5 Changes between 0.9.8k and 1.0 [xx XXX xxxx]
7 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
8 needlessly dereferenced structures, used obsolete functions and
9 didn't handle all updated verify codes correctly.
12 *) Delete MD2 from algorithm tables. This follows the recommendation in
13 several standards that it is not used in new applications due to
14 several cryptographic weaknesses. The algorithm is also disabled in
15 the default configuration.
18 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
19 indicate the initial BIO being pushed or popped. This makes it possible
20 to determine whether the BIO is the one explicitly called or as a result
21 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
22 it handles reference counts correctly and doesn't zero out the I/O bio
23 when it is not being explicitly popped. WARNING: applications which
24 included workarounds for the old buggy behaviour will need to be modified
25 or they could free up already freed BIOs.
28 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
29 OPENSSL_asc2uni the original names were too generic and cause name
31 [Guenter <lists@gknw.net>]
33 *) Add ECDHE and PSK support to DTLS.
34 [Michael Tuexen <tuexen@fh-muenster.de>]
36 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
40 *) Add "missing" function EVP_MD_flags() (without this the only way to
41 retrieve a digest flags is by accessing the structure directly. Update
42 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
43 or cipher is registered as in the "from" argument. Print out all
44 registered digests in the dgst usage message instead of manually
45 attempting to work them out.
48 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
49 this allows the use of compression and extensions. Change default cipher
50 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
51 by default unless an application cipher string requests it.
54 *) Alter match criteria in PKCS12_parse(). It used to try to use local
55 key ids to find matching certificates and keys but some PKCS#12 files
56 don't follow the (somewhat unwritten) rules and this strategy fails.
57 Now just gather all certificates together and the first private key
58 then look for the first certificate that matches the key.
61 *) Support use of registered digest and cipher names for dgst and cipher
62 commands instead of having to add each one as a special case. So now
69 openssl dgst -sha256 foo
71 and this works for ENGINE based algorithms too.
75 *) Update Gost ENGINE to support parameter files.
76 [Victor B. Wagner <vitus@cryptocom.ru>]
78 *) Support GeneralizedTime in ca utility.
79 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
81 *) Enhance the hash format used for certificate directory links. The new
82 form uses the canonical encoding (meaning equivalent names will work
83 even if they aren't identical) and uses SHA1 instead of MD5. This form
84 is incompatible with the older format and as a result c_rehash should
85 be used to rebuild symbolic links.
88 *) Make PKCS#8 the default write format for private keys, replacing the
89 traditional format. This form is standardised, more secure and doesn't
90 include an implicit MD5 dependency.
93 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
94 committed to OpenSSL should pass this lot as a minimum.
97 *) Add session ticket override functionality for use by EAP-FAST.
98 [Jouni Malinen <j@w1.fi>]
100 *) Modify HMAC functions to return a value. Since these can be implemented
101 in an ENGINE errors can occur.
104 *) Type-checked OBJ_bsearch_ex.
107 *) Type-checked OBJ_bsearch. Also some constification necessitated
108 by type-checking. Still to come: TXT_DB, bsearch(?),
109 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
113 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
114 seconds to a tm structure directly, instead of going through OS
115 specific date routines. This avoids any issues with OS routines such
116 as the year 2038 bug. New *_adj() functions for ASN1 time structures
117 and X509_time_adj_ex() to cover the extended range. The existing
118 X509_time_adj() is still usable and will no longer have any date issues.
121 *) Delta CRL support. New use deltas option which will attempt to locate
122 and search any appropriate delta CRLs available.
124 This work was sponsored by Google.
127 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
128 code and add additional score elements. Validate alternate CRL paths
129 as part of the CRL checking and indicate a new error "CRL path validation
130 error" in this case. Applications wanting additional details can use
131 the verify callback and check the new "parent" field. If this is not
132 NULL CRL path validation is taking place. Existing applications wont
133 see this because it requires extended CRL support which is off by
136 This work was sponsored by Google.
139 *) Support for freshest CRL extension.
141 This work was sponsored by Google.
144 *) Initial indirect CRL support. Currently only supported in the CRLs
145 passed directly and not via lookup. Process certificate issuer
146 CRL entry extension and lookup CRL entries by bother issuer name
147 and serial number. Check and process CRL issuer entry in IDP extension.
149 This work was sponsored by Google.
152 *) Add support for distinct certificate and CRL paths. The CRL issuer
153 certificate is validated separately in this case. Only enabled if
154 an extended CRL support flag is set: this flag will enable additional
155 CRL functionality in future.
157 This work was sponsored by Google.
160 *) Add support for policy mappings extension.
162 This work was sponsored by Google.
165 *) Fixes to pathlength constraint, self issued certificate handling,
166 policy processing to align with RFC3280 and PKITS tests.
168 This work was sponsored by Google.
171 *) Support for name constraints certificate extension. DN, email, DNS
172 and URI types are currently supported.
174 This work was sponsored by Google.
177 *) To cater for systems that provide a pointer-based thread ID rather
178 than numeric, deprecate the current numeric thread ID mechanism and
179 replace it with a structure and associated callback type. This
180 mechanism allows a numeric "hash" to be extracted from a thread ID in
181 either case, and on platforms where pointers are larger than 'long',
182 mixing is done to help ensure the numeric 'hash' is usable even if it
183 can't be guaranteed unique. The default mechanism is to use "&errno"
184 as a pointer-based thread ID to distinguish between threads.
186 Applications that want to provide their own thread IDs should now use
187 CRYPTO_THREADID_set_callback() to register a callback that will call
188 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
190 Note that ERR_remove_state() is now deprecated, because it is tied
191 to the assumption that thread IDs are numeric. ERR_remove_state(0)
192 to free the current thread's error state should be replaced by
193 ERR_remove_thread_state(NULL).
195 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
196 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
197 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
198 application was previously providing a numeric thread callback that
199 was inappropriate for distinguishing threads, then uniqueness might
200 have been obtained with &errno that happened immediately in the
201 intermediate development versions of OpenSSL; this is no longer the
202 case, the numeric thread callback will now override the automatic use
204 [Geoff Thorpe, with help from Bodo Moeller]
206 *) Initial support for different CRL issuing certificates. This covers a
207 simple case where the self issued certificates in the chain exist and
208 the real CRL issuer is higher in the existing chain.
210 This work was sponsored by Google.
213 *) Removed effectively defunct crypto/store from the build.
216 *) Revamp of STACK to provide stronger type-checking. Still to come:
217 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
218 ASN1_STRING, CONF_VALUE.
221 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
222 RAM on SSL connections. This option can save about 34k per idle SSL.
225 *) Revamp of LHASH to provide stronger type-checking. Still to come:
226 STACK, TXT_DB, bsearch, qsort.
229 *) Initial support for Cryptographic Message Syntax (aka CMS) based
230 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
231 support for data, signedData, compressedData, digestedData and
232 encryptedData, envelopedData types included. Scripts to check against
233 RFC4134 examples draft and interop and consistency checks of many
234 content types and variants.
237 *) Add options to enc utility to support use of zlib compression BIO.
240 *) Extend mk1mf to support importing of options and assembly language
241 files from Configure script, currently only included in VC-WIN32.
242 The assembly language rules can now optionally generate the source
243 files from the associated perl scripts.
246 *) Implement remaining functionality needed to support GOST ciphersuites.
247 Interop testing has been performed using CryptoPro implementations.
248 [Victor B. Wagner <vitus@cryptocom.ru>]
250 *) s390x assembler pack.
253 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
257 *) Implement Opaque PRF Input TLS extension as specified in
258 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
259 official specification yet and no extension type assignment by
260 IANA exists, this extension (for now) will have to be explicitly
261 enabled when building OpenSSL by providing the extension number
262 to use. For example, specify an option
264 -DTLSEXT_TYPE_opaque_prf_input=0x9527
266 to the "config" or "Configure" script to enable the extension,
267 assuming extension number 0x9527 (which is a completely arbitrary
268 and unofficial assignment based on the MD5 hash of the Internet
269 Draft). Note that by doing so, you potentially lose
270 interoperability with other TLS implementations since these might
271 be using the same extension number for other purposes.
273 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
274 opaque PRF input value to use in the handshake. This will create
275 an interal copy of the length-'len' string at 'src', and will
276 return non-zero for success.
278 To get more control and flexibility, provide a callback function
281 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
282 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
286 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
289 Callback function 'cb' will be called in handshakes, and is
290 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
291 Argument 'arg' is for application purposes (the value as given to
292 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
293 be provided to the callback function). The callback function
294 has to return non-zero to report success: usually 1 to use opaque
295 PRF input just if possible, or 2 to enforce use of the opaque PRF
296 input. In the latter case, the library will abort the handshake
297 if opaque PRF input is not successfully negotiated.
299 Arguments 'peerinput' and 'len' given to the callback function
300 will always be NULL and 0 in the case of a client. A server will
301 see the client's opaque PRF input through these variables if
302 available (NULL and 0 otherwise). Note that if the server
303 provides an opaque PRF input, the length must be the same as the
304 length of the client's opaque PRF input.
306 Note that the callback function will only be called when creating
307 a new session (session resumption can resume whatever was
308 previously negotiated), and will not be called in SSL 2.0
309 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
310 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
311 for applications that need to enforce opaque PRF input.
315 *) Update ssl code to support digests other than SHA1+MD5 for handshake
318 [Victor B. Wagner <vitus@cryptocom.ru>]
320 *) Add RFC4507 support to OpenSSL. This includes the corrections in
321 RFC4507bis. The encrypted ticket format is an encrypted encoded
322 SSL_SESSION structure, that way new session features are automatically
325 If a client application caches session in an SSL_SESSION structure
326 support is transparent because tickets are now stored in the encoded
329 The SSL_CTX structure automatically generates keys for ticket
330 protection in servers so again support should be possible
331 with no application modification.
333 If a client or server wishes to disable RFC4507 support then the option
334 SSL_OP_NO_TICKET can be set.
336 Add a TLS extension debugging callback to allow the contents of any client
337 or server extensions to be examined.
339 This work was sponsored by Google.
342 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
343 OpenSSL should now compile cleanly on gcc 4.2
344 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
346 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
347 support including streaming MAC support: this is required for GOST
349 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
351 *) Add option -stream to use PKCS#7 streaming in smime utility. New
352 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
353 to output in BER and PEM format.
356 *) Experimental support for use of HMAC via EVP_PKEY interface. This
357 allows HMAC to be handled via the EVP_DigestSign*() interface. The
358 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
359 ENGINE support for HMAC keys which are unextractable. New -mac and
360 -macopt options to dgst utility.
363 *) New option -sigopt to dgst utility. Update dgst to use
364 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
365 alternative signing paramaters such as X9.31 or PSS in the dgst
369 *) Change ssl_cipher_apply_rule(), the internal function that does
370 the work each time a ciphersuite string requests enabling
371 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
372 removing ("!foo+bar") a class of ciphersuites: Now it maintains
373 the order of disabled ciphersuites such that those ciphersuites
374 that most recently went from enabled to disabled not only stay
375 in order with respect to each other, but also have higher priority
376 than other disabled ciphersuites the next time ciphersuites are
379 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
380 the same ciphersuites as with "HIGH" alone, but in a specific
381 order where the PSK ciphersuites come first (since they are the
382 most recently disabled ciphersuites when "HIGH" is parsed).
384 Also, change ssl_create_cipher_list() (using this new
385 funcionality) such that between otherwise identical
386 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
390 *) Change ssl_create_cipher_list() so that it automatically
391 arranges the ciphersuites in reasonable order before starting
392 to process the rule string. Thus, the definition for "DEFAULT"
393 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
394 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
395 This makes it much easier to arrive at a reasonable default order
396 in applications for which anonymous ciphers are OK (meaning
397 that you can't actually use DEFAULT).
398 [Bodo Moeller; suggested by Victor Duchovni]
400 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
401 processing) into multiple integers instead of setting
402 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
403 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
404 (These masks as well as the individual bit definitions are hidden
405 away into the non-exported interface ssl/ssl_locl.h, so this
406 change to the definition of the SSL_CIPHER structure shouldn't
407 affect applications.) This give us more bits for each of these
408 categories, so there is no longer a need to coagulate AES128 and
409 AES256 into a single algorithm bit, and to coagulate Camellia128
410 and Camellia256 into a single algorithm bit, which has led to all
413 Thus, among other things, the kludge introduced in 0.9.7m and
414 0.9.8e for masking out AES256 independently of AES128 or masking
415 out Camellia256 independently of AES256 is not needed here in 0.9.9.
417 With the change, we also introduce new ciphersuite aliases that
418 so far were missing: "AES128", "AES256", "CAMELLIA128", and
422 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
423 Use the leftmost N bytes of the signature input if the input is
424 larger than the prime q (with N being the size in bytes of q).
427 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
428 it yet and it is largely untested.
431 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
434 *) Initial incomplete changes to avoid need for function casts in OpenSSL
435 some compilers (gcc 4.2 and later) reject their use. Safestack is
436 reimplemented. Update ASN1 to avoid use of legacy functions.
439 *) Win32/64 targets are linked with Winsock2.
442 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
443 to external functions. This can be used to increase CRL handling
444 efficiency especially when CRLs are very large by (for example) storing
445 the CRL revoked certificates in a database.
448 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
449 new CRLs added to a directory can be used. New command line option
450 -verify_return_error to s_client and s_server. This causes real errors
451 to be returned by the verify callback instead of carrying on no matter
452 what. This reflects the way a "real world" verify callback would behave.
455 *) GOST engine, supporting several GOST algorithms and public key formats.
456 Kindly donated by Cryptocom.
459 *) Partial support for Issuing Distribution Point CRL extension. CRLs
460 partitioned by DP are handled but no indirect CRL or reason partitioning
461 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
462 selected via a scoring technique which handles IDP and AKID in CRLs.
465 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
466 will ultimately be used for all verify operations: this will remove the
467 X509_STORE dependency on certificate verification and allow alternative
468 lookup methods. X509_STORE based implementations of these two callbacks.
471 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
472 Modify get_crl() to find a valid (unexpired) CRL if possible.
475 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
476 this would be called X509_CRL_cmp() but that name is already used by
477 a function that just compares CRL issuer names. Cache several CRL
478 extensions in X509_CRL structure and cache CRLDP in X509.
481 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
482 this maps equivalent X509_NAME structures into a consistent structure.
483 Name comparison can then be performed rapidly using memcmp().
486 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
490 *) Allow digests to supply their own micalg string for S/MIME type using
491 the ctrl EVP_MD_CTRL_MICALG.
494 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
495 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
496 ctrl. It can then customise the structure before and/or after signing
500 *) New function OBJ_add_sigid() to allow application defined signature OIDs
501 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
502 to free up any added signature OIDs.
505 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
506 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
507 digest and cipher tables. New options added to openssl utility:
508 list-message-digest-algorithms and list-cipher-algorithms.
511 *) Change the array representation of binary polynomials: the list
512 of degrees of non-zero coefficients is now terminated with -1.
513 Previously it was terminated with 0, which was also part of the
514 value; thus, the array representation was not applicable to
515 polynomials where t^0 has coefficient zero. This change makes
516 the array representation useful in a more general context.
519 *) Various modifications and fixes to SSL/TLS cipher string
520 handling. For ECC, the code now distinguishes between fixed ECDH
521 with RSA certificates on the one hand and with ECDSA certificates
522 on the other hand, since these are separate ciphersuites. The
523 unused code for Fortezza ciphersuites has been removed.
525 For consistency with EDH, ephemeral ECDH is now called "EECDH"
526 (not "ECDHE"). For consistency with the code for DH
527 certificates, use of ECDH certificates is now considered ECDH
528 authentication, not RSA or ECDSA authentication (the latter is
529 merely the CA's signing algorithm and not actively used in the
532 The temporary ciphersuite alias "ECCdraft" is no longer
533 available, and ECC ciphersuites are no longer excluded from "ALL"
534 and "DEFAULT". The following aliases now exist for RFC 4492
535 ciphersuites, most of these by analogy with the DH case:
537 kECDHr - ECDH cert, signed with RSA
538 kECDHe - ECDH cert, signed with ECDSA
539 kECDH - ECDH cert (signed with either RSA or ECDSA)
540 kEECDH - ephemeral ECDH
541 ECDH - ECDH cert or ephemeral ECDH
547 AECDH - anonymous ECDH
548 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
552 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
553 Use correct micalg parameters depending on digest(s) in signed message.
556 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
557 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
560 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
561 an engine to register a method. Add ENGINE lookups for methods and
562 functional reference processing.
565 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
566 EVP_{Sign,Verify}* which allow an application to customise the signature
570 *) New -resign option to smime utility. This adds one or more signers
571 to an existing PKCS#7 signedData structure. Also -md option to use an
572 alternative message digest algorithm for signing.
575 *) Tidy up PKCS#7 routines and add new functions to make it easier to
576 create PKCS7 structures containing multiple signers. Update smime
577 application to support multiple signers.
580 *) New -macalg option to pkcs12 utility to allow setting of an alternative
584 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
585 Reorganize PBE internals to lookup from a static table using NIDs,
586 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
587 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
588 PRF which will be automatically used with PBES2.
591 *) Replace the algorithm specific calls to generate keys in "req" with the
595 *) Update PKCS#7 enveloped data routines to use new API. This is now
596 supported by any public key method supporting the encrypt operation. A
597 ctrl is added to allow the public key algorithm to examine or modify
598 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
602 *) Add a ctrl to asn1 method to allow a public key algorithm to express
603 a default digest type to use. In most cases this will be SHA1 but some
604 algorithms (such as GOST) need to specify an alternative digest. The
605 return value indicates how strong the prefernce is 1 means optional and
606 2 is mandatory (that is it is the only supported type). Modify
607 ASN1_item_sign() to accept a NULL digest argument to indicate it should
608 use the default md. Update openssl utilities to use the default digest
609 type for signing if it is not explicitly indicated.
612 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
613 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
614 signing method from the key type. This effectively removes the link
615 between digests and public key types.
618 *) Add an OID cross reference table and utility functions. Its purpose is to
619 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
620 rsaEncryption. This will allow some of the algorithm specific hackery
621 needed to use the correct OID to be removed.
624 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
625 structures for PKCS7_sign(). They are now set up by the relevant public
629 *) Add provisional EC pkey method with support for ECDSA and ECDH.
632 *) Add support for key derivation (agreement) in the API, DH method and
636 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
637 public and private key formats. As a side effect these add additional
638 command line functionality not previously available: DSA signatures can be
639 generated and verified using pkeyutl and DH key support and generation in
644 [Oliver Tappe <zooey@hirschkaefer.de>]
646 *) New make target "install_html_docs" installs HTML renditions of the
648 [Oliver Tappe <zooey@hirschkaefer.de>]
650 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
651 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
652 support key and parameter generation and add initial key generation
653 functionality for RSA.
656 *) Add functions for main EVP_PKEY_method operations. The undocumented
657 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
658 EVP_PKEY_{encrypt,decrypt}_old.
661 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
662 key API, doesn't do much yet.
665 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
666 public key algorithms. New option to openssl utility:
667 "list-public-key-algorithms" to print out info.
670 *) Implement the Supported Elliptic Curves Extension for
671 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
674 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
675 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
678 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
679 utilities such as rsa, dsa, dsaparam etc except they process any key
683 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
684 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
685 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
689 *) Initial support for pluggable public key ASN1.
690 De-spaghettify the public key ASN1 handling. Move public and private
691 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
692 algorithm specific handling to a single module within the relevant
693 algorithm directory. Add functions to allow (near) opaque processing
694 of public and private key structures.
697 *) Implement the Supported Point Formats Extension for
698 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
701 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
702 for the psk identity [hint] and the psk callback functions to the
703 SSL_SESSION, SSL and SSL_CTX structure.
706 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
710 SSL_CTX_use_psk_identity_hint
711 SSL_get_psk_identity_hint
713 SSL_use_psk_identity_hint
715 [Mika Kousa and Pasi Eronen of Nokia Corporation]
717 *) Add RFC 3161 compliant time stamp request creation, response generation
718 and response verification functionality.
719 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
721 *) Add initial support for TLS extensions, specifically for the server_name
722 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
723 have new members for a host name. The SSL data structure has an
724 additional member SSL_CTX *initial_ctx so that new sessions can be
725 stored in that context to allow for session resumption, even after the
726 SSL has been switched to a new SSL_CTX in reaction to a client's
727 server_name extension.
729 New functions (subject to change):
732 SSL_get_servername_type()
735 New CTRL codes and macros (subject to change):
737 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
738 - SSL_CTX_set_tlsext_servername_callback()
739 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
740 - SSL_CTX_set_tlsext_servername_arg()
741 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
743 openssl s_client has a new '-servername ...' option.
745 openssl s_server has new options '-servername_host ...', '-cert2 ...',
746 '-key2 ...', '-servername_fatal' (subject to change). This allows
747 testing the HostName extension for a specific single host name ('-cert'
748 and '-key' remain fallbacks for handshakes without HostName
749 negotiation). If the unrecogninzed_name alert has to be sent, this by
750 default is a warning; it becomes fatal with the '-servername_fatal'
753 [Peter Sylvester, Remy Allais, Christophe Renou]
755 *) Whirlpool hash implementation is added.
758 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
759 bn(64,32). Because of instruction set limitations it doesn't have
760 any negative impact on performance. This was done mostly in order
761 to make it possible to share assembler modules, such as bn_mul_mont
762 implementations, between 32- and 64-bit builds without hassle.
765 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
766 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
770 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
771 dedicated Montgomery multiplication procedure, is introduced.
772 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
773 "64-bit" performance on certain 32-bit targets.
776 *) New option SSL_OP_NO_COMP to disable use of compression selectively
777 in SSL structures. New SSL ctrl to set maximum send fragment size.
778 Save memory by seeting the I/O buffer sizes dynamically instead of
779 using the maximum available value.
782 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
783 in addition to the text details.
786 *) Very, very preliminary EXPERIMENTAL support for printing of general
787 ASN1 structures. This currently produces rather ugly output and doesn't
788 handle several customised structures at all.
791 *) Integrated support for PVK file format and some related formats such
792 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
793 these in the 'rsa' and 'dsa' utilities.
796 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
799 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
800 place for the (very old) "NETSCAPE" format certificates which are now
801 handled using new ASN1 code equivalents.
804 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
805 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
806 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
809 *) Modify CRL distribution points extension code to print out previously
810 unsupported fields. Enhance extension setting code to allow setting of
814 *) Add print and set support for Issuing Distribution Point CRL extension.
817 *) Change 'Configure' script to enable Camellia by default.
820 Changes between 0.9.8k and 0.9.8l [xx XXX xxxx]
822 *) Add --strict-warnings option to Configure script to include devteam
823 warnings in other configurations.
826 *) Add support for --libdir option and LIBDIR variable in makefiles. This
827 makes it possible to install openssl libraries in locations which
828 have names other than "lib", for example "/usr/lib64" which some
830 [Steve Henson, based on patch from Jeremy Utley]
832 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
833 X690 8.9.12 and can produce some misleading textual output of OIDs.
834 [Steve Henson, reported by Dan Kaminsky]
836 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
840 *) Fix the server certificate chain building code to use X509_verify_cert(),
841 it used to have an ad-hoc builder which was unable to cope with anything
842 other than a simple chain.
843 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
845 *) Don't check self signed certificate signatures in X509_verify_cert()
846 by default (a flag can override this): it just wastes time without
847 adding any security. As a useful side effect self signed root CAs
848 with non-FIPS digests are now usable in FIPS mode.
851 *) In dtls1_process_out_of_seq_message() the check if the current message
852 is already buffered was missing. For every new message was memory
853 allocated, allowing an attacker to perform an denial of service attack
854 with sending out of seq handshake messages until there is no memory
855 left. Additionally every future messege was buffered, even if the
856 sequence number made no sense and would be part of another handshake.
857 So only messages with sequence numbers less than 10 in advance will be
859 [Robin Seggelmann, discovered by Daniel Mentz]
861 *) Records are buffered if they arrive with a future epoch to be
862 processed after finishing the corresponding handshake. There is
863 currently no limitation to this buffer allowing an attacker to perform
864 a DOS attack with sending records with future epochs until there is no
865 memory left. This patch adds the pqueue_size() function to detemine
866 the size of a buffer and limits the record buffer to 100 entries.
867 [Robin Seggelmann, discovered by Daniel Mentz]
869 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
870 parent structure is freed.
873 *) Handle non-blocking I/O properly in SSL_shutdown() call.
874 [Darryl Miles <darryl-mailinglists@netbauds.net>]
877 [Ilya O. <vrghost@gmail.com>]
879 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
881 *) Don't set val to NULL when freeing up structures, it is freed up by
882 underlying code. If sizeof(void *) > sizeof(long) this can result in
883 zeroing past the valid field. (CVE-2009-0789)
884 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
886 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
887 checked correctly. This would allow some invalid signed attributes to
888 appear to verify correctly. (CVE-2009-0591)
889 [Ivan Nestlerode <inestlerode@us.ibm.com>]
891 *) Reject UniversalString and BMPString types with invalid lengths. This
892 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
893 a legal length. (CVE-2009-0590)
896 *) Set S/MIME signing as the default purpose rather than setting it
897 unconditionally. This allows applications to override it at the store
901 *) Permit restricted recursion of ASN1 strings. This is needed in practice
902 to handle some structures.
905 *) Improve efficiency of mem_gets: don't search whole buffer each time
907 [Jeremy Shapiro <jnshapir@us.ibm.com>]
909 *) New -hex option for openssl rand.
912 *) Print out UTF8String and NumericString when parsing ASN1.
915 *) Support NumericString type for name components.
918 *) Allow CC in the environment to override the automatically chosen
919 compiler. Note that nothing is done to ensure flags work with the
923 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
925 *) Properly check EVP_VerifyFinal() and similar return values
927 [Ben Laurie, Bodo Moeller, Google Security Team]
929 *) Enable TLS extensions by default.
932 *) Allow the CHIL engine to be loaded, whether the application is
933 multithreaded or not. (This does not release the developer from the
934 obligation to set up the dynamic locking callbacks.)
935 [Sander Temme <sander@temme.net>]
937 *) Use correct exit code if there is an error in dgst command.
938 [Steve Henson; problem pointed out by Roland Dirlewanger]
940 *) Tweak Configure so that you need to say "experimental-jpake" to enable
941 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
944 *) Add experimental JPAKE support, including demo authentication in
945 s_client and s_server.
948 *) Set the comparison function in v3_addr_canonize().
949 [Rob Austein <sra@hactrn.net>]
951 *) Add support for XMPP STARTTLS in s_client.
952 [Philip Paeps <philip@freebsd.org>]
954 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
955 to ensure that even with this option, only ciphersuites in the
956 server's preference list will be accepted. (Note that the option
957 applies only when resuming a session, so the earlier behavior was
958 just about the algorithm choice for symmetric cryptography.)
961 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
963 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
964 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
967 *) The fix in 0.9.8c that supposedly got rid of unsafe
968 double-checked locking was incomplete for RSA blinding,
969 addressing just one layer of what turns out to have been
970 doubly unsafe triple-checked locking.
972 So now fix this for real by retiring the MONT_HELPER macro
973 in crypto/rsa/rsa_eay.c.
975 [Bodo Moeller; problem pointed out by Marius Schilder]
977 *) Various precautionary measures:
979 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
981 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
982 (NB: This would require knowledge of the secret session ticket key
983 to exploit, in which case you'd be SOL either way.)
985 - Change bn_nist.c so that it will properly handle input BIGNUMs
986 outside the expected range.
988 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
991 [Neel Mehta, Bodo Moeller]
993 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
994 the load fails. Useful for distros.
995 [Ben Laurie and the FreeBSD team]
997 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1000 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1003 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1005 This work was sponsored by Logica.
1008 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1009 keystores. Support for SSL/TLS client authentication too.
1010 Not compiled unless enable-capieng specified to Configure.
1012 This work was sponsored by Logica.
1015 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1016 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1017 attribute creation routines such as certifcate requests and PKCS#12
1021 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1023 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1024 handshake which could lead to a cilent crash as found using the
1025 Codenomicon TLS test suite (CVE-2008-1672)
1026 [Steve Henson, Mark Cox]
1028 *) Fix double free in TLS server name extensions which could lead to
1029 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1032 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1034 Clear the error queue to ensure that error entries left from
1035 older function calls do not interfere with the correct operation.
1036 [Lutz Jaenicke, Erik de Castro Lopo]
1038 *) Remove root CA certificates of commercial CAs:
1040 The OpenSSL project does not recommend any specific CA and does not
1041 have any policy with respect to including or excluding any CA.
1042 Therefore it does not make any sense to ship an arbitrary selection
1043 of root CA certificates with the OpenSSL software.
1046 *) RSA OAEP patches to fix two separate invalid memory reads.
1047 The first one involves inputs when 'lzero' is greater than
1048 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1049 before the beginning of from). The second one involves inputs where
1050 the 'db' section contains nothing but zeroes (there is a one-byte
1051 invalid read after the end of 'db').
1052 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1054 *) Partial backport from 0.9.9-dev:
1056 Introduce bn_mul_mont (dedicated Montgomery multiplication
1057 procedure) as a candidate for BIGNUM assembler implementation.
1058 While 0.9.9-dev uses assembler for various architectures, only
1059 x86_64 is available by default here in the 0.9.8 branch, and
1060 32-bit x86 is available through a compile-time setting.
1062 To try the 32-bit x86 assembler implementation, use Configure
1063 option "enable-montasm" (which exists only for this backport).
1065 As "enable-montasm" for 32-bit x86 disclaims code stability
1066 anyway, in this constellation we activate additional code
1067 backported from 0.9.9-dev for further performance improvements,
1068 namely BN_from_montgomery_word. (To enable this otherwise,
1069 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1071 [Andy Polyakov (backport partially by Bodo Moeller)]
1073 *) Add TLS session ticket callback. This allows an application to set
1074 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1075 values. This is useful for key rollover for example where several key
1076 sets may exist with different names.
1079 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1080 This was broken until now in 0.9.8 releases, such that the only way
1081 a registered ENGINE could be used (assuming it initialises
1082 successfully on the host) was to explicitly set it as the default
1083 for the relevant algorithms. This is in contradiction with 0.9.7
1084 behaviour and the documentation. With this fix, when an ENGINE is
1085 registered into a given algorithm's table of implementations, the
1086 'uptodate' flag is reset so that auto-discovery will be used next
1087 time a new context for that algorithm attempts to select an
1089 [Ian Lister (tweaked by Geoff Thorpe)]
1091 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1092 implemention in the following ways:
1094 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1097 Lack of BER streaming support means one pass streaming processing is
1098 only supported if data is detached: setting the streaming flag is
1099 ignored for embedded content.
1101 CMS support is disabled by default and must be explicitly enabled
1102 with the enable-cms configuration option.
1105 *) Update the GMP engine glue to do direct copies between BIGNUM and
1106 mpz_t when openssl and GMP use the same limb size. Otherwise the
1107 existing "conversion via a text string export" trick is still used.
1108 [Paul Sheer <paulsheer@gmail.com>]
1110 *) Zlib compression BIO. This is a filter BIO which compressed and
1111 uncompresses any data passed through it.
1114 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1115 RFC3394 compatible AES key wrapping.
1118 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1119 sets string data without copying. X509_ALGOR_set0() and
1120 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1121 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1122 from an X509_ATTRIBUTE structure optionally checking it occurs only
1123 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1127 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1128 to get the expected BN_FLG_CONSTTIME behavior.
1129 [Bodo Moeller (Google)]
1133 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1134 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1135 - added some more tests to do_tests.pl
1136 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1137 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1138 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1139 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1140 - various changes to netware.pl to enable gcc-cross builds on Win32
1142 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1143 - various changes to fix missing prototype warnings
1144 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1145 - added AES, WHIRLPOOL and CPUID assembler code to build files
1146 - added missing AES assembler make rules to mk1mf.pl
1147 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1148 [Guenter Knauf <eflash@gmx.net>]
1150 *) Implement certificate status request TLS extension defined in RFC3546.
1151 A client can set the appropriate parameters and receive the encoded
1152 OCSP response via a callback. A server can query the supplied parameters
1153 and set the encoded OCSP response in the callback. Add simplified examples
1154 to s_client and s_server.
1157 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1159 *) Fix various bugs:
1160 + Binary incompatibility of ssl_ctx_st structure
1161 + DTLS interoperation with non-compliant servers
1162 + Don't call get_session_cb() without proposed session
1163 + Fix ia64 assembler code
1164 [Andy Polyakov, Steve Henson]
1166 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1168 *) DTLS Handshake overhaul. There were longstanding issues with
1169 OpenSSL DTLS implementation, which were making it impossible for
1170 RFC 4347 compliant client to communicate with OpenSSL server.
1171 Unfortunately just fixing these incompatibilities would "cut off"
1172 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1173 server keeps tolerating non RFC compliant syntax. The opposite is
1174 not true, 0.9.8f client can not communicate with earlier server.
1175 This update even addresses CVE-2007-4995.
1178 *) Changes to avoid need for function casts in OpenSSL: some compilers
1179 (gcc 4.2 and later) reject their use.
1180 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1183 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1184 RFC4507bis. The encrypted ticket format is an encrypted encoded
1185 SSL_SESSION structure, that way new session features are automatically
1188 If a client application caches session in an SSL_SESSION structure
1189 support is transparent because tickets are now stored in the encoded
1192 The SSL_CTX structure automatically generates keys for ticket
1193 protection in servers so again support should be possible
1194 with no application modification.
1196 If a client or server wishes to disable RFC4507 support then the option
1197 SSL_OP_NO_TICKET can be set.
1199 Add a TLS extension debugging callback to allow the contents of any client
1200 or server extensions to be examined.
1202 This work was sponsored by Google.
1205 *) Add initial support for TLS extensions, specifically for the server_name
1206 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1207 have new members for a host name. The SSL data structure has an
1208 additional member SSL_CTX *initial_ctx so that new sessions can be
1209 stored in that context to allow for session resumption, even after the
1210 SSL has been switched to a new SSL_CTX in reaction to a client's
1211 server_name extension.
1213 New functions (subject to change):
1215 SSL_get_servername()
1216 SSL_get_servername_type()
1219 New CTRL codes and macros (subject to change):
1221 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1222 - SSL_CTX_set_tlsext_servername_callback()
1223 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1224 - SSL_CTX_set_tlsext_servername_arg()
1225 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1227 openssl s_client has a new '-servername ...' option.
1229 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1230 '-key2 ...', '-servername_fatal' (subject to change). This allows
1231 testing the HostName extension for a specific single host name ('-cert'
1232 and '-key' remain fallbacks for handshakes without HostName
1233 negotiation). If the unrecogninzed_name alert has to be sent, this by
1234 default is a warning; it becomes fatal with the '-servername_fatal'
1237 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1239 *) Add AES and SSE2 assembly language support to VC++ build.
1242 *) Mitigate attack on final subtraction in Montgomery reduction.
1245 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1246 (which previously caused an internal error).
1249 *) Squeeze another 10% out of IGE mode when in != out.
1252 *) AES IGE mode speedup.
1253 [Dean Gaudet (Google)]
1255 *) Add the Korean symmetric 128-bit cipher SEED (see
1256 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1257 add SEED ciphersuites from RFC 4162:
1259 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1260 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1261 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1262 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1264 To minimize changes between patchlevels in the OpenSSL 0.9.8
1265 series, SEED remains excluded from compilation unless OpenSSL
1266 is configured with 'enable-seed'.
1267 [KISA, Bodo Moeller]
1269 *) Mitigate branch prediction attacks, which can be practical if a
1270 single processor is shared, allowing a spy process to extract
1271 information. For detailed background information, see
1272 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1273 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1274 and Necessary Software Countermeasures"). The core of the change
1275 are new versions BN_div_no_branch() and
1276 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1277 respectively, which are slower, but avoid the security-relevant
1278 conditional branches. These are automatically called by BN_div()
1279 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1280 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1281 remove a conditional branch.
1283 BN_FLG_CONSTTIME is the new name for the previous
1284 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1285 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1286 in the exponent causes BN_mod_exp_mont() to use the alternative
1287 implementation in BN_mod_exp_mont_consttime().) The old name
1288 remains as a deprecated alias.
1290 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1291 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1292 constant-time implementations for more than just exponentiation.
1293 Here too the old name is kept as a deprecated alias.
1295 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1296 the BN_BLINDING structure gets an independent copy of the
1297 modulus. This means that the previous "BIGNUM *m" argument to
1298 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1299 essentially becomes "const BIGNUM *m", although we can't actually
1300 change this in the header file before 0.9.9. It allows
1301 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1302 enable BN_FLG_CONSTTIME.
1304 [Matthew D Wood (Intel Corp)]
1306 *) In the SSL/TLS server implementation, be strict about session ID
1307 context matching (which matters if an application uses a single
1308 external cache for different purposes). Previously,
1309 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1310 set. This did ensure strict client verification, but meant that,
1311 with applications using a single external cache for quite
1312 different requirements, clients could circumvent ciphersuite
1313 restrictions for a given session ID context by starting a session
1314 in a different context.
1317 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1318 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1319 authentication-only ciphersuites.
1322 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1323 not complete and could lead to a possible single byte overflow
1324 (CVE-2007-5135) [Ben Laurie]
1326 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1328 *) Since AES128 and AES256 (and similarly Camellia128 and
1329 Camellia256) share a single mask bit in the logic of
1330 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1331 kludge to work properly if AES128 is available and AES256 isn't
1332 (or if Camellia128 is available and Camellia256 isn't).
1335 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1336 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1337 When a point or a seed is encoded in a BIT STRING, we need to
1338 prevent the removal of trailing zero bits to get the proper DER
1339 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1340 of a NamedBitList, for which trailing 0 bits need to be removed.)
1343 *) Have SSL/TLS server implementation tolerate "mismatched" record
1344 protocol version while receiving ClientHello even if the
1345 ClientHello is fragmented. (The server can't insist on the
1346 particular protocol version it has chosen before the ServerHello
1347 message has informed the client about his choice.)
1350 *) Add RFC 3779 support.
1351 [Rob Austein for ARIN, Ben Laurie]
1353 *) Load error codes if they are not already present instead of using a
1354 static variable. This allows them to be cleanly unloaded and reloaded.
1355 Improve header file function name parsing.
1358 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1359 or CAPABILITY handshake as required by RFCs.
1362 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1364 *) Introduce limits to prevent malicious keys being able to
1365 cause a denial of service. (CVE-2006-2940)
1366 [Steve Henson, Bodo Moeller]
1368 *) Fix ASN.1 parsing of certain invalid structures that can result
1369 in a denial of service. (CVE-2006-2937) [Steve Henson]
1371 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1372 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1374 *) Fix SSL client code which could crash if connecting to a
1375 malicious SSLv2 server. (CVE-2006-4343)
1376 [Tavis Ormandy and Will Drewry, Google Security Team]
1378 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1379 match only those. Before that, "AES256-SHA" would be interpreted
1380 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1381 the same strength classification in 0.9.7h) as we currently only
1382 have a single AES bit in the ciphersuite description bitmap.
1383 That change, however, also applied to ciphersuite strings such as
1384 "RC4-MD5" that intentionally matched multiple ciphersuites --
1385 namely, SSL 2.0 ciphersuites in addition to the more common ones
1386 from SSL 3.0/TLS 1.0.
1388 So we change the selection algorithm again: Naming an explicit
1389 ciphersuite selects this one ciphersuite, and any other similar
1390 ciphersuite (same bitmap) from *other* protocol versions.
1391 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1392 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1394 Since SSL 2.0 does not have any ciphersuites for which the
1395 128/256 bit distinction would be relevant, this works for now.
1396 The proper fix will be to use different bits for AES128 and
1397 AES256, which would have avoided the problems from the beginning;
1398 however, bits are scarce, so we can only do this in a new release
1399 (not just a patchlevel) when we can change the SSL_CIPHER
1400 definition to split the single 'unsigned long mask' bitmap into
1401 multiple values to extend the available space.
1405 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1407 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1408 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1410 *) Add AES IGE and biIGE modes.
1413 *) Change the Unix randomness entropy gathering to use poll() when
1414 possible instead of select(), since the latter has some
1415 undesirable limitations.
1416 [Darryl Miles via Richard Levitte and Bodo Moeller]
1418 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1419 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1420 cannot be implicitly activated as part of, e.g., the "AES" alias.
1421 However, please upgrade to OpenSSL 0.9.9[-dev] for
1422 non-experimental use of the ECC ciphersuites to get TLS extension
1423 support, which is required for curve and point format negotiation
1424 to avoid potential handshake problems.
1427 *) Disable rogue ciphersuites:
1429 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1430 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1431 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1433 The latter two were purportedly from
1434 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1437 Also deactivate the remaining ciphersuites from
1438 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1439 unofficial, and the ID has long expired.
1442 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1443 dual-core machines) and other potential thread-safety issues.
1446 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1447 versions), which is now available for royalty-free use
1448 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1449 Also, add Camellia TLS ciphersuites from RFC 4132.
1451 To minimize changes between patchlevels in the OpenSSL 0.9.8
1452 series, Camellia remains excluded from compilation unless OpenSSL
1453 is configured with 'enable-camellia'.
1456 *) Disable the padding bug check when compression is in use. The padding
1457 bug check assumes the first packet is of even length, this is not
1458 necessarily true if compresssion is enabled and can result in false
1459 positives causing handshake failure. The actual bug test is ancient
1460 code so it is hoped that implementations will either have fixed it by
1461 now or any which still have the bug do not support compression.
1464 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1466 *) When applying a cipher rule check to see if string match is an explicit
1467 cipher suite and only match that one cipher suite if it is.
1470 *) Link in manifests for VC++ if needed.
1471 [Austin Ziegler <halostatue@gmail.com>]
1473 *) Update support for ECC-based TLS ciphersuites according to
1474 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1475 TLS extensions, which are supported starting with the 0.9.9
1476 branch, not in the OpenSSL 0.9.8 branch).
1479 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1480 opaque EVP_CIPHER_CTX handling.
1483 *) Fixes and enhancements to zlib compression code. We now only use
1484 "zlib1.dll" and use the default __cdecl calling convention on Win32
1485 to conform with the standards mentioned here:
1486 http://www.zlib.net/DLL_FAQ.txt
1487 Static zlib linking now works on Windows and the new --with-zlib-include
1488 --with-zlib-lib options to Configure can be used to supply the location
1489 of the headers and library. Gracefully handle case where zlib library
1493 *) Several fixes and enhancements to the OID generation code. The old code
1494 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1495 handle numbers larger than ULONG_MAX, truncated printing and had a
1496 non standard OBJ_obj2txt() behaviour.
1499 *) Add support for building of engines under engine/ as shared libraries
1500 under VC++ build system.
1503 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1504 Hopefully, we will not see any false combination of paths any more.
1507 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1509 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1510 (part of SSL_OP_ALL). This option used to disable the
1511 countermeasure against man-in-the-middle protocol-version
1512 rollback in the SSL 2.0 server implementation, which is a bad
1513 idea. (CVE-2005-2969)
1515 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1516 for Information Security, National Institute of Advanced Industrial
1517 Science and Technology [AIST], Japan)]
1519 *) Add two function to clear and return the verify parameter flags.
1522 *) Keep cipherlists sorted in the source instead of sorting them at
1523 runtime, thus removing the need for a lock.
1526 *) Avoid some small subgroup attacks in Diffie-Hellman.
1527 [Nick Mathewson and Ben Laurie]
1529 *) Add functions for well-known primes.
1532 *) Extended Windows CE support.
1533 [Satoshi Nakamura and Andy Polyakov]
1535 *) Initialize SSL_METHOD structures at compile time instead of during
1536 runtime, thus removing the need for a lock.
1539 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1540 attempting to decrypt each encrypted key in turn. Add support to
1544 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1546 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1549 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1552 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1553 key into the same file any more.
1556 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1559 *) Add -utf8 command line and config file option to 'ca'.
1560 [Stefan <stf@udoma.org]
1562 *) Removed the macro des_crypt(), as it seems to conflict with some
1563 libraries. Use DES_crypt().
1566 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1567 involves renaming the source and generated shared-libs for
1568 both. The engines will accept the corrected or legacy ids
1569 ('ncipher' and '4758_cca' respectively) when binding. NB,
1570 this only applies when building 'shared'.
1571 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1573 *) Add attribute functions to EVP_PKEY structure. Modify
1574 PKCS12_create() to recognize a CSP name attribute and
1575 use it. Make -CSP option work again in pkcs12 utility.
1578 *) Add new functionality to the bn blinding code:
1579 - automatic re-creation of the BN_BLINDING parameters after
1580 a fixed number of uses (currently 32)
1581 - add new function for parameter creation
1582 - introduce flags to control the update behaviour of the
1583 BN_BLINDING parameters
1584 - hide BN_BLINDING structure
1585 Add a second BN_BLINDING slot to the RSA structure to improve
1586 performance when a single RSA object is shared among several
1590 *) Add support for DTLS.
1591 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1593 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1594 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1597 *) Remove buggy and incompletet DH cert support from
1598 ssl/ssl_rsa.c and ssl/s3_both.c
1601 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1602 the apps/openssl applications.
1605 *) Compile clean with "-Wall -Wmissing-prototypes
1606 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1607 DEBUG_SAFESTACK must also be set.
1610 *) Change ./Configure so that certain algorithms can be disabled by default.
1611 The new counterpiece to "no-xxx" is "enable-xxx".
1613 The patented RC5 and MDC2 algorithms will now be disabled unless
1614 "enable-rc5" and "enable-mdc2", respectively, are specified.
1616 (IDEA remains enabled despite being patented. This is because IDEA
1617 is frequently required for interoperability, and there is no license
1618 fee for non-commercial use. As before, "no-idea" can be used to
1619 avoid this algorithm.)
1623 *) Add processing of proxy certificates (see RFC 3820). This work was
1624 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1625 EGEE (Enabling Grids for E-science in Europe).
1628 *) RC4 performance overhaul on modern architectures/implementations, such
1629 as Intel P4, IA-64 and AMD64.
1632 *) New utility extract-section.pl. This can be used specify an alternative
1633 section number in a pod file instead of having to treat each file as
1634 a separate case in Makefile. This can be done by adding two lines to the
1637 =for comment openssl_section:XXX
1639 The blank line is mandatory.
1643 *) New arguments -certform, -keyform and -pass for s_client and s_server
1644 to allow alternative format key and certificate files and passphrase
1648 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1649 update associated structures and add various utility functions.
1651 Add new policy related verify parameters, include policy checking in
1652 standard verify code. Enhance 'smime' application with extra parameters
1653 to support policy checking and print out.
1656 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1657 Nehemiah processors. These extensions support AES encryption in hardware
1658 as well as RNG (though RNG support is currently disabled).
1659 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1661 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1664 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1665 [Andy Polyakov and a number of other people]
1667 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1668 implementation contributed by IBM.
1669 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1671 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1672 exponent rather than 'unsigned long'. There is a corresponding change to
1673 the new 'rsa_keygen' element of the RSA_METHOD structure.
1674 [Jelte Jansen, Geoff Thorpe]
1676 *) Functionality for creating the initial serial number file is now
1677 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1679 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1680 number file to 1, which is bound to cause problems. To avoid
1681 the problems while respecting compatibility between different 0.9.7
1682 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1683 CA.pl for serial number initialization. With the new release 0.9.8,
1684 we can fix the problem directly in the 'ca' utility.)
1687 *) Reduced header interdepencies by declaring more opaque objects in
1688 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1689 give fewer recursive includes, which could break lazy source code - so
1690 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1691 developers should define this symbol when building and using openssl to
1692 ensure they track the recommended behaviour, interfaces, [etc], but
1693 backwards-compatible behaviour prevails when this isn't defined.
1696 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1699 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1700 This will generate a random key of the appropriate length based on the
1701 cipher context. The EVP_CIPHER can provide its own random key generation
1702 routine to support keys of a specific form. This is used in the des and
1703 3des routines to generate a key of the correct parity. Update S/MIME
1704 code to use new functions and hence generate correct parity DES keys.
1705 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1706 valid (weak or incorrect parity).
1709 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1710 as looking them up. This is useful when the verified structure may contain
1711 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1712 present unless the new PKCS7_NO_CRL flag is asserted.
1715 *) Extend ASN1 oid configuration module. It now additionally accepts the
1718 shortName = some long name, 1.2.3.4
1721 *) Reimplemented the BN_CTX implementation. There is now no more static
1722 limitation on the number of variables it can handle nor the depth of the
1723 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1724 information can now expand as required, and rather than having a single
1725 static array of bignums, BN_CTX now uses a linked-list of such arrays
1726 allowing it to expand on demand whilst maintaining the usefulness of
1727 BN_CTX's "bundling".
1730 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1731 to allow all RSA operations to function using a single BN_CTX.
1734 *) Preliminary support for certificate policy evaluation and checking. This
1735 is initially intended to pass the tests outlined in "Conformance Testing
1736 of Relying Party Client Certificate Path Processing Logic" v1.07.
1739 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1740 remained unused and not that useful. A variety of other little bignum
1741 tweaks and fixes have also been made continuing on from the audit (see
1745 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1746 associated ASN1, EVP and SSL functions and old ASN1 macros.
1749 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1750 and this should never fail. So the return value from the use of
1751 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1752 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1755 *) BN_CTX_get() should return zero-valued bignums, providing the same
1756 initialised value as BN_new().
1757 [Geoff Thorpe, suggested by Ulf Möller]
1759 *) Support for inhibitAnyPolicy certificate extension.
1762 *) An audit of the BIGNUM code is underway, for which debugging code is
1763 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1764 is considered valid when processing BIGNUMs, and causes execution to
1765 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1766 further steps are taken to deliberately pollute unused data in BIGNUM
1767 structures to try and expose faulty code further on. For now, openssl will
1768 (in its default mode of operation) continue to tolerate the inconsistent
1769 forms that it has tolerated in the past, but authors and packagers should
1770 consider trying openssl and their own applications when compiled with
1771 these debugging symbols defined. It will help highlight potential bugs in
1772 their own code, and will improve the test coverage for OpenSSL itself. At
1773 some point, these tighter rules will become openssl's default to improve
1774 maintainability, though the assert()s and other overheads will remain only
1775 in debugging configurations. See bn.h for more details.
1776 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1778 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1779 that can only be obtained through BN_CTX_new() (which implicitly
1780 initialises it). The presence of this function only made it possible
1781 to overwrite an existing structure (and cause memory leaks).
1784 *) Because of the callback-based approach for implementing LHASH as a
1785 template type, lh_insert() adds opaque objects to hash-tables and
1786 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1787 to clean up those corresponding objects before destroying the hash table
1788 (and losing the object pointers). So some over-zealous constifications in
1789 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1790 objects as "const" and the lh_doall[_arg] callback wrappers are not
1791 prototyped to have "const" restrictions on the object pointers they are
1792 given (and so aren't required to cast them away any more).
1795 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1796 (speed) prefers to use its own implementation. The two implementations
1797 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1798 its object type properly exposed (MS_TM) instead of casting to/from "char
1799 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1800 aren't necessarily the greatest nomenclatures - but this is what was used
1801 internally to the implementation so I've used that for now.
1804 *) Ensure that deprecated functions do not get compiled when
1805 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1806 the self-tests were still using deprecated key-generation functions so
1807 these have been updated also.
1810 *) Reorganise PKCS#7 code to separate the digest location functionality
1811 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1812 New function PKCS7_set_digest() to set the digest type for PKCS#7
1813 digestedData type. Add additional code to correctly generate the
1814 digestedData type and add support for this type in PKCS7 initialization
1818 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1819 structure of type "other".
1822 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1823 sure the loop does correctly stop and breaking ("division by zero")
1824 modulus operations are not performed. The (pre-generated) prime
1825 table crypto/bn/bn_prime.h was already correct, but it could not be
1826 re-generated on some platforms because of the "division by zero"
1827 situation in the script.
1828 [Ralf S. Engelschall]
1830 *) Update support for ECC-based TLS ciphersuites according to
1831 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1832 SHA-1 now is only used for "small" curves (where the
1833 representation of a field element takes up to 24 bytes); for
1834 larger curves, the field element resulting from ECDH is directly
1835 used as premaster secret.
1836 [Douglas Stebila (Sun Microsystems Laboratories)]
1838 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1839 curve secp160r1 to the tests.
1840 [Douglas Stebila (Sun Microsystems Laboratories)]
1842 *) Add the possibility to load symbols globally with DSO.
1843 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1845 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1846 control of the error stack.
1849 *) Add support for STORE in ENGINE.
1852 *) Add the STORE type. The intention is to provide a common interface
1853 to certificate and key stores, be they simple file-based stores, or
1854 HSM-type store, or LDAP stores, or...
1855 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1858 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1859 pass a list of arguments to any function as well as provide a way
1860 for a function to pass data back to the caller.
1863 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1864 works like BUF_strdup() but can be used to duplicate a portion of
1865 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1869 *) Add the function sk_find_ex() which works like sk_find(), but will
1870 return an index to an element even if an exact match couldn't be
1871 found. The index is guaranteed to point at the element where the
1872 searched-for key would be inserted to preserve sorting order.
1875 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1876 takes an extra flags argument for optional functionality. Currently,
1877 the following flags are defined:
1879 OBJ_BSEARCH_VALUE_ON_NOMATCH
1880 This one gets OBJ_bsearch_ex() to return a pointer to the first
1881 element where the comparing function returns a negative or zero
1884 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1885 This one gets OBJ_bsearch_ex() to return a pointer to the first
1886 element where the comparing function returns zero. This is useful
1887 if there are more than one element where the comparing function
1891 *) Make it possible to create self-signed certificates with 'openssl ca'
1892 in such a way that the self-signed certificate becomes part of the
1893 CA database and uses the same mechanisms for serial number generation
1894 as all other certificate signing. The new flag '-selfsign' enables
1895 this functionality. Adapt CA.sh and CA.pl.in.
1898 *) Add functionality to check the public key of a certificate request
1899 against a given private. This is useful to check that a certificate
1900 request can be signed by that key (self-signing).
1903 *) Make it possible to have multiple active certificates with the same
1904 subject in the CA index file. This is done only if the keyword
1905 'unique_subject' is set to 'no' in the main CA section (default
1906 if 'CA_default') of the configuration file. The value is saved
1907 with the database itself in a separate index attribute file,
1908 named like the index file with '.attr' appended to the name.
1911 *) Generate muti valued AVAs using '+' notation in config files for
1915 *) Support for nameConstraints certificate extension.
1918 *) Support for policyConstraints certificate extension.
1921 *) Support for policyMappings certificate extension.
1924 *) Make sure the default DSA_METHOD implementation only uses its
1925 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1926 and change its own handlers to be NULL so as to remove unnecessary
1927 indirection. This lets alternative implementations fallback to the
1928 default implementation more easily.
1931 *) Support for directoryName in GeneralName related extensions
1935 *) Make it possible to link applications using Makefile.shared.
1936 Make that possible even when linking against static libraries!
1939 *) Support for single pass processing for S/MIME signing. This now
1940 means that S/MIME signing can be done from a pipe, in addition
1941 cleartext signing (multipart/signed type) is effectively streaming
1942 and the signed data does not need to be all held in memory.
1944 This is done with a new flag PKCS7_STREAM. When this flag is set
1945 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1946 is done after the data is output (and digests calculated) in
1947 SMIME_write_PKCS7().
1950 *) Add full support for -rpath/-R, both in shared libraries and
1951 applications, at least on the platforms where it's known how
1955 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1956 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1957 will now compute a table of multiples of the generator that
1958 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1959 faster (notably in the case of a single point multiplication,
1960 scalar * generator).
1961 [Nils Larsch, Bodo Moeller]
1963 *) IPv6 support for certificate extensions. The various extensions
1964 which use the IP:a.b.c.d can now take IPv6 addresses using the
1965 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1969 *) Added an ENGINE that implements RSA by performing private key
1970 exponentiations with the GMP library. The conversions to and from
1971 GMP's mpz_t format aren't optimised nor are any montgomery forms
1972 cached, and on x86 it appears OpenSSL's own performance has caught up.
1973 However there are likely to be other architectures where GMP could
1974 provide a boost. This ENGINE is not built in by default, but it can be
1975 specified at Configure time and should be accompanied by the necessary
1976 linker additions, eg;
1977 ./config -DOPENSSL_USE_GMP -lgmp
1980 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1981 testing availability of engines with "-t" - the old behaviour is
1982 produced by increasing the feature's verbosity with "-tt".
1985 *) ECDSA routines: under certain error conditions uninitialized BN objects
1986 could be freed. Solution: make sure initialization is performed early
1987 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1991 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1992 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1993 software implementations. For DSA and DH, parameter generation can
1994 also be overriden by providing the appropriate method callbacks.
1997 *) Change the "progress" mechanism used in key-generation and
1998 primality testing to functions that take a new BN_GENCB pointer in
1999 place of callback/argument pairs. The new API functions have "_ex"
2000 postfixes and the older functions are reimplemented as wrappers for
2001 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2002 declarations of the old functions to help (graceful) attempts to
2003 migrate to the new functions. Also, the new key-generation API
2004 functions operate on a caller-supplied key-structure and return
2005 success/failure rather than returning a key or NULL - this is to
2006 help make "keygen" another member function of RSA_METHOD etc.
2008 Example for using the new callback interface:
2010 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2014 BN_GENCB_set(&my_cb, my_callback, my_arg);
2016 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2017 /* For the meaning of a, b in calls to my_callback(), see the
2018 * documentation of the function that calls the callback.
2019 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2020 * my_callback should return 1 if it wants BN_is_prime_ex()
2021 * to continue, or 0 to stop.
2026 *) Change the ZLIB compression method to be stateful, and make it
2027 available to TLS with the number defined in
2028 draft-ietf-tls-compression-04.txt.
2031 *) Add the ASN.1 structures and functions for CertificatePair, which
2032 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2034 CertificatePair ::= SEQUENCE {
2035 forward [0] Certificate OPTIONAL,
2036 reverse [1] Certificate OPTIONAL,
2037 -- at least one of the pair shall be present -- }
2039 Also implement the PEM functions to read and write certificate
2040 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2042 This needed to be defined, mostly for the sake of the LDAP
2043 attribute crossCertificatePair, but may prove useful elsewhere as
2047 *) Make it possible to inhibit symlinking of shared libraries in
2048 Makefile.shared, for Cygwin's sake.
2051 *) Extend the BIGNUM API by creating a function
2052 void BN_set_negative(BIGNUM *a, int neg);
2053 and a macro that behave like
2054 int BN_is_negative(const BIGNUM *a);
2056 to avoid the need to access 'a->neg' directly in applications.
2059 *) Implement fast modular reduction for pseudo-Mersenne primes
2060 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2061 EC_GROUP_new_curve_GFp() will now automatically use this
2063 [Nils Larsch <nla@trustcenter.de>]
2065 *) Add new lock type (CRYPTO_LOCK_BN).
2068 *) Change the ENGINE framework to automatically load engines
2069 dynamically from specific directories unless they could be
2070 found to already be built in or loaded. Move all the
2071 current engines except for the cryptodev one to a new
2073 The engines in engines/ are built as shared libraries if
2074 the "shared" options was given to ./Configure or ./config.
2075 Otherwise, they are inserted in libcrypto.a.
2076 /usr/local/ssl/engines is the default directory for dynamic
2077 engines, but that can be overriden at configure time through
2078 the usual use of --prefix and/or --openssldir, and at run
2079 time with the environment variable OPENSSL_ENGINES.
2080 [Geoff Thorpe and Richard Levitte]
2082 *) Add Makefile.shared, a helper makefile to build shared
2083 libraries. Addapt Makefile.org.
2086 *) Add version info to Win32 DLLs.
2087 [Peter 'Luna' Runestig" <peter@runestig.com>]
2089 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2090 can be added using this API to created arbitrary PKCS#12
2091 files while avoiding the low level API.
2093 New options to PKCS12_create(), key or cert can be NULL and
2094 will then be omitted from the output file. The encryption
2095 algorithm NIDs can be set to -1 for no encryption, the mac
2096 iteration count can be set to 0 to omit the mac.
2098 Enhance pkcs12 utility by making the -nokeys and -nocerts
2099 options work when creating a PKCS#12 file. New option -nomac
2100 to omit the mac, NONE can be set for an encryption algorithm.
2101 New code is modified to use the enhanced PKCS12_create()
2102 instead of the low level API.
2105 *) Extend ASN1 encoder to support indefinite length constructed
2106 encoding. This can output sequences tags and octet strings in
2107 this form. Modify pk7_asn1.c to support indefinite length
2108 encoding. This is experimental and needs additional code to
2109 be useful, such as an ASN1 bio and some enhanced streaming
2112 Extend template encode functionality so that tagging is passed
2113 down to the template encoder.
2116 *) Let 'openssl req' fail if an argument to '-newkey' is not
2117 recognized instead of using RSA as a default.
2120 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2121 As these are not official, they are not included in "ALL";
2122 the "ECCdraft" ciphersuite group alias can be used to select them.
2123 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2125 *) Add ECDH engine support.
2126 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2128 *) Add ECDH in new directory crypto/ecdh/.
2129 [Douglas Stebila (Sun Microsystems Laboratories)]
2131 *) Let BN_rand_range() abort with an error after 100 iterations
2132 without success (which indicates a broken PRNG).
2135 *) Change BN_mod_sqrt() so that it verifies that the input value
2136 is really the square of the return value. (Previously,
2137 BN_mod_sqrt would show GIGO behaviour.)
2140 *) Add named elliptic curves over binary fields from X9.62, SECG,
2141 and WAP/WTLS; add OIDs that were still missing.
2143 [Sheueling Chang Shantz and Douglas Stebila
2144 (Sun Microsystems Laboratories)]
2146 *) Extend the EC library for elliptic curves over binary fields
2147 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2150 EC_GF2m_simple_method
2154 EC_GROUP_new_curve_GF2m
2155 EC_GROUP_set_curve_GF2m
2156 EC_GROUP_get_curve_GF2m
2157 EC_POINT_set_affine_coordinates_GF2m
2158 EC_POINT_get_affine_coordinates_GF2m
2159 EC_POINT_set_compressed_coordinates_GF2m
2161 Point compression for binary fields is disabled by default for
2162 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2165 As binary polynomials are represented as BIGNUMs, various members
2166 of the EC_GROUP and EC_POINT data structures can be shared
2167 between the implementations for prime fields and binary fields;
2168 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2169 are essentially identical to their ..._GFp counterparts.
2170 (For simplicity, the '..._GFp' prefix has been dropped from
2171 various internal method names.)
2173 An internal 'field_div' method (similar to 'field_mul' and
2174 'field_sqr') has been added; this is used only for binary fields.
2176 [Sheueling Chang Shantz and Douglas Stebila
2177 (Sun Microsystems Laboratories)]
2179 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2180 through methods ('mul', 'precompute_mult').
2182 The generic implementations (now internally called 'ec_wNAF_mul'
2183 and 'ec_wNAF_precomputed_mult') remain the default if these
2184 methods are undefined.
2186 [Sheueling Chang Shantz and Douglas Stebila
2187 (Sun Microsystems Laboratories)]
2189 *) New function EC_GROUP_get_degree, which is defined through
2190 EC_METHOD. For curves over prime fields, this returns the bit
2191 length of the modulus.
2193 [Sheueling Chang Shantz and Douglas Stebila
2194 (Sun Microsystems Laboratories)]
2196 *) New functions EC_GROUP_dup, EC_POINT_dup.
2197 (These simply call ..._new and ..._copy).
2199 [Sheueling Chang Shantz and Douglas Stebila
2200 (Sun Microsystems Laboratories)]
2202 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2203 Polynomials are represented as BIGNUMs (where the sign bit is not
2204 used) in the following functions [macros]:
2207 BN_GF2m_sub [= BN_GF2m_add]
2208 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2209 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2210 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2212 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2213 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2214 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2215 BN_GF2m_cmp [= BN_ucmp]
2217 (Note that only the 'mod' functions are actually for fields GF(2^m).
2218 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2220 For some functions, an the irreducible polynomial defining a
2221 field can be given as an 'unsigned int[]' with strictly
2222 decreasing elements giving the indices of those bits that are set;
2223 i.e., p[] represents the polynomial
2224 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2226 p[0] > p[1] > ... > p[k] = 0.
2227 This applies to the following functions:
2232 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2233 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2235 BN_GF2m_mod_sqrt_arr
2236 BN_GF2m_mod_solve_quad_arr
2240 Conversion can be performed by the following functions:
2245 bntest.c has additional tests for binary polynomial arithmetic.
2247 Two implementations for BN_GF2m_mod_div() are available.
2248 The default algorithm simply uses BN_GF2m_mod_inv() and
2249 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2250 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2251 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2253 [Sheueling Chang Shantz and Douglas Stebila
2254 (Sun Microsystems Laboratories)]
2256 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2257 functionality is disabled at compile-time.
2258 [Douglas Stebila <douglas.stebila@sun.com>]
2260 *) Change default behaviour of 'openssl asn1parse' so that more
2261 information is visible when viewing, e.g., a certificate:
2263 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2264 mode the content of non-printable OCTET STRINGs is output in a
2265 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2266 avoid the appearance of a printable string.
2267 [Nils Larsch <nla@trustcenter.de>]
2269 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2271 EC_GROUP_set_asn1_flag()
2272 EC_GROUP_get_asn1_flag()
2273 EC_GROUP_set_point_conversion_form()
2274 EC_GROUP_get_point_conversion_form()
2275 These control ASN1 encoding details:
2276 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2277 has been set to OPENSSL_EC_NAMED_CURVE.
2278 - Points are encoded in uncompressed form by default; options for
2279 asn1_for are as for point2oct, namely
2280 POINT_CONVERSION_COMPRESSED
2281 POINT_CONVERSION_UNCOMPRESSED
2282 POINT_CONVERSION_HYBRID
2284 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2287 EC_GROUP_get0_seed()
2288 EC_GROUP_get_seed_len()
2289 This is used only for ASN1 purposes (so far).
2290 [Nils Larsch <nla@trustcenter.de>]
2292 *) Add 'field_type' member to EC_METHOD, which holds the NID
2293 of the appropriate field type OID. The new function
2294 EC_METHOD_get_field_type() returns this value.
2295 [Nils Larsch <nla@trustcenter.de>]
2300 EC_POINT_point2hex()
2301 EC_POINT_hex2point()
2302 providing useful interfaces to EC_POINT_point2oct() and
2303 EC_POINT_oct2point().
2304 [Nils Larsch <nla@trustcenter.de>]
2306 *) Change internals of the EC library so that the functions
2307 EC_GROUP_set_generator()
2308 EC_GROUP_get_generator()
2309 EC_GROUP_get_order()
2310 EC_GROUP_get_cofactor()
2311 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2312 to methods, which would lead to unnecessary code duplication when
2313 adding different types of curves.
2314 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2316 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2317 arithmetic, and such that modified wNAFs are generated
2318 (which avoid length expansion in many cases).
2321 *) Add a function EC_GROUP_check_discriminant() (defined via
2322 EC_METHOD) that verifies that the curve discriminant is non-zero.
2324 Add a function EC_GROUP_check() that makes some sanity tests
2325 on a EC_GROUP, its generator and order. This includes
2326 EC_GROUP_check_discriminant().
2327 [Nils Larsch <nla@trustcenter.de>]
2329 *) Add ECDSA in new directory crypto/ecdsa/.
2331 Add applications 'openssl ecparam' and 'openssl ecdsa'
2332 (these are based on 'openssl dsaparam' and 'openssl dsa').
2334 ECDSA support is also included in various other files across the
2335 library. Most notably,
2336 - 'openssl req' now has a '-newkey ecdsa:file' option;
2337 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2338 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2339 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2340 them suitable for ECDSA where domain parameters must be
2341 extracted before the specific public key;
2342 - ECDSA engine support has been added.
2343 [Nils Larsch <nla@trustcenter.de>]
2345 *) Include some named elliptic curves, and add OIDs from X9.62,
2346 SECG, and WAP/WTLS. Each curve can be obtained from the new
2348 EC_GROUP_new_by_curve_name(),
2349 and the list of available named curves can be obtained with
2350 EC_get_builtin_curves().
2351 Also add a 'curve_name' member to EC_GROUP objects, which can be
2353 EC_GROUP_set_curve_name()
2354 EC_GROUP_get_curve_name()
2355 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2357 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2358 was actually never needed) and in BN_mul(). The removal in BN_mul()
2359 required a small change in bn_mul_part_recursive() and the addition
2360 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2361 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2362 bn_sub_words() and bn_add_words() except they take arrays with
2366 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
2368 *) In the SSL/TLS server implementation, be strict about session ID
2369 context matching (which matters if an application uses a single
2370 external cache for different purposes). Previously,
2371 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2372 set. This did ensure strict client verification, but meant that,
2373 with applications using a single external cache for quite
2374 different requirements, clients could circumvent ciphersuite
2375 restrictions for a given session ID context by starting a session
2376 in a different context.
2379 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2381 *) Cleanse PEM buffers before freeing them since they may contain
2383 [Benjamin Bennett <ben@psc.edu>]
2385 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2386 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2387 authentication-only ciphersuites.
2390 *) Since AES128 and AES256 share a single mask bit in the logic of
2391 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2392 kludge to work properly if AES128 is available and AES256 isn't.
2395 *) Expand security boundary to match 1.1.1 module.
2398 *) Remove redundant features: hash file source, editing of test vectors
2399 modify fipsld to use external fips_premain.c signature.
2402 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2403 run algorithm test programs.
2406 *) Make algorithm test programs more tolerant of whitespace.
2409 *) Have SSL/TLS server implementation tolerate "mismatched" record
2410 protocol version while receiving ClientHello even if the
2411 ClientHello is fragmented. (The server can't insist on the
2412 particular protocol version it has chosen before the ServerHello
2413 message has informed the client about his choice.)
2416 *) Load error codes if they are not already present instead of using a
2417 static variable. This allows them to be cleanly unloaded and reloaded.
2420 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2422 *) Introduce limits to prevent malicious keys being able to
2423 cause a denial of service. (CVE-2006-2940)
2424 [Steve Henson, Bodo Moeller]
2426 *) Fix ASN.1 parsing of certain invalid structures that can result
2427 in a denial of service. (CVE-2006-2937) [Steve Henson]
2429 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2430 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2432 *) Fix SSL client code which could crash if connecting to a
2433 malicious SSLv2 server. (CVE-2006-4343)
2434 [Tavis Ormandy and Will Drewry, Google Security Team]
2436 *) Change ciphersuite string processing so that an explicit
2437 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2438 will no longer include "AES128-SHA"), and any other similar
2439 ciphersuite (same bitmap) from *other* protocol versions (so that
2440 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2441 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2442 changes from 0.9.8b and 0.9.8d.
2445 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2447 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2448 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2450 *) Change the Unix randomness entropy gathering to use poll() when
2451 possible instead of select(), since the latter has some
2452 undesirable limitations.
2453 [Darryl Miles via Richard Levitte and Bodo Moeller]
2455 *) Disable rogue ciphersuites:
2457 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2458 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2459 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2461 The latter two were purportedly from
2462 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2465 Also deactive the remaining ciphersuites from
2466 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2467 unofficial, and the ID has long expired.
2470 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2471 dual-core machines) and other potential thread-safety issues.
2474 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2476 *) Adapt fipsld and the build system to link against the validated FIPS
2477 module in FIPS mode.
2480 *) Fixes for VC++ 2005 build under Windows.
2483 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2484 from a Windows bash shell such as MSYS. It is autodetected from the
2485 "config" script when run from a VC++ environment. Modify standard VC++
2486 build to use fipscanister.o from the GNU make build.
2489 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2491 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2492 The value now differs depending on if you build for FIPS or not.
2493 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2494 safely run with a non-FIPSed libcrypto, as it may crash because of
2495 the difference induced by this change.
2498 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2500 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2501 (part of SSL_OP_ALL). This option used to disable the
2502 countermeasure against man-in-the-middle protocol-version
2503 rollback in the SSL 2.0 server implementation, which is a bad
2504 idea. (CVE-2005-2969)
2506 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2507 for Information Security, National Institute of Advanced Industrial
2508 Science and Technology [AIST], Japan)]
2510 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2511 mainly for FIPS compliance and not fully integrated at this stage.
2514 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2515 the exponentiation using a fixed-length exponent. (Otherwise,
2516 the information leaked through timing could expose the secret key
2517 after many signatures; cf. Bleichenbacher's attack on DSA with
2521 *) Make a new fixed-window mod_exp implementation the default for
2522 RSA, DSA, and DH private-key operations so that the sequence of
2523 squares and multiplies and the memory access pattern are
2524 independent of the particular secret key. This will mitigate
2525 cache-timing and potential related attacks.
2527 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2528 and this is automatically used by BN_mod_exp_mont() if the new flag
2529 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2530 will use this BN flag for private exponents unless the flag
2531 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2532 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2534 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2536 *) Change the client implementation for SSLv23_method() and
2537 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2538 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2539 (Previously, the SSL 2.0 backwards compatible Client Hello
2540 message format would be used even with SSL_OP_NO_SSLv2.)
2543 *) Add support for smime-type MIME parameter in S/MIME messages which some
2547 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2548 a threadsafe manner. Modify rsa code to use new function and add calls
2549 to dsa and dh code (which had race conditions before).
2552 *) Include the fixed error library code in the C error file definitions
2553 instead of fixing them up at runtime. This keeps the error code
2554 structures constant.
2557 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2559 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2562 *) Fixes for newer kerberos headers. NB: the casts are needed because
2563 the 'length' field is signed on one version and unsigned on another
2564 with no (?) obvious way to tell the difference, without these VC++
2565 complains. Also the "definition" of FAR (blank) is no longer included
2566 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2567 some needed definitions.
2570 *) Undo Cygwin change.
2573 *) Added support for proxy certificates according to RFC 3820.
2574 Because they may be a security thread to unaware applications,
2575 they must be explicitely allowed in run-time. See
2576 docs/HOWTO/proxy_certificates.txt for further information.
2579 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2581 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2582 server and client random values. Previously
2583 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2584 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2586 This change has negligible security impact because:
2588 1. Server and client random values still have 24 bytes of pseudo random
2591 2. Server and client random values are sent in the clear in the initial
2594 3. The master secret is derived using the premaster secret (48 bytes in
2595 size for static RSA ciphersuites) as well as client server and random
2598 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2601 [Stephen Henson, reported by UK NISCC]
2603 *) Use Windows randomness collection on Cygwin.
2606 *) Fix hang in EGD/PRNGD query when communication socket is closed
2607 prematurely by EGD/PRNGD.
2608 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2610 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2613 *) Back-port of selected performance improvements from development
2614 branch, as well as improved support for PowerPC platforms.
2617 *) Add lots of checks for memory allocation failure, error codes to indicate
2618 failure and freeing up memory if a failure occurs.
2619 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2621 *) Add new -passin argument to dgst.
2624 *) Perform some character comparisons of different types in X509_NAME_cmp:
2625 this is needed for some certificates that reencode DNs into UTF8Strings
2626 (in violation of RFC3280) and can't or wont issue name rollover
2630 *) Make an explicit check during certificate validation to see that
2631 the CA setting in each certificate on the chain is correct. As a
2632 side effect always do the following basic checks on extensions,
2633 not just when there's an associated purpose to the check:
2635 - if there is an unhandled critical extension (unless the user
2636 has chosen to ignore this fault)
2637 - if the path length has been exceeded (if one is set at all)
2638 - that certain extensions fit the associated purpose (if one has
2642 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2644 *) Avoid a race condition when CRLs are checked in a multi threaded
2645 environment. This would happen due to the reordering of the revoked
2646 entries during signature checking and serial number lookup. Now the
2647 encoding is cached and the serial number sort performed under a lock.
2648 Add new STACK function sk_is_sorted().
2651 *) Add Delta CRL to the extension code.
2654 *) Various fixes to s3_pkt.c so alerts are sent properly.
2655 [David Holmes <d.holmes@f5.com>]
2657 *) Reduce the chances of duplicate issuer name and serial numbers (in
2658 violation of RFC3280) using the OpenSSL certificate creation utilities.
2659 This is done by creating a random 64 bit value for the initial serial
2660 number when a serial number file is created or when a self signed
2661 certificate is created using 'openssl req -x509'. The initial serial
2662 number file is created using 'openssl x509 -next_serial' in CA.pl
2663 rather than being initialized to 1.
2666 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2668 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2669 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2670 [Joe Orton, Steve Henson]
2672 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2674 [Joe Orton, Steve Henson]
2676 *) Make it possible to have multiple active certificates with the same
2677 subject in the CA index file. This is done only if the keyword
2678 'unique_subject' is set to 'no' in the main CA section (default
2679 if 'CA_default') of the configuration file. The value is saved
2680 with the database itself in a separate index attribute file,
2681 named like the index file with '.attr' appended to the name.
2684 *) X509 verify fixes. Disable broken certificate workarounds when
2685 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2686 keyUsage extension present. Don't accept CRLs with unhandled critical
2687 extensions: since verify currently doesn't process CRL extensions this
2688 rejects a CRL with *any* critical extensions. Add new verify error codes
2692 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2693 A clarification of RFC2560 will require the use of OCTET STRINGs and
2694 some implementations cannot handle the current raw format. Since OpenSSL
2695 copies and compares OCSP nonces as opaque blobs without any attempt at
2696 parsing them this should not create any compatibility issues.
2699 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2700 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2701 this HMAC (and other) operations are several times slower than OpenSSL
2705 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2706 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2708 *) Use the correct content when signing type "other".
2711 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2713 *) Fix various bugs revealed by running the NISCC test suite:
2715 Stop out of bounds reads in the ASN1 code when presented with
2716 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2718 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2720 If verify callback ignores invalid public key errors don't try to check
2721 certificate signature with the NULL public key.
2725 *) New -ignore_err option in ocsp application to stop the server
2726 exiting on the first error in a request.
2729 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2730 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2734 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2735 extra data after the compression methods not only for TLS 1.0
2736 but also for SSL 3.0 (as required by the specification).
2737 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2739 *) Change X509_certificate_type() to mark the key as exported/exportable
2740 when it's 512 *bits* long, not 512 bytes.
2743 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2744 blocks during encryption.
2747 *) Various fixes to base64 BIO and non blocking I/O. On write
2748 flushes were not handled properly if the BIO retried. On read
2749 data was not being buffered properly and had various logic bugs.
2750 This also affects blocking I/O when the data being decoded is a
2754 *) Various S/MIME bugfixes and compatibility changes:
2755 output correct application/pkcs7 MIME type if
2756 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2757 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2758 of files as .eml work). Correctly handle very long lines in MIME
2762 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2764 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2765 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2766 a protocol version number mismatch like a decryption error
2767 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2770 *) Turn on RSA blinding by default in the default implementation
2771 to avoid a timing attack. Applications that don't want it can call
2772 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2773 They would be ill-advised to do so in most cases.
2774 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2776 *) Change RSA blinding code so that it works when the PRNG is not
2777 seeded (in this case, the secret RSA exponent is abused as
2778 an unpredictable seed -- if it is not unpredictable, there
2779 is no point in blinding anyway). Make RSA blinding thread-safe
2780 by remembering the creator's thread ID in rsa->blinding and
2781 having all other threads use local one-time blinding factors
2782 (this requires more computation than sharing rsa->blinding, but
2783 avoids excessive locking; and if an RSA object is not shared
2784 between threads, blinding will still be very fast).
2787 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2788 ENGINE as defaults for all supported algorithms irrespective of
2789 the 'flags' parameter. 'flags' is now honoured, so applications
2790 should make sure they are passing it correctly.
2793 *) Target "mingw" now allows native Windows code to be generated in
2794 the Cygwin environment as well as with the MinGW compiler.
2797 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2799 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2800 via timing by performing a MAC computation even if incorrrect
2801 block cipher padding has been found. This is a countermeasure
2802 against active attacks where the attacker has to distinguish
2803 between bad padding and a MAC verification error. (CVE-2003-0078)
2805 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2806 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2807 Martin Vuagnoux (EPFL, Ilion)]
2809 *) Make the no-err option work as intended. The intention with no-err
2810 is not to have the whole error stack handling routines removed from
2811 libcrypto, it's only intended to remove all the function name and
2812 reason texts, thereby removing some of the footprint that may not
2813 be interesting if those errors aren't displayed anyway.
2815 NOTE: it's still possible for any application or module to have it's
2816 own set of error texts inserted. The routines are there, just not
2817 used by default when no-err is given.
2820 *) Add support for FreeBSD on IA64.
2821 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2823 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2824 Kerberos function mit_des_cbc_cksum(). Before this change,
2825 the value returned by DES_cbc_cksum() was like the one from
2826 mit_des_cbc_cksum(), except the bytes were swapped.
2827 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2829 *) Allow an application to disable the automatic SSL chain building.
2830 Before this a rather primitive chain build was always performed in
2831 ssl3_output_cert_chain(): an application had no way to send the
2832 correct chain if the automatic operation produced an incorrect result.
2834 Now the chain builder is disabled if either:
2836 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2838 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2840 The reasoning behind this is that an application would not want the
2841 auto chain building to take place if extra chain certificates are
2842 present and it might also want a means of sending no additional
2843 certificates (for example the chain has two certificates and the
2847 *) Add the possibility to build without the ENGINE framework.
2848 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2850 *) Under Win32 gmtime() can return NULL: check return value in
2851 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2854 *) DSA routines: under certain error conditions uninitialized BN objects
2855 could be freed. Solution: make sure initialization is performed early
2856 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2857 Nils Larsch <nla@trustcenter.de> via PR#459)
2860 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2861 checked on reconnect on the client side, therefore session resumption
2862 could still fail with a "ssl session id is different" error. This
2863 behaviour is masked when SSL_OP_ALL is used due to
2864 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2865 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2866 followup to PR #377.
2869 *) IA-32 assembler support enhancements: unified ELF targets, support
2870 for SCO/Caldera platforms, fix for Cygwin shared build.
2873 *) Add support for FreeBSD on sparc64. As a consequence, support for
2874 FreeBSD on non-x86 processors is separate from x86 processors on
2875 the config script, much like the NetBSD support.
2876 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2878 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2880 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2883 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2884 code (06) was taken as the first octet of the session ID and the last
2885 octet was ignored consequently. As a result SSLv2 client side session
2886 caching could not have worked due to the session ID mismatch between
2888 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2892 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2893 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2897 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2898 seems that in spite of existing for more than a year, many application
2899 author have done nothing to provide the necessary callbacks, which
2900 means that this particular engine will not work properly anywhere.
2901 This is a very unfortunate situation which forces us, in the name
2902 of usability, to give the hw_ncipher.c a static lock, which is part
2904 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2905 appear in 0.9.8 or later. We EXPECT application authors to have
2906 dealt properly with this when 0.9.8 is released (unless we actually
2907 make such changes in the libcrypto locking code that changes will
2908 have to be made anyway).
2911 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2912 octets have been read, EOF or an error occurs. Without this change
2913 some truncated ASN1 structures will not produce an error.
2916 *) Disable Heimdal support, since it hasn't been fully implemented.
2917 Still give the possibility to force the use of Heimdal, but with
2918 warnings and a request that patches get sent to openssl-dev.
2921 *) Add the VC-CE target, introduce the WINCE sysname, and add
2922 INSTALL.WCE and appropriate conditionals to make it build.
2923 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2925 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2926 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2927 edit numbers of the version.
2928 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2930 *) Introduce safe string copy and catenation functions
2931 (BUF_strlcpy() and BUF_strlcat()).
2932 [Ben Laurie (CHATS) and Richard Levitte]
2934 *) Avoid using fixed-size buffers for one-line DNs.
2935 [Ben Laurie (CHATS)]
2937 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2938 resizing buffers containing secrets, and use where appropriate.
2939 [Ben Laurie (CHATS)]
2941 *) Avoid using fixed size buffers for configuration file location.
2942 [Ben Laurie (CHATS)]
2944 *) Avoid filename truncation for various CA files.
2945 [Ben Laurie (CHATS)]
2947 *) Use sizeof in preference to magic numbers.
2948 [Ben Laurie (CHATS)]
2950 *) Avoid filename truncation in cert requests.
2951 [Ben Laurie (CHATS)]
2953 *) Add assertions to check for (supposedly impossible) buffer
2955 [Ben Laurie (CHATS)]
2957 *) Don't cache truncated DNS entries in the local cache (this could
2958 potentially lead to a spoofing attack).
2959 [Ben Laurie (CHATS)]
2961 *) Fix various buffers to be large enough for hex/decimal
2962 representations in a platform independent manner.
2963 [Ben Laurie (CHATS)]
2965 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2966 resizing buffers containing secrets, and use where appropriate.
2967 [Ben Laurie (CHATS)]
2969 *) Add BIO_indent() to avoid much slightly worrying code to do
2971 [Ben Laurie (CHATS)]
2973 *) Convert sprintf()/BIO_puts() to BIO_printf().
2974 [Ben Laurie (CHATS)]
2976 *) buffer_gets() could terminate with the buffer only half
2978 [Ben Laurie (CHATS)]
2980 *) Add assertions to prevent user-supplied crypto functions from
2981 overflowing internal buffers by having large block sizes, etc.
2982 [Ben Laurie (CHATS)]
2984 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2986 [Ben Laurie (CHATS)]
2988 *) Eliminate unused copy of key in RC4.
2989 [Ben Laurie (CHATS)]
2991 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2992 [Ben Laurie (CHATS)]
2994 *) Fix off-by-one error in EGD path.
2995 [Ben Laurie (CHATS)]
2997 *) If RANDFILE path is too long, ignore instead of truncating.
2998 [Ben Laurie (CHATS)]
3000 *) Eliminate unused and incorrectly sized X.509 structure
3002 [Ben Laurie (CHATS)]
3004 *) Eliminate unused and dangerous function knumber().
3005 [Ben Laurie (CHATS)]
3007 *) Eliminate unused and dangerous structure, KSSL_ERR.
3008 [Ben Laurie (CHATS)]
3010 *) Protect against overlong session ID context length in an encoded
3011 session object. Since these are local, this does not appear to be
3013 [Ben Laurie (CHATS)]
3015 *) Change from security patch (see 0.9.6e below) that did not affect
3016 the 0.9.6 release series:
3018 Remote buffer overflow in SSL3 protocol - an attacker could
3019 supply an oversized master key in Kerberos-enabled versions.
3021 [Ben Laurie (CHATS)]
3023 *) Change the SSL kerb5 codes to match RFC 2712.
3026 *) Make -nameopt work fully for req and add -reqopt switch.
3027 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3029 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3030 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3032 *) Make sure tests can be performed even if the corresponding algorithms
3033 have been removed entirely. This was also the last step to make
3034 OpenSSL compilable with DJGPP under all reasonable conditions.
3035 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3037 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3038 to allow version independent disabling of normally unselected ciphers,
3039 which may be activated as a side-effect of selecting a single cipher.
3041 (E.g., cipher list string "RSA" enables ciphersuites that are left
3042 out of "ALL" because they do not provide symmetric encryption.
3043 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3044 [Lutz Jaenicke, Bodo Moeller]
3046 *) Add appropriate support for separate platform-dependent build
3047 directories. The recommended way to make a platform-dependent
3048 build directory is the following (tested on Linux), maybe with
3051 # Place yourself outside of the OpenSSL source tree. In
3052 # this example, the environment variable OPENSSL_SOURCE
3053 # is assumed to contain the absolute OpenSSL source directory.
3054 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3055 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3056 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3057 mkdir -p `dirname $F`
3058 ln -s $OPENSSL_SOURCE/$F $F
3061 To be absolutely sure not to disturb the source tree, a "make clean"
3062 is a good thing. If it isn't successfull, don't worry about it,
3063 it probably means the source directory is very clean.
3066 *) Make sure any ENGINE control commands make local copies of string
3067 pointers passed to them whenever necessary. Otherwise it is possible
3068 the caller may have overwritten (or deallocated) the original string
3069 data when a later ENGINE operation tries to use the stored values.
3070 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3072 *) Improve diagnostics in file reading and command-line digests.
3073 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3075 *) Add AES modes CFB and OFB to the object database. Correct an
3076 error in AES-CFB decryption.
3079 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3080 allows existing EVP_CIPHER_CTX structures to be reused after
3081 calling EVP_*Final(). This behaviour is used by encryption
3082 BIOs and some applications. This has the side effect that
3083 applications must explicitly clean up cipher contexts with
3084 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3087 *) Check the values of dna and dnb in bn_mul_recursive before calling
3088 bn_mul_comba (a non zero value means the a or b arrays do not contain
3089 n2 elements) and fallback to bn_mul_normal if either is not zero.
3092 *) Fix escaping of non-ASCII characters when using the -subj option
3093 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3096 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3097 form for "surname", serialNumber has no short form.
3098 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3099 therefore remove "mail" short name for "internet 7".
3100 The OID for unique identifiers in X509 certificates is
3101 x500UniqueIdentifier, not uniqueIdentifier.
3102 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3105 *) Add an "init" command to the ENGINE config module and auto initialize
3106 ENGINEs. Without any "init" command the ENGINE will be initialized
3107 after all ctrl commands have been executed on it. If init=1 the
3108 ENGINE is initailized at that point (ctrls before that point are run
3109 on the uninitialized ENGINE and after on the initialized one). If
3110 init=0 then the ENGINE will not be iniatialized at all.
3113 *) Fix the 'app_verify_callback' interface so that the user-defined
3114 argument is actually passed to the callback: In the
3115 SSL_CTX_set_cert_verify_callback() prototype, the callback
3116 declaration has been changed from
3119 int (*cb)(X509_STORE_CTX *,void *);
3120 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3121 i=s->ctx->app_verify_callback(&ctx)
3122 has been changed into
3123 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3125 To update applications using SSL_CTX_set_cert_verify_callback(),
3126 a dummy argument can be added to their callback functions.
3127 [D. K. Smetters <smetters@parc.xerox.com>]
3129 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3130 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3132 *) Add and OPENSSL_LOAD_CONF define which will cause
3133 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3134 This allows older applications to transparently support certain
3135 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3136 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3137 load the config file and OPENSSL_add_all_algorithms_conf() which will
3138 always load it have also been added.
3141 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3142 Adjust NIDs and EVP layer.
3143 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3145 *) Config modules support in openssl utility.
3147 Most commands now load modules from the config file,
3148 though in a few (such as version) this isn't done
3149 because it couldn't be used for anything.
3151 In the case of ca and req the config file used is
3152 the same as the utility itself: that is the -config
3153 command line option can be used to specify an
3157 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3158 use "openssl_conf" if filename is NULL use default openssl config file.
3161 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3162 config section name. Add a new flag to tolerate a missing config file
3163 and move code to CONF_modules_load_file().
3166 *) Support for crypto accelerator cards from Accelerated Encryption
3167 Processing, www.aep.ie. (Use engine 'aep')
3168 The support was copied from 0.9.6c [engine] and adapted/corrected
3169 to work with the new engine framework.
3170 [AEP Inc. and Richard Levitte]
3172 *) Support for SureWare crypto accelerator cards from Baltimore
3173 Technologies. (Use engine 'sureware')
3174 The support was copied from 0.9.6c [engine] and adapted
3175 to work with the new engine framework.
3178 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3179 make the newer ENGINE framework commands for the CHIL engine work.
3180 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3182 *) Make it possible to produce shared libraries on ReliantUNIX.
3183 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3185 *) Add the configuration target debug-linux-ppro.
3186 Make 'openssl rsa' use the general key loading routines
3187 implemented in apps.c, and make those routines able to
3188 handle the key format FORMAT_NETSCAPE and the variant
3190 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3192 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3193 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3195 *) Add -keyform to rsautl, and document -engine.
3196 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3198 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3199 BIO_R_NO_SUCH_FILE error code rather than the generic
3200 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3203 *) Add new functions
3205 ERR_peek_last_error_line
3206 ERR_peek_last_error_line_data.
3207 These are similar to
3210 ERR_peek_error_line_data,
3211 but report on the latest error recorded rather than the first one
3212 still in the error queue.
3213 [Ben Laurie, Bodo Moeller]
3215 *) default_algorithms option in ENGINE config module. This allows things
3217 default_algorithms = ALL
3218 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3221 *) Prelminary ENGINE config module.
3224 *) New experimental application configuration code.
3227 *) Change the AES code to follow the same name structure as all other
3228 symmetric ciphers, and behave the same way. Move everything to
3229 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3230 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3232 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3233 [Ben Laurie and Theo de Raadt]
3235 *) Add option to output public keys in req command.
3236 [Massimiliano Pala madwolf@openca.org]
3238 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3239 (up to about 10% better than before for P-192 and P-224).
3242 *) New functions/macros
3244 SSL_CTX_set_msg_callback(ctx, cb)
3245 SSL_CTX_set_msg_callback_arg(ctx, arg)
3246 SSL_set_msg_callback(ssl, cb)
3247 SSL_set_msg_callback_arg(ssl, arg)
3249 to request calling a callback function
3251 void cb(int write_p, int version, int content_type,
3252 const void *buf, size_t len, SSL *ssl, void *arg)
3254 whenever a protocol message has been completely received
3255 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3256 protocol version according to which the SSL library interprets
3257 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3258 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3259 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3260 specification (change_cipher_spec(20), alert(21), handshake(22)).
3261 'buf' and 'len' point to the actual message, 'ssl' to the
3262 SSL object, and 'arg' is the application-defined value set by
3263 SSL[_CTX]_set_msg_callback_arg().
3265 'openssl s_client' and 'openssl s_server' have new '-msg' options
3266 to enable a callback that displays all protocol messages.
3269 *) Change the shared library support so shared libraries are built as
3270 soon as the corresponding static library is finished, and thereby get
3271 openssl and the test programs linked against the shared library.
3272 This still only happens when the keyword "shard" has been given to
3273 the configuration scripts.
3275 NOTE: shared library support is still an experimental thing, and
3276 backward binary compatibility is still not guaranteed.
3277 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3279 *) Add support for Subject Information Access extension.
3280 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3282 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3283 additional bytes when new memory had to be allocated, not just
3284 when reusing an existing buffer.
3287 *) New command line and configuration option 'utf8' for the req command.
3288 This allows field values to be specified as UTF8 strings.
3291 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3292 runs for the former and machine-readable output for the latter.
3295 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3296 of the e-mail address in the DN (i.e., it will go into a certificate
3297 extension only). The new configuration file option 'email_in_dn = no'
3298 has the same effect.
3299 [Massimiliano Pala madwolf@openca.org]
3301 *) Change all functions with names starting with des_ to be starting
3302 with DES_ instead. Add wrappers that are compatible with libdes,
3303 but are named _ossl_old_des_*. Finally, add macros that map the
3304 des_* symbols to the corresponding _ossl_old_des_* if libdes
3305 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3306 desired, the des_* symbols will be mapped to DES_*, with one
3309 Since we provide two compatibility mappings, the user needs to
3310 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3311 compatibility is desired. The default (i.e., when that macro
3312 isn't defined) is OpenSSL 0.9.6c compatibility.
3314 There are also macros that enable and disable the support of old
3315 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3316 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3317 are defined, the default will apply: to support the old des routines.
3319 In either case, one must include openssl/des.h to get the correct
3320 definitions. Do not try to just include openssl/des_old.h, that
3323 NOTE: This is a major break of an old API into a new one. Software
3324 authors are encouraged to switch to the DES_ style functions. Some
3325 time in the future, des_old.h and the libdes compatibility functions
3326 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3327 default), and then completely removed.
3330 *) Test for certificates which contain unsupported critical extensions.
3331 If such a certificate is found during a verify operation it is
3332 rejected by default: this behaviour can be overridden by either
3333 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3334 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3335 X509_supported_extension() has also been added which returns 1 if a
3336 particular extension is supported.
3339 *) Modify the behaviour of EVP cipher functions in similar way to digests
3340 to retain compatibility with existing code.
3343 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3344 compatibility with existing code. In particular the 'ctx' parameter does
3345 not have to be to be initialized before the call to EVP_DigestInit() and
3346 it is tidied up after a call to EVP_DigestFinal(). New function
3347 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3348 EVP_MD_CTX_copy() changed to not require the destination to be
3349 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3350 requires the destination to be valid.
3352 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3353 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3356 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3357 so that complete 'Handshake' protocol structures are kept in memory
3358 instead of overwriting 'msg_type' and 'length' with 'body' data.
3361 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3362 [Massimo Santin via Richard Levitte]
3364 *) Major restructuring to the underlying ENGINE code. This includes
3365 reduction of linker bloat, separation of pure "ENGINE" manipulation
3366 (initialisation, etc) from functionality dealing with implementations
3367 of specific crypto iterfaces. This change also introduces integrated
3368 support for symmetric ciphers and digest implementations - so ENGINEs
3369 can now accelerate these by providing EVP_CIPHER and EVP_MD
3370 implementations of their own. This is detailed in crypto/engine/README
3371 as it couldn't be adequately described here. However, there are a few
3372 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3373 were changed in the original introduction of ENGINE code have now
3374 reverted back - the hooking from this code to ENGINE is now a good
3375 deal more passive and at run-time, operations deal directly with
3376 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3377 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3378 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3379 they were not being used by the framework as there is no concept of a
3380 BIGNUM_METHOD and they could not be generalised to the new
3381 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3382 ENGINE_cpy() has been removed as it cannot be consistently defined in
3386 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3389 *) Change mkdef.pl to sort symbols that get the same entry number,
3390 and make sure the automatically generated functions ERR_load_*
3391 become part of libeay.num as well.
3394 *) New function SSL_renegotiate_pending(). This returns true once
3395 renegotiation has been requested (either SSL_renegotiate() call
3396 or HelloRequest/ClientHello receveived from the peer) and becomes
3397 false once a handshake has been completed.
3398 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3399 sends a HelloRequest, but does not ensure that a handshake takes
3400 place. SSL_renegotiate_pending() is useful for checking if the
3401 client has followed the request.)
3404 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3405 By default, clients may request session resumption even during
3406 renegotiation (if session ID contexts permit); with this option,
3407 session resumption is possible only in the first handshake.
3409 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3410 more bits available for options that should not be part of
3411 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3414 *) Add some demos for certificate and certificate request creation.
3417 *) Make maximum certificate chain size accepted from the peer application
3418 settable (SSL*_get/set_max_cert_list()), as proposed by
3419 "Douglas E. Engert" <deengert@anl.gov>.
3422 *) Add support for shared libraries for Unixware-7
3423 (Boyd Lynn Gerber <gerberb@zenez.com>).
3426 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3427 be done prior to destruction. Use this to unload error strings from
3428 ENGINEs that load their own error strings. NB: This adds two new API
3429 functions to "get" and "set" this destroy handler in an ENGINE.
3432 *) Alter all existing ENGINE implementations (except "openssl" and
3433 "openbsd") to dynamically instantiate their own error strings. This
3434 makes them more flexible to be built both as statically-linked ENGINEs
3435 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3436 Also, add stub code to each that makes building them as self-contained
3437 shared-libraries easier (see README.ENGINE).
3440 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3441 implementations into applications that are completely implemented in
3442 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3443 commands that can be used to configure what shared-library to load and
3444 to control aspects of the way it is handled. Also, made an update to
3445 the README.ENGINE file that brings its information up-to-date and
3446 provides some information and instructions on the "dynamic" ENGINE
3447 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3450 *) Make it possible to unload ranges of ERR strings with a new
3451 "ERR_unload_strings" function.
3454 *) Add a copy() function to EVP_MD.
3457 *) Make EVP_MD routines take a context pointer instead of just the
3458 md_data void pointer.
3461 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3462 that the digest can only process a single chunk of data
3463 (typically because it is provided by a piece of
3464 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3465 is only going to provide a single chunk of data, and hence the
3466 framework needn't accumulate the data for oneshot drivers.
3469 *) As with "ERR", make it possible to replace the underlying "ex_data"
3470 functions. This change also alters the storage and management of global
3471 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3472 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3473 index counters. The API functions that use this state have been changed
3474 to take a "class_index" rather than pointers to the class's local STACK
3475 and counter, and there is now an API function to dynamically create new
3476 classes. This centralisation allows us to (a) plug a lot of the
3477 thread-safety problems that existed, and (b) makes it possible to clean
3478 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3479 such data would previously have always leaked in application code and
3480 workarounds were in place to make the memory debugging turn a blind eye
3481 to it. Application code that doesn't use this new function will still
3482 leak as before, but their memory debugging output will announce it now
3483 rather than letting it slide.
3485 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3486 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3487 has a return value to indicate success or failure.
3490 *) Make it possible to replace the underlying "ERR" functions such that the
3491 global state (2 LHASH tables and 2 locks) is only used by the "default"
3492 implementation. This change also adds two functions to "get" and "set"
3493 the implementation prior to it being automatically set the first time
3494 any other ERR function takes place. Ie. an application can call "get",
3495 pass the return value to a module it has just loaded, and that module
3496 can call its own "set" function using that value. This means the
3497 module's "ERR" operations will use (and modify) the error state in the
3498 application and not in its own statically linked copy of OpenSSL code.
3501 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3502 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3503 the operation, and provides a more encapsulated way for external code
3504 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3505 to use these functions rather than manually incrementing the counts.
3507 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3510 *) Add EVP test program.
3513 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3516 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3517 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3518 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3519 These allow a CRL to be built without having to access X509_CRL fields
3520 directly. Modify 'ca' application to use new functions.
3523 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3524 bug workarounds. Rollback attack detection is a security feature.
3525 The problem will only arise on OpenSSL servers when TLSv1 is not
3526 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3527 Software authors not wanting to support TLSv1 will have special reasons
3528 for their choice and can explicitly enable this option.
3529 [Bodo Moeller, Lutz Jaenicke]
3531 *) Rationalise EVP so it can be extended: don't include a union of
3532 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3533 (similar to those existing for EVP_CIPHER_CTX).
3538 EVP_MD_CTX_init(&md); /* new function call */
3539 EVP_DigestInit(&md, EVP_sha1());
3540 EVP_DigestUpdate(&md, in, len);
3541 EVP_DigestFinal(&md, out, NULL);
3542 EVP_MD_CTX_cleanup(&md); /* new function call */
3546 *) Make DES key schedule conform to the usual scheme, as well as
3547 correcting its structure. This means that calls to DES functions
3548 now have to pass a pointer to a des_key_schedule instead of a
3549 plain des_key_schedule (which was actually always a pointer
3552 des_key_schedule ks;
3554 des_set_key_checked(..., &ks);
3555 des_ncbc_encrypt(..., &ks, ...);
3557 (Note that a later change renames 'des_...' into 'DES_...'.)
3560 *) Initial reduction of linker bloat: the use of some functions, such as
3561 PEM causes large amounts of unused functions to be linked in due to
3562 poor organisation. For example pem_all.c contains every PEM function
3563 which has a knock on effect of linking in large amounts of (unused)
3564 ASN1 code. Grouping together similar functions and splitting unrelated
3565 functions prevents this.
3568 *) Cleanup of EVP macros.
3571 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3572 correct _ecb suffix.
3575 *) Add initial OCSP responder support to ocsp application. The
3576 revocation information is handled using the text based index
3577 use by the ca application. The responder can either handle
3578 requests generated internally, supplied in files (for example
3579 via a CGI script) or using an internal minimal server.
3582 *) Add configuration choices to get zlib compression for TLS.
3585 *) Changes to Kerberos SSL for RFC 2712 compliance:
3586 1. Implemented real KerberosWrapper, instead of just using
3587 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3588 2. Implemented optional authenticator field of KerberosWrapper.
3590 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3591 and authenticator structs; see crypto/krb5/.
3593 Generalized Kerberos calls to support multiple Kerberos libraries.
3594 [Vern Staats <staatsvr@asc.hpc.mil>,
3595 Jeffrey Altman <jaltman@columbia.edu>
3596 via Richard Levitte]
3598 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3599 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3600 values for each of the key sizes rather than having just
3601 parameters (and 'speed' generating keys each time).
3604 *) Speed up EVP routines.
3607 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3608 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3609 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3610 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3612 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3613 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3614 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3617 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3619 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3622 *) Added the OS2-EMX target.
3623 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3625 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3626 to support NCONF routines in extension code. New function CONF_set_nconf()
3627 to allow functions which take an NCONF to also handle the old LHASH
3628 structure: this means that the old CONF compatible routines can be
3629 retained (in particular wrt extensions) without having to duplicate the
3630 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3633 *) Enhance the general user interface with mechanisms for inner control
3634 and with possibilities to have yes/no kind of prompts.
3637 *) Change all calls to low level digest routines in the library and
3638 applications to use EVP. Add missing calls to HMAC_cleanup() and
3639 don't assume HMAC_CTX can be copied using memcpy().
3640 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3642 *) Add the possibility to control engines through control names but with
3643 arbitrary arguments instead of just a string.
3644 Change the key loaders to take a UI_METHOD instead of a callback
3645 function pointer. NOTE: this breaks binary compatibility with earlier
3646 versions of OpenSSL [engine].
3647 Adapt the nCipher code for these new conditions and add a card insertion
3651 *) Enhance the general user interface with mechanisms to better support
3652 dialog box interfaces, application-defined prompts, the possibility
3653 to use defaults (for example default passwords from somewhere else)
3654 and interrupts/cancellations.
3657 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3658 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3661 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3662 tidy up some unnecessarily weird code in 'sk_new()').
3663 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3665 *) Change the key loading routines for ENGINEs to use the same kind
3666 callback (pem_password_cb) as all other routines that need this
3670 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3671 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3672 than this minimum value is recommended.
3675 *) New random seeder for OpenVMS, using the system process statistics
3676 that are easily reachable.
3679 *) Windows apparently can't transparently handle global
3680 variables defined in DLLs. Initialisations such as:
3682 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3684 wont compile. This is used by the any applications that need to
3685 declare their own ASN1 modules. This was fixed by adding the option
3686 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3687 needed for static libraries under Win32.
3690 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3691 setting of purpose and trust fields. New X509_STORE trust and
3692 purpose functions and tidy up setting in other SSL functions.
3695 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3696 structure. These are inherited by X509_STORE_CTX when it is
3697 initialised. This allows various defaults to be set in the
3698 X509_STORE structure (such as flags for CRL checking and custom
3699 purpose or trust settings) for functions which only use X509_STORE_CTX
3700 internally such as S/MIME.
3702 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3703 trust settings if they are not set in X509_STORE. This allows X509_STORE
3704 purposes and trust (in S/MIME for example) to override any set by default.
3706 Add command line options for CRL checking to smime, s_client and s_server
3710 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3711 are set then the CRL is looked up in the X509_STORE structure and
3712 its validity and signature checked, then if the certificate is found
3713 in the CRL the verify fails with a revoked error.
3715 Various new CRL related callbacks added to X509_STORE_CTX structure.
3717 Command line options added to 'verify' application to support this.
3719 This needs some additional work, such as being able to handle multiple
3720 CRLs with different times, extension based lookup (rather than just
3721 by subject name) and ultimately more complete V2 CRL extension
3725 *) Add a general user interface API (crypto/ui/). This is designed
3726 to replace things like des_read_password and friends (backward
3727 compatibility functions using this new API are provided).
3728 The purpose is to remove prompting functions from the DES code
3729 section as well as provide for prompting through dialog boxes in
3730 a window system and the like.
3733 *) Add "ex_data" support to ENGINE so implementations can add state at a
3734 per-structure level rather than having to store it globally.
3737 *) Make it possible for ENGINE structures to be copied when retrieved by
3738 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3739 This causes the "original" ENGINE structure to act like a template,
3740 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3741 operational state can be localised to each ENGINE structure, despite the
3742 fact they all share the same "methods". New ENGINE structures returned in
3743 this case have no functional references and the return value is the single
3744 structural reference. This matches the single structural reference returned
3745 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3749 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3750 needs to match any other type at all we need to manually clear the
3754 *) Changes to the "openssl engine" utility to include;
3755 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3756 about an ENGINE's available control commands.
3757 - executing control commands from command line arguments using the
3758 '-pre' and '-post' switches. '-post' is only used if '-t' is
3759 specified and the ENGINE is successfully initialised. The syntax for
3760 the individual commands are colon-separated, for example;
3761 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3764 *) New dynamic control command support for ENGINEs. ENGINEs can now
3765 declare their own commands (numbers), names (strings), descriptions,
3766 and input types for run-time discovery by calling applications. A
3767 subset of these commands are implicitly classed as "executable"
3768 depending on their input type, and only these can be invoked through
3769 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3770 can be based on user input, config files, etc). The distinction is
3771 that "executable" commands cannot return anything other than a boolean
3772 result and can only support numeric or string input, whereas some
3773 discoverable commands may only be for direct use through
3774 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3775 pointers, or other custom uses. The "executable" commands are to
3776 support parameterisations of ENGINE behaviour that can be
3777 unambiguously defined by ENGINEs and used consistently across any
3778 OpenSSL-based application. Commands have been added to all the
3779 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3780 control over shared-library paths without source code alterations.
3783 *) Changed all ENGINE implementations to dynamically allocate their
3784 ENGINEs rather than declaring them statically. Apart from this being
3785 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3786 this also allows the implementations to compile without using the
3787 internal engine_int.h header.
3790 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3791 'const' value. Any code that should be able to modify a RAND_METHOD
3792 should already have non-const pointers to it (ie. they should only
3793 modify their own ones).
3796 *) Made a variety of little tweaks to the ENGINE code.
3797 - "atalla" and "ubsec" string definitions were moved from header files
3798 to C code. "nuron" string definitions were placed in variables
3799 rather than hard-coded - allowing parameterisation of these values
3800 later on via ctrl() commands.
3801 - Removed unused "#if 0"'d code.
3802 - Fixed engine list iteration code so it uses ENGINE_free() to release
3803 structural references.
3804 - Constified the RAND_METHOD element of ENGINE structures.
3805 - Constified various get/set functions as appropriate and added
3806 missing functions (including a catch-all ENGINE_cpy that duplicates
3807 all ENGINE values onto a new ENGINE except reference counts/state).
3808 - Removed NULL parameter checks in get/set functions. Setting a method
3809 or function to NULL is a way of cancelling out a previously set
3810 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3811 and doesn't justify the extra error symbols and code.
3812 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3813 flags from engine_int.h to engine.h.
3814 - Changed prototypes for ENGINE handler functions (init(), finish(),
3815 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3818 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3819 to the algorithm using long division. The binary algorithm can be
3820 used only if the modulus is odd. On 32-bit systems, it is faster
3821 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3822 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3823 up to 450 bits. In 64-bit environments, the binary algorithm
3824 appears to be advantageous for much longer moduli; here we use it
3825 for moduli up to 2048 bits.
3828 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3829 could not support the combine flag in choice fields.
3832 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3833 extensions from a certificate request to the certificate.
3836 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3837 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3838 file: this allows the display of the certificate about to be
3839 signed to be customised, to allow certain fields to be included
3840 or excluded and extension details. The old system didn't display
3841 multicharacter strings properly, omitted fields not in the policy
3842 and couldn't display additional details such as extensions.
3845 *) Function EC_POINTs_mul for multiple scalar multiplication
3846 of an arbitrary number of elliptic curve points
3847 \sum scalars[i]*points[i],
3848 optionally including the generator defined for the EC_GROUP:
3849 scalar*generator + \sum scalars[i]*points[i].
3851 EC_POINT_mul is a simple wrapper function for the typical case
3852 that the point list has just one item (besides the optional
3856 *) First EC_METHODs for curves over GF(p):
3858 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3859 operations and provides various method functions that can also
3860 operate with faster implementations of modular arithmetic.
3862 EC_GFp_mont_method() reuses most functions that are part of
3863 EC_GFp_simple_method, but uses Montgomery arithmetic.
3865 [Bodo Moeller; point addition and point doubling
3866 implementation directly derived from source code provided by
3867 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3869 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3870 crypto/ec/ec_lib.c):
3872 Curves are EC_GROUP objects (with an optional group generator)
3873 based on EC_METHODs that are built into the library.
3875 Points are EC_POINT objects based on EC_GROUP objects.
3877 Most of the framework would be able to handle curves over arbitrary
3878 finite fields, but as there are no obvious types for fields other
3879 than GF(p), some functions are limited to that for now.
3882 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3883 that the file contains a complete HTTP response.
3886 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3887 change the def and num file printf format specifier from "%-40sXXX"
3888 to "%-39s XXX". The latter will always guarantee a space after the
3889 field while the former will cause them to run together if the field
3890 is 40 of more characters long.
3893 *) Constify the cipher and digest 'method' functions and structures
3894 and modify related functions to take constant EVP_MD and EVP_CIPHER
3898 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3899 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3902 *) Modify EVP_Digest*() routines so they now return values. Although the
3903 internal software routines can never fail additional hardware versions
3907 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3909 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3910 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3913 ERR_R_NESTED_ASN1_ERROR
3915 ERR_R_MISSING_ASN1_EOS
3916 were 4 .. 9, conflicting with
3917 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3919 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3920 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3922 Add new error code 'ERR_R_INTERNAL_ERROR'.
3925 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3929 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3930 sets the subject name for a new request or supersedes the
3931 subject name in a given request. Formats that can be parsed are
3932 'CN=Some Name, OU=myOU, C=IT'
3934 'CN=Some Name/OU=myOU/C=IT'.
3936 Add options '-batch' and '-verbose' to 'openssl req'.
3937 [Massimiliano Pala <madwolf@hackmasters.net>]
3939 *) Introduce the possibility to access global variables through
3940 functions on platform were that's the best way to handle exporting
3941 global variables in shared libraries. To enable this functionality,
3942 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3943 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3944 is normally done by Configure or something similar).
3946 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3947 in the source file (foo.c) like this:
3949 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3950 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3952 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3953 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3955 OPENSSL_DECLARE_GLOBAL(int,foo);
3956 #define foo OPENSSL_GLOBAL_REF(foo)
3957 OPENSSL_DECLARE_GLOBAL(double,bar);
3958 #define bar OPENSSL_GLOBAL_REF(bar)
3960 The #defines are very important, and therefore so is including the
3961 header file everywhere where the defined globals are used.
3963 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3964 of ASN.1 items, but that structure is a bit different.
3966 The largest change is in util/mkdef.pl which has been enhanced with
3967 better and easier to understand logic to choose which symbols should
3968 go into the Windows .def files as well as a number of fixes and code
3969 cleanup (among others, algorithm keywords are now sorted
3970 lexicographically to avoid constant rewrites).
3973 *) In BN_div() keep a copy of the sign of 'num' before writing the
3974 result to 'rm' because if rm==num the value will be overwritten
3975 and produce the wrong result if 'num' is negative: this caused
3976 problems with BN_mod() and BN_nnmod().
3979 *) Function OCSP_request_verify(). This checks the signature on an
3980 OCSP request and verifies the signer certificate. The signer
3981 certificate is just checked for a generic purpose and OCSP request
3985 *) Add OCSP_check_validity() function to check the validity of OCSP
3986 responses. OCSP responses are prepared in real time and may only
3987 be a few seconds old. Simply checking that the current time lies
3988 between thisUpdate and nextUpdate max reject otherwise valid responses
3989 caused by either OCSP responder or client clock inaccuracy. Instead
3990 we allow thisUpdate and nextUpdate to fall within a certain period of
3991 the current time. The age of the response can also optionally be
3992 checked. Two new options -validity_period and -status_age added to
3996 *) If signature or public key algorithm is unrecognized print out its
3997 OID rather that just UNKNOWN.
4000 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4001 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4002 ID to be generated from the issuer certificate alone which can then be
4003 passed to OCSP_id_issuer_cmp().
4006 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4007 ASN1 modules to export functions returning ASN1_ITEM pointers
4008 instead of the ASN1_ITEM structures themselves. This adds several
4009 new macros which allow the underlying ASN1 function/structure to
4010 be accessed transparently. As a result code should not use ASN1_ITEM
4011 references directly (such as &X509_it) but instead use the relevant
4012 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4013 use of the new ASN1 code on platforms where exporting structures
4014 is problematical (for example in shared libraries) but exporting
4015 functions returning pointers to structures is not.
4018 *) Add support for overriding the generation of SSL/TLS session IDs.
4019 These callbacks can be registered either in an SSL_CTX or per SSL.
4020 The purpose of this is to allow applications to control, if they wish,
4021 the arbitrary values chosen for use as session IDs, particularly as it
4022 can be useful for session caching in multiple-server environments. A
4023 command-line switch for testing this (and any client code that wishes
4024 to use such a feature) has been added to "s_server".
4025 [Geoff Thorpe, Lutz Jaenicke]
4027 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4028 of the form '#if defined(...) || defined(...) || ...' and
4029 '#if !defined(...) && !defined(...) && ...'. This also avoids
4030 the growing number of special cases it was previously handling.
4033 *) Make all configuration macros available for application by making
4034 sure they are available in opensslconf.h, by giving them names starting
4035 with "OPENSSL_" to avoid conflicts with other packages and by making
4036 sure e_os2.h will cover all platform-specific cases together with
4038 Additionally, it is now possible to define configuration/platform-
4039 specific names (called "system identities"). In the C code, these
4040 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4041 macro with the name beginning with "OPENSSL_SYS_", which is determined
4042 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4046 *) New option -set_serial to 'req' and 'x509' this allows the serial
4047 number to use to be specified on the command line. Previously self
4048 signed certificates were hard coded with serial number 0 and the
4049 CA options of 'x509' had to use a serial number in a file which was
4053 *) New options to 'ca' utility to support V2 CRL entry extensions.
4054 Currently CRL reason, invalidity date and hold instruction are
4055 supported. Add new CRL extensions to V3 code and some new objects.
4058 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4059 disable standard block padding (aka PKCS#5 padding) in the EVP
4060 API, which was previously mandatory. This means that the data is
4061 not padded in any way and so the total length much be a multiple
4062 of the block size, otherwise an error occurs.
4065 *) Initial (incomplete) OCSP SSL support.
4068 *) New function OCSP_parse_url(). This splits up a URL into its host,
4069 port and path components: primarily to parse OCSP URLs. New -url
4070 option to ocsp utility.
4073 *) New nonce behavior. The return value of OCSP_check_nonce() now
4074 reflects the various checks performed. Applications can decide
4075 whether to tolerate certain situations such as an absent nonce
4076 in a response when one was present in a request: the ocsp application
4077 just prints out a warning. New function OCSP_add1_basic_nonce()
4078 this is to allow responders to include a nonce in a response even if
4079 the request is nonce-less.
4082 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4083 skipped when using openssl x509 multiple times on a single input file,
4084 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4087 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4088 set string type: to handle setting ASN1_TIME structures. Fix ca
4089 utility to correctly initialize revocation date of CRLs.
4092 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4093 the clients preferred ciphersuites and rather use its own preferences.
4094 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4095 Internet Explorer by ensuring unchanged hash method during stepup.
4096 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4099 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4100 to aes and add a new 'exist' option to print out symbols that don't
4104 *) Additional options to ocsp utility to allow flags to be set and
4105 additional certificates supplied.
4108 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4109 OCSP client a number of certificate to only verify the response
4113 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4114 handle the new API. Currently only ECB, CBC modes supported. Add new
4117 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4118 Encryption Standard (AES) Ciphersuites for Transport Layer
4119 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4120 not enabled by default and were not part of the "ALL" ciphersuite
4121 alias because they were not yet official; they could be
4122 explicitly requested by specifying the "AESdraft" ciphersuite
4123 group alias. In the final release of OpenSSL 0.9.7, the group
4124 alias is called "AES" and is part of "ALL".)
4125 [Ben Laurie, Steve Henson, Bodo Moeller]
4127 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4128 request to response.
4131 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4132 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4133 extract information from a certificate request. OCSP_response_create()
4134 creates a response and optionally adds a basic response structure.
4135 OCSP_basic_add1_status() adds a complete single response to a basic
4136 response and returns the OCSP_SINGLERESP structure just added (to allow
4137 extensions to be included for example). OCSP_basic_add1_cert() adds a
4138 certificate to a basic response and OCSP_basic_sign() signs a basic
4139 response with various flags. New helper functions ASN1_TIME_check()
4140 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4141 (converts ASN1_TIME to GeneralizedTime).
4144 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4145 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4146 structure from a certificate. X509_pubkey_digest() digests the public_key
4147 contents: this is used in various key identifiers.
4150 *) Make sk_sort() tolerate a NULL argument.
4151 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4153 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4154 passed by the function are trusted implicitly. If any of them signed the
4155 response then it is assumed to be valid and is not verified.
4158 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4159 to data. This was previously part of the PKCS7 ASN1 code. This
4160 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4161 [Steve Henson, reported by Kenneth R. Robinette
4162 <support@securenetterm.com>]
4164 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4165 routines: without these tracing memory leaks is very painful.
4166 Fix leaks in PKCS12 and PKCS7 routines.
4169 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4170 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4171 effectively meant GeneralizedTime would never be used. Now it
4172 is initialised to -1 but X509_time_adj() now has to check the value
4173 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4174 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4175 [Steve Henson, reported by Kenneth R. Robinette
4176 <support@securenetterm.com>]
4178 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4179 result in a zero length in the ASN1_INTEGER structure which was
4180 not consistent with the structure when d2i_ASN1_INTEGER() was used
4181 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4182 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4183 where it did not print out a minus for negative ASN1_INTEGER.
4186 *) Add summary printout to ocsp utility. The various functions which
4187 convert status values to strings have been renamed to:
4188 OCSP_response_status_str(), OCSP_cert_status_str() and
4189 OCSP_crl_reason_str() and are no longer static. New options
4190 to verify nonce values and to disable verification. OCSP response
4191 printout format cleaned up.
4194 *) Add additional OCSP certificate checks. These are those specified
4195 in RFC2560. This consists of two separate checks: the CA of the
4196 certificate being checked must either be the OCSP signer certificate
4197 or the issuer of the OCSP signer certificate. In the latter case the
4198 OCSP signer certificate must contain the OCSP signing extended key
4199 usage. This check is performed by attempting to match the OCSP
4200 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4201 in the OCSP_CERTID structures of the response.
4204 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4205 and related routines. This uses the standard OpenSSL certificate
4206 verify routines to perform initial checks (just CA validity) and
4207 to obtain the certificate chain. Then additional checks will be
4208 performed on the chain. Currently the root CA is checked to see
4209 if it is explicitly trusted for OCSP signing. This is used to set
4210 a root CA as a global signing root: that is any certificate that
4211 chains to that CA is an acceptable OCSP signing certificate.
4214 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4215 extensions from a separate configuration file.
4216 As when reading extensions from the main configuration file,
4217 the '-extensions ...' option may be used for specifying the
4219 [Massimiliano Pala <madwolf@comune.modena.it>]
4221 *) New OCSP utility. Allows OCSP requests to be generated or
4222 read. The request can be sent to a responder and the output
4223 parsed, outputed or printed in text form. Not complete yet:
4224 still needs to check the OCSP response validity.
4227 *) New subcommands for 'openssl ca':
4228 'openssl ca -status <serial>' prints the status of the cert with
4229 the given serial number (according to the index file).
4230 'openssl ca -updatedb' updates the expiry status of certificates
4232 [Massimiliano Pala <madwolf@comune.modena.it>]
4234 *) New '-newreq-nodes' command option to CA.pl. This is like
4235 '-newreq', but calls 'openssl req' with the '-nodes' option
4236 so that the resulting key is not encrypted.
4237 [Damien Miller <djm@mindrot.org>]
4239 *) New configuration for the GNU Hurd.
4240 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4242 *) Initial code to implement OCSP basic response verify. This
4243 is currently incomplete. Currently just finds the signer's
4244 certificate and verifies the signature on the response.
4247 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4248 value of OPENSSLDIR. This is available via the new '-d' option
4249 to 'openssl version', and is also included in 'openssl version -a'.
4252 *) Allowing defining memory allocation callbacks that will be given
4253 file name and line number information in additional arguments
4254 (a const char* and an int). The basic functionality remains, as
4255 well as the original possibility to just replace malloc(),
4256 realloc() and free() by functions that do not know about these
4257 additional arguments. To register and find out the current
4258 settings for extended allocation functions, the following
4259 functions are provided:
4261 CRYPTO_set_mem_ex_functions
4262 CRYPTO_set_locked_mem_ex_functions
4263 CRYPTO_get_mem_ex_functions
4264 CRYPTO_get_locked_mem_ex_functions
4266 These work the same way as CRYPTO_set_mem_functions and friends.
4267 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4268 extended allocation function is enabled.
4269 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4270 a conventional allocation function is enabled.
4271 [Richard Levitte, Bodo Moeller]
4273 *) Finish off removing the remaining LHASH function pointer casts.
4274 There should no longer be any prototype-casting required when using
4275 the LHASH abstraction, and any casts that remain are "bugs". See
4276 the callback types and macros at the head of lhash.h for details
4277 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4280 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4281 If /dev/[u]random devices are not available or do not return enough
4282 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4284 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4285 /etc/entropy will be queried once each in this sequence, quering stops
4286 when enough entropy was collected without querying more sockets.
4289 *) Change the Unix RAND_poll() variant to be able to poll several
4290 random devices, as specified by DEVRANDOM, until a sufficient amount
4291 of data has been collected. We spend at most 10 ms on each file
4292 (select timeout) and read in non-blocking mode. DEVRANDOM now
4293 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4294 (previously it was just the string "/dev/urandom"), so on typical
4295 platforms the 10 ms delay will never occur.
4296 Also separate out the Unix variant to its own file, rand_unix.c.
4297 For VMS, there's a currently-empty rand_vms.c.
4300 *) Move OCSP client related routines to ocsp_cl.c. These
4301 provide utility functions which an application needing
4302 to issue a request to an OCSP responder and analyse the
4303 response will typically need: as opposed to those which an
4304 OCSP responder itself would need which will be added later.
4306 OCSP_request_sign() signs an OCSP request with an API similar
4307 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4308 response. OCSP_response_get1_basic() extracts basic response
4309 from response. OCSP_resp_find_status(): finds and extracts status
4310 information from an OCSP_CERTID structure (which will be created
4311 when the request structure is built). These are built from lower
4312 level functions which work on OCSP_SINGLERESP structures but
4313 wont normally be used unless the application wishes to examine
4314 extensions in the OCSP response for example.
4316 Replace nonce routines with a pair of functions.
4317 OCSP_request_add1_nonce() adds a nonce value and optionally
4318 generates a random value. OCSP_check_nonce() checks the
4319 validity of the nonce in an OCSP response.
4322 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4323 This doesn't copy the supplied OCSP_CERTID and avoids the
4324 need to free up the newly created id. Change return type
4325 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4326 This can then be used to add extensions to the request.
4327 Deleted OCSP_request_new(), since most of its functionality
4328 is now in OCSP_REQUEST_new() (and the case insensitive name
4329 clash) apart from the ability to set the request name which
4330 will be added elsewhere.
4333 *) Update OCSP API. Remove obsolete extensions argument from
4334 various functions. Extensions are now handled using the new
4335 OCSP extension code. New simple OCSP HTTP function which
4336 can be used to send requests and parse the response.
4339 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4340 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4341 uses the special reorder version of SET OF to sort the attributes
4342 and reorder them to match the encoded order. This resolves a long
4343 standing problem: a verify on a PKCS7 structure just after signing
4344 it used to fail because the attribute order did not match the
4345 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4346 it uses the received order. This is necessary to tolerate some broken
4347 software that does not order SET OF. This is handled by encoding
4348 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4349 to produce the required SET OF.
4352 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4353 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4354 files to get correct declarations of the ASN.1 item variables.
4357 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4358 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4359 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4360 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4361 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4362 ASN1_ITEM and no wrapper functions.
4365 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4366 replace the old function pointer based I/O routines. Change most of
4367 the *_d2i_bio() and *_d2i_fp() functions to use these.
4370 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4371 lines, recognice more "algorithms" that can be deselected, and make
4372 it complain about algorithm deselection that isn't recognised.
4375 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4376 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4377 to use new functions. Add NO_ASN1_OLD which can be set to remove
4378 some old style ASN1 functions: this can be used to determine if old
4379 code will still work when these eventually go away.
4382 *) New extension functions for OCSP structures, these follow the
4383 same conventions as certificates and CRLs.
4386 *) New function X509V3_add1_i2d(). This automatically encodes and
4387 adds an extension. Its behaviour can be customised with various
4388 flags to append, replace or delete. Various wrappers added for
4389 certifcates and CRLs.
4392 *) Fix to avoid calling the underlying ASN1 print routine when
4393 an extension cannot be parsed. Correct a typo in the
4394 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4397 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4398 entries for variables.
4401 *) Add functionality to apps/openssl.c for detecting locking
4402 problems: As the program is single-threaded, all we have
4403 to do is register a locking callback using an array for
4404 storing which locks are currently held by the program.
4407 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4408 SSL_get_ex_data_X509_STORE_idx(), which is used in
4409 ssl_verify_cert_chain() and thus can be called at any time
4410 during TLS/SSL handshakes so that thread-safety is essential.
4411 Unfortunately, the ex_data design is not at all suited
4412 for multi-threaded use, so it probably should be abolished.
4415 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4416 [Broadcom, tweaked and integrated by Geoff Thorpe]
4418 *) Move common extension printing code to new function
4419 X509V3_print_extensions(). Reorganise OCSP print routines and
4420 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4423 *) New function X509_signature_print() to remove duplication in some
4427 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4428 set (this was treated exactly the same as SET OF previously). This
4429 is used to reorder the STACK representing the structure to match the
4430 encoding. This will be used to get round a problem where a PKCS7
4431 structure which was signed could not be verified because the STACK
4432 order did not reflect the encoded order.
4435 *) Reimplement the OCSP ASN1 module using the new code.
4438 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4439 for its ASN1 operations. The old style function pointers still exist
4440 for now but they will eventually go away.
4443 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4444 completely replaces the old ASN1 functionality with a table driven
4445 encoder and decoder which interprets an ASN1_ITEM structure describing
4446 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4447 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4448 has also been converted to the new form.
4451 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4452 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4453 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4454 for negative moduli.
4457 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4458 of not touching the result's sign bit.
4461 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4465 *) Changed the LHASH code to use prototypes for callbacks, and created
4466 macros to declare and implement thin (optionally static) functions
4467 that provide type-safety and avoid function pointer casting for the
4468 type-specific callbacks.
4471 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4473 [Veers Staats <staatsvr@asc.hpc.mil>,
4474 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4476 *) Reformat the FAQ so the different questions and answers can be divided
4477 in sections depending on the subject.
4480 *) Have the zlib compression code load ZLIB.DLL dynamically under
4484 *) New function BN_mod_sqrt for computing square roots modulo a prime
4485 (using the probabilistic Tonelli-Shanks algorithm unless
4486 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4487 be handled deterministically).
4488 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4490 *) Make BN_mod_inverse faster by explicitly handling small quotients
4491 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4492 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4495 *) New function BN_kronecker.
4498 *) Fix BN_gcd so that it works on negative inputs; the result is
4499 positive unless both parameters are zero.
4500 Previously something reasonably close to an infinite loop was
4501 possible because numbers could be growing instead of shrinking
4502 in the implementation of Euclid's algorithm.
4505 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4506 sign of the number in question.
4508 Fix BN_is_word(a,w) to work correctly for w == 0.
4510 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4511 because its test if the absolute value of 'a' equals 'w'.
4512 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4513 it exists mostly for use in the implementations of BN_is_zero(),
4514 BN_is_one(), and BN_is_word().
4517 *) New function BN_swap.
4520 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4521 the exponentiation functions are more likely to produce reasonable
4522 results on negative inputs.
4525 *) Change BN_mod_mul so that the result is always non-negative.
4526 Previously, it could be negative if one of the factors was negative;
4527 I don't think anyone really wanted that behaviour.
4530 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4531 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4532 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4533 and add new functions:
4542 BN_mod_lshift1_quick
4546 These functions always generate non-negative results.
4548 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4549 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4551 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4552 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4553 be reduced modulo m.
4554 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4557 The following entry accidentily appeared in the CHANGES file
4558 distributed with OpenSSL 0.9.7. The modifications described in
4559 it do *not* apply to OpenSSL 0.9.7.
4561 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4562 was actually never needed) and in BN_mul(). The removal in BN_mul()
4563 required a small change in bn_mul_part_recursive() and the addition
4564 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4565 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4566 bn_sub_words() and bn_add_words() except they take arrays with
4571 *) In 'openssl passwd', verify passwords read from the terminal
4572 unless the '-salt' option is used (which usually means that
4573 verification would just waste user's time since the resulting
4574 hash is going to be compared with some given password hash)
4575 or the new '-noverify' option is used.
4577 This is an incompatible change, but it does not affect
4578 non-interactive use of 'openssl passwd' (passwords on the command
4579 line, '-stdin' option, '-in ...' option) and thus should not
4583 *) Remove all references to RSAref, since there's no more need for it.
4586 *) Make DSO load along a path given through an environment variable
4587 (SHLIB_PATH) with shl_load().
4590 *) Constify the ENGINE code as a result of BIGNUM constification.
4591 Also constify the RSA code and most things related to it. In a
4592 few places, most notable in the depth of the ASN.1 code, ugly
4593 casts back to non-const were required (to be solved at a later
4597 *) Make it so the openssl application has all engines loaded by default.
4600 *) Constify the BIGNUM routines a little more.
4603 *) Add the following functions:
4605 ENGINE_load_cswift()
4607 ENGINE_load_atalla()
4609 ENGINE_load_builtin_engines()
4611 That way, an application can itself choose if external engines that
4612 are built-in in OpenSSL shall ever be used or not. The benefit is
4613 that applications won't have to be linked with libdl or other dso
4614 libraries unless it's really needed.
4616 Changed 'openssl engine' to load all engines on demand.
4617 Changed the engine header files to avoid the duplication of some
4618 declarations (they differed!).
4621 *) 'openssl engine' can now list capabilities.
4624 *) Better error reporting in 'openssl engine'.
4627 *) Never call load_dh_param(NULL) in s_server.
4630 *) Add engine application. It can currently list engines by name and
4631 identity, and test if they are actually available.
4634 *) Improve RPM specification file by forcing symbolic linking and making
4635 sure the installed documentation is also owned by root.root.
4636 [Damien Miller <djm@mindrot.org>]
4638 *) Give the OpenSSL applications more possibilities to make use of
4639 keys (public as well as private) handled by engines.
4642 *) Add OCSP code that comes from CertCo.
4645 *) Add VMS support for the Rijndael code.
4648 *) Added untested support for Nuron crypto accelerator.
4651 *) Add support for external cryptographic devices. This code was
4652 previously distributed separately as the "engine" branch.
4653 [Geoff Thorpe, Richard Levitte]
4655 *) Rework the filename-translation in the DSO code. It is now possible to
4656 have far greater control over how a "name" is turned into a filename
4657 depending on the operating environment and any oddities about the
4658 different shared library filenames on each system.
4661 *) Support threads on FreeBSD-elf in Configure.
4664 *) Fix for SHA1 assembly problem with MASM: it produces
4665 warnings about corrupt line number information when assembling
4666 with debugging information. This is caused by the overlapping
4668 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4671 NCONF_get_number() has no error checking at all. As a replacement,
4672 NCONF_get_number_e() is defined (_e for "error checking") and is
4673 promoted strongly. The old NCONF_get_number is kept around for
4674 binary backward compatibility.
4675 Make it possible for methods to load from something other than a BIO,
4676 by providing a function pointer that is given a name instead of a BIO.
4677 For example, this could be used to load configuration data from an
4681 *) Fix for non blocking accept BIOs. Added new I/O special reason
4682 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4683 with non blocking I/O was not possible because no retry code was
4684 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4688 *) Added the beginnings of Rijndael support.
4691 *) Fix for bug in DirectoryString mask setting. Add support for
4692 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4693 to allow certificate printing to more controllable, additional
4694 'certopt' option to 'x509' to allow new printing options to be
4698 *) Clean old EAY MD5 hack from e_os.h.
4701 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4703 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4704 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4705 [Joe Orton, Steve Henson]
4707 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4709 *) Fix additional bug revealed by the NISCC test suite:
4711 Stop bug triggering large recursion when presented with
4712 certain ASN.1 tags (CVE-2003-0851)
4715 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4717 *) Fix various bugs revealed by running the NISCC test suite:
4719 Stop out of bounds reads in the ASN1 code when presented with
4720 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4722 If verify callback ignores invalid public key errors don't try to check
4723 certificate signature with the NULL public key.
4727 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4728 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4732 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4733 extra data after the compression methods not only for TLS 1.0
4734 but also for SSL 3.0 (as required by the specification).
4735 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4737 *) Change X509_certificate_type() to mark the key as exported/exportable
4738 when it's 512 *bits* long, not 512 bytes.
4741 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4743 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4744 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4745 a protocol version number mismatch like a decryption error
4746 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4749 *) Turn on RSA blinding by default in the default implementation
4750 to avoid a timing attack. Applications that don't want it can call
4751 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4752 They would be ill-advised to do so in most cases.
4753 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4755 *) Change RSA blinding code so that it works when the PRNG is not
4756 seeded (in this case, the secret RSA exponent is abused as
4757 an unpredictable seed -- if it is not unpredictable, there
4758 is no point in blinding anyway). Make RSA blinding thread-safe
4759 by remembering the creator's thread ID in rsa->blinding and
4760 having all other threads use local one-time blinding factors
4761 (this requires more computation than sharing rsa->blinding, but
4762 avoids excessive locking; and if an RSA object is not shared
4763 between threads, blinding will still be very fast).
4766 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4768 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4769 via timing by performing a MAC computation even if incorrrect
4770 block cipher padding has been found. This is a countermeasure
4771 against active attacks where the attacker has to distinguish
4772 between bad padding and a MAC verification error. (CVE-2003-0078)
4774 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4775 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4776 Martin Vuagnoux (EPFL, Ilion)]
4778 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4780 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4781 memory from it's contents. This is done with a counter that will
4782 place alternating values in each byte. This can be used to solve
4783 two issues: 1) the removal of calls to memset() by highly optimizing
4784 compilers, and 2) cleansing with other values than 0, since those can
4785 be read through on certain media, for example a swap space on disk.
4788 *) Bugfix: client side session caching did not work with external caching,
4789 because the session->cipher setting was not restored when reloading
4790 from the external cache. This problem was masked, when
4791 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4792 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4795 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4796 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4797 [Zeev Lieber <zeev-l@yahoo.com>]
4799 *) Undo an undocumented change introduced in 0.9.6e which caused
4800 repeated calls to OpenSSL_add_all_ciphers() and
4801 OpenSSL_add_all_digests() to be ignored, even after calling
4805 *) Change the default configuration reader to deal with last line not
4806 being properly terminated.
4809 *) Change X509_NAME_cmp() so it applies the special rules on handling
4810 DN values that are of type PrintableString, as well as RDNs of type
4811 emailAddress where the value has the type ia5String.
4812 [stefank@valicert.com via Richard Levitte]
4814 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4815 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4816 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4817 the bitwise-OR of the two for use by the majority of applications
4818 wanting this behaviour, and update the docs. The documented
4819 behaviour and actual behaviour were inconsistent and had been
4820 changing anyway, so this is more a bug-fix than a behavioural
4822 [Geoff Thorpe, diagnosed by Nadav Har'El]
4824 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4825 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4828 *) Fix initialization code race conditions in
4829 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4830 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4831 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4832 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4833 ssl2_get_cipher_by_char(),
4834 ssl3_get_cipher_by_char().
4835 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4837 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4838 the cached sessions are flushed, as the remove_cb() might use ex_data
4839 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4840 (see [openssl.org #212]).
4841 [Geoff Thorpe, Lutz Jaenicke]
4843 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4844 length, instead of the encoding length to d2i_ASN1_OBJECT.
4847 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4849 *) [In 0.9.6g-engine release:]
4850 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4851 [Lynn Gazis <lgazis@rainbow.com>]
4853 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4855 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4856 and get fix the header length calculation.
4857 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4858 Alon Kantor <alonk@checkpoint.com> (and others),
4861 *) Use proper error handling instead of 'assertions' in buffer
4862 overflow checks added in 0.9.6e. This prevents DoS (the
4863 assertions could call abort()).
4864 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4866 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4868 *) Add various sanity checks to asn1_get_length() to reject
4869 the ASN1 length bytes if they exceed sizeof(long), will appear
4870 negative or the content length exceeds the length of the
4872 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4874 *) Fix cipher selection routines: ciphers without encryption had no flags
4875 for the cipher strength set and where therefore not handled correctly
4876 by the selection routines (PR #130).
4879 *) Fix EVP_dsa_sha macro.
4883 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4884 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4885 that was added in OpenSSL 0.9.6d.
4887 As the countermeasure turned out to be incompatible with some
4888 broken SSL implementations, the new option is part of SSL_OP_ALL.
4889 SSL_OP_ALL is usually employed when compatibility with weird SSL
4890 implementations is desired (e.g. '-bugs' option to 's_client' and
4891 's_server'), so the new option is automatically set in many
4895 *) Changes in security patch:
4897 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4898 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4899 Air Force Materiel Command, USAF, under agreement number
4902 *) Add various sanity checks to asn1_get_length() to reject
4903 the ASN1 length bytes if they exceed sizeof(long), will appear
4904 negative or the content length exceeds the length of the
4905 supplied buffer. (CVE-2002-0659)
4906 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4908 *) Assertions for various potential buffer overflows, not known to
4910 [Ben Laurie (CHATS)]
4912 *) Various temporary buffers to hold ASCII versions of integers were
4913 too small for 64 bit platforms. (CVE-2002-0655)
4914 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4916 *) Remote buffer overflow in SSL3 protocol - an attacker could
4917 supply an oversized session ID to a client. (CVE-2002-0656)
4918 [Ben Laurie (CHATS)]
4920 *) Remote buffer overflow in SSL2 protocol - an attacker could
4921 supply an oversized client master key. (CVE-2002-0656)
4922 [Ben Laurie (CHATS)]
4924 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4926 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4927 encoded as NULL) with id-dsa-with-sha1.
4928 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4930 *) Check various X509_...() return values in apps/req.c.
4931 [Nils Larsch <nla@trustcenter.de>]
4933 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4934 an end-of-file condition would erronously be flagged, when the CRLF
4935 was just at the end of a processed block. The bug was discovered when
4936 processing data through a buffering memory BIO handing the data to a
4937 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4938 <ptsekov@syntrex.com> and Nedelcho Stanev.
4941 *) Implement a countermeasure against a vulnerability recently found
4942 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4943 before application data chunks to avoid the use of known IVs
4944 with data potentially chosen by the attacker.
4947 *) Fix length checks in ssl3_get_client_hello().
4950 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4951 to prevent ssl3_read_internal() from incorrectly assuming that
4952 ssl3_read_bytes() found application data while handshake
4953 processing was enabled when in fact s->s3->in_read_app_data was
4954 merely automatically cleared during the initial handshake.
4955 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4957 *) Fix object definitions for Private and Enterprise: they were not
4958 recognized in their shortname (=lowercase) representation. Extend
4959 obj_dat.pl to issue an error when using undefined keywords instead
4960 of silently ignoring the problem (Svenning Sorensen
4961 <sss@sss.dnsalias.net>).
4964 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4965 generators, i.e. generators other than 2 and 5. (Previously, the
4966 code did not properly initialise the 'add' and 'rem' values to
4967 BN_generate_prime().)
4969 In the new general case, we do not insist that 'generator' is
4970 actually a primitive root: This requirement is rather pointless;
4971 a generator of the order-q subgroup is just as good, if not
4975 *) Map new X509 verification errors to alerts. Discovered and submitted by
4976 Tom Wu <tom@arcot.com>.
4979 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4980 returning non-zero before the data has been completely received
4981 when using non-blocking I/O.
4982 [Bodo Moeller; problem pointed out by John Hughes]
4984 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4985 [Ben Laurie, Lutz Jaenicke]
4987 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4988 Yoram Zahavi <YoramZ@gilian.com>).
4991 *) Add information about CygWin 1.3 and on, and preserve proper
4992 configuration for the versions before that.
4993 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4995 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4996 check whether we deal with a copy of a session and do not delete from
4997 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4998 <izhar@checkpoint.com>.
5001 *) Do not store session data into the internal session cache, if it
5002 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5003 flag is set). Proposed by Aslam <aslam@funk.com>.
5006 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5010 *) [In 0.9.6d-engine release:]
5011 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5012 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5014 *) Add the configuration target linux-s390x.
5015 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5017 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5018 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5019 variable as an indication that a ClientHello message has been
5020 received. As the flag value will be lost between multiple
5021 invocations of ssl3_accept when using non-blocking I/O, the
5022 function may not be aware that a handshake has actually taken
5023 place, thus preventing a new session from being added to the
5026 To avoid this problem, we now set s->new_session to 2 instead of
5027 using a local variable.
5028 [Lutz Jaenicke, Bodo Moeller]
5030 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5031 if the SSL_R_LENGTH_MISMATCH error is detected.
5032 [Geoff Thorpe, Bodo Moeller]
5034 *) New 'shared_ldflag' column in Configure platform table.
5037 *) Fix EVP_CIPHER_mode macro.
5038 ["Dan S. Camper" <dan@bti.net>]
5040 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5041 type, we must throw them away by setting rr->length to 0.
5042 [D P Chang <dpc@qualys.com>]
5044 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5046 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5047 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5048 worked incorrectly for those cases where range = 10..._2 and
5049 3*range is two bits longer than range.)
5052 *) Only add signing time to PKCS7 structures if it is not already
5056 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5057 OBJ_ld_ce should be OBJ_id_ce.
5058 Also some ip-pda OIDs in crypto/objects/objects.txt were
5059 incorrect (cf. RFC 3039).
5060 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5062 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5063 returns early because it has nothing to do.
5064 [Andy Schneider <andy.schneider@bjss.co.uk>]
5066 *) [In 0.9.6c-engine release:]
5067 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5068 [Andy Schneider <andy.schneider@bjss.co.uk>]
5070 *) [In 0.9.6c-engine release:]
5071 Add support for Cryptographic Appliance's keyserver technology.
5072 (Use engine 'keyclient')
5073 [Cryptographic Appliances and Geoff Thorpe]
5075 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5076 is called via tools/c89.sh because arguments have to be
5077 rearranged (all '-L' options must appear before the first object
5079 [Richard Shapiro <rshapiro@abinitio.com>]
5081 *) [In 0.9.6c-engine release:]
5082 Add support for Broadcom crypto accelerator cards, backported
5084 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5086 *) [In 0.9.6c-engine release:]
5087 Add support for SureWare crypto accelerator cards from
5088 Baltimore Technologies. (Use engine 'sureware')
5089 [Baltimore Technologies and Mark Cox]
5091 *) [In 0.9.6c-engine release:]
5092 Add support for crypto accelerator cards from Accelerated
5093 Encryption Processing, www.aep.ie. (Use engine 'aep')
5094 [AEP Inc. and Mark Cox]
5096 *) Add a configuration entry for gcc on UnixWare.
5097 [Gary Benson <gbenson@redhat.com>]
5099 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5100 messages are stored in a single piece (fixed-length part and
5101 variable-length part combined) and fix various bugs found on the way.
5104 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5105 instead. BIO_gethostbyname() does not know what timeouts are
5106 appropriate, so entries would stay in cache even when they have
5108 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5110 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5111 faced with a pathologically small ClientHello fragment that does
5112 not contain client_version: Instead of aborting with an error,
5113 simply choose the highest available protocol version (i.e.,
5114 TLS 1.0 unless it is disabled). In practice, ClientHello
5115 messages are never sent like this, but this change gives us
5116 strictly correct behaviour at least for TLS.
5119 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5120 never resets s->method to s->ctx->method when called from within
5121 one of the SSL handshake functions.
5122 [Bodo Moeller; problem pointed out by Niko Baric]
5124 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5125 (sent using the client's version number) if client_version is
5126 smaller than the protocol version in use. Also change
5127 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5128 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5129 the client will at least see that alert.
5132 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5136 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5137 client receives HelloRequest while in a handshake.
5138 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5140 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5141 should end in 'break', not 'goto end' which circuments various
5142 cleanups done in state SSL_ST_OK. But session related stuff
5143 must be disabled for SSL_ST_OK in the case that we just sent a
5146 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5147 before just sending a HelloRequest.
5148 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5150 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5151 reveal whether illegal block cipher padding was found or a MAC
5152 verification error occured. (Neither SSLerr() codes nor alerts
5153 are directly visible to potential attackers, but the information
5154 may leak via logfiles.)
5156 Similar changes are not required for the SSL 2.0 implementation
5157 because the number of padding bytes is sent in clear for SSL 2.0,
5158 and the extra bytes are just ignored. However ssl/s2_pkt.c
5159 failed to verify that the purported number of padding bytes is in
5163 *) Add OpenUNIX-8 support including shared libraries
5164 (Boyd Lynn Gerber <gerberb@zenez.com>).
5167 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5168 'wristwatch attack' using huge encoding parameters (cf.
5169 James H. Manger's CRYPTO 2001 paper). Note that the
5170 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5171 encoding parameters and hence was not vulnerable.
5174 *) BN_sqr() bug fix.
5175 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5177 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5178 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5179 followed by modular reduction.
5180 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5182 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5183 equivalent based on BN_pseudo_rand() instead of BN_rand().
5186 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5187 This function was broken, as the check for a new client hello message
5188 to handle SGC did not allow these large messages.
5189 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5192 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5195 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5196 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5199 *) Rework the configuration and shared library support for Tru64 Unix.
5200 The configuration part makes use of modern compiler features and
5201 still retains old compiler behavior for those that run older versions
5202 of the OS. The shared library support part includes a variant that
5203 uses the RPATH feature, and is available through the special
5204 configuration target "alpha-cc-rpath", which will never be selected
5206 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5208 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5209 with the same message size as in ssl3_get_certificate_request().
5210 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5211 messages might inadvertently be reject as too long.
5212 [Petr Lampa <lampa@fee.vutbr.cz>]
5214 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5217 *) Modified SSL library such that the verify_callback that has been set
5218 specificly for an SSL object with SSL_set_verify() is actually being
5219 used. Before the change, a verify_callback set with this function was
5220 ignored and the verify_callback() set in the SSL_CTX at the time of
5221 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5222 to allow the necessary settings.
5225 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5226 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5227 done automatically (in contradiction to the requirements of the C
5228 standard). This made problems when used from OpenSSH.
5231 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5232 dh->length and always used
5234 BN_rand_range(priv_key, dh->p).
5236 BN_rand_range() is not necessary for Diffie-Hellman, and this
5237 specific range makes Diffie-Hellman unnecessarily inefficient if
5238 dh->length (recommended exponent length) is much smaller than the
5239 length of dh->p. We could use BN_rand_range() if the order of
5240 the subgroup was stored in the DH structure, but we only have
5245 BN_rand(priv_key, l, ...)
5247 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5253 RSA_eay_public_encrypt
5254 RSA_eay_private_decrypt
5255 RSA_eay_private_encrypt (signing)
5256 RSA_eay_public_decrypt (signature verification)
5258 (default implementations for RSA_public_encrypt,
5259 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5260 always reject numbers >= n.
5263 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5264 to synchronize access to 'locking_thread'. This is necessary on
5265 systems where access to 'locking_thread' (an 'unsigned long'
5266 variable) is not atomic.
5269 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5270 *before* setting the 'crypto_lock_rand' flag. The previous code had
5271 a race condition if 0 is a valid thread ID.
5272 [Travis Vitek <vitek@roguewave.com>]
5274 *) Add support for shared libraries under Irix.
5275 [Albert Chin-A-Young <china@thewrittenword.com>]
5277 *) Add configuration option to build on Linux on both big-endian and
5279 [Ralf Baechle <ralf@uni-koblenz.de>]
5281 *) Add the possibility to create shared libraries on HP-UX.
5284 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5286 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5287 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5288 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5289 PRNG state recovery was possible based on the output of
5290 one PRNG request appropriately sized to gain knowledge on
5291 'md' followed by enough consecutive 1-byte PRNG requests
5292 to traverse all of 'state'.
5294 1. When updating 'md_local' (the current thread's copy of 'md')
5295 during PRNG output generation, hash all of the previous
5296 'md_local' value, not just the half used for PRNG output.
5298 2. Make the number of bytes from 'state' included into the hash
5299 independent from the number of PRNG bytes requested.
5301 The first measure alone would be sufficient to avoid
5302 Markku-Juhani's attack. (Actually it had never occurred
5303 to me that the half of 'md_local' used for chaining was the
5304 half from which PRNG output bytes were taken -- I had always
5305 assumed that the secret half would be used.) The second
5306 measure makes sure that additional data from 'state' is never
5307 mixed into 'md_local' in small portions; this heuristically
5308 further strengthens the PRNG.
5311 *) Fix crypto/bn/asm/mips3.s.
5314 *) When only the key is given to "enc", the IV is undefined. Print out
5315 an error message in this case.
5318 *) Handle special case when X509_NAME is empty in X509 printing routines.
5321 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5322 positive and less than q.
5325 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5326 used: it isn't thread safe and the add_lock_callback should handle
5328 [Paul Rose <Paul.Rose@bridge.com>]
5330 *) Verify that incoming data obeys the block size in
5331 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5335 [Ulf Möller, Bodo Möller]
5337 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5338 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5339 when fixing the server behaviour for backwards-compatible 'client
5340 hello' messages. (Note that the attack is impractical against
5341 SSL 3.0 and TLS 1.0 anyway because length and version checking
5342 means that the probability of guessing a valid ciphertext is
5343 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5346 Before 0.9.5, the countermeasure (hide the error by generating a
5347 random 'decryption result') did not work properly because
5348 ERR_clear_error() was missing, meaning that SSL_get_error() would
5349 detect the supposedly ignored error.
5351 Both problems are now fixed.
5354 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5355 (previously it was 1024).
5358 *) Fix for compatibility mode trust settings: ignore trust settings
5359 unless some valid trust or reject settings are present.
5362 *) Fix for blowfish EVP: its a variable length cipher.
5365 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5366 parameters in DSA public key structures and return an error in the
5367 DSA routines if parameters are absent.
5370 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5371 in the current directory if neither $RANDFILE nor $HOME was set.
5372 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5373 caused some confusion to Windows users who haven't defined $HOME.
5374 Thus RAND_file_name() is changed again: e_os.h can define a
5375 DEFAULT_HOME, which will be used if $HOME is not set.
5376 For Windows, we use "C:"; on other platforms, we still require
5377 environment variables.
5379 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5380 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5381 having multiple threads call RAND_poll() concurrently.
5384 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5385 combination of a flag and a thread ID variable.
5386 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5387 flag), *other* threads can enter ssleay_add_bytes without obeying
5388 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5389 that they do not hold after the first thread unsets add_do_not_lock).
5392 *) Change bctest again: '-x' expressions are not available in all
5396 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5398 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5399 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5401 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5402 the default extension for executables, if any. Also, make the perl
5403 scripts that use symlink() to test if it really exists and use "cp"
5404 if it doesn't. All this made OpenSSL compilable and installable in
5408 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5409 If SEQUENCE is length is indefinite just set c->slen to the total
5410 amount of data available.
5411 [Steve Henson, reported by shige@FreeBSD.org]
5412 [This change does not apply to 0.9.7.]
5414 *) Change bctest to avoid here-documents inside command substitution
5415 (workaround for FreeBSD /bin/sh bug).
5416 For compatibility with Ultrix, avoid shell functions (introduced
5417 in the bctest version that searches along $PATH).
5420 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5421 with des_encrypt() defined on some operating systems, like Solaris
5425 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5426 On the Importance of Eliminating Errors in Cryptographic
5427 Computations, J. Cryptology 14 (2001) 2, 101-119,
5428 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5431 *) MIPS assembler BIGNUM division bug fix.
5434 *) Disabled incorrect Alpha assembler code.
5437 *) Fix PKCS#7 decode routines so they correctly update the length
5438 after reading an EOC for the EXPLICIT tag.
5440 [This change does not apply to 0.9.7.]
5442 *) Fix bug in PKCS#12 key generation routines. This was triggered
5443 if a 3DES key was generated with a 0 initial byte. Include
5444 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5445 (but broken) behaviour.
5448 *) Enhance bctest to search for a working bc along $PATH and print
5450 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5452 *) Fix memory leaks in err.c: free err_data string if necessary;
5453 don't write to the wrong index in ERR_set_error_data.
5456 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5460 *) Replace rdtsc with _emit statements for VC++ version 5.
5461 [Jeremy Cooper <jeremy@baymoo.org>]
5463 *) Make it possible to reuse SSLv2 sessions.
5466 *) In copy_email() check for >= 0 as a return value for
5467 X509_NAME_get_index_by_NID() since 0 is a valid index.
5468 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5470 *) Avoid coredump with unsupported or invalid public keys by checking if
5471 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5472 PKCS7_verify() fails with non detached data.
5475 *) Don't use getenv in library functions when run as setuid/setgid.
5476 New function OPENSSL_issetugid().
5479 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5480 due to incorrect handling of multi-threading:
5482 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5484 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5486 3. Count how many times MemCheck_off() has been called so that
5487 nested use can be treated correctly. This also avoids
5488 inband-signalling in the previous code (which relied on the
5489 assumption that thread ID 0 is impossible).
5492 *) Add "-rand" option also to s_client and s_server.
5495 *) Fix CPU detection on Irix 6.x.
5496 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5497 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5499 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5502 [This change does not apply to 0.9.7.]
5504 *) Use the cached encoding of an X509_NAME structure rather than
5505 copying it. This is apparently the reason for the libsafe "errors"
5506 but the code is actually correct.
5509 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5510 Bleichenbacher's DSA attack.
5511 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5512 to be set and top=0 forces the highest bit to be set; top=-1 is new
5513 and leaves the highest bit random.
5514 [Ulf Moeller, Bodo Moeller]
5516 *) In the NCONF_...-based implementations for CONF_... queries
5517 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5518 a temporary CONF structure with the data component set to NULL
5519 (which gives segmentation faults in lh_retrieve).
5520 Instead, use NULL for the CONF pointer in CONF_get_string and
5521 CONF_get_number (which may use environment variables) and directly
5522 return NULL from CONF_get_section.
5525 *) Fix potential buffer overrun for EBCDIC.
5528 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5529 keyUsage if basicConstraints absent for a CA.
5532 *) Make SMIME_write_PKCS7() write mail header values with a format that
5533 is more generally accepted (no spaces before the semicolon), since
5534 some programs can't parse those values properly otherwise. Also make
5535 sure BIO's that break lines after each write do not create invalid
5539 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5540 macros previously used would not encode an empty SEQUENCE OF
5541 and break the signature.
5543 [This change does not apply to 0.9.7.]
5545 *) Zero the premaster secret after deriving the master secret in
5549 *) Add some EVP_add_digest_alias registrations (as found in
5550 OpenSSL_add_all_digests()) to SSL_library_init()
5551 aka OpenSSL_add_ssl_algorithms(). This provides improved
5552 compatibility with peers using X.509 certificates
5553 with unconventional AlgorithmIdentifier OIDs.
5556 *) Fix for Irix with NO_ASM.
5557 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5559 *) ./config script fixes.
5560 [Ulf Moeller, Richard Levitte]
5562 *) Fix 'openssl passwd -1'.
5565 *) Change PKCS12_key_gen_asc() so it can cope with non null
5566 terminated strings whose length is passed in the passlen
5567 parameter, for example from PEM callbacks. This was done
5568 by adding an extra length parameter to asc2uni().
5569 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5571 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5572 call failed, free the DSA structure.
5575 *) Fix to uni2asc() to cope with zero length Unicode strings.
5576 These are present in some PKCS#12 files.
5579 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5580 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5581 when writing a 32767 byte record.
5582 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5584 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5585 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5587 (RSA objects have a reference count access to which is protected
5588 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5589 so they are meant to be shared between threads.)
5590 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5591 "Reddie, Steven" <Steven.Reddie@ca.com>]
5593 *) Fix a deadlock in CRYPTO_mem_leaks().
5596 *) Use better test patterns in bntest.
5599 *) rand_win.c fix for Borland C.
5602 *) BN_rshift bugfix for n == 0.
5605 *) Add a 'bctest' script that checks for some known 'bc' bugs
5606 so that 'make test' does not abort just because 'bc' is broken.
5609 *) Store verify_result within SSL_SESSION also for client side to
5610 avoid potential security hole. (Re-used sessions on the client side
5611 always resulted in verify_result==X509_V_OK, not using the original
5612 result of the server certificate verification.)
5615 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5616 SSL3_RT_APPLICATION_DATA, return 0.
5617 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5621 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5622 releases, have been re-implemented by renaming the previous
5623 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5624 and ssl3_read_internal, respectively, and adding 'peek' parameters
5625 to them. The new ssl[23]_{read,peek} functions are calls to
5626 ssl[23]_read_internal with the 'peek' flag set appropriately.
5627 A 'peek' parameter has also been added to ssl3_read_bytes, which
5628 does the actual work for ssl3_read_internal.
5631 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5632 the method-specific "init()" handler. Also clean up ex_data after
5633 calling the method-specific "finish()" handler. Previously, this was
5634 happening the other way round.
5637 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5638 The previous value, 12, was not always sufficient for BN_mod_exp().
5641 *) Make sure that shared libraries get the internal name engine with
5642 the full version number and not just 0. This should mark the
5643 shared libraries as not backward compatible. Of course, this should
5644 be changed again when we can guarantee backward binary compatibility.
5647 *) Fix typo in get_cert_by_subject() in by_dir.c
5648 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5650 *) Rework the system to generate shared libraries:
5652 - Make note of the expected extension for the shared libraries and
5653 if there is a need for symbolic links from for example libcrypto.so.0
5654 to libcrypto.so.0.9.7. There is extended info in Configure for
5657 - Make as few rebuilds of the shared libraries as possible.
5659 - Still avoid linking the OpenSSL programs with the shared libraries.
5661 - When installing, install the shared libraries separately from the
5665 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5667 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5668 and not in SSL_clear because the latter is also used by the
5669 accept/connect functions; previously, the settings made by
5670 SSL_set_read_ahead would be lost during the handshake.
5671 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5673 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5674 Previously, it would create entries for disableed algorithms no
5678 *) Added several new manual pages for SSL_* function.
5681 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5683 *) In ssl23_get_client_hello, generate an error message when faced
5684 with an initial SSL 3.0/TLS record that is too small to contain the
5685 first two bytes of the ClientHello message, i.e. client_version.
5686 (Note that this is a pathologic case that probably has never happened
5687 in real life.) The previous approach was to use the version number
5688 from the record header as a substitute; but our protocol choice
5689 should not depend on that one because it is not authenticated
5690 by the Finished messages.
5693 *) More robust randomness gathering functions for Windows.
5694 [Jeffrey Altman <jaltman@columbia.edu>]
5696 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5697 not set then we don't setup the error code for issuer check errors
5698 to avoid possibly overwriting other errors which the callback does
5699 handle. If an application does set the flag then we assume it knows
5700 what it is doing and can handle the new informational codes
5704 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5705 a general "ANY" type, as such it should be able to decode anything
5706 including tagged types. However it didn't check the class so it would
5707 wrongly interpret tagged types in the same way as their universal
5708 counterpart and unknown types were just rejected. Changed so that the
5709 tagged and unknown types are handled in the same way as a SEQUENCE:
5710 that is the encoding is stored intact. There is also a new type
5711 "V_ASN1_OTHER" which is used when the class is not universal, in this
5712 case we have no idea what the actual type is so we just lump them all
5716 *) On VMS, stdout may very well lead to a file that is written to
5717 in a record-oriented fashion. That means that every write() will
5718 write a separate record, which will be read separately by the
5719 programs trying to read from it. This can be very confusing.
5721 The solution is to put a BIO filter in the way that will buffer
5722 text until a linefeed is reached, and then write everything a
5723 line at a time, so every record written will be an actual line,
5724 not chunks of lines and not (usually doesn't happen, but I've
5725 seen it once) several lines in one record. BIO_f_linebuffer() is
5728 Currently, it's a VMS-only method, because that's where it has
5729 been tested well enough.
5732 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5733 it can return incorrect results.
5734 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5735 but it was in 0.9.6-beta[12].)
5738 *) Disable the check for content being present when verifying detached
5739 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5740 include zero length content when signing messages.
5743 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5744 BIO_ctrl (for BIO pairs).
5747 *) Add DSO method for VMS.
5750 *) Bug fix: Montgomery multiplication could produce results with the
5754 *) Add RPM specification openssl.spec and modify it to build three
5755 packages. The default package contains applications, application
5756 documentation and run-time libraries. The devel package contains
5757 include files, static libraries and function documentation. The
5758 doc package contains the contents of the doc directory. The original
5759 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5762 *) Add a large number of documentation files for many SSL routines.
5763 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5765 *) Add a configuration entry for Sony News 4.
5766 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5768 *) Don't set the two most significant bits to one when generating a
5769 random number < q in the DSA library.
5772 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5773 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5774 the underlying transport is blocking) if a handshake took place.
5775 (The default behaviour is needed by applications such as s_client
5776 and s_server that use select() to determine when to use SSL_read;
5777 but for applications that know in advance when to expect data, it
5778 just makes things more complicated.)
5781 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5785 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5786 work better on such systems.
5787 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5789 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5790 Update PKCS12_parse() so it copies the friendlyName and the
5791 keyid to the certificates aux info.
5794 *) Fix bug in PKCS7_verify() which caused an infinite loop
5795 if there was more than one signature.
5796 [Sven Uszpelkat <su@celocom.de>]
5798 *) Major change in util/mkdef.pl to include extra information
5799 about each symbol, as well as presentig variables as well
5800 as functions. This change means that there's n more need
5801 to rebuild the .num files when some algorithms are excluded.
5804 *) Allow the verify time to be set by an application,
5805 rather than always using the current time.
5808 *) Phase 2 verify code reorganisation. The certificate
5809 verify code now looks up an issuer certificate by a
5810 number of criteria: subject name, authority key id
5811 and key usage. It also verifies self signed certificates
5812 by the same criteria. The main comparison function is
5813 X509_check_issued() which performs these checks.
5815 Lot of changes were necessary in order to support this
5816 without completely rewriting the lookup code.
5818 Authority and subject key identifier are now cached.
5820 The LHASH 'certs' is X509_STORE has now been replaced
5821 by a STACK_OF(X509_OBJECT). This is mainly because an
5822 LHASH can't store or retrieve multiple objects with
5823 the same hash value.
5825 As a result various functions (which were all internal
5826 use only) have changed to handle the new X509_STORE
5827 structure. This will break anything that messed round
5828 with X509_STORE internally.
5830 The functions X509_STORE_add_cert() now checks for an
5831 exact match, rather than just subject name.
5833 The X509_STORE API doesn't directly support the retrieval
5834 of multiple certificates matching a given criteria, however
5835 this can be worked round by performing a lookup first
5836 (which will fill the cache with candidate certificates)
5837 and then examining the cache for matches. This is probably
5838 the best we can do without throwing out X509_LOOKUP
5839 entirely (maybe later...).
5841 The X509_VERIFY_CTX structure has been enhanced considerably.
5843 All certificate lookup operations now go via a get_issuer()
5844 callback. Although this currently uses an X509_STORE it
5845 can be replaced by custom lookups. This is a simple way
5846 to bypass the X509_STORE hackery necessary to make this
5847 work and makes it possible to use more efficient techniques
5848 in future. A very simple version which uses a simple
5849 STACK for its trusted certificate store is also provided
5850 using X509_STORE_CTX_trusted_stack().
5852 The verify_cb() and verify() callbacks now have equivalents
5853 in the X509_STORE_CTX structure.
5855 X509_STORE_CTX also has a 'flags' field which can be used
5856 to customise the verify behaviour.
5859 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5860 excludes S/MIME capabilities.
5863 *) When a certificate request is read in keep a copy of the
5864 original encoding of the signed data and use it when outputing
5865 again. Signatures then use the original encoding rather than
5866 a decoded, encoded version which may cause problems if the
5867 request is improperly encoded.
5870 *) For consistency with other BIO_puts implementations, call
5871 buffer_write(b, ...) directly in buffer_puts instead of calling
5874 In BIO_puts, increment b->num_write as in BIO_write.
5875 [Peter.Sylvester@EdelWeb.fr]
5877 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5878 BN_zero, we may not return a BIGNUM with an array consisting of
5882 *) Avoid calling abort() from within the library when problems are
5883 detected, except if preprocessor symbols have been defined
5884 (such as REF_CHECK, BN_DEBUG etc.).
5887 *) New openssl application 'rsautl'. This utility can be
5888 used for low level RSA operations. DER public key
5889 BIO/fp routines also added.
5892 *) New Configure entry and patches for compiling on QNX 4.
5893 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5895 *) A demo state-machine implementation was sponsored by
5896 Nuron (http://www.nuron.com/) and is now available in
5897 demos/state_machine.
5900 *) New options added to the 'dgst' utility for signature
5901 generation and verification.
5904 *) Unrecognized PKCS#7 content types are now handled via a
5905 catch all ASN1_TYPE structure. This allows unsupported
5906 types to be stored as a "blob" and an application can
5907 encode and decode it manually.
5910 *) Fix various signed/unsigned issues to make a_strex.c
5912 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5914 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5915 length if passed a buffer. ASN1_INTEGER_to_BN failed
5916 if passed a NULL BN and its argument was negative.
5917 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5919 *) Modification to PKCS#7 encoding routines to output definite
5920 length encoding. Since currently the whole structures are in
5921 memory there's not real point in using indefinite length
5922 constructed encoding. However if OpenSSL is compiled with
5923 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5926 *) Added BIO_vprintf() and BIO_vsnprintf().
5929 *) Added more prefixes to parse for in the the strings written
5930 through a logging bio, to cover all the levels that are available
5931 through syslog. The prefixes are now:
5933 PANIC, EMERG, EMR => LOG_EMERG
5934 ALERT, ALR => LOG_ALERT
5935 CRIT, CRI => LOG_CRIT
5936 ERROR, ERR => LOG_ERR
5937 WARNING, WARN, WAR => LOG_WARNING
5938 NOTICE, NOTE, NOT => LOG_NOTICE
5939 INFO, INF => LOG_INFO
5940 DEBUG, DBG => LOG_DEBUG
5942 and as before, if none of those prefixes are present at the
5943 beginning of the string, LOG_ERR is chosen.
5945 On Win32, the LOG_* levels are mapped according to this:
5947 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5948 LOG_WARNING => EVENTLOG_WARNING_TYPE
5949 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5953 *) Made it possible to reconfigure with just the configuration
5954 argument "reconf" or "reconfigure". The command line arguments
5955 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5956 and are retrieved from there when reconfiguring.
5960 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5962 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5965 *) The obj_dat.pl script was messing up the sorting of object
5966 names. The reason was that it compared the quoted version
5967 of strings as a result "OCSP" > "OCSP Signing" because
5968 " > SPACE. Changed script to store unquoted versions of
5969 names and add quotes on output. It was also omitting some
5970 names from the lookup table if they were given a default
5971 value (that is if SN is missing it is given the same
5972 value as LN and vice versa), these are now added on the
5973 grounds that if an object has a name we should be able to
5974 look it up. Finally added warning output when duplicate
5975 short or long names are found.
5978 *) Changes needed for Tandem NSK.
5979 [Scott Uroff <scott@xypro.com>]
5981 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5982 RSA_padding_check_SSLv23(), special padding was never detected
5983 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5984 version rollback attacks was not effective.
5986 In s23_clnt.c, don't use special rollback-attack detection padding
5987 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5988 client; similarly, in s23_srvr.c, don't do the rollback check if
5989 SSL 2.0 is the only protocol enabled in the server.
5992 *) Make it possible to get hexdumps of unprintable data with 'openssl
5993 asn1parse'. By implication, the functions ASN1_parse_dump() and
5994 BIO_dump_indent() are added.
5997 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5998 these print out strings and name structures based on various
5999 flags including RFC2253 support and proper handling of
6000 multibyte characters. Added options to the 'x509' utility
6001 to allow the various flags to be set.
6004 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6005 Also change the functions X509_cmp_current_time() and
6006 X509_gmtime_adj() work with an ASN1_TIME structure,
6007 this will enable certificates using GeneralizedTime in validity
6008 dates to be checked.
6011 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6012 negative public key encodings) on by default,
6013 NO_NEG_PUBKEY_BUG can be set to disable it.
6016 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6017 content octets. An i2c_ASN1_OBJECT is unnecessary because
6018 the encoding can be trivially obtained from the structure.
6021 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6022 not read locks (CRYPTO_r_[un]lock).
6025 *) A first attempt at creating official support for shared
6026 libraries through configuration. I've kept it so the
6027 default is static libraries only, and the OpenSSL programs
6028 are always statically linked for now, but there are
6029 preparations for dynamic linking in place.
6030 This has been tested on Linux and Tru64.
6033 *) Randomness polling function for Win9x, as described in:
6034 Peter Gutmann, Software Generation of Practically Strong
6038 *) Fix so PRNG is seeded in req if using an already existing
6042 *) New options to smime application. -inform and -outform
6043 allow alternative formats for the S/MIME message including
6044 PEM and DER. The -content option allows the content to be
6045 specified separately. This should allow things like Netscape
6046 form signing output easier to verify.
6049 *) Fix the ASN1 encoding of tags using the 'long form'.
6052 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6053 STRING types. These convert content octets to and from the
6054 underlying type. The actual tag and length octets are
6055 already assumed to have been read in and checked. These
6056 are needed because all other string types have virtually
6057 identical handling apart from the tag. By having versions
6058 of the ASN1 functions that just operate on content octets
6059 IMPLICIT tagging can be handled properly. It also allows
6060 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6061 and ASN1_INTEGER are identical apart from the tag.
6064 *) Change the handling of OID objects as follows:
6066 - New object identifiers are inserted in objects.txt, following
6067 the syntax given in objects.README.
6068 - objects.pl is used to process obj_mac.num and create a new
6070 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6073 This is currently kind of a hack, and the perl code in objects.pl
6074 isn't very elegant, but it works as I intended. The simplest way
6075 to check that it worked correctly is to look in obj_dat.h and
6076 check the array nid_objs and make sure the objects haven't moved
6077 around (this is important!). Additions are OK, as well as
6078 consistent name changes.
6081 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6084 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6085 The given file adds to whatever has already been seeded into the
6086 random pool through the RANDFILE configuration file option or
6087 environment variable, or the default random state file.
6090 *) mkstack.pl now sorts each macro group into lexical order.
6091 Previously the output order depended on the order the files
6092 appeared in the directory, resulting in needless rewriting
6096 *) Patches to make OpenSSL compile under Win32 again. Mostly
6097 work arounds for the VC++ problem that it treats func() as
6098 func(void). Also stripped out the parts of mkdef.pl that
6099 added extra typesafe functions: these no longer exist.
6102 *) Reorganisation of the stack code. The macros are now all
6103 collected in safestack.h . Each macro is defined in terms of
6104 a "stack macro" of the form SKM_<name>(type, a, b). The
6105 DEBUG_SAFESTACK is now handled in terms of function casts,
6106 this has the advantage of retaining type safety without the
6107 use of additional functions. If DEBUG_SAFESTACK is not defined
6108 then the non typesafe macros are used instead. Also modified the
6109 mkstack.pl script to handle the new form. Needs testing to see
6110 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6111 the default if no major problems. Similar behaviour for ASN1_SET_OF
6112 and PKCS12_STACK_OF.
6115 *) When some versions of IIS use the 'NET' form of private key the
6116 key derivation algorithm is different. Normally MD5(password) is
6117 used as a 128 bit RC4 key. In the modified case
6118 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6119 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6120 as the old Netscape_RSA functions except they have an additional
6121 'sgckey' parameter which uses the modified algorithm. Also added
6122 an -sgckey command line option to the rsa utility. Thanks to
6123 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6124 algorithm to openssl-dev.
6127 *) The evp_local.h macros were using 'c.##kname' which resulted in
6128 invalid expansion on some systems (SCO 5.0.5 for example).
6129 Corrected to 'c.kname'.
6130 [Phillip Porch <root@theporch.com>]
6132 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6133 a STACK of email addresses from a certificate or request, these look
6134 in the subject name and the subject alternative name extensions and
6135 omit any duplicate addresses.
6138 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6139 This makes DSA verification about 2 % faster.
6142 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6143 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6144 plus overhead for 1024 bit moduli).
6145 This makes exponentiations about 0.5 % faster for 1024 bit
6146 exponents (as measured by "openssl speed rsa2048").
6149 *) Rename memory handling macros to avoid conflicts with other
6151 Malloc => OPENSSL_malloc
6152 Malloc_locked => OPENSSL_malloc_locked
6153 Realloc => OPENSSL_realloc
6154 Free => OPENSSL_free
6157 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6158 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6161 *) CygWin32 support.
6162 [John Jarvie <jjarvie@newsguy.com>]
6164 *) The type-safe stack code has been rejigged. It is now only compiled
6165 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6166 by default all type-specific stack functions are "#define"d back to
6167 standard stack functions. This results in more streamlined output
6168 but retains the type-safety checking possibilities of the original
6172 *) The STACK code has been cleaned up, and certain type declarations
6173 that didn't make a lot of sense have been brought in line. This has
6174 also involved a cleanup of sorts in safestack.h to more correctly
6175 map type-safe stack functions onto their plain stack counterparts.
6176 This work has also resulted in a variety of "const"ifications of
6177 lots of the code, especially "_cmp" operations which should normally
6178 be prototyped with "const" parameters anyway.
6181 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6182 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6183 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6184 where all of 'md' is used each time the PRNG is used, but 'state'
6185 is used only indexed by a cyclic counter. As entropy may not be
6186 well distributed from the beginning, 'md' is important as a
6187 chaining variable. However, the output function chains only half
6188 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6189 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6190 in all of 'state' being rewritten, with the new values depending
6191 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6194 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6195 the handshake is continued after ssl_verify_cert_chain();
6196 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6197 can lead to 'unexplainable' connection aborts later.
6198 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6200 *) Major EVP API cipher revision.
6201 Add hooks for extra EVP features. This allows various cipher
6202 parameters to be set in the EVP interface. Support added for variable
6203 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6204 setting of RC2 and RC5 parameters.
6206 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6209 Remove lots of duplicated code from the EVP library. For example *every*
6210 cipher init() function handles the 'iv' in the same way according to the
6211 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6212 for CFB and OFB modes they zero ctx->num.
6214 New functionality allows removal of S/MIME code RC2 hack.
6216 Most of the routines have the same form and so can be declared in terms
6219 By shifting this to the top level EVP_CipherInit() it can be removed from
6220 all individual ciphers. If the cipher wants to handle IVs or keys
6221 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6224 Change lots of functions like EVP_EncryptUpdate() to now return a
6225 value: although software versions of the algorithms cannot fail
6226 any installed hardware versions can.
6229 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6230 this option is set, tolerate broken clients that send the negotiated
6231 protocol version number instead of the requested protocol version
6235 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6236 i.e. non-zero for export ciphersuites, zero otherwise.
6237 Previous versions had this flag inverted, inconsistent with
6238 rsa_tmp_cb (..._TMP_RSA_CB).
6239 [Bodo Moeller; problem reported by Amit Chopra]
6241 *) Add missing DSA library text string. Work around for some IIS
6242 key files with invalid SEQUENCE encoding.
6245 *) Add a document (doc/standards.txt) that list all kinds of standards
6246 and so on that are implemented in OpenSSL.
6249 *) Enhance c_rehash script. Old version would mishandle certificates
6250 with the same subject name hash and wouldn't handle CRLs at all.
6251 Added -fingerprint option to crl utility, to support new c_rehash
6255 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6258 *) Fix for SSL server purpose checking. Server checking was
6259 rejecting certificates which had extended key usage present
6260 but no ssl client purpose.
6261 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6263 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6264 is a little unclear about how a blank password is handled.
6265 Since the password in encoded as a BMPString with terminating
6266 double NULL a zero length password would end up as just the
6267 double NULL. However no password at all is different and is
6268 handled differently in the PKCS#12 key generation code. NS
6269 treats a blank password as zero length. MSIE treats it as no
6270 password on export: but it will try both on import. We now do
6271 the same: PKCS12_parse() tries zero length and no password if
6272 the password is set to "" or NULL (NULL is now a valid password:
6273 it wasn't before) as does the pkcs12 application.
6276 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6277 perror when PEM_read_bio_X509_REQ fails, the error message must
6278 be obtained from the error queue.
6281 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6282 it in ERR_remove_state if appropriate, and change ERR_get_state
6283 accordingly to avoid race conditions (this is necessary because
6284 thread_hash is no longer constant once set).
6287 *) Bugfix for linux-elf makefile.one.
6290 *) RSA_get_default_method() will now cause a default
6291 RSA_METHOD to be chosen if one doesn't exist already.
6292 Previously this was only set during a call to RSA_new()
6293 or RSA_new_method(NULL) meaning it was possible for
6294 RSA_get_default_method() to return NULL.
6297 *) Added native name translation to the existing DSO code
6298 that will convert (if the flag to do so is set) filenames
6299 that are sufficiently small and have no path information
6300 into a canonical native form. Eg. "blah" converted to
6301 "libblah.so" or "blah.dll" etc.
6304 *) New function ERR_error_string_n(e, buf, len) which is like
6305 ERR_error_string(e, buf), but writes at most 'len' bytes
6306 including the 0 terminator. For ERR_error_string_n, 'buf'
6308 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6310 *) CONF library reworked to become more general. A new CONF
6311 configuration file reader "class" is implemented as well as a
6312 new functions (NCONF_*, for "New CONF") to handle it. The now
6313 old CONF_* functions are still there, but are reimplemented to
6314 work in terms of the new functions. Also, a set of functions
6315 to handle the internal storage of the configuration data is
6316 provided to make it easier to write new configuration file
6317 reader "classes" (I can definitely see something reading a
6318 configuration file in XML format, for example), called _CONF_*,
6319 or "the configuration storage API"...
6321 The new configuration file reading functions are:
6323 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6324 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6326 NCONF_default, NCONF_WIN32
6328 NCONF_dump_fp, NCONF_dump_bio
6330 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6331 NCONF_new creates a new CONF object. This works in the same way
6332 as other interfaces in OpenSSL, like the BIO interface.
6333 NCONF_dump_* dump the internal storage of the configuration file,
6334 which is useful for debugging. All other functions take the same
6335 arguments as the old CONF_* functions wth the exception of the
6336 first that must be a `CONF *' instead of a `LHASH *'.
6338 To make it easer to use the new classes with the old CONF_* functions,
6339 the function CONF_set_default_method is provided.
6342 *) Add '-tls1' option to 'openssl ciphers', which was already
6343 mentioned in the documentation but had not been implemented.
6344 (This option is not yet really useful because even the additional
6345 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6348 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6349 OpenSSL-based applications) load shared libraries and bind to
6350 them in a portable way.
6351 [Geoff Thorpe, with contributions from Richard Levitte]
6353 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6355 *) Make sure _lrotl and _lrotr are only used with MSVC.
6357 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6358 (the default implementation of RAND_status).
6360 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6361 to '-clrext' (= clear extensions), as intended and documented.
6362 [Bodo Moeller; inconsistency pointed out by Michael Attili
6365 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6366 was larger than the MD block size.
6367 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6369 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6370 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6371 using the passed key: if the passed key was a private key the result
6372 of X509_print(), for example, would be to print out all the private key
6376 *) des_quad_cksum() byte order bug fix.
6377 [Ulf Möller, using the problem description in krb4-0.9.7, where
6378 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6380 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6382 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6384 *) For easily testing in shell scripts whether some command
6385 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6386 returns with exit code 0 iff no command of the given name is available.
6387 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6388 the output goes to stdout and nothing is printed to stderr.
6389 Additional arguments are always ignored.
6391 Since for each cipher there is a command of the same name,
6392 the 'no-cipher' compilation switches can be tested this way.
6394 ('openssl no-XXX' is not able to detect pseudo-commands such
6395 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6398 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6401 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6402 is set; it will be thrown away anyway because each handshake creates
6404 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6405 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6406 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6407 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6410 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6411 'Q' and 'R' lose their special meanings (quit/renegotiate).
6412 This is part of what -quiet does; unlike -quiet, -ign_eof
6413 does not suppress any output.
6416 *) Add compatibility options to the purpose and trust code. The
6417 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6418 accepts a certificate or CA, this was the previous behaviour,
6419 with all the associated security issues.
6421 X509_TRUST_COMPAT is the old trust behaviour: only and
6422 automatically trust self signed roots in certificate store. A
6423 new trust setting X509_TRUST_DEFAULT is used to specify that
6424 a purpose has no associated trust setting and it should instead
6425 use the value in the default purpose.
6428 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6429 and fix a memory leak.
6432 *) In util/mkerr.pl (which implements 'make errors'), preserve
6433 reason strings from the previous version of the .c file, as
6434 the default to have only downcase letters (and digits) in
6435 automatically generated reasons codes is not always appropriate.
6438 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6439 using strerror. Previously, ERR_reason_error_string() returned
6440 library names as reason strings for SYSerr; but SYSerr is a special
6441 case where small numbers are errno values, not library numbers.
6444 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6445 converts DSA parameters into DH parameters. (When creating parameters,
6446 DSA_generate_parameters is used.)
6449 *) Include 'length' (recommended exponent length) in C code generated
6450 by 'openssl dhparam -C'.
6453 *) The second argument to set_label in perlasm was already being used
6454 so couldn't be used as a "file scope" flag. Moved to third argument
6458 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6459 instead of RAND_bytes for encryption IVs and salts.
6462 *) Include RAND_status() into RAND_METHOD instead of implementing
6463 it only for md_rand.c Otherwise replacing the PRNG by calling
6464 RAND_set_rand_method would be impossible.
6467 *) Don't let DSA_generate_key() enter an infinite loop if the random
6468 number generation fails.
6471 *) New 'rand' application for creating pseudo-random output.
6474 *) Added configuration support for Linux/IA64
6475 [Rolf Haberrecker <rolf@suse.de>]
6477 *) Assembler module support for Mingw32.
6480 *) Shared library support for HPUX (in shlib/).
6481 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6483 *) Shared library support for Solaris gcc.
6484 [Lutz Behnke <behnke@trustcenter.de>]
6486 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6488 *) PKCS7_encrypt() was adding text MIME headers twice because they
6489 were added manually and by SMIME_crlf_copy().
6492 *) In bntest.c don't call BN_rand with zero bits argument.
6493 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6495 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6496 case was implemented. This caused BN_div_recp() to fail occasionally.
6499 *) Add an optional second argument to the set_label() in the perl
6500 assembly language builder. If this argument exists and is set
6501 to 1 it signals that the assembler should use a symbol whose
6502 scope is the entire file, not just the current function. This
6503 is needed with MASM which uses the format label:: for this scope.
6504 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6506 *) Change the ASN1 types so they are typedefs by default. Before
6507 almost all types were #define'd to ASN1_STRING which was causing
6508 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6512 *) Change names of new functions to the new get1/get0 naming
6513 convention: After 'get1', the caller owns a reference count
6514 and has to call ..._free; 'get0' returns a pointer to some
6515 data structure without incrementing reference counters.
6516 (Some of the existing 'get' functions increment a reference
6517 counter, some don't.)
6518 Similarly, 'set1' and 'add1' functions increase reference
6519 counters or duplicate objects.
6522 *) Allow for the possibility of temp RSA key generation failure:
6523 the code used to assume it always worked and crashed on failure.
6526 *) Fix potential buffer overrun problem in BIO_printf().
6527 [Ulf Möller, using public domain code by Patrick Powell; problem
6528 pointed out by David Sacerdote <das33@cornell.edu>]
6530 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6531 RAND_egd() and RAND_status(). In the command line application,
6532 the EGD socket can be specified like a seed file using RANDFILE
6536 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6537 Some CAs (e.g. Verisign) distribute certificates in this form.
6540 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6541 list to exclude them. This means that no special compilation option
6542 is needed to use anonymous DH: it just needs to be included in the
6546 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6547 EVP_MD_type. The old functionality is available in a new macro called
6548 EVP_MD_md(). Change code that uses it and update docs.
6551 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6552 where the 'void *' argument is replaced by a function pointer argument.
6553 Previously 'void *' was abused to point to functions, which works on
6554 many platforms, but is not correct. As these functions are usually
6555 called by macros defined in OpenSSL header files, most source code
6556 should work without changes.
6559 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6560 sections with information on -D... compiler switches used for
6561 compiling the library so that applications can see them. To enable
6562 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6563 must be defined. E.g.,
6564 #define OPENSSL_ALGORITHM_DEFINES
6565 #include <openssl/opensslconf.h>
6566 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6567 [Richard Levitte, Ulf and Bodo Möller]
6569 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6573 *) Change the 'other' type in certificate aux info to a STACK_OF
6574 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6575 the required ASN1 format: arbitrary types determined by an OID.
6578 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6579 argument to 'req'. This is not because the function is newer or
6580 better than others it just uses the work 'NEW' in the certificate
6581 request header lines. Some software needs this.
6584 *) Reorganise password command line arguments: now passwords can be
6585 obtained from various sources. Delete the PEM_cb function and make
6586 it the default behaviour: i.e. if the callback is NULL and the
6587 usrdata argument is not NULL interpret it as a null terminated pass
6588 phrase. If usrdata and the callback are NULL then the pass phrase
6589 is prompted for as usual.
6592 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6593 the support is automatically enabled. The resulting binaries will
6594 autodetect the card and use it if present.
6595 [Ben Laurie and Compaq Inc.]
6597 *) Work around for Netscape hang bug. This sends certificate request
6598 and server done in one record. Since this is perfectly legal in the
6599 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6600 the bugs/SSLv3 entry for more info.
6603 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6606 *) Add -rand argument to smime and pkcs12 applications and read/write
6610 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6613 *) Add command line password options to the remaining applications.
6616 *) Bug fix for BN_div_recp() for numerators with an even number of
6620 *) More tests in bntest.c, and changed test_bn output.
6623 *) ./config recognizes MacOS X now.
6626 *) Bug fix for BN_div() when the first words of num and divsor are
6627 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6630 *) Add support for various broken PKCS#8 formats, and command line
6631 options to produce them.
6634 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6635 get temporary BIGNUMs from a BN_CTX.
6638 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6642 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6643 include a #define from the old name to the new. The original intent
6644 was that statically linked binaries could for example just call
6645 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6646 link with digests. This never worked becayse SSLeay_add_all_digests()
6647 and SSLeay_add_all_ciphers() were in the same source file so calling
6648 one would link with the other. They are now in separate source files.
6651 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6654 *) Use a less unusual form of the Miller-Rabin primality test (it used
6655 a binary algorithm for exponentiation integrated into the Miller-Rabin
6656 loop, our standard modexp algorithms are faster).
6659 *) Support for the EBCDIC character set completed.
6660 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6662 *) Source code cleanups: use const where appropriate, eliminate casts,
6663 use void * instead of char * in lhash.
6666 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6667 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6668 this the server could overwrite ephemeral keys that the client
6672 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6673 using 50 iterations of the Rabin-Miller test.
6675 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6676 iterations of the Rabin-Miller test as required by the appendix
6677 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6678 As BN_is_prime_fasttest includes trial division, DSA parameter
6679 generation becomes much faster.
6681 This implies a change for the callback functions in DSA_is_prime
6682 and DSA_generate_parameters: The callback function is called once
6683 for each positive witness in the Rabin-Miller test, not just
6684 occasionally in the inner loop; and the parameters to the
6685 callback function now provide an iteration count for the outer
6686 loop rather than for the current invocation of the inner loop.
6687 DSA_generate_parameters additionally can call the callback
6688 function with an 'iteration count' of -1, meaning that a
6689 candidate has passed the trial division test (when q is generated
6690 from an application-provided seed, trial division is skipped).
6693 *) New function BN_is_prime_fasttest that optionally does trial
6694 division before starting the Rabin-Miller test and has
6695 an additional BN_CTX * argument (whereas BN_is_prime always
6696 has to allocate at least one BN_CTX).
6697 'callback(1, -1, cb_arg)' is called when a number has passed the
6698 trial division stage.
6701 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6705 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6708 *) New function BN_pseudo_rand().
6711 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6712 bignum version of BN_from_montgomery() with the working code from
6713 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6717 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6718 made it impossible to use the same SSL_SESSION data structure in
6719 SSL2 clients in multiple threads.
6722 *) The return value of RAND_load_file() no longer counts bytes obtained
6723 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6724 to seed the PRNG (previously an explicit byte count was required).
6725 [Ulf Möller, Bodo Möller]
6727 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6728 used (char *) instead of (void *) and had casts all over the place.
6731 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6734 *) Retain source code compatibility for BN_prime_checks macro:
6735 BN_is_prime(..., BN_prime_checks, ...) now uses
6736 BN_prime_checks_for_size to determine the appropriate number of
6737 Rabin-Miller iterations.
6740 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6741 DH_CHECK_P_NOT_SAFE_PRIME.
6742 (Check if this is true? OpenPGP calls them "strong".)
6745 *) Merge the functionality of "dh" and "gendh" programs into a new program
6746 "dhparam". The old programs are retained for now but will handle DH keys
6747 (instead of parameters) in future.
6750 *) Make the ciphers, s_server and s_client programs check the return values
6751 when a new cipher list is set.
6754 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6755 ciphers. Before when the 56bit ciphers were enabled the sorting was
6758 The syntax for the cipher sorting has been extended to support sorting by
6759 cipher-strength (using the strength_bits hard coded in the tables).
6760 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6762 Fix a bug in the cipher-command parser: when supplying a cipher command
6763 string with an "undefined" symbol (neither command nor alphanumeric
6764 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6765 an error is flagged.
6767 Due to the strength-sorting extension, the code of the
6768 ssl_create_cipher_list() function was completely rearranged. I hope that
6769 the readability was also increased :-)
6770 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6772 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6773 for the first serial number and places 2 in the serial number file. This
6774 avoids problems when the root CA is created with serial number zero and
6775 the first user certificate has the same issuer name and serial number
6779 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6780 the new code. Add documentation for this stuff.
6783 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6784 X509_*() to X509at_*() on the grounds that they don't handle X509
6785 structures and behave in an analagous way to the X509v3 functions:
6786 they shouldn't be called directly but wrapper functions should be used
6789 So we also now have some wrapper functions that call the X509at functions
6790 when passed certificate requests. (TO DO: similar things can be done with
6791 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6792 things. Some of these need some d2i or i2d and print functionality
6793 because they handle more complex structures.)
6796 *) Add missing #ifndefs that caused missing symbols when building libssl
6797 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6798 NO_RSA in ssl/s2*.c.
6799 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6801 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6802 has a return value which indicates the quality of the random data
6803 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6804 error queue. New function RAND_pseudo_bytes() generates output that is
6805 guaranteed to be unique but not unpredictable. RAND_add is like
6806 RAND_seed, but takes an extra argument for an entropy estimate
6807 (RAND_seed always assumes full entropy).
6810 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6811 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6812 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6813 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6814 false-positive rate of at most 2^-80 for random input.
6817 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6820 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6821 in the 0.9.5 release), this returns the chain
6822 from an X509_CTX structure with a dup of the stack and all
6823 the X509 reference counts upped: so the stack will exist
6824 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6827 Also make SSL_SESSION_print() print out the verify return
6831 *) Add manpage for the pkcs12 command. Also change the default
6832 behaviour so MAC iteration counts are used unless the new
6833 -nomaciter option is used. This improves file security and
6834 only older versions of MSIE (4.0 for example) need it.
6837 *) Honor the no-xxx Configure options when creating .DEF files.
6840 *) Add PKCS#10 attributes to field table: challengePassword,
6841 unstructuredName and unstructuredAddress. These are taken from
6842 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6843 international characters are used.
6845 More changes to X509_ATTRIBUTE code: allow the setting of types
6846 based on strings. Remove the 'loc' parameter when adding
6847 attributes because these will be a SET OF encoding which is sorted
6851 *) Initial changes to the 'req' utility to allow request generation
6852 automation. This will allow an application to just generate a template
6853 file containing all the field values and have req construct the
6856 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6857 used all over the place including certificate requests and PKCS#7
6858 structures. They are currently handled manually where necessary with
6859 some primitive wrappers for PKCS#7. The new functions behave in a
6860 manner analogous to the X509 extension functions: they allow
6861 attributes to be looked up by NID and added.
6863 Later something similar to the X509V3 code would be desirable to
6864 automatically handle the encoding, decoding and printing of the
6865 more complex types. The string types like challengePassword can
6866 be handled by the string table functions.
6868 Also modified the multi byte string table handling. Now there is
6869 a 'global mask' which masks out certain types. The table itself
6870 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6871 is useful when for example there is only one permissible type
6872 (as in countryName) and using the mask might result in no valid
6876 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6877 SSL_get_peer_finished to allow applications to obtain the latest
6878 Finished messages sent to the peer or expected from the peer,
6879 respectively. (SSL_get_peer_finished is usually the Finished message
6880 actually received from the peer, otherwise the protocol will be aborted.)
6882 As the Finished message are message digests of the complete handshake
6883 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6884 be used for external authentication procedures when the authentication
6885 provided by SSL/TLS is not desired or is not enough.
6888 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6889 the host supports BWX extension and if Compaq C is present on the
6890 $PATH. Just exploiting of the BWX extension results in 20-30%
6891 performance kick for some algorithms, e.g. DES and RC4 to mention
6892 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6896 *) Add support for MS "fast SGC". This is arguably a violation of the
6897 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6898 weak crypto and after checking the certificate is SGC a second one
6899 with strong crypto. MS SGC stops the first handshake after receiving
6900 the server certificate message and sends a second client hello. Since
6901 a server will typically do all the time consuming operations before
6902 expecting any further messages from the client (server key exchange
6903 is the most expensive) there is little difference between the two.
6905 To get OpenSSL to support MS SGC we have to permit a second client
6906 hello message after we have sent server done. In addition we have to
6907 reset the MAC if we do get this second client hello.
6910 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6911 if a DER encoded private key is RSA or DSA traditional format. Changed
6912 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6913 format DER encoded private key. Newer code should use PKCS#8 format which
6914 has the key type encoded in the ASN1 structure. Added DER private key
6915 support to pkcs8 application.
6918 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6919 ciphersuites has been selected (as required by the SSL 3/TLS 1
6920 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6921 is set, we interpret this as a request to violate the specification
6922 (the worst that can happen is a handshake failure, and 'correct'
6923 behaviour would result in a handshake failure anyway).
6926 *) In SSL_CTX_add_session, take into account that there might be multiple
6927 SSL_SESSION structures with the same session ID (e.g. when two threads
6928 concurrently obtain them from an external cache).
6929 The internal cache can handle only one SSL_SESSION with a given ID,
6930 so if there's a conflict, we now throw out the old one to achieve
6934 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6935 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6936 some routines that use cipher OIDs: some ciphers do not have OIDs
6937 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6941 *) Simplify the trust setting structure and code. Now we just have
6942 two sequences of OIDs for trusted and rejected settings. These will
6943 typically have values the same as the extended key usage extension
6944 and any application specific purposes.
6946 The trust checking code now has a default behaviour: it will just
6947 check for an object with the same NID as the passed id. Functions can
6948 be provided to override either the default behaviour or the behaviour
6949 for a given id. SSL client, server and email already have functions
6950 in place for compatibility: they check the NID and also return "trusted"
6951 if the certificate is self signed.
6954 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6955 traditional format into an EVP_PKEY structure.
6958 *) Add a password callback function PEM_cb() which either prompts for
6959 a password if usr_data is NULL or otherwise assumes it is a null
6960 terminated password. Allow passwords to be passed on command line
6961 environment or config files in a few more utilities.
6964 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6965 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6966 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6967 Update documentation.
6970 *) Support for ASN1 "NULL" type. This could be handled before by using
6971 ASN1_TYPE but there wasn't any function that would try to read a NULL
6972 and produce an error if it couldn't. For compatibility we also have
6973 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6974 don't allocate anything because they don't need to.
6977 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6979 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6981 *) Rebuild of the memory allocation routines used by OpenSSL code and
6982 possibly others as well. The purpose is to make an interface that
6983 provide hooks so anyone can build a separate set of allocation and
6984 deallocation routines to be used by OpenSSL, for example memory
6985 pool implementations, or something else, which was previously hard
6986 since Malloc(), Realloc() and Free() were defined as macros having
6987 the values malloc, realloc and free, respectively (except for Win32
6988 compilations). The same is provided for memory debugging code.
6989 OpenSSL already comes with functionality to find memory leaks, but
6990 this gives people a chance to debug other memory problems.
6992 With these changes, a new set of functions and macros have appeared:
6994 CRYPTO_set_mem_debug_functions() [F]
6995 CRYPTO_get_mem_debug_functions() [F]
6996 CRYPTO_dbg_set_options() [F]
6997 CRYPTO_dbg_get_options() [F]
6998 CRYPTO_malloc_debug_init() [M]
7000 The memory debug functions are NULL by default, unless the library
7001 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7002 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7003 gives the standard debugging functions that come with OpenSSL) or
7004 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7005 provided by the library user) must be used. When the standard
7006 debugging functions are used, CRYPTO_dbg_set_options can be used to
7007 request additional information:
7008 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7009 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7011 Also, things like CRYPTO_set_mem_functions will always give the
7012 expected result (the new set of functions is used for allocation
7013 and deallocation) at all times, regardless of platform and compiler
7016 To finish it up, some functions that were never use in any other
7017 way than through macros have a new API and new semantic:
7020 CRYPTO_dbg_realloc()
7023 All macros of value have retained their old syntax.
7024 [Richard Levitte and Bodo Moeller]
7026 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7027 ordering of SMIMECapabilities wasn't in "strength order" and there
7028 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7032 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7033 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7034 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7036 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7037 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7038 functionality to handle multipart/signed properly) and a utility
7039 called 'smime' to call all this stuff. This is based on code I
7040 originally wrote for Celo who have kindly allowed it to be
7041 included in OpenSSL.
7044 *) Add variants des_set_key_checked and des_set_key_unchecked of
7045 des_set_key (aka des_key_sched). Global variable des_check_key
7046 decides which of these is called by des_set_key; this way
7047 des_check_key behaves as it always did, but applications and
7048 the library itself, which was buggy for des_check_key == 1,
7049 have a cleaner way to pick the version they need.
7052 *) New function PKCS12_newpass() which changes the password of a
7056 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7057 dynamic mix. In both cases the ids can be used as an index into the
7058 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7059 functions so they accept a list of the field values and the
7060 application doesn't need to directly manipulate the X509_TRUST
7064 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7068 *) Modify the way the V3 extension code looks up extensions. This now
7069 works in a similar way to the object code: we have some "standard"
7070 extensions in a static table which is searched with OBJ_bsearch()
7071 and the application can add dynamic ones if needed. The file
7072 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7073 updated whenever a new extension is added to the core code and kept
7074 in ext_nid order. There is a simple program 'tabtest.c' which checks
7075 this. New extensions are not added too often so this file can readily
7076 be maintained manually.
7078 There are two big advantages in doing things this way. The extensions
7079 can be looked up immediately and no longer need to be "added" using
7080 X509V3_add_standard_extensions(): this function now does nothing.
7081 [Side note: I get *lots* of email saying the extension code doesn't
7082 work because people forget to call this function]
7083 Also no dynamic allocation is done unless new extensions are added:
7084 so if we don't add custom extensions there is no need to call
7085 X509V3_EXT_cleanup().
7088 *) Modify enc utility's salting as follows: make salting the default. Add a
7089 magic header, so unsalted files fail gracefully instead of just decrypting
7090 to garbage. This is because not salting is a big security hole, so people
7091 should be discouraged from doing it.
7094 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7095 digest to be passed on the command line but it only used this
7096 parameter when signing a certificate. Modified so all relevant
7097 operations are affected by the digest parameter including the
7098 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7099 DSA key was used because it didn't fix the digest.
7102 *) Initial certificate chain verify code. Currently tests the untrusted
7103 certificates for consistency with the verify purpose (which is set
7104 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7106 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7107 this is because it will reject chains with invalid extensions whereas
7108 every previous version of OpenSSL and SSLeay made no checks at all.
7110 Trust code: checks the root CA for the relevant trust settings. Trust
7111 settings have an initial value consistent with the verify purpose: e.g.
7112 if the verify purpose is for SSL client use it expects the CA to be
7113 trusted for SSL client use. However the default value can be changed to
7114 permit custom trust settings: one example of this would be to only trust
7115 certificates from a specific "secure" set of CAs.
7117 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7118 which should be used for version portability: especially since the
7119 verify structure is likely to change more often now.
7121 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7122 to set them. If not set then assume SSL clients will verify SSL servers
7125 Two new options to the verify program: -untrusted allows a set of
7126 untrusted certificates to be passed in and -purpose which sets the
7127 intended purpose of the certificate. If a purpose is set then the
7128 new chain verify code is used to check extension consistency.
7131 *) Support for the authority information access extension.
7134 *) Modify RSA and DSA PEM read routines to transparently handle
7135 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7136 public keys in a format compatible with certificate
7137 SubjectPublicKeyInfo structures. Unfortunately there were already
7138 functions called *_PublicKey_* which used various odd formats so
7139 these are retained for compatibility: however the DSA variants were
7140 never in a public release so they have been deleted. Changed dsa/rsa
7141 utilities to handle the new format: note no releases ever handled public
7142 keys so we should be OK.
7144 The primary motivation for this change is to avoid the same fiasco
7145 that dogs private keys: there are several incompatible private key
7146 formats some of which are standard and some OpenSSL specific and
7147 require various evil hacks to allow partial transparent handling and
7148 even then it doesn't work with DER formats. Given the option anything
7149 other than PKCS#8 should be dumped: but the other formats have to
7150 stay in the name of compatibility.
7152 With public keys and the benefit of hindsight one standard format
7153 is used which works with EVP_PKEY, RSA or DSA structures: though
7154 it clearly returns an error if you try to read the wrong kind of key.
7156 Added a -pubkey option to the 'x509' utility to output the public key.
7157 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7158 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7159 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7160 that do the same as the EVP_PKEY_assign_*() except they up the
7161 reference count of the added key (they don't "swallow" the
7165 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7166 CRLs would fail if the file contained no certificates or no CRLs:
7167 added a new function to read in both types and return the number
7168 read: this means that if none are read it will be an error. The
7169 DER versions of the certificate and CRL reader would always fail
7170 because it isn't possible to mix certificates and CRLs in DER format
7171 without choking one or the other routine. Changed this to just read
7172 a certificate: this is the best we can do. Also modified the code
7173 in apps/verify.c to take notice of return codes: it was previously
7174 attempting to read in certificates from NULL pointers and ignoring
7175 any errors: this is one reason why the cert and CRL reader seemed
7176 to work. It doesn't check return codes from the default certificate
7177 routines: these may well fail if the certificates aren't installed.
7180 *) Code to support otherName option in GeneralName.
7183 *) First update to verify code. Change the verify utility
7184 so it warns if it is passed a self signed certificate:
7185 for consistency with the normal behaviour. X509_verify
7186 has been modified to it will now verify a self signed
7187 certificate if *exactly* the same certificate appears
7188 in the store: it was previously impossible to trust a
7189 single self signed certificate. This means that:
7190 openssl verify ss.pem
7191 now gives a warning about a self signed certificate but
7192 openssl verify -CAfile ss.pem ss.pem
7196 *) For servers, store verify_result in SSL_SESSION data structure
7197 (and add it to external session representation).
7198 This is needed when client certificate verifications fails,
7199 but an application-provided verification callback (set by
7200 SSL_CTX_set_cert_verify_callback) allows accepting the session
7201 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7202 but returns 1): When the session is reused, we have to set
7203 ssl->verify_result to the appropriate error code to avoid
7205 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7207 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7208 case in PKCS7_dataInit() where the signed PKCS7 structure
7209 didn't contain any existing data because it was being created.
7210 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7212 *) Add a salt to the key derivation routines in enc.c. This
7213 forms the first 8 bytes of the encrypted file. Also add a
7214 -S option to allow a salt to be input on the command line.
7217 *) New function X509_cmp(). Oddly enough there wasn't a function
7218 to compare two certificates. We do this by working out the SHA1
7219 hash and comparing that. X509_cmp() will be needed by the trust
7223 *) SSL_get1_session() is like SSL_get_session(), but increments
7224 the reference count in the SSL_SESSION returned.
7225 [Geoff Thorpe <geoff@eu.c2.net>]
7227 *) Fix for 'req': it was adding a null to request attributes.
7228 Also change the X509_LOOKUP and X509_INFO code to handle
7229 certificate auxiliary information.
7232 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7236 *) Add the possibility to add extra information to the memory leak
7237 detecting output, to form tracebacks, showing from where each
7238 allocation was originated: CRYPTO_push_info("constant string") adds
7239 the string plus current file name and line number to a per-thread
7240 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7241 is like calling CYRPTO_pop_info() until the stack is empty.
7242 Also updated memory leak detection code to be multi-thread-safe.
7245 *) Add options -text and -noout to pkcs7 utility and delete the
7246 encryption options which never did anything. Update docs.
7249 *) Add options to some of the utilities to allow the pass phrase
7250 to be included on either the command line (not recommended on
7251 OSes like Unix) or read from the environment. Update the
7252 manpages and fix a few bugs.
7255 *) Add a few manpages for some of the openssl commands.
7258 *) Fix the -revoke option in ca. It was freeing up memory twice,
7259 leaking and not finding already revoked certificates.
7262 *) Extensive changes to support certificate auxiliary information.
7263 This involves the use of X509_CERT_AUX structure and X509_AUX
7264 functions. An X509_AUX function such as PEM_read_X509_AUX()
7265 can still read in a certificate file in the usual way but it
7266 will also read in any additional "auxiliary information". By
7267 doing things this way a fair degree of compatibility can be
7268 retained: existing certificates can have this information added
7269 using the new 'x509' options.
7271 Current auxiliary information includes an "alias" and some trust
7272 settings. The trust settings will ultimately be used in enhanced
7273 certificate chain verification routines: currently a certificate
7274 can only be trusted if it is self signed and then it is trusted
7278 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7279 The problem was that one of the replacement routines had not been working
7280 since SSLeay releases. For now the offending routine has been replaced
7281 with non-optimised assembler. Even so, this now gives around 95%
7282 performance improvement for 1024 bit RSA signs.
7285 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7286 handling. Most clients have the effective key size in bits equal to
7287 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7288 A few however don't do this and instead use the size of the decrypted key
7289 to determine the RC2 key length and the AlgorithmIdentifier to determine
7290 the effective key length. In this case the effective key length can still
7291 be 40 bits but the key length can be 168 bits for example. This is fixed
7292 by manually forcing an RC2 key into the EVP_PKEY structure because the
7293 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7294 the key length and effective key length are equal.
7297 *) Add a bunch of functions that should simplify the creation of
7298 X509_NAME structures. Now you should be able to do:
7299 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7300 and have it automatically work out the correct field type and fill in
7301 the structures. The more adventurous can try:
7302 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7303 and it will (hopefully) work out the correct multibyte encoding.
7306 *) Change the 'req' utility to use the new field handling and multibyte
7307 copy routines. Before the DN field creation was handled in an ad hoc
7308 way in req, ca, and x509 which was rather broken and didn't support
7309 BMPStrings or UTF8Strings. Since some software doesn't implement
7310 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7311 using the dirstring_type option. See the new comment in the default
7312 openssl.cnf for more info.
7315 *) Make crypto/rand/md_rand.c more robust:
7316 - Assure unique random numbers after fork().
7317 - Make sure that concurrent threads access the global counter and
7318 md serializably so that we never lose entropy in them
7319 or use exactly the same state in multiple threads.
7320 Access to the large state is not always serializable because
7321 the additional locking could be a performance killer, and
7322 md should be large enough anyway.
7325 *) New file apps/app_rand.c with commonly needed functionality
7326 for handling the random seed file.
7328 Use the random seed file in some applications that previously did not:
7330 dsaparam -genkey (which also ignored its '-rand' option),
7333 x509 (when signing).
7334 Except on systems with /dev/urandom, it is crucial to have a random
7335 seed file at least for key creation, DSA signing, and for DH exchanges;
7336 for RSA signatures we could do without one.
7338 gendh and gendsa (unlike genrsa) used to read only the first byte
7339 of each file listed in the '-rand' option. The function as previously
7340 found in genrsa is now in app_rand.c and is used by all programs
7341 that support '-rand'.
7344 *) In RAND_write_file, use mode 0600 for creating files;
7345 don't just chmod when it may be too late.
7348 *) Report an error from X509_STORE_load_locations
7349 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7352 *) New function ASN1_mbstring_copy() this copies a string in either
7353 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7354 into an ASN1_STRING type. A mask of permissible types is passed
7355 and it chooses the "minimal" type to use or an error if not type
7359 *) Add function equivalents to the various macros in asn1.h. The old
7360 macros are retained with an M_ prefix. Code inside the library can
7361 use the M_ macros. External code (including the openssl utility)
7362 should *NOT* in order to be "shared library friendly".
7365 *) Add various functions that can check a certificate's extensions
7366 to see if it usable for various purposes such as SSL client,
7367 server or S/MIME and CAs of these types. This is currently
7368 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7369 verification. Also added a -purpose flag to x509 utility to
7370 print out all the purposes.
7373 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7377 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7378 for, obtain and decode and extension and obtain its critical flag.
7379 This allows all the necessary extension code to be handled in a
7380 single function call.
7383 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7384 platforms. See crypto/rc4/rc4_enc.c for further details.
7387 *) New -noout option to asn1parse. This causes no output to be produced
7388 its main use is when combined with -strparse and -out to extract data
7389 from a file (which may not be in ASN.1 format).
7392 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7393 when producing the local key id.
7394 [Richard Levitte <levitte@stacken.kth.se>]
7396 *) New option -dhparam in s_server. This allows a DH parameter file to be
7397 stated explicitly. If it is not stated then it tries the first server
7398 certificate file. The previous behaviour hard coded the filename
7402 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7403 a public key to be input or output. For example:
7404 openssl rsa -in key.pem -pubout -out pubkey.pem
7405 Also added necessary DSA public key functions to handle this.
7408 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7409 in the message. This was handled by allowing
7410 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7411 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7413 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7414 to the end of the strings whereas this didn't. This would cause problems
7415 if strings read with d2i_ASN1_bytes() were later modified.
7416 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7418 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7419 data and it contains EOF it will end up returning an error. This is
7420 caused by input 46 bytes long. The cause is due to the way base64
7421 BIOs find the start of base64 encoded data. They do this by trying a
7422 trial decode on each line until they find one that works. When they
7423 do a flag is set and it starts again knowing it can pass all the
7424 data directly through the decoder. Unfortunately it doesn't reset
7425 the context it uses. This means that if EOF is reached an attempt
7426 is made to pass two EOFs through the context and this causes the
7427 resulting error. This can also cause other problems as well. As is
7428 usual with these problems it takes *ages* to find and the fix is
7429 trivial: move one line.
7430 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7432 *) Ugly workaround to get s_client and s_server working under Windows. The
7433 old code wouldn't work because it needed to select() on sockets and the
7434 tty (for keypresses and to see if data could be written). Win32 only
7435 supports select() on sockets so we select() with a 1s timeout on the
7436 sockets and then see if any characters are waiting to be read, if none
7437 are present then we retry, we also assume we can always write data to
7438 the tty. This isn't nice because the code then blocks until we've
7439 received a complete line of data and it is effectively polling the
7440 keyboard at 1s intervals: however it's quite a bit better than not
7441 working at all :-) A dedicated Windows application might handle this
7442 with an event loop for example.
7445 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7446 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7447 will be called when RSA_sign() and RSA_verify() are used. This is useful
7448 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7449 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7450 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7451 This necessitated the support of an extra signature type NID_md5_sha1
7452 for SSL signatures and modifications to the SSL library to use it instead
7453 of calling RSA_public_decrypt() and RSA_private_encrypt().
7456 *) Add new -verify -CAfile and -CApath options to the crl program, these
7457 will lookup a CRL issuers certificate and verify the signature in a
7458 similar way to the verify program. Tidy up the crl program so it
7459 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7460 less strict. It will now permit CRL extensions even if it is not
7461 a V2 CRL: this will allow it to tolerate some broken CRLs.
7464 *) Initialize all non-automatic variables each time one of the openssl
7465 sub-programs is started (this is necessary as they may be started
7466 multiple times from the "OpenSSL>" prompt).
7467 [Lennart Bang, Bodo Moeller]
7469 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7470 removing all other RSA functionality (this is what NO_RSA does). This
7471 is so (for example) those in the US can disable those operations covered
7472 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7476 *) Non-copying interface to BIO pairs.
7477 (still largely untested)
7480 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7481 ASCII string. This was handled independently in various places before.
7484 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7485 UTF8 strings a character at a time.
7488 *) Use client_version from client hello to select the protocol
7489 (s23_srvr.c) and for RSA client key exchange verification
7490 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7493 *) Add various utility functions to handle SPKACs, these were previously
7494 handled by poking round in the structure internals. Added new function
7495 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7496 print, verify and generate SPKACs. Based on an original idea from
7497 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7500 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7503 *) Allow the config file extension section to be overwritten on the
7504 command line. Based on an original idea from Massimiliano Pala
7505 <madwolf@comune.modena.it>. The new option is called -extensions
7506 and can be applied to ca, req and x509. Also -reqexts to override
7507 the request extensions in req and -crlexts to override the crl extensions
7511 *) Add new feature to the SPKAC handling in ca. Now you can include
7512 the same field multiple times by preceding it by "XXXX." for example:
7515 this is the same syntax as used in the req config file.
7518 *) Allow certificate extensions to be added to certificate requests. These
7519 are specified in a 'req_extensions' option of the req section of the
7520 config file. They can be printed out with the -text option to req but
7521 are otherwise ignored at present.
7524 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7525 data read consists of only the final block it would not decrypted because
7526 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7527 A misplaced 'break' also meant the decrypted final block might not be
7528 copied until the next read.
7531 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7532 a few extra parameters to the DH structure: these will be useful if
7533 for example we want the value of 'q' or implement X9.42 DH.
7536 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7537 provides hooks that allow the default DSA functions or functions on a
7538 "per key" basis to be replaced. This allows hardware acceleration and
7539 hardware key storage to be handled without major modification to the
7540 library. Also added low level modexp hooks and CRYPTO_EX structure and
7541 associated functions.
7544 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7545 as "read only": it can't be written to and the buffer it points to will
7546 not be freed. Reading from a read only BIO is much more efficient than
7547 a normal memory BIO. This was added because there are several times when
7548 an area of memory needs to be read from a BIO. The previous method was
7549 to create a memory BIO and write the data to it, this results in two
7550 copies of the data and an O(n^2) reading algorithm. There is a new
7551 function BIO_new_mem_buf() which creates a read only memory BIO from
7552 an area of memory. Also modified the PKCS#7 routines to use read only
7556 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7557 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7558 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7559 but a retry condition occured while trying to read the rest.
7562 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7563 NID_pkcs7_encrypted by default: this was wrong since this should almost
7564 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7565 the encrypted data type: this is a more sensible place to put it and it
7566 allows the PKCS#12 code to be tidied up that duplicated this
7570 *) Changed obj_dat.pl script so it takes its input and output files on
7571 the command line. This should avoid shell escape redirection problems
7575 *) Initial support for certificate extension requests, these are included
7576 in things like Xenroll certificate requests. Included functions to allow
7577 extensions to be obtained and added.
7580 *) -crlf option to s_client and s_server for sending newlines as
7581 CRLF (as required by many protocols).
7584 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7586 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7587 [Ralf S. Engelschall]
7589 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7590 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7592 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7596 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7597 DH parameters/keys (q is lost during that conversion, but the resulting
7598 DH parameters contain its length).
7600 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7601 much faster than DH_generate_parameters (which creates parameters
7602 where p = 2*q + 1), and also the smaller q makes DH computations
7603 much more efficient (160-bit exponentiation instead of 1024-bit
7604 exponentiation); so this provides a convenient way to support DHE
7605 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7606 utter importance to use
7607 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7609 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7610 when such DH parameters are used, because otherwise small subgroup
7611 attacks may become possible!
7614 *) Avoid memory leak in i2d_DHparams.
7617 *) Allow the -k option to be used more than once in the enc program:
7618 this allows the same encrypted message to be read by multiple recipients.
7621 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7622 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7623 it will always use the numerical form of the OID, even if it has a short
7627 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7628 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7629 otherwise bn_mod_exp was called. In the case of hardware keys for example
7630 no private key components need be present and it might store extra data
7631 in the RSA structure, which cannot be accessed from bn_mod_exp.
7632 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7633 private key operations.
7636 *) Added support for SPARC Linux.
7639 *) pem_password_cb function type incompatibly changed from
7640 typedef int pem_password_cb(char *buf, int size, int rwflag);
7642 ....(char *buf, int size, int rwflag, void *userdata);
7643 so that applications can pass data to their callbacks:
7644 The PEM[_ASN1]_{read,write}... functions and macros now take an
7645 additional void * argument, which is just handed through whenever
7646 the password callback is called.
7647 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7649 New function SSL_CTX_set_default_passwd_cb_userdata.
7651 Compatibility note: As many C implementations push function arguments
7652 onto the stack in reverse order, the new library version is likely to
7653 interoperate with programs that have been compiled with the old
7654 pem_password_cb definition (PEM_whatever takes some data that
7655 happens to be on the stack as its last argument, and the callback
7656 just ignores this garbage); but there is no guarantee whatsoever that
7659 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7660 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7661 problems not only on Windows, but also on some Unix platforms.
7662 To avoid problematic command lines, these definitions are now in an
7663 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7664 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7667 *) MIPS III/IV assembler module is reimplemented.
7670 *) More DES library cleanups: remove references to srand/rand and
7671 delete an unused file.
7674 *) Add support for the the free Netwide assembler (NASM) under Win32,
7675 since not many people have MASM (ml) and it can be hard to obtain.
7676 This is currently experimental but it seems to work OK and pass all
7677 the tests. Check out INSTALL.W32 for info.
7680 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7681 without temporary keys kept an extra copy of the server key,
7682 and connections with temporary keys did not free everything in case
7686 *) New function RSA_check_key and new openssl rsa option -check
7687 for verifying the consistency of RSA keys.
7688 [Ulf Moeller, Bodo Moeller]
7690 *) Various changes to make Win32 compile work:
7691 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7692 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7693 comparison" warnings.
7694 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7697 *) Add a debugging option to PKCS#5 v2 key generation function: when
7698 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7699 derived keys are printed to stderr.
7702 *) Copy the flags in ASN1_STRING_dup().
7703 [Roman E. Pavlov <pre@mo.msk.ru>]
7705 *) The x509 application mishandled signing requests containing DSA
7706 keys when the signing key was also DSA and the parameters didn't match.
7708 It was supposed to omit the parameters when they matched the signing key:
7709 the verifying software was then supposed to automatically use the CA's
7710 parameters if they were absent from the end user certificate.
7712 Omitting parameters is no longer recommended. The test was also
7713 the wrong way round! This was probably due to unusual behaviour in
7714 EVP_cmp_parameters() which returns 1 if the parameters match.
7715 This meant that parameters were omitted when they *didn't* match and
7716 the certificate was useless. Certificates signed with 'ca' didn't have
7718 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7720 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7721 The interface is as follows:
7722 Applications can use
7723 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7724 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7725 "off" is now the default.
7726 The library internally uses
7727 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7728 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7729 to disable memory-checking temporarily.
7731 Some inconsistent states that previously were possible (and were
7732 even the default) are now avoided.
7734 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7735 with each memory chunk allocated; this is occasionally more helpful
7736 than just having a counter.
7738 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7740 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7744 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7745 which largely parallels "options", but is for changing API behaviour,
7746 whereas "options" are about protocol behaviour.
7747 Initial "mode" flags are:
7749 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7750 a single record has been written.
7751 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7752 retries use the same buffer location.
7753 (But all of the contents must be
7757 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7760 *) Fix problems with no-hmac etc.
7761 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7763 *) New functions RSA_get_default_method(), RSA_set_method() and
7764 RSA_get_method(). These allows replacement of RSA_METHODs without having
7765 to mess around with the internals of an RSA structure.
7768 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7769 Also really enable memory leak checks in openssl.c and in some
7771 [Chad C. Mulligan, Bodo Moeller]
7773 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7774 up the length of negative integers. This has now been simplified to just
7775 store the length when it is first determined and use it later, rather
7776 than trying to keep track of where data is copied and updating it to
7778 [Steve Henson, reported by Brien Wheeler
7779 <bwheeler@authentica-security.com>]
7781 *) Add a new function PKCS7_signatureVerify. This allows the verification
7782 of a PKCS#7 signature but with the signing certificate passed to the
7783 function itself. This contrasts with PKCS7_dataVerify which assumes the
7784 certificate is present in the PKCS#7 structure. This isn't always the
7785 case: certificates can be omitted from a PKCS#7 structure and be
7786 distributed by "out of band" means (such as a certificate database).
7789 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7790 function prototypes in pem.h, also change util/mkdef.pl to add the
7791 necessary function names.
7794 *) mk1mf.pl (used by Windows builds) did not properly read the
7795 options set by Configure in the top level Makefile, and Configure
7796 was not even able to write more than one option correctly.
7797 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7800 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7801 file to be loaded from a BIO or FILE pointer. The BIO version will
7802 for example allow memory BIOs to contain config info.
7805 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7806 Whoever hopes to achieve shared-library compatibility across versions
7807 must use this, not the compile-time macro.
7808 (Exercise 0.9.4: Which is the minimum library version required by
7810 Note: All this applies only to multi-threaded programs, others don't
7814 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7815 through a BIO pair triggered the default case, i.e.
7816 SSLerr(...,SSL_R_UNKNOWN_STATE).
7819 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7820 can use the SSL library even if none of the specific BIOs is
7824 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7825 for the encoded length.
7826 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7828 *) Add initial documentation of the X509V3 functions.
7831 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7832 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7833 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7834 secure PKCS#8 private key format with a high iteration count.
7837 *) Fix determination of Perl interpreter: A perl or perl5
7838 _directory_ in $PATH was also accepted as the interpreter.
7839 [Ralf S. Engelschall]
7841 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7842 wrong with it but it was very old and did things like calling
7843 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7847 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7848 to use the new extension code.
7851 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7852 with macros. This should make it easier to change their form, add extra
7853 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7857 *) Add to configuration table a new entry that can specify an alternative
7858 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7859 according to Mark Crispin <MRC@Panda.COM>.
7863 *) DES CBC did not update the IV. Weird.
7866 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7867 Changing the behaviour of the former might break existing programs --
7868 where IV updating is needed, des_ncbc_encrypt can be used.
7871 *) When bntest is run from "make test" it drives bc to check its
7872 calculations, as well as internally checking them. If an internal check
7873 fails, it needs to cause bc to give a non-zero result or make test carries
7874 on without noticing the failure. Fixed.
7877 *) DES library cleanups.
7880 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7881 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7882 ciphers. NOTE: although the key derivation function has been verified
7883 against some published test vectors it has not been extensively tested
7884 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7888 *) Instead of "mkdir -p", which is not fully portable, use new
7889 Perl script "util/mkdir-p.pl".
7892 *) Rewrite the way password based encryption (PBE) is handled. It used to
7893 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7894 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7895 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7896 the 'parameter' field of the AlgorithmIdentifier is passed to the
7897 underlying key generation function so it must do its own ASN1 parsing.
7898 This has also changed the EVP_PBE_CipherInit() function which now has a
7899 'parameter' argument instead of literal salt and iteration count values
7900 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7903 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7904 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7905 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7906 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7907 value was just used as a "magic string" and not used directly its
7908 value doesn't matter.
7911 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7915 *) "linux-sparc64" configuration (ultrapenguin).
7916 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7917 "linux-sparc" configuration.
7918 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7920 *) config now generates no-xxx options for missing ciphers.
7923 *) Support the EBCDIC character set (work in progress).
7924 File ebcdic.c not yet included because it has a different license.
7925 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7927 *) Support BS2000/OSD-POSIX.
7928 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7930 *) Make callbacks for key generation use void * instead of char *.
7933 *) Make S/MIME samples compile (not yet tested).
7936 *) Additional typesafe stacks.
7939 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7943 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7945 *) New configuration variant "sco5-gcc".
7947 *) Updated some demos.
7948 [Sean O Riordain, Wade Scholine]
7950 *) Add missing BIO_free at exit of pkcs12 application.
7953 *) Fix memory leak in conf.c.
7956 *) Updates for Win32 to assembler version of MD5.
7959 *) Set #! path to perl in apps/der_chop to where we found it
7960 instead of using a fixed path.
7963 *) SHA library changes for irix64-mips4-cc.
7966 *) Improvements for VMS support.
7970 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7972 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7973 This also avoids the problems with SC4.2 and unpatched SC5.
7974 [Andy Polyakov <appro@fy.chalmers.se>]
7976 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7977 These are required because of the typesafe stack would otherwise break
7978 existing code. If old code used a structure member which used to be STACK
7979 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7980 sk_num or sk_value it would produce an error because the num, data members
7981 are not present in STACK_OF. Now it just produces a warning. sk_set
7982 replaces the old method of assigning a value to sk_value
7983 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7984 that does this will no longer work (and should use sk_set instead) but
7985 this could be regarded as a "questionable" behaviour anyway.
7988 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7989 correctly handle encrypted S/MIME data.
7992 *) Change type of various DES function arguments from des_cblock
7993 (which means, in function argument declarations, pointer to char)
7994 to des_cblock * (meaning pointer to array with 8 char elements),
7995 which allows the compiler to do more typechecking; it was like
7996 that back in SSLeay, but with lots of ugly casts.
7998 Introduce new type const_des_cblock.
8001 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8002 problems: find RecipientInfo structure that matches recipient certificate
8003 and initialise the ASN1 structures properly based on passed cipher.
8006 *) Belatedly make the BN tests actually check the results.
8009 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8010 to and from BNs: it was completely broken. New compilation option
8011 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8012 key elements as negative integers.
8015 *) Reorganize and speed up MD5.
8016 [Andy Polyakov <appro@fy.chalmers.se>]
8019 [Richard Levitte <richard@levitte.org>]
8021 *) New option -out to asn1parse to allow the parsed structure to be
8022 output to a file. This is most useful when combined with the -strparse
8023 option to examine the output of things like OCTET STRINGS.
8026 *) Make SSL library a little more fool-proof by not requiring any longer
8027 that SSL_set_{accept,connect}_state be called before
8028 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8029 in many applications because usually everything *appeared* to work as
8030 intended anyway -- now it really works as intended).
8033 *) Move openssl.cnf out of lib/.
8036 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8037 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8038 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8039 [Ralf S. Engelschall]
8041 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8042 handle PKCS#7 enveloped data properly.
8043 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8045 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8046 copying pointers. The cert_st handling is changed by this in
8047 various ways (and thus what used to be known as ctx->default_cert
8048 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8049 any longer when s->cert does not give us what we need).
8050 ssl_cert_instantiate becomes obsolete by this change.
8051 As soon as we've got the new code right (possibly it already is?),
8052 we have solved a couple of bugs of the earlier code where s->cert
8053 was used as if it could not have been shared with other SSL structures.
8055 Note that using the SSL API in certain dirty ways now will result
8056 in different behaviour than observed with earlier library versions:
8057 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8058 does not influence s as it used to.
8060 In order to clean up things more thoroughly, inside SSL_SESSION
8061 we don't use CERT any longer, but a new structure SESS_CERT
8062 that holds per-session data (if available); currently, this is
8063 the peer's certificate chain and, for clients, the server's certificate
8064 and temporary key. CERT holds only those values that can have
8065 meaningful defaults in an SSL_CTX.
8068 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8069 from the internal representation. Various PKCS#7 fixes: remove some
8070 evil casts and set the enc_dig_alg field properly based on the signing
8074 *) Allow PKCS#12 password to be set from the command line or the
8075 environment. Let 'ca' get its config file name from the environment
8076 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8080 *) Allow certificate policies extension to use an IA5STRING for the
8081 organization field. This is contrary to the PKIX definition but
8082 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8086 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8087 without disallowing inline assembler and the like for non-pedantic builds.
8090 *) Support Borland C++ builder.
8091 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8096 *) SHA-1 cleanups and performance enhancements.
8097 [Andy Polyakov <appro@fy.chalmers.se>]
8099 *) Sparc v8plus assembler for the bignum library.
8100 [Andy Polyakov <appro@fy.chalmers.se>]
8102 *) Accept any -xxx and +xxx compiler options in Configure.
8105 *) Update HPUX configuration.
8108 *) Add missing sk_<type>_unshift() function to safestack.h
8109 [Ralf S. Engelschall]
8111 *) New function SSL_CTX_use_certificate_chain_file that sets the
8112 "extra_cert"s in addition to the certificate. (This makes sense
8113 only for "PEM" format files, as chains as a whole are not
8117 *) Support verify_depth from the SSL API.
8118 x509_vfy.c had what can be considered an off-by-one-error:
8119 Its depth (which was not part of the external interface)
8120 was actually counting the number of certificates in a chain;
8121 now it really counts the depth.
8124 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8125 instead of X509err, which often resulted in confusing error
8126 messages since the error codes are not globally unique
8127 (e.g. an alleged error in ssl3_accept when a certificate
8128 didn't match the private key).
8130 *) New function SSL_CTX_set_session_id_context that allows to set a default
8131 value (so that you don't need SSL_set_session_id_context for each
8132 connection using the SSL_CTX).
8135 *) OAEP decoding bug fix.
8138 *) Support INSTALL_PREFIX for package builders, as proposed by
8142 *) New Configure options "threads" and "no-threads". For systems
8143 where the proper compiler options are known (currently Solaris
8144 and Linux), "threads" is the default.
8147 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8150 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8151 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8152 such as /usr/local/bin.
8155 *) "make linux-shared" to build shared libraries.
8156 [Niels Poppe <niels@netbox.org>]
8158 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8161 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8162 extension adding in x509 utility.
8165 *) Remove NOPROTO sections and error code comments.
8168 *) Partial rewrite of the DEF file generator to now parse the ANSI
8172 *) New Configure options --prefix=DIR and --openssldir=DIR.
8175 *) Complete rewrite of the error code script(s). It is all now handled
8176 by one script at the top level which handles error code gathering,
8177 header rewriting and C source file generation. It should be much better
8178 than the old method: it now uses a modified version of Ulf's parser to
8179 read the ANSI prototypes in all header files (thus the old K&R definitions
8180 aren't needed for error creation any more) and do a better job of
8181 translating function codes into names. The old 'ASN1 error code imbedded
8182 in a comment' is no longer necessary and it doesn't use .err files which
8183 have now been deleted. Also the error code call doesn't have to appear all
8184 on one line (which resulted in some large lines...).
8187 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8190 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8191 0 (which usually indicates a closed connection), but continue reading.
8194 *) Fix some race conditions.
8197 *) Add support for CRL distribution points extension. Add Certificate
8198 Policies and CRL distribution points documentation.
8201 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8204 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8205 8 of keying material. Merlin has also confirmed interop with this fix
8206 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8207 [Merlin Hughes <merlin@baltimore.ie>]
8209 *) Fix lots of warnings.
8210 [Richard Levitte <levitte@stacken.kth.se>]
8212 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8213 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8214 [Richard Levitte <levitte@stacken.kth.se>]
8216 *) Fix problems with sizeof(long) == 8.
8217 [Andy Polyakov <appro@fy.chalmers.se>]
8219 *) Change functions to ANSI C.
8222 *) Fix typos in error codes.
8223 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8225 *) Remove defunct assembler files from Configure.
8228 *) SPARC v8 assembler BIGNUM implementation.
8229 [Andy Polyakov <appro@fy.chalmers.se>]
8231 *) Support for Certificate Policies extension: both print and set.
8232 Various additions to support the r2i method this uses.
8235 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8236 return a const string when you are expecting an allocated buffer.
8239 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8240 types DirectoryString and DisplayText.
8243 *) Add code to allow r2i extensions to access the configuration database,
8244 add an LHASH database driver and add several ctx helper functions.
8247 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8248 fail when they extended the size of a BIGNUM.
8251 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8252 support typesafe stack.
8255 *) Fix typo in SSL_[gs]et_options().
8256 [Nils Frostberg <nils@medcom.se>]
8258 *) Delete various functions and files that belonged to the (now obsolete)
8259 old X509V3 handling code.
8262 *) New Configure option "rsaref".
8265 *) Don't auto-generate pem.h.
8268 *) Introduce type-safe ASN.1 SETs.
8271 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8272 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8274 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8275 that links with OpenSSL (well at least cause lots of warnings), but fear
8276 not: the conversion is trivial, and it eliminates loads of evil casts. A
8277 few STACKed things have been converted already. Feel free to convert more.
8278 In the fullness of time, I'll do away with the STACK type altogether.
8281 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8282 specified in <certfile> by updating the entry in the index.txt file.
8283 This way one no longer has to edit the index.txt file manually for
8284 revoking a certificate. The -revoke option does the gory details now.
8285 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8287 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8288 `-text' option at all and this way the `-noout -text' combination was
8289 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8290 [Ralf S. Engelschall]
8292 *) Make sure a corresponding plain text error message exists for the
8293 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8294 verify callback function determined that a certificate was revoked.
8295 [Ralf S. Engelschall]
8297 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8298 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8299 all available cipers including rc5, which was forgotten until now.
8300 In order to let the testing shell script know which algorithms
8301 are available, a new (up to now undocumented) command
8302 "openssl list-cipher-commands" is used.
8305 *) Bugfix: s_client occasionally would sleep in select() when
8306 it should have checked SSL_pending() first.
8309 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8310 the raw DSA values prior to ASN.1 encoding.
8313 *) Tweaks to Configure
8314 [Niels Poppe <niels@netbox.org>]
8316 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8320 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8323 *) New config option to avoid instructions that are illegal on the 80386.
8324 The default code is faster, but requires at least a 486.
8327 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8328 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8329 same as SSL2_VERSION anyway.
8332 *) New "-showcerts" option for s_client.
8335 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8336 application. Various cleanups and fixes.
8339 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8340 modify error routines to work internally. Add error codes and PBE init
8341 to library startup routines.
8344 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8345 packing functions to asn1 and evp. Changed function names and error
8346 codes along the way.
8349 *) PKCS12 integration: and so it begins... First of several patches to
8350 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8351 objects to objects.h
8354 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8355 and display support for Thawte strong extranet extension.
8358 *) Add LinuxPPC support.
8359 [Jeff Dubrule <igor@pobox.org>]
8361 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8362 bn_div_words in alpha.s.
8363 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8365 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8366 OAEP isn't supported when OpenSSL is built with RSAref.
8367 [Ulf Moeller <ulf@fitug.de>]
8369 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8370 so they no longer are missing under -DNOPROTO.
8371 [Soren S. Jorvang <soren@t.dk>]
8374 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8376 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8377 doesn't work when the session is reused. Coming soon!
8380 *) Fix a security hole, that allows sessions to be reused in the wrong
8381 context thus bypassing client cert protection! All software that uses
8382 client certs and session caches in multiple contexts NEEDS PATCHING to
8383 allow session reuse! A fuller solution is in the works.
8384 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8386 *) Some more source tree cleanups (removed obsolete files
8387 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8388 permission on "config" script to be executable) and a fix for the INSTALL
8390 [Ulf Moeller <ulf@fitug.de>]
8392 *) Remove some legacy and erroneous uses of malloc, free instead of
8394 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8396 *) Make rsa_oaep_test return non-zero on error.
8397 [Ulf Moeller <ulf@fitug.de>]
8399 *) Add support for native Solaris shared libraries. Configure
8400 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8401 if someone would make that last step automatic.
8402 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8404 *) ctx_size was not built with the right compiler during "make links". Fixed.
8407 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8408 except NULL ciphers". This means the default cipher list will no longer
8409 enable NULL ciphers. They need to be specifically enabled e.g. with
8410 the string "DEFAULT:eNULL".
8413 *) Fix to RSA private encryption routines: if p < q then it would
8414 occasionally produce an invalid result. This will only happen with
8415 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8418 *) Be less restrictive and allow also `perl util/perlpath.pl
8419 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8420 because this way one can also use an interpreter named `perl5' (which is
8421 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8422 installed as `perl').
8423 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8425 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8426 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8428 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8429 advapi32.lib to Win32 build and change the pem test comparision
8430 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8431 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8432 and crypto/des/ede_cbcm_enc.c.
8435 *) DES quad checksum was broken on big-endian architectures. Fixed.
8438 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8439 Win32 test batch file so it (might) work again. The Win32 test batch file
8440 is horrible: I feel ill....
8443 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8444 in e_os.h. Audit of header files to check ANSI and non ANSI
8445 sections: 10 functions were absent from non ANSI section and not exported
8446 from Windows DLLs. Fixed up libeay.num for new functions.
8449 *) Make `openssl version' output lines consistent.
8450 [Ralf S. Engelschall]
8452 *) Fix Win32 symbol export lists for BIO functions: Added
8453 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8454 to ms/libeay{16,32}.def.
8455 [Ralf S. Engelschall]
8457 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8458 fine under Unix and passes some trivial tests I've now added. But the
8459 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8460 added to make sure no one expects that this stuff really works in the
8461 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8462 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8464 [Ralf S. Engelschall]
8466 *) Fix the generation of two part addresses in perl.
8467 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8469 *) Add config entry for Linux on MIPS.
8470 [John Tobey <jtobey@channel1.com>]
8472 *) Make links whenever Configure is run, unless we are on Windoze.
8475 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8476 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8480 *) Add a useful kludge to allow package maintainers to specify compiler and
8481 other platforms details on the command line without having to patch the
8482 Configure script everytime: One now can use ``perl Configure
8483 <id>:<details>'', i.e. platform ids are allowed to have details appended
8484 to them (seperated by colons). This is treated as there would be a static
8485 pre-configured entry in Configure's %table under key <id> with value
8486 <details> and ``perl Configure <id>'' is called. So, when you want to
8487 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8488 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8489 now, which overrides the FreeBSD-elf entry on-the-fly.
8490 [Ralf S. Engelschall]
8492 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8495 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8496 on the `perl Configure ...' command line. This way one can compile
8497 OpenSSL libraries with Position Independent Code (PIC) which is needed
8498 for linking it into DSOs.
8499 [Ralf S. Engelschall]
8501 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8505 *) Cleaned up the LICENSE document: The official contact for any license
8506 questions now is the OpenSSL core team under openssl-core@openssl.org.
8507 And add a paragraph about the dual-license situation to make sure people
8508 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8509 to the OpenSSL toolkit.
8510 [Ralf S. Engelschall]
8512 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8513 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8514 Additonally cleaned up the `make links' target: Remove unnecessary
8515 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8516 to speed processing and no longer clutter the display with confusing
8517 stuff. Instead only the actually done links are displayed.
8518 [Ralf S. Engelschall]
8520 *) Permit null encryption ciphersuites, used for authentication only. It used
8521 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8522 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8526 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8527 signed attributes when verifying signatures (this would break them),
8528 the detached data encoding was wrong and public keys obtained using
8529 X509_get_pubkey() weren't freed.
8532 *) Add text documentation for the BUFFER functions. Also added a work around
8533 to a Win95 console bug. This was triggered by the password read stuff: the
8534 last character typed gets carried over to the next fread(). If you were
8535 generating a new cert request using 'req' for example then the last
8536 character of the passphrase would be CR which would then enter the first
8540 *) Added the new `Includes OpenSSL Cryptography Software' button as
8541 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8542 button and can be used by applications based on OpenSSL to show the
8543 relationship to the OpenSSL project.
8544 [Ralf S. Engelschall]
8546 *) Remove confusing variables in function signatures in files
8547 ssl/ssl_lib.c and ssl/ssl.h.
8548 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8550 *) Don't install bss_file.c under PREFIX/include/
8551 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8553 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8554 functions that return function pointers and has support for NT specific
8555 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8556 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8557 unsigned to signed types: this was killing the Win32 compile.
8560 *) Add new certificate file to stack functions,
8561 SSL_add_dir_cert_subjects_to_stack() and
8562 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8563 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8564 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8565 This means that Apache-SSL and similar packages don't have to mess around
8566 to add as many CAs as they want to the preferred list.
8569 *) Experiment with doxygen documentation. Currently only partially applied to
8571 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8572 openssl.doxy as the configuration file.
8575 *) Get rid of remaining C++-style comments which strict C compilers hate.
8576 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8578 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8579 compiled in by default: it has problems with large keys.
8582 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8583 DH private keys and/or callback functions which directly correspond to
8584 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8585 is needed for applications which have to configure certificates on a
8586 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8588 For the RSA certificate situation is makes no difference, but
8589 for the DSA certificate situation this fixes the "no shared cipher"
8590 problem where the OpenSSL cipher selection procedure failed because the
8591 temporary keys were not overtaken from the context and the API provided
8592 no way to reconfigure them.
8593 The new functions now let applications reconfigure the stuff and they
8594 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8595 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8596 non-public-API function ssl_cert_instantiate() is used as a helper
8597 function and also to reduce code redundancy inside ssl_rsa.c.
8598 [Ralf S. Engelschall]
8600 *) Move s_server -dcert and -dkey options out of the undocumented feature
8601 area because they are useful for the DSA situation and should be
8602 recognized by the users.
8603 [Ralf S. Engelschall]
8605 *) Fix the cipher decision scheme for export ciphers: the export bits are
8606 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8607 SSL_EXP_MASK. So, the original variable has to be used instead of the
8608 already masked variable.
8609 [Richard Levitte <levitte@stacken.kth.se>]
8611 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8612 [Richard Levitte <levitte@stacken.kth.se>]
8614 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8615 from `int' to `unsigned int' because it's a length and initialized by
8616 EVP_DigestFinal() which expects an `unsigned int *'.
8617 [Richard Levitte <levitte@stacken.kth.se>]
8619 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8620 script. Instead use the usual Shell->Perl transition trick.
8621 [Ralf S. Engelschall]
8623 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8624 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8625 -noout -modulus' as it's already the case for `openssl rsa -noout
8626 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8627 currently the public key is printed (a decision which was already done by
8628 `openssl dsa -modulus' in the past) which serves a similar purpose.
8629 Additionally the NO_RSA no longer completely removes the whole -modulus
8630 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8632 [Ralf S. Engelschall]
8634 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8635 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8636 [Arne Ansper <arne@ats.cyber.ee>]
8638 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8639 to be added. Now both 'req' and 'ca' can use new objects defined in the
8643 *) Add cool BIO that does syslog (or event log on NT).
8644 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8646 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8647 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8648 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8649 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8652 *) Add preliminary config info for new extension code.
8655 *) Make RSA_NO_PADDING really use no padding.
8656 [Ulf Moeller <ulf@fitug.de>]
8658 *) Generate errors when private/public key check is done.
8661 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8662 for some CRL extensions and new objects added.
8665 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8666 key usage extension and fuller support for authority key id.
8669 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8670 padding method for RSA, which is recommended for new applications in PKCS
8671 #1 v2.0 (RFC 2437, October 1998).
8672 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8673 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8674 against Bleichbacher's attack on RSA.
8675 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8678 *) Updates to the new SSL compression code
8679 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8681 *) Fix so that the version number in the master secret, when passed
8682 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8683 (because the server will not accept higher), that the version number
8684 is 0x03,0x01, not 0x03,0x00
8685 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8687 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8688 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8689 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8692 *) Support for RAW extensions where an arbitrary extension can be
8693 created by including its DER encoding. See apps/openssl.cnf for
8697 *) Make sure latest Perl versions don't interpret some generated C array
8698 code as Perl array code in the crypto/err/err_genc.pl script.
8699 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8701 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8702 not many people have the assembler. Various Win32 compilation fixes and
8703 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8707 *) Modify configure script 'Configure' to automatically create crypto/date.h
8708 file under Win32 and also build pem.h from pem.org. New script
8709 util/mkfiles.pl to create the MINFO file on environments that can't do a
8710 'make files': perl util/mkfiles.pl >MINFO should work.
8713 *) Major rework of DES function declarations, in the pursuit of correctness
8714 and purity. As a result, many evil casts evaporated, and some weirdness,
8715 too. You may find this causes warnings in your code. Zapping your evil
8716 casts will probably fix them. Mostly.
8719 *) Fix for a typo in asn1.h. Bug fix to object creation script
8720 obj_dat.pl. It considered a zero in an object definition to mean
8721 "end of object": none of the objects in objects.h have any zeros
8722 so it wasn't spotted.
8723 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8725 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8726 Masking (CBCM). In the absence of test vectors, the best I have been able
8727 to do is check that the decrypt undoes the encrypt, so far. Send me test
8728 vectors if you have them.
8731 *) Correct calculation of key length for export ciphers (too much space was
8732 allocated for null ciphers). This has not been tested!
8735 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8736 message is now correct (it understands "crypto" and "ssl" on its
8737 command line). There is also now an "update" option. This will update
8738 the util/ssleay.num and util/libeay.num files with any new functions.
8740 perl util/mkdef.pl crypto ssl update
8741 it will update them.
8744 *) Overhauled the Perl interface (perl/*):
8745 - ported BN stuff to OpenSSL's different BN library
8746 - made the perl/ source tree CVS-aware
8747 - renamed the package from SSLeay to OpenSSL (the files still contain
8748 their history because I've copied them in the repository)
8749 - removed obsolete files (the test scripts will be replaced
8750 by better Test::Harness variants in the future)
8751 [Ralf S. Engelschall]
8753 *) First cut for a very conservative source tree cleanup:
8754 1. merge various obsolete readme texts into doc/ssleay.txt
8755 where we collect the old documents and readme texts.
8756 2. remove the first part of files where I'm already sure that we no
8757 longer need them because of three reasons: either they are just temporary
8758 files which were left by Eric or they are preserved original files where
8759 I've verified that the diff is also available in the CVS via "cvs diff
8760 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8761 the crypto/md/ stuff).
8762 [Ralf S. Engelschall]
8764 *) More extension code. Incomplete support for subject and issuer alt
8765 name, issuer and authority key id. Change the i2v function parameters
8766 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8767 what that's for :-) Fix to ASN1 macro which messed up
8768 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8771 *) Preliminary support for ENUMERATED type. This is largely copied from the
8775 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8776 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8778 *) Make sure `make rehash' target really finds the `openssl' program.
8779 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8781 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8782 like to hear about it if this slows down other processors.
8785 *) Add CygWin32 platform information to Configure script.
8786 [Alan Batie <batie@aahz.jf.intel.com>]
8788 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8789 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8791 *) New program nseq to manipulate netscape certificate sequences
8794 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8798 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8799 but the BN code had some problems that would cause failures when
8800 doing certificate verification and some other functions.
8801 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8803 *) Add ASN1 and PEM code to support netscape certificate sequences.
8806 *) Add ASN1 and PEM code to support netscape certificate sequences.
8809 *) Add several PKIX and private extended key usage OIDs.
8812 *) Modify the 'ca' program to handle the new extension code. Modify
8813 openssl.cnf for new extension format, add comments.
8816 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8817 and add a sample to openssl.cnf so req -x509 now adds appropriate
8821 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8822 error code, add initial support to X509_print() and x509 application.
8825 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8826 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8827 stuff is currently isolated and isn't even compiled yet.
8830 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8831 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8832 Removed the versions check from X509 routines when loading extensions:
8833 this allows certain broken certificates that don't set the version
8834 properly to be processed.
8837 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8838 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8839 can still be regenerated with "make depend".
8842 *) Spelling mistake in C version of CAST-128.
8843 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8845 *) Changes to the error generation code. The perl script err-code.pl
8846 now reads in the old error codes and retains the old numbers, only
8847 adding new ones if necessary. It also only changes the .err files if new
8848 codes are added. The makefiles have been modified to only insert errors
8849 when needed (to avoid needlessly modifying header files). This is done
8850 by only inserting errors if the .err file is newer than the auto generated
8851 C file. To rebuild all the error codes from scratch (the old behaviour)
8852 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8853 or delete all the .err files.
8856 *) CAST-128 was incorrectly implemented for short keys. The C version has
8857 been fixed, but is untested. The assembler versions are also fixed, but
8858 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8859 to regenerate it if needed.
8860 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8861 Hagino <itojun@kame.net>]
8863 *) File was opened incorrectly in randfile.c.
8864 [Ulf Möller <ulf@fitug.de>]
8866 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8867 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8868 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8869 al: it's just almost always a UTCTime. Note this patch adds new error
8870 codes so do a "make errors" if there are problems.
8873 *) Correct Linux 1 recognition in config.
8874 [Ulf Möller <ulf@fitug.de>]
8876 *) Remove pointless MD5 hash when using DSA keys in ca.
8877 [Anonymous <nobody@replay.com>]
8879 *) Generate an error if given an empty string as a cert directory. Also
8880 generate an error if handed NULL (previously returned 0 to indicate an
8881 error, but didn't set one).
8882 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8884 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8887 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8888 parameters. This was causing a warning which killed off the Win32 compile.
8891 *) Remove C++ style comments from crypto/bn/bn_local.h.
8892 [Neil Costigan <neil.costigan@celocom.com>]
8894 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8895 based on a text string, looking up short and long names and finally
8896 "dot" format. The "dot" format stuff didn't work. Added new function
8897 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8898 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8899 OID is not part of the table.
8902 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8903 X509_LOOKUP_by_alias().
8906 *) Sort openssl functions by name.
8909 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8910 encryption from sample DSA keys (in case anyone is interested the password
8914 *) Make _all_ *_free functions accept a NULL pointer.
8915 [Frans Heymans <fheymans@isaserver.be>]
8917 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8919 [Anonymous <nobody@replay.com>]
8921 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8922 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8924 *) Don't blow it for numeric -newkey arguments to apps/req.
8925 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8927 *) Temp key "for export" tests were wrong in s3_srvr.c.
8928 [Anonymous <nobody@replay.com>]
8930 *) Add prototype for temp key callback functions
8931 SSL_CTX_set_tmp_{rsa,dh}_callback().
8934 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8935 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8938 *) X509_name_add_entry() freed the wrong thing after an error.
8939 [Arne Ansper <arne@ats.cyber.ee>]
8941 *) rsa_eay.c would attempt to free a NULL context.
8942 [Arne Ansper <arne@ats.cyber.ee>]
8944 *) BIO_s_socket() had a broken should_retry() on Windoze.
8945 [Arne Ansper <arne@ats.cyber.ee>]
8947 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8948 [Arne Ansper <arne@ats.cyber.ee>]
8950 *) Make sure the already existing X509_STORE->depth variable is initialized
8951 in X509_STORE_new(), but document the fact that this variable is still
8952 unused in the certificate verification process.
8953 [Ralf S. Engelschall]
8955 *) Fix the various library and apps files to free up pkeys obtained from
8956 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8959 *) Fix reference counting in X509_PUBKEY_get(). This makes
8960 demos/maurice/example2.c work, amongst others, probably.
8961 [Steve Henson and Ben Laurie]
8963 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8964 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8965 are no longer created. This way we have a single and consistent command
8966 line interface `openssl <command>', similar to `cvs <command>'.
8967 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8969 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8970 BIT STRING wrapper always have zero unused bits.
8973 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8976 *) Make the top-level INSTALL documentation easier to understand.
8979 *) Makefiles updated to exit if an error occurs in a sub-directory
8980 make (including if user presses ^C) [Paul Sutton]
8982 *) Make Montgomery context stuff explicit in RSA data structure.
8985 *) Fix build order of pem and err to allow for generated pem.h.
8988 *) Fix renumbering bug in X509_NAME_delete_entry().
8991 *) Enhanced the err-ins.pl script so it makes the error library number
8992 global and can add a library name. This is needed for external ASN1 and
8993 other error libraries.
8996 *) Fixed sk_insert which never worked properly.
8999 *) Fix ASN1 macros so they can handle indefinite length construted
9000 EXPLICIT tags. Some non standard certificates use these: they can now
9004 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9005 into a single doc/ssleay.txt bundle. This way the information is still
9006 preserved but no longer messes up this directory. Now it's new room for
9007 the new set of documenation files.
9008 [Ralf S. Engelschall]
9010 *) SETs were incorrectly DER encoded. This was a major pain, because they
9011 shared code with SEQUENCEs, which aren't coded the same. This means that
9012 almost everything to do with SETs or SEQUENCEs has either changed name or
9013 number of arguments.
9014 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9016 *) Fix test data to work with the above.
9019 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9020 was already fixed by Eric for 0.9.1 it seems.
9021 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9023 *) Autodetect FreeBSD3.
9026 *) Fix various bugs in Configure. This affects the following platforms:
9030 unixware-2.0-pentium
9034 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9035 before they are needed.
9038 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9042 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9044 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9045 changed SSLeay to OpenSSL in version strings.
9046 [Ralf S. Engelschall]
9048 *) Some fixups to the top-level documents.
9051 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9052 because the symlink to include/ was missing.
9053 [Ralf S. Engelschall]
9055 *) Incorporated the popular no-RSA/DSA-only patches
9056 which allow to compile a RSA-free SSLeay.
9057 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9059 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9060 when "ssleay" is still not found.
9061 [Ralf S. Engelschall]
9063 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9064 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9066 *) Updated the README file.
9067 [Ralf S. Engelschall]
9069 *) Added various .cvsignore files in the CVS repository subdirs
9070 to make a "cvs update" really silent.
9071 [Ralf S. Engelschall]
9073 *) Recompiled the error-definition header files and added
9074 missing symbols to the Win32 linker tables.
9075 [Ralf S. Engelschall]
9077 *) Cleaned up the top-level documents;
9078 o new files: CHANGES and LICENSE
9079 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9080 o merged COPYRIGHT into LICENSE
9081 o removed obsolete TODO file
9082 o renamed MICROSOFT to INSTALL.W32
9083 [Ralf S. Engelschall]
9085 *) Removed dummy files from the 0.9.1b source tree:
9086 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9087 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9088 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9089 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9090 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9091 [Ralf S. Engelschall]
9093 *) Added various platform portability fixes.
9096 *) The Genesis of the OpenSSL rpject:
9097 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9098 Young and Tim J. Hudson created while they were working for C2Net until
9100 [The OpenSSL Project]
9103 Changes between 0.9.0b and 0.9.1b [not released]
9105 *) Updated a few CA certificates under certs/
9108 *) Changed some BIGNUM api stuff.
9111 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9112 DGUX x86, Linux Alpha, etc.
9115 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9116 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9120 *) Add -strparse option to asn1pars program which parses nested
9122 [Dr Stephen Henson <shenson@bigfoot.com>]
9124 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9127 *) DSA fix for "ca" program.
9130 *) Added "-genkey" option to "dsaparam" program.
9133 *) Added RIPE MD160 (rmd160) message digest.
9136 *) Added -a (all) option to "ssleay version" command.
9139 *) Added PLATFORM define which is the id given to Configure.
9142 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9145 *) Extended the ASN.1 parser routines.
9148 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9151 *) Added a BN_CTX to the BN library.
9154 *) Fixed the weak key values in DES library
9157 *) Changed API in EVP library for cipher aliases.
9160 *) Added support for RC2/64bit cipher.
9163 *) Converted the lhash library to the crypto/mem.c functions.
9166 *) Added more recognized ASN.1 object ids.
9169 *) Added more RSA padding checks for SSL/TLS.
9172 *) Added BIO proxy/filter functionality.
9175 *) Added extra_certs to SSL_CTX which can be used
9176 send extra CA certificates to the client in the CA cert chain sending
9177 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9180 *) Now Fortezza is denied in the authentication phase because
9181 this is key exchange mechanism is not supported by SSLeay at all.
9184 *) Additional PKCS1 checks.
9187 *) Support the string "TLSv1" for all TLS v1 ciphers.
9190 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9191 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9194 *) Fixed a few memory leaks.
9197 *) Fixed various code and comment typos.
9200 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9201 bytes sent in the client random.
9202 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob