictable, there
4597 is no point in blinding anyway). Make RSA blinding thread-safe
4598 by remembering the creator's thread ID in rsa->blinding and
4599 having all other threads use local one-time blinding factors
4600 (this requires more computation than sharing rsa->blinding, but
4601 avoids excessive locking; and if an RSA object is not shared
4602 between threads, blinding will still be very fast).
4605 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4607 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4608 via timing by performing a MAC computation even if incorrrect
4609 block cipher padding has been found. This is a countermeasure
4610 against active attacks where the attacker has to distinguish
4611 between bad padding and a MAC verification error. (CVE-2003-0078)
4613 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4614 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4615 Martin Vuagnoux (EPFL, Ilion)]
4617 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4619 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4620 memory from it's contents. This is done with a counter that will
4621 place alternating values in each byte. This can be used to solve
4622 two issues: 1) the removal of calls to memset() by highly optimizing
4623 compilers, and 2) cleansing with other values than 0, since those can
4624 be read through on certain media, for example a swap space on disk.
4627 *) Bugfix: client side session caching did not work with external caching,
4628 because the session->cipher setting was not restored when reloading
4629 from the external cache. This problem was masked, when
4630 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4631 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4634 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4635 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4636 [Zeev Lieber <zeev-l@yahoo.com>]
4638 *) Undo an undocumented change introduced in 0.9.6e which caused
4639 repeated calls to OpenSSL_add_all_ciphers() and
4640 OpenSSL_add_all_digests() to be ignored, even after calling
4644 *) Change the default configuration reader to deal with last line not
4645 being properly terminated.
4648 *) Change X509_NAME_cmp() so it applies the special rules on handling
4649 DN values that are of type PrintableString, as well as RDNs of type
4650 emailAddress where the value has the type ia5String.
4651 [stefank@valicert.com via Richard Levitte]
4653 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4654 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4655 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4656 the bitwise-OR of the two for use by the majority of applications
4657 wanting this behaviour, and update the docs. The documented
4658 behaviour and actual behaviour were inconsistent and had been
4659 changing anyway, so this is more a bug-fix than a behavioural
4661 [Geoff Thorpe, diagnosed by Nadav Har'El]
4663 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4664 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4667 *) Fix initialization code race conditions in
4668 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4669 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4670 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4671 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4672 ssl2_get_cipher_by_char(),
4673 ssl3_get_cipher_by_char().
4674 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4676 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4677 the cached sessions are flushed, as the remove_cb() might use ex_data
4678 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4679 (see [openssl.org #212]).
4680 [Geoff Thorpe, Lutz Jaenicke]
4682 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4683 length, instead of the encoding length to d2i_ASN1_OBJECT.
4686 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4688 *) [In 0.9.6g-engine release:]
4689 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4690 [Lynn Gazis <lgazis@rainbow.com>]
4692 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4694 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4695 and get fix the header length calculation.
4696 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4697 Alon Kantor <alonk@checkpoint.com> (and others),
4700 *) Use proper error handling instead of 'assertions' in buffer
4701 overflow checks added in 0.9.6e. This prevents DoS (the
4702 assertions could call abort()).
4703 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4705 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4707 *) Add various sanity checks to asn1_get_length() to reject
4708 the ASN1 length bytes if they exceed sizeof(long), will appear
4709 negative or the content length exceeds the length of the
4711 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4713 *) Fix cipher selection routines: ciphers without encryption had no flags
4714 for the cipher strength set and where therefore not handled correctly
4715 by the selection routines (PR #130).
4718 *) Fix EVP_dsa_sha macro.
4722 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4723 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4724 that was added in OpenSSL 0.9.6d.
4726 As the countermeasure turned out to be incompatible with some
4727 broken SSL implementations, the new option is part of SSL_OP_ALL.
4728 SSL_OP_ALL is usually employed when compatibility with weird SSL
4729 implementations is desired (e.g. '-bugs' option to 's_client' and
4730 's_server'), so the new option is automatically set in many
4734 *) Changes in security patch:
4736 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4737 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4738 Air Force Materiel Command, USAF, under agreement number
4741 *) Add various sanity checks to asn1_get_length() to reject
4742 the ASN1 length bytes if they exceed sizeof(long), will appear
4743 negative or the content length exceeds the length of the
4744 supplied buffer. (CVE-2002-0659)
4745 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4747 *) Assertions for various potential buffer overflows, not known to
4749 [Ben Laurie (CHATS)]
4751 *) Various temporary buffers to hold ASCII versions of integers were
4752 too small for 64 bit platforms. (CVE-2002-0655)
4753 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4755 *) Remote buffer overflow in SSL3 protocol - an attacker could
4756 supply an oversized session ID to a client. (CVE-2002-0656)
4757 [Ben Laurie (CHATS)]
4759 *) Remote buffer overflow in SSL2 protocol - an attacker could
4760 supply an oversized client master key. (CVE-2002-0656)
4761 [Ben Laurie (CHATS)]
4763 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4765 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4766 encoded as NULL) with id-dsa-with-sha1.
4767 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4769 *) Check various X509_...() return values in apps/req.c.
4770 [Nils Larsch <nla@trustcenter.de>]
4772 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4773 an end-of-file condition would erronously be flagged, when the CRLF
4774 was just at the end of a processed block. The bug was discovered when
4775 processing data through a buffering memory BIO handing the data to a
4776 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4777 <ptsekov@syntrex.com> and Nedelcho Stanev.
4780 *) Implement a countermeasure against a vulnerability recently found
4781 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4782 before application data chunks to avoid the use of known IVs
4783 with data potentially chosen by the attacker.
4786 *) Fix length checks in ssl3_get_client_hello().
4789 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4790 to prevent ssl3_read_internal() from incorrectly assuming that
4791 ssl3_read_bytes() found application data while handshake
4792 processing was enabled when in fact s->s3->in_read_app_data was
4793 merely automatically cleared during the initial handshake.
4794 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4796 *) Fix object definitions for Private and Enterprise: they were not
4797 recognized in their shortname (=lowercase) representation. Extend
4798 obj_dat.pl to issue an error when using undefined keywords instead
4799 of silently ignoring the problem (Svenning Sorensen
4800 <sss@sss.dnsalias.net>).
4803 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4804 generators, i.e. generators other than 2 and 5. (Previously, the
4805 code did not properly initialise the 'add' and 'rem' values to
4806 BN_generate_prime().)
4808 In the new general case, we do not insist that 'generator' is
4809 actually a primitive root: This requirement is rather pointless;
4810 a generator of the order-q subgroup is just as good, if not
4814 *) Map new X509 verification errors to alerts. Discovered and submitted by
4815 Tom Wu <tom@arcot.com>.
4818 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4819 returning non-zero before the data has been completely received
4820 when using non-blocking I/O.
4821 [Bodo Moeller; problem pointed out by John Hughes]
4823 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4824 [Ben Laurie, Lutz Jaenicke]
4826 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4827 Yoram Zahavi <YoramZ@gilian.com>).
4830 *) Add information about CygWin 1.3 and on, and preserve proper
4831 configuration for the versions before that.
4832 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4834 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4835 check whether we deal with a copy of a session and do not delete from
4836 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4837 <izhar@checkpoint.com>.
4840 *) Do not store session data into the internal session cache, if it
4841 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4842 flag is set). Proposed by Aslam <aslam@funk.com>.
4845 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4849 *) [In 0.9.6d-engine release:]
4850 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4851 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4853 *) Add the configuration target linux-s390x.
4854 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4856 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4857 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4858 variable as an indication that a ClientHello message has been
4859 received. As the flag value will be lost between multiple
4860 invocations of ssl3_accept when using non-blocking I/O, the
4861 function may not be aware that a handshake has actually taken
4862 place, thus preventing a new session from being added to the
4865 To avoid this problem, we now set s->new_session to 2 instead of
4866 using a local variable.
4867 [Lutz Jaenicke, Bodo Moeller]
4869 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4870 if the SSL_R_LENGTH_MISMATCH error is detected.
4871 [Geoff Thorpe, Bodo Moeller]
4873 *) New 'shared_ldflag' column in Configure platform table.
4876 *) Fix EVP_CIPHER_mode macro.
4877 ["Dan S. Camper" <dan@bti.net>]
4879 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4880 type, we must throw them away by setting rr->length to 0.
4881 [D P Chang <dpc@qualys.com>]
4883 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4885 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4886 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4887 worked incorrectly for those cases where range = 10..._2 and
4888 3*range is two bits longer than range.)
4891 *) Only add signing time to PKCS7 structures if it is not already
4895 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4896 OBJ_ld_ce should be OBJ_id_ce.
4897 Also some ip-pda OIDs in crypto/objects/objects.txt were
4898 incorrect (cf. RFC 3039).
4899 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4901 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4902 returns early because it has nothing to do.
4903 [Andy Schneider <andy.schneider@bjss.co.uk>]
4905 *) [In 0.9.6c-engine release:]
4906 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4907 [Andy Schneider <andy.schneider@bjss.co.uk>]
4909 *) [In 0.9.6c-engine release:]
4910 Add support for Cryptographic Appliance's keyserver technology.
4911 (Use engine 'keyclient')
4912 [Cryptographic Appliances and Geoff Thorpe]
4914 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4915 is called via tools/c89.sh because arguments have to be
4916 rearranged (all '-L' options must appear before the first object
4918 [Richard Shapiro <rshapiro@abinitio.com>]
4920 *) [In 0.9.6c-engine release:]
4921 Add support for Broadcom crypto accelerator cards, backported
4923 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4925 *) [In 0.9.6c-engine release:]
4926 Add support for SureWare crypto accelerator cards from
4927 Baltimore Technologies. (Use engine 'sureware')
4928 [Baltimore Technologies and Mark Cox]
4930 *) [In 0.9.6c-engine release:]
4931 Add support for crypto accelerator cards from Accelerated
4932 Encryption Processing, www.aep.ie. (Use engine 'aep')
4933 [AEP Inc. and Mark Cox]
4935 *) Add a configuration entry for gcc on UnixWare.
4936 [Gary Benson <gbenson@redhat.com>]
4938 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4939 messages are stored in a single piece (fixed-length part and
4940 variable-length part combined) and fix various bugs found on the way.
4943 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4944 instead. BIO_gethostbyname() does not know what timeouts are
4945 appropriate, so entries would stay in cache even when they have
4947 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4949 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4950 faced with a pathologically small ClientHello fragment that does
4951 not contain client_version: Instead of aborting with an error,
4952 simply choose the highest available protocol version (i.e.,
4953 TLS 1.0 unless it is disabled). In practice, ClientHello
4954 messages are never sent like this, but this change gives us
4955 strictly correct behaviour at least for TLS.
4958 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4959 never resets s->method to s->ctx->method when called from within
4960 one of the SSL handshake functions.
4961 [Bodo Moeller; problem pointed out by Niko Baric]
4963 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4964 (sent using the client's version number) if client_version is
4965 smaller than the protocol version in use. Also change
4966 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4967 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4968 the client will at least see that alert.
4971 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4975 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4976 client receives HelloRequest while in a handshake.
4977 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4979 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4980 should end in 'break', not 'goto end' which circuments various
4981 cleanups done in state SSL_ST_OK. But session related stuff
4982 must be disabled for SSL_ST_OK in the case that we just sent a
4985 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4986 before just sending a HelloRequest.
4987 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4989 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4990 reveal whether illegal block cipher padding was found or a MAC
4991 verification error occured. (Neither SSLerr() codes nor alerts
4992 are directly visible to potential attackers, but the information
4993 may leak via logfiles.)
4995 Similar changes are not required for the SSL 2.0 implementation
4996 because the number of padding bytes is sent in clear for SSL 2.0,
4997 and the extra bytes are just ignored. However ssl/s2_pkt.c
4998 failed to verify that the purported number of padding bytes is in
5002 *) Add OpenUNIX-8 support including shared libraries
5003 (Boyd Lynn Gerber <gerberb@zenez.com>).
5006 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5007 'wristwatch attack' using huge encoding parameters (cf.
5008 James H. Manger's CRYPTO 2001 paper). Note that the
5009 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5010 encoding parameters and hence was not vulnerable.
5013 *) BN_sqr() bug fix.
5014 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5016 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5017 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5018 followed by modular reduction.
5019 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5021 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5022 equivalent based on BN_pseudo_rand() instead of BN_rand().
5025 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5026 This function was broken, as the check for a new client hello message
5027 to handle SGC did not allow these large messages.
5028 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5031 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5034 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5035 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5038 *) Rework the configuration and shared library support for Tru64 Unix.
5039 The configuration part makes use of modern compiler features and
5040 still retains old compiler behavior for those that run older versions
5041 of the OS. The shared library support part includes a variant that
5042 uses the RPATH feature, and is available through the special
5043 configuration target "alpha-cc-rpath", which will never be selected
5045 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5047 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5048 with the same message size as in ssl3_get_certificate_request().
5049 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5050 messages might inadvertently be reject as too long.
5051 [Petr Lampa <lampa@fee.vutbr.cz>]
5053 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5056 *) Modified SSL library such that the verify_callback that has been set
5057 specificly for an SSL object with SSL_set_verify() is actually being
5058 used. Before the change, a verify_callback set with this function was
5059 ignored and the verify_callback() set in the SSL_CTX at the time of
5060 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5061 to allow the necessary settings.
5064 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5065 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5066 done automatically (in contradiction to the requirements of the C
5067 standard). This made problems when used from OpenSSH.
5070 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5071 dh->length and always used
5073 BN_rand_range(priv_key, dh->p).
5075 BN_rand_range() is not necessary for Diffie-Hellman, and this
5076 specific range makes Diffie-Hellman unnecessarily inefficient if
5077 dh->length (recommended exponent length) is much smaller than the
5078 length of dh->p. We could use BN_rand_range() if the order of
5079 the subgroup was stored in the DH structure, but we only have
5084 BN_rand(priv_key, l, ...)
5086 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5092 RSA_eay_public_encrypt
5093 RSA_eay_private_decrypt
5094 RSA_eay_private_encrypt (signing)
5095 RSA_eay_public_decrypt (signature verification)
5097 (default implementations for RSA_public_encrypt,
5098 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5099 always reject numbers >= n.
5102 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5103 to synchronize access to 'locking_thread'. This is necessary on
5104 systems where access to 'locking_thread' (an 'unsigned long'
5105 variable) is not atomic.
5108 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5109 *before* setting the 'crypto_lock_rand' flag. The previous code had
5110 a race condition if 0 is a valid thread ID.
5111 [Travis Vitek <vitek@roguewave.com>]
5113 *) Add support for shared libraries under Irix.
5114 [Albert Chin-A-Young <china@thewrittenword.com>]
5116 *) Add configuration option to build on Linux on both big-endian and
5118 [Ralf Baechle <ralf@uni-koblenz.de>]
5120 *) Add the possibility to create shared libraries on HP-UX.
5123 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5125 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5126 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5127 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5128 PRNG state recovery was possible based on the output of
5129 one PRNG request appropriately sized to gain knowledge on
5130 'md' followed by enough consecutive 1-byte PRNG requests
5131 to traverse all of 'state'.
5133 1. When updating 'md_local' (the current thread's copy of 'md')
5134 during PRNG output generation, hash all of the previous
5135 'md_local' value, not just the half used for PRNG output.
5137 2. Make the number of bytes from 'state' included into the hash
5138 independent from the number of PRNG bytes requested.
5140 The first measure alone would be sufficient to avoid
5141 Markku-Juhani's attack. (Actually it had never occurred
5142 to me that the half of 'md_local' used for chaining was the
5143 half from which PRNG output bytes were taken -- I had always
5144 assumed that the secret half would be used.) The second
5145 measure makes sure that additional data from 'state' is never
5146 mixed into 'md_local' in small portions; this heuristically
5147 further strengthens the PRNG.
5150 *) Fix crypto/bn/asm/mips3.s.
5153 *) When only the key is given to "enc", the IV is undefined. Print out
5154 an error message in this case.
5157 *) Handle special case when X509_NAME is empty in X509 printing routines.
5160 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5161 positive and less than q.
5164 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5165 used: it isn't thread safe and the add_lock_callback should handle
5167 [Paul Rose <Paul.Rose@bridge.com>]
5169 *) Verify that incoming data obeys the block size in
5170 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5174 [Ulf Möller, Bodo Möller]
5176 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5177 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5178 when fixing the server behaviour for backwards-compatible 'client
5179 hello' messages. (Note that the attack is impractical against
5180 SSL 3.0 and TLS 1.0 anyway because length and version checking
5181 means that the probability of guessing a valid ciphertext is
5182 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5185 Before 0.9.5, the countermeasure (hide the error by generating a
5186 random 'decryption result') did not work properly because
5187 ERR_clear_error() was missing, meaning that SSL_get_error() would
5188 detect the supposedly ignored error.
5190 Both problems are now fixed.
5193 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5194 (previously it was 1024).
5197 *) Fix for compatibility mode trust settings: ignore trust settings
5198 unless some valid trust or reject settings are present.
5201 *) Fix for blowfish EVP: its a variable length cipher.
5204 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5205 parameters in DSA public key structures and return an error in the
5206 DSA routines if parameters are absent.
5209 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5210 in the current directory if neither $RANDFILE nor $HOME was set.
5211 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5212 caused some confusion to Windows users who haven't defined $HOME.
5213 Thus RAND_file_name() is changed again: e_os.h can define a
5214 DEFAULT_HOME, which will be used if $HOME is not set.
5215 For Windows, we use "C:"; on other platforms, we still require
5216 environment variables.
5218 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5219 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5220 having multiple threads call RAND_poll() concurrently.
5223 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5224 combination of a flag and a thread ID variable.
5225 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5226 flag), *other* threads can enter ssleay_add_bytes without obeying
5227 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5228 that they do not hold after the first thread unsets add_do_not_lock).
5231 *) Change bctest again: '-x' expressions are not available in all
5235 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5237 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5238 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5240 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5241 the default extension for executables, if any. Also, make the perl
5242 scripts that use symlink() to test if it really exists and use "cp"
5243 if it doesn't. All this made OpenSSL compilable and installable in
5247 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5248 If SEQUENCE is length is indefinite just set c->slen to the total
5249 amount of data available.
5250 [Steve Henson, reported by shige@FreeBSD.org]
5251 [This change does not apply to 0.9.7.]
5253 *) Change bctest to avoid here-documents inside command substitution
5254 (workaround for FreeBSD /bin/sh bug).
5255 For compatibility with Ultrix, avoid shell functions (introduced
5256 in the bctest version that searches along $PATH).
5259 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5260 with des_encrypt() defined on some operating systems, like Solaris
5264 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5265 On the Importance of Eliminating Errors in Cryptographic
5266 Computations, J. Cryptology 14 (2001) 2, 101-119,
5267 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5270 *) MIPS assembler BIGNUM division bug fix.
5273 *) Disabled incorrect Alpha assembler code.
5276 *) Fix PKCS#7 decode routines so they correctly update the length
5277 after reading an EOC for the EXPLICIT tag.
5279 [This change does not apply to 0.9.7.]
5281 *) Fix bug in PKCS#12 key generation routines. This was triggered
5282 if a 3DES key was generated with a 0 initial byte. Include
5283 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5284 (but broken) behaviour.
5287 *) Enhance bctest to search for a working bc along $PATH and print
5289 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5291 *) Fix memory leaks in err.c: free err_data string if necessary;
5292 don't write to the wrong index in ERR_set_error_data.
5295 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5299 *) Replace rdtsc with _emit statements for VC++ version 5.
5300 [Jeremy Cooper <jeremy@baymoo.org>]
5302 *) Make it possible to reuse SSLv2 sessions.
5305 *) In copy_email() check for >= 0 as a return value for
5306 X509_NAME_get_index_by_NID() since 0 is a valid index.
5307 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5309 *) Avoid coredump with unsupported or invalid public keys by checking if
5310 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5311 PKCS7_verify() fails with non detached data.
5314 *) Don't use getenv in library functions when run as setuid/setgid.
5315 New function OPENSSL_issetugid().
5318 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5319 due to incorrect handling of multi-threading:
5321 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5323 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5325 3. Count how many times MemCheck_off() has been called so that
5326 nested use can be treated correctly. This also avoids
5327 inband-signalling in the previous code (which relied on the
5328 assumption that thread ID 0 is impossible).
5331 *) Add "-rand" option also to s_client and s_server.
5334 *) Fix CPU detection on Irix 6.x.
5335 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5336 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5338 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5341 [This change does not apply to 0.9.7.]
5343 *) Use the cached encoding of an X509_NAME structure rather than
5344 copying it. This is apparently the reason for the libsafe "errors"
5345 but the code is actually correct.
5348 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5349 Bleichenbacher's DSA attack.
5350 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5351 to be set and top=0 forces the highest bit to be set; top=-1 is new
5352 and leaves the highest bit random.
5353 [Ulf Moeller, Bodo Moeller]
5355 *) In the NCONF_...-based implementations for CONF_... queries
5356 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5357 a temporary CONF structure with the data component set to NULL
5358 (which gives segmentation faults in lh_retrieve).
5359 Instead, use NULL for the CONF pointer in CONF_get_string and
5360 CONF_get_number (which may use environment variables) and directly
5361 return NULL from CONF_get_section.
5364 *) Fix potential buffer overrun for EBCDIC.
5367 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5368 keyUsage if basicConstraints absent for a CA.
5371 *) Make SMIME_write_PKCS7() write mail header values with a format that
5372 is more generally accepted (no spaces before the semicolon), since
5373 some programs can't parse those values properly otherwise. Also make
5374 sure BIO's that break lines after each write do not create invalid
5378 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5379 macros previously used would not encode an empty SEQUENCE OF
5380 and break the signature.
5382 [This change does not apply to 0.9.7.]
5384 *) Zero the premaster secret after deriving the master secret in
5388 *) Add some EVP_add_digest_alias registrations (as found in
5389 OpenSSL_add_all_digests()) to SSL_library_init()
5390 aka OpenSSL_add_ssl_algorithms(). This provides improved
5391 compatibility with peers using X.509 certificates
5392 with unconventional AlgorithmIdentifier OIDs.
5395 *) Fix for Irix with NO_ASM.
5396 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5398 *) ./config script fixes.
5399 [Ulf Moeller, Richard Levitte]
5401 *) Fix 'openssl passwd -1'.
5404 *) Change PKCS12_key_gen_asc() so it can cope with non null
5405 terminated strings whose length is passed in the passlen
5406 parameter, for example from PEM callbacks. This was done
5407 by adding an extra length parameter to asc2uni().
5408 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5410 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5411 call failed, free the DSA structure.
5414 *) Fix to uni2asc() to cope with zero length Unicode strings.
5415 These are present in some PKCS#12 files.
5418 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5419 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5420 when writing a 32767 byte record.
5421 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5423 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5424 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5426 (RSA objects have a reference count access to which is protected
5427 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5428 so they are meant to be shared between threads.)
5429 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5430 "Reddie, Steven" <Steven.Reddie@ca.com>]
5432 *) Fix a deadlock in CRYPTO_mem_leaks().
5435 *) Use better test patterns in bntest.
5438 *) rand_win.c fix for Borland C.
5441 *) BN_rshift bugfix for n == 0.
5444 *) Add a 'bctest' script that checks for some known 'bc' bugs
5445 so that 'make test' does not abort just because 'bc' is broken.
5448 *) Store verify_result within SSL_SESSION also for client side to
5449 avoid potential security hole. (Re-used sessions on the client side
5450 always resulted in verify_result==X509_V_OK, not using the original
5451 result of the server certificate verification.)
5454 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5455 SSL3_RT_APPLICATION_DATA, return 0.
5456 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5460 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5461 releases, have been re-implemented by renaming the previous
5462 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5463 and ssl3_read_internal, respectively, and adding 'peek' parameters
5464 to them. The new ssl[23]_{read,peek} functions are calls to
5465 ssl[23]_read_internal with the 'peek' flag set appropriately.
5466 A 'peek' parameter has also been added to ssl3_read_bytes, which
5467 does the actual work for ssl3_read_internal.
5470 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5471 the method-specific "init()" handler. Also clean up ex_data after
5472 calling the method-specific "finish()" handler. Previously, this was
5473 happening the other way round.
5476 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5477 The previous value, 12, was not always sufficient for BN_mod_exp().
5480 *) Make sure that shared libraries get the internal name engine with
5481 the full version number and not just 0. This should mark the
5482 shared libraries as not backward compatible. Of course, this should
5483 be changed again when we can guarantee backward binary compatibility.
5486 *) Fix typo in get_cert_by_subject() in by_dir.c
5487 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5489 *) Rework the system to generate shared libraries:
5491 - Make note of the expected extension for the shared libraries and
5492 if there is a need for symbolic links from for example libcrypto.so.0
5493 to libcrypto.so.0.9.7. There is extended info in Configure for
5496 - Make as few rebuilds of the shared libraries as possible.
5498 - Still avoid linking the OpenSSL programs with the shared libraries.
5500 - When installing, install the shared libraries separately from the
5504 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5506 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5507 and not in SSL_clear because the latter is also used by the
5508 accept/connect functions; previously, the settings made by
5509 SSL_set_read_ahead would be lost during the handshake.
5510 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5512 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5513 Previously, it would create entries for disableed algorithms no
5517 *) Added several new manual pages for SSL_* function.
5520 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5522 *) In ssl23_get_client_hello, generate an error message when faced
5523 with an initial SSL 3.0/TLS record that is too small to contain the
5524 first two bytes of the ClientHello message, i.e. client_version.
5525 (Note that this is a pathologic case that probably has never happened
5526 in real life.) The previous approach was to use the version number
5527 from the record header as a substitute; but our protocol choice
5528 should not depend on that one because it is not authenticated
5529 by the Finished messages.
5532 *) More robust randomness gathering functions for Windows.
5533 [Jeffrey Altman <jaltman@columbia.edu>]
5535 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5536 not set then we don't setup the error code for issuer check errors
5537 to avoid possibly overwriting other errors which the callback does
5538 handle. If an application does set the flag then we assume it knows
5539 what it is doing and can handle the new informational codes
5543 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5544 a general "ANY" type, as such it should be able to decode anything
5545 including tagged types. However it didn't check the class so it would
5546 wrongly interpret tagged types in the same way as their universal
5547 counterpart and unknown types were just rejected. Changed so that the
5548 tagged and unknown types are handled in the same way as a SEQUENCE:
5549 that is the encoding is stored intact. There is also a new type
5550 "V_ASN1_OTHER" which is used when the class is not universal, in this
5551 case we have no idea what the actual type is so we just lump them all
5555 *) On VMS, stdout may very well lead to a file that is written to
5556 in a record-oriented fashion. That means that every write() will
5557 write a separate record, which will be read separately by the
5558 programs trying to read from it. This can be very confusing.
5560 The solution is to put a BIO filter in the way that will buffer
5561 text until a linefeed is reached, and then write everything a
5562 line at a time, so every record written will be an actual line,
5563 not chunks of lines and not (usually doesn't happen, but I've
5564 seen it once) several lines in one record. BIO_f_linebuffer() is
5567 Currently, it's a VMS-only method, because that's where it has
5568 been tested well enough.
5571 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5572 it can return incorrect results.
5573 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5574 but it was in 0.9.6-beta[12].)
5577 *) Disable the check for content being present when verifying detached
5578 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5579 include zero length content when signing messages.
5582 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5583 BIO_ctrl (for BIO pairs).
5586 *) Add DSO method for VMS.
5589 *) Bug fix: Montgomery multiplication could produce results with the
5593 *) Add RPM specification openssl.spec and modify it to build three
5594 packages. The default package contains applications, application
5595 documentation and run-time libraries. The devel package contains
5596 include files, static libraries and function documentation. The
5597 doc package contains the contents of the doc directory. The original
5598 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5601 *) Add a large number of documentation files for many SSL routines.
5602 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5604 *) Add a configuration entry for Sony News 4.
5605 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5607 *) Don't set the two most significant bits to one when generating a
5608 random number < q in the DSA library.
5611 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5612 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5613 the underlying transport is blocking) if a handshake took place.
5614 (The default behaviour is needed by applications such as s_client
5615 and s_server that use select() to determine when to use SSL_read;
5616 but for applications that know in advance when to expect data, it
5617 just makes things more complicated.)
5620 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5624 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5625 work better on such systems.
5626 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5628 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5629 Update PKCS12_parse() so it copies the friendlyName and the
5630 keyid to the certificates aux info.
5633 *) Fix bug in PKCS7_verify() which caused an infinite loop
5634 if there was more than one signature.
5635 [Sven Uszpelkat <su@celocom.de>]
5637 *) Major change in util/mkdef.pl to include extra information
5638 about each symbol, as well as presentig variables as well
5639 as functions. This change means that there's n more need
5640 to rebuild the .num files when some algorithms are excluded.
5643 *) Allow the verify time to be set by an application,
5644 rather than always using the current time.
5647 *) Phase 2 verify code reorganisation. The certificate
5648 verify code now looks up an issuer certificate by a
5649 number of criteria: subject name, authority key id
5650 and key usage. It also verifies self signed certificates
5651 by the same criteria. The main comparison function is
5652 X509_check_issued() which performs these checks.
5654 Lot of changes were necessary in order to support this
5655 without completely rewriting the lookup code.
5657 Authority and subject key identifier are now cached.
5659 The LHASH 'certs' is X509_STORE has now been replaced
5660 by a STACK_OF(X509_OBJECT). This is mainly because an
5661 LHASH can't store or retrieve multiple objects with
5662 the same hash value.
5664 As a result various functions (which were all internal
5665 use only) have changed to handle the new X509_STORE
5666 structure. This will break anything that messed round
5667 with X509_STORE internally.
5669 The functions X509_STORE_add_cert() now checks for an
5670 exact match, rather than just subject name.
5672 The X509_STORE API doesn't directly support the retrieval
5673 of multiple certificates matching a given criteria, however
5674 this can be worked round by performing a lookup first
5675 (which will fill the cache with candidate certificates)
5676 and then examining the cache for matches. This is probably
5677 the best we can do without throwing out X509_LOOKUP
5678 entirely (maybe later...).
5680 The X509_VERIFY_CTX structure has been enhanced considerably.
5682 All certificate lookup operations now go via a get_issuer()
5683 callback. Although this currently uses an X509_STORE it
5684 can be replaced by custom lookups. This is a simple way
5685 to bypass the X509_STORE hackery necessary to make this
5686 work and makes it possible to use more efficient techniques
5687 in future. A very simple version which uses a simple
5688 STACK for its trusted certificate store is also provided
5689 using X509_STORE_CTX_trusted_stack().
5691 The verify_cb() and verify() callbacks now have equivalents
5692 in the X509_STORE_CTX structure.
5694 X509_STORE_CTX also has a 'flags' field which can be used
5695 to customise the verify behaviour.
5698 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5699 excludes S/MIME capabilities.
5702 *) When a certificate request is read in keep a copy of the
5703 original encoding of the signed data and use it when outputing
5704 again. Signatures then use the original encoding rather than
5705 a decoded, encoded version which may cause problems if the
5706 request is improperly encoded.
5709 *) For consistency with other BIO_puts implementations, call
5710 buffer_write(b, ...) directly in buffer_puts instead of calling
5713 In BIO_puts, increment b->num_write as in BIO_write.
5714 [Peter.Sylvester@EdelWeb.fr]
5716 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5717 BN_zero, we may not return a BIGNUM with an array consisting of
5721 *) Avoid calling abort() from within the library when problems are
5722 detected, except if preprocessor symbols have been defined
5723 (such as REF_CHECK, BN_DEBUG etc.).
5726 *) New openssl application 'rsautl'. This utility can be
5727 used for low level RSA operations. DER public key
5728 BIO/fp routines also added.
5731 *) New Configure entry and patches for compiling on QNX 4.
5732 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5734 *) A demo state-machine implementation was sponsored by
5735 Nuron (http://www.nuron.com/) and is now available in
5736 demos/state_machine.
5739 *) New options added to the 'dgst' utility for signature
5740 generation and verification.
5743 *) Unrecognized PKCS#7 content types are now handled via a
5744 catch all ASN1_TYPE structure. This allows unsupported
5745 types to be stored as a "blob" and an application can
5746 encode and decode it manually.
5749 *) Fix various signed/unsigned issues to make a_strex.c
5751 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5753 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5754 length if passed a buffer. ASN1_INTEGER_to_BN failed
5755 if passed a NULL BN and its argument was negative.
5756 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5758 *) Modification to PKCS#7 encoding routines to output definite
5759 length encoding. Since currently the whole structures are in
5760 memory there's not real point in using indefinite length
5761 constructed encoding. However if OpenSSL is compiled with
5762 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5765 *) Added BIO_vprintf() and BIO_vsnprintf().
5768 *) Added more prefixes to parse for in the the strings written
5769 through a logging bio, to cover all the levels that are available
5770 through syslog. The prefixes are now:
5772 PANIC, EMERG, EMR => LOG_EMERG
5773 ALERT, ALR => LOG_ALERT
5774 CRIT, CRI => LOG_CRIT
5775 ERROR, ERR => LOG_ERR
5776 WARNING, WARN, WAR => LOG_WARNING
5777 NOTICE, NOTE, NOT => LOG_NOTICE
5778 INFO, INF => LOG_INFO
5779 DEBUG, DBG => LOG_DEBUG
5781 and as before, if none of those prefixes are present at the
5782 beginning of the string, LOG_ERR is chosen.
5784 On Win32, the LOG_* levels are mapped according to this:
5786 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5787 LOG_WARNING => EVENTLOG_WARNING_TYPE
5788 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5792 *) Made it possible to reconfigure with just the configuration
5793 argument "reconf" or "reconfigure". The command line arguments
5794 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5795 and are retrieved from there when reconfiguring.
5799 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5801 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5804 *) The obj_dat.pl script was messing up the sorting of object
5805 names. The reason was that it compared the quoted version
5806 of strings as a result "OCSP" > "OCSP Signing" because
5807 " > SPACE. Changed script to store unquoted versions of
5808 names and add quotes on output. It was also omitting some
5809 names from the lookup table if they were given a default
5810 value (that is if SN is missing it is given the same
5811 value as LN and vice versa), these are now added on the
5812 grounds that if an object has a name we should be able to
5813 look it up. Finally added warning output when duplicate
5814 short or long names are found.
5817 *) Changes needed for Tandem NSK.
5818 [Scott Uroff <scott@xypro.com>]
5820 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5821 RSA_padding_check_SSLv23(), special padding was never detected
5822 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5823 version rollback attacks was not effective.
5825 In s23_clnt.c, don't use special rollback-attack detection padding
5826 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5827 client; similarly, in s23_srvr.c, don't do the rollback check if
5828 SSL 2.0 is the only protocol enabled in the server.
5831 *) Make it possible to get hexdumps of unprintable data with 'openssl
5832 asn1parse'. By implication, the functions ASN1_parse_dump() and
5833 BIO_dump_indent() are added.
5836 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5837 these print out strings and name structures based on various
5838 flags including RFC2253 support and proper handling of
5839 multibyte characters. Added options to the 'x509' utility
5840 to allow the various flags to be set.
5843 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5844 Also change the functions X509_cmp_current_time() and
5845 X509_gmtime_adj() work with an ASN1_TIME structure,
5846 this will enable certificates using GeneralizedTime in validity
5847 dates to be checked.
5850 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5851 negative public key encodings) on by default,
5852 NO_NEG_PUBKEY_BUG can be set to disable it.
5855 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5856 content octets. An i2c_ASN1_OBJECT is unnecessary because
5857 the encoding can be trivially obtained from the structure.
5860 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5861 not read locks (CRYPTO_r_[un]lock).
5864 *) A first attempt at creating official support for shared
5865 libraries through configuration. I've kept it so the
5866 default is static libraries only, and the OpenSSL programs
5867 are always statically linked for now, but there are
5868 preparations for dynamic linking in place.
5869 This has been tested on Linux and Tru64.
5872 *) Randomness polling function for Win9x, as described in:
5873 Peter Gutmann, Software Generation of Practically Strong
5877 *) Fix so PRNG is seeded in req if using an already existing
5881 *) New options to smime application. -inform and -outform
5882 allow alternative formats for the S/MIME message including
5883 PEM and DER. The -content option allows the content to be
5884 specified separately. This should allow things like Netscape
5885 form signing output easier to verify.
5888 *) Fix the ASN1 encoding of tags using the 'long form'.
5891 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5892 STRING types. These convert content octets to and from the
5893 underlying type. The actual tag and length octets are
5894 already assumed to have been read in and checked. These
5895 are needed because all other string types have virtually
5896 identical handling apart from the tag. By having versions
5897 of the ASN1 functions that just operate on content octets
5898 IMPLICIT tagging can be handled properly. It also allows
5899 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5900 and ASN1_INTEGER are identical apart from the tag.
5903 *) Change the handling of OID objects as follows:
5905 - New object identifiers are inserted in objects.txt, following
5906 the syntax given in objects.README.
5907 - objects.pl is used to process obj_mac.num and create a new
5909 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5912 This is currently kind of a hack, and the perl code in objects.pl
5913 isn't very elegant, but it works as I intended. The simplest way
5914 to check that it worked correctly is to look in obj_dat.h and
5915 check the array nid_objs and make sure the objects haven't moved
5916 around (this is important!). Additions are OK, as well as
5917 consistent name changes.
5920 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5923 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5924 The given file adds to whatever has already been seeded into the
5925 random pool through the RANDFILE configuration file option or
5926 environment variable, or the default random state file.
5929 *) mkstack.pl now sorts each macro group into lexical order.
5930 Previously the output order depended on the order the files
5931 appeared in the directory, resulting in needless rewriting
5935 *) Patches to make OpenSSL compile under Win32 again. Mostly
5936 work arounds for the VC++ problem that it treats func() as
5937 func(void). Also stripped out the parts of mkdef.pl that
5938 added extra typesafe functions: these no longer exist.
5941 *) Reorganisation of the stack code. The macros are now all
5942 collected in safestack.h . Each macro is defined in terms of
5943 a "stack macro" of the form SKM_<name>(type, a, b). The
5944 DEBUG_SAFESTACK is now handled in terms of function casts,
5945 this has the advantage of retaining type safety without the
5946 use of additional functions. If DEBUG_SAFESTACK is not defined
5947 then the non typesafe macros are used instead. Also modified the
5948 mkstack.pl script to handle the new form. Needs testing to see
5949 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5950 the default if no major problems. Similar behaviour for ASN1_SET_OF
5951 and PKCS12_STACK_OF.
5954 *) When some versions of IIS use the 'NET' form of private key the
5955 key derivation algorithm is different. Normally MD5(password) is
5956 used as a 128 bit RC4 key. In the modified case
5957 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5958 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5959 as the old Netscape_RSA functions except they have an additional
5960 'sgckey' parameter which uses the modified algorithm. Also added
5961 an -sgckey command line option to the rsa utility. Thanks to
5962 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5963 algorithm to openssl-dev.
5966 *) The evp_local.h macros were using 'c.##kname' which resulted in
5967 invalid expansion on some systems (SCO 5.0.5 for example).
5968 Corrected to 'c.kname'.
5969 [Phillip Porch <root@theporch.com>]
5971 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5972 a STACK of email addresses from a certificate or request, these look
5973 in the subject name and the subject alternative name extensions and
5974 omit any duplicate addresses.
5977 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5978 This makes DSA verification about 2 % faster.
5981 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5982 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5983 plus overhead for 1024 bit moduli).
5984 This makes exponentiations about 0.5 % faster for 1024 bit
5985 exponents (as measured by "openssl speed rsa2048").
5988 *) Rename memory handling macros to avoid conflicts with other
5990 Malloc => OPENSSL_malloc
5991 Malloc_locked => OPENSSL_malloc_locked
5992 Realloc => OPENSSL_realloc
5993 Free => OPENSSL_free
5996 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5997 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6000 *) CygWin32 support.
6001 [John Jarvie <jjarvie@newsguy.com>]
6003 *) The type-safe stack code has been rejigged. It is now only compiled
6004 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6005 by default all type-specific stack functions are "#define"d back to
6006 standard stack functions. This results in more streamlined output
6007 but retains the type-safety checking possibilities of the original
6011 *) The STACK code has been cleaned up, and certain type declarations
6012 that didn't make a lot of sense have been brought in line. This has
6013 also involved a cleanup of sorts in safestack.h to more correctly
6014 map type-safe stack functions onto their plain stack counterparts.
6015 This work has also resulted in a variety of "const"ifications of
6016 lots of the code, especially "_cmp" operations which should normally
6017 be prototyped with "const" parameters anyway.
6020 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6021 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6022 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6023 where all of 'md' is used each time the PRNG is used, but 'state'
6024 is used only indexed by a cyclic counter. As entropy may not be
6025 well distributed from the beginning, 'md' is important as a
6026 chaining variable. However, the output function chains only half
6027 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6028 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6029 in all of 'state' being rewritten, with the new values depending
6030 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6033 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6034 the handshake is continued after ssl_verify_cert_chain();
6035 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6036 can lead to 'unexplainable' connection aborts later.
6037 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6039 *) Major EVP API cipher revision.
6040 Add hooks for extra EVP features. This allows various cipher
6041 parameters to be set in the EVP interface. Support added for variable
6042 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6043 setting of RC2 and RC5 parameters.
6045 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6048 Remove lots of duplicated code from the EVP library. For example *every*
6049 cipher init() function handles the 'iv' in the same way according to the
6050 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6051 for CFB and OFB modes they zero ctx->num.
6053 New functionality allows removal of S/MIME code RC2 hack.
6055 Most of the routines have the same form and so can be declared in terms
6058 By shifting this to the top level EVP_CipherInit() it can be removed from
6059 all individual ciphers. If the cipher wants to handle IVs or keys
6060 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6063 Change lots of functions like EVP_EncryptUpdate() to now return a
6064 value: although software versions of the algorithms cannot fail
6065 any installed hardware versions can.
6068 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6069 this option is set, tolerate broken clients that send the negotiated
6070 protocol version number instead of the requested protocol version
6074 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6075 i.e. non-zero for export ciphersuites, zero otherwise.
6076 Previous versions had this flag inverted, inconsistent with
6077 rsa_tmp_cb (..._TMP_RSA_CB).
6078 [Bodo Moeller; problem reported by Amit Chopra]
6080 *) Add missing DSA library text string. Work around for some IIS
6081 key files with invalid SEQUENCE encoding.
6084 *) Add a document (doc/standards.txt) that list all kinds of standards
6085 and so on that are implemented in OpenSSL.
6088 *) Enhance c_rehash script. Old version would mishandle certificates
6089 with the same subject name hash and wouldn't handle CRLs at all.
6090 Added -fingerprint option to crl utility, to support new c_rehash
6094 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6097 *) Fix for SSL server purpose checking. Server checking was
6098 rejecting certificates which had extended key usage present
6099 but no ssl client purpose.
6100 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6102 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6103 is a little unclear about how a blank password is handled.
6104 Since the password in encoded as a BMPString with terminating
6105 double NULL a zero length password would end up as just the
6106 double NULL. However no password at all is different and is
6107 handled differently in the PKCS#12 key generation code. NS
6108 treats a blank password as zero length. MSIE treats it as no
6109 password on export: but it will try both on import. We now do
6110 the same: PKCS12_parse() tries zero length and no password if
6111 the password is set to "" or NULL (NULL is now a valid password:
6112 it wasn't before) as does the pkcs12 application.
6115 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6116 perror when PEM_read_bio_X509_REQ fails, the error message must
6117 be obtained from the error queue.
6120 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6121 it in ERR_remove_state if appropriate, and change ERR_get_state
6122 accordingly to avoid race conditions (this is necessary because
6123 thread_hash is no longer constant once set).
6126 *) Bugfix for linux-elf makefile.one.
6129 *) RSA_get_default_method() will now cause a default
6130 RSA_METHOD to be chosen if one doesn't exist already.
6131 Previously this was only set during a call to RSA_new()
6132 or RSA_new_method(NULL) meaning it was possible for
6133 RSA_get_default_method() to return NULL.
6136 *) Added native name translation to the existing DSO code
6137 that will convert (if the flag to do so is set) filenames
6138 that are sufficiently small and have no path information
6139 into a canonical native form. Eg. "blah" converted to
6140 "libblah.so" or "blah.dll" etc.
6143 *) New function ERR_error_string_n(e, buf, len) which is like
6144 ERR_error_string(e, buf), but writes at most 'len' bytes
6145 including the 0 terminator. For ERR_error_string_n, 'buf'
6147 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6149 *) CONF library reworked to become more general. A new CONF
6150 configuration file reader "class" is implemented as well as a
6151 new functions (NCONF_*, for "New CONF") to handle it. The now
6152 old CONF_* functions are still there, but are reimplemented to
6153 work in terms of the new functions. Also, a set of functions
6154 to handle the internal storage of the configuration data is
6155 provided to make it easier to write new configuration file
6156 reader "classes" (I can definitely see something reading a
6157 configuration file in XML format, for example), called _CONF_*,
6158 or "the configuration storage API"...
6160 The new configuration file reading functions are:
6162 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6163 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6165 NCONF_default, NCONF_WIN32
6167 NCONF_dump_fp, NCONF_dump_bio
6169 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6170 NCONF_new creates a new CONF object. This works in the same way
6171 as other interfaces in OpenSSL, like the BIO interface.
6172 NCONF_dump_* dump the internal storage of the configuration file,
6173 which is useful for debugging. All other functions take the same
6174 arguments as the old CONF_* functions wth the exception of the
6175 first that must be a `CONF *' instead of a `LHASH *'.
6177 To make it easer to use the new classes with the old CONF_* functions,
6178 the function CONF_set_default_method is provided.
6181 *) Add '-tls1' option to 'openssl ciphers', which was already
6182 mentioned in the documentation but had not been implemented.
6183 (This option is not yet really useful because even the additional
6184 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6187 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6188 OpenSSL-based applications) load shared libraries and bind to
6189 them in a portable way.
6190 [Geoff Thorpe, with contributions from Richard Levitte]
6192 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6194 *) Make sure _lrotl and _lrotr are only used with MSVC.
6196 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6197 (the default implementation of RAND_status).
6199 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6200 to '-clrext' (= clear extensions), as intended and documented.
6201 [Bodo Moeller; inconsistency pointed out by Michael Attili
6204 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6205 was larger than the MD block size.
6206 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6208 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6209 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6210 using the passed key: if the passed key was a private key the result
6211 of X509_print(), for example, would be to print out all the private key
6215 *) des_quad_cksum() byte order bug fix.
6216 [Ulf Möller, using the problem description in krb4-0.9.7, where
6217 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6219 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6221 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6223 *) For easily testing in shell scripts whether some command
6224 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6225 returns with exit code 0 iff no command of the given name is available.
6226 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6227 the output goes to stdout and nothing is printed to stderr.
6228 Additional arguments are always ignored.
6230 Since for each cipher there is a command of the same name,
6231 the 'no-cipher' compilation switches can be tested this way.
6233 ('openssl no-XXX' is not able to detect pseudo-commands such
6234 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6237 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6240 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6241 is set; it will be thrown away anyway because each handshake creates
6243 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6244 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6245 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6246 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6249 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6250 'Q' and 'R' lose their special meanings (quit/renegotiate).
6251 This is part of what -quiet does; unlike -quiet, -ign_eof
6252 does not suppress any output.
6255 *) Add compatibility options to the purpose and trust code. The
6256 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6257 accepts a certificate or CA, this was the previous behaviour,
6258 with all the associated security issues.
6260 X509_TRUST_COMPAT is the old trust behaviour: only and
6261 automatically trust self signed roots in certificate store. A
6262 new trust setting X509_TRUST_DEFAULT is used to specify that
6263 a purpose has no associated trust setting and it should instead
6264 use the value in the default purpose.
6267 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6268 and fix a memory leak.
6271 *) In util/mkerr.pl (which implements 'make errors'), preserve
6272 reason strings from the previous version of the .c file, as
6273 the default to have only downcase letters (and digits) in
6274 automatically generated reasons codes is not always appropriate.
6277 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6278 using strerror. Previously, ERR_reason_error_string() returned
6279 library names as reason strings for SYSerr; but SYSerr is a special
6280 case where small numbers are errno values, not library numbers.
6283 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6284 converts DSA parameters into DH parameters. (When creating parameters,
6285 DSA_generate_parameters is used.)
6288 *) Include 'length' (recommended exponent length) in C code generated
6289 by 'openssl dhparam -C'.
6292 *) The second argument to set_label in perlasm was already being used
6293 so couldn't be used as a "file scope" flag. Moved to third argument
6297 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6298 instead of RAND_bytes for encryption IVs and salts.
6301 *) Include RAND_status() into RAND_METHOD instead of implementing
6302 it only for md_rand.c Otherwise replacing the PRNG by calling
6303 RAND_set_rand_method would be impossible.
6306 *) Don't let DSA_generate_key() enter an infinite loop if the random
6307 number generation fails.
6310 *) New 'rand' application for creating pseudo-random output.
6313 *) Added configuration support for Linux/IA64
6314 [Rolf Haberrecker <rolf@suse.de>]
6316 *) Assembler module support for Mingw32.
6319 *) Shared library support for HPUX (in shlib/).
6320 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6322 *) Shared library support for Solaris gcc.
6323 [Lutz Behnke <behnke@trustcenter.de>]
6325 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6327 *) PKCS7_encrypt() was adding text MIME headers twice because they
6328 were added manually and by SMIME_crlf_copy().
6331 *) In bntest.c don't call BN_rand with zero bits argument.
6332 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6334 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6335 case was implemented. This caused BN_div_recp() to fail occasionally.
6338 *) Add an optional second argument to the set_label() in the perl
6339 assembly language builder. If this argument exists and is set
6340 to 1 it signals that the assembler should use a symbol whose
6341 scope is the entire file, not just the current function. This
6342 is needed with MASM which uses the format label:: for this scope.
6343 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6345 *) Change the ASN1 types so they are typedefs by default. Before
6346 almost all types were #define'd to ASN1_STRING which was causing
6347 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6351 *) Change names of new functions to the new get1/get0 naming
6352 convention: After 'get1', the caller owns a reference count
6353 and has to call ..._free; 'get0' returns a pointer to some
6354 data structure without incrementing reference counters.
6355 (Some of the existing 'get' functions increment a reference
6356 counter, some don't.)
6357 Similarly, 'set1' and 'add1' functions increase reference
6358 counters or duplicate objects.
6361 *) Allow for the possibility of temp RSA key generation failure:
6362 the code used to assume it always worked and crashed on failure.
6365 *) Fix potential buffer overrun problem in BIO_printf().
6366 [Ulf Möller, using public domain code by Patrick Powell; problem
6367 pointed out by David Sacerdote <das33@cornell.edu>]
6369 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6370 RAND_egd() and RAND_status(). In the command line application,
6371 the EGD socket can be specified like a seed file using RANDFILE
6375 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6376 Some CAs (e.g. Verisign) distribute certificates in this form.
6379 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6380 list to exclude them. This means that no special compilation option
6381 is needed to use anonymous DH: it just needs to be included in the
6385 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6386 EVP_MD_type. The old functionality is available in a new macro called
6387 EVP_MD_md(). Change code that uses it and update docs.
6390 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6391 where the 'void *' argument is replaced by a function pointer argument.
6392 Previously 'void *' was abused to point to functions, which works on
6393 many platforms, but is not correct. As these functions are usually
6394 called by macros defined in OpenSSL header files, most source code
6395 should work without changes.
6398 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6399 sections with information on -D... compiler switches used for
6400 compiling the library so that applications can see them. To enable
6401 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6402 must be defined. E.g.,
6403 #define OPENSSL_ALGORITHM_DEFINES
6404 #include <openssl/opensslconf.h>
6405 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6406 [Richard Levitte, Ulf and Bodo Möller]
6408 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6412 *) Change the 'other' type in certificate aux info to a STACK_OF
6413 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6414 the required ASN1 format: arbitrary types determined by an OID.
6417 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6418 argument to 'req'. This is not because the function is newer or
6419 better than others it just uses the work 'NEW' in the certificate
6420 request header lines. Some software needs this.
6423 *) Reorganise password command line arguments: now passwords can be
6424 obtained from various sources. Delete the PEM_cb function and make
6425 it the default behaviour: i.e. if the callback is NULL and the
6426 usrdata argument is not NULL interpret it as a null terminated pass
6427 phrase. If usrdata and the callback are NULL then the pass phrase
6428 is prompted for as usual.
6431 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6432 the support is automatically enabled. The resulting binaries will
6433 autodetect the card and use it if present.
6434 [Ben Laurie and Compaq Inc.]
6436 *) Work around for Netscape hang bug. This sends certificate request
6437 and server done in one record. Since this is perfectly legal in the
6438 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6439 the bugs/SSLv3 entry for more info.
6442 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6445 *) Add -rand argument to smime and pkcs12 applications and read/write
6449 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6452 *) Add command line password options to the remaining applications.
6455 *) Bug fix for BN_div_recp() for numerators with an even number of
6459 *) More tests in bntest.c, and changed test_bn output.
6462 *) ./config recognizes MacOS X now.
6465 *) Bug fix for BN_div() when the first words of num and divsor are
6466 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6469 *) Add support for various broken PKCS#8 formats, and command line
6470 options to produce them.
6473 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6474 get temporary BIGNUMs from a BN_CTX.
6477 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6481 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6482 include a #define from the old name to the new. The original intent
6483 was that statically linked binaries could for example just call
6484 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6485 link with digests. This never worked becayse SSLeay_add_all_digests()
6486 and SSLeay_add_all_ciphers() were in the same source file so calling
6487 one would link with the other. They are now in separate source files.
6490 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6493 *) Use a less unusual form of the Miller-Rabin primality test (it used
6494 a binary algorithm for exponentiation integrated into the Miller-Rabin
6495 loop, our standard modexp algorithms are faster).
6498 *) Support for the EBCDIC character set completed.
6499 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6501 *) Source code cleanups: use const where appropriate, eliminate casts,
6502 use void * instead of char * in lhash.
6505 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6506 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6507 this the server could overwrite ephemeral keys that the client
6511 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6512 using 50 iterations of the Rabin-Miller test.
6514 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6515 iterations of the Rabin-Miller test as required by the appendix
6516 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6517 As BN_is_prime_fasttest includes trial division, DSA parameter
6518 generation becomes much faster.
6520 This implies a change for the callback functions in DSA_is_prime
6521 and DSA_generate_parameters: The callback function is called once
6522 for each positive witness in the Rabin-Miller test, not just
6523 occasionally in the inner loop; and the parameters to the
6524 callback function now provide an iteration count for the outer
6525 loop rather than for the current invocation of the inner loop.
6526 DSA_generate_parameters additionally can call the callback
6527 function with an 'iteration count' of -1, meaning that a
6528 candidate has passed the trial division test (when q is generated
6529 from an application-provided seed, trial division is skipped).
6532 *) New function BN_is_prime_fasttest that optionally does trial
6533 division before starting the Rabin-Miller test and has
6534 an additional BN_CTX * argument (whereas BN_is_prime always
6535 has to allocate at least one BN_CTX).
6536 'callback(1, -1, cb_arg)' is called when a number has passed the
6537 trial division stage.
6540 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6544 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6547 *) New function BN_pseudo_rand().
6550 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6551 bignum version of BN_from_montgomery() with the working code from
6552 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6556 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6557 made it impossible to use the same SSL_SESSION data structure in
6558 SSL2 clients in multiple threads.
6561 *) The return value of RAND_load_file() no longer counts bytes obtained
6562 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6563 to seed the PRNG (previously an explicit byte count was required).
6564 [Ulf Möller, Bodo Möller]
6566 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6567 used (char *) instead of (void *) and had casts all over the place.
6570 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6573 *) Retain source code compatibility for BN_prime_checks macro:
6574 BN_is_prime(..., BN_prime_checks, ...) now uses
6575 BN_prime_checks_for_size to determine the appropriate number of
6576 Rabin-Miller iterations.
6579 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6580 DH_CHECK_P_NOT_SAFE_PRIME.
6581 (Check if this is true? OpenPGP calls them "strong".)
6584 *) Merge the functionality of "dh" and "gendh" programs into a new program
6585 "dhparam". The old programs are retained for now but will handle DH keys
6586 (instead of parameters) in future.
6589 *) Make the ciphers, s_server and s_client programs check the return values
6590 when a new cipher list is set.
6593 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6594 ciphers. Before when the 56bit ciphers were enabled the sorting was
6597 The syntax for the cipher sorting has been extended to support sorting by
6598 cipher-strength (using the strength_bits hard coded in the tables).
6599 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6601 Fix a bug in the cipher-command parser: when supplying a cipher command
6602 string with an "undefined" symbol (neither command nor alphanumeric
6603 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6604 an error is flagged.
6606 Due to the strength-sorting extension, the code of the
6607 ssl_create_cipher_list() function was completely rearranged. I hope that
6608 the readability was also increased :-)
6609 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6611 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6612 for the first serial number and places 2 in the serial number file. This
6613 avoids problems when the root CA is created with serial number zero and
6614 the first user certificate has the same issuer name and serial number
6618 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6619 the new code. Add documentation for this stuff.
6622 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6623 X509_*() to X509at_*() on the grounds that they don't handle X509
6624 structures and behave in an analagous way to the X509v3 functions:
6625 they shouldn't be called directly but wrapper functions should be used
6628 So we also now have some wrapper functions that call the X509at functions
6629 when passed certificate requests. (TO DO: similar things can be done with
6630 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6631 things. Some of these need some d2i or i2d and print functionality
6632 because they handle more complex structures.)
6635 *) Add missing #ifndefs that caused missing symbols when building libssl
6636 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6637 NO_RSA in ssl/s2*.c.
6638 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6640 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6641 has a return value which indicates the quality of the random data
6642 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6643 error queue. New function RAND_pseudo_bytes() generates output that is
6644 guaranteed to be unique but not unpredictable. RAND_add is like
6645 RAND_seed, but takes an extra argument for an entropy estimate
6646 (RAND_seed always assumes full entropy).
6649 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6650 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6651 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6652 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6653 false-positive rate of at most 2^-80 for random input.
6656 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6659 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6660 in the 0.9.5 release), this returns the chain
6661 from an X509_CTX structure with a dup of the stack and all
6662 the X509 reference counts upped: so the stack will exist
6663 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6666 Also make SSL_SESSION_print() print out the verify return
6670 *) Add manpage for the pkcs12 command. Also change the default
6671 behaviour so MAC iteration counts are used unless the new
6672 -nomaciter option is used. This improves file security and
6673 only older versions of MSIE (4.0 for example) need it.
6676 *) Honor the no-xxx Configure options when creating .DEF files.
6679 *) Add PKCS#10 attributes to field table: challengePassword,
6680 unstructuredName and unstructuredAddress. These are taken from
6681 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6682 international characters are used.
6684 More changes to X509_ATTRIBUTE code: allow the setting of types
6685 based on strings. Remove the 'loc' parameter when adding
6686 attributes because these will be a SET OF encoding which is sorted
6690 *) Initial changes to the 'req' utility to allow request generation
6691 automation. This will allow an application to just generate a template
6692 file containing all the field values and have req construct the
6695 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6696 used all over the place including certificate requests and PKCS#7
6697 structures. They are currently handled manually where necessary with
6698 some primitive wrappers for PKCS#7. The new functions behave in a
6699 manner analogous to the X509 extension functions: they allow
6700 attributes to be looked up by NID and added.
6702 Later something similar to the X509V3 code would be desirable to
6703 automatically handle the encoding, decoding and printing of the
6704 more complex types. The string types like challengePassword can
6705 be handled by the string table functions.
6707 Also modified the multi byte string table handling. Now there is
6708 a 'global mask' which masks out certain types. The table itself
6709 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6710 is useful when for example there is only one permissible type
6711 (as in countryName) and using the mask might result in no valid
6715 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6716 SSL_get_peer_finished to allow applications to obtain the latest
6717 Finished messages sent to the peer or expected from the peer,
6718 respectively. (SSL_get_peer_finished is usually the Finished message
6719 actually received from the peer, otherwise the protocol will be aborted.)
6721 As the Finished message are message digests of the complete handshake
6722 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6723 be used for external authentication procedures when the authentication
6724 provided by SSL/TLS is not desired or is not enough.
6727 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6728 the host supports BWX extension and if Compaq C is present on the
6729 $PATH. Just exploiting of the BWX extension results in 20-30%
6730 performance kick for some algorithms, e.g. DES and RC4 to mention
6731 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6735 *) Add support for MS "fast SGC". This is arguably a violation of the
6736 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6737 weak crypto and after checking the certificate is SGC a second one
6738 with strong crypto. MS SGC stops the first handshake after receiving
6739 the server certificate message and sends a second client hello. Since
6740 a server will typically do all the time consuming operations before
6741 expecting any further messages from the client (server key exchange
6742 is the most expensive) there is little difference between the two.
6744 To get OpenSSL to support MS SGC we have to permit a second client
6745 hello message after we have sent server done. In addition we have to
6746 reset the MAC if we do get this second client hello.
6749 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6750 if a DER encoded private key is RSA or DSA traditional format. Changed
6751 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6752 format DER encoded private key. Newer code should use PKCS#8 format which
6753 has the key type encoded in the ASN1 structure. Added DER private key
6754 support to pkcs8 application.
6757 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6758 ciphersuites has been selected (as required by the SSL 3/TLS 1
6759 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6760 is set, we interpret this as a request to violate the specification
6761 (the worst that can happen is a handshake failure, and 'correct'
6762 behaviour would result in a handshake failure anyway).
6765 *) In SSL_CTX_add_session, take into account that there might be multiple
6766 SSL_SESSION structures with the same session ID (e.g. when two threads
6767 concurrently obtain them from an external cache).
6768 The internal cache can handle only one SSL_SESSION with a given ID,
6769 so if there's a conflict, we now throw out the old one to achieve
6773 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6774 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6775 some routines that use cipher OIDs: some ciphers do not have OIDs
6776 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6780 *) Simplify the trust setting structure and code. Now we just have
6781 two sequences of OIDs for trusted and rejected settings. These will
6782 typically have values the same as the extended key usage extension
6783 and any application specific purposes.
6785 The trust checking code now has a default behaviour: it will just
6786 check for an object with the same NID as the passed id. Functions can
6787 be provided to override either the default behaviour or the behaviour
6788 for a given id. SSL client, server and email already have functions
6789 in place for compatibility: they check the NID and also return "trusted"
6790 if the certificate is self signed.
6793 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6794 traditional format into an EVP_PKEY structure.
6797 *) Add a password callback function PEM_cb() which either prompts for
6798 a password if usr_data is NULL or otherwise assumes it is a null
6799 terminated password. Allow passwords to be passed on command line
6800 environment or config files in a few more utilities.
6803 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6804 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6805 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6806 Update documentation.
6809 *) Support for ASN1 "NULL" type. This could be handled before by using
6810 ASN1_TYPE but there wasn't any function that would try to read a NULL
6811 and produce an error if it couldn't. For compatibility we also have
6812 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6813 don't allocate anything because they don't need to.
6816 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6818 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6820 *) Rebuild of the memory allocation routines used by OpenSSL code and
6821 possibly others as well. The purpose is to make an interface that
6822 provide hooks so anyone can build a separate set of allocation and
6823 deallocation routines to be used by OpenSSL, for example memory
6824 pool implementations, or something else, which was previously hard
6825 since Malloc(), Realloc() and Free() were defined as macros having
6826 the values malloc, realloc and free, respectively (except for Win32
6827 compilations). The same is provided for memory debugging code.
6828 OpenSSL already comes with functionality to find memory leaks, but
6829 this gives people a chance to debug other memory problems.
6831 With these changes, a new set of functions and macros have appeared:
6833 CRYPTO_set_mem_debug_functions() [F]
6834 CRYPTO_get_mem_debug_functions() [F]
6835 CRYPTO_dbg_set_options() [F]
6836 CRYPTO_dbg_get_options() [F]
6837 CRYPTO_malloc_debug_init() [M]
6839 The memory debug functions are NULL by default, unless the library
6840 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6841 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6842 gives the standard debugging functions that come with OpenSSL) or
6843 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6844 provided by the library user) must be used. When the standard
6845 debugging functions are used, CRYPTO_dbg_set_options can be used to
6846 request additional information:
6847 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6848 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6850 Also, things like CRYPTO_set_mem_functions will always give the
6851 expected result (the new set of functions is used for allocation
6852 and deallocation) at all times, regardless of platform and compiler
6855 To finish it up, some functions that were never use in any other
6856 way than through macros have a new API and new semantic:
6859 CRYPTO_dbg_realloc()
6862 All macros of value have retained their old syntax.
6863 [Richard Levitte and Bodo Moeller]
6865 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6866 ordering of SMIMECapabilities wasn't in "strength order" and there
6867 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6871 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6872 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6873 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6875 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6876 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6877 functionality to handle multipart/signed properly) and a utility
6878 called 'smime' to call all this stuff. This is based on code I
6879 originally wrote for Celo who have kindly allowed it to be
6880 included in OpenSSL.
6883 *) Add variants des_set_key_checked and des_set_key_unchecked of
6884 des_set_key (aka des_key_sched). Global variable des_check_key
6885 decides which of these is called by des_set_key; this way
6886 des_check_key behaves as it always did, but applications and
6887 the library itself, which was buggy for des_check_key == 1,
6888 have a cleaner way to pick the version they need.
6891 *) New function PKCS12_newpass() which changes the password of a
6895 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6896 dynamic mix. In both cases the ids can be used as an index into the
6897 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6898 functions so they accept a list of the field values and the
6899 application doesn't need to directly manipulate the X509_TRUST
6903 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6907 *) Modify the way the V3 extension code looks up extensions. This now
6908 works in a similar way to the object code: we have some "standard"
6909 extensions in a static table which is searched with OBJ_bsearch()
6910 and the application can add dynamic ones if needed. The file
6911 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6912 updated whenever a new extension is added to the core code and kept
6913 in ext_nid order. There is a simple program 'tabtest.c' which checks
6914 this. New extensions are not added too often so this file can readily
6915 be maintained manually.
6917 There are two big advantages in doing things this way. The extensions
6918 can be looked up immediately and no longer need to be "added" using
6919 X509V3_add_standard_extensions(): this function now does nothing.
6920 [Side note: I get *lots* of email saying the extension code doesn't
6921 work because people forget to call this function]
6922 Also no dynamic allocation is done unless new extensions are added:
6923 so if we don't add custom extensions there is no need to call
6924 X509V3_EXT_cleanup().
6927 *) Modify enc utility's salting as follows: make salting the default. Add a
6928 magic header, so unsalted files fail gracefully instead of just decrypting
6929 to garbage. This is because not salting is a big security hole, so people
6930 should be discouraged from doing it.
6933 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6934 digest to be passed on the command line but it only used this
6935 parameter when signing a certificate. Modified so all relevant
6936 operations are affected by the digest parameter including the
6937 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6938 DSA key was used because it didn't fix the digest.
6941 *) Initial certificate chain verify code. Currently tests the untrusted
6942 certificates for consistency with the verify purpose (which is set
6943 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6945 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6946 this is because it will reject chains with invalid extensions whereas
6947 every previous version of OpenSSL and SSLeay made no checks at all.
6949 Trust code: checks the root CA for the relevant trust settings. Trust
6950 settings have an initial value consistent with the verify purpose: e.g.
6951 if the verify purpose is for SSL client use it expects the CA to be
6952 trusted for SSL client use. However the default value can be changed to
6953 permit custom trust settings: one example of this would be to only trust
6954 certificates from a specific "secure" set of CAs.
6956 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6957 which should be used for version portability: especially since the
6958 verify structure is likely to change more often now.
6960 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6961 to set them. If not set then assume SSL clients will verify SSL servers
6964 Two new options to the verify program: -untrusted allows a set of
6965 untrusted certificates to be passed in and -purpose which sets the
6966 intended purpose of the certificate. If a purpose is set then the
6967 new chain verify code is used to check extension consistency.
6970 *) Support for the authority information access extension.
6973 *) Modify RSA and DSA PEM read routines to transparently handle
6974 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6975 public keys in a format compatible with certificate
6976 SubjectPublicKeyInfo structures. Unfortunately there were already
6977 functions called *_PublicKey_* which used various odd formats so
6978 these are retained for compatibility: however the DSA variants were
6979 never in a public release so they have been deleted. Changed dsa/rsa
6980 utilities to handle the new format: note no releases ever handled public
6981 keys so we should be OK.
6983 The primary motivation for this change is to avoid the same fiasco
6984 that dogs private keys: there are several incompatible private key
6985 formats some of which are standard and some OpenSSL specific and
6986 require various evil hacks to allow partial transparent handling and
6987 even then it doesn't work with DER formats. Given the option anything
6988 other than PKCS#8 should be dumped: but the other formats have to
6989 stay in the name of compatibility.
6991 With public keys and the benefit of hindsight one standard format
6992 is used which works with EVP_PKEY, RSA or DSA structures: though
6993 it clearly returns an error if you try to read the wrong kind of key.
6995 Added a -pubkey option to the 'x509' utility to output the public key.
6996 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6997 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6998 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6999 that do the same as the EVP_PKEY_assign_*() except they up the
7000 reference count of the added key (they don't "swallow" the
7004 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7005 CRLs would fail if the file contained no certificates or no CRLs:
7006 added a new function to read in both types and return the number
7007 read: this means that if none are read it will be an error. The
7008 DER versions of the certificate and CRL reader would always fail
7009 because it isn't possible to mix certificates and CRLs in DER format
7010 without choking one or the other routine. Changed this to just read
7011 a certificate: this is the best we can do. Also modified the code
7012 in apps/verify.c to take notice of return codes: it was previously
7013 attempting to read in certificates from NULL pointers and ignoring
7014 any errors: this is one reason why the cert and CRL reader seemed
7015 to work. It doesn't check return codes from the default certificate
7016 routines: these may well fail if the certificates aren't installed.
7019 *) Code to support otherName option in GeneralName.
7022 *) First update to verify code. Change the verify utility
7023 so it warns if it is passed a self signed certificate:
7024 for consistency with the normal behaviour. X509_verify
7025 has been modified to it will now verify a self signed
7026 certificate if *exactly* the same certificate appears
7027 in the store: it was previously impossible to trust a
7028 single self signed certificate. This means that:
7029 openssl verify ss.pem
7030 now gives a warning about a self signed certificate but
7031 openssl verify -CAfile ss.pem ss.pem
7035 *) For servers, store verify_result in SSL_SESSION data structure
7036 (and add it to external session representation).
7037 This is needed when client certificate verifications fails,
7038 but an application-provided verification callback (set by
7039 SSL_CTX_set_cert_verify_callback) allows accepting the session
7040 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7041 but returns 1): When the session is reused, we have to set
7042 ssl->verify_result to the appropriate error code to avoid
7044 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7046 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7047 case in PKCS7_dataInit() where the signed PKCS7 structure
7048 didn't contain any existing data because it was being created.
7049 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7051 *) Add a salt to the key derivation routines in enc.c. This
7052 forms the first 8 bytes of the encrypted file. Also add a
7053 -S option to allow a salt to be input on the command line.
7056 *) New function X509_cmp(). Oddly enough there wasn't a function
7057 to compare two certificates. We do this by working out the SHA1
7058 hash and comparing that. X509_cmp() will be needed by the trust
7062 *) SSL_get1_session() is like SSL_get_session(), but increments
7063 the reference count in the SSL_SESSION returned.
7064 [Geoff Thorpe <geoff@eu.c2.net>]
7066 *) Fix for 'req': it was adding a null to request attributes.
7067 Also change the X509_LOOKUP and X509_INFO code to handle
7068 certificate auxiliary information.
7071 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7075 *) Add the possibility to add extra information to the memory leak
7076 detecting output, to form tracebacks, showing from where each
7077 allocation was originated: CRYPTO_push_info("constant string") adds
7078 the string plus current file name and line number to a per-thread
7079 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7080 is like calling CYRPTO_pop_info() until the stack is empty.
7081 Also updated memory leak detection code to be multi-thread-safe.
7084 *) Add options -text and -noout to pkcs7 utility and delete the
7085 encryption options which never did anything. Update docs.
7088 *) Add options to some of the utilities to allow the pass phrase
7089 to be included on either the command line (not recommended on
7090 OSes like Unix) or read from the environment. Update the
7091 manpages and fix a few bugs.
7094 *) Add a few manpages for some of the openssl commands.
7097 *) Fix the -revoke option in ca. It was freeing up memory twice,
7098 leaking and not finding already revoked certificates.
7101 *) Extensive changes to support certificate auxiliary information.
7102 This involves the use of X509_CERT_AUX structure and X509_AUX
7103 functions. An X509_AUX function such as PEM_read_X509_AUX()
7104 can still read in a certificate file in the usual way but it
7105 will also read in any additional "auxiliary information". By
7106 doing things this way a fair degree of compatibility can be
7107 retained: existing certificates can have this information added
7108 using the new 'x509' options.
7110 Current auxiliary information includes an "alias" and some trust
7111 settings. The trust settings will ultimately be used in enhanced
7112 certificate chain verification routines: currently a certificate
7113 can only be trusted if it is self signed and then it is trusted
7117 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7118 The problem was that one of the replacement routines had not been working
7119 since SSLeay releases. For now the offending routine has been replaced
7120 with non-optimised assembler. Even so, this now gives around 95%
7121 performance improvement for 1024 bit RSA signs.
7124 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7125 handling. Most clients have the effective key size in bits equal to
7126 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7127 A few however don't do this and instead use the size of the decrypted key
7128 to determine the RC2 key length and the AlgorithmIdentifier to determine
7129 the effective key length. In this case the effective key length can still
7130 be 40 bits but the key length can be 168 bits for example. This is fixed
7131 by manually forcing an RC2 key into the EVP_PKEY structure because the
7132 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7133 the key length and effective key length are equal.
7136 *) Add a bunch of functions that should simplify the creation of
7137 X509_NAME structures. Now you should be able to do:
7138 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7139 and have it automatically work out the correct field type and fill in
7140 the structures. The more adventurous can try:
7141 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7142 and it will (hopefully) work out the correct multibyte encoding.
7145 *) Change the 'req' utility to use the new field handling and multibyte
7146 copy routines. Before the DN field creation was handled in an ad hoc
7147 way in req, ca, and x509 which was rather broken and didn't support
7148 BMPStrings or UTF8Strings. Since some software doesn't implement
7149 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7150 using the dirstring_type option. See the new comment in the default
7151 openssl.cnf for more info.
7154 *) Make crypto/rand/md_rand.c more robust:
7155 - Assure unique random numbers after fork().
7156 - Make sure that concurrent threads access the global counter and
7157 md serializably so that we never lose entropy in them
7158 or use exactly the same state in multiple threads.
7159 Access to the large state is not always serializable because
7160 the additional locking could be a performance killer, and
7161 md should be large enough anyway.
7164 *) New file apps/app_rand.c with commonly needed functionality
7165 for handling the random seed file.
7167 Use the random seed file in some applications that previously did not:
7169 dsaparam -genkey (which also ignored its '-rand' option),
7172 x509 (when signing).
7173 Except on systems with /dev/urandom, it is crucial to have a random
7174 seed file at least for key creation, DSA signing, and for DH exchanges;
7175 for RSA signatures we could do without one.
7177 gendh and gendsa (unlike genrsa) used to read only the first byte
7178 of each file listed in the '-rand' option. The function as previously
7179 found in genrsa is now in app_rand.c and is used by all programs
7180 that support '-rand'.
7183 *) In RAND_write_file, use mode 0600 for creating files;
7184 don't just chmod when it may be too late.
7187 *) Report an error from X509_STORE_load_locations
7188 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7191 *) New function ASN1_mbstring_copy() this copies a string in either
7192 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7193 into an ASN1_STRING type. A mask of permissible types is passed
7194 and it chooses the "minimal" type to use or an error if not type
7198 *) Add function equivalents to the various macros in asn1.h. The old
7199 macros are retained with an M_ prefix. Code inside the library can
7200 use the M_ macros. External code (including the openssl utility)
7201 should *NOT* in order to be "shared library friendly".
7204 *) Add various functions that can check a certificate's extensions
7205 to see if it usable for various purposes such as SSL client,
7206 server or S/MIME and CAs of these types. This is currently
7207 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7208 verification. Also added a -purpose flag to x509 utility to
7209 print out all the purposes.
7212 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7216 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7217 for, obtain and decode and extension and obtain its critical flag.
7218 This allows all the necessary extension code to be handled in a
7219 single function call.
7222 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7223 platforms. See crypto/rc4/rc4_enc.c for further details.
7226 *) New -noout option to asn1parse. This causes no output to be produced
7227 its main use is when combined with -strparse and -out to extract data
7228 from a file (which may not be in ASN.1 format).
7231 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7232 when producing the local key id.
7233 [Richard Levitte <levitte@stacken.kth.se>]
7235 *) New option -dhparam in s_server. This allows a DH parameter file to be
7236 stated explicitly. If it is not stated then it tries the first server
7237 certificate file. The previous behaviour hard coded the filename
7241 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7242 a public key to be input or output. For example:
7243 openssl rsa -in key.pem -pubout -out pubkey.pem
7244 Also added necessary DSA public key functions to handle this.
7247 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7248 in the message. This was handled by allowing
7249 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7250 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7252 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7253 to the end of the strings whereas this didn't. This would cause problems
7254 if strings read with d2i_ASN1_bytes() were later modified.
7255 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7257 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7258 data and it contains EOF it will end up returning an error. This is
7259 caused by input 46 bytes long. The cause is due to the way base64
7260 BIOs find the start of base64 encoded data. They do this by trying a
7261 trial decode on each line until they find one that works. When they
7262 do a flag is set and it starts again knowing it can pass all the
7263 data directly through the decoder. Unfortunately it doesn't reset
7264 the context it uses. This means that if EOF is reached an attempt
7265 is made to pass two EOFs through the context and this causes the
7266 resulting error. This can also cause other problems as well. As is
7267 usual with these problems it takes *ages* to find and the fix is
7268 trivial: move one line.
7269 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7271 *) Ugly workaround to get s_client and s_server working under Windows. The
7272 old code wouldn't work because it needed to select() on sockets and the
7273 tty (for keypresses and to see if data could be written). Win32 only
7274 supports select() on sockets so we select() with a 1s timeout on the
7275 sockets and then see if any characters are waiting to be read, if none
7276 are present then we retry, we also assume we can always write data to
7277 the tty. This isn't nice because the code then blocks until we've
7278 received a complete line of data and it is effectively polling the
7279 keyboard at 1s intervals: however it's quite a bit better than not
7280 working at all :-) A dedicated Windows application might handle this
7281 with an event loop for example.
7284 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7285 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7286 will be called when RSA_sign() and RSA_verify() are used. This is useful
7287 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7288 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7289 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7290 This necessitated the support of an extra signature type NID_md5_sha1
7291 for SSL signatures and modifications to the SSL library to use it instead
7292 of calling RSA_public_decrypt() and RSA_private_encrypt().
7295 *) Add new -verify -CAfile and -CApath options to the crl program, these
7296 will lookup a CRL issuers certificate and verify the signature in a
7297 similar way to the verify program. Tidy up the crl program so it
7298 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7299 less strict. It will now permit CRL extensions even if it is not
7300 a V2 CRL: this will allow it to tolerate some broken CRLs.
7303 *) Initialize all non-automatic variables each time one of the openssl
7304 sub-programs is started (this is necessary as they may be started
7305 multiple times from the "OpenSSL>" prompt).
7306 [Lennart Bang, Bodo Moeller]
7308 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7309 removing all other RSA functionality (this is what NO_RSA does). This
7310 is so (for example) those in the US can disable those operations covered
7311 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7315 *) Non-copying interface to BIO pairs.
7316 (still largely untested)
7319 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7320 ASCII string. This was handled independently in various places before.
7323 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7324 UTF8 strings a character at a time.
7327 *) Use client_version from client hello to select the protocol
7328 (s23_srvr.c) and for RSA client key exchange verification
7329 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7332 *) Add various utility functions to handle SPKACs, these were previously
7333 handled by poking round in the structure internals. Added new function
7334 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7335 print, verify and generate SPKACs. Based on an original idea from
7336 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7339 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7342 *) Allow the config file extension section to be overwritten on the
7343 command line. Based on an original idea from Massimiliano Pala
7344 <madwolf@comune.modena.it>. The new option is called -extensions
7345 and can be applied to ca, req and x509. Also -reqexts to override
7346 the request extensions in req and -crlexts to override the crl extensions
7350 *) Add new feature to the SPKAC handling in ca. Now you can include
7351 the same field multiple times by preceding it by "XXXX." for example:
7354 this is the same syntax as used in the req config file.
7357 *) Allow certificate extensions to be added to certificate requests. These
7358 are specified in a 'req_extensions' option of the req section of the
7359 config file. They can be printed out with the -text option to req but
7360 are otherwise ignored at present.
7363 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7364 data read consists of only the final block it would not decrypted because
7365 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7366 A misplaced 'break' also meant the decrypted final block might not be
7367 copied until the next read.
7370 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7371 a few extra parameters to the DH structure: these will be useful if
7372 for example we want the value of 'q' or implement X9.42 DH.
7375 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7376 provides hooks that allow the default DSA functions or functions on a
7377 "per key" basis to be replaced. This allows hardware acceleration and
7378 hardware key storage to be handled without major modification to the
7379 library. Also added low level modexp hooks and CRYPTO_EX structure and
7380 associated functions.
7383 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7384 as "read only": it can't be written to and the buffer it points to will
7385 not be freed. Reading from a read only BIO is much more efficient than
7386 a normal memory BIO. This was added because there are several times when
7387 an area of memory needs to be read from a BIO. The previous method was
7388 to create a memory BIO and write the data to it, this results in two
7389 copies of the data and an O(n^2) reading algorithm. There is a new
7390 function BIO_new_mem_buf() which creates a read only memory BIO from
7391 an area of memory. Also modified the PKCS#7 routines to use read only
7395 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7396 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7397 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7398 but a retry condition occured while trying to read the rest.
7401 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7402 NID_pkcs7_encrypted by default: this was wrong since this should almost
7403 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7404 the encrypted data type: this is a more sensible place to put it and it
7405 allows the PKCS#12 code to be tidied up that duplicated this
7409 *) Changed obj_dat.pl script so it takes its input and output files on
7410 the command line. This should avoid shell escape redirection problems
7414 *) Initial support for certificate extension requests, these are included
7415 in things like Xenroll certificate requests. Included functions to allow
7416 extensions to be obtained and added.
7419 *) -crlf option to s_client and s_server for sending newlines as
7420 CRLF (as required by many protocols).
7423 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7425 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7426 [Ralf S. Engelschall]
7428 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7429 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7431 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7435 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7436 DH parameters/keys (q is lost during that conversion, but the resulting
7437 DH parameters contain its length).
7439 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7440 much faster than DH_generate_parameters (which creates parameters
7441 where p = 2*q + 1), and also the smaller q makes DH computations
7442 much more efficient (160-bit exponentiation instead of 1024-bit
7443 exponentiation); so this provides a convenient way to support DHE
7444 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7445 utter importance to use
7446 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7448 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7449 when such DH parameters are used, because otherwise small subgroup
7450 attacks may become possible!
7453 *) Avoid memory leak in i2d_DHparams.
7456 *) Allow the -k option to be used more than once in the enc program:
7457 this allows the same encrypted message to be read by multiple recipients.
7460 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7461 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7462 it will always use the numerical form of the OID, even if it has a short
7466 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7467 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7468 otherwise bn_mod_exp was called. In the case of hardware keys for example
7469 no private key components need be present and it might store extra data
7470 in the RSA structure, which cannot be accessed from bn_mod_exp.
7471 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7472 private key operations.
7475 *) Added support for SPARC Linux.
7478 *) pem_password_cb function type incompatibly changed from
7479 typedef int pem_password_cb(char *buf, int size, int rwflag);
7481 ....(char *buf, int size, int rwflag, void *userdata);
7482 so that applications can pass data to their callbacks:
7483 The PEM[_ASN1]_{read,write}... functions and macros now take an
7484 additional void * argument, which is just handed through whenever
7485 the password callback is called.
7486 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7488 New function SSL_CTX_set_default_passwd_cb_userdata.
7490 Compatibility note: As many C implementations push function arguments
7491 onto the stack in reverse order, the new library version is likely to
7492 interoperate with programs that have been compiled with the old
7493 pem_password_cb definition (PEM_whatever takes some data that
7494 happens to be on the stack as its last argument, and the callback
7495 just ignores this garbage); but there is no guarantee whatsoever that
7498 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7499 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7500 problems not only on Windows, but also on some Unix platforms.
7501 To avoid problematic command lines, these definitions are now in an
7502 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7503 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7506 *) MIPS III/IV assembler module is reimplemented.
7509 *) More DES library cleanups: remove references to srand/rand and
7510 delete an unused file.
7513 *) Add support for the the free Netwide assembler (NASM) under Win32,
7514 since not many people have MASM (ml) and it can be hard to obtain.
7515 This is currently experimental but it seems to work OK and pass all
7516 the tests. Check out INSTALL.W32 for info.
7519 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7520 without temporary keys kept an extra copy of the server key,
7521 and connections with temporary keys did not free everything in case
7525 *) New function RSA_check_key and new openssl rsa option -check
7526 for verifying the consistency of RSA keys.
7527 [Ulf Moeller, Bodo Moeller]
7529 *) Various changes to make Win32 compile work:
7530 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7531 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7532 comparison" warnings.
7533 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7536 *) Add a debugging option to PKCS#5 v2 key generation function: when
7537 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7538 derived keys are printed to stderr.
7541 *) Copy the flags in ASN1_STRING_dup().
7542 [Roman E. Pavlov <pre@mo.msk.ru>]
7544 *) The x509 application mishandled signing requests containing DSA
7545 keys when the signing key was also DSA and the parameters didn't match.
7547 It was supposed to omit the parameters when they matched the signing key:
7548 the verifying software was then supposed to automatically use the CA's
7549 parameters if they were absent from the end user certificate.
7551 Omitting parameters is no longer recommended. The test was also
7552 the wrong way round! This was probably due to unusual behaviour in
7553 EVP_cmp_parameters() which returns 1 if the parameters match.
7554 This meant that parameters were omitted when they *didn't* match and
7555 the certificate was useless. Certificates signed with 'ca' didn't have
7557 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7559 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7560 The interface is as follows:
7561 Applications can use
7562 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7563 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7564 "off" is now the default.
7565 The library internally uses
7566 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7567 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7568 to disable memory-checking temporarily.
7570 Some inconsistent states that previously were possible (and were
7571 even the default) are now avoided.
7573 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7574 with each memory chunk allocated; this is occasionally more helpful
7575 than just having a counter.
7577 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7579 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7583 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7584 which largely parallels "options", but is for changing API behaviour,
7585 whereas "options" are about protocol behaviour.
7586 Initial "mode" flags are:
7588 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7589 a single record has been written.
7590 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7591 retries use the same buffer location.
7592 (But all of the contents must be
7596 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7599 *) Fix problems with no-hmac etc.
7600 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7602 *) New functions RSA_get_default_method(), RSA_set_method() and
7603 RSA_get_method(). These allows replacement of RSA_METHODs without having
7604 to mess around with the internals of an RSA structure.
7607 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7608 Also really enable memory leak checks in openssl.c and in some
7610 [Chad C. Mulligan, Bodo Moeller]
7612 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7613 up the length of negative integers. This has now been simplified to just
7614 store the length when it is first determined and use it later, rather
7615 than trying to keep track of where data is copied and updating it to
7617 [Steve Henson, reported by Brien Wheeler
7618 <bwheeler@authentica-security.com>]
7620 *) Add a new function PKCS7_signatureVerify. This allows the verification
7621 of a PKCS#7 signature but with the signing certificate passed to the
7622 function itself. This contrasts with PKCS7_dataVerify which assumes the
7623 certificate is present in the PKCS#7 structure. This isn't always the
7624 case: certificates can be omitted from a PKCS#7 structure and be
7625 distributed by "out of band" means (such as a certificate database).
7628 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7629 function prototypes in pem.h, also change util/mkdef.pl to add the
7630 necessary function names.
7633 *) mk1mf.pl (used by Windows builds) did not properly read the
7634 options set by Configure in the top level Makefile, and Configure
7635 was not even able to write more than one option correctly.
7636 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7639 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7640 file to be loaded from a BIO or FILE pointer. The BIO version will
7641 for example allow memory BIOs to contain config info.
7644 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7645 Whoever hopes to achieve shared-library compatibility across versions
7646 must use this, not the compile-time macro.
7647 (Exercise 0.9.4: Which is the minimum library version required by
7649 Note: All this applies only to multi-threaded programs, others don't
7653 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7654 through a BIO pair triggered the default case, i.e.
7655 SSLerr(...,SSL_R_UNKNOWN_STATE).
7658 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7659 can use the SSL library even if none of the specific BIOs is
7663 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7664 for the encoded length.
7665 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7667 *) Add initial documentation of the X509V3 functions.
7670 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7671 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7672 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7673 secure PKCS#8 private key format with a high iteration count.
7676 *) Fix determination of Perl interpreter: A perl or perl5
7677 _directory_ in $PATH was also accepted as the interpreter.
7678 [Ralf S. Engelschall]
7680 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7681 wrong with it but it was very old and did things like calling
7682 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7686 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7687 to use the new extension code.
7690 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7691 with macros. This should make it easier to change their form, add extra
7692 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7696 *) Add to configuration table a new entry that can specify an alternative
7697 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7698 according to Mark Crispin <MRC@Panda.COM>.
7702 *) DES CBC did not update the IV. Weird.
7705 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7706 Changing the behaviour of the former might break existing programs --
7707 where IV updating is needed, des_ncbc_encrypt can be used.
7710 *) When bntest is run from "make test" it drives bc to check its
7711 calculations, as well as internally checking them. If an internal check
7712 fails, it needs to cause bc to give a non-zero result or make test carries
7713 on without noticing the failure. Fixed.
7716 *) DES library cleanups.
7719 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7720 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7721 ciphers. NOTE: although the key derivation function has been verified
7722 against some published test vectors it has not been extensively tested
7723 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7727 *) Instead of "mkdir -p", which is not fully portable, use new
7728 Perl script "util/mkdir-p.pl".
7731 *) Rewrite the way password based encryption (PBE) is handled. It used to
7732 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7733 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7734 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7735 the 'parameter' field of the AlgorithmIdentifier is passed to the
7736 underlying key generation function so it must do its own ASN1 parsing.
7737 This has also changed the EVP_PBE_CipherInit() function which now has a
7738 'parameter' argument instead of literal salt and iteration count values
7739 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7742 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7743 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7744 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7745 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7746 value was just used as a "magic string" and not used directly its
7747 value doesn't matter.
7750 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7754 *) "linux-sparc64" configuration (ultrapenguin).
7755 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7756 "linux-sparc" configuration.
7757 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7759 *) config now generates no-xxx options for missing ciphers.
7762 *) Support the EBCDIC character set (work in progress).
7763 File ebcdic.c not yet included because it has a different license.
7764 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7766 *) Support BS2000/OSD-POSIX.
7767 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7769 *) Make callbacks for key generation use void * instead of char *.
7772 *) Make S/MIME samples compile (not yet tested).
7775 *) Additional typesafe stacks.
7778 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7782 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7784 *) New configuration variant "sco5-gcc".
7786 *) Updated some demos.
7787 [Sean O Riordain, Wade Scholine]
7789 *) Add missing BIO_free at exit of pkcs12 application.
7792 *) Fix memory leak in conf.c.
7795 *) Updates for Win32 to assembler version of MD5.
7798 *) Set #! path to perl in apps/der_chop to where we found it
7799 instead of using a fixed path.
7802 *) SHA library changes for irix64-mips4-cc.
7805 *) Improvements for VMS support.
7809 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7811 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7812 This also avoids the problems with SC4.2 and unpatched SC5.
7813 [Andy Polyakov <appro@fy.chalmers.se>]
7815 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7816 These are required because of the typesafe stack would otherwise break
7817 existing code. If old code used a structure member which used to be STACK
7818 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7819 sk_num or sk_value it would produce an error because the num, data members
7820 are not present in STACK_OF. Now it just produces a warning. sk_set
7821 replaces the old method of assigning a value to sk_value
7822 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7823 that does this will no longer work (and should use sk_set instead) but
7824 this could be regarded as a "questionable" behaviour anyway.
7827 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7828 correctly handle encrypted S/MIME data.
7831 *) Change type of various DES function arguments from des_cblock
7832 (which means, in function argument declarations, pointer to char)
7833 to des_cblock * (meaning pointer to array with 8 char elements),
7834 which allows the compiler to do more typechecking; it was like
7835 that back in SSLeay, but with lots of ugly casts.
7837 Introduce new type const_des_cblock.
7840 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7841 problems: find RecipientInfo structure that matches recipient certificate
7842 and initialise the ASN1 structures properly based on passed cipher.
7845 *) Belatedly make the BN tests actually check the results.
7848 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7849 to and from BNs: it was completely broken. New compilation option
7850 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7851 key elements as negative integers.
7854 *) Reorganize and speed up MD5.
7855 [Andy Polyakov <appro@fy.chalmers.se>]
7858 [Richard Levitte <richard@levitte.org>]
7860 *) New option -out to asn1parse to allow the parsed structure to be
7861 output to a file. This is most useful when combined with the -strparse
7862 option to examine the output of things like OCTET STRINGS.
7865 *) Make SSL library a little more fool-proof by not requiring any longer
7866 that SSL_set_{accept,connect}_state be called before
7867 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7868 in many applications because usually everything *appeared* to work as
7869 intended anyway -- now it really works as intended).
7872 *) Move openssl.cnf out of lib/.
7875 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7876 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7877 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7878 [Ralf S. Engelschall]
7880 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7881 handle PKCS#7 enveloped data properly.
7882 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7884 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7885 copying pointers. The cert_st handling is changed by this in
7886 various ways (and thus what used to be known as ctx->default_cert
7887 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7888 any longer when s->cert does not give us what we need).
7889 ssl_cert_instantiate becomes obsolete by this change.
7890 As soon as we've got the new code right (possibly it already is?),
7891 we have solved a couple of bugs of the earlier code where s->cert
7892 was used as if it could not have been shared with other SSL structures.
7894 Note that using the SSL API in certain dirty ways now will result
7895 in different behaviour than observed with earlier library versions:
7896 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7897 does not influence s as it used to.
7899 In order to clean up things more thoroughly, inside SSL_SESSION
7900 we don't use CERT any longer, but a new structure SESS_CERT
7901 that holds per-session data (if available); currently, this is
7902 the peer's certificate chain and, for clients, the server's certificate
7903 and temporary key. CERT holds only those values that can have
7904 meaningful defaults in an SSL_CTX.
7907 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7908 from the internal representation. Various PKCS#7 fixes: remove some
7909 evil casts and set the enc_dig_alg field properly based on the signing
7913 *) Allow PKCS#12 password to be set from the command line or the
7914 environment. Let 'ca' get its config file name from the environment
7915 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7919 *) Allow certificate policies extension to use an IA5STRING for the
7920 organization field. This is contrary to the PKIX definition but
7921 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7925 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7926 without disallowing inline assembler and the like for non-pedantic builds.
7929 *) Support Borland C++ builder.
7930 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7935 *) SHA-1 cleanups and performance enhancements.
7936 [Andy Polyakov <appro@fy.chalmers.se>]
7938 *) Sparc v8plus assembler for the bignum library.
7939 [Andy Polyakov <appro@fy.chalmers.se>]
7941 *) Accept any -xxx and +xxx compiler options in Configure.
7944 *) Update HPUX configuration.
7947 *) Add missing sk_<type>_unshift() function to safestack.h
7948 [Ralf S. Engelschall]
7950 *) New function SSL_CTX_use_certificate_chain_file that sets the
7951 "extra_cert"s in addition to the certificate. (This makes sense
7952 only for "PEM" format files, as chains as a whole are not
7956 *) Support verify_depth from the SSL API.
7957 x509_vfy.c had what can be considered an off-by-one-error:
7958 Its depth (which was not part of the external interface)
7959 was actually counting the number of certificates in a chain;
7960 now it really counts the depth.
7963 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7964 instead of X509err, which often resulted in confusing error
7965 messages since the error codes are not globally unique
7966 (e.g. an alleged error in ssl3_accept when a certificate
7967 didn't match the private key).
7969 *) New function SSL_CTX_set_session_id_context that allows to set a default
7970 value (so that you don't need SSL_set_session_id_context for each
7971 connection using the SSL_CTX).
7974 *) OAEP decoding bug fix.
7977 *) Support INSTALL_PREFIX for package builders, as proposed by
7981 *) New Configure options "threads" and "no-threads". For systems
7982 where the proper compiler options are known (currently Solaris
7983 and Linux), "threads" is the default.
7986 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7989 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7990 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7991 such as /usr/local/bin.
7994 *) "make linux-shared" to build shared libraries.
7995 [Niels Poppe <niels@netbox.org>]
7997 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8000 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8001 extension adding in x509 utility.
8004 *) Remove NOPROTO sections and error code comments.
8007 *) Partial rewrite of the DEF file generator to now parse the ANSI
8011 *) New Configure options --prefix=DIR and --openssldir=DIR.
8014 *) Complete rewrite of the error code script(s). It is all now handled
8015 by one script at the top level which handles error code gathering,
8016 header rewriting and C source file generation. It should be much better
8017 than the old method: it now uses a modified version of Ulf's parser to
8018 read the ANSI prototypes in all header files (thus the old K&R definitions
8019 aren't needed for error creation any more) and do a better job of
8020 translating function codes into names. The old 'ASN1 error code imbedded
8021 in a comment' is no longer necessary and it doesn't use .err files which
8022 have now been deleted. Also the error code call doesn't have to appear all
8023 on one line (which resulted in some large lines...).
8026 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8029 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8030 0 (which usually indicates a closed connection), but continue reading.
8033 *) Fix some race conditions.
8036 *) Add support for CRL distribution points extension. Add Certificate
8037 Policies and CRL distribution points documentation.
8040 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8043 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8044 8 of keying material. Merlin has also confirmed interop with this fix
8045 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8046 [Merlin Hughes <merlin@baltimore.ie>]
8048 *) Fix lots of warnings.
8049 [Richard Levitte <levitte@stacken.kth.se>]
8051 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8052 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8053 [Richard Levitte <levitte@stacken.kth.se>]
8055 *) Fix problems with sizeof(long) == 8.
8056 [Andy Polyakov <appro@fy.chalmers.se>]
8058 *) Change functions to ANSI C.
8061 *) Fix typos in error codes.
8062 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8064 *) Remove defunct assembler files from Configure.
8067 *) SPARC v8 assembler BIGNUM implementation.
8068 [Andy Polyakov <appro@fy.chalmers.se>]
8070 *) Support for Certificate Policies extension: both print and set.
8071 Various additions to support the r2i method this uses.
8074 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8075 return a const string when you are expecting an allocated buffer.
8078 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8079 types DirectoryString and DisplayText.
8082 *) Add code to allow r2i extensions to access the configuration database,
8083 add an LHASH database driver and add several ctx helper functions.
8086 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8087 fail when they extended the size of a BIGNUM.
8090 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8091 support typesafe stack.
8094 *) Fix typo in SSL_[gs]et_options().
8095 [Nils Frostberg <nils@medcom.se>]
8097 *) Delete various functions and files that belonged to the (now obsolete)
8098 old X509V3 handling code.
8101 *) New Configure option "rsaref".
8104 *) Don't auto-generate pem.h.
8107 *) Introduce type-safe ASN.1 SETs.
8110 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8111 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8113 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8114 that links with OpenSSL (well at least cause lots of warnings), but fear
8115 not: the conversion is trivial, and it eliminates loads of evil casts. A
8116 few STACKed things have been converted already. Feel free to convert more.
8117 In the fullness of time, I'll do away with the STACK type altogether.
8120 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8121 specified in <certfile> by updating the entry in the index.txt file.
8122 This way one no longer has to edit the index.txt file manually for
8123 revoking a certificate. The -revoke option does the gory details now.
8124 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8126 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8127 `-text' option at all and this way the `-noout -text' combination was
8128 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8129 [Ralf S. Engelschall]
8131 *) Make sure a corresponding plain text error message exists for the
8132 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8133 verify callback function determined that a certificate was revoked.
8134 [Ralf S. Engelschall]
8136 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8137 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8138 all available cipers including rc5, which was forgotten until now.
8139 In order to let the testing shell script know which algorithms
8140 are available, a new (up to now undocumented) command
8141 "openssl list-cipher-commands" is used.
8144 *) Bugfix: s_client occasionally would sleep in select() when
8145 it should have checked SSL_pending() first.
8148 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8149 the raw DSA values prior to ASN.1 encoding.
8152 *) Tweaks to Configure
8153 [Niels Poppe <niels@netbox.org>]
8155 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8159 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8162 *) New config option to avoid instructions that are illegal on the 80386.
8163 The default code is faster, but requires at least a 486.
8166 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8167 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8168 same as SSL2_VERSION anyway.
8171 *) New "-showcerts" option for s_client.
8174 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8175 application. Various cleanups and fixes.
8178 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8179 modify error routines to work internally. Add error codes and PBE init
8180 to library startup routines.
8183 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8184 packing functions to asn1 and evp. Changed function names and error
8185 codes along the way.
8188 *) PKCS12 integration: and so it begins... First of several patches to
8189 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8190 objects to objects.h
8193 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8194 and display support for Thawte strong extranet extension.
8197 *) Add LinuxPPC support.
8198 [Jeff Dubrule <igor@pobox.org>]
8200 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8201 bn_div_words in alpha.s.
8202 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8204 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8205 OAEP isn't supported when OpenSSL is built with RSAref.
8206 [Ulf Moeller <ulf@fitug.de>]
8208 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8209 so they no longer are missing under -DNOPROTO.
8210 [Soren S. Jorvang <soren@t.dk>]
8213 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8215 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8216 doesn't work when the session is reused. Coming soon!
8219 *) Fix a security hole, that allows sessions to be reused in the wrong
8220 context thus bypassing client cert protection! All software that uses
8221 client certs and session caches in multiple contexts NEEDS PATCHING to
8222 allow session reuse! A fuller solution is in the works.
8223 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8225 *) Some more source tree cleanups (removed obsolete files
8226 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8227 permission on "config" script to be executable) and a fix for the INSTALL
8229 [Ulf Moeller <ulf@fitug.de>]
8231 *) Remove some legacy and erroneous uses of malloc, free instead of
8233 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8235 *) Make rsa_oaep_test return non-zero on error.
8236 [Ulf Moeller <ulf@fitug.de>]
8238 *) Add support for native Solaris shared libraries. Configure
8239 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8240 if someone would make that last step automatic.
8241 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8243 *) ctx_size was not built with the right compiler during "make links". Fixed.
8246 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8247 except NULL ciphers". This means the default cipher list will no longer
8248 enable NULL ciphers. They need to be specifically enabled e.g. with
8249 the string "DEFAULT:eNULL".
8252 *) Fix to RSA private encryption routines: if p < q then it would
8253 occasionally produce an invalid result. This will only happen with
8254 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8257 *) Be less restrictive and allow also `perl util/perlpath.pl
8258 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8259 because this way one can also use an interpreter named `perl5' (which is
8260 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8261 installed as `perl').
8262 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8264 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8265 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8267 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8268 advapi32.lib to Win32 build and change the pem test comparision
8269 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8270 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8271 and crypto/des/ede_cbcm_enc.c.
8274 *) DES quad checksum was broken on big-endian architectures. Fixed.
8277 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8278 Win32 test batch file so it (might) work again. The Win32 test batch file
8279 is horrible: I feel ill....
8282 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8283 in e_os.h. Audit of header files to check ANSI and non ANSI
8284 sections: 10 functions were absent from non ANSI section and not exported
8285 from Windows DLLs. Fixed up libeay.num for new functions.
8288 *) Make `openssl version' output lines consistent.
8289 [Ralf S. Engelschall]
8291 *) Fix Win32 symbol export lists for BIO functions: Added
8292 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8293 to ms/libeay{16,32}.def.
8294 [Ralf S. Engelschall]
8296 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8297 fine under Unix and passes some trivial tests I've now added. But the
8298 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8299 added to make sure no one expects that this stuff really works in the
8300 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8301 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8303 [Ralf S. Engelschall]
8305 *) Fix the generation of two part addresses in perl.
8306 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8308 *) Add config entry for Linux on MIPS.
8309 [John Tobey <jtobey@channel1.com>]
8311 *) Make links whenever Configure is run, unless we are on Windoze.
8314 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8315 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8319 *) Add a useful kludge to allow package maintainers to specify compiler and
8320 other platforms details on the command line without having to patch the
8321 Configure script everytime: One now can use ``perl Configure
8322 <id>:<details>'', i.e. platform ids are allowed to have details appended
8323 to them (seperated by colons). This is treated as there would be a static
8324 pre-configured entry in Configure's %table under key <id> with value
8325 <details> and ``perl Configure <id>'' is called. So, when you want to
8326 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8327 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8328 now, which overrides the FreeBSD-elf entry on-the-fly.
8329 [Ralf S. Engelschall]
8331 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8334 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8335 on the `perl Configure ...' command line. This way one can compile
8336 OpenSSL libraries with Position Independent Code (PIC) which is needed
8337 for linking it into DSOs.
8338 [Ralf S. Engelschall]
8340 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8344 *) Cleaned up the LICENSE document: The official contact for any license
8345 questions now is the OpenSSL core team under openssl-core@openssl.org.
8346 And add a paragraph about the dual-license situation to make sure people
8347 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8348 to the OpenSSL toolkit.
8349 [Ralf S. Engelschall]
8351 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8352 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8353 Additonally cleaned up the `make links' target: Remove unnecessary
8354 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8355 to speed processing and no longer clutter the display with confusing
8356 stuff. Instead only the actually done links are displayed.
8357 [Ralf S. Engelschall]
8359 *) Permit null encryption ciphersuites, used for authentication only. It used
8360 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8361 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8365 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8366 signed attributes when verifying signatures (this would break them),
8367 the detached data encoding was wrong and public keys obtained using
8368 X509_get_pubkey() weren't freed.
8371 *) Add text documentation for the BUFFER functions. Also added a work around
8372 to a Win95 console bug. This was triggered by the password read stuff: the
8373 last character typed gets carried over to the next fread(). If you were
8374 generating a new cert request using 'req' for example then the last
8375 character of the passphrase would be CR which would then enter the first
8379 *) Added the new `Includes OpenSSL Cryptography Software' button as
8380 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8381 button and can be used by applications based on OpenSSL to show the
8382 relationship to the OpenSSL project.
8383 [Ralf S. Engelschall]
8385 *) Remove confusing variables in function signatures in files
8386 ssl/ssl_lib.c and ssl/ssl.h.
8387 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8389 *) Don't install bss_file.c under PREFIX/include/
8390 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8392 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8393 functions that return function pointers and has support for NT specific
8394 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8395 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8396 unsigned to signed types: this was killing the Win32 compile.
8399 *) Add new certificate file to stack functions,
8400 SSL_add_dir_cert_subjects_to_stack() and
8401 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8402 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8403 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8404 This means that Apache-SSL and similar packages don't have to mess around
8405 to add as many CAs as they want to the preferred list.
8408 *) Experiment with doxygen documentation. Currently only partially applied to
8410 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8411 openssl.doxy as the configuration file.
8414 *) Get rid of remaining C++-style comments which strict C compilers hate.
8415 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8417 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8418 compiled in by default: it has problems with large keys.
8421 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8422 DH private keys and/or callback functions which directly correspond to
8423 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8424 is needed for applications which have to configure certificates on a
8425 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8427 For the RSA certificate situation is makes no difference, but
8428 for the DSA certificate situation this fixes the "no shared cipher"
8429 problem where the OpenSSL cipher selection procedure failed because the
8430 temporary keys were not overtaken from the context and the API provided
8431 no way to reconfigure them.
8432 The new functions now let applications reconfigure the stuff and they
8433 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8434 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8435 non-public-API function ssl_cert_instantiate() is used as a helper
8436 function and also to reduce code redundancy inside ssl_rsa.c.
8437 [Ralf S. Engelschall]
8439 *) Move s_server -dcert and -dkey options out of the undocumented feature
8440 area because they are useful for the DSA situation and should be
8441 recognized by the users.
8442 [Ralf S. Engelschall]
8444 *) Fix the cipher decision scheme for export ciphers: the export bits are
8445 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8446 SSL_EXP_MASK. So, the original variable has to be used instead of the
8447 already masked variable.
8448 [Richard Levitte <levitte@stacken.kth.se>]
8450 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8451 [Richard Levitte <levitte@stacken.kth.se>]
8453 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8454 from `int' to `unsigned int' because it's a length and initialized by
8455 EVP_DigestFinal() which expects an `unsigned int *'.
8456 [Richard Levitte <levitte@stacken.kth.se>]
8458 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8459 script. Instead use the usual Shell->Perl transition trick.
8460 [Ralf S. Engelschall]
8462 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8463 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8464 -noout -modulus' as it's already the case for `openssl rsa -noout
8465 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8466 currently the public key is printed (a decision which was already done by
8467 `openssl dsa -modulus' in the past) which serves a similar purpose.
8468 Additionally the NO_RSA no longer completely removes the whole -modulus
8469 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8471 [Ralf S. Engelschall]
8473 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8474 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8475 [Arne Ansper <arne@ats.cyber.ee>]
8477 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8478 to be added. Now both 'req' and 'ca' can use new objects defined in the
8482 *) Add cool BIO that does syslog (or event log on NT).
8483 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8485 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8486 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8487 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8488 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8491 *) Add preliminary config info for new extension code.
8494 *) Make RSA_NO_PADDING really use no padding.
8495 [Ulf Moeller <ulf@fitug.de>]
8497 *) Generate errors when private/public key check is done.
8500 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8501 for some CRL extensions and new objects added.
8504 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8505 key usage extension and fuller support for authority key id.
8508 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8509 padding method for RSA, which is recommended for new applications in PKCS
8510 #1 v2.0 (RFC 2437, October 1998).
8511 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8512 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8513 against Bleichbacher's attack on RSA.
8514 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8517 *) Updates to the new SSL compression code
8518 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8520 *) Fix so that the version number in the master secret, when passed
8521 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8522 (because the server will not accept higher), that the version number
8523 is 0x03,0x01, not 0x03,0x00
8524 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8526 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8527 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8528 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8531 *) Support for RAW extensions where an arbitrary extension can be
8532 created by including its DER encoding. See apps/openssl.cnf for
8536 *) Make sure latest Perl versions don't interpret some generated C array
8537 code as Perl array code in the crypto/err/err_genc.pl script.
8538 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8540 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8541 not many people have the assembler. Various Win32 compilation fixes and
8542 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8546 *) Modify configure script 'Configure' to automatically create crypto/date.h
8547 file under Win32 and also build pem.h from pem.org. New script
8548 util/mkfiles.pl to create the MINFO file on environments that can't do a
8549 'make files': perl util/mkfiles.pl >MINFO should work.
8552 *) Major rework of DES function declarations, in the pursuit of correctness
8553 and purity. As a result, many evil casts evaporated, and some weirdness,
8554 too. You may find this causes warnings in your code. Zapping your evil
8555 casts will probably fix them. Mostly.
8558 *) Fix for a typo in asn1.h. Bug fix to object creation script
8559 obj_dat.pl. It considered a zero in an object definition to mean
8560 "end of object": none of the objects in objects.h have any zeros
8561 so it wasn't spotted.
8562 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8564 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8565 Masking (CBCM). In the absence of test vectors, the best I have been able
8566 to do is check that the decrypt undoes the encrypt, so far. Send me test
8567 vectors if you have them.
8570 *) Correct calculation of key length for export ciphers (too much space was
8571 allocated for null ciphers). This has not been tested!
8574 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8575 message is now correct (it understands "crypto" and "ssl" on its
8576 command line). There is also now an "update" option. This will update
8577 the util/ssleay.num and util/libeay.num files with any new functions.
8579 perl util/mkdef.pl crypto ssl update
8580 it will update them.
8583 *) Overhauled the Perl interface (perl/*):
8584 - ported BN stuff to OpenSSL's different BN library
8585 - made the perl/ source tree CVS-aware
8586 - renamed the package from SSLeay to OpenSSL (the files still contain
8587 their history because I've copied them in the repository)
8588 - removed obsolete files (the test scripts will be replaced
8589 by better Test::Harness variants in the future)
8590 [Ralf S. Engelschall]
8592 *) First cut for a very conservative source tree cleanup:
8593 1. merge various obsolete readme texts into doc/ssleay.txt
8594 where we collect the old documents and readme texts.
8595 2. remove the first part of files where I'm already sure that we no
8596 longer need them because of three reasons: either they are just temporary
8597 files which were left by Eric or they are preserved original files where
8598 I've verified that the diff is also available in the CVS via "cvs diff
8599 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8600 the crypto/md/ stuff).
8601 [Ralf S. Engelschall]
8603 *) More extension code. Incomplete support for subject and issuer alt
8604 name, issuer and authority key id. Change the i2v function parameters
8605 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8606 what that's for :-) Fix to ASN1 macro which messed up
8607 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8610 *) Preliminary support for ENUMERATED type. This is largely copied from the
8614 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8615 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8617 *) Make sure `make rehash' target really finds the `openssl' program.
8618 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8620 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8621 like to hear about it if this slows down other processors.
8624 *) Add CygWin32 platform information to Configure script.
8625 [Alan Batie <batie@aahz.jf.intel.com>]
8627 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8628 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8630 *) New program nseq to manipulate netscape certificate sequences
8633 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8637 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8638 but the BN code had some problems that would cause failures when
8639 doing certificate verification and some other functions.
8640 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8642 *) Add ASN1 and PEM code to support netscape certificate sequences.
8645 *) Add ASN1 and PEM code to support netscape certificate sequences.
8648 *) Add several PKIX and private extended key usage OIDs.
8651 *) Modify the 'ca' program to handle the new extension code. Modify
8652 openssl.cnf for new extension format, add comments.
8655 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8656 and add a sample to openssl.cnf so req -x509 now adds appropriate
8660 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8661 error code, add initial support to X509_print() and x509 application.
8664 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8665 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8666 stuff is currently isolated and isn't even compiled yet.
8669 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8670 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8671 Removed the versions check from X509 routines when loading extensions:
8672 this allows certain broken certificates that don't set the version
8673 properly to be processed.
8676 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8677 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8678 can still be regenerated with "make depend".
8681 *) Spelling mistake in C version of CAST-128.
8682 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8684 *) Changes to the error generation code. The perl script err-code.pl
8685 now reads in the old error codes and retains the old numbers, only
8686 adding new ones if necessary. It also only changes the .err files if new
8687 codes are added. The makefiles have been modified to only insert errors
8688 when needed (to avoid needlessly modifying header files). This is done
8689 by only inserting errors if the .err file is newer than the auto generated
8690 C file. To rebuild all the error codes from scratch (the old behaviour)
8691 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8692 or delete all the .err files.
8695 *) CAST-128 was incorrectly implemented for short keys. The C version has
8696 been fixed, but is untested. The assembler versions are also fixed, but
8697 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8698 to regenerate it if needed.
8699 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8700 Hagino <itojun@kame.net>]
8702 *) File was opened incorrectly in randfile.c.
8703 [Ulf Möller <ulf@fitug.de>]
8705 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8706 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8707 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8708 al: it's just almost always a UTCTime. Note this patch adds new error
8709 codes so do a "make errors" if there are problems.
8712 *) Correct Linux 1 recognition in config.
8713 [Ulf Möller <ulf@fitug.de>]
8715 *) Remove pointless MD5 hash when using DSA keys in ca.
8716 [Anonymous <nobody@replay.com>]
8718 *) Generate an error if given an empty string as a cert directory. Also
8719 generate an error if handed NULL (previously returned 0 to indicate an
8720 error, but didn't set one).
8721 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8723 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8726 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8727 parameters. This was causing a warning which killed off the Win32 compile.
8730 *) Remove C++ style comments from crypto/bn/bn_local.h.
8731 [Neil Costigan <neil.costigan@celocom.com>]
8733 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8734 based on a text string, looking up short and long names and finally
8735 "dot" format. The "dot" format stuff didn't work. Added new function
8736 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8737 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8738 OID is not part of the table.
8741 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8742 X509_LOOKUP_by_alias().
8745 *) Sort openssl functions by name.
8748 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8749 encryption from sample DSA keys (in case anyone is interested the password
8753 *) Make _all_ *_free functions accept a NULL pointer.
8754 [Frans Heymans <fheymans@isaserver.be>]
8756 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8758 [Anonymous <nobody@replay.com>]
8760 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8761 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8763 *) Don't blow it for numeric -newkey arguments to apps/req.
8764 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8766 *) Temp key "for export" tests were wrong in s3_srvr.c.
8767 [Anonymous <nobody@replay.com>]
8769 *) Add prototype for temp key callback functions
8770 SSL_CTX_set_tmp_{rsa,dh}_callback().
8773 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8774 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8777 *) X509_name_add_entry() freed the wrong thing after an error.
8778 [Arne Ansper <arne@ats.cyber.ee>]
8780 *) rsa_eay.c would attempt to free a NULL context.
8781 [Arne Ansper <arne@ats.cyber.ee>]
8783 *) BIO_s_socket() had a broken should_retry() on Windoze.
8784 [Arne Ansper <arne@ats.cyber.ee>]
8786 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8787 [Arne Ansper <arne@ats.cyber.ee>]
8789 *) Make sure the already existing X509_STORE->depth variable is initialized
8790 in X509_STORE_new(), but document the fact that this variable is still
8791 unused in the certificate verification process.
8792 [Ralf S. Engelschall]
8794 *) Fix the various library and apps files to free up pkeys obtained from
8795 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8798 *) Fix reference counting in X509_PUBKEY_get(). This makes
8799 demos/maurice/example2.c work, amongst others, probably.
8800 [Steve Henson and Ben Laurie]
8802 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8803 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8804 are no longer created. This way we have a single and consistent command
8805 line interface `openssl <command>', similar to `cvs <command>'.
8806 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8808 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8809 BIT STRING wrapper always have zero unused bits.
8812 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8815 *) Make the top-level INSTALL documentation easier to understand.
8818 *) Makefiles updated to exit if an error occurs in a sub-directory
8819 make (including if user presses ^C) [Paul Sutton]
8821 *) Make Montgomery context stuff explicit in RSA data structure.
8824 *) Fix build order of pem and err to allow for generated pem.h.
8827 *) Fix renumbering bug in X509_NAME_delete_entry().
8830 *) Enhanced the err-ins.pl script so it makes the error library number
8831 global and can add a library name. This is needed for external ASN1 and
8832 other error libraries.
8835 *) Fixed sk_insert which never worked properly.
8838 *) Fix ASN1 macros so they can handle indefinite length construted
8839 EXPLICIT tags. Some non standard certificates use these: they can now
8843 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8844 into a single doc/ssleay.txt bundle. This way the information is still
8845 preserved but no longer messes up this directory. Now it's new room for
8846 the new set of documenation files.
8847 [Ralf S. Engelschall]
8849 *) SETs were incorrectly DER encoded. This was a major pain, because they
8850 shared code with SEQUENCEs, which aren't coded the same. This means that
8851 almost everything to do with SETs or SEQUENCEs has either changed name or
8852 number of arguments.
8853 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8855 *) Fix test data to work with the above.
8858 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8859 was already fixed by Eric for 0.9.1 it seems.
8860 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8862 *) Autodetect FreeBSD3.
8865 *) Fix various bugs in Configure. This affects the following platforms:
8869 unixware-2.0-pentium
8873 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8874 before they are needed.
8877 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8881 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8883 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8884 changed SSLeay to OpenSSL in version strings.
8885 [Ralf S. Engelschall]
8887 *) Some fixups to the top-level documents.
8890 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8891 because the symlink to include/ was missing.
8892 [Ralf S. Engelschall]
8894 *) Incorporated the popular no-RSA/DSA-only patches
8895 which allow to compile a RSA-free SSLeay.
8896 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8898 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8899 when "ssleay" is still not found.
8900 [Ralf S. Engelschall]
8902 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8903 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8905 *) Updated the README file.
8906 [Ralf S. Engelschall]
8908 *) Added various .cvsignore files in the CVS repository subdirs
8909 to make a "cvs update" really silent.
8910 [Ralf S. Engelschall]
8912 *) Recompiled the error-definition header files and added
8913 missing symbols to the Win32 linker tables.
8914 [Ralf S. Engelschall]
8916 *) Cleaned up the top-level documents;
8917 o new files: CHANGES and LICENSE
8918 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8919 o merged COPYRIGHT into LICENSE
8920 o removed obsolete TODO file
8921 o renamed MICROSOFT to INSTALL.W32
8922 [Ralf S. Engelschall]
8924 *) Removed dummy files from the 0.9.1b source tree:
8925 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8926 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8927 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8928 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8929 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8930 [Ralf S. Engelschall]
8932 *) Added various platform portability fixes.
8935 *) The Genesis of the OpenSSL rpject:
8936 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8937 Young and Tim J. Hudson created while they were working for C2Net until
8939 [The OpenSSL Project]
8942 Changes between 0.9.0b and 0.9.1b [not released]
8944 *) Updated a few CA certificates under certs/
8947 *) Changed some BIGNUM api stuff.
8950 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8951 DGUX x86, Linux Alpha, etc.
8954 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8955 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8959 *) Add -strparse option to asn1pars program which parses nested
8961 [Dr Stephen Henson <shenson@bigfoot.com>]
8963 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8966 *) DSA fix for "ca" program.
8969 *) Added "-genkey" option to "dsaparam" program.
8972 *) Added RIPE MD160 (rmd160) message digest.
8975 *) Added -a (all) option to "ssleay version" command.
8978 *) Added PLATFORM define which is the id given to Configure.
8981 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8984 *) Extended the ASN.1 parser routines.
8987 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8990 *) Added a BN_CTX to the BN library.
8993 *) Fixed the weak key values in DES library
8996 *) Changed API in EVP library for cipher aliases.
8999 *) Added support for RC2/64bit cipher.
9002 *) Converted the lhash library to the crypto/mem.c functions.
9005 *) Added more recognized ASN.1 object ids.
9008 *) Added more RSA padding checks for SSL/TLS.
9011 *) Added BIO proxy/filter functionality.
9014 *) Added extra_certs to SSL_CTX which can be used
9015 send extra CA certificates to the client in the CA cert chain sending
9016 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9019 *) Now Fortezza is denied in the authentication phase because
9020 this is key exchange mechanism is not supported by SSLeay at all.
9023 *) Additional PKCS1 checks.
9026 *) Support the string "TLSv1" for all TLS v1 ciphers.
9029 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9030 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9033 *) Fixed a few memory leaks.
9036 *) Fixed various code and comment typos.
9039 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9040 bytes sent in the client random.
9041 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob