5 Changes between 1.0.0 and 1.0.0a [xx XXX xxxx]
9 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
11 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
12 context. The operation can be customised via the ctrl mechanism in
13 case ENGINEs want to include additional functionality.
16 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
19 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
20 output hashes compatible with older versions of OpenSSL.
21 [Willy Weisz <weisz@vcpc.univie.ac.at>]
23 *) Fix compression algorithm handling: if resuming a session use the
24 compression algorithm of the resumed session instead of determining
25 it from client hello again. Don't allow server to change algorithm.
28 *) Add load_crls() function to apps tidying load_certs() too. Add option
29 to verify utility to allow additional CRLs to be included.
32 *) Update OCSP request code to permit adding custom headers to the request:
33 some responders need this.
36 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
38 [Julia Lawall <julia@diku.dk>]
40 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
41 needlessly dereferenced structures, used obsolete functions and
42 didn't handle all updated verify codes correctly.
45 *) Disable MD2 in the default configuration.
48 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
49 indicate the initial BIO being pushed or popped. This makes it possible
50 to determine whether the BIO is the one explicitly called or as a result
51 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
52 it handles reference counts correctly and doesn't zero out the I/O bio
53 when it is not being explicitly popped. WARNING: applications which
54 included workarounds for the old buggy behaviour will need to be modified
55 or they could free up already freed BIOs.
58 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
59 renaming to all platforms (within the 0.9.8 branch, this was
60 done conditionally on Netware platforms to avoid a name clash).
61 [Guenter <lists@gknw.net>]
63 *) Add ECDHE and PSK support to DTLS.
64 [Michael Tuexen <tuexen@fh-muenster.de>]
66 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
70 *) Add "missing" function EVP_MD_flags() (without this the only way to
71 retrieve a digest flags is by accessing the structure directly. Update
72 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
73 or cipher is registered as in the "from" argument. Print out all
74 registered digests in the dgst usage message instead of manually
75 attempting to work them out.
78 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
79 this allows the use of compression and extensions. Change default cipher
80 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
81 by default unless an application cipher string requests it.
84 *) Alter match criteria in PKCS12_parse(). It used to try to use local
85 key ids to find matching certificates and keys but some PKCS#12 files
86 don't follow the (somewhat unwritten) rules and this strategy fails.
87 Now just gather all certificates together and the first private key
88 then look for the first certificate that matches the key.
91 *) Support use of registered digest and cipher names for dgst and cipher
92 commands instead of having to add each one as a special case. So now
99 openssl dgst -sha256 foo
101 and this works for ENGINE based algorithms too.
105 *) Update Gost ENGINE to support parameter files.
106 [Victor B. Wagner <vitus@cryptocom.ru>]
108 *) Support GeneralizedTime in ca utility.
109 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
111 *) Enhance the hash format used for certificate directory links. The new
112 form uses the canonical encoding (meaning equivalent names will work
113 even if they aren't identical) and uses SHA1 instead of MD5. This form
114 is incompatible with the older format and as a result c_rehash should
115 be used to rebuild symbolic links.
118 *) Make PKCS#8 the default write format for private keys, replacing the
119 traditional format. This form is standardised, more secure and doesn't
120 include an implicit MD5 dependency.
123 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
124 committed to OpenSSL should pass this lot as a minimum.
127 *) Add session ticket override functionality for use by EAP-FAST.
128 [Jouni Malinen <j@w1.fi>]
130 *) Modify HMAC functions to return a value. Since these can be implemented
131 in an ENGINE errors can occur.
134 *) Type-checked OBJ_bsearch_ex.
137 *) Type-checked OBJ_bsearch. Also some constification necessitated
138 by type-checking. Still to come: TXT_DB, bsearch(?),
139 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
143 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
144 seconds to a tm structure directly, instead of going through OS
145 specific date routines. This avoids any issues with OS routines such
146 as the year 2038 bug. New *_adj() functions for ASN1 time structures
147 and X509_time_adj_ex() to cover the extended range. The existing
148 X509_time_adj() is still usable and will no longer have any date issues.
151 *) Delta CRL support. New use deltas option which will attempt to locate
152 and search any appropriate delta CRLs available.
154 This work was sponsored by Google.
157 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
158 code and add additional score elements. Validate alternate CRL paths
159 as part of the CRL checking and indicate a new error "CRL path validation
160 error" in this case. Applications wanting additional details can use
161 the verify callback and check the new "parent" field. If this is not
162 NULL CRL path validation is taking place. Existing applications wont
163 see this because it requires extended CRL support which is off by
166 This work was sponsored by Google.
169 *) Support for freshest CRL extension.
171 This work was sponsored by Google.
174 *) Initial indirect CRL support. Currently only supported in the CRLs
175 passed directly and not via lookup. Process certificate issuer
176 CRL entry extension and lookup CRL entries by bother issuer name
177 and serial number. Check and process CRL issuer entry in IDP extension.
179 This work was sponsored by Google.
182 *) Add support for distinct certificate and CRL paths. The CRL issuer
183 certificate is validated separately in this case. Only enabled if
184 an extended CRL support flag is set: this flag will enable additional
185 CRL functionality in future.
187 This work was sponsored by Google.
190 *) Add support for policy mappings extension.
192 This work was sponsored by Google.
195 *) Fixes to pathlength constraint, self issued certificate handling,
196 policy processing to align with RFC3280 and PKITS tests.
198 This work was sponsored by Google.
201 *) Support for name constraints certificate extension. DN, email, DNS
202 and URI types are currently supported.
204 This work was sponsored by Google.
207 *) To cater for systems that provide a pointer-based thread ID rather
208 than numeric, deprecate the current numeric thread ID mechanism and
209 replace it with a structure and associated callback type. This
210 mechanism allows a numeric "hash" to be extracted from a thread ID in
211 either case, and on platforms where pointers are larger than 'long',
212 mixing is done to help ensure the numeric 'hash' is usable even if it
213 can't be guaranteed unique. The default mechanism is to use "&errno"
214 as a pointer-based thread ID to distinguish between threads.
216 Applications that want to provide their own thread IDs should now use
217 CRYPTO_THREADID_set_callback() to register a callback that will call
218 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
220 Note that ERR_remove_state() is now deprecated, because it is tied
221 to the assumption that thread IDs are numeric. ERR_remove_state(0)
222 to free the current thread's error state should be replaced by
223 ERR_remove_thread_state(NULL).
225 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
226 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
227 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
228 application was previously providing a numeric thread callback that
229 was inappropriate for distinguishing threads, then uniqueness might
230 have been obtained with &errno that happened immediately in the
231 intermediate development versions of OpenSSL; this is no longer the
232 case, the numeric thread callback will now override the automatic use
234 [Geoff Thorpe, with help from Bodo Moeller]
236 *) Initial support for different CRL issuing certificates. This covers a
237 simple case where the self issued certificates in the chain exist and
238 the real CRL issuer is higher in the existing chain.
240 This work was sponsored by Google.
243 *) Removed effectively defunct crypto/store from the build.
246 *) Revamp of STACK to provide stronger type-checking. Still to come:
247 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
248 ASN1_STRING, CONF_VALUE.
251 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
252 RAM on SSL connections. This option can save about 34k per idle SSL.
255 *) Revamp of LHASH to provide stronger type-checking. Still to come:
256 STACK, TXT_DB, bsearch, qsort.
259 *) Initial support for Cryptographic Message Syntax (aka CMS) based
260 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
261 support for data, signedData, compressedData, digestedData and
262 encryptedData, envelopedData types included. Scripts to check against
263 RFC4134 examples draft and interop and consistency checks of many
264 content types and variants.
267 *) Add options to enc utility to support use of zlib compression BIO.
270 *) Extend mk1mf to support importing of options and assembly language
271 files from Configure script, currently only included in VC-WIN32.
272 The assembly language rules can now optionally generate the source
273 files from the associated perl scripts.
276 *) Implement remaining functionality needed to support GOST ciphersuites.
277 Interop testing has been performed using CryptoPro implementations.
278 [Victor B. Wagner <vitus@cryptocom.ru>]
280 *) s390x assembler pack.
283 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
287 *) Implement Opaque PRF Input TLS extension as specified in
288 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
289 official specification yet and no extension type assignment by
290 IANA exists, this extension (for now) will have to be explicitly
291 enabled when building OpenSSL by providing the extension number
292 to use. For example, specify an option
294 -DTLSEXT_TYPE_opaque_prf_input=0x9527
296 to the "config" or "Configure" script to enable the extension,
297 assuming extension number 0x9527 (which is a completely arbitrary
298 and unofficial assignment based on the MD5 hash of the Internet
299 Draft). Note that by doing so, you potentially lose
300 interoperability with other TLS implementations since these might
301 be using the same extension number for other purposes.
303 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
304 opaque PRF input value to use in the handshake. This will create
305 an interal copy of the length-'len' string at 'src', and will
306 return non-zero for success.
308 To get more control and flexibility, provide a callback function
311 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
312 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
316 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
319 Callback function 'cb' will be called in handshakes, and is
320 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
321 Argument 'arg' is for application purposes (the value as given to
322 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
323 be provided to the callback function). The callback function
324 has to return non-zero to report success: usually 1 to use opaque
325 PRF input just if possible, or 2 to enforce use of the opaque PRF
326 input. In the latter case, the library will abort the handshake
327 if opaque PRF input is not successfully negotiated.
329 Arguments 'peerinput' and 'len' given to the callback function
330 will always be NULL and 0 in the case of a client. A server will
331 see the client's opaque PRF input through these variables if
332 available (NULL and 0 otherwise). Note that if the server
333 provides an opaque PRF input, the length must be the same as the
334 length of the client's opaque PRF input.
336 Note that the callback function will only be called when creating
337 a new session (session resumption can resume whatever was
338 previously negotiated), and will not be called in SSL 2.0
339 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
340 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
341 for applications that need to enforce opaque PRF input.
345 *) Update ssl code to support digests other than SHA1+MD5 for handshake
348 [Victor B. Wagner <vitus@cryptocom.ru>]
350 *) Add RFC4507 support to OpenSSL. This includes the corrections in
351 RFC4507bis. The encrypted ticket format is an encrypted encoded
352 SSL_SESSION structure, that way new session features are automatically
355 If a client application caches session in an SSL_SESSION structure
356 support is transparent because tickets are now stored in the encoded
359 The SSL_CTX structure automatically generates keys for ticket
360 protection in servers so again support should be possible
361 with no application modification.
363 If a client or server wishes to disable RFC4507 support then the option
364 SSL_OP_NO_TICKET can be set.
366 Add a TLS extension debugging callback to allow the contents of any client
367 or server extensions to be examined.
369 This work was sponsored by Google.
372 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
373 OpenSSL should now compile cleanly on gcc 4.2
374 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
376 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
377 support including streaming MAC support: this is required for GOST
379 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
381 *) Add option -stream to use PKCS#7 streaming in smime utility. New
382 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
383 to output in BER and PEM format.
386 *) Experimental support for use of HMAC via EVP_PKEY interface. This
387 allows HMAC to be handled via the EVP_DigestSign*() interface. The
388 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
389 ENGINE support for HMAC keys which are unextractable. New -mac and
390 -macopt options to dgst utility.
393 *) New option -sigopt to dgst utility. Update dgst to use
394 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
395 alternative signing paramaters such as X9.31 or PSS in the dgst
399 *) Change ssl_cipher_apply_rule(), the internal function that does
400 the work each time a ciphersuite string requests enabling
401 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
402 removing ("!foo+bar") a class of ciphersuites: Now it maintains
403 the order of disabled ciphersuites such that those ciphersuites
404 that most recently went from enabled to disabled not only stay
405 in order with respect to each other, but also have higher priority
406 than other disabled ciphersuites the next time ciphersuites are
409 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
410 the same ciphersuites as with "HIGH" alone, but in a specific
411 order where the PSK ciphersuites come first (since they are the
412 most recently disabled ciphersuites when "HIGH" is parsed).
414 Also, change ssl_create_cipher_list() (using this new
415 funcionality) such that between otherwise identical
416 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
420 *) Change ssl_create_cipher_list() so that it automatically
421 arranges the ciphersuites in reasonable order before starting
422 to process the rule string. Thus, the definition for "DEFAULT"
423 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
424 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
425 This makes it much easier to arrive at a reasonable default order
426 in applications for which anonymous ciphers are OK (meaning
427 that you can't actually use DEFAULT).
428 [Bodo Moeller; suggested by Victor Duchovni]
430 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
431 processing) into multiple integers instead of setting
432 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
433 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
434 (These masks as well as the individual bit definitions are hidden
435 away into the non-exported interface ssl/ssl_locl.h, so this
436 change to the definition of the SSL_CIPHER structure shouldn't
437 affect applications.) This give us more bits for each of these
438 categories, so there is no longer a need to coagulate AES128 and
439 AES256 into a single algorithm bit, and to coagulate Camellia128
440 and Camellia256 into a single algorithm bit, which has led to all
443 Thus, among other things, the kludge introduced in 0.9.7m and
444 0.9.8e for masking out AES256 independently of AES128 or masking
445 out Camellia256 independently of AES256 is not needed here in 0.9.9.
447 With the change, we also introduce new ciphersuite aliases that
448 so far were missing: "AES128", "AES256", "CAMELLIA128", and
452 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
453 Use the leftmost N bytes of the signature input if the input is
454 larger than the prime q (with N being the size in bytes of q).
457 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
458 it yet and it is largely untested.
461 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
464 *) Initial incomplete changes to avoid need for function casts in OpenSSL
465 some compilers (gcc 4.2 and later) reject their use. Safestack is
466 reimplemented. Update ASN1 to avoid use of legacy functions.
469 *) Win32/64 targets are linked with Winsock2.
472 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
473 to external functions. This can be used to increase CRL handling
474 efficiency especially when CRLs are very large by (for example) storing
475 the CRL revoked certificates in a database.
478 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
479 new CRLs added to a directory can be used. New command line option
480 -verify_return_error to s_client and s_server. This causes real errors
481 to be returned by the verify callback instead of carrying on no matter
482 what. This reflects the way a "real world" verify callback would behave.
485 *) GOST engine, supporting several GOST algorithms and public key formats.
486 Kindly donated by Cryptocom.
489 *) Partial support for Issuing Distribution Point CRL extension. CRLs
490 partitioned by DP are handled but no indirect CRL or reason partitioning
491 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
492 selected via a scoring technique which handles IDP and AKID in CRLs.
495 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
496 will ultimately be used for all verify operations: this will remove the
497 X509_STORE dependency on certificate verification and allow alternative
498 lookup methods. X509_STORE based implementations of these two callbacks.
501 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
502 Modify get_crl() to find a valid (unexpired) CRL if possible.
505 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
506 this would be called X509_CRL_cmp() but that name is already used by
507 a function that just compares CRL issuer names. Cache several CRL
508 extensions in X509_CRL structure and cache CRLDP in X509.
511 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
512 this maps equivalent X509_NAME structures into a consistent structure.
513 Name comparison can then be performed rapidly using memcmp().
516 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
520 *) Allow digests to supply their own micalg string for S/MIME type using
521 the ctrl EVP_MD_CTRL_MICALG.
524 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
525 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
526 ctrl. It can then customise the structure before and/or after signing
530 *) New function OBJ_add_sigid() to allow application defined signature OIDs
531 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
532 to free up any added signature OIDs.
535 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
536 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
537 digest and cipher tables. New options added to openssl utility:
538 list-message-digest-algorithms and list-cipher-algorithms.
541 *) Change the array representation of binary polynomials: the list
542 of degrees of non-zero coefficients is now terminated with -1.
543 Previously it was terminated with 0, which was also part of the
544 value; thus, the array representation was not applicable to
545 polynomials where t^0 has coefficient zero. This change makes
546 the array representation useful in a more general context.
549 *) Various modifications and fixes to SSL/TLS cipher string
550 handling. For ECC, the code now distinguishes between fixed ECDH
551 with RSA certificates on the one hand and with ECDSA certificates
552 on the other hand, since these are separate ciphersuites. The
553 unused code for Fortezza ciphersuites has been removed.
555 For consistency with EDH, ephemeral ECDH is now called "EECDH"
556 (not "ECDHE"). For consistency with the code for DH
557 certificates, use of ECDH certificates is now considered ECDH
558 authentication, not RSA or ECDSA authentication (the latter is
559 merely the CA's signing algorithm and not actively used in the
562 The temporary ciphersuite alias "ECCdraft" is no longer
563 available, and ECC ciphersuites are no longer excluded from "ALL"
564 and "DEFAULT". The following aliases now exist for RFC 4492
565 ciphersuites, most of these by analogy with the DH case:
567 kECDHr - ECDH cert, signed with RSA
568 kECDHe - ECDH cert, signed with ECDSA
569 kECDH - ECDH cert (signed with either RSA or ECDSA)
570 kEECDH - ephemeral ECDH
571 ECDH - ECDH cert or ephemeral ECDH
577 AECDH - anonymous ECDH
578 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
582 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
583 Use correct micalg parameters depending on digest(s) in signed message.
586 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
587 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
590 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
591 an engine to register a method. Add ENGINE lookups for methods and
592 functional reference processing.
595 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
596 EVP_{Sign,Verify}* which allow an application to customise the signature
600 *) New -resign option to smime utility. This adds one or more signers
601 to an existing PKCS#7 signedData structure. Also -md option to use an
602 alternative message digest algorithm for signing.
605 *) Tidy up PKCS#7 routines and add new functions to make it easier to
606 create PKCS7 structures containing multiple signers. Update smime
607 application to support multiple signers.
610 *) New -macalg option to pkcs12 utility to allow setting of an alternative
614 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
615 Reorganize PBE internals to lookup from a static table using NIDs,
616 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
617 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
618 PRF which will be automatically used with PBES2.
621 *) Replace the algorithm specific calls to generate keys in "req" with the
625 *) Update PKCS#7 enveloped data routines to use new API. This is now
626 supported by any public key method supporting the encrypt operation. A
627 ctrl is added to allow the public key algorithm to examine or modify
628 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
632 *) Add a ctrl to asn1 method to allow a public key algorithm to express
633 a default digest type to use. In most cases this will be SHA1 but some
634 algorithms (such as GOST) need to specify an alternative digest. The
635 return value indicates how strong the prefernce is 1 means optional and
636 2 is mandatory (that is it is the only supported type). Modify
637 ASN1_item_sign() to accept a NULL digest argument to indicate it should
638 use the default md. Update openssl utilities to use the default digest
639 type for signing if it is not explicitly indicated.
642 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
643 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
644 signing method from the key type. This effectively removes the link
645 between digests and public key types.
648 *) Add an OID cross reference table and utility functions. Its purpose is to
649 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
650 rsaEncryption. This will allow some of the algorithm specific hackery
651 needed to use the correct OID to be removed.
654 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
655 structures for PKCS7_sign(). They are now set up by the relevant public
659 *) Add provisional EC pkey method with support for ECDSA and ECDH.
662 *) Add support for key derivation (agreement) in the API, DH method and
666 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
667 public and private key formats. As a side effect these add additional
668 command line functionality not previously available: DSA signatures can be
669 generated and verified using pkeyutl and DH key support and generation in
674 [Oliver Tappe <zooey@hirschkaefer.de>]
676 *) New make target "install_html_docs" installs HTML renditions of the
678 [Oliver Tappe <zooey@hirschkaefer.de>]
680 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
681 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
682 support key and parameter generation and add initial key generation
683 functionality for RSA.
686 *) Add functions for main EVP_PKEY_method operations. The undocumented
687 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
688 EVP_PKEY_{encrypt,decrypt}_old.
691 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
692 key API, doesn't do much yet.
695 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
696 public key algorithms. New option to openssl utility:
697 "list-public-key-algorithms" to print out info.
700 *) Implement the Supported Elliptic Curves Extension for
701 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
704 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
705 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
708 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
709 utilities such as rsa, dsa, dsaparam etc except they process any key
713 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
714 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
715 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
719 *) Initial support for pluggable public key ASN1.
720 De-spaghettify the public key ASN1 handling. Move public and private
721 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
722 algorithm specific handling to a single module within the relevant
723 algorithm directory. Add functions to allow (near) opaque processing
724 of public and private key structures.
727 *) Implement the Supported Point Formats Extension for
728 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
731 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
732 for the psk identity [hint] and the psk callback functions to the
733 SSL_SESSION, SSL and SSL_CTX structure.
736 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
740 SSL_CTX_use_psk_identity_hint
741 SSL_get_psk_identity_hint
743 SSL_use_psk_identity_hint
745 [Mika Kousa and Pasi Eronen of Nokia Corporation]
747 *) Add RFC 3161 compliant time stamp request creation, response generation
748 and response verification functionality.
749 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
751 *) Add initial support for TLS extensions, specifically for the server_name
752 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
753 have new members for a host name. The SSL data structure has an
754 additional member SSL_CTX *initial_ctx so that new sessions can be
755 stored in that context to allow for session resumption, even after the
756 SSL has been switched to a new SSL_CTX in reaction to a client's
757 server_name extension.
759 New functions (subject to change):
762 SSL_get_servername_type()
765 New CTRL codes and macros (subject to change):
767 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
768 - SSL_CTX_set_tlsext_servername_callback()
769 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
770 - SSL_CTX_set_tlsext_servername_arg()
771 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
773 openssl s_client has a new '-servername ...' option.
775 openssl s_server has new options '-servername_host ...', '-cert2 ...',
776 '-key2 ...', '-servername_fatal' (subject to change). This allows
777 testing the HostName extension for a specific single host name ('-cert'
778 and '-key' remain fallbacks for handshakes without HostName
779 negotiation). If the unrecogninzed_name alert has to be sent, this by
780 default is a warning; it becomes fatal with the '-servername_fatal'
783 [Peter Sylvester, Remy Allais, Christophe Renou]
785 *) Whirlpool hash implementation is added.
788 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
789 bn(64,32). Because of instruction set limitations it doesn't have
790 any negative impact on performance. This was done mostly in order
791 to make it possible to share assembler modules, such as bn_mul_mont
792 implementations, between 32- and 64-bit builds without hassle.
795 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
796 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
800 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
801 dedicated Montgomery multiplication procedure, is introduced.
802 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
803 "64-bit" performance on certain 32-bit targets.
806 *) New option SSL_OP_NO_COMP to disable use of compression selectively
807 in SSL structures. New SSL ctrl to set maximum send fragment size.
808 Save memory by seeting the I/O buffer sizes dynamically instead of
809 using the maximum available value.
812 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
813 in addition to the text details.
816 *) Very, very preliminary EXPERIMENTAL support for printing of general
817 ASN1 structures. This currently produces rather ugly output and doesn't
818 handle several customised structures at all.
821 *) Integrated support for PVK file format and some related formats such
822 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
823 these in the 'rsa' and 'dsa' utilities.
826 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
829 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
830 place for the (very old) "NETSCAPE" format certificates which are now
831 handled using new ASN1 code equivalents.
834 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
835 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
836 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
839 *) Modify CRL distribution points extension code to print out previously
840 unsupported fields. Enhance extension setting code to allow setting of
844 *) Add print and set support for Issuing Distribution Point CRL extension.
847 *) Change 'Configure' script to enable Camellia by default.
850 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
852 *) When rejecting SSL/TLS records due to an incorrect version number, never
853 update s->server with a new major version number. As of
854 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
855 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
856 the previous behavior could result in a read attempt at NULL when
857 receiving specific incorrect SSL/TLS records once record payload
858 protection is active. (CVE-2010-####)
859 [Bodo Moeller, Adam Langley]
861 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
862 could be crashed if the relevant tables were not present (e.g. chrooted).
863 [Tomas Hoger <thoger@redhat.com>]
865 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
867 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
868 [Martin Olsson, Neel Mehta]
870 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
871 accommodate for stack sorting, always a write lock!).
874 *) On some versions of WIN32 Heap32Next is very slow. This can cause
875 excessive delays in the RAND_poll(): over a minute. As a workaround
876 include a time check in the inner Heap32Next loop too.
879 *) The code that handled flushing of data in SSL/TLS originally used the
880 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
881 the problem outlined in PR#1949. The fix suggested there however can
882 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
883 of Apache). So instead simplify the code to flush unconditionally.
884 This should be fine since flushing with no data to flush is a no op.
887 *) Handle TLS versions 2.0 and later properly and correctly use the
888 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
889 off ancient servers have a habit of sticking around for a while...
892 *) Modify compression code so it frees up structures without using the
893 ex_data callbacks. This works around a problem where some applications
894 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
895 restarting) then use compression (e.g. SSL with compression) later.
896 This results in significant per-connection memory leaks and
897 has caused some security issues including CVE-2008-1678 and
901 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
902 change when encrypting or decrypting.
905 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
906 connect and renegotiate with servers which do not support RI.
907 Until RI is more widely deployed this option is enabled by default.
910 *) Add "missing" ssl ctrls to clear options and mode.
913 *) If client attempts to renegotiate and doesn't support RI respond with
914 a no_renegotiation alert as required by RFC5746. Some renegotiating
915 TLS clients will continue a connection gracefully when they receive
916 the alert. Unfortunately OpenSSL mishandled this alert and would hang
917 waiting for a server hello which it will never receive. Now we treat a
918 received no_renegotiation alert as a fatal error. This is because
919 applications requesting a renegotiation might well expect it to succeed
920 and would have no code in place to handle the server denying it so the
921 only safe thing to do is to terminate the connection.
924 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
925 peer supports secure renegotiation and 0 otherwise. Print out peer
926 renegotiation support in s_client/s_server.
929 *) Replace the highly broken and deprecated SPKAC certification method with
930 the updated NID creation version. This should correctly handle UTF8.
933 *) Implement RFC5746. Re-enable renegotiation but require the extension
934 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
935 turns out to be a bad idea. It has been replaced by
936 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
937 SSL_CTX_set_options(). This is really not recommended unless you
938 know what you are doing.
939 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
941 *) Fixes to stateless session resumption handling. Use initial_ctx when
942 issuing and attempting to decrypt tickets in case it has changed during
943 servername handling. Use a non-zero length session ID when attempting
944 stateless session resumption: this makes it possible to determine if
945 a resumption has occurred immediately after receiving server hello
946 (several places in OpenSSL subtly assume this) instead of later in
950 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
951 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
952 fixes for a few places where the return code is not checked
954 [Julia Lawall <julia@diku.dk>]
956 *) Add --strict-warnings option to Configure script to include devteam
957 warnings in other configurations.
960 *) Add support for --libdir option and LIBDIR variable in makefiles. This
961 makes it possible to install openssl libraries in locations which
962 have names other than "lib", for example "/usr/lib64" which some
964 [Steve Henson, based on patch from Jeremy Utley]
966 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
967 X690 8.9.12 and can produce some misleading textual output of OIDs.
968 [Steve Henson, reported by Dan Kaminsky]
970 *) Delete MD2 from algorithm tables. This follows the recommendation in
971 several standards that it is not used in new applications due to
972 several cryptographic weaknesses. For binary compatibility reasons
973 the MD2 API is still compiled in by default.
976 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
980 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
981 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
983 [Guenter <lists@gknw.net>]
985 *) Fix the server certificate chain building code to use X509_verify_cert(),
986 it used to have an ad-hoc builder which was unable to cope with anything
987 other than a simple chain.
988 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
990 *) Don't check self signed certificate signatures in X509_verify_cert()
991 by default (a flag can override this): it just wastes time without
992 adding any security. As a useful side effect self signed root CAs
993 with non-FIPS digests are now usable in FIPS mode.
996 *) In dtls1_process_out_of_seq_message() the check if the current message
997 is already buffered was missing. For every new message was memory
998 allocated, allowing an attacker to perform an denial of service attack
999 with sending out of seq handshake messages until there is no memory
1000 left. Additionally every future messege was buffered, even if the
1001 sequence number made no sense and would be part of another handshake.
1002 So only messages with sequence numbers less than 10 in advance will be
1003 buffered. (CVE-2009-1378)
1004 [Robin Seggelmann, discovered by Daniel Mentz]
1006 *) Records are buffered if they arrive with a future epoch to be
1007 processed after finishing the corresponding handshake. There is
1008 currently no limitation to this buffer allowing an attacker to perform
1009 a DOS attack with sending records with future epochs until there is no
1010 memory left. This patch adds the pqueue_size() function to detemine
1011 the size of a buffer and limits the record buffer to 100 entries.
1013 [Robin Seggelmann, discovered by Daniel Mentz]
1015 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1016 parent structure is freed. (CVE-2009-1379)
1019 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1020 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1023 [Ilya O. <vrghost@gmail.com>]
1025 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1027 *) Disable renegotiation completely - this fixes a severe security
1028 problem (CVE-2009-3555) at the cost of breaking all
1029 renegotiation. Renegotiation can be re-enabled by setting
1030 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1031 run-time. This is really not recommended unless you know what
1035 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1037 *) Don't set val to NULL when freeing up structures, it is freed up by
1038 underlying code. If sizeof(void *) > sizeof(long) this can result in
1039 zeroing past the valid field. (CVE-2009-0789)
1040 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1042 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1043 checked correctly. This would allow some invalid signed attributes to
1044 appear to verify correctly. (CVE-2009-0591)
1045 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1047 *) Reject UniversalString and BMPString types with invalid lengths. This
1048 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1049 a legal length. (CVE-2009-0590)
1052 *) Set S/MIME signing as the default purpose rather than setting it
1053 unconditionally. This allows applications to override it at the store
1057 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1058 to handle some structures.
1061 *) Improve efficiency of mem_gets: don't search whole buffer each time
1063 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1065 *) New -hex option for openssl rand.
1068 *) Print out UTF8String and NumericString when parsing ASN1.
1071 *) Support NumericString type for name components.
1074 *) Allow CC in the environment to override the automatically chosen
1075 compiler. Note that nothing is done to ensure flags work with the
1079 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1081 *) Properly check EVP_VerifyFinal() and similar return values
1083 [Ben Laurie, Bodo Moeller, Google Security Team]
1085 *) Enable TLS extensions by default.
1088 *) Allow the CHIL engine to be loaded, whether the application is
1089 multithreaded or not. (This does not release the developer from the
1090 obligation to set up the dynamic locking callbacks.)
1091 [Sander Temme <sander@temme.net>]
1093 *) Use correct exit code if there is an error in dgst command.
1094 [Steve Henson; problem pointed out by Roland Dirlewanger]
1096 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1097 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1100 *) Add experimental JPAKE support, including demo authentication in
1101 s_client and s_server.
1104 *) Set the comparison function in v3_addr_canonize().
1105 [Rob Austein <sra@hactrn.net>]
1107 *) Add support for XMPP STARTTLS in s_client.
1108 [Philip Paeps <philip@freebsd.org>]
1110 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1111 to ensure that even with this option, only ciphersuites in the
1112 server's preference list will be accepted. (Note that the option
1113 applies only when resuming a session, so the earlier behavior was
1114 just about the algorithm choice for symmetric cryptography.)
1117 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1119 *) Fix NULL pointer dereference if a DTLS server received
1120 ChangeCipherSpec as first record (CVE-2009-1386).
1123 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1124 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1127 *) The fix in 0.9.8c that supposedly got rid of unsafe
1128 double-checked locking was incomplete for RSA blinding,
1129 addressing just one layer of what turns out to have been
1130 doubly unsafe triple-checked locking.
1132 So now fix this for real by retiring the MONT_HELPER macro
1133 in crypto/rsa/rsa_eay.c.
1135 [Bodo Moeller; problem pointed out by Marius Schilder]
1137 *) Various precautionary measures:
1139 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1141 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1142 (NB: This would require knowledge of the secret session ticket key
1143 to exploit, in which case you'd be SOL either way.)
1145 - Change bn_nist.c so that it will properly handle input BIGNUMs
1146 outside the expected range.
1148 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1151 [Neel Mehta, Bodo Moeller]
1153 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1154 the load fails. Useful for distros.
1155 [Ben Laurie and the FreeBSD team]
1157 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1160 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1163 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1165 This work was sponsored by Logica.
1168 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1169 keystores. Support for SSL/TLS client authentication too.
1170 Not compiled unless enable-capieng specified to Configure.
1172 This work was sponsored by Logica.
1175 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1176 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1177 attribute creation routines such as certifcate requests and PKCS#12
1181 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1183 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1184 handshake which could lead to a cilent crash as found using the
1185 Codenomicon TLS test suite (CVE-2008-1672)
1186 [Steve Henson, Mark Cox]
1188 *) Fix double free in TLS server name extensions which could lead to
1189 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1192 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1194 Clear the error queue to ensure that error entries left from
1195 older function calls do not interfere with the correct operation.
1196 [Lutz Jaenicke, Erik de Castro Lopo]
1198 *) Remove root CA certificates of commercial CAs:
1200 The OpenSSL project does not recommend any specific CA and does not
1201 have any policy with respect to including or excluding any CA.
1202 Therefore it does not make any sense to ship an arbitrary selection
1203 of root CA certificates with the OpenSSL software.
1206 *) RSA OAEP patches to fix two separate invalid memory reads.
1207 The first one involves inputs when 'lzero' is greater than
1208 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1209 before the beginning of from). The second one involves inputs where
1210 the 'db' section contains nothing but zeroes (there is a one-byte
1211 invalid read after the end of 'db').
1212 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1214 *) Partial backport from 0.9.9-dev:
1216 Introduce bn_mul_mont (dedicated Montgomery multiplication
1217 procedure) as a candidate for BIGNUM assembler implementation.
1218 While 0.9.9-dev uses assembler for various architectures, only
1219 x86_64 is available by default here in the 0.9.8 branch, and
1220 32-bit x86 is available through a compile-time setting.
1222 To try the 32-bit x86 assembler implementation, use Configure
1223 option "enable-montasm" (which exists only for this backport).
1225 As "enable-montasm" for 32-bit x86 disclaims code stability
1226 anyway, in this constellation we activate additional code
1227 backported from 0.9.9-dev for further performance improvements,
1228 namely BN_from_montgomery_word. (To enable this otherwise,
1229 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1231 [Andy Polyakov (backport partially by Bodo Moeller)]
1233 *) Add TLS session ticket callback. This allows an application to set
1234 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1235 values. This is useful for key rollover for example where several key
1236 sets may exist with different names.
1239 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1240 This was broken until now in 0.9.8 releases, such that the only way
1241 a registered ENGINE could be used (assuming it initialises
1242 successfully on the host) was to explicitly set it as the default
1243 for the relevant algorithms. This is in contradiction with 0.9.7
1244 behaviour and the documentation. With this fix, when an ENGINE is
1245 registered into a given algorithm's table of implementations, the
1246 'uptodate' flag is reset so that auto-discovery will be used next
1247 time a new context for that algorithm attempts to select an
1249 [Ian Lister (tweaked by Geoff Thorpe)]
1251 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1252 implemention in the following ways:
1254 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1257 Lack of BER streaming support means one pass streaming processing is
1258 only supported if data is detached: setting the streaming flag is
1259 ignored for embedded content.
1261 CMS support is disabled by default and must be explicitly enabled
1262 with the enable-cms configuration option.
1265 *) Update the GMP engine glue to do direct copies between BIGNUM and
1266 mpz_t when openssl and GMP use the same limb size. Otherwise the
1267 existing "conversion via a text string export" trick is still used.
1268 [Paul Sheer <paulsheer@gmail.com>]
1270 *) Zlib compression BIO. This is a filter BIO which compressed and
1271 uncompresses any data passed through it.
1274 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1275 RFC3394 compatible AES key wrapping.
1278 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1279 sets string data without copying. X509_ALGOR_set0() and
1280 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1281 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1282 from an X509_ATTRIBUTE structure optionally checking it occurs only
1283 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1287 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1288 to get the expected BN_FLG_CONSTTIME behavior.
1289 [Bodo Moeller (Google)]
1293 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1294 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1295 - added some more tests to do_tests.pl
1296 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1297 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1298 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1299 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1300 - various changes to netware.pl to enable gcc-cross builds on Win32
1302 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1303 - various changes to fix missing prototype warnings
1304 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1305 - added AES, WHIRLPOOL and CPUID assembler code to build files
1306 - added missing AES assembler make rules to mk1mf.pl
1307 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1308 [Guenter Knauf <eflash@gmx.net>]
1310 *) Implement certificate status request TLS extension defined in RFC3546.
1311 A client can set the appropriate parameters and receive the encoded
1312 OCSP response via a callback. A server can query the supplied parameters
1313 and set the encoded OCSP response in the callback. Add simplified examples
1314 to s_client and s_server.
1317 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1319 *) Fix various bugs:
1320 + Binary incompatibility of ssl_ctx_st structure
1321 + DTLS interoperation with non-compliant servers
1322 + Don't call get_session_cb() without proposed session
1323 + Fix ia64 assembler code
1324 [Andy Polyakov, Steve Henson]
1326 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1328 *) DTLS Handshake overhaul. There were longstanding issues with
1329 OpenSSL DTLS implementation, which were making it impossible for
1330 RFC 4347 compliant client to communicate with OpenSSL server.
1331 Unfortunately just fixing these incompatibilities would "cut off"
1332 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1333 server keeps tolerating non RFC compliant syntax. The opposite is
1334 not true, 0.9.8f client can not communicate with earlier server.
1335 This update even addresses CVE-2007-4995.
1338 *) Changes to avoid need for function casts in OpenSSL: some compilers
1339 (gcc 4.2 and later) reject their use.
1340 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1343 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1344 RFC4507bis. The encrypted ticket format is an encrypted encoded
1345 SSL_SESSION structure, that way new session features are automatically
1348 If a client application caches session in an SSL_SESSION structure
1349 support is transparent because tickets are now stored in the encoded
1352 The SSL_CTX structure automatically generates keys for ticket
1353 protection in servers so again support should be possible
1354 with no application modification.
1356 If a client or server wishes to disable RFC4507 support then the option
1357 SSL_OP_NO_TICKET can be set.
1359 Add a TLS extension debugging callback to allow the contents of any client
1360 or server extensions to be examined.
1362 This work was sponsored by Google.
1365 *) Add initial support for TLS extensions, specifically for the server_name
1366 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1367 have new members for a host name. The SSL data structure has an
1368 additional member SSL_CTX *initial_ctx so that new sessions can be
1369 stored in that context to allow for session resumption, even after the
1370 SSL has been switched to a new SSL_CTX in reaction to a client's
1371 server_name extension.
1373 New functions (subject to change):
1375 SSL_get_servername()
1376 SSL_get_servername_type()
1379 New CTRL codes and macros (subject to change):
1381 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1382 - SSL_CTX_set_tlsext_servername_callback()
1383 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1384 - SSL_CTX_set_tlsext_servername_arg()
1385 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1387 openssl s_client has a new '-servername ...' option.
1389 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1390 '-key2 ...', '-servername_fatal' (subject to change). This allows
1391 testing the HostName extension for a specific single host name ('-cert'
1392 and '-key' remain fallbacks for handshakes without HostName
1393 negotiation). If the unrecogninzed_name alert has to be sent, this by
1394 default is a warning; it becomes fatal with the '-servername_fatal'
1397 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1399 *) Add AES and SSE2 assembly language support to VC++ build.
1402 *) Mitigate attack on final subtraction in Montgomery reduction.
1405 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1406 (which previously caused an internal error).
1409 *) Squeeze another 10% out of IGE mode when in != out.
1412 *) AES IGE mode speedup.
1413 [Dean Gaudet (Google)]
1415 *) Add the Korean symmetric 128-bit cipher SEED (see
1416 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1417 add SEED ciphersuites from RFC 4162:
1419 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1420 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1421 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1422 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1424 To minimize changes between patchlevels in the OpenSSL 0.9.8
1425 series, SEED remains excluded from compilation unless OpenSSL
1426 is configured with 'enable-seed'.
1427 [KISA, Bodo Moeller]
1429 *) Mitigate branch prediction attacks, which can be practical if a
1430 single processor is shared, allowing a spy process to extract
1431 information. For detailed background information, see
1432 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1433 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1434 and Necessary Software Countermeasures"). The core of the change
1435 are new versions BN_div_no_branch() and
1436 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1437 respectively, which are slower, but avoid the security-relevant
1438 conditional branches. These are automatically called by BN_div()
1439 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1440 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1441 remove a conditional branch.
1443 BN_FLG_CONSTTIME is the new name for the previous
1444 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1445 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1446 in the exponent causes BN_mod_exp_mont() to use the alternative
1447 implementation in BN_mod_exp_mont_consttime().) The old name
1448 remains as a deprecated alias.
1450 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1451 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1452 constant-time implementations for more than just exponentiation.
1453 Here too the old name is kept as a deprecated alias.
1455 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1456 the BN_BLINDING structure gets an independent copy of the
1457 modulus. This means that the previous "BIGNUM *m" argument to
1458 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1459 essentially becomes "const BIGNUM *m", although we can't actually
1460 change this in the header file before 0.9.9. It allows
1461 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1462 enable BN_FLG_CONSTTIME.
1464 [Matthew D Wood (Intel Corp)]
1466 *) In the SSL/TLS server implementation, be strict about session ID
1467 context matching (which matters if an application uses a single
1468 external cache for different purposes). Previously,
1469 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1470 set. This did ensure strict client verification, but meant that,
1471 with applications using a single external cache for quite
1472 different requirements, clients could circumvent ciphersuite
1473 restrictions for a given session ID context by starting a session
1474 in a different context.
1477 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1478 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1479 authentication-only ciphersuites.
1482 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1483 not complete and could lead to a possible single byte overflow
1484 (CVE-2007-5135) [Ben Laurie]
1486 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1488 *) Since AES128 and AES256 (and similarly Camellia128 and
1489 Camellia256) share a single mask bit in the logic of
1490 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1491 kludge to work properly if AES128 is available and AES256 isn't
1492 (or if Camellia128 is available and Camellia256 isn't).
1495 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1496 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1497 When a point or a seed is encoded in a BIT STRING, we need to
1498 prevent the removal of trailing zero bits to get the proper DER
1499 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1500 of a NamedBitList, for which trailing 0 bits need to be removed.)
1503 *) Have SSL/TLS server implementation tolerate "mismatched" record
1504 protocol version while receiving ClientHello even if the
1505 ClientHello is fragmented. (The server can't insist on the
1506 particular protocol version it has chosen before the ServerHello
1507 message has informed the client about his choice.)
1510 *) Add RFC 3779 support.
1511 [Rob Austein for ARIN, Ben Laurie]
1513 *) Load error codes if they are not already present instead of using a
1514 static variable. This allows them to be cleanly unloaded and reloaded.
1515 Improve header file function name parsing.
1518 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1519 or CAPABILITY handshake as required by RFCs.
1522 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1524 *) Introduce limits to prevent malicious keys being able to
1525 cause a denial of service. (CVE-2006-2940)
1526 [Steve Henson, Bodo Moeller]
1528 *) Fix ASN.1 parsing of certain invalid structures that can result
1529 in a denial of service. (CVE-2006-2937) [Steve Henson]
1531 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1532 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1534 *) Fix SSL client code which could crash if connecting to a
1535 malicious SSLv2 server. (CVE-2006-4343)
1536 [Tavis Ormandy and Will Drewry, Google Security Team]
1538 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1539 match only those. Before that, "AES256-SHA" would be interpreted
1540 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1541 the same strength classification in 0.9.7h) as we currently only
1542 have a single AES bit in the ciphersuite description bitmap.
1543 That change, however, also applied to ciphersuite strings such as
1544 "RC4-MD5" that intentionally matched multiple ciphersuites --
1545 namely, SSL 2.0 ciphersuites in addition to the more common ones
1546 from SSL 3.0/TLS 1.0.
1548 So we change the selection algorithm again: Naming an explicit
1549 ciphersuite selects this one ciphersuite, and any other similar
1550 ciphersuite (same bitmap) from *other* protocol versions.
1551 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1552 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1554 Since SSL 2.0 does not have any ciphersuites for which the
1555 128/256 bit distinction would be relevant, this works for now.
1556 The proper fix will be to use different bits for AES128 and
1557 AES256, which would have avoided the problems from the beginning;
1558 however, bits are scarce, so we can only do this in a new release
1559 (not just a patchlevel) when we can change the SSL_CIPHER
1560 definition to split the single 'unsigned long mask' bitmap into
1561 multiple values to extend the available space.
1565 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1567 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1568 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1570 *) Add AES IGE and biIGE modes.
1573 *) Change the Unix randomness entropy gathering to use poll() when
1574 possible instead of select(), since the latter has some
1575 undesirable limitations.
1576 [Darryl Miles via Richard Levitte and Bodo Moeller]
1578 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1579 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1580 cannot be implicitly activated as part of, e.g., the "AES" alias.
1581 However, please upgrade to OpenSSL 0.9.9[-dev] for
1582 non-experimental use of the ECC ciphersuites to get TLS extension
1583 support, which is required for curve and point format negotiation
1584 to avoid potential handshake problems.
1587 *) Disable rogue ciphersuites:
1589 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1590 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1591 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1593 The latter two were purportedly from
1594 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1597 Also deactivate the remaining ciphersuites from
1598 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1599 unofficial, and the ID has long expired.
1602 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1603 dual-core machines) and other potential thread-safety issues.
1606 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1607 versions), which is now available for royalty-free use
1608 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1609 Also, add Camellia TLS ciphersuites from RFC 4132.
1611 To minimize changes between patchlevels in the OpenSSL 0.9.8
1612 series, Camellia remains excluded from compilation unless OpenSSL
1613 is configured with 'enable-camellia'.
1616 *) Disable the padding bug check when compression is in use. The padding
1617 bug check assumes the first packet is of even length, this is not
1618 necessarily true if compresssion is enabled and can result in false
1619 positives causing handshake failure. The actual bug test is ancient
1620 code so it is hoped that implementations will either have fixed it by
1621 now or any which still have the bug do not support compression.
1624 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1626 *) When applying a cipher rule check to see if string match is an explicit
1627 cipher suite and only match that one cipher suite if it is.
1630 *) Link in manifests for VC++ if needed.
1631 [Austin Ziegler <halostatue@gmail.com>]
1633 *) Update support for ECC-based TLS ciphersuites according to
1634 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1635 TLS extensions, which are supported starting with the 0.9.9
1636 branch, not in the OpenSSL 0.9.8 branch).
1639 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1640 opaque EVP_CIPHER_CTX handling.
1643 *) Fixes and enhancements to zlib compression code. We now only use
1644 "zlib1.dll" and use the default __cdecl calling convention on Win32
1645 to conform with the standards mentioned here:
1646 http://www.zlib.net/DLL_FAQ.txt
1647 Static zlib linking now works on Windows and the new --with-zlib-include
1648 --with-zlib-lib options to Configure can be used to supply the location
1649 of the headers and library. Gracefully handle case where zlib library
1653 *) Several fixes and enhancements to the OID generation code. The old code
1654 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1655 handle numbers larger than ULONG_MAX, truncated printing and had a
1656 non standard OBJ_obj2txt() behaviour.
1659 *) Add support for building of engines under engine/ as shared libraries
1660 under VC++ build system.
1663 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1664 Hopefully, we will not see any false combination of paths any more.
1667 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1669 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1670 (part of SSL_OP_ALL). This option used to disable the
1671 countermeasure against man-in-the-middle protocol-version
1672 rollback in the SSL 2.0 server implementation, which is a bad
1673 idea. (CVE-2005-2969)
1675 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1676 for Information Security, National Institute of Advanced Industrial
1677 Science and Technology [AIST], Japan)]
1679 *) Add two function to clear and return the verify parameter flags.
1682 *) Keep cipherlists sorted in the source instead of sorting them at
1683 runtime, thus removing the need for a lock.
1686 *) Avoid some small subgroup attacks in Diffie-Hellman.
1687 [Nick Mathewson and Ben Laurie]
1689 *) Add functions for well-known primes.
1692 *) Extended Windows CE support.
1693 [Satoshi Nakamura and Andy Polyakov]
1695 *) Initialize SSL_METHOD structures at compile time instead of during
1696 runtime, thus removing the need for a lock.
1699 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1700 attempting to decrypt each encrypted key in turn. Add support to
1704 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1706 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1709 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1712 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1713 key into the same file any more.
1716 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1719 *) Add -utf8 command line and config file option to 'ca'.
1720 [Stefan <stf@udoma.org]
1722 *) Removed the macro des_crypt(), as it seems to conflict with some
1723 libraries. Use DES_crypt().
1726 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1727 involves renaming the source and generated shared-libs for
1728 both. The engines will accept the corrected or legacy ids
1729 ('ncipher' and '4758_cca' respectively) when binding. NB,
1730 this only applies when building 'shared'.
1731 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1733 *) Add attribute functions to EVP_PKEY structure. Modify
1734 PKCS12_create() to recognize a CSP name attribute and
1735 use it. Make -CSP option work again in pkcs12 utility.
1738 *) Add new functionality to the bn blinding code:
1739 - automatic re-creation of the BN_BLINDING parameters after
1740 a fixed number of uses (currently 32)
1741 - add new function for parameter creation
1742 - introduce flags to control the update behaviour of the
1743 BN_BLINDING parameters
1744 - hide BN_BLINDING structure
1745 Add a second BN_BLINDING slot to the RSA structure to improve
1746 performance when a single RSA object is shared among several
1750 *) Add support for DTLS.
1751 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1753 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1754 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1757 *) Remove buggy and incompletet DH cert support from
1758 ssl/ssl_rsa.c and ssl/s3_both.c
1761 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1762 the apps/openssl applications.
1765 *) Compile clean with "-Wall -Wmissing-prototypes
1766 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1767 DEBUG_SAFESTACK must also be set.
1770 *) Change ./Configure so that certain algorithms can be disabled by default.
1771 The new counterpiece to "no-xxx" is "enable-xxx".
1773 The patented RC5 and MDC2 algorithms will now be disabled unless
1774 "enable-rc5" and "enable-mdc2", respectively, are specified.
1776 (IDEA remains enabled despite being patented. This is because IDEA
1777 is frequently required for interoperability, and there is no license
1778 fee for non-commercial use. As before, "no-idea" can be used to
1779 avoid this algorithm.)
1783 *) Add processing of proxy certificates (see RFC 3820). This work was
1784 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1785 EGEE (Enabling Grids for E-science in Europe).
1788 *) RC4 performance overhaul on modern architectures/implementations, such
1789 as Intel P4, IA-64 and AMD64.
1792 *) New utility extract-section.pl. This can be used specify an alternative
1793 section number in a pod file instead of having to treat each file as
1794 a separate case in Makefile. This can be done by adding two lines to the
1797 =for comment openssl_section:XXX
1799 The blank line is mandatory.
1803 *) New arguments -certform, -keyform and -pass for s_client and s_server
1804 to allow alternative format key and certificate files and passphrase
1808 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1809 update associated structures and add various utility functions.
1811 Add new policy related verify parameters, include policy checking in
1812 standard verify code. Enhance 'smime' application with extra parameters
1813 to support policy checking and print out.
1816 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1817 Nehemiah processors. These extensions support AES encryption in hardware
1818 as well as RNG (though RNG support is currently disabled).
1819 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1821 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1824 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1825 [Andy Polyakov and a number of other people]
1827 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1828 implementation contributed by IBM.
1829 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1831 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1832 exponent rather than 'unsigned long'. There is a corresponding change to
1833 the new 'rsa_keygen' element of the RSA_METHOD structure.
1834 [Jelte Jansen, Geoff Thorpe]
1836 *) Functionality for creating the initial serial number file is now
1837 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1839 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1840 number file to 1, which is bound to cause problems. To avoid
1841 the problems while respecting compatibility between different 0.9.7
1842 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1843 CA.pl for serial number initialization. With the new release 0.9.8,
1844 we can fix the problem directly in the 'ca' utility.)
1847 *) Reduced header interdepencies by declaring more opaque objects in
1848 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1849 give fewer recursive includes, which could break lazy source code - so
1850 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1851 developers should define this symbol when building and using openssl to
1852 ensure they track the recommended behaviour, interfaces, [etc], but
1853 backwards-compatible behaviour prevails when this isn't defined.
1856 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1859 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1860 This will generate a random key of the appropriate length based on the
1861 cipher context. The EVP_CIPHER can provide its own random key generation
1862 routine to support keys of a specific form. This is used in the des and
1863 3des routines to generate a key of the correct parity. Update S/MIME
1864 code to use new functions and hence generate correct parity DES keys.
1865 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1866 valid (weak or incorrect parity).
1869 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1870 as looking them up. This is useful when the verified structure may contain
1871 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1872 present unless the new PKCS7_NO_CRL flag is asserted.
1875 *) Extend ASN1 oid configuration module. It now additionally accepts the
1878 shortName = some long name, 1.2.3.4
1881 *) Reimplemented the BN_CTX implementation. There is now no more static
1882 limitation on the number of variables it can handle nor the depth of the
1883 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1884 information can now expand as required, and rather than having a single
1885 static array of bignums, BN_CTX now uses a linked-list of such arrays
1886 allowing it to expand on demand whilst maintaining the usefulness of
1887 BN_CTX's "bundling".
1890 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1891 to allow all RSA operations to function using a single BN_CTX.
1894 *) Preliminary support for certificate policy evaluation and checking. This
1895 is initially intended to pass the tests outlined in "Conformance Testing
1896 of Relying Party Client Certificate Path Processing Logic" v1.07.
1899 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1900 remained unused and not that useful. A variety of other little bignum
1901 tweaks and fixes have also been made continuing on from the audit (see
1905 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1906 associated ASN1, EVP and SSL functions and old ASN1 macros.
1909 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1910 and this should never fail. So the return value from the use of
1911 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1912 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1915 *) BN_CTX_get() should return zero-valued bignums, providing the same
1916 initialised value as BN_new().
1917 [Geoff Thorpe, suggested by Ulf Möller]
1919 *) Support for inhibitAnyPolicy certificate extension.
1922 *) An audit of the BIGNUM code is underway, for which debugging code is
1923 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1924 is considered valid when processing BIGNUMs, and causes execution to
1925 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1926 further steps are taken to deliberately pollute unused data in BIGNUM
1927 structures to try and expose faulty code further on. For now, openssl will
1928 (in its default mode of operation) continue to tolerate the inconsistent
1929 forms that it has tolerated in the past, but authors and packagers should
1930 consider trying openssl and their own applications when compiled with
1931 these debugging symbols defined. It will help highlight potential bugs in
1932 their own code, and will improve the test coverage for OpenSSL itself. At
1933 some point, these tighter rules will become openssl's default to improve
1934 maintainability, though the assert()s and other overheads will remain only
1935 in debugging configurations. See bn.h for more details.
1936 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1938 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1939 that can only be obtained through BN_CTX_new() (which implicitly
1940 initialises it). The presence of this function only made it possible
1941 to overwrite an existing structure (and cause memory leaks).
1944 *) Because of the callback-based approach for implementing LHASH as a
1945 template type, lh_insert() adds opaque objects to hash-tables and
1946 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1947 to clean up those corresponding objects before destroying the hash table
1948 (and losing the object pointers). So some over-zealous constifications in
1949 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1950 objects as "const" and the lh_doall[_arg] callback wrappers are not
1951 prototyped to have "const" restrictions on the object pointers they are
1952 given (and so aren't required to cast them away any more).
1955 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1956 (speed) prefers to use its own implementation. The two implementations
1957 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1958 its object type properly exposed (MS_TM) instead of casting to/from "char
1959 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1960 aren't necessarily the greatest nomenclatures - but this is what was used
1961 internally to the implementation so I've used that for now.
1964 *) Ensure that deprecated functions do not get compiled when
1965 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1966 the self-tests were still using deprecated key-generation functions so
1967 these have been updated also.
1970 *) Reorganise PKCS#7 code to separate the digest location functionality
1971 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1972 New function PKCS7_set_digest() to set the digest type for PKCS#7
1973 digestedData type. Add additional code to correctly generate the
1974 digestedData type and add support for this type in PKCS7 initialization
1978 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1979 structure of type "other".
1982 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1983 sure the loop does correctly stop and breaking ("division by zero")
1984 modulus operations are not performed. The (pre-generated) prime
1985 table crypto/bn/bn_prime.h was already correct, but it could not be
1986 re-generated on some platforms because of the "division by zero"
1987 situation in the script.
1988 [Ralf S. Engelschall]
1990 *) Update support for ECC-based TLS ciphersuites according to
1991 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1992 SHA-1 now is only used for "small" curves (where the
1993 representation of a field element takes up to 24 bytes); for
1994 larger curves, the field element resulting from ECDH is directly
1995 used as premaster secret.
1996 [Douglas Stebila (Sun Microsystems Laboratories)]
1998 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1999 curve secp160r1 to the tests.
2000 [Douglas Stebila (Sun Microsystems Laboratories)]
2002 *) Add the possibility to load symbols globally with DSO.
2003 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2005 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2006 control of the error stack.
2009 *) Add support for STORE in ENGINE.
2012 *) Add the STORE type. The intention is to provide a common interface
2013 to certificate and key stores, be they simple file-based stores, or
2014 HSM-type store, or LDAP stores, or...
2015 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2018 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2019 pass a list of arguments to any function as well as provide a way
2020 for a function to pass data back to the caller.
2023 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2024 works like BUF_strdup() but can be used to duplicate a portion of
2025 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2029 *) Add the function sk_find_ex() which works like sk_find(), but will
2030 return an index to an element even if an exact match couldn't be
2031 found. The index is guaranteed to point at the element where the
2032 searched-for key would be inserted to preserve sorting order.
2035 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2036 takes an extra flags argument for optional functionality. Currently,
2037 the following flags are defined:
2039 OBJ_BSEARCH_VALUE_ON_NOMATCH
2040 This one gets OBJ_bsearch_ex() to return a pointer to the first
2041 element where the comparing function returns a negative or zero
2044 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2045 This one gets OBJ_bsearch_ex() to return a pointer to the first
2046 element where the comparing function returns zero. This is useful
2047 if there are more than one element where the comparing function
2051 *) Make it possible to create self-signed certificates with 'openssl ca'
2052 in such a way that the self-signed certificate becomes part of the
2053 CA database and uses the same mechanisms for serial number generation
2054 as all other certificate signing. The new flag '-selfsign' enables
2055 this functionality. Adapt CA.sh and CA.pl.in.
2058 *) Add functionality to check the public key of a certificate request
2059 against a given private. This is useful to check that a certificate
2060 request can be signed by that key (self-signing).
2063 *) Make it possible to have multiple active certificates with the same
2064 subject in the CA index file. This is done only if the keyword
2065 'unique_subject' is set to 'no' in the main CA section (default
2066 if 'CA_default') of the configuration file. The value is saved
2067 with the database itself in a separate index attribute file,
2068 named like the index file with '.attr' appended to the name.
2071 *) Generate muti valued AVAs using '+' notation in config files for
2075 *) Support for nameConstraints certificate extension.
2078 *) Support for policyConstraints certificate extension.
2081 *) Support for policyMappings certificate extension.
2084 *) Make sure the default DSA_METHOD implementation only uses its
2085 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2086 and change its own handlers to be NULL so as to remove unnecessary
2087 indirection. This lets alternative implementations fallback to the
2088 default implementation more easily.
2091 *) Support for directoryName in GeneralName related extensions
2095 *) Make it possible to link applications using Makefile.shared.
2096 Make that possible even when linking against static libraries!
2099 *) Support for single pass processing for S/MIME signing. This now
2100 means that S/MIME signing can be done from a pipe, in addition
2101 cleartext signing (multipart/signed type) is effectively streaming
2102 and the signed data does not need to be all held in memory.
2104 This is done with a new flag PKCS7_STREAM. When this flag is set
2105 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2106 is done after the data is output (and digests calculated) in
2107 SMIME_write_PKCS7().
2110 *) Add full support for -rpath/-R, both in shared libraries and
2111 applications, at least on the platforms where it's known how
2115 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2116 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2117 will now compute a table of multiples of the generator that
2118 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2119 faster (notably in the case of a single point multiplication,
2120 scalar * generator).
2121 [Nils Larsch, Bodo Moeller]
2123 *) IPv6 support for certificate extensions. The various extensions
2124 which use the IP:a.b.c.d can now take IPv6 addresses using the
2125 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2129 *) Added an ENGINE that implements RSA by performing private key
2130 exponentiations with the GMP library. The conversions to and from
2131 GMP's mpz_t format aren't optimised nor are any montgomery forms
2132 cached, and on x86 it appears OpenSSL's own performance has caught up.
2133 However there are likely to be other architectures where GMP could
2134 provide a boost. This ENGINE is not built in by default, but it can be
2135 specified at Configure time and should be accompanied by the necessary
2136 linker additions, eg;
2137 ./config -DOPENSSL_USE_GMP -lgmp
2140 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2141 testing availability of engines with "-t" - the old behaviour is
2142 produced by increasing the feature's verbosity with "-tt".
2145 *) ECDSA routines: under certain error conditions uninitialized BN objects
2146 could be freed. Solution: make sure initialization is performed early
2147 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2151 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2152 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2153 software implementations. For DSA and DH, parameter generation can
2154 also be overriden by providing the appropriate method callbacks.
2157 *) Change the "progress" mechanism used in key-generation and
2158 primality testing to functions that take a new BN_GENCB pointer in
2159 place of callback/argument pairs. The new API functions have "_ex"
2160 postfixes and the older functions are reimplemented as wrappers for
2161 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2162 declarations of the old functions to help (graceful) attempts to
2163 migrate to the new functions. Also, the new key-generation API
2164 functions operate on a caller-supplied key-structure and return
2165 success/failure rather than returning a key or NULL - this is to
2166 help make "keygen" another member function of RSA_METHOD etc.
2168 Example for using the new callback interface:
2170 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2174 BN_GENCB_set(&my_cb, my_callback, my_arg);
2176 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2177 /* For the meaning of a, b in calls to my_callback(), see the
2178 * documentation of the function that calls the callback.
2179 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2180 * my_callback should return 1 if it wants BN_is_prime_ex()
2181 * to continue, or 0 to stop.
2186 *) Change the ZLIB compression method to be stateful, and make it
2187 available to TLS with the number defined in
2188 draft-ietf-tls-compression-04.txt.
2191 *) Add the ASN.1 structures and functions for CertificatePair, which
2192 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2194 CertificatePair ::= SEQUENCE {
2195 forward [0] Certificate OPTIONAL,
2196 reverse [1] Certificate OPTIONAL,
2197 -- at least one of the pair shall be present -- }
2199 Also implement the PEM functions to read and write certificate
2200 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2202 This needed to be defined, mostly for the sake of the LDAP
2203 attribute crossCertificatePair, but may prove useful elsewhere as
2207 *) Make it possible to inhibit symlinking of shared libraries in
2208 Makefile.shared, for Cygwin's sake.
2211 *) Extend the BIGNUM API by creating a function
2212 void BN_set_negative(BIGNUM *a, int neg);
2213 and a macro that behave like
2214 int BN_is_negative(const BIGNUM *a);
2216 to avoid the need to access 'a->neg' directly in applications.
2219 *) Implement fast modular reduction for pseudo-Mersenne primes
2220 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2221 EC_GROUP_new_curve_GFp() will now automatically use this
2223 [Nils Larsch <nla@trustcenter.de>]
2225 *) Add new lock type (CRYPTO_LOCK_BN).
2228 *) Change the ENGINE framework to automatically load engines
2229 dynamically from specific directories unless they could be
2230 found to already be built in or loaded. Move all the
2231 current engines except for the cryptodev one to a new
2233 The engines in engines/ are built as shared libraries if
2234 the "shared" options was given to ./Configure or ./config.
2235 Otherwise, they are inserted in libcrypto.a.
2236 /usr/local/ssl/engines is the default directory for dynamic
2237 engines, but that can be overriden at configure time through
2238 the usual use of --prefix and/or --openssldir, and at run
2239 time with the environment variable OPENSSL_ENGINES.
2240 [Geoff Thorpe and Richard Levitte]
2242 *) Add Makefile.shared, a helper makefile to build shared
2243 libraries. Addapt Makefile.org.
2246 *) Add version info to Win32 DLLs.
2247 [Peter 'Luna' Runestig" <peter@runestig.com>]
2249 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2250 can be added using this API to created arbitrary PKCS#12
2251 files while avoiding the low level API.
2253 New options to PKCS12_create(), key or cert can be NULL and
2254 will then be omitted from the output file. The encryption
2255 algorithm NIDs can be set to -1 for no encryption, the mac
2256 iteration count can be set to 0 to omit the mac.
2258 Enhance pkcs12 utility by making the -nokeys and -nocerts
2259 options work when creating a PKCS#12 file. New option -nomac
2260 to omit the mac, NONE can be set for an encryption algorithm.
2261 New code is modified to use the enhanced PKCS12_create()
2262 instead of the low level API.
2265 *) Extend ASN1 encoder to support indefinite length constructed
2266 encoding. This can output sequences tags and octet strings in
2267 this form. Modify pk7_asn1.c to support indefinite length
2268 encoding. This is experimental and needs additional code to
2269 be useful, such as an ASN1 bio and some enhanced streaming
2272 Extend template encode functionality so that tagging is passed
2273 down to the template encoder.
2276 *) Let 'openssl req' fail if an argument to '-newkey' is not
2277 recognized instead of using RSA as a default.
2280 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2281 As these are not official, they are not included in "ALL";
2282 the "ECCdraft" ciphersuite group alias can be used to select them.
2283 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2285 *) Add ECDH engine support.
2286 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2288 *) Add ECDH in new directory crypto/ecdh/.
2289 [Douglas Stebila (Sun Microsystems Laboratories)]
2291 *) Let BN_rand_range() abort with an error after 100 iterations
2292 without success (which indicates a broken PRNG).
2295 *) Change BN_mod_sqrt() so that it verifies that the input value
2296 is really the square of the return value. (Previously,
2297 BN_mod_sqrt would show GIGO behaviour.)
2300 *) Add named elliptic curves over binary fields from X9.62, SECG,
2301 and WAP/WTLS; add OIDs that were still missing.
2303 [Sheueling Chang Shantz and Douglas Stebila
2304 (Sun Microsystems Laboratories)]
2306 *) Extend the EC library for elliptic curves over binary fields
2307 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2310 EC_GF2m_simple_method
2314 EC_GROUP_new_curve_GF2m
2315 EC_GROUP_set_curve_GF2m
2316 EC_GROUP_get_curve_GF2m
2317 EC_POINT_set_affine_coordinates_GF2m
2318 EC_POINT_get_affine_coordinates_GF2m
2319 EC_POINT_set_compressed_coordinates_GF2m
2321 Point compression for binary fields is disabled by default for
2322 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2325 As binary polynomials are represented as BIGNUMs, various members
2326 of the EC_GROUP and EC_POINT data structures can be shared
2327 between the implementations for prime fields and binary fields;
2328 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2329 are essentially identical to their ..._GFp counterparts.
2330 (For simplicity, the '..._GFp' prefix has been dropped from
2331 various internal method names.)
2333 An internal 'field_div' method (similar to 'field_mul' and
2334 'field_sqr') has been added; this is used only for binary fields.
2336 [Sheueling Chang Shantz and Douglas Stebila
2337 (Sun Microsystems Laboratories)]
2339 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2340 through methods ('mul', 'precompute_mult').
2342 The generic implementations (now internally called 'ec_wNAF_mul'
2343 and 'ec_wNAF_precomputed_mult') remain the default if these
2344 methods are undefined.
2346 [Sheueling Chang Shantz and Douglas Stebila
2347 (Sun Microsystems Laboratories)]
2349 *) New function EC_GROUP_get_degree, which is defined through
2350 EC_METHOD. For curves over prime fields, this returns the bit
2351 length of the modulus.
2353 [Sheueling Chang Shantz and Douglas Stebila
2354 (Sun Microsystems Laboratories)]
2356 *) New functions EC_GROUP_dup, EC_POINT_dup.
2357 (These simply call ..._new and ..._copy).
2359 [Sheueling Chang Shantz and Douglas Stebila
2360 (Sun Microsystems Laboratories)]
2362 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2363 Polynomials are represented as BIGNUMs (where the sign bit is not
2364 used) in the following functions [macros]:
2367 BN_GF2m_sub [= BN_GF2m_add]
2368 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2369 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2370 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2372 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2373 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2374 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2375 BN_GF2m_cmp [= BN_ucmp]
2377 (Note that only the 'mod' functions are actually for fields GF(2^m).
2378 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2380 For some functions, an the irreducible polynomial defining a
2381 field can be given as an 'unsigned int[]' with strictly
2382 decreasing elements giving the indices of those bits that are set;
2383 i.e., p[] represents the polynomial
2384 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2386 p[0] > p[1] > ... > p[k] = 0.
2387 This applies to the following functions:
2392 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2393 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2395 BN_GF2m_mod_sqrt_arr
2396 BN_GF2m_mod_solve_quad_arr
2400 Conversion can be performed by the following functions:
2405 bntest.c has additional tests for binary polynomial arithmetic.
2407 Two implementations for BN_GF2m_mod_div() are available.
2408 The default algorithm simply uses BN_GF2m_mod_inv() and
2409 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2410 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2411 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2413 [Sheueling Chang Shantz and Douglas Stebila
2414 (Sun Microsystems Laboratories)]
2416 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2417 functionality is disabled at compile-time.
2418 [Douglas Stebila <douglas.stebila@sun.com>]
2420 *) Change default behaviour of 'openssl asn1parse' so that more
2421 information is visible when viewing, e.g., a certificate:
2423 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2424 mode the content of non-printable OCTET STRINGs is output in a
2425 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2426 avoid the appearance of a printable string.
2427 [Nils Larsch <nla@trustcenter.de>]
2429 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2431 EC_GROUP_set_asn1_flag()
2432 EC_GROUP_get_asn1_flag()
2433 EC_GROUP_set_point_conversion_form()
2434 EC_GROUP_get_point_conversion_form()
2435 These control ASN1 encoding details:
2436 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2437 has been set to OPENSSL_EC_NAMED_CURVE.
2438 - Points are encoded in uncompressed form by default; options for
2439 asn1_for are as for point2oct, namely
2440 POINT_CONVERSION_COMPRESSED
2441 POINT_CONVERSION_UNCOMPRESSED
2442 POINT_CONVERSION_HYBRID
2444 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2447 EC_GROUP_get0_seed()
2448 EC_GROUP_get_seed_len()
2449 This is used only for ASN1 purposes (so far).
2450 [Nils Larsch <nla@trustcenter.de>]
2452 *) Add 'field_type' member to EC_METHOD, which holds the NID
2453 of the appropriate field type OID. The new function
2454 EC_METHOD_get_field_type() returns this value.
2455 [Nils Larsch <nla@trustcenter.de>]
2460 EC_POINT_point2hex()
2461 EC_POINT_hex2point()
2462 providing useful interfaces to EC_POINT_point2oct() and
2463 EC_POINT_oct2point().
2464 [Nils Larsch <nla@trustcenter.de>]
2466 *) Change internals of the EC library so that the functions
2467 EC_GROUP_set_generator()
2468 EC_GROUP_get_generator()
2469 EC_GROUP_get_order()
2470 EC_GROUP_get_cofactor()
2471 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2472 to methods, which would lead to unnecessary code duplication when
2473 adding different types of curves.
2474 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2476 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2477 arithmetic, and such that modified wNAFs are generated
2478 (which avoid length expansion in many cases).
2481 *) Add a function EC_GROUP_check_discriminant() (defined via
2482 EC_METHOD) that verifies that the curve discriminant is non-zero.
2484 Add a function EC_GROUP_check() that makes some sanity tests
2485 on a EC_GROUP, its generator and order. This includes
2486 EC_GROUP_check_discriminant().
2487 [Nils Larsch <nla@trustcenter.de>]
2489 *) Add ECDSA in new directory crypto/ecdsa/.
2491 Add applications 'openssl ecparam' and 'openssl ecdsa'
2492 (these are based on 'openssl dsaparam' and 'openssl dsa').
2494 ECDSA support is also included in various other files across the
2495 library. Most notably,
2496 - 'openssl req' now has a '-newkey ecdsa:file' option;
2497 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2498 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2499 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2500 them suitable for ECDSA where domain parameters must be
2501 extracted before the specific public key;
2502 - ECDSA engine support has been added.
2503 [Nils Larsch <nla@trustcenter.de>]
2505 *) Include some named elliptic curves, and add OIDs from X9.62,
2506 SECG, and WAP/WTLS. Each curve can be obtained from the new
2508 EC_GROUP_new_by_curve_name(),
2509 and the list of available named curves can be obtained with
2510 EC_get_builtin_curves().
2511 Also add a 'curve_name' member to EC_GROUP objects, which can be
2513 EC_GROUP_set_curve_name()
2514 EC_GROUP_get_curve_name()
2515 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2517 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2518 was actually never needed) and in BN_mul(). The removal in BN_mul()
2519 required a small change in bn_mul_part_recursive() and the addition
2520 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2521 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2522 bn_sub_words() and bn_add_words() except they take arrays with
2526 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2528 *) Cleanse PEM buffers before freeing them since they may contain
2530 [Benjamin Bennett <ben@psc.edu>]
2532 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2533 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2534 authentication-only ciphersuites.
2537 *) Since AES128 and AES256 share a single mask bit in the logic of
2538 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2539 kludge to work properly if AES128 is available and AES256 isn't.
2542 *) Expand security boundary to match 1.1.1 module.
2545 *) Remove redundant features: hash file source, editing of test vectors
2546 modify fipsld to use external fips_premain.c signature.
2549 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2550 run algorithm test programs.
2553 *) Make algorithm test programs more tolerant of whitespace.
2556 *) Have SSL/TLS server implementation tolerate "mismatched" record
2557 protocol version while receiving ClientHello even if the
2558 ClientHello is fragmented. (The server can't insist on the
2559 particular protocol version it has chosen before the ServerHello
2560 message has informed the client about his choice.)
2563 *) Load error codes if they are not already present instead of using a
2564 static variable. This allows them to be cleanly unloaded and reloaded.
2567 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2569 *) Introduce limits to prevent malicious keys being able to
2570 cause a denial of service. (CVE-2006-2940)
2571 [Steve Henson, Bodo Moeller]
2573 *) Fix ASN.1 parsing of certain invalid structures that can result
2574 in a denial of service. (CVE-2006-2937) [Steve Henson]
2576 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2577 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2579 *) Fix SSL client code which could crash if connecting to a
2580 malicious SSLv2 server. (CVE-2006-4343)
2581 [Tavis Ormandy and Will Drewry, Google Security Team]
2583 *) Change ciphersuite string processing so that an explicit
2584 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2585 will no longer include "AES128-SHA"), and any other similar
2586 ciphersuite (same bitmap) from *other* protocol versions (so that
2587 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2588 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2589 changes from 0.9.8b and 0.9.8d.
2592 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2594 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2595 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2597 *) Change the Unix randomness entropy gathering to use poll() when
2598 possible instead of select(), since the latter has some
2599 undesirable limitations.
2600 [Darryl Miles via Richard Levitte and Bodo Moeller]
2602 *) Disable rogue ciphersuites:
2604 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2605 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2606 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2608 The latter two were purportedly from
2609 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2612 Also deactive the remaining ciphersuites from
2613 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2614 unofficial, and the ID has long expired.
2617 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2618 dual-core machines) and other potential thread-safety issues.
2621 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2623 *) Adapt fipsld and the build system to link against the validated FIPS
2624 module in FIPS mode.
2627 *) Fixes for VC++ 2005 build under Windows.
2630 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2631 from a Windows bash shell such as MSYS. It is autodetected from the
2632 "config" script when run from a VC++ environment. Modify standard VC++
2633 build to use fipscanister.o from the GNU make build.
2636 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2638 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2639 The value now differs depending on if you build for FIPS or not.
2640 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2641 safely run with a non-FIPSed libcrypto, as it may crash because of
2642 the difference induced by this change.
2645 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2647 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2648 (part of SSL_OP_ALL). This option used to disable the
2649 countermeasure against man-in-the-middle protocol-version
2650 rollback in the SSL 2.0 server implementation, which is a bad
2651 idea. (CVE-2005-2969)
2653 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2654 for Information Security, National Institute of Advanced Industrial
2655 Science and Technology [AIST], Japan)]
2657 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2658 mainly for FIPS compliance and not fully integrated at this stage.
2661 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2662 the exponentiation using a fixed-length exponent. (Otherwise,
2663 the information leaked through timing could expose the secret key
2664 after many signatures; cf. Bleichenbacher's attack on DSA with
2668 *) Make a new fixed-window mod_exp implementation the default for
2669 RSA, DSA, and DH private-key operations so that the sequence of
2670 squares and multiplies and the memory access pattern are
2671 independent of the particular secret key. This will mitigate
2672 cache-timing and potential related attacks.
2674 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2675 and this is automatically used by BN_mod_exp_mont() if the new flag
2676 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2677 will use this BN flag for private exponents unless the flag
2678 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2679 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2681 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2683 *) Change the client implementation for SSLv23_method() and
2684 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2685 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2686 (Previously, the SSL 2.0 backwards compatible Client Hello
2687 message format would be used even with SSL_OP_NO_SSLv2.)
2690 *) Add support for smime-type MIME parameter in S/MIME messages which some
2694 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2695 a threadsafe manner. Modify rsa code to use new function and add calls
2696 to dsa and dh code (which had race conditions before).
2699 *) Include the fixed error library code in the C error file definitions
2700 instead of fixing them up at runtime. This keeps the error code
2701 structures constant.
2704 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2706 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2709 *) Fixes for newer kerberos headers. NB: the casts are needed because
2710 the 'length' field is signed on one version and unsigned on another
2711 with no (?) obvious way to tell the difference, without these VC++
2712 complains. Also the "definition" of FAR (blank) is no longer included
2713 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2714 some needed definitions.
2717 *) Undo Cygwin change.
2720 *) Added support for proxy certificates according to RFC 3820.
2721 Because they may be a security thread to unaware applications,
2722 they must be explicitely allowed in run-time. See
2723 docs/HOWTO/proxy_certificates.txt for further information.
2726 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2728 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2729 server and client random values. Previously
2730 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2731 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2733 This change has negligible security impact because:
2735 1. Server and client random values still have 24 bytes of pseudo random
2738 2. Server and client random values are sent in the clear in the initial
2741 3. The master secret is derived using the premaster secret (48 bytes in
2742 size for static RSA ciphersuites) as well as client server and random
2745 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2748 [Stephen Henson, reported by UK NISCC]
2750 *) Use Windows randomness collection on Cygwin.
2753 *) Fix hang in EGD/PRNGD query when communication socket is closed
2754 prematurely by EGD/PRNGD.
2755 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2757 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2760 *) Back-port of selected performance improvements from development
2761 branch, as well as improved support for PowerPC platforms.
2764 *) Add lots of checks for memory allocation failure, error codes to indicate
2765 failure and freeing up memory if a failure occurs.
2766 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2768 *) Add new -passin argument to dgst.
2771 *) Perform some character comparisons of different types in X509_NAME_cmp:
2772 this is needed for some certificates that reencode DNs into UTF8Strings
2773 (in violation of RFC3280) and can't or wont issue name rollover
2777 *) Make an explicit check during certificate validation to see that
2778 the CA setting in each certificate on the chain is correct. As a
2779 side effect always do the following basic checks on extensions,
2780 not just when there's an associated purpose to the check:
2782 - if there is an unhandled critical extension (unless the user
2783 has chosen to ignore this fault)
2784 - if the path length has been exceeded (if one is set at all)
2785 - that certain extensions fit the associated purpose (if one has
2789 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2791 *) Avoid a race condition when CRLs are checked in a multi threaded
2792 environment. This would happen due to the reordering of the revoked
2793 entries during signature checking and serial number lookup. Now the
2794 encoding is cached and the serial number sort performed under a lock.
2795 Add new STACK function sk_is_sorted().
2798 *) Add Delta CRL to the extension code.
2801 *) Various fixes to s3_pkt.c so alerts are sent properly.
2802 [David Holmes <d.holmes@f5.com>]
2804 *) Reduce the chances of duplicate issuer name and serial numbers (in
2805 violation of RFC3280) using the OpenSSL certificate creation utilities.
2806 This is done by creating a random 64 bit value for the initial serial
2807 number when a serial number file is created or when a self signed
2808 certificate is created using 'openssl req -x509'. The initial serial
2809 number file is created using 'openssl x509 -next_serial' in CA.pl
2810 rather than being initialized to 1.
2813 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2815 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2816 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2817 [Joe Orton, Steve Henson]
2819 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2821 [Joe Orton, Steve Henson]
2823 *) Make it possible to have multiple active certificates with the same
2824 subject in the CA index file. This is done only if the keyword
2825 'unique_subject' is set to 'no' in the main CA section (default
2826 if 'CA_default') of the configuration file. The value is saved
2827 with the database itself in a separate index attribute file,
2828 named like the index file with '.attr' appended to the name.
2831 *) X509 verify fixes. Disable broken certificate workarounds when
2832 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2833 keyUsage extension present. Don't accept CRLs with unhandled critical
2834 extensions: since verify currently doesn't process CRL extensions this
2835 rejects a CRL with *any* critical extensions. Add new verify error codes
2839 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2840 A clarification of RFC2560 will require the use of OCTET STRINGs and
2841 some implementations cannot handle the current raw format. Since OpenSSL
2842 copies and compares OCSP nonces as opaque blobs without any attempt at
2843 parsing them this should not create any compatibility issues.
2846 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2847 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2848 this HMAC (and other) operations are several times slower than OpenSSL
2852 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2853 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2855 *) Use the correct content when signing type "other".
2858 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2860 *) Fix various bugs revealed by running the NISCC test suite:
2862 Stop out of bounds reads in the ASN1 code when presented with
2863 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2865 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2867 If verify callback ignores invalid public key errors don't try to check
2868 certificate signature with the NULL public key.
2872 *) New -ignore_err option in ocsp application to stop the server
2873 exiting on the first error in a request.
2876 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2877 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2881 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2882 extra data after the compression methods not only for TLS 1.0
2883 but also for SSL 3.0 (as required by the specification).
2884 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2886 *) Change X509_certificate_type() to mark the key as exported/exportable
2887 when it's 512 *bits* long, not 512 bytes.
2890 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2891 blocks during encryption.
2894 *) Various fixes to base64 BIO and non blocking I/O. On write
2895 flushes were not handled properly if the BIO retried. On read
2896 data was not being buffered properly and had various logic bugs.
2897 This also affects blocking I/O when the data being decoded is a
2901 *) Various S/MIME bugfixes and compatibility changes:
2902 output correct application/pkcs7 MIME type if
2903 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2904 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2905 of files as .eml work). Correctly handle very long lines in MIME
2909 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2911 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2912 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2913 a protocol version number mismatch like a decryption error
2914 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2917 *) Turn on RSA blinding by default in the default implementation
2918 to avoid a timing attack. Applications that don't want it can call
2919 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2920 They would be ill-advised to do so in most cases.
2921 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2923 *) Change RSA blinding code so that it works when the PRNG is not
2924 seeded (in this case, the secret RSA exponent is abused as
2925 an unpredictable seed -- if it is not unpredictable, there
2926 is no point in blinding anyway). Make RSA blinding thread-safe
2927 by remembering the creator's thread ID in rsa->blinding and
2928 having all other threads use local one-time blinding factors
2929 (this requires more computation than sharing rsa->blinding, but
2930 avoids excessive locking; and if an RSA object is not shared
2931 between threads, blinding will still be very fast).
2934 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2935 ENGINE as defaults for all supported algorithms irrespective of
2936 the 'flags' parameter. 'flags' is now honoured, so applications
2937 should make sure they are passing it correctly.
2940 *) Target "mingw" now allows native Windows code to be generated in
2941 the Cygwin environment as well as with the MinGW compiler.
2944 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2946 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2947 via timing by performing a MAC computation even if incorrrect
2948 block cipher padding has been found. This is a countermeasure
2949 against active attacks where the attacker has to distinguish
2950 between bad padding and a MAC verification error. (CVE-2003-0078)
2952 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2953 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2954 Martin Vuagnoux (EPFL, Ilion)]
2956 *) Make the no-err option work as intended. The intention with no-err
2957 is not to have the whole error stack handling routines removed from
2958 libcrypto, it's only intended to remove all the function name and
2959 reason texts, thereby removing some of the footprint that may not
2960 be interesting if those errors aren't displayed anyway.
2962 NOTE: it's still possible for any application or module to have it's
2963 own set of error texts inserted. The routines are there, just not
2964 used by default when no-err is given.
2967 *) Add support for FreeBSD on IA64.
2968 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2970 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2971 Kerberos function mit_des_cbc_cksum(). Before this change,
2972 the value returned by DES_cbc_cksum() was like the one from
2973 mit_des_cbc_cksum(), except the bytes were swapped.
2974 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2976 *) Allow an application to disable the automatic SSL chain building.
2977 Before this a rather primitive chain build was always performed in
2978 ssl3_output_cert_chain(): an application had no way to send the
2979 correct chain if the automatic operation produced an incorrect result.
2981 Now the chain builder is disabled if either:
2983 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2985 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2987 The reasoning behind this is that an application would not want the
2988 auto chain building to take place if extra chain certificates are
2989 present and it might also want a means of sending no additional
2990 certificates (for example the chain has two certificates and the
2994 *) Add the possibility to build without the ENGINE framework.
2995 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2997 *) Under Win32 gmtime() can return NULL: check return value in
2998 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3001 *) DSA routines: under certain error conditions uninitialized BN objects
3002 could be freed. Solution: make sure initialization is performed early
3003 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3004 Nils Larsch <nla@trustcenter.de> via PR#459)
3007 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3008 checked on reconnect on the client side, therefore session resumption
3009 could still fail with a "ssl session id is different" error. This
3010 behaviour is masked when SSL_OP_ALL is used due to
3011 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3012 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3013 followup to PR #377.
3016 *) IA-32 assembler support enhancements: unified ELF targets, support
3017 for SCO/Caldera platforms, fix for Cygwin shared build.
3020 *) Add support for FreeBSD on sparc64. As a consequence, support for
3021 FreeBSD on non-x86 processors is separate from x86 processors on
3022 the config script, much like the NetBSD support.
3023 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3025 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3027 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3030 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3031 code (06) was taken as the first octet of the session ID and the last
3032 octet was ignored consequently. As a result SSLv2 client side session
3033 caching could not have worked due to the session ID mismatch between
3035 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3039 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3040 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3044 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3045 seems that in spite of existing for more than a year, many application
3046 author have done nothing to provide the necessary callbacks, which
3047 means that this particular engine will not work properly anywhere.
3048 This is a very unfortunate situation which forces us, in the name
3049 of usability, to give the hw_ncipher.c a static lock, which is part
3051 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3052 appear in 0.9.8 or later. We EXPECT application authors to have
3053 dealt properly with this when 0.9.8 is released (unless we actually
3054 make such changes in the libcrypto locking code that changes will
3055 have to be made anyway).
3058 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3059 octets have been read, EOF or an error occurs. Without this change
3060 some truncated ASN1 structures will not produce an error.
3063 *) Disable Heimdal support, since it hasn't been fully implemented.
3064 Still give the possibility to force the use of Heimdal, but with
3065 warnings and a request that patches get sent to openssl-dev.
3068 *) Add the VC-CE target, introduce the WINCE sysname, and add
3069 INSTALL.WCE and appropriate conditionals to make it build.
3070 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3072 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3073 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3074 edit numbers of the version.
3075 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3077 *) Introduce safe string copy and catenation functions
3078 (BUF_strlcpy() and BUF_strlcat()).
3079 [Ben Laurie (CHATS) and Richard Levitte]
3081 *) Avoid using fixed-size buffers for one-line DNs.
3082 [Ben Laurie (CHATS)]
3084 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3085 resizing buffers containing secrets, and use where appropriate.
3086 [Ben Laurie (CHATS)]
3088 *) Avoid using fixed size buffers for configuration file location.
3089 [Ben Laurie (CHATS)]
3091 *) Avoid filename truncation for various CA files.
3092 [Ben Laurie (CHATS)]
3094 *) Use sizeof in preference to magic numbers.
3095 [Ben Laurie (CHATS)]
3097 *) Avoid filename truncation in cert requests.
3098 [Ben Laurie (CHATS)]
3100 *) Add assertions to check for (supposedly impossible) buffer
3102 [Ben Laurie (CHATS)]
3104 *) Don't cache truncated DNS entries in the local cache (this could
3105 potentially lead to a spoofing attack).
3106 [Ben Laurie (CHATS)]
3108 *) Fix various buffers to be large enough for hex/decimal
3109 representations in a platform independent manner.
3110 [Ben Laurie (CHATS)]
3112 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3113 resizing buffers containing secrets, and use where appropriate.
3114 [Ben Laurie (CHATS)]
3116 *) Add BIO_indent() to avoid much slightly worrying code to do
3118 [Ben Laurie (CHATS)]
3120 *) Convert sprintf()/BIO_puts() to BIO_printf().
3121 [Ben Laurie (CHATS)]
3123 *) buffer_gets() could terminate with the buffer only half
3125 [Ben Laurie (CHATS)]
3127 *) Add assertions to prevent user-supplied crypto functions from
3128 overflowing internal buffers by having large block sizes, etc.
3129 [Ben Laurie (CHATS)]
3131 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3133 [Ben Laurie (CHATS)]
3135 *) Eliminate unused copy of key in RC4.
3136 [Ben Laurie (CHATS)]
3138 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3139 [Ben Laurie (CHATS)]
3141 *) Fix off-by-one error in EGD path.
3142 [Ben Laurie (CHATS)]
3144 *) If RANDFILE path is too long, ignore instead of truncating.
3145 [Ben Laurie (CHATS)]
3147 *) Eliminate unused and incorrectly sized X.509 structure
3149 [Ben Laurie (CHATS)]
3151 *) Eliminate unused and dangerous function knumber().
3152 [Ben Laurie (CHATS)]
3154 *) Eliminate unused and dangerous structure, KSSL_ERR.
3155 [Ben Laurie (CHATS)]
3157 *) Protect against overlong session ID context length in an encoded
3158 session object. Since these are local, this does not appear to be
3160 [Ben Laurie (CHATS)]
3162 *) Change from security patch (see 0.9.6e below) that did not affect
3163 the 0.9.6 release series:
3165 Remote buffer overflow in SSL3 protocol - an attacker could
3166 supply an oversized master key in Kerberos-enabled versions.
3168 [Ben Laurie (CHATS)]
3170 *) Change the SSL kerb5 codes to match RFC 2712.
3173 *) Make -nameopt work fully for req and add -reqopt switch.
3174 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3176 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3177 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3179 *) Make sure tests can be performed even if the corresponding algorithms
3180 have been removed entirely. This was also the last step to make
3181 OpenSSL compilable with DJGPP under all reasonable conditions.
3182 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3184 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3185 to allow version independent disabling of normally unselected ciphers,
3186 which may be activated as a side-effect of selecting a single cipher.
3188 (E.g., cipher list string "RSA" enables ciphersuites that are left
3189 out of "ALL" because they do not provide symmetric encryption.
3190 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3191 [Lutz Jaenicke, Bodo Moeller]
3193 *) Add appropriate support for separate platform-dependent build
3194 directories. The recommended way to make a platform-dependent
3195 build directory is the following (tested on Linux), maybe with
3198 # Place yourself outside of the OpenSSL source tree. In
3199 # this example, the environment variable OPENSSL_SOURCE
3200 # is assumed to contain the absolute OpenSSL source directory.
3201 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3202 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3203 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3204 mkdir -p `dirname $F`
3205 ln -s $OPENSSL_SOURCE/$F $F
3208 To be absolutely sure not to disturb the source tree, a "make clean"
3209 is a good thing. If it isn't successfull, don't worry about it,
3210 it probably means the source directory is very clean.
3213 *) Make sure any ENGINE control commands make local copies of string
3214 pointers passed to them whenever necessary. Otherwise it is possible
3215 the caller may have overwritten (or deallocated) the original string
3216 data when a later ENGINE operation tries to use the stored values.
3217 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3219 *) Improve diagnostics in file reading and command-line digests.
3220 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3222 *) Add AES modes CFB and OFB to the object database. Correct an
3223 error in AES-CFB decryption.
3226 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3227 allows existing EVP_CIPHER_CTX structures to be reused after
3228 calling EVP_*Final(). This behaviour is used by encryption
3229 BIOs and some applications. This has the side effect that
3230 applications must explicitly clean up cipher contexts with
3231 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3234 *) Check the values of dna and dnb in bn_mul_recursive before calling
3235 bn_mul_comba (a non zero value means the a or b arrays do not contain
3236 n2 elements) and fallback to bn_mul_normal if either is not zero.
3239 *) Fix escaping of non-ASCII characters when using the -subj option
3240 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3243 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3244 form for "surname", serialNumber has no short form.
3245 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3246 therefore remove "mail" short name for "internet 7".
3247 The OID for unique identifiers in X509 certificates is
3248 x500UniqueIdentifier, not uniqueIdentifier.
3249 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3252 *) Add an "init" command to the ENGINE config module and auto initialize
3253 ENGINEs. Without any "init" command the ENGINE will be initialized
3254 after all ctrl commands have been executed on it. If init=1 the
3255 ENGINE is initailized at that point (ctrls before that point are run
3256 on the uninitialized ENGINE and after on the initialized one). If
3257 init=0 then the ENGINE will not be iniatialized at all.
3260 *) Fix the 'app_verify_callback' interface so that the user-defined
3261 argument is actually passed to the callback: In the
3262 SSL_CTX_set_cert_verify_callback() prototype, the callback
3263 declaration has been changed from
3266 int (*cb)(X509_STORE_CTX *,void *);
3267 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3268 i=s->ctx->app_verify_callback(&ctx)
3269 has been changed into
3270 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3272 To update applications using SSL_CTX_set_cert_verify_callback(),
3273 a dummy argument can be added to their callback functions.
3274 [D. K. Smetters <smetters@parc.xerox.com>]
3276 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3277 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3279 *) Add and OPENSSL_LOAD_CONF define which will cause
3280 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3281 This allows older applications to transparently support certain
3282 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3283 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3284 load the config file and OPENSSL_add_all_algorithms_conf() which will
3285 always load it have also been added.
3288 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3289 Adjust NIDs and EVP layer.
3290 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3292 *) Config modules support in openssl utility.
3294 Most commands now load modules from the config file,
3295 though in a few (such as version) this isn't done
3296 because it couldn't be used for anything.
3298 In the case of ca and req the config file used is
3299 the same as the utility itself: that is the -config
3300 command line option can be used to specify an
3304 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3305 use "openssl_conf" if filename is NULL use default openssl config file.
3308 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3309 config section name. Add a new flag to tolerate a missing config file
3310 and move code to CONF_modules_load_file().
3313 *) Support for crypto accelerator cards from Accelerated Encryption
3314 Processing, www.aep.ie. (Use engine 'aep')
3315 The support was copied from 0.9.6c [engine] and adapted/corrected
3316 to work with the new engine framework.
3317 [AEP Inc. and Richard Levitte]
3319 *) Support for SureWare crypto accelerator cards from Baltimore
3320 Technologies. (Use engine 'sureware')
3321 The support was copied from 0.9.6c [engine] and adapted
3322 to work with the new engine framework.
3325 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3326 make the newer ENGINE framework commands for the CHIL engine work.
3327 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3329 *) Make it possible to produce shared libraries on ReliantUNIX.
3330 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3332 *) Add the configuration target debug-linux-ppro.
3333 Make 'openssl rsa' use the general key loading routines
3334 implemented in apps.c, and make those routines able to
3335 handle the key format FORMAT_NETSCAPE and the variant
3337 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3339 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3340 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3342 *) Add -keyform to rsautl, and document -engine.
3343 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3345 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3346 BIO_R_NO_SUCH_FILE error code rather than the generic
3347 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3350 *) Add new functions
3352 ERR_peek_last_error_line
3353 ERR_peek_last_error_line_data.
3354 These are similar to
3357 ERR_peek_error_line_data,
3358 but report on the latest error recorded rather than the first one
3359 still in the error queue.
3360 [Ben Laurie, Bodo Moeller]
3362 *) default_algorithms option in ENGINE config module. This allows things
3364 default_algorithms = ALL
3365 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3368 *) Prelminary ENGINE config module.
3371 *) New experimental application configuration code.
3374 *) Change the AES code to follow the same name structure as all other
3375 symmetric ciphers, and behave the same way. Move everything to
3376 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3377 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3379 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3380 [Ben Laurie and Theo de Raadt]
3382 *) Add option to output public keys in req command.
3383 [Massimiliano Pala madwolf@openca.org]
3385 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3386 (up to about 10% better than before for P-192 and P-224).
3389 *) New functions/macros
3391 SSL_CTX_set_msg_callback(ctx, cb)
3392 SSL_CTX_set_msg_callback_arg(ctx, arg)
3393 SSL_set_msg_callback(ssl, cb)
3394 SSL_set_msg_callback_arg(ssl, arg)
3396 to request calling a callback function
3398 void cb(int write_p, int version, int content_type,
3399 const void *buf, size_t len, SSL *ssl, void *arg)
3401 whenever a protocol message has been completely received
3402 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3403 protocol version according to which the SSL library interprets
3404 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3405 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3406 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3407 specification (change_cipher_spec(20), alert(21), handshake(22)).
3408 'buf' and 'len' point to the actual message, 'ssl' to the
3409 SSL object, and 'arg' is the application-defined value set by
3410 SSL[_CTX]_set_msg_callback_arg().
3412 'openssl s_client' and 'openssl s_server' have new '-msg' options
3413 to enable a callback that displays all protocol messages.
3416 *) Change the shared library support so shared libraries are built as
3417 soon as the corresponding static library is finished, and thereby get
3418 openssl and the test programs linked against the shared library.
3419 This still only happens when the keyword "shard" has been given to
3420 the configuration scripts.
3422 NOTE: shared library support is still an experimental thing, and
3423 backward binary compatibility is still not guaranteed.
3424 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3426 *) Add support for Subject Information Access extension.
3427 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3429 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3430 additional bytes when new memory had to be allocated, not just
3431 when reusing an existing buffer.
3434 *) New command line and configuration option 'utf8' for the req command.
3435 This allows field values to be specified as UTF8 strings.
3438 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3439 runs for the former and machine-readable output for the latter.
3442 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3443 of the e-mail address in the DN (i.e., it will go into a certificate
3444 extension only). The new configuration file option 'email_in_dn = no'
3445 has the same effect.
3446 [Massimiliano Pala madwolf@openca.org]
3448 *) Change all functions with names starting with des_ to be starting
3449 with DES_ instead. Add wrappers that are compatible with libdes,
3450 but are named _ossl_old_des_*. Finally, add macros that map the
3451 des_* symbols to the corresponding _ossl_old_des_* if libdes
3452 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3453 desired, the des_* symbols will be mapped to DES_*, with one
3456 Since we provide two compatibility mappings, the user needs to
3457 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3458 compatibility is desired. The default (i.e., when that macro
3459 isn't defined) is OpenSSL 0.9.6c compatibility.
3461 There are also macros that enable and disable the support of old
3462 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3463 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3464 are defined, the default will apply: to support the old des routines.
3466 In either case, one must include openssl/des.h to get the correct
3467 definitions. Do not try to just include openssl/des_old.h, that
3470 NOTE: This is a major break of an old API into a new one. Software
3471 authors are encouraged to switch to the DES_ style functions. Some
3472 time in the future, des_old.h and the libdes compatibility functions
3473 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3474 default), and then completely removed.
3477 *) Test for certificates which contain unsupported critical extensions.
3478 If such a certificate is found during a verify operation it is
3479 rejected by default: this behaviour can be overridden by either
3480 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3481 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3482 X509_supported_extension() has also been added which returns 1 if a
3483 particular extension is supported.
3486 *) Modify the behaviour of EVP cipher functions in similar way to digests
3487 to retain compatibility with existing code.
3490 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3491 compatibility with existing code. In particular the 'ctx' parameter does
3492 not have to be to be initialized before the call to EVP_DigestInit() and
3493 it is tidied up after a call to EVP_DigestFinal(). New function
3494 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3495 EVP_MD_CTX_copy() changed to not require the destination to be
3496 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3497 requires the destination to be valid.
3499 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3500 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3503 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3504 so that complete 'Handshake' protocol structures are kept in memory
3505 instead of overwriting 'msg_type' and 'length' with 'body' data.
3508 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3509 [Massimo Santin via Richard Levitte]
3511 *) Major restructuring to the underlying ENGINE code. This includes
3512 reduction of linker bloat, separation of pure "ENGINE" manipulation
3513 (initialisation, etc) from functionality dealing with implementations
3514 of specific crypto iterfaces. This change also introduces integrated
3515 support for symmetric ciphers and digest implementations - so ENGINEs
3516 can now accelerate these by providing EVP_CIPHER and EVP_MD
3517 implementations of their own. This is detailed in crypto/engine/README
3518 as it couldn't be adequately described here. However, there are a few
3519 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3520 were changed in the original introduction of ENGINE code have now
3521 reverted back - the hooking from this code to ENGINE is now a good
3522 deal more passive and at run-time, operations deal directly with
3523 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3524 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3525 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3526 they were not being used by the framework as there is no concept of a
3527 BIGNUM_METHOD and they could not be generalised to the new
3528 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3529 ENGINE_cpy() has been removed as it cannot be consistently defined in
3533 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3536 *) Change mkdef.pl to sort symbols that get the same entry number,
3537 and make sure the automatically generated functions ERR_load_*
3538 become part of libeay.num as well.
3541 *) New function SSL_renegotiate_pending(). This returns true once
3542 renegotiation has been requested (either SSL_renegotiate() call
3543 or HelloRequest/ClientHello receveived from the peer) and becomes
3544 false once a handshake has been completed.
3545 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3546 sends a HelloRequest, but does not ensure that a handshake takes
3547 place. SSL_renegotiate_pending() is useful for checking if the
3548 client has followed the request.)
3551 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3552 By default, clients may request session resumption even during
3553 renegotiation (if session ID contexts permit); with this option,
3554 session resumption is possible only in the first handshake.
3556 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3557 more bits available for options that should not be part of
3558 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3561 *) Add some demos for certificate and certificate request creation.
3564 *) Make maximum certificate chain size accepted from the peer application
3565 settable (SSL*_get/set_max_cert_list()), as proposed by
3566 "Douglas E. Engert" <deengert@anl.gov>.
3569 *) Add support for shared libraries for Unixware-7
3570 (Boyd Lynn Gerber <gerberb@zenez.com>).
3573 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3574 be done prior to destruction. Use this to unload error strings from
3575 ENGINEs that load their own error strings. NB: This adds two new API
3576 functions to "get" and "set" this destroy handler in an ENGINE.
3579 *) Alter all existing ENGINE implementations (except "openssl" and
3580 "openbsd") to dynamically instantiate their own error strings. This
3581 makes them more flexible to be built both as statically-linked ENGINEs
3582 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3583 Also, add stub code to each that makes building them as self-contained
3584 shared-libraries easier (see README.ENGINE).
3587 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3588 implementations into applications that are completely implemented in
3589 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3590 commands that can be used to configure what shared-library to load and
3591 to control aspects of the way it is handled. Also, made an update to
3592 the README.ENGINE file that brings its information up-to-date and
3593 provides some information and instructions on the "dynamic" ENGINE
3594 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3597 *) Make it possible to unload ranges of ERR strings with a new
3598 "ERR_unload_strings" function.
3601 *) Add a copy() function to EVP_MD.
3604 *) Make EVP_MD routines take a context pointer instead of just the
3605 md_data void pointer.
3608 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3609 that the digest can only process a single chunk of data
3610 (typically because it is provided by a piece of
3611 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3612 is only going to provide a single chunk of data, and hence the
3613 framework needn't accumulate the data for oneshot drivers.
3616 *) As with "ERR", make it possible to replace the underlying "ex_data"
3617 functions. This change also alters the storage and management of global
3618 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3619 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3620 index counters. The API functions that use this state have been changed
3621 to take a "class_index" rather than pointers to the class's local STACK
3622 and counter, and there is now an API function to dynamically create new
3623 classes. This centralisation allows us to (a) plug a lot of the
3624 thread-safety problems that existed, and (b) makes it possible to clean
3625 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3626 such data would previously have always leaked in application code and
3627 workarounds were in place to make the memory debugging turn a blind eye
3628 to it. Application code that doesn't use this new function will still
3629 leak as before, but their memory debugging output will announce it now
3630 rather than letting it slide.
3632 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3633 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3634 has a return value to indicate success or failure.
3637 *) Make it possible to replace the underlying "ERR" functions such that the
3638 global state (2 LHASH tables and 2 locks) is only used by the "default"
3639 implementation. This change also adds two functions to "get" and "set"
3640 the implementation prior to it being automatically set the first time
3641 any other ERR function takes place. Ie. an application can call "get",
3642 pass the return value to a module it has just loaded, and that module
3643 can call its own "set" function using that value. This means the
3644 module's "ERR" operations will use (and modify) the error state in the
3645 application and not in its own statically linked copy of OpenSSL code.
3648 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3649 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3650 the operation, and provides a more encapsulated way for external code
3651 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3652 to use these functions rather than manually incrementing the counts.
3654 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3657 *) Add EVP test program.
3660 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3663 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3664 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3665 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3666 These allow a CRL to be built without having to access X509_CRL fields
3667 directly. Modify 'ca' application to use new functions.
3670 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3671 bug workarounds. Rollback attack detection is a security feature.
3672 The problem will only arise on OpenSSL servers when TLSv1 is not
3673 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3674 Software authors not wanting to support TLSv1 will have special reasons
3675 for their choice and can explicitly enable this option.
3676 [Bodo Moeller, Lutz Jaenicke]
3678 *) Rationalise EVP so it can be extended: don't include a union of
3679 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3680 (similar to those existing for EVP_CIPHER_CTX).
3685 EVP_MD_CTX_init(&md); /* new function call */
3686 EVP_DigestInit(&md, EVP_sha1());
3687 EVP_DigestUpdate(&md, in, len);
3688 EVP_DigestFinal(&md, out, NULL);
3689 EVP_MD_CTX_cleanup(&md); /* new function call */
3693 *) Make DES key schedule conform to the usual scheme, as well as
3694 correcting its structure. This means that calls to DES functions
3695 now have to pass a pointer to a des_key_schedule instead of a
3696 plain des_key_schedule (which was actually always a pointer
3699 des_key_schedule ks;
3701 des_set_key_checked(..., &ks);
3702 des_ncbc_encrypt(..., &ks, ...);
3704 (Note that a later change renames 'des_...' into 'DES_...'.)
3707 *) Initial reduction of linker bloat: the use of some functions, such as
3708 PEM causes large amounts of unused functions to be linked in due to
3709 poor organisation. For example pem_all.c contains every PEM function
3710 which has a knock on effect of linking in large amounts of (unused)
3711 ASN1 code. Grouping together similar functions and splitting unrelated
3712 functions prevents this.
3715 *) Cleanup of EVP macros.
3718 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3719 correct _ecb suffix.
3722 *) Add initial OCSP responder support to ocsp application. The
3723 revocation information is handled using the text based index
3724 use by the ca application. The responder can either handle
3725 requests generated internally, supplied in files (for example
3726 via a CGI script) or using an internal minimal server.
3729 *) Add configuration choices to get zlib compression for TLS.
3732 *) Changes to Kerberos SSL for RFC 2712 compliance:
3733 1. Implemented real KerberosWrapper, instead of just using
3734 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3735 2. Implemented optional authenticator field of KerberosWrapper.
3737 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3738 and authenticator structs; see crypto/krb5/.
3740 Generalized Kerberos calls to support multiple Kerberos libraries.
3741 [Vern Staats <staatsvr@asc.hpc.mil>,
3742 Jeffrey Altman <jaltman@columbia.edu>
3743 via Richard Levitte]
3745 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3746 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3747 values for each of the key sizes rather than having just
3748 parameters (and 'speed' generating keys each time).
3751 *) Speed up EVP routines.
3754 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3755 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3756 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3757 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3759 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3760 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3761 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3764 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3766 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3769 *) Added the OS2-EMX target.
3770 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3772 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3773 to support NCONF routines in extension code. New function CONF_set_nconf()
3774 to allow functions which take an NCONF to also handle the old LHASH
3775 structure: this means that the old CONF compatible routines can be
3776 retained (in particular wrt extensions) without having to duplicate the
3777 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3780 *) Enhance the general user interface with mechanisms for inner control
3781 and with possibilities to have yes/no kind of prompts.
3784 *) Change all calls to low level digest routines in the library and
3785 applications to use EVP. Add missing calls to HMAC_cleanup() and
3786 don't assume HMAC_CTX can be copied using memcpy().
3787 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3789 *) Add the possibility to control engines through control names but with
3790 arbitrary arguments instead of just a string.
3791 Change the key loaders to take a UI_METHOD instead of a callback
3792 function pointer. NOTE: this breaks binary compatibility with earlier
3793 versions of OpenSSL [engine].
3794 Adapt the nCipher code for these new conditions and add a card insertion
3798 *) Enhance the general user interface with mechanisms to better support
3799 dialog box interfaces, application-defined prompts, the possibility
3800 to use defaults (for example default passwords from somewhere else)
3801 and interrupts/cancellations.
3804 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3805 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3808 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3809 tidy up some unnecessarily weird code in 'sk_new()').
3810 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3812 *) Change the key loading routines for ENGINEs to use the same kind
3813 callback (pem_password_cb) as all other routines that need this
3817 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3818 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3819 than this minimum value is recommended.
3822 *) New random seeder for OpenVMS, using the system process statistics
3823 that are easily reachable.
3826 *) Windows apparently can't transparently handle global
3827 variables defined in DLLs. Initialisations such as:
3829 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3831 wont compile. This is used by the any applications that need to
3832 declare their own ASN1 modules. This was fixed by adding the option
3833 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3834 needed for static libraries under Win32.
3837 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3838 setting of purpose and trust fields. New X509_STORE trust and
3839 purpose functions and tidy up setting in other SSL functions.
3842 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3843 structure. These are inherited by X509_STORE_CTX when it is
3844 initialised. This allows various defaults to be set in the
3845 X509_STORE structure (such as flags for CRL checking and custom
3846 purpose or trust settings) for functions which only use X509_STORE_CTX
3847 internally such as S/MIME.
3849 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3850 trust settings if they are not set in X509_STORE. This allows X509_STORE
3851 purposes and trust (in S/MIME for example) to override any set by default.
3853 Add command line options for CRL checking to smime, s_client and s_server
3857 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3858 are set then the CRL is looked up in the X509_STORE structure and
3859 its validity and signature checked, then if the certificate is found
3860 in the CRL the verify fails with a revoked error.
3862 Various new CRL related callbacks added to X509_STORE_CTX structure.
3864 Command line options added to 'verify' application to support this.
3866 This needs some additional work, such as being able to handle multiple
3867 CRLs with different times, extension based lookup (rather than just
3868 by subject name) and ultimately more complete V2 CRL extension
3872 *) Add a general user interface API (crypto/ui/). This is designed
3873 to replace things like des_read_password and friends (backward
3874 compatibility functions using this new API are provided).
3875 The purpose is to remove prompting functions from the DES code
3876 section as well as provide for prompting through dialog boxes in
3877 a window system and the like.
3880 *) Add "ex_data" support to ENGINE so implementations can add state at a
3881 per-structure level rather than having to store it globally.
3884 *) Make it possible for ENGINE structures to be copied when retrieved by
3885 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3886 This causes the "original" ENGINE structure to act like a template,
3887 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3888 operational state can be localised to each ENGINE structure, despite the
3889 fact they all share the same "methods". New ENGINE structures returned in
3890 this case have no functional references and the return value is the single
3891 structural reference. This matches the single structural reference returned
3892 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3896 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3897 needs to match any other type at all we need to manually clear the
3901 *) Changes to the "openssl engine" utility to include;
3902 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3903 about an ENGINE's available control commands.
3904 - executing control commands from command line arguments using the
3905 '-pre' and '-post' switches. '-post' is only used if '-t' is
3906 specified and the ENGINE is successfully initialised. The syntax for
3907 the individual commands are colon-separated, for example;
3908 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3911 *) New dynamic control command support for ENGINEs. ENGINEs can now
3912 declare their own commands (numbers), names (strings), descriptions,
3913 and input types for run-time discovery by calling applications. A
3914 subset of these commands are implicitly classed as "executable"
3915 depending on their input type, and only these can be invoked through
3916 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3917 can be based on user input, config files, etc). The distinction is
3918 that "executable" commands cannot return anything other than a boolean
3919 result and can only support numeric or string input, whereas some
3920 discoverable commands may only be for direct use through
3921 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3922 pointers, or other custom uses. The "executable" commands are to
3923 support parameterisations of ENGINE behaviour that can be
3924 unambiguously defined by ENGINEs and used consistently across any
3925 OpenSSL-based application. Commands have been added to all the
3926 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3927 control over shared-library paths without source code alterations.
3930 *) Changed all ENGINE implementations to dynamically allocate their
3931 ENGINEs rather than declaring them statically. Apart from this being
3932 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3933 this also allows the implementations to compile without using the
3934 internal engine_int.h header.
3937 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3938 'const' value. Any code that should be able to modify a RAND_METHOD
3939 should already have non-const pointers to it (ie. they should only
3940 modify their own ones).
3943 *) Made a variety of little tweaks to the ENGINE code.
3944 - "atalla" and "ubsec" string definitions were moved from header files
3945 to C code. "nuron" string definitions were placed in variables
3946 rather than hard-coded - allowing parameterisation of these values
3947 later on via ctrl() commands.
3948 - Removed unused "#if 0"'d code.
3949 - Fixed engine list iteration code so it uses ENGINE_free() to release
3950 structural references.
3951 - Constified the RAND_METHOD element of ENGINE structures.
3952 - Constified various get/set functions as appropriate and added
3953 missing functions (including a catch-all ENGINE_cpy that duplicates
3954 all ENGINE values onto a new ENGINE except reference counts/state).
3955 - Removed NULL parameter checks in get/set functions. Setting a method
3956 or function to NULL is a way of cancelling out a previously set
3957 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3958 and doesn't justify the extra error symbols and code.
3959 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3960 flags from engine_int.h to engine.h.
3961 - Changed prototypes for ENGINE handler functions (init(), finish(),
3962 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3965 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3966 to the algorithm using long division. The binary algorithm can be
3967 used only if the modulus is odd. On 32-bit systems, it is faster
3968 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3969 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3970 up to 450 bits. In 64-bit environments, the binary algorithm
3971 appears to be advantageous for much longer moduli; here we use it
3972 for moduli up to 2048 bits.
3975 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3976 could not support the combine flag in choice fields.
3979 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3980 extensions from a certificate request to the certificate.
3983 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3984 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3985 file: this allows the display of the certificate about to be
3986 signed to be customised, to allow certain fields to be included
3987 or excluded and extension details. The old system didn't display
3988 multicharacter strings properly, omitted fields not in the policy
3989 and couldn't display additional details such as extensions.
3992 *) Function EC_POINTs_mul for multiple scalar multiplication
3993 of an arbitrary number of elliptic curve points
3994 \sum scalars[i]*points[i],
3995 optionally including the generator defined for the EC_GROUP:
3996 scalar*generator + \sum scalars[i]*points[i].
3998 EC_POINT_mul is a simple wrapper function for the typical case
3999 that the point list has just one item (besides the optional
4003 *) First EC_METHODs for curves over GF(p):
4005 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4006 operations and provides various method functions that can also
4007 operate with faster implementations of modular arithmetic.
4009 EC_GFp_mont_method() reuses most functions that are part of
4010 EC_GFp_simple_method, but uses Montgomery arithmetic.
4012 [Bodo Moeller; point addition and point doubling
4013 implementation directly derived from source code provided by
4014 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4016 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4017 crypto/ec/ec_lib.c):
4019 Curves are EC_GROUP objects (with an optional group generator)
4020 based on EC_METHODs that are built into the library.
4022 Points are EC_POINT objects based on EC_GROUP objects.
4024 Most of the framework would be able to handle curves over arbitrary
4025 finite fields, but as there are no obvious types for fields other
4026 than GF(p), some functions are limited to that for now.
4029 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4030 that the file contains a complete HTTP response.
4033 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4034 change the def and num file printf format specifier from "%-40sXXX"
4035 to "%-39s XXX". The latter will always guarantee a space after the
4036 field while the former will cause them to run together if the field
4037 is 40 of more characters long.
4040 *) Constify the cipher and digest 'method' functions and structures
4041 and modify related functions to take constant EVP_MD and EVP_CIPHER
4045 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4046 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4049 *) Modify EVP_Digest*() routines so they now return values. Although the
4050 internal software routines can never fail additional hardware versions
4054 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4056 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4057 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4060 ERR_R_NESTED_ASN1_ERROR
4062 ERR_R_MISSING_ASN1_EOS
4063 were 4 .. 9, conflicting with
4064 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4066 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4067 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4069 Add new error code 'ERR_R_INTERNAL_ERROR'.
4072 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4076 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4077 sets the subject name for a new request or supersedes the
4078 subject name in a given request. Formats that can be parsed are
4079 'CN=Some Name, OU=myOU, C=IT'
4081 'CN=Some Name/OU=myOU/C=IT'.
4083 Add options '-batch' and '-verbose' to 'openssl req'.
4084 [Massimiliano Pala <madwolf@hackmasters.net>]
4086 *) Introduce the possibility to access global variables through
4087 functions on platform were that's the best way to handle exporting
4088 global variables in shared libraries. To enable this functionality,
4089 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4090 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4091 is normally done by Configure or something similar).
4093 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4094 in the source file (foo.c) like this:
4096 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4097 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4099 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4100 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4102 OPENSSL_DECLARE_GLOBAL(int,foo);
4103 #define foo OPENSSL_GLOBAL_REF(foo)
4104 OPENSSL_DECLARE_GLOBAL(double,bar);
4105 #define bar OPENSSL_GLOBAL_REF(bar)
4107 The #defines are very important, and therefore so is including the
4108 header file everywhere where the defined globals are used.
4110 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4111 of ASN.1 items, but that structure is a bit different.
4113 The largest change is in util/mkdef.pl which has been enhanced with
4114 better and easier to understand logic to choose which symbols should
4115 go into the Windows .def files as well as a number of fixes and code
4116 cleanup (among others, algorithm keywords are now sorted
4117 lexicographically to avoid constant rewrites).
4120 *) In BN_div() keep a copy of the sign of 'num' before writing the
4121 result to 'rm' because if rm==num the value will be overwritten
4122 and produce the wrong result if 'num' is negative: this caused
4123 problems with BN_mod() and BN_nnmod().
4126 *) Function OCSP_request_verify(). This checks the signature on an
4127 OCSP request and verifies the signer certificate. The signer
4128 certificate is just checked for a generic purpose and OCSP request
4132 *) Add OCSP_check_validity() function to check the validity of OCSP
4133 responses. OCSP responses are prepared in real time and may only
4134 be a few seconds old. Simply checking that the current time lies
4135 between thisUpdate and nextUpdate max reject otherwise valid responses
4136 caused by either OCSP responder or client clock inaccuracy. Instead
4137 we allow thisUpdate and nextUpdate to fall within a certain period of
4138 the current time. The age of the response can also optionally be
4139 checked. Two new options -validity_period and -status_age added to
4143 *) If signature or public key algorithm is unrecognized print out its
4144 OID rather that just UNKNOWN.
4147 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4148 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4149 ID to be generated from the issuer certificate alone which can then be
4150 passed to OCSP_id_issuer_cmp().
4153 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4154 ASN1 modules to export functions returning ASN1_ITEM pointers
4155 instead of the ASN1_ITEM structures themselves. This adds several
4156 new macros which allow the underlying ASN1 function/structure to
4157 be accessed transparently. As a result code should not use ASN1_ITEM
4158 references directly (such as &X509_it) but instead use the relevant
4159 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4160 use of the new ASN1 code on platforms where exporting structures
4161 is problematical (for example in shared libraries) but exporting
4162 functions returning pointers to structures is not.
4165 *) Add support for overriding the generation of SSL/TLS session IDs.
4166 These callbacks can be registered either in an SSL_CTX or per SSL.
4167 The purpose of this is to allow applications to control, if they wish,
4168 the arbitrary values chosen for use as session IDs, particularly as it
4169 can be useful for session caching in multiple-server environments. A
4170 command-line switch for testing this (and any client code that wishes
4171 to use such a feature) has been added to "s_server".
4172 [Geoff Thorpe, Lutz Jaenicke]
4174 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4175 of the form '#if defined(...) || defined(...) || ...' and
4176 '#if !defined(...) && !defined(...) && ...'. This also avoids
4177 the growing number of special cases it was previously handling.
4180 *) Make all configuration macros available for application by making
4181 sure they are available in opensslconf.h, by giving them names starting
4182 with "OPENSSL_" to avoid conflicts with other packages and by making
4183 sure e_os2.h will cover all platform-specific cases together with
4185 Additionally, it is now possible to define configuration/platform-
4186 specific names (called "system identities"). In the C code, these
4187 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4188 macro with the name beginning with "OPENSSL_SYS_", which is determined
4189 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4193 *) New option -set_serial to 'req' and 'x509' this allows the serial
4194 number to use to be specified on the command line. Previously self
4195 signed certificates were hard coded with serial number 0 and the
4196 CA options of 'x509' had to use a serial number in a file which was
4200 *) New options to 'ca' utility to support V2 CRL entry extensions.
4201 Currently CRL reason, invalidity date and hold instruction are
4202 supported. Add new CRL extensions to V3 code and some new objects.
4205 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4206 disable standard block padding (aka PKCS#5 padding) in the EVP
4207 API, which was previously mandatory. This means that the data is
4208 not padded in any way and so the total length much be a multiple
4209 of the block size, otherwise an error occurs.
4212 *) Initial (incomplete) OCSP SSL support.
4215 *) New function OCSP_parse_url(). This splits up a URL into its host,
4216 port and path components: primarily to parse OCSP URLs. New -url
4217 option to ocsp utility.
4220 *) New nonce behavior. The return value of OCSP_check_nonce() now
4221 reflects the various checks performed. Applications can decide
4222 whether to tolerate certain situations such as an absent nonce
4223 in a response when one was present in a request: the ocsp application
4224 just prints out a warning. New function OCSP_add1_basic_nonce()
4225 this is to allow responders to include a nonce in a response even if
4226 the request is nonce-less.
4229 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4230 skipped when using openssl x509 multiple times on a single input file,
4231 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4234 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4235 set string type: to handle setting ASN1_TIME structures. Fix ca
4236 utility to correctly initialize revocation date of CRLs.
4239 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4240 the clients preferred ciphersuites and rather use its own preferences.
4241 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4242 Internet Explorer by ensuring unchanged hash method during stepup.
4243 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4246 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4247 to aes and add a new 'exist' option to print out symbols that don't
4251 *) Additional options to ocsp utility to allow flags to be set and
4252 additional certificates supplied.
4255 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4256 OCSP client a number of certificate to only verify the response
4260 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4261 handle the new API. Currently only ECB, CBC modes supported. Add new
4264 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4265 Encryption Standard (AES) Ciphersuites for Transport Layer
4266 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4267 not enabled by default and were not part of the "ALL" ciphersuite
4268 alias because they were not yet official; they could be
4269 explicitly requested by specifying the "AESdraft" ciphersuite
4270 group alias. In the final release of OpenSSL 0.9.7, the group
4271 alias is called "AES" and is part of "ALL".)
4272 [Ben Laurie, Steve Henson, Bodo Moeller]
4274 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4275 request to response.
4278 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4279 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4280 extract information from a certificate request. OCSP_response_create()
4281 creates a response and optionally adds a basic response structure.
4282 OCSP_basic_add1_status() adds a complete single response to a basic
4283 response and returns the OCSP_SINGLERESP structure just added (to allow
4284 extensions to be included for example). OCSP_basic_add1_cert() adds a
4285 certificate to a basic response and OCSP_basic_sign() signs a basic
4286 response with various flags. New helper functions ASN1_TIME_check()
4287 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4288 (converts ASN1_TIME to GeneralizedTime).
4291 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4292 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4293 structure from a certificate. X509_pubkey_digest() digests the public_key
4294 contents: this is used in various key identifiers.
4297 *) Make sk_sort() tolerate a NULL argument.
4298 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4300 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4301 passed by the function are trusted implicitly. If any of them signed the
4302 response then it is assumed to be valid and is not verified.
4305 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4306 to data. This was previously part of the PKCS7 ASN1 code. This
4307 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4308 [Steve Henson, reported by Kenneth R. Robinette
4309 <support@securenetterm.com>]
4311 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4312 routines: without these tracing memory leaks is very painful.
4313 Fix leaks in PKCS12 and PKCS7 routines.
4316 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4317 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4318 effectively meant GeneralizedTime would never be used. Now it
4319 is initialised to -1 but X509_time_adj() now has to check the value
4320 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4321 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4322 [Steve Henson, reported by Kenneth R. Robinette
4323 <support@securenetterm.com>]
4325 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4326 result in a zero length in the ASN1_INTEGER structure which was
4327 not consistent with the structure when d2i_ASN1_INTEGER() was used
4328 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4329 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4330 where it did not print out a minus for negative ASN1_INTEGER.
4333 *) Add summary printout to ocsp utility. The various functions which
4334 convert status values to strings have been renamed to:
4335 OCSP_response_status_str(), OCSP_cert_status_str() and
4336 OCSP_crl_reason_str() and are no longer static. New options
4337 to verify nonce values and to disable verification. OCSP response
4338 printout format cleaned up.
4341 *) Add additional OCSP certificate checks. These are those specified
4342 in RFC2560. This consists of two separate checks: the CA of the
4343 certificate being checked must either be the OCSP signer certificate
4344 or the issuer of the OCSP signer certificate. In the latter case the
4345 OCSP signer certificate must contain the OCSP signing extended key
4346 usage. This check is performed by attempting to match the OCSP
4347 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4348 in the OCSP_CERTID structures of the response.
4351 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4352 and related routines. This uses the standard OpenSSL certificate
4353 verify routines to perform initial checks (just CA validity) and
4354 to obtain the certificate chain. Then additional checks will be
4355 performed on the chain. Currently the root CA is checked to see
4356 if it is explicitly trusted for OCSP signing. This is used to set
4357 a root CA as a global signing root: that is any certificate that
4358 chains to that CA is an acceptable OCSP signing certificate.
4361 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4362 extensions from a separate configuration file.
4363 As when reading extensions from the main configuration file,
4364 the '-extensions ...' option may be used for specifying the
4366 [Massimiliano Pala <madwolf@comune.modena.it>]
4368 *) New OCSP utility. Allows OCSP requests to be generated or
4369 read. The request can be sent to a responder and the output
4370 parsed, outputed or printed in text form. Not complete yet:
4371 still needs to check the OCSP response validity.
4374 *) New subcommands for 'openssl ca':
4375 'openssl ca -status <serial>' prints the status of the cert with
4376 the given serial number (according to the index file).
4377 'openssl ca -updatedb' updates the expiry status of certificates
4379 [Massimiliano Pala <madwolf@comune.modena.it>]
4381 *) New '-newreq-nodes' command option to CA.pl. This is like
4382 '-newreq', but calls 'openssl req' with the '-nodes' option
4383 so that the resulting key is not encrypted.
4384 [Damien Miller <djm@mindrot.org>]
4386 *) New configuration for the GNU Hurd.
4387 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4389 *) Initial code to implement OCSP basic response verify. This
4390 is currently incomplete. Currently just finds the signer's
4391 certificate and verifies the signature on the response.
4394 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4395 value of OPENSSLDIR. This is available via the new '-d' option
4396 to 'openssl version', and is also included in 'openssl version -a'.
4399 *) Allowing defining memory allocation callbacks that will be given
4400 file name and line number information in additional arguments
4401 (a const char* and an int). The basic functionality remains, as
4402 well as the original possibility to just replace malloc(),
4403 realloc() and free() by functions that do not know about these
4404 additional arguments. To register and find out the current
4405 settings for extended allocation functions, the following
4406 functions are provided:
4408 CRYPTO_set_mem_ex_functions
4409 CRYPTO_set_locked_mem_ex_functions
4410 CRYPTO_get_mem_ex_functions
4411 CRYPTO_get_locked_mem_ex_functions
4413 These work the same way as CRYPTO_set_mem_functions and friends.
4414 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4415 extended allocation function is enabled.
4416 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4417 a conventional allocation function is enabled.
4418 [Richard Levitte, Bodo Moeller]
4420 *) Finish off removing the remaining LHASH function pointer casts.
4421 There should no longer be any prototype-casting required when using
4422 the LHASH abstraction, and any casts that remain are "bugs". See
4423 the callback types and macros at the head of lhash.h for details
4424 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4427 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4428 If /dev/[u]random devices are not available or do not return enough
4429 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4431 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4432 /etc/entropy will be queried once each in this sequence, quering stops
4433 when enough entropy was collected without querying more sockets.
4436 *) Change the Unix RAND_poll() variant to be able to poll several
4437 random devices, as specified by DEVRANDOM, until a sufficient amount
4438 of data has been collected. We spend at most 10 ms on each file
4439 (select timeout) and read in non-blocking mode. DEVRANDOM now
4440 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4441 (previously it was just the string "/dev/urandom"), so on typical
4442 platforms the 10 ms delay will never occur.
4443 Also separate out the Unix variant to its own file, rand_unix.c.
4444 For VMS, there's a currently-empty rand_vms.c.
4447 *) Move OCSP client related routines to ocsp_cl.c. These
4448 provide utility functions which an application needing
4449 to issue a request to an OCSP responder and analyse the
4450 response will typically need: as opposed to those which an
4451 OCSP responder itself would need which will be added later.
4453 OCSP_request_sign() signs an OCSP request with an API similar
4454 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4455 response. OCSP_response_get1_basic() extracts basic response
4456 from response. OCSP_resp_find_status(): finds and extracts status
4457 information from an OCSP_CERTID structure (which will be created
4458 when the request structure is built). These are built from lower
4459 level functions which work on OCSP_SINGLERESP structures but
4460 wont normally be used unless the application wishes to examine
4461 extensions in the OCSP response for example.
4463 Replace nonce routines with a pair of functions.
4464 OCSP_request_add1_nonce() adds a nonce value and optionally
4465 generates a random value. OCSP_check_nonce() checks the
4466 validity of the nonce in an OCSP response.
4469 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4470 This doesn't copy the supplied OCSP_CERTID and avoids the
4471 need to free up the newly created id. Change return type
4472 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4473 This can then be used to add extensions to the request.
4474 Deleted OCSP_request_new(), since most of its functionality
4475 is now in OCSP_REQUEST_new() (and the case insensitive name
4476 clash) apart from the ability to set the request name which
4477 will be added elsewhere.
4480 *) Update OCSP API. Remove obsolete extensions argument from
4481 various functions. Extensions are now handled using the new
4482 OCSP extension code. New simple OCSP HTTP function which
4483 can be used to send requests and parse the response.
4486 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4487 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4488 uses the special reorder version of SET OF to sort the attributes
4489 and reorder them to match the encoded order. This resolves a long
4490 standing problem: a verify on a PKCS7 structure just after signing
4491 it used to fail because the attribute order did not match the
4492 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4493 it uses the received order. This is necessary to tolerate some broken
4494 software that does not order SET OF. This is handled by encoding
4495 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4496 to produce the required SET OF.
4499 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4500 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4501 files to get correct declarations of the ASN.1 item variables.
4504 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4505 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4506 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4507 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4508 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4509 ASN1_ITEM and no wrapper functions.
4512 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4513 replace the old function pointer based I/O routines. Change most of
4514 the *_d2i_bio() and *_d2i_fp() functions to use these.
4517 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4518 lines, recognice more "algorithms" that can be deselected, and make
4519 it complain about algorithm deselection that isn't recognised.
4522 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4523 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4524 to use new functions. Add NO_ASN1_OLD which can be set to remove
4525 some old style ASN1 functions: this can be used to determine if old
4526 code will still work when these eventually go away.
4529 *) New extension functions for OCSP structures, these follow the
4530 same conventions as certificates and CRLs.
4533 *) New function X509V3_add1_i2d(). This automatically encodes and
4534 adds an extension. Its behaviour can be customised with various
4535 flags to append, replace or delete. Various wrappers added for
4536 certifcates and CRLs.
4539 *) Fix to avoid calling the underlying ASN1 print routine when
4540 an extension cannot be parsed. Correct a typo in the
4541 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4544 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4545 entries for variables.
4548 *) Add functionality to apps/openssl.c for detecting locking
4549 problems: As the program is single-threaded, all we have
4550 to do is register a locking callback using an array for
4551 storing which locks are currently held by the program.
4554 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4555 SSL_get_ex_data_X509_STORE_idx(), which is used in
4556 ssl_verify_cert_chain() and thus can be called at any time
4557 during TLS/SSL handshakes so that thread-safety is essential.
4558 Unfortunately, the ex_data design is not at all suited
4559 for multi-threaded use, so it probably should be abolished.
4562 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4563 [Broadcom, tweaked and integrated by Geoff Thorpe]
4565 *) Move common extension printing code to new function
4566 X509V3_print_extensions(). Reorganise OCSP print routines and
4567 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4570 *) New function X509_signature_print() to remove duplication in some
4574 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4575 set (this was treated exactly the same as SET OF previously). This
4576 is used to reorder the STACK representing the structure to match the
4577 encoding. This will be used to get round a problem where a PKCS7
4578 structure which was signed could not be verified because the STACK
4579 order did not reflect the encoded order.
4582 *) Reimplement the OCSP ASN1 module using the new code.
4585 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4586 for its ASN1 operations. The old style function pointers still exist
4587 for now but they will eventually go away.
4590 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4591 completely replaces the old ASN1 functionality with a table driven
4592 encoder and decoder which interprets an ASN1_ITEM structure describing
4593 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4594 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4595 has also been converted to the new form.
4598 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4599 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4600 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4601 for negative moduli.
4604 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4605 of not touching the result's sign bit.
4608 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4612 *) Changed the LHASH code to use prototypes for callbacks, and created
4613 macros to declare and implement thin (optionally static) functions
4614 that provide type-safety and avoid function pointer casting for the
4615 type-specific callbacks.
4618 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4620 [Veers Staats <staatsvr@asc.hpc.mil>,
4621 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4623 *) Reformat the FAQ so the different questions and answers can be divided
4624 in sections depending on the subject.
4627 *) Have the zlib compression code load ZLIB.DLL dynamically under
4631 *) New function BN_mod_sqrt for computing square roots modulo a prime
4632 (using the probabilistic Tonelli-Shanks algorithm unless
4633 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4634 be handled deterministically).
4635 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4637 *) Make BN_mod_inverse faster by explicitly handling small quotients
4638 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4639 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4642 *) New function BN_kronecker.
4645 *) Fix BN_gcd so that it works on negative inputs; the result is
4646 positive unless both parameters are zero.
4647 Previously something reasonably close to an infinite loop was
4648 possible because numbers could be growing instead of shrinking
4649 in the implementation of Euclid's algorithm.
4652 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4653 sign of the number in question.
4655 Fix BN_is_word(a,w) to work correctly for w == 0.
4657 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4658 because its test if the absolute value of 'a' equals 'w'.
4659 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4660 it exists mostly for use in the implementations of BN_is_zero(),
4661 BN_is_one(), and BN_is_word().
4664 *) New function BN_swap.
4667 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4668 the exponentiation functions are more likely to produce reasonable
4669 results on negative inputs.
4672 *) Change BN_mod_mul so that the result is always non-negative.
4673 Previously, it could be negative if one of the factors was negative;
4674 I don't think anyone really wanted that behaviour.
4677 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4678 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4679 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4680 and add new functions:
4689 BN_mod_lshift1_quick
4693 These functions always generate non-negative results.
4695 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4696 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4698 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4699 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4700 be reduced modulo m.
4701 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4704 The following entry accidentily appeared in the CHANGES file
4705 distributed with OpenSSL 0.9.7. The modifications described in
4706 it do *not* apply to OpenSSL 0.9.7.
4708 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4709 was actually never needed) and in BN_mul(). The removal in BN_mul()
4710 required a small change in bn_mul_part_recursive() and the addition
4711 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4712 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4713 bn_sub_words() and bn_add_words() except they take arrays with
4718 *) In 'openssl passwd', verify passwords read from the terminal
4719 unless the '-salt' option is used (which usually means that
4720 verification would just waste user's time since the resulting
4721 hash is going to be compared with some given password hash)
4722 or the new '-noverify' option is used.
4724 This is an incompatible change, but it does not affect
4725 non-interactive use of 'openssl passwd' (passwords on the command
4726 line, '-stdin' option, '-in ...' option) and thus should not
4730 *) Remove all references to RSAref, since there's no more need for it.
4733 *) Make DSO load along a path given through an environment variable
4734 (SHLIB_PATH) with shl_load().
4737 *) Constify the ENGINE code as a result of BIGNUM constification.
4738 Also constify the RSA code and most things related to it. In a
4739 few places, most notable in the depth of the ASN.1 code, ugly
4740 casts back to non-const were required (to be solved at a later
4744 *) Make it so the openssl application has all engines loaded by default.
4747 *) Constify the BIGNUM routines a little more.
4750 *) Add the following functions:
4752 ENGINE_load_cswift()
4754 ENGINE_load_atalla()
4756 ENGINE_load_builtin_engines()
4758 That way, an application can itself choose if external engines that
4759 are built-in in OpenSSL shall ever be used or not. The benefit is
4760 that applications won't have to be linked with libdl or other dso
4761 libraries unless it's really needed.
4763 Changed 'openssl engine' to load all engines on demand.
4764 Changed the engine header files to avoid the duplication of some
4765 declarations (they differed!).
4768 *) 'openssl engine' can now list capabilities.
4771 *) Better error reporting in 'openssl engine'.
4774 *) Never call load_dh_param(NULL) in s_server.
4777 *) Add engine application. It can currently list engines by name and
4778 identity, and test if they are actually available.
4781 *) Improve RPM specification file by forcing symbolic linking and making
4782 sure the installed documentation is also owned by root.root.
4783 [Damien Miller <djm@mindrot.org>]
4785 *) Give the OpenSSL applications more possibilities to make use of
4786 keys (public as well as private) handled by engines.
4789 *) Add OCSP code that comes from CertCo.
4792 *) Add VMS support for the Rijndael code.
4795 *) Added untested support for Nuron crypto accelerator.
4798 *) Add support for external cryptographic devices. This code was
4799 previously distributed separately as the "engine" branch.
4800 [Geoff Thorpe, Richard Levitte]
4802 *) Rework the filename-translation in the DSO code. It is now possible to
4803 have far greater control over how a "name" is turned into a filename
4804 depending on the operating environment and any oddities about the
4805 different shared library filenames on each system.
4808 *) Support threads on FreeBSD-elf in Configure.
4811 *) Fix for SHA1 assembly problem with MASM: it produces
4812 warnings about corrupt line number information when assembling
4813 with debugging information. This is caused by the overlapping
4815 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4818 NCONF_get_number() has no error checking at all. As a replacement,
4819 NCONF_get_number_e() is defined (_e for "error checking") and is
4820 promoted strongly. The old NCONF_get_number is kept around for
4821 binary backward compatibility.
4822 Make it possible for methods to load from something other than a BIO,
4823 by providing a function pointer that is given a name instead of a BIO.
4824 For example, this could be used to load configuration data from an
4828 *) Fix for non blocking accept BIOs. Added new I/O special reason
4829 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4830 with non blocking I/O was not possible because no retry code was
4831 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4835 *) Added the beginnings of Rijndael support.
4838 *) Fix for bug in DirectoryString mask setting. Add support for
4839 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4840 to allow certificate printing to more controllable, additional
4841 'certopt' option to 'x509' to allow new printing options to be
4845 *) Clean old EAY MD5 hack from e_os.h.
4848 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4850 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4851 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4852 [Joe Orton, Steve Henson]
4854 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4856 *) Fix additional bug revealed by the NISCC test suite:
4858 Stop bug triggering large recursion when presented with
4859 certain ASN.1 tags (CVE-2003-0851)
4862 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4864 *) Fix various bugs revealed by running the NISCC test suite:
4866 Stop out of bounds reads in the ASN1 code when presented with
4867 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4869 If verify callback ignores invalid public key errors don't try to check
4870 certificate signature with the NULL public key.
4874 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4875 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4879 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4880 extra data after the compression methods not only for TLS 1.0
4881 but also for SSL 3.0 (as required by the specification).
4882 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4884 *) Change X509_certificate_type() to mark the key as exported/exportable
4885 when it's 512 *bits* long, not 512 bytes.
4888 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4890 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4891 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4892 a protocol version number mismatch like a decryption error
4893 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4896 *) Turn on RSA blinding by default in the default implementation
4897 to avoid a timing attack. Applications that don't want it can call
4898 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4899 They would be ill-advised to do so in most cases.
4900 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4902 *) Change RSA blinding code so that it works when the PRNG is not
4903 seeded (in this case, the secret RSA exponent is abused as
4904 an unpredictable seed -- if it is not unpredictable, there
4905 is no point in blinding anyway). Make RSA blinding thread-safe
4906 by remembering the creator's thread ID in rsa->blinding and
4907 having all other threads use local one-time blinding factors
4908 (this requires more computation than sharing rsa->blinding, but
4909 avoids excessive locking; and if an RSA object is not shared
4910 between threads, blinding will still be very fast).
4913 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4915 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4916 via timing by performing a MAC computation even if incorrrect
4917 block cipher padding has been found. This is a countermeasure
4918 against active attacks where the attacker has to distinguish
4919 between bad padding and a MAC verification error. (CVE-2003-0078)
4921 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4922 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4923 Martin Vuagnoux (EPFL, Ilion)]
4925 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4927 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4928 memory from it's contents. This is done with a counter that will
4929 place alternating values in each byte. This can be used to solve
4930 two issues: 1) the removal of calls to memset() by highly optimizing
4931 compilers, and 2) cleansing with other values than 0, since those can
4932 be read through on certain media, for example a swap space on disk.
4935 *) Bugfix: client side session caching did not work with external caching,
4936 because the session->cipher setting was not restored when reloading
4937 from the external cache. This problem was masked, when
4938 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4939 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4942 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4943 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4944 [Zeev Lieber <zeev-l@yahoo.com>]
4946 *) Undo an undocumented change introduced in 0.9.6e which caused
4947 repeated calls to OpenSSL_add_all_ciphers() and
4948 OpenSSL_add_all_digests() to be ignored, even after calling
4952 *) Change the default configuration reader to deal with last line not
4953 being properly terminated.
4956 *) Change X509_NAME_cmp() so it applies the special rules on handling
4957 DN values that are of type PrintableString, as well as RDNs of type
4958 emailAddress where the value has the type ia5String.
4959 [stefank@valicert.com via Richard Levitte]
4961 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4962 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4963 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4964 the bitwise-OR of the two for use by the majority of applications
4965 wanting this behaviour, and update the docs. The documented
4966 behaviour and actual behaviour were inconsistent and had been
4967 changing anyway, so this is more a bug-fix than a behavioural
4969 [Geoff Thorpe, diagnosed by Nadav Har'El]
4971 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4972 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4975 *) Fix initialization code race conditions in
4976 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4977 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4978 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4979 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4980 ssl2_get_cipher_by_char(),
4981 ssl3_get_cipher_by_char().
4982 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4984 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4985 the cached sessions are flushed, as the remove_cb() might use ex_data
4986 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4987 (see [openssl.org #212]).
4988 [Geoff Thorpe, Lutz Jaenicke]
4990 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4991 length, instead of the encoding length to d2i_ASN1_OBJECT.
4994 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4996 *) [In 0.9.6g-engine release:]
4997 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4998 [Lynn Gazis <lgazis@rainbow.com>]
5000 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5002 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5003 and get fix the header length calculation.
5004 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5005 Alon Kantor <alonk@checkpoint.com> (and others),
5008 *) Use proper error handling instead of 'assertions' in buffer
5009 overflow checks added in 0.9.6e. This prevents DoS (the
5010 assertions could call abort()).
5011 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5013 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5015 *) Add various sanity checks to asn1_get_length() to reject
5016 the ASN1 length bytes if they exceed sizeof(long), will appear
5017 negative or the content length exceeds the length of the
5019 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5021 *) Fix cipher selection routines: ciphers without encryption had no flags
5022 for the cipher strength set and where therefore not handled correctly
5023 by the selection routines (PR #130).
5026 *) Fix EVP_dsa_sha macro.
5030 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5031 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5032 that was added in OpenSSL 0.9.6d.
5034 As the countermeasure turned out to be incompatible with some
5035 broken SSL implementations, the new option is part of SSL_OP_ALL.
5036 SSL_OP_ALL is usually employed when compatibility with weird SSL
5037 implementations is desired (e.g. '-bugs' option to 's_client' and
5038 's_server'), so the new option is automatically set in many
5042 *) Changes in security patch:
5044 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5045 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5046 Air Force Materiel Command, USAF, under agreement number
5049 *) Add various sanity checks to asn1_get_length() to reject
5050 the ASN1 length bytes if they exceed sizeof(long), will appear
5051 negative or the content length exceeds the length of the
5052 supplied buffer. (CVE-2002-0659)
5053 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5055 *) Assertions for various potential buffer overflows, not known to
5057 [Ben Laurie (CHATS)]
5059 *) Various temporary buffers to hold ASCII versions of integers were
5060 too small for 64 bit platforms. (CVE-2002-0655)
5061 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5063 *) Remote buffer overflow in SSL3 protocol - an attacker could
5064 supply an oversized session ID to a client. (CVE-2002-0656)
5065 [Ben Laurie (CHATS)]
5067 *) Remote buffer overflow in SSL2 protocol - an attacker could
5068 supply an oversized client master key. (CVE-2002-0656)
5069 [Ben Laurie (CHATS)]
5071 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5073 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5074 encoded as NULL) with id-dsa-with-sha1.
5075 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5077 *) Check various X509_...() return values in apps/req.c.
5078 [Nils Larsch <nla@trustcenter.de>]
5080 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5081 an end-of-file condition would erronously be flagged, when the CRLF
5082 was just at the end of a processed block. The bug was discovered when
5083 processing data through a buffering memory BIO handing the data to a
5084 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5085 <ptsekov@syntrex.com> and Nedelcho Stanev.
5088 *) Implement a countermeasure against a vulnerability recently found
5089 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5090 before application data chunks to avoid the use of known IVs
5091 with data potentially chosen by the attacker.
5094 *) Fix length checks in ssl3_get_client_hello().
5097 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5098 to prevent ssl3_read_internal() from incorrectly assuming that
5099 ssl3_read_bytes() found application data while handshake
5100 processing was enabled when in fact s->s3->in_read_app_data was
5101 merely automatically cleared during the initial handshake.
5102 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5104 *) Fix object definitions for Private and Enterprise: they were not
5105 recognized in their shortname (=lowercase) representation. Extend
5106 obj_dat.pl to issue an error when using undefined keywords instead
5107 of silently ignoring the problem (Svenning Sorensen
5108 <sss@sss.dnsalias.net>).
5111 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5112 generators, i.e. generators other than 2 and 5. (Previously, the
5113 code did not properly initialise the 'add' and 'rem' values to
5114 BN_generate_prime().)
5116 In the new general case, we do not insist that 'generator' is
5117 actually a primitive root: This requirement is rather pointless;
5118 a generator of the order-q subgroup is just as good, if not
5122 *) Map new X509 verification errors to alerts. Discovered and submitted by
5123 Tom Wu <tom@arcot.com>.
5126 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5127 returning non-zero before the data has been completely received
5128 when using non-blocking I/O.
5129 [Bodo Moeller; problem pointed out by John Hughes]
5131 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5132 [Ben Laurie, Lutz Jaenicke]
5134 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5135 Yoram Zahavi <YoramZ@gilian.com>).
5138 *) Add information about CygWin 1.3 and on, and preserve proper
5139 configuration for the versions before that.
5140 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5142 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5143 check whether we deal with a copy of a session and do not delete from
5144 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5145 <izhar@checkpoint.com>.
5148 *) Do not store session data into the internal session cache, if it
5149 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5150 flag is set). Proposed by Aslam <aslam@funk.com>.
5153 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5157 *) [In 0.9.6d-engine release:]
5158 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5159 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5161 *) Add the configuration target linux-s390x.
5162 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5164 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5165 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5166 variable as an indication that a ClientHello message has been
5167 received. As the flag value will be lost between multiple
5168 invocations of ssl3_accept when using non-blocking I/O, the
5169 function may not be aware that a handshake has actually taken
5170 place, thus preventing a new session from being added to the
5173 To avoid this problem, we now set s->new_session to 2 instead of
5174 using a local variable.
5175 [Lutz Jaenicke, Bodo Moeller]
5177 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5178 if the SSL_R_LENGTH_MISMATCH error is detected.
5179 [Geoff Thorpe, Bodo Moeller]
5181 *) New 'shared_ldflag' column in Configure platform table.
5184 *) Fix EVP_CIPHER_mode macro.
5185 ["Dan S. Camper" <dan@bti.net>]
5187 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5188 type, we must throw them away by setting rr->length to 0.
5189 [D P Chang <dpc@qualys.com>]
5191 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5193 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5194 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5195 worked incorrectly for those cases where range = 10..._2 and
5196 3*range is two bits longer than range.)
5199 *) Only add signing time to PKCS7 structures if it is not already
5203 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5204 OBJ_ld_ce should be OBJ_id_ce.
5205 Also some ip-pda OIDs in crypto/objects/objects.txt were
5206 incorrect (cf. RFC 3039).
5207 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5209 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5210 returns early because it has nothing to do.
5211 [Andy Schneider <andy.schneider@bjss.co.uk>]
5213 *) [In 0.9.6c-engine release:]
5214 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5215 [Andy Schneider <andy.schneider@bjss.co.uk>]
5217 *) [In 0.9.6c-engine release:]
5218 Add support for Cryptographic Appliance's keyserver technology.
5219 (Use engine 'keyclient')
5220 [Cryptographic Appliances and Geoff Thorpe]
5222 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5223 is called via tools/c89.sh because arguments have to be
5224 rearranged (all '-L' options must appear before the first object
5226 [Richard Shapiro <rshapiro@abinitio.com>]
5228 *) [In 0.9.6c-engine release:]
5229 Add support for Broadcom crypto accelerator cards, backported
5231 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5233 *) [In 0.9.6c-engine release:]
5234 Add support for SureWare crypto accelerator cards from
5235 Baltimore Technologies. (Use engine 'sureware')
5236 [Baltimore Technologies and Mark Cox]
5238 *) [In 0.9.6c-engine release:]
5239 Add support for crypto accelerator cards from Accelerated
5240 Encryption Processing, www.aep.ie. (Use engine 'aep')
5241 [AEP Inc. and Mark Cox]
5243 *) Add a configuration entry for gcc on UnixWare.
5244 [Gary Benson <gbenson@redhat.com>]
5246 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5247 messages are stored in a single piece (fixed-length part and
5248 variable-length part combined) and fix various bugs found on the way.
5251 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5252 instead. BIO_gethostbyname() does not know what timeouts are
5253 appropriate, so entries would stay in cache even when they have
5255 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5257 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5258 faced with a pathologically small ClientHello fragment that does
5259 not contain client_version: Instead of aborting with an error,
5260 simply choose the highest available protocol version (i.e.,
5261 TLS 1.0 unless it is disabled). In practice, ClientHello
5262 messages are never sent like this, but this change gives us
5263 strictly correct behaviour at least for TLS.
5266 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5267 never resets s->method to s->ctx->method when called from within
5268 one of the SSL handshake functions.
5269 [Bodo Moeller; problem pointed out by Niko Baric]
5271 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5272 (sent using the client's version number) if client_version is
5273 smaller than the protocol version in use. Also change
5274 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5275 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5276 the client will at least see that alert.
5279 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5283 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5284 client receives HelloRequest while in a handshake.
5285 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5287 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5288 should end in 'break', not 'goto end' which circuments various
5289 cleanups done in state SSL_ST_OK. But session related stuff
5290 must be disabled for SSL_ST_OK in the case that we just sent a
5293 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5294 before just sending a HelloRequest.
5295 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5297 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5298 reveal whether illegal block cipher padding was found or a MAC
5299 verification error occured. (Neither SSLerr() codes nor alerts
5300 are directly visible to potential attackers, but the information
5301 may leak via logfiles.)
5303 Similar changes are not required for the SSL 2.0 implementation
5304 because the number of padding bytes is sent in clear for SSL 2.0,
5305 and the extra bytes are just ignored. However ssl/s2_pkt.c
5306 failed to verify that the purported number of padding bytes is in
5310 *) Add OpenUNIX-8 support including shared libraries
5311 (Boyd Lynn Gerber <gerberb@zenez.com>).
5314 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5315 'wristwatch attack' using huge encoding parameters (cf.
5316 James H. Manger's CRYPTO 2001 paper). Note that the
5317 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5318 encoding parameters and hence was not vulnerable.
5321 *) BN_sqr() bug fix.
5322 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5324 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5325 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5326 followed by modular reduction.
5327 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5329 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5330 equivalent based on BN_pseudo_rand() instead of BN_rand().
5333 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5334 This function was broken, as the check for a new client hello message
5335 to handle SGC did not allow these large messages.
5336 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5339 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5342 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5343 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5346 *) Rework the configuration and shared library support for Tru64 Unix.
5347 The configuration part makes use of modern compiler features and
5348 still retains old compiler behavior for those that run older versions
5349 of the OS. The shared library support part includes a variant that
5350 uses the RPATH feature, and is available through the special
5351 configuration target "alpha-cc-rpath", which will never be selected
5353 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5355 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5356 with the same message size as in ssl3_get_certificate_request().
5357 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5358 messages might inadvertently be reject as too long.
5359 [Petr Lampa <lampa@fee.vutbr.cz>]
5361 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5364 *) Modified SSL library such that the verify_callback that has been set
5365 specificly for an SSL object with SSL_set_verify() is actually being
5366 used. Before the change, a verify_callback set with this function was
5367 ignored and the verify_callback() set in the SSL_CTX at the time of
5368 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5369 to allow the necessary settings.
5372 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5373 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5374 done automatically (in contradiction to the requirements of the C
5375 standard). This made problems when used from OpenSSH.
5378 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5379 dh->length and always used
5381 BN_rand_range(priv_key, dh->p).
5383 BN_rand_range() is not necessary for Diffie-Hellman, and this
5384 specific range makes Diffie-Hellman unnecessarily inefficient if
5385 dh->length (recommended exponent length) is much smaller than the
5386 length of dh->p. We could use BN_rand_range() if the order of
5387 the subgroup was stored in the DH structure, but we only have
5392 BN_rand(priv_key, l, ...)
5394 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5400 RSA_eay_public_encrypt
5401 RSA_eay_private_decrypt
5402 RSA_eay_private_encrypt (signing)
5403 RSA_eay_public_decrypt (signature verification)
5405 (default implementations for RSA_public_encrypt,
5406 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5407 always reject numbers >= n.
5410 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5411 to synchronize access to 'locking_thread'. This is necessary on
5412 systems where access to 'locking_thread' (an 'unsigned long'
5413 variable) is not atomic.
5416 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5417 *before* setting the 'crypto_lock_rand' flag. The previous code had
5418 a race condition if 0 is a valid thread ID.
5419 [Travis Vitek <vitek@roguewave.com>]
5421 *) Add support for shared libraries under Irix.
5422 [Albert Chin-A-Young <china@thewrittenword.com>]
5424 *) Add configuration option to build on Linux on both big-endian and
5426 [Ralf Baechle <ralf@uni-koblenz.de>]
5428 *) Add the possibility to create shared libraries on HP-UX.
5431 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5433 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5434 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5435 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5436 PRNG state recovery was possible based on the output of
5437 one PRNG request appropriately sized to gain knowledge on
5438 'md' followed by enough consecutive 1-byte PRNG requests
5439 to traverse all of 'state'.
5441 1. When updating 'md_local' (the current thread's copy of 'md')
5442 during PRNG output generation, hash all of the previous
5443 'md_local' value, not just the half used for PRNG output.
5445 2. Make the number of bytes from 'state' included into the hash
5446 independent from the number of PRNG bytes requested.
5448 The first measure alone would be sufficient to avoid
5449 Markku-Juhani's attack. (Actually it had never occurred
5450 to me that the half of 'md_local' used for chaining was the
5451 half from which PRNG output bytes were taken -- I had always
5452 assumed that the secret half would be used.) The second
5453 measure makes sure that additional data from 'state' is never
5454 mixed into 'md_local' in small portions; this heuristically
5455 further strengthens the PRNG.
5458 *) Fix crypto/bn/asm/mips3.s.
5461 *) When only the key is given to "enc", the IV is undefined. Print out
5462 an error message in this case.
5465 *) Handle special case when X509_NAME is empty in X509 printing routines.
5468 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5469 positive and less than q.
5472 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5473 used: it isn't thread safe and the add_lock_callback should handle
5475 [Paul Rose <Paul.Rose@bridge.com>]
5477 *) Verify that incoming data obeys the block size in
5478 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5482 [Ulf Möller, Bodo Möller]
5484 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5485 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5486 when fixing the server behaviour for backwards-compatible 'client
5487 hello' messages. (Note that the attack is impractical against
5488 SSL 3.0 and TLS 1.0 anyway because length and version checking
5489 means that the probability of guessing a valid ciphertext is
5490 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5493 Before 0.9.5, the countermeasure (hide the error by generating a
5494 random 'decryption result') did not work properly because
5495 ERR_clear_error() was missing, meaning that SSL_get_error() would
5496 detect the supposedly ignored error.
5498 Both problems are now fixed.
5501 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5502 (previously it was 1024).
5505 *) Fix for compatibility mode trust settings: ignore trust settings
5506 unless some valid trust or reject settings are present.
5509 *) Fix for blowfish EVP: its a variable length cipher.
5512 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5513 parameters in DSA public key structures and return an error in the
5514 DSA routines if parameters are absent.
5517 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5518 in the current directory if neither $RANDFILE nor $HOME was set.
5519 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5520 caused some confusion to Windows users who haven't defined $HOME.
5521 Thus RAND_file_name() is changed again: e_os.h can define a
5522 DEFAULT_HOME, which will be used if $HOME is not set.
5523 For Windows, we use "C:"; on other platforms, we still require
5524 environment variables.
5526 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5527 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5528 having multiple threads call RAND_poll() concurrently.
5531 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5532 combination of a flag and a thread ID variable.
5533 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5534 flag), *other* threads can enter ssleay_add_bytes without obeying
5535 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5536 that they do not hold after the first thread unsets add_do_not_lock).
5539 *) Change bctest again: '-x' expressions are not available in all
5543 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5545 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5546 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5548 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5549 the default extension for executables, if any. Also, make the perl
5550 scripts that use symlink() to test if it really exists and use "cp"
5551 if it doesn't. All this made OpenSSL compilable and installable in
5555 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5556 If SEQUENCE is length is indefinite just set c->slen to the total
5557 amount of data available.
5558 [Steve Henson, reported by shige@FreeBSD.org]
5559 [This change does not apply to 0.9.7.]
5561 *) Change bctest to avoid here-documents inside command substitution
5562 (workaround for FreeBSD /bin/sh bug).
5563 For compatibility with Ultrix, avoid shell functions (introduced
5564 in the bctest version that searches along $PATH).
5567 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5568 with des_encrypt() defined on some operating systems, like Solaris
5572 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5573 On the Importance of Eliminating Errors in Cryptographic
5574 Computations, J. Cryptology 14 (2001) 2, 101-119,
5575 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5578 *) MIPS assembler BIGNUM division bug fix.
5581 *) Disabled incorrect Alpha assembler code.
5584 *) Fix PKCS#7 decode routines so they correctly update the length
5585 after reading an EOC for the EXPLICIT tag.
5587 [This change does not apply to 0.9.7.]
5589 *) Fix bug in PKCS#12 key generation routines. This was triggered
5590 if a 3DES key was generated with a 0 initial byte. Include
5591 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5592 (but broken) behaviour.
5595 *) Enhance bctest to search for a working bc along $PATH and print
5597 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5599 *) Fix memory leaks in err.c: free err_data string if necessary;
5600 don't write to the wrong index in ERR_set_error_data.
5603 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5607 *) Replace rdtsc with _emit statements for VC++ version 5.
5608 [Jeremy Cooper <jeremy@baymoo.org>]
5610 *) Make it possible to reuse SSLv2 sessions.
5613 *) In copy_email() check for >= 0 as a return value for
5614 X509_NAME_get_index_by_NID() since 0 is a valid index.
5615 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5617 *) Avoid coredump with unsupported or invalid public keys by checking if
5618 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5619 PKCS7_verify() fails with non detached data.
5622 *) Don't use getenv in library functions when run as setuid/setgid.
5623 New function OPENSSL_issetugid().
5626 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5627 due to incorrect handling of multi-threading:
5629 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5631 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5633 3. Count how many times MemCheck_off() has been called so that
5634 nested use can be treated correctly. This also avoids
5635 inband-signalling in the previous code (which relied on the
5636 assumption that thread ID 0 is impossible).
5639 *) Add "-rand" option also to s_client and s_server.
5642 *) Fix CPU detection on Irix 6.x.
5643 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5644 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5646 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5649 [This change does not apply to 0.9.7.]
5651 *) Use the cached encoding of an X509_NAME structure rather than
5652 copying it. This is apparently the reason for the libsafe "errors"
5653 but the code is actually correct.
5656 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5657 Bleichenbacher's DSA attack.
5658 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5659 to be set and top=0 forces the highest bit to be set; top=-1 is new
5660 and leaves the highest bit random.
5661 [Ulf Moeller, Bodo Moeller]
5663 *) In the NCONF_...-based implementations for CONF_... queries
5664 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5665 a temporary CONF structure with the data component set to NULL
5666 (which gives segmentation faults in lh_retrieve).
5667 Instead, use NULL for the CONF pointer in CONF_get_string and
5668 CONF_get_number (which may use environment variables) and directly
5669 return NULL from CONF_get_section.
5672 *) Fix potential buffer overrun for EBCDIC.
5675 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5676 keyUsage if basicConstraints absent for a CA.
5679 *) Make SMIME_write_PKCS7() write mail header values with a format that
5680 is more generally accepted (no spaces before the semicolon), since
5681 some programs can't parse those values properly otherwise. Also make
5682 sure BIO's that break lines after each write do not create invalid
5686 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5687 macros previously used would not encode an empty SEQUENCE OF
5688 and break the signature.
5690 [This change does not apply to 0.9.7.]
5692 *) Zero the premaster secret after deriving the master secret in
5696 *) Add some EVP_add_digest_alias registrations (as found in
5697 OpenSSL_add_all_digests()) to SSL_library_init()
5698 aka OpenSSL_add_ssl_algorithms(). This provides improved
5699 compatibility with peers using X.509 certificates
5700 with unconventional AlgorithmIdentifier OIDs.
5703 *) Fix for Irix with NO_ASM.
5704 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5706 *) ./config script fixes.
5707 [Ulf Moeller, Richard Levitte]
5709 *) Fix 'openssl passwd -1'.
5712 *) Change PKCS12_key_gen_asc() so it can cope with non null
5713 terminated strings whose length is passed in the passlen
5714 parameter, for example from PEM callbacks. This was done
5715 by adding an extra length parameter to asc2uni().
5716 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5718 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5719 call failed, free the DSA structure.
5722 *) Fix to uni2asc() to cope with zero length Unicode strings.
5723 These are present in some PKCS#12 files.
5726 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5727 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5728 when writing a 32767 byte record.
5729 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5731 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5732 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5734 (RSA objects have a reference count access to which is protected
5735 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5736 so they are meant to be shared between threads.)
5737 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5738 "Reddie, Steven" <Steven.Reddie@ca.com>]
5740 *) Fix a deadlock in CRYPTO_mem_leaks().
5743 *) Use better test patterns in bntest.
5746 *) rand_win.c fix for Borland C.
5749 *) BN_rshift bugfix for n == 0.
5752 *) Add a 'bctest' script that checks for some known 'bc' bugs
5753 so that 'make test' does not abort just because 'bc' is broken.
5756 *) Store verify_result within SSL_SESSION also for client side to
5757 avoid potential security hole. (Re-used sessions on the client side
5758 always resulted in verify_result==X509_V_OK, not using the original
5759 result of the server certificate verification.)
5762 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5763 SSL3_RT_APPLICATION_DATA, return 0.
5764 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5768 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5769 releases, have been re-implemented by renaming the previous
5770 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5771 and ssl3_read_internal, respectively, and adding 'peek' parameters
5772 to them. The new ssl[23]_{read,peek} functions are calls to
5773 ssl[23]_read_internal with the 'peek' flag set appropriately.
5774 A 'peek' parameter has also been added to ssl3_read_bytes, which
5775 does the actual work for ssl3_read_internal.
5778 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5779 the method-specific "init()" handler. Also clean up ex_data after
5780 calling the method-specific "finish()" handler. Previously, this was
5781 happening the other way round.
5784 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5785 The previous value, 12, was not always sufficient for BN_mod_exp().
5788 *) Make sure that shared libraries get the internal name engine with
5789 the full version number and not just 0. This should mark the
5790 shared libraries as not backward compatible. Of course, this should
5791 be changed again when we can guarantee backward binary compatibility.
5794 *) Fix typo in get_cert_by_subject() in by_dir.c
5795 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5797 *) Rework the system to generate shared libraries:
5799 - Make note of the expected extension for the shared libraries and
5800 if there is a need for symbolic links from for example libcrypto.so.0
5801 to libcrypto.so.0.9.7. There is extended info in Configure for
5804 - Make as few rebuilds of the shared libraries as possible.
5806 - Still avoid linking the OpenSSL programs with the shared libraries.
5808 - When installing, install the shared libraries separately from the
5812 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5814 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5815 and not in SSL_clear because the latter is also used by the
5816 accept/connect functions; previously, the settings made by
5817 SSL_set_read_ahead would be lost during the handshake.
5818 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5820 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5821 Previously, it would create entries for disableed algorithms no
5825 *) Added several new manual pages for SSL_* function.
5828 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5830 *) In ssl23_get_client_hello, generate an error message when faced
5831 with an initial SSL 3.0/TLS record that is too small to contain the
5832 first two bytes of the ClientHello message, i.e. client_version.
5833 (Note that this is a pathologic case that probably has never happened
5834 in real life.) The previous approach was to use the version number
5835 from the record header as a substitute; but our protocol choice
5836 should not depend on that one because it is not authenticated
5837 by the Finished messages.
5840 *) More robust randomness gathering functions for Windows.
5841 [Jeffrey Altman <jaltman@columbia.edu>]
5843 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5844 not set then we don't setup the error code for issuer check errors
5845 to avoid possibly overwriting other errors which the callback does
5846 handle. If an application does set the flag then we assume it knows
5847 what it is doing and can handle the new informational codes
5851 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5852 a general "ANY" type, as such it should be able to decode anything
5853 including tagged types. However it didn't check the class so it would
5854 wrongly interpret tagged types in the same way as their universal
5855 counterpart and unknown types were just rejected. Changed so that the
5856 tagged and unknown types are handled in the same way as a SEQUENCE:
5857 that is the encoding is stored intact. There is also a new type
5858 "V_ASN1_OTHER" which is used when the class is not universal, in this
5859 case we have no idea what the actual type is so we just lump them all
5863 *) On VMS, stdout may very well lead to a file that is written to
5864 in a record-oriented fashion. That means that every write() will
5865 write a separate record, which will be read separately by the
5866 programs trying to read from it. This can be very confusing.
5868 The solution is to put a BIO filter in the way that will buffer
5869 text until a linefeed is reached, and then write everything a
5870 line at a time, so every record written will be an actual line,
5871 not chunks of lines and not (usually doesn't happen, but I've
5872 seen it once) several lines in one record. BIO_f_linebuffer() is
5875 Currently, it's a VMS-only method, because that's where it has
5876 been tested well enough.
5879 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5880 it can return incorrect results.
5881 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5882 but it was in 0.9.6-beta[12].)
5885 *) Disable the check for content being present when verifying detached
5886 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5887 include zero length content when signing messages.
5890 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5891 BIO_ctrl (for BIO pairs).
5894 *) Add DSO method for VMS.
5897 *) Bug fix: Montgomery multiplication could produce results with the
5901 *) Add RPM specification openssl.spec and modify it to build three
5902 packages. The default package contains applications, application
5903 documentation and run-time libraries. The devel package contains
5904 include files, static libraries and function documentation. The
5905 doc package contains the contents of the doc directory. The original
5906 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5909 *) Add a large number of documentation files for many SSL routines.
5910 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5912 *) Add a configuration entry for Sony News 4.
5913 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5915 *) Don't set the two most significant bits to one when generating a
5916 random number < q in the DSA library.
5919 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5920 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5921 the underlying transport is blocking) if a handshake took place.
5922 (The default behaviour is needed by applications such as s_client
5923 and s_server that use select() to determine when to use SSL_read;
5924 but for applications that know in advance when to expect data, it
5925 just makes things more complicated.)
5928 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5932 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5933 work better on such systems.
5934 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5936 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5937 Update PKCS12_parse() so it copies the friendlyName and the
5938 keyid to the certificates aux info.
5941 *) Fix bug in PKCS7_verify() which caused an infinite loop
5942 if there was more than one signature.
5943 [Sven Uszpelkat <su@celocom.de>]
5945 *) Major change in util/mkdef.pl to include extra information
5946 about each symbol, as well as presentig variables as well
5947 as functions. This change means that there's n more need
5948 to rebuild the .num files when some algorithms are excluded.
5951 *) Allow the verify time to be set by an application,
5952 rather than always using the current time.
5955 *) Phase 2 verify code reorganisation. The certificate
5956 verify code now looks up an issuer certificate by a
5957 number of criteria: subject name, authority key id
5958 and key usage. It also verifies self signed certificates
5959 by the same criteria. The main comparison function is
5960 X509_check_issued() which performs these checks.
5962 Lot of changes were necessary in order to support this
5963 without completely rewriting the lookup code.
5965 Authority and subject key identifier are now cached.
5967 The LHASH 'certs' is X509_STORE has now been replaced
5968 by a STACK_OF(X509_OBJECT). This is mainly because an
5969 LHASH can't store or retrieve multiple objects with
5970 the same hash value.
5972 As a result various functions (which were all internal
5973 use only) have changed to handle the new X509_STORE
5974 structure. This will break anything that messed round
5975 with X509_STORE internally.
5977 The functions X509_STORE_add_cert() now checks for an
5978 exact match, rather than just subject name.
5980 The X509_STORE API doesn't directly support the retrieval
5981 of multiple certificates matching a given criteria, however
5982 this can be worked round by performing a lookup first
5983 (which will fill the cache with candidate certificates)
5984 and then examining the cache for matches. This is probably
5985 the best we can do without throwing out X509_LOOKUP
5986 entirely (maybe later...).
5988 The X509_VERIFY_CTX structure has been enhanced considerably.
5990 All certificate lookup operations now go via a get_issuer()
5991 callback. Although this currently uses an X509_STORE it
5992 can be replaced by custom lookups. This is a simple way
5993 to bypass the X509_STORE hackery necessary to make this
5994 work and makes it possible to use more efficient techniques
5995 in future. A very simple version which uses a simple
5996 STACK for its trusted certificate store is also provided
5997 using X509_STORE_CTX_trusted_stack().
5999 The verify_cb() and verify() callbacks now have equivalents
6000 in the X509_STORE_CTX structure.
6002 X509_STORE_CTX also has a 'flags' field which can be used
6003 to customise the verify behaviour.
6006 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6007 excludes S/MIME capabilities.
6010 *) When a certificate request is read in keep a copy of the
6011 original encoding of the signed data and use it when outputing
6012 again. Signatures then use the original encoding rather than
6013 a decoded, encoded version which may cause problems if the
6014 request is improperly encoded.
6017 *) For consistency with other BIO_puts implementations, call
6018 buffer_write(b, ...) directly in buffer_puts instead of calling
6021 In BIO_puts, increment b->num_write as in BIO_write.
6022 [Peter.Sylvester@EdelWeb.fr]
6024 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6025 BN_zero, we may not return a BIGNUM with an array consisting of
6029 *) Avoid calling abort() from within the library when problems are
6030 detected, except if preprocessor symbols have been defined
6031 (such as REF_CHECK, BN_DEBUG etc.).
6034 *) New openssl application 'rsautl'. This utility can be
6035 used for low level RSA operations. DER public key
6036 BIO/fp routines also added.
6039 *) New Configure entry and patches for compiling on QNX 4.
6040 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6042 *) A demo state-machine implementation was sponsored by
6043 Nuron (http://www.nuron.com/) and is now available in
6044 demos/state_machine.
6047 *) New options added to the 'dgst' utility for signature
6048 generation and verification.
6051 *) Unrecognized PKCS#7 content types are now handled via a
6052 catch all ASN1_TYPE structure. This allows unsupported
6053 types to be stored as a "blob" and an application can
6054 encode and decode it manually.
6057 *) Fix various signed/unsigned issues to make a_strex.c
6059 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6061 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6062 length if passed a buffer. ASN1_INTEGER_to_BN failed
6063 if passed a NULL BN and its argument was negative.
6064 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6066 *) Modification to PKCS#7 encoding routines to output definite
6067 length encoding. Since currently the whole structures are in
6068 memory there's not real point in using indefinite length
6069 constructed encoding. However if OpenSSL is compiled with
6070 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6073 *) Added BIO_vprintf() and BIO_vsnprintf().
6076 *) Added more prefixes to parse for in the the strings written
6077 through a logging bio, to cover all the levels that are available
6078 through syslog. The prefixes are now:
6080 PANIC, EMERG, EMR => LOG_EMERG
6081 ALERT, ALR => LOG_ALERT
6082 CRIT, CRI => LOG_CRIT
6083 ERROR, ERR => LOG_ERR
6084 WARNING, WARN, WAR => LOG_WARNING
6085 NOTICE, NOTE, NOT => LOG_NOTICE
6086 INFO, INF => LOG_INFO
6087 DEBUG, DBG => LOG_DEBUG
6089 and as before, if none of those prefixes are present at the
6090 beginning of the string, LOG_ERR is chosen.
6092 On Win32, the LOG_* levels are mapped according to this:
6094 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6095 LOG_WARNING => EVENTLOG_WARNING_TYPE
6096 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6100 *) Made it possible to reconfigure with just the configuration
6101 argument "reconf" or "reconfigure". The command line arguments
6102 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6103 and are retrieved from there when reconfiguring.
6107 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6109 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6112 *) The obj_dat.pl script was messing up the sorting of object
6113 names. The reason was that it compared the quoted version
6114 of strings as a result "OCSP" > "OCSP Signing" because
6115 " > SPACE. Changed script to store unquoted versions of
6116 names and add quotes on output. It was also omitting some
6117 names from the lookup table if they were given a default
6118 value (that is if SN is missing it is given the same
6119 value as LN and vice versa), these are now added on the
6120 grounds that if an object has a name we should be able to
6121 look it up. Finally added warning output when duplicate
6122 short or long names are found.
6125 *) Changes needed for Tandem NSK.
6126 [Scott Uroff <scott@xypro.com>]
6128 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6129 RSA_padding_check_SSLv23(), special padding was never detected
6130 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6131 version rollback attacks was not effective.
6133 In s23_clnt.c, don't use special rollback-attack detection padding
6134 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6135 client; similarly, in s23_srvr.c, don't do the rollback check if
6136 SSL 2.0 is the only protocol enabled in the server.
6139 *) Make it possible to get hexdumps of unprintable data with 'openssl
6140 asn1parse'. By implication, the functions ASN1_parse_dump() and
6141 BIO_dump_indent() are added.
6144 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6145 these print out strings and name structures based on various
6146 flags including RFC2253 support and proper handling of
6147 multibyte characters. Added options to the 'x509' utility
6148 to allow the various flags to be set.
6151 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6152 Also change the functions X509_cmp_current_time() and
6153 X509_gmtime_adj() work with an ASN1_TIME structure,
6154 this will enable certificates using GeneralizedTime in validity
6155 dates to be checked.
6158 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6159 negative public key encodings) on by default,
6160 NO_NEG_PUBKEY_BUG can be set to disable it.
6163 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6164 content octets. An i2c_ASN1_OBJECT is unnecessary because
6165 the encoding can be trivially obtained from the structure.
6168 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6169 not read locks (CRYPTO_r_[un]lock).
6172 *) A first attempt at creating official support for shared
6173 libraries through configuration. I've kept it so the
6174 default is static libraries only, and the OpenSSL programs
6175 are always statically linked for now, but there are
6176 preparations for dynamic linking in place.
6177 This has been tested on Linux and Tru64.
6180 *) Randomness polling function for Win9x, as described in:
6181 Peter Gutmann, Software Generation of Practically Strong
6185 *) Fix so PRNG is seeded in req if using an already existing
6189 *) New options to smime application. -inform and -outform
6190 allow alternative formats for the S/MIME message including
6191 PEM and DER. The -content option allows the content to be
6192 specified separately. This should allow things like Netscape
6193 form signing output easier to verify.
6196 *) Fix the ASN1 encoding of tags using the 'long form'.
6199 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6200 STRING types. These convert content octets to and from the
6201 underlying type. The actual tag and length octets are
6202 already assumed to have been read in and checked. These
6203 are needed because all other string types have virtually
6204 identical handling apart from the tag. By having versions
6205 of the ASN1 functions that just operate on content octets
6206 IMPLICIT tagging can be handled properly. It also allows
6207 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6208 and ASN1_INTEGER are identical apart from the tag.
6211 *) Change the handling of OID objects as follows:
6213 - New object identifiers are inserted in objects.txt, following
6214 the syntax given in objects.README.
6215 - objects.pl is used to process obj_mac.num and create a new
6217 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6220 This is currently kind of a hack, and the perl code in objects.pl
6221 isn't very elegant, but it works as I intended. The simplest way
6222 to check that it worked correctly is to look in obj_dat.h and
6223 check the array nid_objs and make sure the objects haven't moved
6224 around (this is important!). Additions are OK, as well as
6225 consistent name changes.
6228 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6231 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6232 The given file adds to whatever has already been seeded into the
6233 random pool through the RANDFILE configuration file option or
6234 environment variable, or the default random state file.
6237 *) mkstack.pl now sorts each macro group into lexical order.
6238 Previously the output order depended on the order the files
6239 appeared in the directory, resulting in needless rewriting
6243 *) Patches to make OpenSSL compile under Win32 again. Mostly
6244 work arounds for the VC++ problem that it treats func() as
6245 func(void). Also stripped out the parts of mkdef.pl that
6246 added extra typesafe functions: these no longer exist.
6249 *) Reorganisation of the stack code. The macros are now all
6250 collected in safestack.h . Each macro is defined in terms of
6251 a "stack macro" of the form SKM_<name>(type, a, b). The
6252 DEBUG_SAFESTACK is now handled in terms of function casts,
6253 this has the advantage of retaining type safety without the
6254 use of additional functions. If DEBUG_SAFESTACK is not defined
6255 then the non typesafe macros are used instead. Also modified the
6256 mkstack.pl script to handle the new form. Needs testing to see
6257 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6258 the default if no major problems. Similar behaviour for ASN1_SET_OF
6259 and PKCS12_STACK_OF.
6262 *) When some versions of IIS use the 'NET' form of private key the
6263 key derivation algorithm is different. Normally MD5(password) is
6264 used as a 128 bit RC4 key. In the modified case
6265 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6266 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6267 as the old Netscape_RSA functions except they have an additional
6268 'sgckey' parameter which uses the modified algorithm. Also added
6269 an -sgckey command line option to the rsa utility. Thanks to
6270 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6271 algorithm to openssl-dev.
6274 *) The evp_local.h macros were using 'c.##kname' which resulted in
6275 invalid expansion on some systems (SCO 5.0.5 for example).
6276 Corrected to 'c.kname'.
6277 [Phillip Porch <root@theporch.com>]
6279 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6280 a STACK of email addresses from a certificate or request, these look
6281 in the subject name and the subject alternative name extensions and
6282 omit any duplicate addresses.
6285 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6286 This makes DSA verification about 2 % faster.
6289 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6290 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6291 plus overhead for 1024 bit moduli).
6292 This makes exponentiations about 0.5 % faster for 1024 bit
6293 exponents (as measured by "openssl speed rsa2048").
6296 *) Rename memory handling macros to avoid conflicts with other
6298 Malloc => OPENSSL_malloc
6299 Malloc_locked => OPENSSL_malloc_locked
6300 Realloc => OPENSSL_realloc
6301 Free => OPENSSL_free
6304 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6305 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6308 *) CygWin32 support.
6309 [John Jarvie <jjarvie@newsguy.com>]
6311 *) The type-safe stack code has been rejigged. It is now only compiled
6312 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6313 by default all type-specific stack functions are "#define"d back to
6314 standard stack functions. This results in more streamlined output
6315 but retains the type-safety checking possibilities of the original
6319 *) The STACK code has been cleaned up, and certain type declarations
6320 that didn't make a lot of sense have been brought in line. This has
6321 also involved a cleanup of sorts in safestack.h to more correctly
6322 map type-safe stack functions onto their plain stack counterparts.
6323 This work has also resulted in a variety of "const"ifications of
6324 lots of the code, especially "_cmp" operations which should normally
6325 be prototyped with "const" parameters anyway.
6328 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6329 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6330 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6331 where all of 'md' is used each time the PRNG is used, but 'state'
6332 is used only indexed by a cyclic counter. As entropy may not be
6333 well distributed from the beginning, 'md' is important as a
6334 chaining variable. However, the output function chains only half
6335 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6336 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6337 in all of 'state' being rewritten, with the new values depending
6338 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6341 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6342 the handshake is continued after ssl_verify_cert_chain();
6343 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6344 can lead to 'unexplainable' connection aborts later.
6345 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6347 *) Major EVP API cipher revision.
6348 Add hooks for extra EVP features. This allows various cipher
6349 parameters to be set in the EVP interface. Support added for variable
6350 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6351 setting of RC2 and RC5 parameters.
6353 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6356 Remove lots of duplicated code from the EVP library. For example *every*
6357 cipher init() function handles the 'iv' in the same way according to the
6358 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6359 for CFB and OFB modes they zero ctx->num.
6361 New functionality allows removal of S/MIME code RC2 hack.
6363 Most of the routines have the same form and so can be declared in terms
6366 By shifting this to the top level EVP_CipherInit() it can be removed from
6367 all individual ciphers. If the cipher wants to handle IVs or keys
6368 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6371 Change lots of functions like EVP_EncryptUpdate() to now return a
6372 value: although software versions of the algorithms cannot fail
6373 any installed hardware versions can.
6376 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6377 this option is set, tolerate broken clients that send the negotiated
6378 protocol version number instead of the requested protocol version
6382 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6383 i.e. non-zero for export ciphersuites, zero otherwise.
6384 Previous versions had this flag inverted, inconsistent with
6385 rsa_tmp_cb (..._TMP_RSA_CB).
6386 [Bodo Moeller; problem reported by Amit Chopra]
6388 *) Add missing DSA library text string. Work around for some IIS
6389 key files with invalid SEQUENCE encoding.
6392 *) Add a document (doc/standards.txt) that list all kinds of standards
6393 and so on that are implemented in OpenSSL.
6396 *) Enhance c_rehash script. Old version would mishandle certificates
6397 with the same subject name hash and wouldn't handle CRLs at all.
6398 Added -fingerprint option to crl utility, to support new c_rehash
6402 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6405 *) Fix for SSL server purpose checking. Server checking was
6406 rejecting certificates which had extended key usage present
6407 but no ssl client purpose.
6408 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6410 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6411 is a little unclear about how a blank password is handled.
6412 Since the password in encoded as a BMPString with terminating
6413 double NULL a zero length password would end up as just the
6414 double NULL. However no password at all is different and is
6415 handled differently in the PKCS#12 key generation code. NS
6416 treats a blank password as zero length. MSIE treats it as no
6417 password on export: but it will try both on import. We now do
6418 the same: PKCS12_parse() tries zero length and no password if
6419 the password is set to "" or NULL (NULL is now a valid password:
6420 it wasn't before) as does the pkcs12 application.
6423 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6424 perror when PEM_read_bio_X509_REQ fails, the error message must
6425 be obtained from the error queue.
6428 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6429 it in ERR_remove_state if appropriate, and change ERR_get_state
6430 accordingly to avoid race conditions (this is necessary because
6431 thread_hash is no longer constant once set).
6434 *) Bugfix for linux-elf makefile.one.
6437 *) RSA_get_default_method() will now cause a default
6438 RSA_METHOD to be chosen if one doesn't exist already.
6439 Previously this was only set during a call to RSA_new()
6440 or RSA_new_method(NULL) meaning it was possible for
6441 RSA_get_default_method() to return NULL.
6444 *) Added native name translation to the existing DSO code
6445 that will convert (if the flag to do so is set) filenames
6446 that are sufficiently small and have no path information
6447 into a canonical native form. Eg. "blah" converted to
6448 "libblah.so" or "blah.dll" etc.
6451 *) New function ERR_error_string_n(e, buf, len) which is like
6452 ERR_error_string(e, buf), but writes at most 'len' bytes
6453 including the 0 terminator. For ERR_error_string_n, 'buf'
6455 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6457 *) CONF library reworked to become more general. A new CONF
6458 configuration file reader "class" is implemented as well as a
6459 new functions (NCONF_*, for "New CONF") to handle it. The now
6460 old CONF_* functions are still there, but are reimplemented to
6461 work in terms of the new functions. Also, a set of functions
6462 to handle the internal storage of the configuration data is
6463 provided to make it easier to write new configuration file
6464 reader "classes" (I can definitely see something reading a
6465 configuration file in XML format, for example), called _CONF_*,
6466 or "the configuration storage API"...
6468 The new configuration file reading functions are:
6470 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6471 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6473 NCONF_default, NCONF_WIN32
6475 NCONF_dump_fp, NCONF_dump_bio
6477 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6478 NCONF_new creates a new CONF object. This works in the same way
6479 as other interfaces in OpenSSL, like the BIO interface.
6480 NCONF_dump_* dump the internal storage of the configuration file,
6481 which is useful for debugging. All other functions take the same
6482 arguments as the old CONF_* functions wth the exception of the
6483 first that must be a `CONF *' instead of a `LHASH *'.
6485 To make it easer to use the new classes with the old CONF_* functions,
6486 the function CONF_set_default_method is provided.
6489 *) Add '-tls1' option to 'openssl ciphers', which was already
6490 mentioned in the documentation but had not been implemented.
6491 (This option is not yet really useful because even the additional
6492 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6495 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6496 OpenSSL-based applications) load shared libraries and bind to
6497 them in a portable way.
6498 [Geoff Thorpe, with contributions from Richard Levitte]
6500 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6502 *) Make sure _lrotl and _lrotr are only used with MSVC.
6504 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6505 (the default implementation of RAND_status).
6507 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6508 to '-clrext' (= clear extensions), as intended and documented.
6509 [Bodo Moeller; inconsistency pointed out by Michael Attili
6512 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6513 was larger than the MD block size.
6514 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6516 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6517 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6518 using the passed key: if the passed key was a private key the result
6519 of X509_print(), for example, would be to print out all the private key
6523 *) des_quad_cksum() byte order bug fix.
6524 [Ulf Möller, using the problem description in krb4-0.9.7, where
6525 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6527 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6529 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6531 *) For easily testing in shell scripts whether some command
6532 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6533 returns with exit code 0 iff no command of the given name is available.
6534 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6535 the output goes to stdout and nothing is printed to stderr.
6536 Additional arguments are always ignored.
6538 Since for each cipher there is a command of the same name,
6539 the 'no-cipher' compilation switches can be tested this way.
6541 ('openssl no-XXX' is not able to detect pseudo-commands such
6542 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6545 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6548 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6549 is set; it will be thrown away anyway because each handshake creates
6551 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6552 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6553 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6554 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6557 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6558 'Q' and 'R' lose their special meanings (quit/renegotiate).
6559 This is part of what -quiet does; unlike -quiet, -ign_eof
6560 does not suppress any output.
6563 *) Add compatibility options to the purpose and trust code. The
6564 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6565 accepts a certificate or CA, this was the previous behaviour,
6566 with all the associated security issues.
6568 X509_TRUST_COMPAT is the old trust behaviour: only and
6569 automatically trust self signed roots in certificate store. A
6570 new trust setting X509_TRUST_DEFAULT is used to specify that
6571 a purpose has no associated trust setting and it should instead
6572 use the value in the default purpose.
6575 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6576 and fix a memory leak.
6579 *) In util/mkerr.pl (which implements 'make errors'), preserve
6580 reason strings from the previous version of the .c file, as
6581 the default to have only downcase letters (and digits) in
6582 automatically generated reasons codes is not always appropriate.
6585 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6586 using strerror. Previously, ERR_reason_error_string() returned
6587 library names as reason strings for SYSerr; but SYSerr is a special
6588 case where small numbers are errno values, not library numbers.
6591 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6592 converts DSA parameters into DH parameters. (When creating parameters,
6593 DSA_generate_parameters is used.)
6596 *) Include 'length' (recommended exponent length) in C code generated
6597 by 'openssl dhparam -C'.
6600 *) The second argument to set_label in perlasm was already being used
6601 so couldn't be used as a "file scope" flag. Moved to third argument
6605 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6606 instead of RAND_bytes for encryption IVs and salts.
6609 *) Include RAND_status() into RAND_METHOD instead of implementing
6610 it only for md_rand.c Otherwise replacing the PRNG by calling
6611 RAND_set_rand_method would be impossible.
6614 *) Don't let DSA_generate_key() enter an infinite loop if the random
6615 number generation fails.
6618 *) New 'rand' application for creating pseudo-random output.
6621 *) Added configuration support for Linux/IA64
6622 [Rolf Haberrecker <rolf@suse.de>]
6624 *) Assembler module support for Mingw32.
6627 *) Shared library support for HPUX (in shlib/).
6628 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6630 *) Shared library support for Solaris gcc.
6631 [Lutz Behnke <behnke@trustcenter.de>]
6633 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6635 *) PKCS7_encrypt() was adding text MIME headers twice because they
6636 were added manually and by SMIME_crlf_copy().
6639 *) In bntest.c don't call BN_rand with zero bits argument.
6640 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6642 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6643 case was implemented. This caused BN_div_recp() to fail occasionally.
6646 *) Add an optional second argument to the set_label() in the perl
6647 assembly language builder. If this argument exists and is set
6648 to 1 it signals that the assembler should use a symbol whose
6649 scope is the entire file, not just the current function. This
6650 is needed with MASM which uses the format label:: for this scope.
6651 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6653 *) Change the ASN1 types so they are typedefs by default. Before
6654 almost all types were #define'd to ASN1_STRING which was causing
6655 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6659 *) Change names of new functions to the new get1/get0 naming
6660 convention: After 'get1', the caller owns a reference count
6661 and has to call ..._free; 'get0' returns a pointer to some
6662 data structure without incrementing reference counters.
6663 (Some of the existing 'get' functions increment a reference
6664 counter, some don't.)
6665 Similarly, 'set1' and 'add1' functions increase reference
6666 counters or duplicate objects.
6669 *) Allow for the possibility of temp RSA key generation failure:
6670 the code used to assume it always worked and crashed on failure.
6673 *) Fix potential buffer overrun problem in BIO_printf().
6674 [Ulf Möller, using public domain code by Patrick Powell; problem
6675 pointed out by David Sacerdote <das33@cornell.edu>]
6677 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6678 RAND_egd() and RAND_status(). In the command line application,
6679 the EGD socket can be specified like a seed file using RANDFILE
6683 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6684 Some CAs (e.g. Verisign) distribute certificates in this form.
6687 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6688 list to exclude them. This means that no special compilation option
6689 is needed to use anonymous DH: it just needs to be included in the
6693 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6694 EVP_MD_type. The old functionality is available in a new macro called
6695 EVP_MD_md(). Change code that uses it and update docs.
6698 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6699 where the 'void *' argument is replaced by a function pointer argument.
6700 Previously 'void *' was abused to point to functions, which works on
6701 many platforms, but is not correct. As these functions are usually
6702 called by macros defined in OpenSSL header files, most source code
6703 should work without changes.
6706 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6707 sections with information on -D... compiler switches used for
6708 compiling the library so that applications can see them. To enable
6709 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6710 must be defined. E.g.,
6711 #define OPENSSL_ALGORITHM_DEFINES
6712 #include <openssl/opensslconf.h>
6713 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6714 [Richard Levitte, Ulf and Bodo Möller]
6716 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6720 *) Change the 'other' type in certificate aux info to a STACK_OF
6721 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6722 the required ASN1 format: arbitrary types determined by an OID.
6725 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6726 argument to 'req'. This is not because the function is newer or
6727 better than others it just uses the work 'NEW' in the certificate
6728 request header lines. Some software needs this.
6731 *) Reorganise password command line arguments: now passwords can be
6732 obtained from various sources. Delete the PEM_cb function and make
6733 it the default behaviour: i.e. if the callback is NULL and the
6734 usrdata argument is not NULL interpret it as a null terminated pass
6735 phrase. If usrdata and the callback are NULL then the pass phrase
6736 is prompted for as usual.
6739 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6740 the support is automatically enabled. The resulting binaries will
6741 autodetect the card and use it if present.
6742 [Ben Laurie and Compaq Inc.]
6744 *) Work around for Netscape hang bug. This sends certificate request
6745 and server done in one record. Since this is perfectly legal in the
6746 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6747 the bugs/SSLv3 entry for more info.
6750 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6753 *) Add -rand argument to smime and pkcs12 applications and read/write
6757 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6760 *) Add command line password options to the remaining applications.
6763 *) Bug fix for BN_div_recp() for numerators with an even number of
6767 *) More tests in bntest.c, and changed test_bn output.
6770 *) ./config recognizes MacOS X now.
6773 *) Bug fix for BN_div() when the first words of num and divsor are
6774 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6777 *) Add support for various broken PKCS#8 formats, and command line
6778 options to produce them.
6781 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6782 get temporary BIGNUMs from a BN_CTX.
6785 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6789 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6790 include a #define from the old name to the new. The original intent
6791 was that statically linked binaries could for example just call
6792 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6793 link with digests. This never worked becayse SSLeay_add_all_digests()
6794 and SSLeay_add_all_ciphers() were in the same source file so calling
6795 one would link with the other. They are now in separate source files.
6798 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6801 *) Use a less unusual form of the Miller-Rabin primality test (it used
6802 a binary algorithm for exponentiation integrated into the Miller-Rabin
6803 loop, our standard modexp algorithms are faster).
6806 *) Support for the EBCDIC character set completed.
6807 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6809 *) Source code cleanups: use const where appropriate, eliminate casts,
6810 use void * instead of char * in lhash.
6813 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6814 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6815 this the server could overwrite ephemeral keys that the client
6819 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6820 using 50 iterations of the Rabin-Miller test.
6822 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6823 iterations of the Rabin-Miller test as required by the appendix
6824 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6825 As BN_is_prime_fasttest includes trial division, DSA parameter
6826 generation becomes much faster.
6828 This implies a change for the callback functions in DSA_is_prime
6829 and DSA_generate_parameters: The callback function is called once
6830 for each positive witness in the Rabin-Miller test, not just
6831 occasionally in the inner loop; and the parameters to the
6832 callback function now provide an iteration count for the outer
6833 loop rather than for the current invocation of the inner loop.
6834 DSA_generate_parameters additionally can call the callback
6835 function with an 'iteration count' of -1, meaning that a
6836 candidate has passed the trial division test (when q is generated
6837 from an application-provided seed, trial division is skipped).
6840 *) New function BN_is_prime_fasttest that optionally does trial
6841 division before starting the Rabin-Miller test and has
6842 an additional BN_CTX * argument (whereas BN_is_prime always
6843 has to allocate at least one BN_CTX).
6844 'callback(1, -1, cb_arg)' is called when a number has passed the
6845 trial division stage.
6848 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6852 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6855 *) New function BN_pseudo_rand().
6858 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6859 bignum version of BN_from_montgomery() with the working code from
6860 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6864 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6865 made it impossible to use the same SSL_SESSION data structure in
6866 SSL2 clients in multiple threads.
6869 *) The return value of RAND_load_file() no longer counts bytes obtained
6870 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6871 to seed the PRNG (previously an explicit byte count was required).
6872 [Ulf Möller, Bodo Möller]
6874 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6875 used (char *) instead of (void *) and had casts all over the place.
6878 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6881 *) Retain source code compatibility for BN_prime_checks macro:
6882 BN_is_prime(..., BN_prime_checks, ...) now uses
6883 BN_prime_checks_for_size to determine the appropriate number of
6884 Rabin-Miller iterations.
6887 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6888 DH_CHECK_P_NOT_SAFE_PRIME.
6889 (Check if this is true? OpenPGP calls them "strong".)
6892 *) Merge the functionality of "dh" and "gendh" programs into a new program
6893 "dhparam". The old programs are retained for now but will handle DH keys
6894 (instead of parameters) in future.
6897 *) Make the ciphers, s_server and s_client programs check the return values
6898 when a new cipher list is set.
6901 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6902 ciphers. Before when the 56bit ciphers were enabled the sorting was
6905 The syntax for the cipher sorting has been extended to support sorting by
6906 cipher-strength (using the strength_bits hard coded in the tables).
6907 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6909 Fix a bug in the cipher-command parser: when supplying a cipher command
6910 string with an "undefined" symbol (neither command nor alphanumeric
6911 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6912 an error is flagged.
6914 Due to the strength-sorting extension, the code of the
6915 ssl_create_cipher_list() function was completely rearranged. I hope that
6916 the readability was also increased :-)
6917 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6919 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6920 for the first serial number and places 2 in the serial number file. This
6921 avoids problems when the root CA is created with serial number zero and
6922 the first user certificate has the same issuer name and serial number
6926 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6927 the new code. Add documentation for this stuff.
6930 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6931 X509_*() to X509at_*() on the grounds that they don't handle X509
6932 structures and behave in an analagous way to the X509v3 functions:
6933 they shouldn't be called directly but wrapper functions should be used
6936 So we also now have some wrapper functions that call the X509at functions
6937 when passed certificate requests. (TO DO: similar things can be done with
6938 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6939 things. Some of these need some d2i or i2d and print functionality
6940 because they handle more complex structures.)
6943 *) Add missing #ifndefs that caused missing symbols when building libssl
6944 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6945 NO_RSA in ssl/s2*.c.
6946 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6948 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6949 has a return value which indicates the quality of the random data
6950 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6951 error queue. New function RAND_pseudo_bytes() generates output that is
6952 guaranteed to be unique but not unpredictable. RAND_add is like
6953 RAND_seed, but takes an extra argument for an entropy estimate
6954 (RAND_seed always assumes full entropy).
6957 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6958 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6959 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6960 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6961 false-positive rate of at most 2^-80 for random input.
6964 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6967 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6968 in the 0.9.5 release), this returns the chain
6969 from an X509_CTX structure with a dup of the stack and all
6970 the X509 reference counts upped: so the stack will exist
6971 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6974 Also make SSL_SESSION_print() print out the verify return
6978 *) Add manpage for the pkcs12 command. Also change the default
6979 behaviour so MAC iteration counts are used unless the new
6980 -nomaciter option is used. This improves file security and
6981 only older versions of MSIE (4.0 for example) need it.
6984 *) Honor the no-xxx Configure options when creating .DEF files.
6987 *) Add PKCS#10 attributes to field table: challengePassword,
6988 unstructuredName and unstructuredAddress. These are taken from
6989 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6990 international characters are used.
6992 More changes to X509_ATTRIBUTE code: allow the setting of types
6993 based on strings. Remove the 'loc' parameter when adding
6994 attributes because these will be a SET OF encoding which is sorted
6998 *) Initial changes to the 'req' utility to allow request generation
6999 automation. This will allow an application to just generate a template
7000 file containing all the field values and have req construct the
7003 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7004 used all over the place including certificate requests and PKCS#7
7005 structures. They are currently handled manually where necessary with
7006 some primitive wrappers for PKCS#7. The new functions behave in a
7007 manner analogous to the X509 extension functions: they allow
7008 attributes to be looked up by NID and added.
7010 Later something similar to the X509V3 code would be desirable to
7011 automatically handle the encoding, decoding and printing of the
7012 more complex types. The string types like challengePassword can
7013 be handled by the string table functions.
7015 Also modified the multi byte string table handling. Now there is
7016 a 'global mask' which masks out certain types. The table itself
7017 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7018 is useful when for example there is only one permissible type
7019 (as in countryName) and using the mask might result in no valid
7023 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7024 SSL_get_peer_finished to allow applications to obtain the latest
7025 Finished messages sent to the peer or expected from the peer,
7026 respectively. (SSL_get_peer_finished is usually the Finished message
7027 actually received from the peer, otherwise the protocol will be aborted.)
7029 As the Finished message are message digests of the complete handshake
7030 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7031 be used for external authentication procedures when the authentication
7032 provided by SSL/TLS is not desired or is not enough.
7035 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7036 the host supports BWX extension and if Compaq C is present on the
7037 $PATH. Just exploiting of the BWX extension results in 20-30%
7038 performance kick for some algorithms, e.g. DES and RC4 to mention
7039 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7043 *) Add support for MS "fast SGC". This is arguably a violation of the
7044 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7045 weak crypto and after checking the certificate is SGC a second one
7046 with strong crypto. MS SGC stops the first handshake after receiving
7047 the server certificate message and sends a second client hello. Since
7048 a server will typically do all the time consuming operations before
7049 expecting any further messages from the client (server key exchange
7050 is the most expensive) there is little difference between the two.
7052 To get OpenSSL to support MS SGC we have to permit a second client
7053 hello message after we have sent server done. In addition we have to
7054 reset the MAC if we do get this second client hello.
7057 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7058 if a DER encoded private key is RSA or DSA traditional format. Changed
7059 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7060 format DER encoded private key. Newer code should use PKCS#8 format which
7061 has the key type encoded in the ASN1 structure. Added DER private key
7062 support to pkcs8 application.
7065 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7066 ciphersuites has been selected (as required by the SSL 3/TLS 1
7067 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7068 is set, we interpret this as a request to violate the specification
7069 (the worst that can happen is a handshake failure, and 'correct'
7070 behaviour would result in a handshake failure anyway).
7073 *) In SSL_CTX_add_session, take into account that there might be multiple
7074 SSL_SESSION structures with the same session ID (e.g. when two threads
7075 concurrently obtain them from an external cache).
7076 The internal cache can handle only one SSL_SESSION with a given ID,
7077 so if there's a conflict, we now throw out the old one to achieve
7081 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7082 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7083 some routines that use cipher OIDs: some ciphers do not have OIDs
7084 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7088 *) Simplify the trust setting structure and code. Now we just have
7089 two sequences of OIDs for trusted and rejected settings. These will
7090 typically have values the same as the extended key usage extension
7091 and any application specific purposes.
7093 The trust checking code now has a default behaviour: it will just
7094 check for an object with the same NID as the passed id. Functions can
7095 be provided to override either the default behaviour or the behaviour
7096 for a given id. SSL client, server and email already have functions
7097 in place for compatibility: they check the NID and also return "trusted"
7098 if the certificate is self signed.
7101 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7102 traditional format into an EVP_PKEY structure.
7105 *) Add a password callback function PEM_cb() which either prompts for
7106 a password if usr_data is NULL or otherwise assumes it is a null
7107 terminated password. Allow passwords to be passed on command line
7108 environment or config files in a few more utilities.
7111 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7112 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7113 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7114 Update documentation.
7117 *) Support for ASN1 "NULL" type. This could be handled before by using
7118 ASN1_TYPE but there wasn't any function that would try to read a NULL
7119 and produce an error if it couldn't. For compatibility we also have
7120 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7121 don't allocate anything because they don't need to.
7124 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7126 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7128 *) Rebuild of the memory allocation routines used by OpenSSL code and
7129 possibly others as well. The purpose is to make an interface that
7130 provide hooks so anyone can build a separate set of allocation and
7131 deallocation routines to be used by OpenSSL, for example memory
7132 pool implementations, or something else, which was previously hard
7133 since Malloc(), Realloc() and Free() were defined as macros having
7134 the values malloc, realloc and free, respectively (except for Win32
7135 compilations). The same is provided for memory debugging code.
7136 OpenSSL already comes with functionality to find memory leaks, but
7137 this gives people a chance to debug other memory problems.
7139 With these changes, a new set of functions and macros have appeared:
7141 CRYPTO_set_mem_debug_functions() [F]
7142 CRYPTO_get_mem_debug_functions() [F]
7143 CRYPTO_dbg_set_options() [F]
7144 CRYPTO_dbg_get_options() [F]
7145 CRYPTO_malloc_debug_init() [M]
7147 The memory debug functions are NULL by default, unless the library
7148 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7149 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7150 gives the standard debugging functions that come with OpenSSL) or
7151 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7152 provided by the library user) must be used. When the standard
7153 debugging functions are used, CRYPTO_dbg_set_options can be used to
7154 request additional information:
7155 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7156 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7158 Also, things like CRYPTO_set_mem_functions will always give the
7159 expected result (the new set of functions is used for allocation
7160 and deallocation) at all times, regardless of platform and compiler
7163 To finish it up, some functions that were never use in any other
7164 way than through macros have a new API and new semantic:
7167 CRYPTO_dbg_realloc()
7170 All macros of value have retained their old syntax.
7171 [Richard Levitte and Bodo Moeller]
7173 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7174 ordering of SMIMECapabilities wasn't in "strength order" and there
7175 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7179 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7180 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7181 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7183 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7184 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7185 functionality to handle multipart/signed properly) and a utility
7186 called 'smime' to call all this stuff. This is based on code I
7187 originally wrote for Celo who have kindly allowed it to be
7188 included in OpenSSL.
7191 *) Add variants des_set_key_checked and des_set_key_unchecked of
7192 des_set_key (aka des_key_sched). Global variable des_check_key
7193 decides which of these is called by des_set_key; this way
7194 des_check_key behaves as it always did, but applications and
7195 the library itself, which was buggy for des_check_key == 1,
7196 have a cleaner way to pick the version they need.
7199 *) New function PKCS12_newpass() which changes the password of a
7203 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7204 dynamic mix. In both cases the ids can be used as an index into the
7205 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7206 functions so they accept a list of the field values and the
7207 application doesn't need to directly manipulate the X509_TRUST
7211 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7215 *) Modify the way the V3 extension code looks up extensions. This now
7216 works in a similar way to the object code: we have some "standard"
7217 extensions in a static table which is searched with OBJ_bsearch()
7218 and the application can add dynamic ones if needed. The file
7219 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7220 updated whenever a new extension is added to the core code and kept
7221 in ext_nid order. There is a simple program 'tabtest.c' which checks
7222 this. New extensions are not added too often so this file can readily
7223 be maintained manually.
7225 There are two big advantages in doing things this way. The extensions
7226 can be looked up immediately and no longer need to be "added" using
7227 X509V3_add_standard_extensions(): this function now does nothing.
7228 [Side note: I get *lots* of email saying the extension code doesn't
7229 work because people forget to call this function]
7230 Also no dynamic allocation is done unless new extensions are added:
7231 so if we don't add custom extensions there is no need to call
7232 X509V3_EXT_cleanup().
7235 *) Modify enc utility's salting as follows: make salting the default. Add a
7236 magic header, so unsalted files fail gracefully instead of just decrypting
7237 to garbage. This is because not salting is a big security hole, so people
7238 should be discouraged from doing it.
7241 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7242 digest to be passed on the command line but it only used this
7243 parameter when signing a certificate. Modified so all relevant
7244 operations are affected by the digest parameter including the
7245 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7246 DSA key was used because it didn't fix the digest.
7249 *) Initial certificate chain verify code. Currently tests the untrusted
7250 certificates for consistency with the verify purpose (which is set
7251 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7253 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7254 this is because it will reject chains with invalid extensions whereas
7255 every previous version of OpenSSL and SSLeay made no checks at all.
7257 Trust code: checks the root CA for the relevant trust settings. Trust
7258 settings have an initial value consistent with the verify purpose: e.g.
7259 if the verify purpose is for SSL client use it expects the CA to be
7260 trusted for SSL client use. However the default value can be changed to
7261 permit custom trust settings: one example of this would be to only trust
7262 certificates from a specific "secure" set of CAs.
7264 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7265 which should be used for version portability: especially since the
7266 verify structure is likely to change more often now.
7268 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7269 to set them. If not set then assume SSL clients will verify SSL servers
7272 Two new options to the verify program: -untrusted allows a set of
7273 untrusted certificates to be passed in and -purpose which sets the
7274 intended purpose of the certificate. If a purpose is set then the
7275 new chain verify code is used to check extension consistency.
7278 *) Support for the authority information access extension.
7281 *) Modify RSA and DSA PEM read routines to transparently handle
7282 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7283 public keys in a format compatible with certificate
7284 SubjectPublicKeyInfo structures. Unfortunately there were already
7285 functions called *_PublicKey_* which used various odd formats so
7286 these are retained for compatibility: however the DSA variants were
7287 never in a public release so they have been deleted. Changed dsa/rsa
7288 utilities to handle the new format: note no releases ever handled public
7289 keys so we should be OK.
7291 The primary motivation for this change is to avoid the same fiasco
7292 that dogs private keys: there are several incompatible private key
7293 formats some of which are standard and some OpenSSL specific and
7294 require various evil hacks to allow partial transparent handling and
7295 even then it doesn't work with DER formats. Given the option anything
7296 other than PKCS#8 should be dumped: but the other formats have to
7297 stay in the name of compatibility.
7299 With public keys and the benefit of hindsight one standard format
7300 is used which works with EVP_PKEY, RSA or DSA structures: though
7301 it clearly returns an error if you try to read the wrong kind of key.
7303 Added a -pubkey option to the 'x509' utility to output the public key.
7304 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7305 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7306 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7307 that do the same as the EVP_PKEY_assign_*() except they up the
7308 reference count of the added key (they don't "swallow" the
7312 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7313 CRLs would fail if the file contained no certificates or no CRLs:
7314 added a new function to read in both types and return the number
7315 read: this means that if none are read it will be an error. The
7316 DER versions of the certificate and CRL reader would always fail
7317 because it isn't possible to mix certificates and CRLs in DER format
7318 without choking one or the other routine. Changed this to just read
7319 a certificate: this is the best we can do. Also modified the code
7320 in apps/verify.c to take notice of return codes: it was previously
7321 attempting to read in certificates from NULL pointers and ignoring
7322 any errors: this is one reason why the cert and CRL reader seemed
7323 to work. It doesn't check return codes from the default certificate
7324 routines: these may well fail if the certificates aren't installed.
7327 *) Code to support otherName option in GeneralName.
7330 *) First update to verify code. Change the verify utility
7331 so it warns if it is passed a self signed certificate:
7332 for consistency with the normal behaviour. X509_verify
7333 has been modified to it will now verify a self signed
7334 certificate if *exactly* the same certificate appears
7335 in the store: it was previously impossible to trust a
7336 single self signed certificate. This means that:
7337 openssl verify ss.pem
7338 now gives a warning about a self signed certificate but
7339 openssl verify -CAfile ss.pem ss.pem
7343 *) For servers, store verify_result in SSL_SESSION data structure
7344 (and add it to external session representation).
7345 This is needed when client certificate verifications fails,
7346 but an application-provided verification callback (set by
7347 SSL_CTX_set_cert_verify_callback) allows accepting the session
7348 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7349 but returns 1): When the session is reused, we have to set
7350 ssl->verify_result to the appropriate error code to avoid
7352 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7354 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7355 case in PKCS7_dataInit() where the signed PKCS7 structure
7356 didn't contain any existing data because it was being created.
7357 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7359 *) Add a salt to the key derivation routines in enc.c. This
7360 forms the first 8 bytes of the encrypted file. Also add a
7361 -S option to allow a salt to be input on the command line.
7364 *) New function X509_cmp(). Oddly enough there wasn't a function
7365 to compare two certificates. We do this by working out the SHA1
7366 hash and comparing that. X509_cmp() will be needed by the trust
7370 *) SSL_get1_session() is like SSL_get_session(), but increments
7371 the reference count in the SSL_SESSION returned.
7372 [Geoff Thorpe <geoff@eu.c2.net>]
7374 *) Fix for 'req': it was adding a null to request attributes.
7375 Also change the X509_LOOKUP and X509_INFO code to handle
7376 certificate auxiliary information.
7379 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7383 *) Add the possibility to add extra information to the memory leak
7384 detecting output, to form tracebacks, showing from where each
7385 allocation was originated: CRYPTO_push_info("constant string") adds
7386 the string plus current file name and line number to a per-thread
7387 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7388 is like calling CYRPTO_pop_info() until the stack is empty.
7389 Also updated memory leak detection code to be multi-thread-safe.
7392 *) Add options -text and -noout to pkcs7 utility and delete the
7393 encryption options which never did anything. Update docs.
7396 *) Add options to some of the utilities to allow the pass phrase
7397 to be included on either the command line (not recommended on
7398 OSes like Unix) or read from the environment. Update the
7399 manpages and fix a few bugs.
7402 *) Add a few manpages for some of the openssl commands.
7405 *) Fix the -revoke option in ca. It was freeing up memory twice,
7406 leaking and not finding already revoked certificates.
7409 *) Extensive changes to support certificate auxiliary information.
7410 This involves the use of X509_CERT_AUX structure and X509_AUX
7411 functions. An X509_AUX function such as PEM_read_X509_AUX()
7412 can still read in a certificate file in the usual way but it
7413 will also read in any additional "auxiliary information". By
7414 doing things this way a fair degree of compatibility can be
7415 retained: existing certificates can have this information added
7416 using the new 'x509' options.
7418 Current auxiliary information includes an "alias" and some trust
7419 settings. The trust settings will ultimately be used in enhanced
7420 certificate chain verification routines: currently a certificate
7421 can only be trusted if it is self signed and then it is trusted
7425 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7426 The problem was that one of the replacement routines had not been working
7427 since SSLeay releases. For now the offending routine has been replaced
7428 with non-optimised assembler. Even so, this now gives around 95%
7429 performance improvement for 1024 bit RSA signs.
7432 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7433 handling. Most clients have the effective key size in bits equal to
7434 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7435 A few however don't do this and instead use the size of the decrypted key
7436 to determine the RC2 key length and the AlgorithmIdentifier to determine
7437 the effective key length. In this case the effective key length can still
7438 be 40 bits but the key length can be 168 bits for example. This is fixed
7439 by manually forcing an RC2 key into the EVP_PKEY structure because the
7440 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7441 the key length and effective key length are equal.
7444 *) Add a bunch of functions that should simplify the creation of
7445 X509_NAME structures. Now you should be able to do:
7446 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7447 and have it automatically work out the correct field type and fill in
7448 the structures. The more adventurous can try:
7449 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7450 and it will (hopefully) work out the correct multibyte encoding.
7453 *) Change the 'req' utility to use the new field handling and multibyte
7454 copy routines. Before the DN field creation was handled in an ad hoc
7455 way in req, ca, and x509 which was rather broken and didn't support
7456 BMPStrings or UTF8Strings. Since some software doesn't implement
7457 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7458 using the dirstring_type option. See the new comment in the default
7459 openssl.cnf for more info.
7462 *) Make crypto/rand/md_rand.c more robust:
7463 - Assure unique random numbers after fork().
7464 - Make sure that concurrent threads access the global counter and
7465 md serializably so that we never lose entropy in them
7466 or use exactly the same state in multiple threads.
7467 Access to the large state is not always serializable because
7468 the additional locking could be a performance killer, and
7469 md should be large enough anyway.
7472 *) New file apps/app_rand.c with commonly needed functionality
7473 for handling the random seed file.
7475 Use the random seed file in some applications that previously did not:
7477 dsaparam -genkey (which also ignored its '-rand' option),
7480 x509 (when signing).
7481 Except on systems with /dev/urandom, it is crucial to have a random
7482 seed file at least for key creation, DSA signing, and for DH exchanges;
7483 for RSA signatures we could do without one.
7485 gendh and gendsa (unlike genrsa) used to read only the first byte
7486 of each file listed in the '-rand' option. The function as previously
7487 found in genrsa is now in app_rand.c and is used by all programs
7488 that support '-rand'.
7491 *) In RAND_write_file, use mode 0600 for creating files;
7492 don't just chmod when it may be too late.
7495 *) Report an error from X509_STORE_load_locations
7496 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7499 *) New function ASN1_mbstring_copy() this copies a string in either
7500 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7501 into an ASN1_STRING type. A mask of permissible types is passed
7502 and it chooses the "minimal" type to use or an error if not type
7506 *) Add function equivalents to the various macros in asn1.h. The old
7507 macros are retained with an M_ prefix. Code inside the library can
7508 use the M_ macros. External code (including the openssl utility)
7509 should *NOT* in order to be "shared library friendly".
7512 *) Add various functions that can check a certificate's extensions
7513 to see if it usable for various purposes such as SSL client,
7514 server or S/MIME and CAs of these types. This is currently
7515 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7516 verification. Also added a -purpose flag to x509 utility to
7517 print out all the purposes.
7520 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7524 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7525 for, obtain and decode and extension and obtain its critical flag.
7526 This allows all the necessary extension code to be handled in a
7527 single function call.
7530 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7531 platforms. See crypto/rc4/rc4_enc.c for further details.
7534 *) New -noout option to asn1parse. This causes no output to be produced
7535 its main use is when combined with -strparse and -out to extract data
7536 from a file (which may not be in ASN.1 format).
7539 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7540 when producing the local key id.
7541 [Richard Levitte <levitte@stacken.kth.se>]
7543 *) New option -dhparam in s_server. This allows a DH parameter file to be
7544 stated explicitly. If it is not stated then it tries the first server
7545 certificate file. The previous behaviour hard coded the filename
7549 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7550 a public key to be input or output. For example:
7551 openssl rsa -in key.pem -pubout -out pubkey.pem
7552 Also added necessary DSA public key functions to handle this.
7555 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7556 in the message. This was handled by allowing
7557 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7558 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7560 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7561 to the end of the strings whereas this didn't. This would cause problems
7562 if strings read with d2i_ASN1_bytes() were later modified.
7563 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7565 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7566 data and it contains EOF it will end up returning an error. This is
7567 caused by input 46 bytes long. The cause is due to the way base64
7568 BIOs find the start of base64 encoded data. They do this by trying a
7569 trial decode on each line until they find one that works. When they
7570 do a flag is set and it starts again knowing it can pass all the
7571 data directly through the decoder. Unfortunately it doesn't reset
7572 the context it uses. This means that if EOF is reached an attempt
7573 is made to pass two EOFs through the context and this causes the
7574 resulting error. This can also cause other problems as well. As is
7575 usual with these problems it takes *ages* to find and the fix is
7576 trivial: move one line.
7577 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7579 *) Ugly workaround to get s_client and s_server working under Windows. The
7580 old code wouldn't work because it needed to select() on sockets and the
7581 tty (for keypresses and to see if data could be written). Win32 only
7582 supports select() on sockets so we select() with a 1s timeout on the
7583 sockets and then see if any characters are waiting to be read, if none
7584 are present then we retry, we also assume we can always write data to
7585 the tty. This isn't nice because the code then blocks until we've
7586 received a complete line of data and it is effectively polling the
7587 keyboard at 1s intervals: however it's quite a bit better than not
7588 working at all :-) A dedicated Windows application might handle this
7589 with an event loop for example.
7592 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7593 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7594 will be called when RSA_sign() and RSA_verify() are used. This is useful
7595 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7596 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7597 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7598 This necessitated the support of an extra signature type NID_md5_sha1
7599 for SSL signatures and modifications to the SSL library to use it instead
7600 of calling RSA_public_decrypt() and RSA_private_encrypt().
7603 *) Add new -verify -CAfile and -CApath options to the crl program, these
7604 will lookup a CRL issuers certificate and verify the signature in a
7605 similar way to the verify program. Tidy up the crl program so it
7606 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7607 less strict. It will now permit CRL extensions even if it is not
7608 a V2 CRL: this will allow it to tolerate some broken CRLs.
7611 *) Initialize all non-automatic variables each time one of the openssl
7612 sub-programs is started (this is necessary as they may be started
7613 multiple times from the "OpenSSL>" prompt).
7614 [Lennart Bang, Bodo Moeller]
7616 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7617 removing all other RSA functionality (this is what NO_RSA does). This
7618 is so (for example) those in the US can disable those operations covered
7619 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7623 *) Non-copying interface to BIO pairs.
7624 (still largely untested)
7627 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7628 ASCII string. This was handled independently in various places before.
7631 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7632 UTF8 strings a character at a time.
7635 *) Use client_version from client hello to select the protocol
7636 (s23_srvr.c) and for RSA client key exchange verification
7637 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7640 *) Add various utility functions to handle SPKACs, these were previously
7641 handled by poking round in the structure internals. Added new function
7642 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7643 print, verify and generate SPKACs. Based on an original idea from
7644 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7647 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7650 *) Allow the config file extension section to be overwritten on the
7651 command line. Based on an original idea from Massimiliano Pala
7652 <madwolf@comune.modena.it>. The new option is called -extensions
7653 and can be applied to ca, req and x509. Also -reqexts to override
7654 the request extensions in req and -crlexts to override the crl extensions
7658 *) Add new feature to the SPKAC handling in ca. Now you can include
7659 the same field multiple times by preceding it by "XXXX." for example:
7662 this is the same syntax as used in the req config file.
7665 *) Allow certificate extensions to be added to certificate requests. These
7666 are specified in a 'req_extensions' option of the req section of the
7667 config file. They can be printed out with the -text option to req but
7668 are otherwise ignored at present.
7671 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7672 data read consists of only the final block it would not decrypted because
7673 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7674 A misplaced 'break' also meant the decrypted final block might not be
7675 copied until the next read.
7678 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7679 a few extra parameters to the DH structure: these will be useful if
7680 for example we want the value of 'q' or implement X9.42 DH.
7683 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7684 provides hooks that allow the default DSA functions or functions on a
7685 "per key" basis to be replaced. This allows hardware acceleration and
7686 hardware key storage to be handled without major modification to the
7687 library. Also added low level modexp hooks and CRYPTO_EX structure and
7688 associated functions.
7691 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7692 as "read only": it can't be written to and the buffer it points to will
7693 not be freed. Reading from a read only BIO is much more efficient than
7694 a normal memory BIO. This was added because there are several times when
7695 an area of memory needs to be read from a BIO. The previous method was
7696 to create a memory BIO and write the data to it, this results in two
7697 copies of the data and an O(n^2) reading algorithm. There is a new
7698 function BIO_new_mem_buf() which creates a read only memory BIO from
7699 an area of memory. Also modified the PKCS#7 routines to use read only
7703 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7704 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7705 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7706 but a retry condition occured while trying to read the rest.
7709 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7710 NID_pkcs7_encrypted by default: this was wrong since this should almost
7711 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7712 the encrypted data type: this is a more sensible place to put it and it
7713 allows the PKCS#12 code to be tidied up that duplicated this
7717 *) Changed obj_dat.pl script so it takes its input and output files on
7718 the command line. This should avoid shell escape redirection problems
7722 *) Initial support for certificate extension requests, these are included
7723 in things like Xenroll certificate requests. Included functions to allow
7724 extensions to be obtained and added.
7727 *) -crlf option to s_client and s_server for sending newlines as
7728 CRLF (as required by many protocols).
7731 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7733 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7734 [Ralf S. Engelschall]
7736 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7737 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7739 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7743 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7744 DH parameters/keys (q is lost during that conversion, but the resulting
7745 DH parameters contain its length).
7747 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7748 much faster than DH_generate_parameters (which creates parameters
7749 where p = 2*q + 1), and also the smaller q makes DH computations
7750 much more efficient (160-bit exponentiation instead of 1024-bit
7751 exponentiation); so this provides a convenient way to support DHE
7752 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7753 utter importance to use
7754 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7756 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7757 when such DH parameters are used, because otherwise small subgroup
7758 attacks may become possible!
7761 *) Avoid memory leak in i2d_DHparams.
7764 *) Allow the -k option to be used more than once in the enc program:
7765 this allows the same encrypted message to be read by multiple recipients.
7768 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7769 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7770 it will always use the numerical form of the OID, even if it has a short
7774 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7775 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7776 otherwise bn_mod_exp was called. In the case of hardware keys for example
7777 no private key components need be present and it might store extra data
7778 in the RSA structure, which cannot be accessed from bn_mod_exp.
7779 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7780 private key operations.
7783 *) Added support for SPARC Linux.
7786 *) pem_password_cb function type incompatibly changed from
7787 typedef int pem_password_cb(char *buf, int size, int rwflag);
7789 ....(char *buf, int size, int rwflag, void *userdata);
7790 so that applications can pass data to their callbacks:
7791 The PEM[_ASN1]_{read,write}... functions and macros now take an
7792 additional void * argument, which is just handed through whenever
7793 the password callback is called.
7794 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7796 New function SSL_CTX_set_default_passwd_cb_userdata.
7798 Compatibility note: As many C implementations push function arguments
7799 onto the stack in reverse order, the new library version is likely to
7800 interoperate with programs that have been compiled with the old
7801 pem_password_cb definition (PEM_whatever takes some data that
7802 happens to be on the stack as its last argument, and the callback
7803 just ignores this garbage); but there is no guarantee whatsoever that
7806 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7807 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7808 problems not only on Windows, but also on some Unix platforms.
7809 To avoid problematic command lines, these definitions are now in an
7810 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7811 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7814 *) MIPS III/IV assembler module is reimplemented.
7817 *) More DES library cleanups: remove references to srand/rand and
7818 delete an unused file.
7821 *) Add support for the the free Netwide assembler (NASM) under Win32,
7822 since not many people have MASM (ml) and it can be hard to obtain.
7823 This is currently experimental but it seems to work OK and pass all
7824 the tests. Check out INSTALL.W32 for info.
7827 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7828 without temporary keys kept an extra copy of the server key,
7829 and connections with temporary keys did not free everything in case
7833 *) New function RSA_check_key and new openssl rsa option -check
7834 for verifying the consistency of RSA keys.
7835 [Ulf Moeller, Bodo Moeller]
7837 *) Various changes to make Win32 compile work:
7838 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7839 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7840 comparison" warnings.
7841 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7844 *) Add a debugging option to PKCS#5 v2 key generation function: when
7845 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7846 derived keys are printed to stderr.
7849 *) Copy the flags in ASN1_STRING_dup().
7850 [Roman E. Pavlov <pre@mo.msk.ru>]
7852 *) The x509 application mishandled signing requests containing DSA
7853 keys when the signing key was also DSA and the parameters didn't match.
7855 It was supposed to omit the parameters when they matched the signing key:
7856 the verifying software was then supposed to automatically use the CA's
7857 parameters if they were absent from the end user certificate.
7859 Omitting parameters is no longer recommended. The test was also
7860 the wrong way round! This was probably due to unusual behaviour in
7861 EVP_cmp_parameters() which returns 1 if the parameters match.
7862 This meant that parameters were omitted when they *didn't* match and
7863 the certificate was useless. Certificates signed with 'ca' didn't have
7865 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7867 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7868 The interface is as follows:
7869 Applications can use
7870 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7871 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7872 "off" is now the default.
7873 The library internally uses
7874 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7875 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7876 to disable memory-checking temporarily.
7878 Some inconsistent states that previously were possible (and were
7879 even the default) are now avoided.
7881 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7882 with each memory chunk allocated; this is occasionally more helpful
7883 than just having a counter.
7885 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7887 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7891 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7892 which largely parallels "options", but is for changing API behaviour,
7893 whereas "options" are about protocol behaviour.
7894 Initial "mode" flags are:
7896 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7897 a single record has been written.
7898 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7899 retries use the same buffer location.
7900 (But all of the contents must be
7904 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7907 *) Fix problems with no-hmac etc.
7908 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7910 *) New functions RSA_get_default_method(), RSA_set_method() and
7911 RSA_get_method(). These allows replacement of RSA_METHODs without having
7912 to mess around with the internals of an RSA structure.
7915 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7916 Also really enable memory leak checks in openssl.c and in some
7918 [Chad C. Mulligan, Bodo Moeller]
7920 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7921 up the length of negative integers. This has now been simplified to just
7922 store the length when it is first determined and use it later, rather
7923 than trying to keep track of where data is copied and updating it to
7925 [Steve Henson, reported by Brien Wheeler
7926 <bwheeler@authentica-security.com>]
7928 *) Add a new function PKCS7_signatureVerify. This allows the verification
7929 of a PKCS#7 signature but with the signing certificate passed to the
7930 function itself. This contrasts with PKCS7_dataVerify which assumes the
7931 certificate is present in the PKCS#7 structure. This isn't always the
7932 case: certificates can be omitted from a PKCS#7 structure and be
7933 distributed by "out of band" means (such as a certificate database).
7936 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7937 function prototypes in pem.h, also change util/mkdef.pl to add the
7938 necessary function names.
7941 *) mk1mf.pl (used by Windows builds) did not properly read the
7942 options set by Configure in the top level Makefile, and Configure
7943 was not even able to write more than one option correctly.
7944 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7947 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7948 file to be loaded from a BIO or FILE pointer. The BIO version will
7949 for example allow memory BIOs to contain config info.
7952 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7953 Whoever hopes to achieve shared-library compatibility across versions
7954 must use this, not the compile-time macro.
7955 (Exercise 0.9.4: Which is the minimum library version required by
7957 Note: All this applies only to multi-threaded programs, others don't
7961 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7962 through a BIO pair triggered the default case, i.e.
7963 SSLerr(...,SSL_R_UNKNOWN_STATE).
7966 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7967 can use the SSL library even if none of the specific BIOs is
7971 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7972 for the encoded length.
7973 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7975 *) Add initial documentation of the X509V3 functions.
7978 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7979 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7980 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7981 secure PKCS#8 private key format with a high iteration count.
7984 *) Fix determination of Perl interpreter: A perl or perl5
7985 _directory_ in $PATH was also accepted as the interpreter.
7986 [Ralf S. Engelschall]
7988 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7989 wrong with it but it was very old and did things like calling
7990 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7994 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7995 to use the new extension code.
7998 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7999 with macros. This should make it easier to change their form, add extra
8000 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8004 *) Add to configuration table a new entry that can specify an alternative
8005 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8006 according to Mark Crispin <MRC@Panda.COM>.
8010 *) DES CBC did not update the IV. Weird.
8013 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8014 Changing the behaviour of the former might break existing programs --
8015 where IV updating is needed, des_ncbc_encrypt can be used.
8018 *) When bntest is run from "make test" it drives bc to check its
8019 calculations, as well as internally checking them. If an internal check
8020 fails, it needs to cause bc to give a non-zero result or make test carries
8021 on without noticing the failure. Fixed.
8024 *) DES library cleanups.
8027 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8028 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8029 ciphers. NOTE: although the key derivation function has been verified
8030 against some published test vectors it has not been extensively tested
8031 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8035 *) Instead of "mkdir -p", which is not fully portable, use new
8036 Perl script "util/mkdir-p.pl".
8039 *) Rewrite the way password based encryption (PBE) is handled. It used to
8040 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8041 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8042 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8043 the 'parameter' field of the AlgorithmIdentifier is passed to the
8044 underlying key generation function so it must do its own ASN1 parsing.
8045 This has also changed the EVP_PBE_CipherInit() function which now has a
8046 'parameter' argument instead of literal salt and iteration count values
8047 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8050 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8051 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8052 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8053 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8054 value was just used as a "magic string" and not used directly its
8055 value doesn't matter.
8058 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8062 *) "linux-sparc64" configuration (ultrapenguin).
8063 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8064 "linux-sparc" configuration.
8065 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8067 *) config now generates no-xxx options for missing ciphers.
8070 *) Support the EBCDIC character set (work in progress).
8071 File ebcdic.c not yet included because it has a different license.
8072 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8074 *) Support BS2000/OSD-POSIX.
8075 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8077 *) Make callbacks for key generation use void * instead of char *.
8080 *) Make S/MIME samples compile (not yet tested).
8083 *) Additional typesafe stacks.
8086 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8090 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8092 *) New configuration variant "sco5-gcc".
8094 *) Updated some demos.
8095 [Sean O Riordain, Wade Scholine]
8097 *) Add missing BIO_free at exit of pkcs12 application.
8100 *) Fix memory leak in conf.c.
8103 *) Updates for Win32 to assembler version of MD5.
8106 *) Set #! path to perl in apps/der_chop to where we found it
8107 instead of using a fixed path.
8110 *) SHA library changes for irix64-mips4-cc.
8113 *) Improvements for VMS support.
8117 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8119 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8120 This also avoids the problems with SC4.2 and unpatched SC5.
8121 [Andy Polyakov <appro@fy.chalmers.se>]
8123 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8124 These are required because of the typesafe stack would otherwise break
8125 existing code. If old code used a structure member which used to be STACK
8126 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8127 sk_num or sk_value it would produce an error because the num, data members
8128 are not present in STACK_OF. Now it just produces a warning. sk_set
8129 replaces the old method of assigning a value to sk_value
8130 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8131 that does this will no longer work (and should use sk_set instead) but
8132 this could be regarded as a "questionable" behaviour anyway.
8135 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8136 correctly handle encrypted S/MIME data.
8139 *) Change type of various DES function arguments from des_cblock
8140 (which means, in function argument declarations, pointer to char)
8141 to des_cblock * (meaning pointer to array with 8 char elements),
8142 which allows the compiler to do more typechecking; it was like
8143 that back in SSLeay, but with lots of ugly casts.
8145 Introduce new type const_des_cblock.
8148 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8149 problems: find RecipientInfo structure that matches recipient certificate
8150 and initialise the ASN1 structures properly based on passed cipher.
8153 *) Belatedly make the BN tests actually check the results.
8156 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8157 to and from BNs: it was completely broken. New compilation option
8158 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8159 key elements as negative integers.
8162 *) Reorganize and speed up MD5.
8163 [Andy Polyakov <appro@fy.chalmers.se>]
8166 [Richard Levitte <richard@levitte.org>]
8168 *) New option -out to asn1parse to allow the parsed structure to be
8169 output to a file. This is most useful when combined with the -strparse
8170 option to examine the output of things like OCTET STRINGS.
8173 *) Make SSL library a little more fool-proof by not requiring any longer
8174 that SSL_set_{accept,connect}_state be called before
8175 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8176 in many applications because usually everything *appeared* to work as
8177 intended anyway -- now it really works as intended).
8180 *) Move openssl.cnf out of lib/.
8183 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8184 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8185 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8186 [Ralf S. Engelschall]
8188 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8189 handle PKCS#7 enveloped data properly.
8190 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8192 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8193 copying pointers. The cert_st handling is changed by this in
8194 various ways (and thus what used to be known as ctx->default_cert
8195 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8196 any longer when s->cert does not give us what we need).
8197 ssl_cert_instantiate becomes obsolete by this change.
8198 As soon as we've got the new code right (possibly it already is?),
8199 we have solved a couple of bugs of the earlier code where s->cert
8200 was used as if it could not have been shared with other SSL structures.
8202 Note that using the SSL API in certain dirty ways now will result
8203 in different behaviour than observed with earlier library versions:
8204 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8205 does not influence s as it used to.
8207 In order to clean up things more thoroughly, inside SSL_SESSION
8208 we don't use CERT any longer, but a new structure SESS_CERT
8209 that holds per-session data (if available); currently, this is
8210 the peer's certificate chain and, for clients, the server's certificate
8211 and temporary key. CERT holds only those values that can have
8212 meaningful defaults in an SSL_CTX.
8215 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8216 from the internal representation. Various PKCS#7 fixes: remove some
8217 evil casts and set the enc_dig_alg field properly based on the signing
8221 *) Allow PKCS#12 password to be set from the command line or the
8222 environment. Let 'ca' get its config file name from the environment
8223 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8227 *) Allow certificate policies extension to use an IA5STRING for the
8228 organization field. This is contrary to the PKIX definition but
8229 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8233 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8234 without disallowing inline assembler and the like for non-pedantic builds.
8237 *) Support Borland C++ builder.
8238 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8243 *) SHA-1 cleanups and performance enhancements.
8244 [Andy Polyakov <appro@fy.chalmers.se>]
8246 *) Sparc v8plus assembler for the bignum library.
8247 [Andy Polyakov <appro@fy.chalmers.se>]
8249 *) Accept any -xxx and +xxx compiler options in Configure.
8252 *) Update HPUX configuration.
8255 *) Add missing sk_<type>_unshift() function to safestack.h
8256 [Ralf S. Engelschall]
8258 *) New function SSL_CTX_use_certificate_chain_file that sets the
8259 "extra_cert"s in addition to the certificate. (This makes sense
8260 only for "PEM" format files, as chains as a whole are not
8264 *) Support verify_depth from the SSL API.
8265 x509_vfy.c had what can be considered an off-by-one-error:
8266 Its depth (which was not part of the external interface)
8267 was actually counting the number of certificates in a chain;
8268 now it really counts the depth.
8271 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8272 instead of X509err, which often resulted in confusing error
8273 messages since the error codes are not globally unique
8274 (e.g. an alleged error in ssl3_accept when a certificate
8275 didn't match the private key).
8277 *) New function SSL_CTX_set_session_id_context that allows to set a default
8278 value (so that you don't need SSL_set_session_id_context for each
8279 connection using the SSL_CTX).
8282 *) OAEP decoding bug fix.
8285 *) Support INSTALL_PREFIX for package builders, as proposed by
8289 *) New Configure options "threads" and "no-threads". For systems
8290 where the proper compiler options are known (currently Solaris
8291 and Linux), "threads" is the default.
8294 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8297 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8298 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8299 such as /usr/local/bin.
8302 *) "make linux-shared" to build shared libraries.
8303 [Niels Poppe <niels@netbox.org>]
8305 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8308 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8309 extension adding in x509 utility.
8312 *) Remove NOPROTO sections and error code comments.
8315 *) Partial rewrite of the DEF file generator to now parse the ANSI
8319 *) New Configure options --prefix=DIR and --openssldir=DIR.
8322 *) Complete rewrite of the error code script(s). It is all now handled
8323 by one script at the top level which handles error code gathering,
8324 header rewriting and C source file generation. It should be much better
8325 than the old method: it now uses a modified version of Ulf's parser to
8326 read the ANSI prototypes in all header files (thus the old K&R definitions
8327 aren't needed for error creation any more) and do a better job of
8328 translating function codes into names. The old 'ASN1 error code imbedded
8329 in a comment' is no longer necessary and it doesn't use .err files which
8330 have now been deleted. Also the error code call doesn't have to appear all
8331 on one line (which resulted in some large lines...).
8334 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8337 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8338 0 (which usually indicates a closed connection), but continue reading.
8341 *) Fix some race conditions.
8344 *) Add support for CRL distribution points extension. Add Certificate
8345 Policies and CRL distribution points documentation.
8348 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8351 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8352 8 of keying material. Merlin has also confirmed interop with this fix
8353 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8354 [Merlin Hughes <merlin@baltimore.ie>]
8356 *) Fix lots of warnings.
8357 [Richard Levitte <levitte@stacken.kth.se>]
8359 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8360 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8361 [Richard Levitte <levitte@stacken.kth.se>]
8363 *) Fix problems with sizeof(long) == 8.
8364 [Andy Polyakov <appro@fy.chalmers.se>]
8366 *) Change functions to ANSI C.
8369 *) Fix typos in error codes.
8370 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8372 *) Remove defunct assembler files from Configure.
8375 *) SPARC v8 assembler BIGNUM implementation.
8376 [Andy Polyakov <appro@fy.chalmers.se>]
8378 *) Support for Certificate Policies extension: both print and set.
8379 Various additions to support the r2i method this uses.
8382 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8383 return a const string when you are expecting an allocated buffer.
8386 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8387 types DirectoryString and DisplayText.
8390 *) Add code to allow r2i extensions to access the configuration database,
8391 add an LHASH database driver and add several ctx helper functions.
8394 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8395 fail when they extended the size of a BIGNUM.
8398 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8399 support typesafe stack.
8402 *) Fix typo in SSL_[gs]et_options().
8403 [Nils Frostberg <nils@medcom.se>]
8405 *) Delete various functions and files that belonged to the (now obsolete)
8406 old X509V3 handling code.
8409 *) New Configure option "rsaref".
8412 *) Don't auto-generate pem.h.
8415 *) Introduce type-safe ASN.1 SETs.
8418 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8419 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8421 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8422 that links with OpenSSL (well at least cause lots of warnings), but fear
8423 not: the conversion is trivial, and it eliminates loads of evil casts. A
8424 few STACKed things have been converted already. Feel free to convert more.
8425 In the fullness of time, I'll do away with the STACK type altogether.
8428 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8429 specified in <certfile> by updating the entry in the index.txt file.
8430 This way one no longer has to edit the index.txt file manually for
8431 revoking a certificate. The -revoke option does the gory details now.
8432 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8434 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8435 `-text' option at all and this way the `-noout -text' combination was
8436 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8437 [Ralf S. Engelschall]
8439 *) Make sure a corresponding plain text error message exists for the
8440 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8441 verify callback function determined that a certificate was revoked.
8442 [Ralf S. Engelschall]
8444 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8445 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8446 all available cipers including rc5, which was forgotten until now.
8447 In order to let the testing shell script know which algorithms
8448 are available, a new (up to now undocumented) command
8449 "openssl list-cipher-commands" is used.
8452 *) Bugfix: s_client occasionally would sleep in select() when
8453 it should have checked SSL_pending() first.
8456 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8457 the raw DSA values prior to ASN.1 encoding.
8460 *) Tweaks to Configure
8461 [Niels Poppe <niels@netbox.org>]
8463 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8467 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8470 *) New config option to avoid instructions that are illegal on the 80386.
8471 The default code is faster, but requires at least a 486.
8474 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8475 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8476 same as SSL2_VERSION anyway.
8479 *) New "-showcerts" option for s_client.
8482 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8483 application. Various cleanups and fixes.
8486 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8487 modify error routines to work internally. Add error codes and PBE init
8488 to library startup routines.
8491 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8492 packing functions to asn1 and evp. Changed function names and error
8493 codes along the way.
8496 *) PKCS12 integration: and so it begins... First of several patches to
8497 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8498 objects to objects.h
8501 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8502 and display support for Thawte strong extranet extension.
8505 *) Add LinuxPPC support.
8506 [Jeff Dubrule <igor@pobox.org>]
8508 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8509 bn_div_words in alpha.s.
8510 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8512 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8513 OAEP isn't supported when OpenSSL is built with RSAref.
8514 [Ulf Moeller <ulf@fitug.de>]
8516 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8517 so they no longer are missing under -DNOPROTO.
8518 [Soren S. Jorvang <soren@t.dk>]
8521 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8523 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8524 doesn't work when the session is reused. Coming soon!
8527 *) Fix a security hole, that allows sessions to be reused in the wrong
8528 context thus bypassing client cert protection! All software that uses
8529 client certs and session caches in multiple contexts NEEDS PATCHING to
8530 allow session reuse! A fuller solution is in the works.
8531 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8533 *) Some more source tree cleanups (removed obsolete files
8534 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8535 permission on "config" script to be executable) and a fix for the INSTALL
8537 [Ulf Moeller <ulf@fitug.de>]
8539 *) Remove some legacy and erroneous uses of malloc, free instead of
8541 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8543 *) Make rsa_oaep_test return non-zero on error.
8544 [Ulf Moeller <ulf@fitug.de>]
8546 *) Add support for native Solaris shared libraries. Configure
8547 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8548 if someone would make that last step automatic.
8549 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8551 *) ctx_size was not built with the right compiler during "make links". Fixed.
8554 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8555 except NULL ciphers". This means the default cipher list will no longer
8556 enable NULL ciphers. They need to be specifically enabled e.g. with
8557 the string "DEFAULT:eNULL".
8560 *) Fix to RSA private encryption routines: if p < q then it would
8561 occasionally produce an invalid result. This will only happen with
8562 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8565 *) Be less restrictive and allow also `perl util/perlpath.pl
8566 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8567 because this way one can also use an interpreter named `perl5' (which is
8568 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8569 installed as `perl').
8570 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8572 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8573 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8575 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8576 advapi32.lib to Win32 build and change the pem test comparision
8577 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8578 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8579 and crypto/des/ede_cbcm_enc.c.
8582 *) DES quad checksum was broken on big-endian architectures. Fixed.
8585 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8586 Win32 test batch file so it (might) work again. The Win32 test batch file
8587 is horrible: I feel ill....
8590 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8591 in e_os.h. Audit of header files to check ANSI and non ANSI
8592 sections: 10 functions were absent from non ANSI section and not exported
8593 from Windows DLLs. Fixed up libeay.num for new functions.
8596 *) Make `openssl version' output lines consistent.
8597 [Ralf S. Engelschall]
8599 *) Fix Win32 symbol export lists for BIO functions: Added
8600 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8601 to ms/libeay{16,32}.def.
8602 [Ralf S. Engelschall]
8604 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8605 fine under Unix and passes some trivial tests I've now added. But the
8606 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8607 added to make sure no one expects that this stuff really works in the
8608 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8609 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8611 [Ralf S. Engelschall]
8613 *) Fix the generation of two part addresses in perl.
8614 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8616 *) Add config entry for Linux on MIPS.
8617 [John Tobey <jtobey@channel1.com>]
8619 *) Make links whenever Configure is run, unless we are on Windoze.
8622 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8623 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8627 *) Add a useful kludge to allow package maintainers to specify compiler and
8628 other platforms details on the command line without having to patch the
8629 Configure script everytime: One now can use ``perl Configure
8630 <id>:<details>'', i.e. platform ids are allowed to have details appended
8631 to them (seperated by colons). This is treated as there would be a static
8632 pre-configured entry in Configure's %table under key <id> with value
8633 <details> and ``perl Configure <id>'' is called. So, when you want to
8634 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8635 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8636 now, which overrides the FreeBSD-elf entry on-the-fly.
8637 [Ralf S. Engelschall]
8639 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8642 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8643 on the `perl Configure ...' command line. This way one can compile
8644 OpenSSL libraries with Position Independent Code (PIC) which is needed
8645 for linking it into DSOs.
8646 [Ralf S. Engelschall]
8648 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8652 *) Cleaned up the LICENSE document: The official contact for any license
8653 questions now is the OpenSSL core team under openssl-core@openssl.org.
8654 And add a paragraph about the dual-license situation to make sure people
8655 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8656 to the OpenSSL toolkit.
8657 [Ralf S. Engelschall]
8659 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8660 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8661 Additonally cleaned up the `make links' target: Remove unnecessary
8662 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8663 to speed processing and no longer clutter the display with confusing
8664 stuff. Instead only the actually done links are displayed.
8665 [Ralf S. Engelschall]
8667 *) Permit null encryption ciphersuites, used for authentication only. It used
8668 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8669 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8673 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8674 signed attributes when verifying signatures (this would break them),
8675 the detached data encoding was wrong and public keys obtained using
8676 X509_get_pubkey() weren't freed.
8679 *) Add text documentation for the BUFFER functions. Also added a work around
8680 to a Win95 console bug. This was triggered by the password read stuff: the
8681 last character typed gets carried over to the next fread(). If you were
8682 generating a new cert request using 'req' for example then the last
8683 character of the passphrase would be CR which would then enter the first
8687 *) Added the new `Includes OpenSSL Cryptography Software' button as
8688 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8689 button and can be used by applications based on OpenSSL to show the
8690 relationship to the OpenSSL project.
8691 [Ralf S. Engelschall]
8693 *) Remove confusing variables in function signatures in files
8694 ssl/ssl_lib.c and ssl/ssl.h.
8695 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8697 *) Don't install bss_file.c under PREFIX/include/
8698 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8700 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8701 functions that return function pointers and has support for NT specific
8702 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8703 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8704 unsigned to signed types: this was killing the Win32 compile.
8707 *) Add new certificate file to stack functions,
8708 SSL_add_dir_cert_subjects_to_stack() and
8709 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8710 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8711 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8712 This means that Apache-SSL and similar packages don't have to mess around
8713 to add as many CAs as they want to the preferred list.
8716 *) Experiment with doxygen documentation. Currently only partially applied to
8718 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8719 openssl.doxy as the configuration file.
8722 *) Get rid of remaining C++-style comments which strict C compilers hate.
8723 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8725 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8726 compiled in by default: it has problems with large keys.
8729 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8730 DH private keys and/or callback functions which directly correspond to
8731 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8732 is needed for applications which have to configure certificates on a
8733 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8735 For the RSA certificate situation is makes no difference, but
8736 for the DSA certificate situation this fixes the "no shared cipher"
8737 problem where the OpenSSL cipher selection procedure failed because the
8738 temporary keys were not overtaken from the context and the API provided
8739 no way to reconfigure them.
8740 The new functions now let applications reconfigure the stuff and they
8741 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8742 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8743 non-public-API function ssl_cert_instantiate() is used as a helper
8744 function and also to reduce code redundancy inside ssl_rsa.c.
8745 [Ralf S. Engelschall]
8747 *) Move s_server -dcert and -dkey options out of the undocumented feature
8748 area because they are useful for the DSA situation and should be
8749 recognized by the users.
8750 [Ralf S. Engelschall]
8752 *) Fix the cipher decision scheme for export ciphers: the export bits are
8753 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8754 SSL_EXP_MASK. So, the original variable has to be used instead of the
8755 already masked variable.
8756 [Richard Levitte <levitte@stacken.kth.se>]
8758 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8759 [Richard Levitte <levitte@stacken.kth.se>]
8761 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8762 from `int' to `unsigned int' because it's a length and initialized by
8763 EVP_DigestFinal() which expects an `unsigned int *'.
8764 [Richard Levitte <levitte@stacken.kth.se>]
8766 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8767 script. Instead use the usual Shell->Perl transition trick.
8768 [Ralf S. Engelschall]
8770 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8771 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8772 -noout -modulus' as it's already the case for `openssl rsa -noout
8773 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8774 currently the public key is printed (a decision which was already done by
8775 `openssl dsa -modulus' in the past) which serves a similar purpose.
8776 Additionally the NO_RSA no longer completely removes the whole -modulus
8777 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8779 [Ralf S. Engelschall]
8781 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8782 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8783 [Arne Ansper <arne@ats.cyber.ee>]
8785 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8786 to be added. Now both 'req' and 'ca' can use new objects defined in the
8790 *) Add cool BIO that does syslog (or event log on NT).
8791 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8793 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8794 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8795 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8796 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8799 *) Add preliminary config info for new extension code.
8802 *) Make RSA_NO_PADDING really use no padding.
8803 [Ulf Moeller <ulf@fitug.de>]
8805 *) Generate errors when private/public key check is done.
8808 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8809 for some CRL extensions and new objects added.
8812 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8813 key usage extension and fuller support for authority key id.
8816 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8817 padding method for RSA, which is recommended for new applications in PKCS
8818 #1 v2.0 (RFC 2437, October 1998).
8819 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8820 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8821 against Bleichbacher's attack on RSA.
8822 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8825 *) Updates to the new SSL compression code
8826 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8828 *) Fix so that the version number in the master secret, when passed
8829 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8830 (because the server will not accept higher), that the version number
8831 is 0x03,0x01, not 0x03,0x00
8832 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8834 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8835 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8836 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8839 *) Support for RAW extensions where an arbitrary extension can be
8840 created by including its DER encoding. See apps/openssl.cnf for
8844 *) Make sure latest Perl versions don't interpret some generated C array
8845 code as Perl array code in the crypto/err/err_genc.pl script.
8846 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8848 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8849 not many people have the assembler. Various Win32 compilation fixes and
8850 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8854 *) Modify configure script 'Configure' to automatically create crypto/date.h
8855 file under Win32 and also build pem.h from pem.org. New script
8856 util/mkfiles.pl to create the MINFO file on environments that can't do a
8857 'make files': perl util/mkfiles.pl >MINFO should work.
8860 *) Major rework of DES function declarations, in the pursuit of correctness
8861 and purity. As a result, many evil casts evaporated, and some weirdness,
8862 too. You may find this causes warnings in your code. Zapping your evil
8863 casts will probably fix them. Mostly.
8866 *) Fix for a typo in asn1.h. Bug fix to object creation script
8867 obj_dat.pl. It considered a zero in an object definition to mean
8868 "end of object": none of the objects in objects.h have any zeros
8869 so it wasn't spotted.
8870 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8872 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8873 Masking (CBCM). In the absence of test vectors, the best I have been able
8874 to do is check that the decrypt undoes the encrypt, so far. Send me test
8875 vectors if you have them.
8878 *) Correct calculation of key length for export ciphers (too much space was
8879 allocated for null ciphers). This has not been tested!
8882 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8883 message is now correct (it understands "crypto" and "ssl" on its
8884 command line). There is also now an "update" option. This will update
8885 the util/ssleay.num and util/libeay.num files with any new functions.
8887 perl util/mkdef.pl crypto ssl update
8888 it will update them.
8891 *) Overhauled the Perl interface (perl/*):
8892 - ported BN stuff to OpenSSL's different BN library
8893 - made the perl/ source tree CVS-aware
8894 - renamed the package from SSLeay to OpenSSL (the files still contain
8895 their history because I've copied them in the repository)
8896 - removed obsolete files (the test scripts will be replaced
8897 by better Test::Harness variants in the future)
8898 [Ralf S. Engelschall]
8900 *) First cut for a very conservative source tree cleanup:
8901 1. merge various obsolete readme texts into doc/ssleay.txt
8902 where we collect the old documents and readme texts.
8903 2. remove the first part of files where I'm already sure that we no
8904 longer need them because of three reasons: either they are just temporary
8905 files which were left by Eric or they are preserved original files where
8906 I've verified that the diff is also available in the CVS via "cvs diff
8907 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8908 the crypto/md/ stuff).
8909 [Ralf S. Engelschall]
8911 *) More extension code. Incomplete support for subject and issuer alt
8912 name, issuer and authority key id. Change the i2v function parameters
8913 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8914 what that's for :-) Fix to ASN1 macro which messed up
8915 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8918 *) Preliminary support for ENUMERATED type. This is largely copied from the
8922 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8923 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8925 *) Make sure `make rehash' target really finds the `openssl' program.
8926 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8928 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8929 like to hear about it if this slows down other processors.
8932 *) Add CygWin32 platform information to Configure script.
8933 [Alan Batie <batie@aahz.jf.intel.com>]
8935 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8936 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8938 *) New program nseq to manipulate netscape certificate sequences
8941 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8945 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8946 but the BN code had some problems that would cause failures when
8947 doing certificate verification and some other functions.
8948 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8950 *) Add ASN1 and PEM code to support netscape certificate sequences.
8953 *) Add ASN1 and PEM code to support netscape certificate sequences.
8956 *) Add several PKIX and private extended key usage OIDs.
8959 *) Modify the 'ca' program to handle the new extension code. Modify
8960 openssl.cnf for new extension format, add comments.
8963 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8964 and add a sample to openssl.cnf so req -x509 now adds appropriate
8968 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8969 error code, add initial support to X509_print() and x509 application.
8972 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8973 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8974 stuff is currently isolated and isn't even compiled yet.
8977 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8978 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8979 Removed the versions check from X509 routines when loading extensions:
8980 this allows certain broken certificates that don't set the version
8981 properly to be processed.
8984 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8985 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8986 can still be regenerated with "make depend".
8989 *) Spelling mistake in C version of CAST-128.
8990 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8992 *) Changes to the error generation code. The perl script err-code.pl
8993 now reads in the old error codes and retains the old numbers, only
8994 adding new ones if necessary. It also only changes the .err files if new
8995 codes are added. The makefiles have been modified to only insert errors
8996 when needed (to avoid needlessly modifying header files). This is done
8997 by only inserting errors if the .err file is newer than the auto generated
8998 C file. To rebuild all the error codes from scratch (the old behaviour)
8999 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9000 or delete all the .err files.
9003 *) CAST-128 was incorrectly implemented for short keys. The C version has
9004 been fixed, but is untested. The assembler versions are also fixed, but
9005 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9006 to regenerate it if needed.
9007 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9008 Hagino <itojun@kame.net>]
9010 *) File was opened incorrectly in randfile.c.
9011 [Ulf Möller <ulf@fitug.de>]
9013 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9014 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9015 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9016 al: it's just almost always a UTCTime. Note this patch adds new error
9017 codes so do a "make errors" if there are problems.
9020 *) Correct Linux 1 recognition in config.
9021 [Ulf Möller <ulf@fitug.de>]
9023 *) Remove pointless MD5 hash when using DSA keys in ca.
9024 [Anonymous <nobody@replay.com>]
9026 *) Generate an error if given an empty string as a cert directory. Also
9027 generate an error if handed NULL (previously returned 0 to indicate an
9028 error, but didn't set one).
9029 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9031 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9034 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9035 parameters. This was causing a warning which killed off the Win32 compile.
9038 *) Remove C++ style comments from crypto/bn/bn_local.h.
9039 [Neil Costigan <neil.costigan@celocom.com>]
9041 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9042 based on a text string, looking up short and long names and finally
9043 "dot" format. The "dot" format stuff didn't work. Added new function
9044 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9045 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9046 OID is not part of the table.
9049 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9050 X509_LOOKUP_by_alias().
9053 *) Sort openssl functions by name.
9056 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9057 encryption from sample DSA keys (in case anyone is interested the password
9061 *) Make _all_ *_free functions accept a NULL pointer.
9062 [Frans Heymans <fheymans@isaserver.be>]
9064 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9066 [Anonymous <nobody@replay.com>]
9068 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9069 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9071 *) Don't blow it for numeric -newkey arguments to apps/req.
9072 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9074 *) Temp key "for export" tests were wrong in s3_srvr.c.
9075 [Anonymous <nobody@replay.com>]
9077 *) Add prototype for temp key callback functions
9078 SSL_CTX_set_tmp_{rsa,dh}_callback().
9081 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9082 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9085 *) X509_name_add_entry() freed the wrong thing after an error.
9086 [Arne Ansper <arne@ats.cyber.ee>]
9088 *) rsa_eay.c would attempt to free a NULL context.
9089 [Arne Ansper <arne@ats.cyber.ee>]
9091 *) BIO_s_socket() had a broken should_retry() on Windoze.
9092 [Arne Ansper <arne@ats.cyber.ee>]
9094 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9095 [Arne Ansper <arne@ats.cyber.ee>]
9097 *) Make sure the already existing X509_STORE->depth variable is initialized
9098 in X509_STORE_new(), but document the fact that this variable is still
9099 unused in the certificate verification process.
9100 [Ralf S. Engelschall]
9102 *) Fix the various library and apps files to free up pkeys obtained from
9103 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9106 *) Fix reference counting in X509_PUBKEY_get(). This makes
9107 demos/maurice/example2.c work, amongst others, probably.
9108 [Steve Henson and Ben Laurie]
9110 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9111 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9112 are no longer created. This way we have a single and consistent command
9113 line interface `openssl <command>', similar to `cvs <command>'.
9114 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9116 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9117 BIT STRING wrapper always have zero unused bits.
9120 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9123 *) Make the top-level INSTALL documentation easier to understand.
9126 *) Makefiles updated to exit if an error occurs in a sub-directory
9127 make (including if user presses ^C) [Paul Sutton]
9129 *) Make Montgomery context stuff explicit in RSA data structure.
9132 *) Fix build order of pem and err to allow for generated pem.h.
9135 *) Fix renumbering bug in X509_NAME_delete_entry().
9138 *) Enhanced the err-ins.pl script so it makes the error library number
9139 global and can add a library name. This is needed for external ASN1 and
9140 other error libraries.
9143 *) Fixed sk_insert which never worked properly.
9146 *) Fix ASN1 macros so they can handle indefinite length construted
9147 EXPLICIT tags. Some non standard certificates use these: they can now
9151 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9152 into a single doc/ssleay.txt bundle. This way the information is still
9153 preserved but no longer messes up this directory. Now it's new room for
9154 the new set of documenation files.
9155 [Ralf S. Engelschall]
9157 *) SETs were incorrectly DER encoded. This was a major pain, because they
9158 shared code with SEQUENCEs, which aren't coded the same. This means that
9159 almost everything to do with SETs or SEQUENCEs has either changed name or
9160 number of arguments.
9161 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9163 *) Fix test data to work with the above.
9166 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9167 was already fixed by Eric for 0.9.1 it seems.
9168 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9170 *) Autodetect FreeBSD3.
9173 *) Fix various bugs in Configure. This affects the following platforms:
9177 unixware-2.0-pentium
9181 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9182 before they are needed.
9185 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9189 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9191 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9192 changed SSLeay to OpenSSL in version strings.
9193 [Ralf S. Engelschall]
9195 *) Some fixups to the top-level documents.
9198 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9199 because the symlink to include/ was missing.
9200 [Ralf S. Engelschall]
9202 *) Incorporated the popular no-RSA/DSA-only patches
9203 which allow to compile a RSA-free SSLeay.
9204 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9206 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9207 when "ssleay" is still not found.
9208 [Ralf S. Engelschall]
9210 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9211 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9213 *) Updated the README file.
9214 [Ralf S. Engelschall]
9216 *) Added various .cvsignore files in the CVS repository subdirs
9217 to make a "cvs update" really silent.
9218 [Ralf S. Engelschall]
9220 *) Recompiled the error-definition header files and added
9221 missing symbols to the Win32 linker tables.
9222 [Ralf S. Engelschall]
9224 *) Cleaned up the top-level documents;
9225 o new files: CHANGES and LICENSE
9226 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9227 o merged COPYRIGHT into LICENSE
9228 o removed obsolete TODO file
9229 o renamed MICROSOFT to INSTALL.W32
9230 [Ralf S. Engelschall]
9232 *) Removed dummy files from the 0.9.1b source tree:
9233 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9234 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9235 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9236 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9237 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9238 [Ralf S. Engelschall]
9240 *) Added various platform portability fixes.
9243 *) The Genesis of the OpenSSL rpject:
9244 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9245 Young and Tim J. Hudson created while they were working for C2Net until
9247 [The OpenSSL Project]
9250 Changes between 0.9.0b and 0.9.1b [not released]
9252 *) Updated a few CA certificates under certs/
9255 *) Changed some BIGNUM api stuff.
9258 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9259 DGUX x86, Linux Alpha, etc.
9262 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9263 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9267 *) Add -strparse option to asn1pars program which parses nested
9269 [Dr Stephen Henson <shenson@bigfoot.com>]
9271 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9274 *) DSA fix for "ca" program.
9277 *) Added "-genkey" option to "dsaparam" program.
9280 *) Added RIPE MD160 (rmd160) message digest.
9283 *) Added -a (all) option to "ssleay version" command.
9286 *) Added PLATFORM define which is the id given to Configure.
9289 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9292 *) Extended the ASN.1 parser routines.
9295 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9298 *) Added a BN_CTX to the BN library.
9301 *) Fixed the weak key values in DES library
9304 *) Changed API in EVP library for cipher aliases.
9307 *) Added support for RC2/64bit cipher.
9310 *) Converted the lhash library to the crypto/mem.c functions.
9313 *) Added more recognized ASN.1 object ids.
9316 *) Added more RSA padding checks for SSL/TLS.
9319 *) Added BIO proxy/filter functionality.
9322 *) Added extra_certs to SSL_CTX which can be used
9323 send extra CA certificates to the client in the CA cert chain sending
9324 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9327 *) Now Fortezza is denied in the authentication phase because
9328 this is key exchange mechanism is not supported by SSLeay at all.
9331 *) Additional PKCS1 checks.
9334 *) Support the string "TLSv1" for all TLS v1 ciphers.
9337 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9338 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9341 *) Fixed a few memory leaks.
9344 *) Fixed various code and comment typos.
9347 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9348 bytes sent in the client random.
9349 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob