5 Changes between 0.9.8k and 1.0 [xx XXX xxxx]
7 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
9 [Julia Lawall <julia@diku.dk>]
11 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
12 needlessly dereferenced structures, used obsolete functions and
13 didn't handle all updated verify codes correctly.
16 *) Delete MD2 from algorithm tables. This follows the recommendation in
17 several standards that it is not used in new applications due to
18 several cryptographic weaknesses. The algorithm is also disabled in
19 the default configuration.
22 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
23 indicate the initial BIO being pushed or popped. This makes it possible
24 to determine whether the BIO is the one explicitly called or as a result
25 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
26 it handles reference counts correctly and doesn't zero out the I/O bio
27 when it is not being explicitly popped. WARNING: applications which
28 included workarounds for the old buggy behaviour will need to be modified
29 or they could free up already freed BIOs.
32 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
33 OPENSSL_asc2uni the original names were too generic and cause name
35 [Guenter <lists@gknw.net>]
37 *) Add ECDHE and PSK support to DTLS.
38 [Michael Tuexen <tuexen@fh-muenster.de>]
40 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
44 *) Add "missing" function EVP_MD_flags() (without this the only way to
45 retrieve a digest flags is by accessing the structure directly. Update
46 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
47 or cipher is registered as in the "from" argument. Print out all
48 registered digests in the dgst usage message instead of manually
49 attempting to work them out.
52 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
53 this allows the use of compression and extensions. Change default cipher
54 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
55 by default unless an application cipher string requests it.
58 *) Alter match criteria in PKCS12_parse(). It used to try to use local
59 key ids to find matching certificates and keys but some PKCS#12 files
60 don't follow the (somewhat unwritten) rules and this strategy fails.
61 Now just gather all certificates together and the first private key
62 then look for the first certificate that matches the key.
65 *) Support use of registered digest and cipher names for dgst and cipher
66 commands instead of having to add each one as a special case. So now
73 openssl dgst -sha256 foo
75 and this works for ENGINE based algorithms too.
79 *) Update Gost ENGINE to support parameter files.
80 [Victor B. Wagner <vitus@cryptocom.ru>]
82 *) Support GeneralizedTime in ca utility.
83 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
85 *) Enhance the hash format used for certificate directory links. The new
86 form uses the canonical encoding (meaning equivalent names will work
87 even if they aren't identical) and uses SHA1 instead of MD5. This form
88 is incompatible with the older format and as a result c_rehash should
89 be used to rebuild symbolic links.
92 *) Make PKCS#8 the default write format for private keys, replacing the
93 traditional format. This form is standardised, more secure and doesn't
94 include an implicit MD5 dependency.
97 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
98 committed to OpenSSL should pass this lot as a minimum.
101 *) Add session ticket override functionality for use by EAP-FAST.
102 [Jouni Malinen <j@w1.fi>]
104 *) Modify HMAC functions to return a value. Since these can be implemented
105 in an ENGINE errors can occur.
108 *) Type-checked OBJ_bsearch_ex.
111 *) Type-checked OBJ_bsearch. Also some constification necessitated
112 by type-checking. Still to come: TXT_DB, bsearch(?),
113 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
117 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
118 seconds to a tm structure directly, instead of going through OS
119 specific date routines. This avoids any issues with OS routines such
120 as the year 2038 bug. New *_adj() functions for ASN1 time structures
121 and X509_time_adj_ex() to cover the extended range. The existing
122 X509_time_adj() is still usable and will no longer have any date issues.
125 *) Delta CRL support. New use deltas option which will attempt to locate
126 and search any appropriate delta CRLs available.
128 This work was sponsored by Google.
131 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
132 code and add additional score elements. Validate alternate CRL paths
133 as part of the CRL checking and indicate a new error "CRL path validation
134 error" in this case. Applications wanting additional details can use
135 the verify callback and check the new "parent" field. If this is not
136 NULL CRL path validation is taking place. Existing applications wont
137 see this because it requires extended CRL support which is off by
140 This work was sponsored by Google.
143 *) Support for freshest CRL extension.
145 This work was sponsored by Google.
148 *) Initial indirect CRL support. Currently only supported in the CRLs
149 passed directly and not via lookup. Process certificate issuer
150 CRL entry extension and lookup CRL entries by bother issuer name
151 and serial number. Check and process CRL issuer entry in IDP extension.
153 This work was sponsored by Google.
156 *) Add support for distinct certificate and CRL paths. The CRL issuer
157 certificate is validated separately in this case. Only enabled if
158 an extended CRL support flag is set: this flag will enable additional
159 CRL functionality in future.
161 This work was sponsored by Google.
164 *) Add support for policy mappings extension.
166 This work was sponsored by Google.
169 *) Fixes to pathlength constraint, self issued certificate handling,
170 policy processing to align with RFC3280 and PKITS tests.
172 This work was sponsored by Google.
175 *) Support for name constraints certificate extension. DN, email, DNS
176 and URI types are currently supported.
178 This work was sponsored by Google.
181 *) To cater for systems that provide a pointer-based thread ID rather
182 than numeric, deprecate the current numeric thread ID mechanism and
183 replace it with a structure and associated callback type. This
184 mechanism allows a numeric "hash" to be extracted from a thread ID in
185 either case, and on platforms where pointers are larger than 'long',
186 mixing is done to help ensure the numeric 'hash' is usable even if it
187 can't be guaranteed unique. The default mechanism is to use "&errno"
188 as a pointer-based thread ID to distinguish between threads.
190 Applications that want to provide their own thread IDs should now use
191 CRYPTO_THREADID_set_callback() to register a callback that will call
192 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
194 Note that ERR_remove_state() is now deprecated, because it is tied
195 to the assumption that thread IDs are numeric. ERR_remove_state(0)
196 to free the current thread's error state should be replaced by
197 ERR_remove_thread_state(NULL).
199 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
200 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
201 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
202 application was previously providing a numeric thread callback that
203 was inappropriate for distinguishing threads, then uniqueness might
204 have been obtained with &errno that happened immediately in the
205 intermediate development versions of OpenSSL; this is no longer the
206 case, the numeric thread callback will now override the automatic use
208 [Geoff Thorpe, with help from Bodo Moeller]
210 *) Initial support for different CRL issuing certificates. This covers a
211 simple case where the self issued certificates in the chain exist and
212 the real CRL issuer is higher in the existing chain.
214 This work was sponsored by Google.
217 *) Removed effectively defunct crypto/store from the build.
220 *) Revamp of STACK to provide stronger type-checking. Still to come:
221 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
222 ASN1_STRING, CONF_VALUE.
225 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
226 RAM on SSL connections. This option can save about 34k per idle SSL.
229 *) Revamp of LHASH to provide stronger type-checking. Still to come:
230 STACK, TXT_DB, bsearch, qsort.
233 *) Initial support for Cryptographic Message Syntax (aka CMS) based
234 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
235 support for data, signedData, compressedData, digestedData and
236 encryptedData, envelopedData types included. Scripts to check against
237 RFC4134 examples draft and interop and consistency checks of many
238 content types and variants.
241 *) Add options to enc utility to support use of zlib compression BIO.
244 *) Extend mk1mf to support importing of options and assembly language
245 files from Configure script, currently only included in VC-WIN32.
246 The assembly language rules can now optionally generate the source
247 files from the associated perl scripts.
250 *) Implement remaining functionality needed to support GOST ciphersuites.
251 Interop testing has been performed using CryptoPro implementations.
252 [Victor B. Wagner <vitus@cryptocom.ru>]
254 *) s390x assembler pack.
257 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
261 *) Implement Opaque PRF Input TLS extension as specified in
262 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
263 official specification yet and no extension type assignment by
264 IANA exists, this extension (for now) will have to be explicitly
265 enabled when building OpenSSL by providing the extension number
266 to use. For example, specify an option
268 -DTLSEXT_TYPE_opaque_prf_input=0x9527
270 to the "config" or "Configure" script to enable the extension,
271 assuming extension number 0x9527 (which is a completely arbitrary
272 and unofficial assignment based on the MD5 hash of the Internet
273 Draft). Note that by doing so, you potentially lose
274 interoperability with other TLS implementations since these might
275 be using the same extension number for other purposes.
277 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
278 opaque PRF input value to use in the handshake. This will create
279 an interal copy of the length-'len' string at 'src', and will
280 return non-zero for success.
282 To get more control and flexibility, provide a callback function
285 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
286 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
290 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
293 Callback function 'cb' will be called in handshakes, and is
294 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
295 Argument 'arg' is for application purposes (the value as given to
296 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
297 be provided to the callback function). The callback function
298 has to return non-zero to report success: usually 1 to use opaque
299 PRF input just if possible, or 2 to enforce use of the opaque PRF
300 input. In the latter case, the library will abort the handshake
301 if opaque PRF input is not successfully negotiated.
303 Arguments 'peerinput' and 'len' given to the callback function
304 will always be NULL and 0 in the case of a client. A server will
305 see the client's opaque PRF input through these variables if
306 available (NULL and 0 otherwise). Note that if the server
307 provides an opaque PRF input, the length must be the same as the
308 length of the client's opaque PRF input.
310 Note that the callback function will only be called when creating
311 a new session (session resumption can resume whatever was
312 previously negotiated), and will not be called in SSL 2.0
313 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
314 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
315 for applications that need to enforce opaque PRF input.
319 *) Update ssl code to support digests other than SHA1+MD5 for handshake
322 [Victor B. Wagner <vitus@cryptocom.ru>]
324 *) Add RFC4507 support to OpenSSL. This includes the corrections in
325 RFC4507bis. The encrypted ticket format is an encrypted encoded
326 SSL_SESSION structure, that way new session features are automatically
329 If a client application caches session in an SSL_SESSION structure
330 support is transparent because tickets are now stored in the encoded
333 The SSL_CTX structure automatically generates keys for ticket
334 protection in servers so again support should be possible
335 with no application modification.
337 If a client or server wishes to disable RFC4507 support then the option
338 SSL_OP_NO_TICKET can be set.
340 Add a TLS extension debugging callback to allow the contents of any client
341 or server extensions to be examined.
343 This work was sponsored by Google.
346 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
347 OpenSSL should now compile cleanly on gcc 4.2
348 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
350 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
351 support including streaming MAC support: this is required for GOST
353 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
355 *) Add option -stream to use PKCS#7 streaming in smime utility. New
356 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
357 to output in BER and PEM format.
360 *) Experimental support for use of HMAC via EVP_PKEY interface. This
361 allows HMAC to be handled via the EVP_DigestSign*() interface. The
362 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
363 ENGINE support for HMAC keys which are unextractable. New -mac and
364 -macopt options to dgst utility.
367 *) New option -sigopt to dgst utility. Update dgst to use
368 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
369 alternative signing paramaters such as X9.31 or PSS in the dgst
373 *) Change ssl_cipher_apply_rule(), the internal function that does
374 the work each time a ciphersuite string requests enabling
375 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
376 removing ("!foo+bar") a class of ciphersuites: Now it maintains
377 the order of disabled ciphersuites such that those ciphersuites
378 that most recently went from enabled to disabled not only stay
379 in order with respect to each other, but also have higher priority
380 than other disabled ciphersuites the next time ciphersuites are
383 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
384 the same ciphersuites as with "HIGH" alone, but in a specific
385 order where the PSK ciphersuites come first (since they are the
386 most recently disabled ciphersuites when "HIGH" is parsed).
388 Also, change ssl_create_cipher_list() (using this new
389 funcionality) such that between otherwise identical
390 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
394 *) Change ssl_create_cipher_list() so that it automatically
395 arranges the ciphersuites in reasonable order before starting
396 to process the rule string. Thus, the definition for "DEFAULT"
397 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
398 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
399 This makes it much easier to arrive at a reasonable default order
400 in applications for which anonymous ciphers are OK (meaning
401 that you can't actually use DEFAULT).
402 [Bodo Moeller; suggested by Victor Duchovni]
404 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
405 processing) into multiple integers instead of setting
406 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
407 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
408 (These masks as well as the individual bit definitions are hidden
409 away into the non-exported interface ssl/ssl_locl.h, so this
410 change to the definition of the SSL_CIPHER structure shouldn't
411 affect applications.) This give us more bits for each of these
412 categories, so there is no longer a need to coagulate AES128 and
413 AES256 into a single algorithm bit, and to coagulate Camellia128
414 and Camellia256 into a single algorithm bit, which has led to all
417 Thus, among other things, the kludge introduced in 0.9.7m and
418 0.9.8e for masking out AES256 independently of AES128 or masking
419 out Camellia256 independently of AES256 is not needed here in 0.9.9.
421 With the change, we also introduce new ciphersuite aliases that
422 so far were missing: "AES128", "AES256", "CAMELLIA128", and
426 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
427 Use the leftmost N bytes of the signature input if the input is
428 larger than the prime q (with N being the size in bytes of q).
431 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
432 it yet and it is largely untested.
435 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
438 *) Initial incomplete changes to avoid need for function casts in OpenSSL
439 some compilers (gcc 4.2 and later) reject their use. Safestack is
440 reimplemented. Update ASN1 to avoid use of legacy functions.
443 *) Win32/64 targets are linked with Winsock2.
446 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
447 to external functions. This can be used to increase CRL handling
448 efficiency especially when CRLs are very large by (for example) storing
449 the CRL revoked certificates in a database.
452 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
453 new CRLs added to a directory can be used. New command line option
454 -verify_return_error to s_client and s_server. This causes real errors
455 to be returned by the verify callback instead of carrying on no matter
456 what. This reflects the way a "real world" verify callback would behave.
459 *) GOST engine, supporting several GOST algorithms and public key formats.
460 Kindly donated by Cryptocom.
463 *) Partial support for Issuing Distribution Point CRL extension. CRLs
464 partitioned by DP are handled but no indirect CRL or reason partitioning
465 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
466 selected via a scoring technique which handles IDP and AKID in CRLs.
469 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
470 will ultimately be used for all verify operations: this will remove the
471 X509_STORE dependency on certificate verification and allow alternative
472 lookup methods. X509_STORE based implementations of these two callbacks.
475 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
476 Modify get_crl() to find a valid (unexpired) CRL if possible.
479 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
480 this would be called X509_CRL_cmp() but that name is already used by
481 a function that just compares CRL issuer names. Cache several CRL
482 extensions in X509_CRL structure and cache CRLDP in X509.
485 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
486 this maps equivalent X509_NAME structures into a consistent structure.
487 Name comparison can then be performed rapidly using memcmp().
490 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
494 *) Allow digests to supply their own micalg string for S/MIME type using
495 the ctrl EVP_MD_CTRL_MICALG.
498 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
499 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
500 ctrl. It can then customise the structure before and/or after signing
504 *) New function OBJ_add_sigid() to allow application defined signature OIDs
505 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
506 to free up any added signature OIDs.
509 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
510 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
511 digest and cipher tables. New options added to openssl utility:
512 list-message-digest-algorithms and list-cipher-algorithms.
515 *) Change the array representation of binary polynomials: the list
516 of degrees of non-zero coefficients is now terminated with -1.
517 Previously it was terminated with 0, which was also part of the
518 value; thus, the array representation was not applicable to
519 polynomials where t^0 has coefficient zero. This change makes
520 the array representation useful in a more general context.
523 *) Various modifications and fixes to SSL/TLS cipher string
524 handling. For ECC, the code now distinguishes between fixed ECDH
525 with RSA certificates on the one hand and with ECDSA certificates
526 on the other hand, since these are separate ciphersuites. The
527 unused code for Fortezza ciphersuites has been removed.
529 For consistency with EDH, ephemeral ECDH is now called "EECDH"
530 (not "ECDHE"). For consistency with the code for DH
531 certificates, use of ECDH certificates is now considered ECDH
532 authentication, not RSA or ECDSA authentication (the latter is
533 merely the CA's signing algorithm and not actively used in the
536 The temporary ciphersuite alias "ECCdraft" is no longer
537 available, and ECC ciphersuites are no longer excluded from "ALL"
538 and "DEFAULT". The following aliases now exist for RFC 4492
539 ciphersuites, most of these by analogy with the DH case:
541 kECDHr - ECDH cert, signed with RSA
542 kECDHe - ECDH cert, signed with ECDSA
543 kECDH - ECDH cert (signed with either RSA or ECDSA)
544 kEECDH - ephemeral ECDH
545 ECDH - ECDH cert or ephemeral ECDH
551 AECDH - anonymous ECDH
552 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
556 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
557 Use correct micalg parameters depending on digest(s) in signed message.
560 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
561 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
564 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
565 an engine to register a method. Add ENGINE lookups for methods and
566 functional reference processing.
569 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
570 EVP_{Sign,Verify}* which allow an application to customise the signature
574 *) New -resign option to smime utility. This adds one or more signers
575 to an existing PKCS#7 signedData structure. Also -md option to use an
576 alternative message digest algorithm for signing.
579 *) Tidy up PKCS#7 routines and add new functions to make it easier to
580 create PKCS7 structures containing multiple signers. Update smime
581 application to support multiple signers.
584 *) New -macalg option to pkcs12 utility to allow setting of an alternative
588 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
589 Reorganize PBE internals to lookup from a static table using NIDs,
590 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
591 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
592 PRF which will be automatically used with PBES2.
595 *) Replace the algorithm specific calls to generate keys in "req" with the
599 *) Update PKCS#7 enveloped data routines to use new API. This is now
600 supported by any public key method supporting the encrypt operation. A
601 ctrl is added to allow the public key algorithm to examine or modify
602 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
606 *) Add a ctrl to asn1 method to allow a public key algorithm to express
607 a default digest type to use. In most cases this will be SHA1 but some
608 algorithms (such as GOST) need to specify an alternative digest. The
609 return value indicates how strong the prefernce is 1 means optional and
610 2 is mandatory (that is it is the only supported type). Modify
611 ASN1_item_sign() to accept a NULL digest argument to indicate it should
612 use the default md. Update openssl utilities to use the default digest
613 type for signing if it is not explicitly indicated.
616 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
617 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
618 signing method from the key type. This effectively removes the link
619 between digests and public key types.
622 *) Add an OID cross reference table and utility functions. Its purpose is to
623 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
624 rsaEncryption. This will allow some of the algorithm specific hackery
625 needed to use the correct OID to be removed.
628 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
629 structures for PKCS7_sign(). They are now set up by the relevant public
633 *) Add provisional EC pkey method with support for ECDSA and ECDH.
636 *) Add support for key derivation (agreement) in the API, DH method and
640 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
641 public and private key formats. As a side effect these add additional
642 command line functionality not previously available: DSA signatures can be
643 generated and verified using pkeyutl and DH key support and generation in
648 [Oliver Tappe <zooey@hirschkaefer.de>]
650 *) New make target "install_html_docs" installs HTML renditions of the
652 [Oliver Tappe <zooey@hirschkaefer.de>]
654 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
655 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
656 support key and parameter generation and add initial key generation
657 functionality for RSA.
660 *) Add functions for main EVP_PKEY_method operations. The undocumented
661 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
662 EVP_PKEY_{encrypt,decrypt}_old.
665 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
666 key API, doesn't do much yet.
669 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
670 public key algorithms. New option to openssl utility:
671 "list-public-key-algorithms" to print out info.
674 *) Implement the Supported Elliptic Curves Extension for
675 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
678 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
679 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
682 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
683 utilities such as rsa, dsa, dsaparam etc except they process any key
687 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
688 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
689 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
693 *) Initial support for pluggable public key ASN1.
694 De-spaghettify the public key ASN1 handling. Move public and private
695 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
696 algorithm specific handling to a single module within the relevant
697 algorithm directory. Add functions to allow (near) opaque processing
698 of public and private key structures.
701 *) Implement the Supported Point Formats Extension for
702 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
705 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
706 for the psk identity [hint] and the psk callback functions to the
707 SSL_SESSION, SSL and SSL_CTX structure.
710 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
714 SSL_CTX_use_psk_identity_hint
715 SSL_get_psk_identity_hint
717 SSL_use_psk_identity_hint
719 [Mika Kousa and Pasi Eronen of Nokia Corporation]
721 *) Add RFC 3161 compliant time stamp request creation, response generation
722 and response verification functionality.
723 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
725 *) Add initial support for TLS extensions, specifically for the server_name
726 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
727 have new members for a host name. The SSL data structure has an
728 additional member SSL_CTX *initial_ctx so that new sessions can be
729 stored in that context to allow for session resumption, even after the
730 SSL has been switched to a new SSL_CTX in reaction to a client's
731 server_name extension.
733 New functions (subject to change):
736 SSL_get_servername_type()
739 New CTRL codes and macros (subject to change):
741 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
742 - SSL_CTX_set_tlsext_servername_callback()
743 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
744 - SSL_CTX_set_tlsext_servername_arg()
745 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
747 openssl s_client has a new '-servername ...' option.
749 openssl s_server has new options '-servername_host ...', '-cert2 ...',
750 '-key2 ...', '-servername_fatal' (subject to change). This allows
751 testing the HostName extension for a specific single host name ('-cert'
752 and '-key' remain fallbacks for handshakes without HostName
753 negotiation). If the unrecogninzed_name alert has to be sent, this by
754 default is a warning; it becomes fatal with the '-servername_fatal'
757 [Peter Sylvester, Remy Allais, Christophe Renou]
759 *) Whirlpool hash implementation is added.
762 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
763 bn(64,32). Because of instruction set limitations it doesn't have
764 any negative impact on performance. This was done mostly in order
765 to make it possible to share assembler modules, such as bn_mul_mont
766 implementations, between 32- and 64-bit builds without hassle.
769 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
770 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
774 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
775 dedicated Montgomery multiplication procedure, is introduced.
776 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
777 "64-bit" performance on certain 32-bit targets.
780 *) New option SSL_OP_NO_COMP to disable use of compression selectively
781 in SSL structures. New SSL ctrl to set maximum send fragment size.
782 Save memory by seeting the I/O buffer sizes dynamically instead of
783 using the maximum available value.
786 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
787 in addition to the text details.
790 *) Very, very preliminary EXPERIMENTAL support for printing of general
791 ASN1 structures. This currently produces rather ugly output and doesn't
792 handle several customised structures at all.
795 *) Integrated support for PVK file format and some related formats such
796 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
797 these in the 'rsa' and 'dsa' utilities.
800 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
803 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
804 place for the (very old) "NETSCAPE" format certificates which are now
805 handled using new ASN1 code equivalents.
808 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
809 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
810 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
813 *) Modify CRL distribution points extension code to print out previously
814 unsupported fields. Enhance extension setting code to allow setting of
818 *) Add print and set support for Issuing Distribution Point CRL extension.
821 *) Change 'Configure' script to enable Camellia by default.
824 Changes between 0.9.8k and 0.9.8l [xx XXX xxxx]
826 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
827 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
828 fixes for a few places where the return code is not checked
830 [Julia Lawall <julia@diku.dk>]
832 *) Add --strict-warnings option to Configure script to include devteam
833 warnings in other configurations.
836 *) Add support for --libdir option and LIBDIR variable in makefiles. This
837 makes it possible to install openssl libraries in locations which
838 have names other than "lib", for example "/usr/lib64" which some
840 [Steve Henson, based on patch from Jeremy Utley]
842 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
843 X690 8.9.12 and can produce some misleading textual output of OIDs.
844 [Steve Henson, reported by Dan Kaminsky]
846 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
850 *) Fix the server certificate chain building code to use X509_verify_cert(),
851 it used to have an ad-hoc builder which was unable to cope with anything
852 other than a simple chain.
853 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
855 *) Don't check self signed certificate signatures in X509_verify_cert()
856 by default (a flag can override this): it just wastes time without
857 adding any security. As a useful side effect self signed root CAs
858 with non-FIPS digests are now usable in FIPS mode.
861 *) In dtls1_process_out_of_seq_message() the check if the current message
862 is already buffered was missing. For every new message was memory
863 allocated, allowing an attacker to perform an denial of service attack
864 with sending out of seq handshake messages until there is no memory
865 left. Additionally every future messege was buffered, even if the
866 sequence number made no sense and would be part of another handshake.
867 So only messages with sequence numbers less than 10 in advance will be
869 [Robin Seggelmann, discovered by Daniel Mentz]
871 *) Records are buffered if they arrive with a future epoch to be
872 processed after finishing the corresponding handshake. There is
873 currently no limitation to this buffer allowing an attacker to perform
874 a DOS attack with sending records with future epochs until there is no
875 memory left. This patch adds the pqueue_size() function to detemine
876 the size of a buffer and limits the record buffer to 100 entries.
877 [Robin Seggelmann, discovered by Daniel Mentz]
879 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
880 parent structure is freed.
883 *) Handle non-blocking I/O properly in SSL_shutdown() call.
884 [Darryl Miles <darryl-mailinglists@netbauds.net>]
887 [Ilya O. <vrghost@gmail.com>]
889 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
891 *) Don't set val to NULL when freeing up structures, it is freed up by
892 underlying code. If sizeof(void *) > sizeof(long) this can result in
893 zeroing past the valid field. (CVE-2009-0789)
894 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
896 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
897 checked correctly. This would allow some invalid signed attributes to
898 appear to verify correctly. (CVE-2009-0591)
899 [Ivan Nestlerode <inestlerode@us.ibm.com>]
901 *) Reject UniversalString and BMPString types with invalid lengths. This
902 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
903 a legal length. (CVE-2009-0590)
906 *) Set S/MIME signing as the default purpose rather than setting it
907 unconditionally. This allows applications to override it at the store
911 *) Permit restricted recursion of ASN1 strings. This is needed in practice
912 to handle some structures.
915 *) Improve efficiency of mem_gets: don't search whole buffer each time
917 [Jeremy Shapiro <jnshapir@us.ibm.com>]
919 *) New -hex option for openssl rand.
922 *) Print out UTF8String and NumericString when parsing ASN1.
925 *) Support NumericString type for name components.
928 *) Allow CC in the environment to override the automatically chosen
929 compiler. Note that nothing is done to ensure flags work with the
933 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
935 *) Properly check EVP_VerifyFinal() and similar return values
937 [Ben Laurie, Bodo Moeller, Google Security Team]
939 *) Enable TLS extensions by default.
942 *) Allow the CHIL engine to be loaded, whether the application is
943 multithreaded or not. (This does not release the developer from the
944 obligation to set up the dynamic locking callbacks.)
945 [Sander Temme <sander@temme.net>]
947 *) Use correct exit code if there is an error in dgst command.
948 [Steve Henson; problem pointed out by Roland Dirlewanger]
950 *) Tweak Configure so that you need to say "experimental-jpake" to enable
951 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
954 *) Add experimental JPAKE support, including demo authentication in
955 s_client and s_server.
958 *) Set the comparison function in v3_addr_canonize().
959 [Rob Austein <sra@hactrn.net>]
961 *) Add support for XMPP STARTTLS in s_client.
962 [Philip Paeps <philip@freebsd.org>]
964 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
965 to ensure that even with this option, only ciphersuites in the
966 server's preference list will be accepted. (Note that the option
967 applies only when resuming a session, so the earlier behavior was
968 just about the algorithm choice for symmetric cryptography.)
971 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
973 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
974 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
977 *) The fix in 0.9.8c that supposedly got rid of unsafe
978 double-checked locking was incomplete for RSA blinding,
979 addressing just one layer of what turns out to have been
980 doubly unsafe triple-checked locking.
982 So now fix this for real by retiring the MONT_HELPER macro
983 in crypto/rsa/rsa_eay.c.
985 [Bodo Moeller; problem pointed out by Marius Schilder]
987 *) Various precautionary measures:
989 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
991 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
992 (NB: This would require knowledge of the secret session ticket key
993 to exploit, in which case you'd be SOL either way.)
995 - Change bn_nist.c so that it will properly handle input BIGNUMs
996 outside the expected range.
998 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1001 [Neel Mehta, Bodo Moeller]
1003 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1004 the load fails. Useful for distros.
1005 [Ben Laurie and the FreeBSD team]
1007 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1010 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1013 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1015 This work was sponsored by Logica.
1018 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1019 keystores. Support for SSL/TLS client authentication too.
1020 Not compiled unless enable-capieng specified to Configure.
1022 This work was sponsored by Logica.
1025 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1026 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1027 attribute creation routines such as certifcate requests and PKCS#12
1031 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1033 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1034 handshake which could lead to a cilent crash as found using the
1035 Codenomicon TLS test suite (CVE-2008-1672)
1036 [Steve Henson, Mark Cox]
1038 *) Fix double free in TLS server name extensions which could lead to
1039 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1042 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1044 Clear the error queue to ensure that error entries left from
1045 older function calls do not interfere with the correct operation.
1046 [Lutz Jaenicke, Erik de Castro Lopo]
1048 *) Remove root CA certificates of commercial CAs:
1050 The OpenSSL project does not recommend any specific CA and does not
1051 have any policy with respect to including or excluding any CA.
1052 Therefore it does not make any sense to ship an arbitrary selection
1053 of root CA certificates with the OpenSSL software.
1056 *) RSA OAEP patches to fix two separate invalid memory reads.
1057 The first one involves inputs when 'lzero' is greater than
1058 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1059 before the beginning of from). The second one involves inputs where
1060 the 'db' section contains nothing but zeroes (there is a one-byte
1061 invalid read after the end of 'db').
1062 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1064 *) Partial backport from 0.9.9-dev:
1066 Introduce bn_mul_mont (dedicated Montgomery multiplication
1067 procedure) as a candidate for BIGNUM assembler implementation.
1068 While 0.9.9-dev uses assembler for various architectures, only
1069 x86_64 is available by default here in the 0.9.8 branch, and
1070 32-bit x86 is available through a compile-time setting.
1072 To try the 32-bit x86 assembler implementation, use Configure
1073 option "enable-montasm" (which exists only for this backport).
1075 As "enable-montasm" for 32-bit x86 disclaims code stability
1076 anyway, in this constellation we activate additional code
1077 backported from 0.9.9-dev for further performance improvements,
1078 namely BN_from_montgomery_word. (To enable this otherwise,
1079 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1081 [Andy Polyakov (backport partially by Bodo Moeller)]
1083 *) Add TLS session ticket callback. This allows an application to set
1084 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1085 values. This is useful for key rollover for example where several key
1086 sets may exist with different names.
1089 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1090 This was broken until now in 0.9.8 releases, such that the only way
1091 a registered ENGINE could be used (assuming it initialises
1092 successfully on the host) was to explicitly set it as the default
1093 for the relevant algorithms. This is in contradiction with 0.9.7
1094 behaviour and the documentation. With this fix, when an ENGINE is
1095 registered into a given algorithm's table of implementations, the
1096 'uptodate' flag is reset so that auto-discovery will be used next
1097 time a new context for that algorithm attempts to select an
1099 [Ian Lister (tweaked by Geoff Thorpe)]
1101 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1102 implemention in the following ways:
1104 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1107 Lack of BER streaming support means one pass streaming processing is
1108 only supported if data is detached: setting the streaming flag is
1109 ignored for embedded content.
1111 CMS support is disabled by default and must be explicitly enabled
1112 with the enable-cms configuration option.
1115 *) Update the GMP engine glue to do direct copies between BIGNUM and
1116 mpz_t when openssl and GMP use the same limb size. Otherwise the
1117 existing "conversion via a text string export" trick is still used.
1118 [Paul Sheer <paulsheer@gmail.com>]
1120 *) Zlib compression BIO. This is a filter BIO which compressed and
1121 uncompresses any data passed through it.
1124 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1125 RFC3394 compatible AES key wrapping.
1128 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1129 sets string data without copying. X509_ALGOR_set0() and
1130 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1131 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1132 from an X509_ATTRIBUTE structure optionally checking it occurs only
1133 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1137 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1138 to get the expected BN_FLG_CONSTTIME behavior.
1139 [Bodo Moeller (Google)]
1143 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1144 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1145 - added some more tests to do_tests.pl
1146 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1147 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1148 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1149 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1150 - various changes to netware.pl to enable gcc-cross builds on Win32
1152 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1153 - various changes to fix missing prototype warnings
1154 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1155 - added AES, WHIRLPOOL and CPUID assembler code to build files
1156 - added missing AES assembler make rules to mk1mf.pl
1157 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1158 [Guenter Knauf <eflash@gmx.net>]
1160 *) Implement certificate status request TLS extension defined in RFC3546.
1161 A client can set the appropriate parameters and receive the encoded
1162 OCSP response via a callback. A server can query the supplied parameters
1163 and set the encoded OCSP response in the callback. Add simplified examples
1164 to s_client and s_server.
1167 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1169 *) Fix various bugs:
1170 + Binary incompatibility of ssl_ctx_st structure
1171 + DTLS interoperation with non-compliant servers
1172 + Don't call get_session_cb() without proposed session
1173 + Fix ia64 assembler code
1174 [Andy Polyakov, Steve Henson]
1176 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1178 *) DTLS Handshake overhaul. There were longstanding issues with
1179 OpenSSL DTLS implementation, which were making it impossible for
1180 RFC 4347 compliant client to communicate with OpenSSL server.
1181 Unfortunately just fixing these incompatibilities would "cut off"
1182 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1183 server keeps tolerating non RFC compliant syntax. The opposite is
1184 not true, 0.9.8f client can not communicate with earlier server.
1185 This update even addresses CVE-2007-4995.
1188 *) Changes to avoid need for function casts in OpenSSL: some compilers
1189 (gcc 4.2 and later) reject their use.
1190 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1193 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1194 RFC4507bis. The encrypted ticket format is an encrypted encoded
1195 SSL_SESSION structure, that way new session features are automatically
1198 If a client application caches session in an SSL_SESSION structure
1199 support is transparent because tickets are now stored in the encoded
1202 The SSL_CTX structure automatically generates keys for ticket
1203 protection in servers so again support should be possible
1204 with no application modification.
1206 If a client or server wishes to disable RFC4507 support then the option
1207 SSL_OP_NO_TICKET can be set.
1209 Add a TLS extension debugging callback to allow the contents of any client
1210 or server extensions to be examined.
1212 This work was sponsored by Google.
1215 *) Add initial support for TLS extensions, specifically for the server_name
1216 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1217 have new members for a host name. The SSL data structure has an
1218 additional member SSL_CTX *initial_ctx so that new sessions can be
1219 stored in that context to allow for session resumption, even after the
1220 SSL has been switched to a new SSL_CTX in reaction to a client's
1221 server_name extension.
1223 New functions (subject to change):
1225 SSL_get_servername()
1226 SSL_get_servername_type()
1229 New CTRL codes and macros (subject to change):
1231 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1232 - SSL_CTX_set_tlsext_servername_callback()
1233 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1234 - SSL_CTX_set_tlsext_servername_arg()
1235 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1237 openssl s_client has a new '-servername ...' option.
1239 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1240 '-key2 ...', '-servername_fatal' (subject to change). This allows
1241 testing the HostName extension for a specific single host name ('-cert'
1242 and '-key' remain fallbacks for handshakes without HostName
1243 negotiation). If the unrecogninzed_name alert has to be sent, this by
1244 default is a warning; it becomes fatal with the '-servername_fatal'
1247 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1249 *) Add AES and SSE2 assembly language support to VC++ build.
1252 *) Mitigate attack on final subtraction in Montgomery reduction.
1255 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1256 (which previously caused an internal error).
1259 *) Squeeze another 10% out of IGE mode when in != out.
1262 *) AES IGE mode speedup.
1263 [Dean Gaudet (Google)]
1265 *) Add the Korean symmetric 128-bit cipher SEED (see
1266 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1267 add SEED ciphersuites from RFC 4162:
1269 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1270 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1271 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1272 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1274 To minimize changes between patchlevels in the OpenSSL 0.9.8
1275 series, SEED remains excluded from compilation unless OpenSSL
1276 is configured with 'enable-seed'.
1277 [KISA, Bodo Moeller]
1279 *) Mitigate branch prediction attacks, which can be practical if a
1280 single processor is shared, allowing a spy process to extract
1281 information. For detailed background information, see
1282 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1283 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1284 and Necessary Software Countermeasures"). The core of the change
1285 are new versions BN_div_no_branch() and
1286 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1287 respectively, which are slower, but avoid the security-relevant
1288 conditional branches. These are automatically called by BN_div()
1289 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1290 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1291 remove a conditional branch.
1293 BN_FLG_CONSTTIME is the new name for the previous
1294 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1295 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1296 in the exponent causes BN_mod_exp_mont() to use the alternative
1297 implementation in BN_mod_exp_mont_consttime().) The old name
1298 remains as a deprecated alias.
1300 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1301 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1302 constant-time implementations for more than just exponentiation.
1303 Here too the old name is kept as a deprecated alias.
1305 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1306 the BN_BLINDING structure gets an independent copy of the
1307 modulus. This means that the previous "BIGNUM *m" argument to
1308 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1309 essentially becomes "const BIGNUM *m", although we can't actually
1310 change this in the header file before 0.9.9. It allows
1311 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1312 enable BN_FLG_CONSTTIME.
1314 [Matthew D Wood (Intel Corp)]
1316 *) In the SSL/TLS server implementation, be strict about session ID
1317 context matching (which matters if an application uses a single
1318 external cache for different purposes). Previously,
1319 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1320 set. This did ensure strict client verification, but meant that,
1321 with applications using a single external cache for quite
1322 different requirements, clients could circumvent ciphersuite
1323 restrictions for a given session ID context by starting a session
1324 in a different context.
1327 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1328 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1329 authentication-only ciphersuites.
1332 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1333 not complete and could lead to a possible single byte overflow
1334 (CVE-2007-5135) [Ben Laurie]
1336 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1338 *) Since AES128 and AES256 (and similarly Camellia128 and
1339 Camellia256) share a single mask bit in the logic of
1340 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1341 kludge to work properly if AES128 is available and AES256 isn't
1342 (or if Camellia128 is available and Camellia256 isn't).
1345 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1346 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1347 When a point or a seed is encoded in a BIT STRING, we need to
1348 prevent the removal of trailing zero bits to get the proper DER
1349 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1350 of a NamedBitList, for which trailing 0 bits need to be removed.)
1353 *) Have SSL/TLS server implementation tolerate "mismatched" record
1354 protocol version while receiving ClientHello even if the
1355 ClientHello is fragmented. (The server can't insist on the
1356 particular protocol version it has chosen before the ServerHello
1357 message has informed the client about his choice.)
1360 *) Add RFC 3779 support.
1361 [Rob Austein for ARIN, Ben Laurie]
1363 *) Load error codes if they are not already present instead of using a
1364 static variable. This allows them to be cleanly unloaded and reloaded.
1365 Improve header file function name parsing.
1368 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1369 or CAPABILITY handshake as required by RFCs.
1372 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1374 *) Introduce limits to prevent malicious keys being able to
1375 cause a denial of service. (CVE-2006-2940)
1376 [Steve Henson, Bodo Moeller]
1378 *) Fix ASN.1 parsing of certain invalid structures that can result
1379 in a denial of service. (CVE-2006-2937) [Steve Henson]
1381 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1382 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1384 *) Fix SSL client code which could crash if connecting to a
1385 malicious SSLv2 server. (CVE-2006-4343)
1386 [Tavis Ormandy and Will Drewry, Google Security Team]
1388 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1389 match only those. Before that, "AES256-SHA" would be interpreted
1390 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1391 the same strength classification in 0.9.7h) as we currently only
1392 have a single AES bit in the ciphersuite description bitmap.
1393 That change, however, also applied to ciphersuite strings such as
1394 "RC4-MD5" that intentionally matched multiple ciphersuites --
1395 namely, SSL 2.0 ciphersuites in addition to the more common ones
1396 from SSL 3.0/TLS 1.0.
1398 So we change the selection algorithm again: Naming an explicit
1399 ciphersuite selects this one ciphersuite, and any other similar
1400 ciphersuite (same bitmap) from *other* protocol versions.
1401 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1402 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1404 Since SSL 2.0 does not have any ciphersuites for which the
1405 128/256 bit distinction would be relevant, this works for now.
1406 The proper fix will be to use different bits for AES128 and
1407 AES256, which would have avoided the problems from the beginning;
1408 however, bits are scarce, so we can only do this in a new release
1409 (not just a patchlevel) when we can change the SSL_CIPHER
1410 definition to split the single 'unsigned long mask' bitmap into
1411 multiple values to extend the available space.
1415 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1417 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1418 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1420 *) Add AES IGE and biIGE modes.
1423 *) Change the Unix randomness entropy gathering to use poll() when
1424 possible instead of select(), since the latter has some
1425 undesirable limitations.
1426 [Darryl Miles via Richard Levitte and Bodo Moeller]
1428 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1429 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1430 cannot be implicitly activated as part of, e.g., the "AES" alias.
1431 However, please upgrade to OpenSSL 0.9.9[-dev] for
1432 non-experimental use of the ECC ciphersuites to get TLS extension
1433 support, which is required for curve and point format negotiation
1434 to avoid potential handshake problems.
1437 *) Disable rogue ciphersuites:
1439 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1440 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1441 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1443 The latter two were purportedly from
1444 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1447 Also deactivate the remaining ciphersuites from
1448 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1449 unofficial, and the ID has long expired.
1452 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1453 dual-core machines) and other potential thread-safety issues.
1456 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1457 versions), which is now available for royalty-free use
1458 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1459 Also, add Camellia TLS ciphersuites from RFC 4132.
1461 To minimize changes between patchlevels in the OpenSSL 0.9.8
1462 series, Camellia remains excluded from compilation unless OpenSSL
1463 is configured with 'enable-camellia'.
1466 *) Disable the padding bug check when compression is in use. The padding
1467 bug check assumes the first packet is of even length, this is not
1468 necessarily true if compresssion is enabled and can result in false
1469 positives causing handshake failure. The actual bug test is ancient
1470 code so it is hoped that implementations will either have fixed it by
1471 now or any which still have the bug do not support compression.
1474 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1476 *) When applying a cipher rule check to see if string match is an explicit
1477 cipher suite and only match that one cipher suite if it is.
1480 *) Link in manifests for VC++ if needed.
1481 [Austin Ziegler <halostatue@gmail.com>]
1483 *) Update support for ECC-based TLS ciphersuites according to
1484 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1485 TLS extensions, which are supported starting with the 0.9.9
1486 branch, not in the OpenSSL 0.9.8 branch).
1489 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1490 opaque EVP_CIPHER_CTX handling.
1493 *) Fixes and enhancements to zlib compression code. We now only use
1494 "zlib1.dll" and use the default __cdecl calling convention on Win32
1495 to conform with the standards mentioned here:
1496 http://www.zlib.net/DLL_FAQ.txt
1497 Static zlib linking now works on Windows and the new --with-zlib-include
1498 --with-zlib-lib options to Configure can be used to supply the location
1499 of the headers and library. Gracefully handle case where zlib library
1503 *) Several fixes and enhancements to the OID generation code. The old code
1504 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1505 handle numbers larger than ULONG_MAX, truncated printing and had a
1506 non standard OBJ_obj2txt() behaviour.
1509 *) Add support for building of engines under engine/ as shared libraries
1510 under VC++ build system.
1513 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1514 Hopefully, we will not see any false combination of paths any more.
1517 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1519 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1520 (part of SSL_OP_ALL). This option used to disable the
1521 countermeasure against man-in-the-middle protocol-version
1522 rollback in the SSL 2.0 server implementation, which is a bad
1523 idea. (CVE-2005-2969)
1525 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1526 for Information Security, National Institute of Advanced Industrial
1527 Science and Technology [AIST], Japan)]
1529 *) Add two function to clear and return the verify parameter flags.
1532 *) Keep cipherlists sorted in the source instead of sorting them at
1533 runtime, thus removing the need for a lock.
1536 *) Avoid some small subgroup attacks in Diffie-Hellman.
1537 [Nick Mathewson and Ben Laurie]
1539 *) Add functions for well-known primes.
1542 *) Extended Windows CE support.
1543 [Satoshi Nakamura and Andy Polyakov]
1545 *) Initialize SSL_METHOD structures at compile time instead of during
1546 runtime, thus removing the need for a lock.
1549 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1550 attempting to decrypt each encrypted key in turn. Add support to
1554 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1556 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1559 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1562 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1563 key into the same file any more.
1566 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1569 *) Add -utf8 command line and config file option to 'ca'.
1570 [Stefan <stf@udoma.org]
1572 *) Removed the macro des_crypt(), as it seems to conflict with some
1573 libraries. Use DES_crypt().
1576 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1577 involves renaming the source and generated shared-libs for
1578 both. The engines will accept the corrected or legacy ids
1579 ('ncipher' and '4758_cca' respectively) when binding. NB,
1580 this only applies when building 'shared'.
1581 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1583 *) Add attribute functions to EVP_PKEY structure. Modify
1584 PKCS12_create() to recognize a CSP name attribute and
1585 use it. Make -CSP option work again in pkcs12 utility.
1588 *) Add new functionality to the bn blinding code:
1589 - automatic re-creation of the BN_BLINDING parameters after
1590 a fixed number of uses (currently 32)
1591 - add new function for parameter creation
1592 - introduce flags to control the update behaviour of the
1593 BN_BLINDING parameters
1594 - hide BN_BLINDING structure
1595 Add a second BN_BLINDING slot to the RSA structure to improve
1596 performance when a single RSA object is shared among several
1600 *) Add support for DTLS.
1601 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1603 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1604 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1607 *) Remove buggy and incompletet DH cert support from
1608 ssl/ssl_rsa.c and ssl/s3_both.c
1611 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1612 the apps/openssl applications.
1615 *) Compile clean with "-Wall -Wmissing-prototypes
1616 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1617 DEBUG_SAFESTACK must also be set.
1620 *) Change ./Configure so that certain algorithms can be disabled by default.
1621 The new counterpiece to "no-xxx" is "enable-xxx".
1623 The patented RC5 and MDC2 algorithms will now be disabled unless
1624 "enable-rc5" and "enable-mdc2", respectively, are specified.
1626 (IDEA remains enabled despite being patented. This is because IDEA
1627 is frequently required for interoperability, and there is no license
1628 fee for non-commercial use. As before, "no-idea" can be used to
1629 avoid this algorithm.)
1633 *) Add processing of proxy certificates (see RFC 3820). This work was
1634 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1635 EGEE (Enabling Grids for E-science in Europe).
1638 *) RC4 performance overhaul on modern architectures/implementations, such
1639 as Intel P4, IA-64 and AMD64.
1642 *) New utility extract-section.pl. This can be used specify an alternative
1643 section number in a pod file instead of having to treat each file as
1644 a separate case in Makefile. This can be done by adding two lines to the
1647 =for comment openssl_section:XXX
1649 The blank line is mandatory.
1653 *) New arguments -certform, -keyform and -pass for s_client and s_server
1654 to allow alternative format key and certificate files and passphrase
1658 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1659 update associated structures and add various utility functions.
1661 Add new policy related verify parameters, include policy checking in
1662 standard verify code. Enhance 'smime' application with extra parameters
1663 to support policy checking and print out.
1666 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1667 Nehemiah processors. These extensions support AES encryption in hardware
1668 as well as RNG (though RNG support is currently disabled).
1669 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1671 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1674 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1675 [Andy Polyakov and a number of other people]
1677 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1678 implementation contributed by IBM.
1679 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1681 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1682 exponent rather than 'unsigned long'. There is a corresponding change to
1683 the new 'rsa_keygen' element of the RSA_METHOD structure.
1684 [Jelte Jansen, Geoff Thorpe]
1686 *) Functionality for creating the initial serial number file is now
1687 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1689 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1690 number file to 1, which is bound to cause problems. To avoid
1691 the problems while respecting compatibility between different 0.9.7
1692 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1693 CA.pl for serial number initialization. With the new release 0.9.8,
1694 we can fix the problem directly in the 'ca' utility.)
1697 *) Reduced header interdepencies by declaring more opaque objects in
1698 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1699 give fewer recursive includes, which could break lazy source code - so
1700 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1701 developers should define this symbol when building and using openssl to
1702 ensure they track the recommended behaviour, interfaces, [etc], but
1703 backwards-compatible behaviour prevails when this isn't defined.
1706 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1709 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1710 This will generate a random key of the appropriate length based on the
1711 cipher context. The EVP_CIPHER can provide its own random key generation
1712 routine to support keys of a specific form. This is used in the des and
1713 3des routines to generate a key of the correct parity. Update S/MIME
1714 code to use new functions and hence generate correct parity DES keys.
1715 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1716 valid (weak or incorrect parity).
1719 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1720 as looking them up. This is useful when the verified structure may contain
1721 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1722 present unless the new PKCS7_NO_CRL flag is asserted.
1725 *) Extend ASN1 oid configuration module. It now additionally accepts the
1728 shortName = some long name, 1.2.3.4
1731 *) Reimplemented the BN_CTX implementation. There is now no more static
1732 limitation on the number of variables it can handle nor the depth of the
1733 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1734 information can now expand as required, and rather than having a single
1735 static array of bignums, BN_CTX now uses a linked-list of such arrays
1736 allowing it to expand on demand whilst maintaining the usefulness of
1737 BN_CTX's "bundling".
1740 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1741 to allow all RSA operations to function using a single BN_CTX.
1744 *) Preliminary support for certificate policy evaluation and checking. This
1745 is initially intended to pass the tests outlined in "Conformance Testing
1746 of Relying Party Client Certificate Path Processing Logic" v1.07.
1749 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1750 remained unused and not that useful. A variety of other little bignum
1751 tweaks and fixes have also been made continuing on from the audit (see
1755 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1756 associated ASN1, EVP and SSL functions and old ASN1 macros.
1759 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1760 and this should never fail. So the return value from the use of
1761 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1762 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1765 *) BN_CTX_get() should return zero-valued bignums, providing the same
1766 initialised value as BN_new().
1767 [Geoff Thorpe, suggested by Ulf Möller]
1769 *) Support for inhibitAnyPolicy certificate extension.
1772 *) An audit of the BIGNUM code is underway, for which debugging code is
1773 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1774 is considered valid when processing BIGNUMs, and causes execution to
1775 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1776 further steps are taken to deliberately pollute unused data in BIGNUM
1777 structures to try and expose faulty code further on. For now, openssl will
1778 (in its default mode of operation) continue to tolerate the inconsistent
1779 forms that it has tolerated in the past, but authors and packagers should
1780 consider trying openssl and their own applications when compiled with
1781 these debugging symbols defined. It will help highlight potential bugs in
1782 their own code, and will improve the test coverage for OpenSSL itself. At
1783 some point, these tighter rules will become openssl's default to improve
1784 maintainability, though the assert()s and other overheads will remain only
1785 in debugging configurations. See bn.h for more details.
1786 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1788 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1789 that can only be obtained through BN_CTX_new() (which implicitly
1790 initialises it). The presence of this function only made it possible
1791 to overwrite an existing structure (and cause memory leaks).
1794 *) Because of the callback-based approach for implementing LHASH as a
1795 template type, lh_insert() adds opaque objects to hash-tables and
1796 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1797 to clean up those corresponding objects before destroying the hash table
1798 (and losing the object pointers). So some over-zealous constifications in
1799 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1800 objects as "const" and the lh_doall[_arg] callback wrappers are not
1801 prototyped to have "const" restrictions on the object pointers they are
1802 given (and so aren't required to cast them away any more).
1805 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1806 (speed) prefers to use its own implementation. The two implementations
1807 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1808 its object type properly exposed (MS_TM) instead of casting to/from "char
1809 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1810 aren't necessarily the greatest nomenclatures - but this is what was used
1811 internally to the implementation so I've used that for now.
1814 *) Ensure that deprecated functions do not get compiled when
1815 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1816 the self-tests were still using deprecated key-generation functions so
1817 these have been updated also.
1820 *) Reorganise PKCS#7 code to separate the digest location functionality
1821 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1822 New function PKCS7_set_digest() to set the digest type for PKCS#7
1823 digestedData type. Add additional code to correctly generate the
1824 digestedData type and add support for this type in PKCS7 initialization
1828 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1829 structure of type "other".
1832 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1833 sure the loop does correctly stop and breaking ("division by zero")
1834 modulus operations are not performed. The (pre-generated) prime
1835 table crypto/bn/bn_prime.h was already correct, but it could not be
1836 re-generated on some platforms because of the "division by zero"
1837 situation in the script.
1838 [Ralf S. Engelschall]
1840 *) Update support for ECC-based TLS ciphersuites according to
1841 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1842 SHA-1 now is only used for "small" curves (where the
1843 representation of a field element takes up to 24 bytes); for
1844 larger curves, the field element resulting from ECDH is directly
1845 used as premaster secret.
1846 [Douglas Stebila (Sun Microsystems Laboratories)]
1848 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1849 curve secp160r1 to the tests.
1850 [Douglas Stebila (Sun Microsystems Laboratories)]
1852 *) Add the possibility to load symbols globally with DSO.
1853 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1855 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1856 control of the error stack.
1859 *) Add support for STORE in ENGINE.
1862 *) Add the STORE type. The intention is to provide a common interface
1863 to certificate and key stores, be they simple file-based stores, or
1864 HSM-type store, or LDAP stores, or...
1865 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1868 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1869 pass a list of arguments to any function as well as provide a way
1870 for a function to pass data back to the caller.
1873 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1874 works like BUF_strdup() but can be used to duplicate a portion of
1875 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1879 *) Add the function sk_find_ex() which works like sk_find(), but will
1880 return an index to an element even if an exact match couldn't be
1881 found. The index is guaranteed to point at the element where the
1882 searched-for key would be inserted to preserve sorting order.
1885 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1886 takes an extra flags argument for optional functionality. Currently,
1887 the following flags are defined:
1889 OBJ_BSEARCH_VALUE_ON_NOMATCH
1890 This one gets OBJ_bsearch_ex() to return a pointer to the first
1891 element where the comparing function returns a negative or zero
1894 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1895 This one gets OBJ_bsearch_ex() to return a pointer to the first
1896 element where the comparing function returns zero. This is useful
1897 if there are more than one element where the comparing function
1901 *) Make it possible to create self-signed certificates with 'openssl ca'
1902 in such a way that the self-signed certificate becomes part of the
1903 CA database and uses the same mechanisms for serial number generation
1904 as all other certificate signing. The new flag '-selfsign' enables
1905 this functionality. Adapt CA.sh and CA.pl.in.
1908 *) Add functionality to check the public key of a certificate request
1909 against a given private. This is useful to check that a certificate
1910 request can be signed by that key (self-signing).
1913 *) Make it possible to have multiple active certificates with the same
1914 subject in the CA index file. This is done only if the keyword
1915 'unique_subject' is set to 'no' in the main CA section (default
1916 if 'CA_default') of the configuration file. The value is saved
1917 with the database itself in a separate index attribute file,
1918 named like the index file with '.attr' appended to the name.
1921 *) Generate muti valued AVAs using '+' notation in config files for
1925 *) Support for nameConstraints certificate extension.
1928 *) Support for policyConstraints certificate extension.
1931 *) Support for policyMappings certificate extension.
1934 *) Make sure the default DSA_METHOD implementation only uses its
1935 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1936 and change its own handlers to be NULL so as to remove unnecessary
1937 indirection. This lets alternative implementations fallback to the
1938 default implementation more easily.
1941 *) Support for directoryName in GeneralName related extensions
1945 *) Make it possible to link applications using Makefile.shared.
1946 Make that possible even when linking against static libraries!
1949 *) Support for single pass processing for S/MIME signing. This now
1950 means that S/MIME signing can be done from a pipe, in addition
1951 cleartext signing (multipart/signed type) is effectively streaming
1952 and the signed data does not need to be all held in memory.
1954 This is done with a new flag PKCS7_STREAM. When this flag is set
1955 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1956 is done after the data is output (and digests calculated) in
1957 SMIME_write_PKCS7().
1960 *) Add full support for -rpath/-R, both in shared libraries and
1961 applications, at least on the platforms where it's known how
1965 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1966 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1967 will now compute a table of multiples of the generator that
1968 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1969 faster (notably in the case of a single point multiplication,
1970 scalar * generator).
1971 [Nils Larsch, Bodo Moeller]
1973 *) IPv6 support for certificate extensions. The various extensions
1974 which use the IP:a.b.c.d can now take IPv6 addresses using the
1975 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1979 *) Added an ENGINE that implements RSA by performing private key
1980 exponentiations with the GMP library. The conversions to and from
1981 GMP's mpz_t format aren't optimised nor are any montgomery forms
1982 cached, and on x86 it appears OpenSSL's own performance has caught up.
1983 However there are likely to be other architectures where GMP could
1984 provide a boost. This ENGINE is not built in by default, but it can be
1985 specified at Configure time and should be accompanied by the necessary
1986 linker additions, eg;
1987 ./config -DOPENSSL_USE_GMP -lgmp
1990 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1991 testing availability of engines with "-t" - the old behaviour is
1992 produced by increasing the feature's verbosity with "-tt".
1995 *) ECDSA routines: under certain error conditions uninitialized BN objects
1996 could be freed. Solution: make sure initialization is performed early
1997 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2001 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2002 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2003 software implementations. For DSA and DH, parameter generation can
2004 also be overriden by providing the appropriate method callbacks.
2007 *) Change the "progress" mechanism used in key-generation and
2008 primality testing to functions that take a new BN_GENCB pointer in
2009 place of callback/argument pairs. The new API functions have "_ex"
2010 postfixes and the older functions are reimplemented as wrappers for
2011 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2012 declarations of the old functions to help (graceful) attempts to
2013 migrate to the new functions. Also, the new key-generation API
2014 functions operate on a caller-supplied key-structure and return
2015 success/failure rather than returning a key or NULL - this is to
2016 help make "keygen" another member function of RSA_METHOD etc.
2018 Example for using the new callback interface:
2020 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2024 BN_GENCB_set(&my_cb, my_callback, my_arg);
2026 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2027 /* For the meaning of a, b in calls to my_callback(), see the
2028 * documentation of the function that calls the callback.
2029 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2030 * my_callback should return 1 if it wants BN_is_prime_ex()
2031 * to continue, or 0 to stop.
2036 *) Change the ZLIB compression method to be stateful, and make it
2037 available to TLS with the number defined in
2038 draft-ietf-tls-compression-04.txt.
2041 *) Add the ASN.1 structures and functions for CertificatePair, which
2042 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2044 CertificatePair ::= SEQUENCE {
2045 forward [0] Certificate OPTIONAL,
2046 reverse [1] Certificate OPTIONAL,
2047 -- at least one of the pair shall be present -- }
2049 Also implement the PEM functions to read and write certificate
2050 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2052 This needed to be defined, mostly for the sake of the LDAP
2053 attribute crossCertificatePair, but may prove useful elsewhere as
2057 *) Make it possible to inhibit symlinking of shared libraries in
2058 Makefile.shared, for Cygwin's sake.
2061 *) Extend the BIGNUM API by creating a function
2062 void BN_set_negative(BIGNUM *a, int neg);
2063 and a macro that behave like
2064 int BN_is_negative(const BIGNUM *a);
2066 to avoid the need to access 'a->neg' directly in applications.
2069 *) Implement fast modular reduction for pseudo-Mersenne primes
2070 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2071 EC_GROUP_new_curve_GFp() will now automatically use this
2073 [Nils Larsch <nla@trustcenter.de>]
2075 *) Add new lock type (CRYPTO_LOCK_BN).
2078 *) Change the ENGINE framework to automatically load engines
2079 dynamically from specific directories unless they could be
2080 found to already be built in or loaded. Move all the
2081 current engines except for the cryptodev one to a new
2083 The engines in engines/ are built as shared libraries if
2084 the "shared" options was given to ./Configure or ./config.
2085 Otherwise, they are inserted in libcrypto.a.
2086 /usr/local/ssl/engines is the default directory for dynamic
2087 engines, but that can be overriden at configure time through
2088 the usual use of --prefix and/or --openssldir, and at run
2089 time with the environment variable OPENSSL_ENGINES.
2090 [Geoff Thorpe and Richard Levitte]
2092 *) Add Makefile.shared, a helper makefile to build shared
2093 libraries. Addapt Makefile.org.
2096 *) Add version info to Win32 DLLs.
2097 [Peter 'Luna' Runestig" <peter@runestig.com>]
2099 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2100 can be added using this API to created arbitrary PKCS#12
2101 files while avoiding the low level API.
2103 New options to PKCS12_create(), key or cert can be NULL and
2104 will then be omitted from the output file. The encryption
2105 algorithm NIDs can be set to -1 for no encryption, the mac
2106 iteration count can be set to 0 to omit the mac.
2108 Enhance pkcs12 utility by making the -nokeys and -nocerts
2109 options work when creating a PKCS#12 file. New option -nomac
2110 to omit the mac, NONE can be set for an encryption algorithm.
2111 New code is modified to use the enhanced PKCS12_create()
2112 instead of the low level API.
2115 *) Extend ASN1 encoder to support indefinite length constructed
2116 encoding. This can output sequences tags and octet strings in
2117 this form. Modify pk7_asn1.c to support indefinite length
2118 encoding. This is experimental and needs additional code to
2119 be useful, such as an ASN1 bio and some enhanced streaming
2122 Extend template encode functionality so that tagging is passed
2123 down to the template encoder.
2126 *) Let 'openssl req' fail if an argument to '-newkey' is not
2127 recognized instead of using RSA as a default.
2130 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2131 As these are not official, they are not included in "ALL";
2132 the "ECCdraft" ciphersuite group alias can be used to select them.
2133 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2135 *) Add ECDH engine support.
2136 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2138 *) Add ECDH in new directory crypto/ecdh/.
2139 [Douglas Stebila (Sun Microsystems Laboratories)]
2141 *) Let BN_rand_range() abort with an error after 100 iterations
2142 without success (which indicates a broken PRNG).
2145 *) Change BN_mod_sqrt() so that it verifies that the input value
2146 is really the square of the return value. (Previously,
2147 BN_mod_sqrt would show GIGO behaviour.)
2150 *) Add named elliptic curves over binary fields from X9.62, SECG,
2151 and WAP/WTLS; add OIDs that were still missing.
2153 [Sheueling Chang Shantz and Douglas Stebila
2154 (Sun Microsystems Laboratories)]
2156 *) Extend the EC library for elliptic curves over binary fields
2157 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2160 EC_GF2m_simple_method
2164 EC_GROUP_new_curve_GF2m
2165 EC_GROUP_set_curve_GF2m
2166 EC_GROUP_get_curve_GF2m
2167 EC_POINT_set_affine_coordinates_GF2m
2168 EC_POINT_get_affine_coordinates_GF2m
2169 EC_POINT_set_compressed_coordinates_GF2m
2171 Point compression for binary fields is disabled by default for
2172 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2175 As binary polynomials are represented as BIGNUMs, various members
2176 of the EC_GROUP and EC_POINT data structures can be shared
2177 between the implementations for prime fields and binary fields;
2178 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2179 are essentially identical to their ..._GFp counterparts.
2180 (For simplicity, the '..._GFp' prefix has been dropped from
2181 various internal method names.)
2183 An internal 'field_div' method (similar to 'field_mul' and
2184 'field_sqr') has been added; this is used only for binary fields.
2186 [Sheueling Chang Shantz and Douglas Stebila
2187 (Sun Microsystems Laboratories)]
2189 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2190 through methods ('mul', 'precompute_mult').
2192 The generic implementations (now internally called 'ec_wNAF_mul'
2193 and 'ec_wNAF_precomputed_mult') remain the default if these
2194 methods are undefined.
2196 [Sheueling Chang Shantz and Douglas Stebila
2197 (Sun Microsystems Laboratories)]
2199 *) New function EC_GROUP_get_degree, which is defined through
2200 EC_METHOD. For curves over prime fields, this returns the bit
2201 length of the modulus.
2203 [Sheueling Chang Shantz and Douglas Stebila
2204 (Sun Microsystems Laboratories)]
2206 *) New functions EC_GROUP_dup, EC_POINT_dup.
2207 (These simply call ..._new and ..._copy).
2209 [Sheueling Chang Shantz and Douglas Stebila
2210 (Sun Microsystems Laboratories)]
2212 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2213 Polynomials are represented as BIGNUMs (where the sign bit is not
2214 used) in the following functions [macros]:
2217 BN_GF2m_sub [= BN_GF2m_add]
2218 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2219 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2220 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2222 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2223 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2224 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2225 BN_GF2m_cmp [= BN_ucmp]
2227 (Note that only the 'mod' functions are actually for fields GF(2^m).
2228 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2230 For some functions, an the irreducible polynomial defining a
2231 field can be given as an 'unsigned int[]' with strictly
2232 decreasing elements giving the indices of those bits that are set;
2233 i.e., p[] represents the polynomial
2234 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2236 p[0] > p[1] > ... > p[k] = 0.
2237 This applies to the following functions:
2242 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2243 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2245 BN_GF2m_mod_sqrt_arr
2246 BN_GF2m_mod_solve_quad_arr
2250 Conversion can be performed by the following functions:
2255 bntest.c has additional tests for binary polynomial arithmetic.
2257 Two implementations for BN_GF2m_mod_div() are available.
2258 The default algorithm simply uses BN_GF2m_mod_inv() and
2259 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2260 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2261 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2263 [Sheueling Chang Shantz and Douglas Stebila
2264 (Sun Microsystems Laboratories)]
2266 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2267 functionality is disabled at compile-time.
2268 [Douglas Stebila <douglas.stebila@sun.com>]
2270 *) Change default behaviour of 'openssl asn1parse' so that more
2271 information is visible when viewing, e.g., a certificate:
2273 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2274 mode the content of non-printable OCTET STRINGs is output in a
2275 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2276 avoid the appearance of a printable string.
2277 [Nils Larsch <nla@trustcenter.de>]
2279 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2281 EC_GROUP_set_asn1_flag()
2282 EC_GROUP_get_asn1_flag()
2283 EC_GROUP_set_point_conversion_form()
2284 EC_GROUP_get_point_conversion_form()
2285 These control ASN1 encoding details:
2286 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2287 has been set to OPENSSL_EC_NAMED_CURVE.
2288 - Points are encoded in uncompressed form by default; options for
2289 asn1_for are as for point2oct, namely
2290 POINT_CONVERSION_COMPRESSED
2291 POINT_CONVERSION_UNCOMPRESSED
2292 POINT_CONVERSION_HYBRID
2294 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2297 EC_GROUP_get0_seed()
2298 EC_GROUP_get_seed_len()
2299 This is used only for ASN1 purposes (so far).
2300 [Nils Larsch <nla@trustcenter.de>]
2302 *) Add 'field_type' member to EC_METHOD, which holds the NID
2303 of the appropriate field type OID. The new function
2304 EC_METHOD_get_field_type() returns this value.
2305 [Nils Larsch <nla@trustcenter.de>]
2310 EC_POINT_point2hex()
2311 EC_POINT_hex2point()
2312 providing useful interfaces to EC_POINT_point2oct() and
2313 EC_POINT_oct2point().
2314 [Nils Larsch <nla@trustcenter.de>]
2316 *) Change internals of the EC library so that the functions
2317 EC_GROUP_set_generator()
2318 EC_GROUP_get_generator()
2319 EC_GROUP_get_order()
2320 EC_GROUP_get_cofactor()
2321 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2322 to methods, which would lead to unnecessary code duplication when
2323 adding different types of curves.
2324 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2326 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2327 arithmetic, and such that modified wNAFs are generated
2328 (which avoid length expansion in many cases).
2331 *) Add a function EC_GROUP_check_discriminant() (defined via
2332 EC_METHOD) that verifies that the curve discriminant is non-zero.
2334 Add a function EC_GROUP_check() that makes some sanity tests
2335 on a EC_GROUP, its generator and order. This includes
2336 EC_GROUP_check_discriminant().
2337 [Nils Larsch <nla@trustcenter.de>]
2339 *) Add ECDSA in new directory crypto/ecdsa/.
2341 Add applications 'openssl ecparam' and 'openssl ecdsa'
2342 (these are based on 'openssl dsaparam' and 'openssl dsa').
2344 ECDSA support is also included in various other files across the
2345 library. Most notably,
2346 - 'openssl req' now has a '-newkey ecdsa:file' option;
2347 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2348 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2349 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2350 them suitable for ECDSA where domain parameters must be
2351 extracted before the specific public key;
2352 - ECDSA engine support has been added.
2353 [Nils Larsch <nla@trustcenter.de>]
2355 *) Include some named elliptic curves, and add OIDs from X9.62,
2356 SECG, and WAP/WTLS. Each curve can be obtained from the new
2358 EC_GROUP_new_by_curve_name(),
2359 and the list of available named curves can be obtained with
2360 EC_get_builtin_curves().
2361 Also add a 'curve_name' member to EC_GROUP objects, which can be
2363 EC_GROUP_set_curve_name()
2364 EC_GROUP_get_curve_name()
2365 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2367 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2368 was actually never needed) and in BN_mul(). The removal in BN_mul()
2369 required a small change in bn_mul_part_recursive() and the addition
2370 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2371 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2372 bn_sub_words() and bn_add_words() except they take arrays with
2376 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
2378 *) In the SSL/TLS server implementation, be strict about session ID
2379 context matching (which matters if an application uses a single
2380 external cache for different purposes). Previously,
2381 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2382 set. This did ensure strict client verification, but meant that,
2383 with applications using a single external cache for quite
2384 different requirements, clients could circumvent ciphersuite
2385 restrictions for a given session ID context by starting a session
2386 in a different context.
2389 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2391 *) Cleanse PEM buffers before freeing them since they may contain
2393 [Benjamin Bennett <ben@psc.edu>]
2395 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2396 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2397 authentication-only ciphersuites.
2400 *) Since AES128 and AES256 share a single mask bit in the logic of
2401 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2402 kludge to work properly if AES128 is available and AES256 isn't.
2405 *) Expand security boundary to match 1.1.1 module.
2408 *) Remove redundant features: hash file source, editing of test vectors
2409 modify fipsld to use external fips_premain.c signature.
2412 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2413 run algorithm test programs.
2416 *) Make algorithm test programs more tolerant of whitespace.
2419 *) Have SSL/TLS server implementation tolerate "mismatched" record
2420 protocol version while receiving ClientHello even if the
2421 ClientHello is fragmented. (The server can't insist on the
2422 particular protocol version it has chosen before the ServerHello
2423 message has informed the client about his choice.)
2426 *) Load error codes if they are not already present instead of using a
2427 static variable. This allows them to be cleanly unloaded and reloaded.
2430 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2432 *) Introduce limits to prevent malicious keys being able to
2433 cause a denial of service. (CVE-2006-2940)
2434 [Steve Henson, Bodo Moeller]
2436 *) Fix ASN.1 parsing of certain invalid structures that can result
2437 in a denial of service. (CVE-2006-2937) [Steve Henson]
2439 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2440 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2442 *) Fix SSL client code which could crash if connecting to a
2443 malicious SSLv2 server. (CVE-2006-4343)
2444 [Tavis Ormandy and Will Drewry, Google Security Team]
2446 *) Change ciphersuite string processing so that an explicit
2447 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2448 will no longer include "AES128-SHA"), and any other similar
2449 ciphersuite (same bitmap) from *other* protocol versions (so that
2450 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2451 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2452 changes from 0.9.8b and 0.9.8d.
2455 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2457 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2458 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2460 *) Change the Unix randomness entropy gathering to use poll() when
2461 possible instead of select(), since the latter has some
2462 undesirable limitations.
2463 [Darryl Miles via Richard Levitte and Bodo Moeller]
2465 *) Disable rogue ciphersuites:
2467 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2468 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2469 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2471 The latter two were purportedly from
2472 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2475 Also deactive the remaining ciphersuites from
2476 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2477 unofficial, and the ID has long expired.
2480 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2481 dual-core machines) and other potential thread-safety issues.
2484 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2486 *) Adapt fipsld and the build system to link against the validated FIPS
2487 module in FIPS mode.
2490 *) Fixes for VC++ 2005 build under Windows.
2493 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2494 from a Windows bash shell such as MSYS. It is autodetected from the
2495 "config" script when run from a VC++ environment. Modify standard VC++
2496 build to use fipscanister.o from the GNU make build.
2499 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2501 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2502 The value now differs depending on if you build for FIPS or not.
2503 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2504 safely run with a non-FIPSed libcrypto, as it may crash because of
2505 the difference induced by this change.
2508 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2510 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2511 (part of SSL_OP_ALL). This option used to disable the
2512 countermeasure against man-in-the-middle protocol-version
2513 rollback in the SSL 2.0 server implementation, which is a bad
2514 idea. (CVE-2005-2969)
2516 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2517 for Information Security, National Institute of Advanced Industrial
2518 Science and Technology [AIST], Japan)]
2520 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2521 mainly for FIPS compliance and not fully integrated at this stage.
2524 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2525 the exponentiation using a fixed-length exponent. (Otherwise,
2526 the information leaked through timing could expose the secret key
2527 after many signatures; cf. Bleichenbacher's attack on DSA with
2531 *) Make a new fixed-window mod_exp implementation the default for
2532 RSA, DSA, and DH private-key operations so that the sequence of
2533 squares and multiplies and the memory access pattern are
2534 independent of the particular secret key. This will mitigate
2535 cache-timing and potential related attacks.
2537 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2538 and this is automatically used by BN_mod_exp_mont() if the new flag
2539 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2540 will use this BN flag for private exponents unless the flag
2541 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2542 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2544 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2546 *) Change the client implementation for SSLv23_method() and
2547 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2548 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2549 (Previously, the SSL 2.0 backwards compatible Client Hello
2550 message format would be used even with SSL_OP_NO_SSLv2.)
2553 *) Add support for smime-type MIME parameter in S/MIME messages which some
2557 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2558 a threadsafe manner. Modify rsa code to use new function and add calls
2559 to dsa and dh code (which had race conditions before).
2562 *) Include the fixed error library code in the C error file definitions
2563 instead of fixing them up at runtime. This keeps the error code
2564 structures constant.
2567 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2569 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2572 *) Fixes for newer kerberos headers. NB: the casts are needed because
2573 the 'length' field is signed on one version and unsigned on another
2574 with no (?) obvious way to tell the difference, without these VC++
2575 complains. Also the "definition" of FAR (blank) is no longer included
2576 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2577 some needed definitions.
2580 *) Undo Cygwin change.
2583 *) Added support for proxy certificates according to RFC 3820.
2584 Because they may be a security thread to unaware applications,
2585 they must be explicitely allowed in run-time. See
2586 docs/HOWTO/proxy_certificates.txt for further information.
2589 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2591 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2592 server and client random values. Previously
2593 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2594 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2596 This change has negligible security impact because:
2598 1. Server and client random values still have 24 bytes of pseudo random
2601 2. Server and client random values are sent in the clear in the initial
2604 3. The master secret is derived using the premaster secret (48 bytes in
2605 size for static RSA ciphersuites) as well as client server and random
2608 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2611 [Stephen Henson, reported by UK NISCC]
2613 *) Use Windows randomness collection on Cygwin.
2616 *) Fix hang in EGD/PRNGD query when communication socket is closed
2617 prematurely by EGD/PRNGD.
2618 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2620 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2623 *) Back-port of selected performance improvements from development
2624 branch, as well as improved support for PowerPC platforms.
2627 *) Add lots of checks for memory allocation failure, error codes to indicate
2628 failure and freeing up memory if a failure occurs.
2629 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2631 *) Add new -passin argument to dgst.
2634 *) Perform some character comparisons of different types in X509_NAME_cmp:
2635 this is needed for some certificates that reencode DNs into UTF8Strings
2636 (in violation of RFC3280) and can't or wont issue name rollover
2640 *) Make an explicit check during certificate validation to see that
2641 the CA setting in each certificate on the chain is correct. As a
2642 side effect always do the following basic checks on extensions,
2643 not just when there's an associated purpose to the check:
2645 - if there is an unhandled critical extension (unless the user
2646 has chosen to ignore this fault)
2647 - if the path length has been exceeded (if one is set at all)
2648 - that certain extensions fit the associated purpose (if one has
2652 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2654 *) Avoid a race condition when CRLs are checked in a multi threaded
2655 environment. This would happen due to the reordering of the revoked
2656 entries during signature checking and serial number lookup. Now the
2657 encoding is cached and the serial number sort performed under a lock.
2658 Add new STACK function sk_is_sorted().
2661 *) Add Delta CRL to the extension code.
2664 *) Various fixes to s3_pkt.c so alerts are sent properly.
2665 [David Holmes <d.holmes@f5.com>]
2667 *) Reduce the chances of duplicate issuer name and serial numbers (in
2668 violation of RFC3280) using the OpenSSL certificate creation utilities.
2669 This is done by creating a random 64 bit value for the initial serial
2670 number when a serial number file is created or when a self signed
2671 certificate is created using 'openssl req -x509'. The initial serial
2672 number file is created using 'openssl x509 -next_serial' in CA.pl
2673 rather than being initialized to 1.
2676 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2678 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2679 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2680 [Joe Orton, Steve Henson]
2682 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2684 [Joe Orton, Steve Henson]
2686 *) Make it possible to have multiple active certificates with the same
2687 subject in the CA index file. This is done only if the keyword
2688 'unique_subject' is set to 'no' in the main CA section (default
2689 if 'CA_default') of the configuration file. The value is saved
2690 with the database itself in a separate index attribute file,
2691 named like the index file with '.attr' appended to the name.
2694 *) X509 verify fixes. Disable broken certificate workarounds when
2695 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2696 keyUsage extension present. Don't accept CRLs with unhandled critical
2697 extensions: since verify currently doesn't process CRL extensions this
2698 rejects a CRL with *any* critical extensions. Add new verify error codes
2702 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2703 A clarification of RFC2560 will require the use of OCTET STRINGs and
2704 some implementations cannot handle the current raw format. Since OpenSSL
2705 copies and compares OCSP nonces as opaque blobs without any attempt at
2706 parsing them this should not create any compatibility issues.
2709 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2710 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2711 this HMAC (and other) operations are several times slower than OpenSSL
2715 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2716 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2718 *) Use the correct content when signing type "other".
2721 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2723 *) Fix various bugs revealed by running the NISCC test suite:
2725 Stop out of bounds reads in the ASN1 code when presented with
2726 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2728 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2730 If verify callback ignores invalid public key errors don't try to check
2731 certificate signature with the NULL public key.
2735 *) New -ignore_err option in ocsp application to stop the server
2736 exiting on the first error in a request.
2739 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2740 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2744 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2745 extra data after the compression methods not only for TLS 1.0
2746 but also for SSL 3.0 (as required by the specification).
2747 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2749 *) Change X509_certificate_type() to mark the key as exported/exportable
2750 when it's 512 *bits* long, not 512 bytes.
2753 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2754 blocks during encryption.
2757 *) Various fixes to base64 BIO and non blocking I/O. On write
2758 flushes were not handled properly if the BIO retried. On read
2759 data was not being buffered properly and had various logic bugs.
2760 This also affects blocking I/O when the data being decoded is a
2764 *) Various S/MIME bugfixes and compatibility changes:
2765 output correct application/pkcs7 MIME type if
2766 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2767 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2768 of files as .eml work). Correctly handle very long lines in MIME
2772 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2774 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2775 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2776 a protocol version number mismatch like a decryption error
2777 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2780 *) Turn on RSA blinding by default in the default implementation
2781 to avoid a timing attack. Applications that don't want it can call
2782 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2783 They would be ill-advised to do so in most cases.
2784 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2786 *) Change RSA blinding code so that it works when the PRNG is not
2787 seeded (in this case, the secret RSA exponent is abused as
2788 an unpredictable seed -- if it is not unpredictable, there
2789 is no point in blinding anyway). Make RSA blinding thread-safe
2790 by remembering the creator's thread ID in rsa->blinding and
2791 having all other threads use local one-time blinding factors
2792 (this requires more computation than sharing rsa->blinding, but
2793 avoids excessive locking; and if an RSA object is not shared
2794 between threads, blinding will still be very fast).
2797 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2798 ENGINE as defaults for all supported algorithms irrespective of
2799 the 'flags' parameter. 'flags' is now honoured, so applications
2800 should make sure they are passing it correctly.
2803 *) Target "mingw" now allows native Windows code to be generated in
2804 the Cygwin environment as well as with the MinGW compiler.
2807 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2809 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2810 via timing by performing a MAC computation even if incorrrect
2811 block cipher padding has been found. This is a countermeasure
2812 against active attacks where the attacker has to distinguish
2813 between bad padding and a MAC verification error. (CVE-2003-0078)
2815 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2816 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2817 Martin Vuagnoux (EPFL, Ilion)]
2819 *) Make the no-err option work as intended. The intention with no-err
2820 is not to have the whole error stack handling routines removed from
2821 libcrypto, it's only intended to remove all the function name and
2822 reason texts, thereby removing some of the footprint that may not
2823 be interesting if those errors aren't displayed anyway.
2825 NOTE: it's still possible for any application or module to have it's
2826 own set of error texts inserted. The routines are there, just not
2827 used by default when no-err is given.
2830 *) Add support for FreeBSD on IA64.
2831 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2833 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2834 Kerberos function mit_des_cbc_cksum(). Before this change,
2835 the value returned by DES_cbc_cksum() was like the one from
2836 mit_des_cbc_cksum(), except the bytes were swapped.
2837 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2839 *) Allow an application to disable the automatic SSL chain building.
2840 Before this a rather primitive chain build was always performed in
2841 ssl3_output_cert_chain(): an application had no way to send the
2842 correct chain if the automatic operation produced an incorrect result.
2844 Now the chain builder is disabled if either:
2846 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2848 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2850 The reasoning behind this is that an application would not want the
2851 auto chain building to take place if extra chain certificates are
2852 present and it might also want a means of sending no additional
2853 certificates (for example the chain has two certificates and the
2857 *) Add the possibility to build without the ENGINE framework.
2858 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2860 *) Under Win32 gmtime() can return NULL: check return value in
2861 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2864 *) DSA routines: under certain error conditions uninitialized BN objects
2865 could be freed. Solution: make sure initialization is performed early
2866 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2867 Nils Larsch <nla@trustcenter.de> via PR#459)
2870 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2871 checked on reconnect on the client side, therefore session resumption
2872 could still fail with a "ssl session id is different" error. This
2873 behaviour is masked when SSL_OP_ALL is used due to
2874 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2875 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2876 followup to PR #377.
2879 *) IA-32 assembler support enhancements: unified ELF targets, support
2880 for SCO/Caldera platforms, fix for Cygwin shared build.
2883 *) Add support for FreeBSD on sparc64. As a consequence, support for
2884 FreeBSD on non-x86 processors is separate from x86 processors on
2885 the config script, much like the NetBSD support.
2886 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2888 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2890 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2893 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2894 code (06) was taken as the first octet of the session ID and the last
2895 octet was ignored consequently. As a result SSLv2 client side session
2896 caching could not have worked due to the session ID mismatch between
2898 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2902 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2903 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2907 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2908 seems that in spite of existing for more than a year, many application
2909 author have done nothing to provide the necessary callbacks, which
2910 means that this particular engine will not work properly anywhere.
2911 This is a very unfortunate situation which forces us, in the name
2912 of usability, to give the hw_ncipher.c a static lock, which is part
2914 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2915 appear in 0.9.8 or later. We EXPECT application authors to have
2916 dealt properly with this when 0.9.8 is released (unless we actually
2917 make such changes in the libcrypto locking code that changes will
2918 have to be made anyway).
2921 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2922 octets have been read, EOF or an error occurs. Without this change
2923 some truncated ASN1 structures will not produce an error.
2926 *) Disable Heimdal support, since it hasn't been fully implemented.
2927 Still give the possibility to force the use of Heimdal, but with
2928 warnings and a request that patches get sent to openssl-dev.
2931 *) Add the VC-CE target, introduce the WINCE sysname, and add
2932 INSTALL.WCE and appropriate conditionals to make it build.
2933 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2935 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2936 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2937 edit numbers of the version.
2938 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2940 *) Introduce safe string copy and catenation functions
2941 (BUF_strlcpy() and BUF_strlcat()).
2942 [Ben Laurie (CHATS) and Richard Levitte]
2944 *) Avoid using fixed-size buffers for one-line DNs.
2945 [Ben Laurie (CHATS)]
2947 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2948 resizing buffers containing secrets, and use where appropriate.
2949 [Ben Laurie (CHATS)]
2951 *) Avoid using fixed size buffers for configuration file location.
2952 [Ben Laurie (CHATS)]
2954 *) Avoid filename truncation for various CA files.
2955 [Ben Laurie (CHATS)]
2957 *) Use sizeof in preference to magic numbers.
2958 [Ben Laurie (CHATS)]
2960 *) Avoid filename truncation in cert requests.
2961 [Ben Laurie (CHATS)]
2963 *) Add assertions to check for (supposedly impossible) buffer
2965 [Ben Laurie (CHATS)]
2967 *) Don't cache truncated DNS entries in the local cache (this could
2968 potentially lead to a spoofing attack).
2969 [Ben Laurie (CHATS)]
2971 *) Fix various buffers to be large enough for hex/decimal
2972 representations in a platform independent manner.
2973 [Ben Laurie (CHATS)]
2975 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2976 resizing buffers containing secrets, and use where appropriate.
2977 [Ben Laurie (CHATS)]
2979 *) Add BIO_indent() to avoid much slightly worrying code to do
2981 [Ben Laurie (CHATS)]
2983 *) Convert sprintf()/BIO_puts() to BIO_printf().
2984 [Ben Laurie (CHATS)]
2986 *) buffer_gets() could terminate with the buffer only half
2988 [Ben Laurie (CHATS)]
2990 *) Add assertions to prevent user-supplied crypto functions from
2991 overflowing internal buffers by having large block sizes, etc.
2992 [Ben Laurie (CHATS)]
2994 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2996 [Ben Laurie (CHATS)]
2998 *) Eliminate unused copy of key in RC4.
2999 [Ben Laurie (CHATS)]
3001 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3002 [Ben Laurie (CHATS)]
3004 *) Fix off-by-one error in EGD path.
3005 [Ben Laurie (CHATS)]
3007 *) If RANDFILE path is too long, ignore instead of truncating.
3008 [Ben Laurie (CHATS)]
3010 *) Eliminate unused and incorrectly sized X.509 structure
3012 [Ben Laurie (CHATS)]
3014 *) Eliminate unused and dangerous function knumber().
3015 [Ben Laurie (CHATS)]
3017 *) Eliminate unused and dangerous structure, KSSL_ERR.
3018 [Ben Laurie (CHATS)]
3020 *) Protect against overlong session ID context length in an encoded
3021 session object. Since these are local, this does not appear to be
3023 [Ben Laurie (CHATS)]
3025 *) Change from security patch (see 0.9.6e below) that did not affect
3026 the 0.9.6 release series:
3028 Remote buffer overflow in SSL3 protocol - an attacker could
3029 supply an oversized master key in Kerberos-enabled versions.
3031 [Ben Laurie (CHATS)]
3033 *) Change the SSL kerb5 codes to match RFC 2712.
3036 *) Make -nameopt work fully for req and add -reqopt switch.
3037 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3039 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3040 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3042 *) Make sure tests can be performed even if the corresponding algorithms
3043 have been removed entirely. This was also the last step to make
3044 OpenSSL compilable with DJGPP under all reasonable conditions.
3045 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3047 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3048 to allow version independent disabling of normally unselected ciphers,
3049 which may be activated as a side-effect of selecting a single cipher.
3051 (E.g., cipher list string "RSA" enables ciphersuites that are left
3052 out of "ALL" because they do not provide symmetric encryption.
3053 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3054 [Lutz Jaenicke, Bodo Moeller]
3056 *) Add appropriate support for separate platform-dependent build
3057 directories. The recommended way to make a platform-dependent
3058 build directory is the following (tested on Linux), maybe with
3061 # Place yourself outside of the OpenSSL source tree. In
3062 # this example, the environment variable OPENSSL_SOURCE
3063 # is assumed to contain the absolute OpenSSL source directory.
3064 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3065 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3066 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3067 mkdir -p `dirname $F`
3068 ln -s $OPENSSL_SOURCE/$F $F
3071 To be absolutely sure not to disturb the source tree, a "make clean"
3072 is a good thing. If it isn't successfull, don't worry about it,
3073 it probably means the source directory is very clean.
3076 *) Make sure any ENGINE control commands make local copies of string
3077 pointers passed to them whenever necessary. Otherwise it is possible
3078 the caller may have overwritten (or deallocated) the original string
3079 data when a later ENGINE operation tries to use the stored values.
3080 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3082 *) Improve diagnostics in file reading and command-line digests.
3083 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3085 *) Add AES modes CFB and OFB to the object database. Correct an
3086 error in AES-CFB decryption.
3089 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3090 allows existing EVP_CIPHER_CTX structures to be reused after
3091 calling EVP_*Final(). This behaviour is used by encryption
3092 BIOs and some applications. This has the side effect that
3093 applications must explicitly clean up cipher contexts with
3094 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3097 *) Check the values of dna and dnb in bn_mul_recursive before calling
3098 bn_mul_comba (a non zero value means the a or b arrays do not contain
3099 n2 elements) and fallback to bn_mul_normal if either is not zero.
3102 *) Fix escaping of non-ASCII characters when using the -subj option
3103 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3106 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3107 form for "surname", serialNumber has no short form.
3108 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3109 therefore remove "mail" short name for "internet 7".
3110 The OID for unique identifiers in X509 certificates is
3111 x500UniqueIdentifier, not uniqueIdentifier.
3112 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3115 *) Add an "init" command to the ENGINE config module and auto initialize
3116 ENGINEs. Without any "init" command the ENGINE will be initialized
3117 after all ctrl commands have been executed on it. If init=1 the
3118 ENGINE is initailized at that point (ctrls before that point are run
3119 on the uninitialized ENGINE and after on the initialized one). If
3120 init=0 then the ENGINE will not be iniatialized at all.
3123 *) Fix the 'app_verify_callback' interface so that the user-defined
3124 argument is actually passed to the callback: In the
3125 SSL_CTX_set_cert_verify_callback() prototype, the callback
3126 declaration has been changed from
3129 int (*cb)(X509_STORE_CTX *,void *);
3130 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3131 i=s->ctx->app_verify_callback(&ctx)
3132 has been changed into
3133 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3135 To update applications using SSL_CTX_set_cert_verify_callback(),
3136 a dummy argument can be added to their callback functions.
3137 [D. K. Smetters <smetters@parc.xerox.com>]
3139 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3140 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3142 *) Add and OPENSSL_LOAD_CONF define which will cause
3143 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3144 This allows older applications to transparently support certain
3145 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3146 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3147 load the config file and OPENSSL_add_all_algorithms_conf() which will
3148 always load it have also been added.
3151 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3152 Adjust NIDs and EVP layer.
3153 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3155 *) Config modules support in openssl utility.
3157 Most commands now load modules from the config file,
3158 though in a few (such as version) this isn't done
3159 because it couldn't be used for anything.
3161 In the case of ca and req the config file used is
3162 the same as the utility itself: that is the -config
3163 command line option can be used to specify an
3167 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3168 use "openssl_conf" if filename is NULL use default openssl config file.
3171 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3172 config section name. Add a new flag to tolerate a missing config file
3173 and move code to CONF_modules_load_file().
3176 *) Support for crypto accelerator cards from Accelerated Encryption
3177 Processing, www.aep.ie. (Use engine 'aep')
3178 The support was copied from 0.9.6c [engine] and adapted/corrected
3179 to work with the new engine framework.
3180 [AEP Inc. and Richard Levitte]
3182 *) Support for SureWare crypto accelerator cards from Baltimore
3183 Technologies. (Use engine 'sureware')
3184 The support was copied from 0.9.6c [engine] and adapted
3185 to work with the new engine framework.
3188 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3189 make the newer ENGINE framework commands for the CHIL engine work.
3190 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3192 *) Make it possible to produce shared libraries on ReliantUNIX.
3193 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3195 *) Add the configuration target debug-linux-ppro.
3196 Make 'openssl rsa' use the general key loading routines
3197 implemented in apps.c, and make those routines able to
3198 handle the key format FORMAT_NETSCAPE and the variant
3200 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3202 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3203 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3205 *) Add -keyform to rsautl, and document -engine.
3206 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3208 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3209 BIO_R_NO_SUCH_FILE error code rather than the generic
3210 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3213 *) Add new functions
3215 ERR_peek_last_error_line
3216 ERR_peek_last_error_line_data.
3217 These are similar to
3220 ERR_peek_error_line_data,
3221 but report on the latest error recorded rather than the first one
3222 still in the error queue.
3223 [Ben Laurie, Bodo Moeller]
3225 *) default_algorithms option in ENGINE config module. This allows things
3227 default_algorithms = ALL
3228 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3231 *) Prelminary ENGINE config module.
3234 *) New experimental application configuration code.
3237 *) Change the AES code to follow the same name structure as all other
3238 symmetric ciphers, and behave the same way. Move everything to
3239 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3240 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3242 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3243 [Ben Laurie and Theo de Raadt]
3245 *) Add option to output public keys in req command.
3246 [Massimiliano Pala madwolf@openca.org]
3248 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3249 (up to about 10% better than before for P-192 and P-224).
3252 *) New functions/macros
3254 SSL_CTX_set_msg_callback(ctx, cb)
3255 SSL_CTX_set_msg_callback_arg(ctx, arg)
3256 SSL_set_msg_callback(ssl, cb)
3257 SSL_set_msg_callback_arg(ssl, arg)
3259 to request calling a callback function
3261 void cb(int write_p, int version, int content_type,
3262 const void *buf, size_t len, SSL *ssl, void *arg)
3264 whenever a protocol message has been completely received
3265 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3266 protocol version according to which the SSL library interprets
3267 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3268 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3269 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3270 specification (change_cipher_spec(20), alert(21), handshake(22)).
3271 'buf' and 'len' point to the actual message, 'ssl' to the
3272 SSL object, and 'arg' is the application-defined value set by
3273 SSL[_CTX]_set_msg_callback_arg().
3275 'openssl s_client' and 'openssl s_server' have new '-msg' options
3276 to enable a callback that displays all protocol messages.
3279 *) Change the shared library support so shared libraries are built as
3280 soon as the corresponding static library is finished, and thereby get
3281 openssl and the test programs linked against the shared library.
3282 This still only happens when the keyword "shard" has been given to
3283 the configuration scripts.
3285 NOTE: shared library support is still an experimental thing, and
3286 backward binary compatibility is still not guaranteed.
3287 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3289 *) Add support for Subject Information Access extension.
3290 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3292 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3293 additional bytes when new memory had to be allocated, not just
3294 when reusing an existing buffer.
3297 *) New command line and configuration option 'utf8' for the req command.
3298 This allows field values to be specified as UTF8 strings.
3301 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3302 runs for the former and machine-readable output for the latter.
3305 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3306 of the e-mail address in the DN (i.e., it will go into a certificate
3307 extension only). The new configuration file option 'email_in_dn = no'
3308 has the same effect.
3309 [Massimiliano Pala madwolf@openca.org]
3311 *) Change all functions with names starting with des_ to be starting
3312 with DES_ instead. Add wrappers that are compatible with libdes,
3313 but are named _ossl_old_des_*. Finally, add macros that map the
3314 des_* symbols to the corresponding _ossl_old_des_* if libdes
3315 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3316 desired, the des_* symbols will be mapped to DES_*, with one
3319 Since we provide two compatibility mappings, the user needs to
3320 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3321 compatibility is desired. The default (i.e., when that macro
3322 isn't defined) is OpenSSL 0.9.6c compatibility.
3324 There are also macros that enable and disable the support of old
3325 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3326 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3327 are defined, the default will apply: to support the old des routines.
3329 In either case, one must include openssl/des.h to get the correct
3330 definitions. Do not try to just include openssl/des_old.h, that
3333 NOTE: This is a major break of an old API into a new one. Software
3334 authors are encouraged to switch to the DES_ style functions. Some
3335 time in the future, des_old.h and the libdes compatibility functions
3336 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3337 default), and then completely removed.
3340 *) Test for certificates which contain unsupported critical extensions.
3341 If such a certificate is found during a verify operation it is
3342 rejected by default: this behaviour can be overridden by either
3343 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3344 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3345 X509_supported_extension() has also been added which returns 1 if a
3346 particular extension is supported.
3349 *) Modify the behaviour of EVP cipher functions in similar way to digests
3350 to retain compatibility with existing code.
3353 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3354 compatibility with existing code. In particular the 'ctx' parameter does
3355 not have to be to be initialized before the call to EVP_DigestInit() and
3356 it is tidied up after a call to EVP_DigestFinal(). New function
3357 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3358 EVP_MD_CTX_copy() changed to not require the destination to be
3359 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3360 requires the destination to be valid.
3362 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3363 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3366 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3367 so that complete 'Handshake' protocol structures are kept in memory
3368 instead of overwriting 'msg_type' and 'length' with 'body' data.
3371 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3372 [Massimo Santin via Richard Levitte]
3374 *) Major restructuring to the underlying ENGINE code. This includes
3375 reduction of linker bloat, separation of pure "ENGINE" manipulation
3376 (initialisation, etc) from functionality dealing with implementations
3377 of specific crypto iterfaces. This change also introduces integrated
3378 support for symmetric ciphers and digest implementations - so ENGINEs
3379 can now accelerate these by providing EVP_CIPHER and EVP_MD
3380 implementations of their own. This is detailed in crypto/engine/README
3381 as it couldn't be adequately described here. However, there are a few
3382 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3383 were changed in the original introduction of ENGINE code have now
3384 reverted back - the hooking from this code to ENGINE is now a good
3385 deal more passive and at run-time, operations deal directly with
3386 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3387 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3388 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3389 they were not being used by the framework as there is no concept of a
3390 BIGNUM_METHOD and they could not be generalised to the new
3391 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3392 ENGINE_cpy() has been removed as it cannot be consistently defined in
3396 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3399 *) Change mkdef.pl to sort symbols that get the same entry number,
3400 and make sure the automatically generated functions ERR_load_*
3401 become part of libeay.num as well.
3404 *) New function SSL_renegotiate_pending(). This returns true once
3405 renegotiation has been requested (either SSL_renegotiate() call
3406 or HelloRequest/ClientHello receveived from the peer) and becomes
3407 false once a handshake has been completed.
3408 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3409 sends a HelloRequest, but does not ensure that a handshake takes
3410 place. SSL_renegotiate_pending() is useful for checking if the
3411 client has followed the request.)
3414 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3415 By default, clients may request session resumption even during
3416 renegotiation (if session ID contexts permit); with this option,
3417 session resumption is possible only in the first handshake.
3419 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3420 more bits available for options that should not be part of
3421 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3424 *) Add some demos for certificate and certificate request creation.
3427 *) Make maximum certificate chain size accepted from the peer application
3428 settable (SSL*_get/set_max_cert_list()), as proposed by
3429 "Douglas E. Engert" <deengert@anl.gov>.
3432 *) Add support for shared libraries for Unixware-7
3433 (Boyd Lynn Gerber <gerberb@zenez.com>).
3436 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3437 be done prior to destruction. Use this to unload error strings from
3438 ENGINEs that load their own error strings. NB: This adds two new API
3439 functions to "get" and "set" this destroy handler in an ENGINE.
3442 *) Alter all existing ENGINE implementations (except "openssl" and
3443 "openbsd") to dynamically instantiate their own error strings. This
3444 makes them more flexible to be built both as statically-linked ENGINEs
3445 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3446 Also, add stub code to each that makes building them as self-contained
3447 shared-libraries easier (see README.ENGINE).
3450 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3451 implementations into applications that are completely implemented in
3452 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3453 commands that can be used to configure what shared-library to load and
3454 to control aspects of the way it is handled. Also, made an update to
3455 the README.ENGINE file that brings its information up-to-date and
3456 provides some information and instructions on the "dynamic" ENGINE
3457 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3460 *) Make it possible to unload ranges of ERR strings with a new
3461 "ERR_unload_strings" function.
3464 *) Add a copy() function to EVP_MD.
3467 *) Make EVP_MD routines take a context pointer instead of just the
3468 md_data void pointer.
3471 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3472 that the digest can only process a single chunk of data
3473 (typically because it is provided by a piece of
3474 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3475 is only going to provide a single chunk of data, and hence the
3476 framework needn't accumulate the data for oneshot drivers.
3479 *) As with "ERR", make it possible to replace the underlying "ex_data"
3480 functions. This change also alters the storage and management of global
3481 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3482 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3483 index counters. The API functions that use this state have been changed
3484 to take a "class_index" rather than pointers to the class's local STACK
3485 and counter, and there is now an API function to dynamically create new
3486 classes. This centralisation allows us to (a) plug a lot of the
3487 thread-safety problems that existed, and (b) makes it possible to clean
3488 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3489 such data would previously have always leaked in application code and
3490 workarounds were in place to make the memory debugging turn a blind eye
3491 to it. Application code that doesn't use this new function will still
3492 leak as before, but their memory debugging output will announce it now
3493 rather than letting it slide.
3495 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3496 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3497 has a return value to indicate success or failure.
3500 *) Make it possible to replace the underlying "ERR" functions such that the
3501 global state (2 LHASH tables and 2 locks) is only used by the "default"
3502 implementation. This change also adds two functions to "get" and "set"
3503 the implementation prior to it being automatically set the first time
3504 any other ERR function takes place. Ie. an application can call "get",
3505 pass the return value to a module it has just loaded, and that module
3506 can call its own "set" function using that value. This means the
3507 module's "ERR" operations will use (and modify) the error state in the
3508 application and not in its own statically linked copy of OpenSSL code.
3511 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3512 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3513 the operation, and provides a more encapsulated way for external code
3514 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3515 to use these functions rather than manually incrementing the counts.
3517 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3520 *) Add EVP test program.
3523 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3526 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3527 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3528 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3529 These allow a CRL to be built without having to access X509_CRL fields
3530 directly. Modify 'ca' application to use new functions.
3533 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3534 bug workarounds. Rollback attack detection is a security feature.
3535 The problem will only arise on OpenSSL servers when TLSv1 is not
3536 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3537 Software authors not wanting to support TLSv1 will have special reasons
3538 for their choice and can explicitly enable this option.
3539 [Bodo Moeller, Lutz Jaenicke]
3541 *) Rationalise EVP so it can be extended: don't include a union of
3542 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3543 (similar to those existing for EVP_CIPHER_CTX).
3548 EVP_MD_CTX_init(&md); /* new function call */
3549 EVP_DigestInit(&md, EVP_sha1());
3550 EVP_DigestUpdate(&md, in, len);
3551 EVP_DigestFinal(&md, out, NULL);
3552 EVP_MD_CTX_cleanup(&md); /* new function call */
3556 *) Make DES key schedule conform to the usual scheme, as well as
3557 correcting its structure. This means that calls to DES functions
3558 now have to pass a pointer to a des_key_schedule instead of a
3559 plain des_key_schedule (which was actually always a pointer
3562 des_key_schedule ks;
3564 des_set_key_checked(..., &ks);
3565 des_ncbc_encrypt(..., &ks, ...);
3567 (Note that a later change renames 'des_...' into 'DES_...'.)
3570 *) Initial reduction of linker bloat: the use of some functions, such as
3571 PEM causes large amounts of unused functions to be linked in due to
3572 poor organisation. For example pem_all.c contains every PEM function
3573 which has a knock on effect of linking in large amounts of (unused)
3574 ASN1 code. Grouping together similar functions and splitting unrelated
3575 functions prevents this.
3578 *) Cleanup of EVP macros.
3581 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3582 correct _ecb suffix.
3585 *) Add initial OCSP responder support to ocsp application. The
3586 revocation information is handled using the text based index
3587 use by the ca application. The responder can either handle
3588 requests generated internally, supplied in files (for example
3589 via a CGI script) or using an internal minimal server.
3592 *) Add configuration choices to get zlib compression for TLS.
3595 *) Changes to Kerberos SSL for RFC 2712 compliance:
3596 1. Implemented real KerberosWrapper, instead of just using
3597 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3598 2. Implemented optional authenticator field of KerberosWrapper.
3600 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3601 and authenticator structs; see crypto/krb5/.
3603 Generalized Kerberos calls to support multiple Kerberos libraries.
3604 [Vern Staats <staatsvr@asc.hpc.mil>,
3605 Jeffrey Altman <jaltman@columbia.edu>
3606 via Richard Levitte]
3608 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3609 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3610 values for each of the key sizes rather than having just
3611 parameters (and 'speed' generating keys each time).
3614 *) Speed up EVP routines.
3617 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3618 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3619 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3620 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3622 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3623 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3624 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3627 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3629 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3632 *) Added the OS2-EMX target.
3633 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3635 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3636 to support NCONF routines in extension code. New function CONF_set_nconf()
3637 to allow functions which take an NCONF to also handle the old LHASH
3638 structure: this means that the old CONF compatible routines can be
3639 retained (in particular wrt extensions) without having to duplicate the
3640 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3643 *) Enhance the general user interface with mechanisms for inner control
3644 and with possibilities to have yes/no kind of prompts.
3647 *) Change all calls to low level digest routines in the library and
3648 applications to use EVP. Add missing calls to HMAC_cleanup() and
3649 don't assume HMAC_CTX can be copied using memcpy().
3650 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3652 *) Add the possibility to control engines through control names but with
3653 arbitrary arguments instead of just a string.
3654 Change the key loaders to take a UI_METHOD instead of a callback
3655 function pointer. NOTE: this breaks binary compatibility with earlier
3656 versions of OpenSSL [engine].
3657 Adapt the nCipher code for these new conditions and add a card insertion
3661 *) Enhance the general user interface with mechanisms to better support
3662 dialog box interfaces, application-defined prompts, the possibility
3663 to use defaults (for example default passwords from somewhere else)
3664 and interrupts/cancellations.
3667 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3668 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3671 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3672 tidy up some unnecessarily weird code in 'sk_new()').
3673 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3675 *) Change the key loading routines for ENGINEs to use the same kind
3676 callback (pem_password_cb) as all other routines that need this
3680 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3681 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3682 than this minimum value is recommended.
3685 *) New random seeder for OpenVMS, using the system process statistics
3686 that are easily reachable.
3689 *) Windows apparently can't transparently handle global
3690 variables defined in DLLs. Initialisations such as:
3692 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3694 wont compile. This is used by the any applications that need to
3695 declare their own ASN1 modules. This was fixed by adding the option
3696 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3697 needed for static libraries under Win32.
3700 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3701 setting of purpose and trust fields. New X509_STORE trust and
3702 purpose functions and tidy up setting in other SSL functions.
3705 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3706 structure. These are inherited by X509_STORE_CTX when it is
3707 initialised. This allows various defaults to be set in the
3708 X509_STORE structure (such as flags for CRL checking and custom
3709 purpose or trust settings) for functions which only use X509_STORE_CTX
3710 internally such as S/MIME.
3712 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3713 trust settings if they are not set in X509_STORE. This allows X509_STORE
3714 purposes and trust (in S/MIME for example) to override any set by default.
3716 Add command line options for CRL checking to smime, s_client and s_server
3720 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3721 are set then the CRL is looked up in the X509_STORE structure and
3722 its validity and signature checked, then if the certificate is found
3723 in the CRL the verify fails with a revoked error.
3725 Various new CRL related callbacks added to X509_STORE_CTX structure.
3727 Command line options added to 'verify' application to support this.
3729 This needs some additional work, such as being able to handle multiple
3730 CRLs with different times, extension based lookup (rather than just
3731 by subject name) and ultimately more complete V2 CRL extension
3735 *) Add a general user interface API (crypto/ui/). This is designed
3736 to replace things like des_read_password and friends (backward
3737 compatibility functions using this new API are provided).
3738 The purpose is to remove prompting functions from the DES code
3739 section as well as provide for prompting through dialog boxes in
3740 a window system and the like.
3743 *) Add "ex_data" support to ENGINE so implementations can add state at a
3744 per-structure level rather than having to store it globally.
3747 *) Make it possible for ENGINE structures to be copied when retrieved by
3748 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3749 This causes the "original" ENGINE structure to act like a template,
3750 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3751 operational state can be localised to each ENGINE structure, despite the
3752 fact they all share the same "methods". New ENGINE structures returned in
3753 this case have no functional references and the return value is the single
3754 structural reference. This matches the single structural reference returned
3755 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3759 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3760 needs to match any other type at all we need to manually clear the
3764 *) Changes to the "openssl engine" utility to include;
3765 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3766 about an ENGINE's available control commands.
3767 - executing control commands from command line arguments using the
3768 '-pre' and '-post' switches. '-post' is only used if '-t' is
3769 specified and the ENGINE is successfully initialised. The syntax for
3770 the individual commands are colon-separated, for example;
3771 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3774 *) New dynamic control command support for ENGINEs. ENGINEs can now
3775 declare their own commands (numbers), names (strings), descriptions,
3776 and input types for run-time discovery by calling applications. A
3777 subset of these commands are implicitly classed as "executable"
3778 depending on their input type, and only these can be invoked through
3779 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3780 can be based on user input, config files, etc). The distinction is
3781 that "executable" commands cannot return anything other than a boolean
3782 result and can only support numeric or string input, whereas some
3783 discoverable commands may only be for direct use through
3784 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3785 pointers, or other custom uses. The "executable" commands are to
3786 support parameterisations of ENGINE behaviour that can be
3787 unambiguously defined by ENGINEs and used consistently across any
3788 OpenSSL-based application. Commands have been added to all the
3789 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3790 control over shared-library paths without source code alterations.
3793 *) Changed all ENGINE implementations to dynamically allocate their
3794 ENGINEs rather than declaring them statically. Apart from this being
3795 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3796 this also allows the implementations to compile without using the
3797 internal engine_int.h header.
3800 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3801 'const' value. Any code that should be able to modify a RAND_METHOD
3802 should already have non-const pointers to it (ie. they should only
3803 modify their own ones).
3806 *) Made a variety of little tweaks to the ENGINE code.
3807 - "atalla" and "ubsec" string definitions were moved from header files
3808 to C code. "nuron" string definitions were placed in variables
3809 rather than hard-coded - allowing parameterisation of these values
3810 later on via ctrl() commands.
3811 - Removed unused "#if 0"'d code.
3812 - Fixed engine list iteration code so it uses ENGINE_free() to release
3813 structural references.
3814 - Constified the RAND_METHOD element of ENGINE structures.
3815 - Constified various get/set functions as appropriate and added
3816 missing functions (including a catch-all ENGINE_cpy that duplicates
3817 all ENGINE values onto a new ENGINE except reference counts/state).
3818 - Removed NULL parameter checks in get/set functions. Setting a method
3819 or function to NULL is a way of cancelling out a previously set
3820 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3821 and doesn't justify the extra error symbols and code.
3822 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3823 flags from engine_int.h to engine.h.
3824 - Changed prototypes for ENGINE handler functions (init(), finish(),
3825 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3828 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3829 to the algorithm using long division. The binary algorithm can be
3830 used only if the modulus is odd. On 32-bit systems, it is faster
3831 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3832 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3833 up to 450 bits. In 64-bit environments, the binary algorithm
3834 appears to be advantageous for much longer moduli; here we use it
3835 for moduli up to 2048 bits.
3838 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3839 could not support the combine flag in choice fields.
3842 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3843 extensions from a certificate request to the certificate.
3846 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3847 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3848 file: this allows the display of the certificate about to be
3849 signed to be customised, to allow certain fields to be included
3850 or excluded and extension details. The old system didn't display
3851 multicharacter strings properly, omitted fields not in the policy
3852 and couldn't display additional details such as extensions.
3855 *) Function EC_POINTs_mul for multiple scalar multiplication
3856 of an arbitrary number of elliptic curve points
3857 \sum scalars[i]*points[i],
3858 optionally including the generator defined for the EC_GROUP:
3859 scalar*generator + \sum scalars[i]*points[i].
3861 EC_POINT_mul is a simple wrapper function for the typical case
3862 that the point list has just one item (besides the optional
3866 *) First EC_METHODs for curves over GF(p):
3868 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3869 operations and provides various method functions that can also
3870 operate with faster implementations of modular arithmetic.
3872 EC_GFp_mont_method() reuses most functions that are part of
3873 EC_GFp_simple_method, but uses Montgomery arithmetic.
3875 [Bodo Moeller; point addition and point doubling
3876 implementation directly derived from source code provided by
3877 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3879 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3880 crypto/ec/ec_lib.c):
3882 Curves are EC_GROUP objects (with an optional group generator)
3883 based on EC_METHODs that are built into the library.
3885 Points are EC_POINT objects based on EC_GROUP objects.
3887 Most of the framework would be able to handle curves over arbitrary
3888 finite fields, but as there are no obvious types for fields other
3889 than GF(p), some functions are limited to that for now.
3892 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3893 that the file contains a complete HTTP response.
3896 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3897 change the def and num file printf format specifier from "%-40sXXX"
3898 to "%-39s XXX". The latter will always guarantee a space after the
3899 field while the former will cause them to run together if the field
3900 is 40 of more characters long.
3903 *) Constify the cipher and digest 'method' functions and structures
3904 and modify related functions to take constant EVP_MD and EVP_CIPHER
3908 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3909 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3912 *) Modify EVP_Digest*() routines so they now return values. Although the
3913 internal software routines can never fail additional hardware versions
3917 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3919 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3920 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3923 ERR_R_NESTED_ASN1_ERROR
3925 ERR_R_MISSING_ASN1_EOS
3926 were 4 .. 9, conflicting with
3927 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3929 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3930 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3932 Add new error code 'ERR_R_INTERNAL_ERROR'.
3935 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3939 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3940 sets the subject name for a new request or supersedes the
3941 subject name in a given request. Formats that can be parsed are
3942 'CN=Some Name, OU=myOU, C=IT'
3944 'CN=Some Name/OU=myOU/C=IT'.
3946 Add options '-batch' and '-verbose' to 'openssl req'.
3947 [Massimiliano Pala <madwolf@hackmasters.net>]
3949 *) Introduce the possibility to access global variables through
3950 functions on platform were that's the best way to handle exporting
3951 global variables in shared libraries. To enable this functionality,
3952 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3953 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3954 is normally done by Configure or something similar).
3956 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3957 in the source file (foo.c) like this:
3959 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3960 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3962 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3963 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3965 OPENSSL_DECLARE_GLOBAL(int,foo);
3966 #define foo OPENSSL_GLOBAL_REF(foo)
3967 OPENSSL_DECLARE_GLOBAL(double,bar);
3968 #define bar OPENSSL_GLOBAL_REF(bar)
3970 The #defines are very important, and therefore so is including the
3971 header file everywhere where the defined globals are used.
3973 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3974 of ASN.1 items, but that structure is a bit different.
3976 The largest change is in util/mkdef.pl which has been enhanced with
3977 better and easier to understand logic to choose which symbols should
3978 go into the Windows .def files as well as a number of fixes and code
3979 cleanup (among others, algorithm keywords are now sorted
3980 lexicographically to avoid constant rewrites).
3983 *) In BN_div() keep a copy of the sign of 'num' before writing the
3984 result to 'rm' because if rm==num the value will be overwritten
3985 and produce the wrong result if 'num' is negative: this caused
3986 problems with BN_mod() and BN_nnmod().
3989 *) Function OCSP_request_verify(). This checks the signature on an
3990 OCSP request and verifies the signer certificate. The signer
3991 certificate is just checked for a generic purpose and OCSP request
3995 *) Add OCSP_check_validity() function to check the validity of OCSP
3996 responses. OCSP responses are prepared in real time and may only
3997 be a few seconds old. Simply checking that the current time lies
3998 between thisUpdate and nextUpdate max reject otherwise valid responses
3999 caused by either OCSP responder or client clock inaccuracy. Instead
4000 we allow thisUpdate and nextUpdate to fall within a certain period of
4001 the current time. The age of the response can also optionally be
4002 checked. Two new options -validity_period and -status_age added to
4006 *) If signature or public key algorithm is unrecognized print out its
4007 OID rather that just UNKNOWN.
4010 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4011 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4012 ID to be generated from the issuer certificate alone which can then be
4013 passed to OCSP_id_issuer_cmp().
4016 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4017 ASN1 modules to export functions returning ASN1_ITEM pointers
4018 instead of the ASN1_ITEM structures themselves. This adds several
4019 new macros which allow the underlying ASN1 function/structure to
4020 be accessed transparently. As a result code should not use ASN1_ITEM
4021 references directly (such as &X509_it) but instead use the relevant
4022 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4023 use of the new ASN1 code on platforms where exporting structures
4024 is problematical (for example in shared libraries) but exporting
4025 functions returning pointers to structures is not.
4028 *) Add support for overriding the generation of SSL/TLS session IDs.
4029 These callbacks can be registered either in an SSL_CTX or per SSL.
4030 The purpose of this is to allow applications to control, if they wish,
4031 the arbitrary values chosen for use as session IDs, particularly as it
4032 can be useful for session caching in multiple-server environments. A
4033 command-line switch for testing this (and any client code that wishes
4034 to use such a feature) has been added to "s_server".
4035 [Geoff Thorpe, Lutz Jaenicke]
4037 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4038 of the form '#if defined(...) || defined(...) || ...' and
4039 '#if !defined(...) && !defined(...) && ...'. This also avoids
4040 the growing number of special cases it was previously handling.
4043 *) Make all configuration macros available for application by making
4044 sure they are available in opensslconf.h, by giving them names starting
4045 with "OPENSSL_" to avoid conflicts with other packages and by making
4046 sure e_os2.h will cover all platform-specific cases together with
4048 Additionally, it is now possible to define configuration/platform-
4049 specific names (called "system identities"). In the C code, these
4050 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4051 macro with the name beginning with "OPENSSL_SYS_", which is determined
4052 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4056 *) New option -set_serial to 'req' and 'x509' this allows the serial
4057 number to use to be specified on the command line. Previously self
4058 signed certificates were hard coded with serial number 0 and the
4059 CA options of 'x509' had to use a serial number in a file which was
4063 *) New options to 'ca' utility to support V2 CRL entry extensions.
4064 Currently CRL reason, invalidity date and hold instruction are
4065 supported. Add new CRL extensions to V3 code and some new objects.
4068 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4069 disable standard block padding (aka PKCS#5 padding) in the EVP
4070 API, which was previously mandatory. This means that the data is
4071 not padded in any way and so the total length much be a multiple
4072 of the block size, otherwise an error occurs.
4075 *) Initial (incomplete) OCSP SSL support.
4078 *) New function OCSP_parse_url(). This splits up a URL into its host,
4079 port and path components: primarily to parse OCSP URLs. New -url
4080 option to ocsp utility.
4083 *) New nonce behavior. The return value of OCSP_check_nonce() now
4084 reflects the various checks performed. Applications can decide
4085 whether to tolerate certain situations such as an absent nonce
4086 in a response when one was present in a request: the ocsp application
4087 just prints out a warning. New function OCSP_add1_basic_nonce()
4088 this is to allow responders to include a nonce in a response even if
4089 the request is nonce-less.
4092 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4093 skipped when using openssl x509 multiple times on a single input file,
4094 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4097 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4098 set string type: to handle setting ASN1_TIME structures. Fix ca
4099 utility to correctly initialize revocation date of CRLs.
4102 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4103 the clients preferred ciphersuites and rather use its own preferences.
4104 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4105 Internet Explorer by ensuring unchanged hash method during stepup.
4106 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4109 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4110 to aes and add a new 'exist' option to print out symbols that don't
4114 *) Additional options to ocsp utility to allow flags to be set and
4115 additional certificates supplied.
4118 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4119 OCSP client a number of certificate to only verify the response
4123 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4124 handle the new API. Currently only ECB, CBC modes supported. Add new
4127 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4128 Encryption Standard (AES) Ciphersuites for Transport Layer
4129 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4130 not enabled by default and were not part of the "ALL" ciphersuite
4131 alias because they were not yet official; they could be
4132 explicitly requested by specifying the "AESdraft" ciphersuite
4133 group alias. In the final release of OpenSSL 0.9.7, the group
4134 alias is called "AES" and is part of "ALL".)
4135 [Ben Laurie, Steve Henson, Bodo Moeller]
4137 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4138 request to response.
4141 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4142 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4143 extract information from a certificate request. OCSP_response_create()
4144 creates a response and optionally adds a basic response structure.
4145 OCSP_basic_add1_status() adds a complete single response to a basic
4146 response and returns the OCSP_SINGLERESP structure just added (to allow
4147 extensions to be included for example). OCSP_basic_add1_cert() adds a
4148 certificate to a basic response and OCSP_basic_sign() signs a basic
4149 response with various flags. New helper functions ASN1_TIME_check()
4150 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4151 (converts ASN1_TIME to GeneralizedTime).
4154 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4155 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4156 structure from a certificate. X509_pubkey_digest() digests the public_key
4157 contents: this is used in various key identifiers.
4160 *) Make sk_sort() tolerate a NULL argument.
4161 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4163 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4164 passed by the function are trusted implicitly. If any of them signed the
4165 response then it is assumed to be valid and is not verified.
4168 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4169 to data. This was previously part of the PKCS7 ASN1 code. This
4170 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4171 [Steve Henson, reported by Kenneth R. Robinette
4172 <support@securenetterm.com>]
4174 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4175 routines: without these tracing memory leaks is very painful.
4176 Fix leaks in PKCS12 and PKCS7 routines.
4179 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4180 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4181 effectively meant GeneralizedTime would never be used. Now it
4182 is initialised to -1 but X509_time_adj() now has to check the value
4183 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4184 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4185 [Steve Henson, reported by Kenneth R. Robinette
4186 <support@securenetterm.com>]
4188 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4189 result in a zero length in the ASN1_INTEGER structure which was
4190 not consistent with the structure when d2i_ASN1_INTEGER() was used
4191 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4192 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4193 where it did not print out a minus for negative ASN1_INTEGER.
4196 *) Add summary printout to ocsp utility. The various functions which
4197 convert status values to strings have been renamed to:
4198 OCSP_response_status_str(), OCSP_cert_status_str() and
4199 OCSP_crl_reason_str() and are no longer static. New options
4200 to verify nonce values and to disable verification. OCSP response
4201 printout format cleaned up.
4204 *) Add additional OCSP certificate checks. These are those specified
4205 in RFC2560. This consists of two separate checks: the CA of the
4206 certificate being checked must either be the OCSP signer certificate
4207 or the issuer of the OCSP signer certificate. In the latter case the
4208 OCSP signer certificate must contain the OCSP signing extended key
4209 usage. This check is performed by attempting to match the OCSP
4210 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4211 in the OCSP_CERTID structures of the response.
4214 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4215 and related routines. This uses the standard OpenSSL certificate
4216 verify routines to perform initial checks (just CA validity) and
4217 to obtain the certificate chain. Then additional checks will be
4218 performed on the chain. Currently the root CA is checked to see
4219 if it is explicitly trusted for OCSP signing. This is used to set
4220 a root CA as a global signing root: that is any certificate that
4221 chains to that CA is an acceptable OCSP signing certificate.
4224 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4225 extensions from a separate configuration file.
4226 As when reading extensions from the main configuration file,
4227 the '-extensions ...' option may be used for specifying the
4229 [Massimiliano Pala <madwolf@comune.modena.it>]
4231 *) New OCSP utility. Allows OCSP requests to be generated or
4232 read. The request can be sent to a responder and the output
4233 parsed, outputed or printed in text form. Not complete yet:
4234 still needs to check the OCSP response validity.
4237 *) New subcommands for 'openssl ca':
4238 'openssl ca -status <serial>' prints the status of the cert with
4239 the given serial number (according to the index file).
4240 'openssl ca -updatedb' updates the expiry status of certificates
4242 [Massimiliano Pala <madwolf@comune.modena.it>]
4244 *) New '-newreq-nodes' command option to CA.pl. This is like
4245 '-newreq', but calls 'openssl req' with the '-nodes' option
4246 so that the resulting key is not encrypted.
4247 [Damien Miller <djm@mindrot.org>]
4249 *) New configuration for the GNU Hurd.
4250 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4252 *) Initial code to implement OCSP basic response verify. This
4253 is currently incomplete. Currently just finds the signer's
4254 certificate and verifies the signature on the response.
4257 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4258 value of OPENSSLDIR. This is available via the new '-d' option
4259 to 'openssl version', and is also included in 'openssl version -a'.
4262 *) Allowing defining memory allocation callbacks that will be given
4263 file name and line number information in additional arguments
4264 (a const char* and an int). The basic functionality remains, as
4265 well as the original possibility to just replace malloc(),
4266 realloc() and free() by functions that do not know about these
4267 additional arguments. To register and find out the current
4268 settings for extended allocation functions, the following
4269 functions are provided:
4271 CRYPTO_set_mem_ex_functions
4272 CRYPTO_set_locked_mem_ex_functions
4273 CRYPTO_get_mem_ex_functions
4274 CRYPTO_get_locked_mem_ex_functions
4276 These work the same way as CRYPTO_set_mem_functions and friends.
4277 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4278 extended allocation function is enabled.
4279 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4280 a conventional allocation function is enabled.
4281 [Richard Levitte, Bodo Moeller]
4283 *) Finish off removing the remaining LHASH function pointer casts.
4284 There should no longer be any prototype-casting required when using
4285 the LHASH abstraction, and any casts that remain are "bugs". See
4286 the callback types and macros at the head of lhash.h for details
4287 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4290 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4291 If /dev/[u]random devices are not available or do not return enough
4292 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4294 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4295 /etc/entropy will be queried once each in this sequence, quering stops
4296 when enough entropy was collected without querying more sockets.
4299 *) Change the Unix RAND_poll() variant to be able to poll several
4300 random devices, as specified by DEVRANDOM, until a sufficient amount
4301 of data has been collected. We spend at most 10 ms on each file
4302 (select timeout) and read in non-blocking mode. DEVRANDOM now
4303 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4304 (previously it was just the string "/dev/urandom"), so on typical
4305 platforms the 10 ms delay will never occur.
4306 Also separate out the Unix variant to its own file, rand_unix.c.
4307 For VMS, there's a currently-empty rand_vms.c.
4310 *) Move OCSP client related routines to ocsp_cl.c. These
4311 provide utility functions which an application needing
4312 to issue a request to an OCSP responder and analyse the
4313 response will typically need: as opposed to those which an
4314 OCSP responder itself would need which will be added later.
4316 OCSP_request_sign() signs an OCSP request with an API similar
4317 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4318 response. OCSP_response_get1_basic() extracts basic response
4319 from response. OCSP_resp_find_status(): finds and extracts status
4320 information from an OCSP_CERTID structure (which will be created
4321 when the request structure is built). These are built from lower
4322 level functions which work on OCSP_SINGLERESP structures but
4323 wont normally be used unless the application wishes to examine
4324 extensions in the OCSP response for example.
4326 Replace nonce routines with a pair of functions.
4327 OCSP_request_add1_nonce() adds a nonce value and optionally
4328 generates a random value. OCSP_check_nonce() checks the
4329 validity of the nonce in an OCSP response.
4332 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4333 This doesn't copy the supplied OCSP_CERTID and avoids the
4334 need to free up the newly created id. Change return type
4335 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4336 This can then be used to add extensions to the request.
4337 Deleted OCSP_request_new(), since most of its functionality
4338 is now in OCSP_REQUEST_new() (and the case insensitive name
4339 clash) apart from the ability to set the request name which
4340 will be added elsewhere.
4343 *) Update OCSP API. Remove obsolete extensions argument from
4344 various functions. Extensions are now handled using the new
4345 OCSP extension code. New simple OCSP HTTP function which
4346 can be used to send requests and parse the response.
4349 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4350 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4351 uses the special reorder version of SET OF to sort the attributes
4352 and reorder them to match the encoded order. This resolves a long
4353 standing problem: a verify on a PKCS7 structure just after signing
4354 it used to fail because the attribute order did not match the
4355 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4356 it uses the received order. This is necessary to tolerate some broken
4357 software that does not order SET OF. This is handled by encoding
4358 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4359 to produce the required SET OF.
4362 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4363 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4364 files to get correct declarations of the ASN.1 item variables.
4367 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4368 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4369 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4370 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4371 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4372 ASN1_ITEM and no wrapper functions.
4375 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4376 replace the old function pointer based I/O routines. Change most of
4377 the *_d2i_bio() and *_d2i_fp() functions to use these.
4380 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4381 lines, recognice more "algorithms" that can be deselected, and make
4382 it complain about algorithm deselection that isn't recognised.
4385 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4386 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4387 to use new functions. Add NO_ASN1_OLD which can be set to remove
4388 some old style ASN1 functions: this can be used to determine if old
4389 code will still work when these eventually go away.
4392 *) New extension functions for OCSP structures, these follow the
4393 same conventions as certificates and CRLs.
4396 *) New function X509V3_add1_i2d(). This automatically encodes and
4397 adds an extension. Its behaviour can be customised with various
4398 flags to append, replace or delete. Various wrappers added for
4399 certifcates and CRLs.
4402 *) Fix to avoid calling the underlying ASN1 print routine when
4403 an extension cannot be parsed. Correct a typo in the
4404 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4407 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4408 entries for variables.
4411 *) Add functionality to apps/openssl.c for detecting locking
4412 problems: As the program is single-threaded, all we have
4413 to do is register a locking callback using an array for
4414 storing which locks are currently held by the program.
4417 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4418 SSL_get_ex_data_X509_STORE_idx(), which is used in
4419 ssl_verify_cert_chain() and thus can be called at any time
4420 during TLS/SSL handshakes so that thread-safety is essential.
4421 Unfortunately, the ex_data design is not at all suited
4422 for multi-threaded use, so it probably should be abolished.
4425 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4426 [Broadcom, tweaked and integrated by Geoff Thorpe]
4428 *) Move common extension printing code to new function
4429 X509V3_print_extensions(). Reorganise OCSP print routines and
4430 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4433 *) New function X509_signature_print() to remove duplication in some
4437 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4438 set (this was treated exactly the same as SET OF previously). This
4439 is used to reorder the STACK representing the structure to match the
4440 encoding. This will be used to get round a problem where a PKCS7
4441 structure which was signed could not be verified because the STACK
4442 order did not reflect the encoded order.
4445 *) Reimplement the OCSP ASN1 module using the new code.
4448 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4449 for its ASN1 operations. The old style function pointers still exist
4450 for now but they will eventually go away.
4453 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4454 completely replaces the old ASN1 functionality with a table driven
4455 encoder and decoder which interprets an ASN1_ITEM structure describing
4456 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4457 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4458 has also been converted to the new form.
4461 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4462 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4463 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4464 for negative moduli.
4467 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4468 of not touching the result's sign bit.
4471 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4475 *) Changed the LHASH code to use prototypes for callbacks, and created
4476 macros to declare and implement thin (optionally static) functions
4477 that provide type-safety and avoid function pointer casting for the
4478 type-specific callbacks.
4481 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4483 [Veers Staats <staatsvr@asc.hpc.mil>,
4484 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4486 *) Reformat the FAQ so the different questions and answers can be divided
4487 in sections depending on the subject.
4490 *) Have the zlib compression code load ZLIB.DLL dynamically under
4494 *) New function BN_mod_sqrt for computing square roots modulo a prime
4495 (using the probabilistic Tonelli-Shanks algorithm unless
4496 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4497 be handled deterministically).
4498 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4500 *) Make BN_mod_inverse faster by explicitly handling small quotients
4501 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4502 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4505 *) New function BN_kronecker.
4508 *) Fix BN_gcd so that it works on negative inputs; the result is
4509 positive unless both parameters are zero.
4510 Previously something reasonably close to an infinite loop was
4511 possible because numbers could be growing instead of shrinking
4512 in the implementation of Euclid's algorithm.
4515 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4516 sign of the number in question.
4518 Fix BN_is_word(a,w) to work correctly for w == 0.
4520 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4521 because its test if the absolute value of 'a' equals 'w'.
4522 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4523 it exists mostly for use in the implementations of BN_is_zero(),
4524 BN_is_one(), and BN_is_word().
4527 *) New function BN_swap.
4530 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4531 the exponentiation functions are more likely to produce reasonable
4532 results on negative inputs.
4535 *) Change BN_mod_mul so that the result is always non-negative.
4536 Previously, it could be negative if one of the factors was negative;
4537 I don't think anyone really wanted that behaviour.
4540 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4541 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4542 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4543 and add new functions:
4552 BN_mod_lshift1_quick
4556 These functions always generate non-negative results.
4558 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4559 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4561 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4562 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4563 be reduced modulo m.
4564 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4567 The following entry accidentily appeared in the CHANGES file
4568 distributed with OpenSSL 0.9.7. The modifications described in
4569 it do *not* apply to OpenSSL 0.9.7.
4571 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4572 was actually never needed) and in BN_mul(). The removal in BN_mul()
4573 required a small change in bn_mul_part_recursive() and the addition
4574 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4575 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4576 bn_sub_words() and bn_add_words() except they take arrays with
4581 *) In 'openssl passwd', verify passwords read from the terminal
4582 unless the '-salt' option is used (which usually means that
4583 verification would just waste user's time since the resulting
4584 hash is going to be compared with some given password hash)
4585 or the new '-noverify' option is used.
4587 This is an incompatible change, but it does not affect
4588 non-interactive use of 'openssl passwd' (passwords on the command
4589 line, '-stdin' option, '-in ...' option) and thus should not
4593 *) Remove all references to RSAref, since there's no more need for it.
4596 *) Make DSO load along a path given through an environment variable
4597 (SHLIB_PATH) with shl_load().
4600 *) Constify the ENGINE code as a result of BIGNUM constification.
4601 Also constify the RSA code and most things related to it. In a
4602 few places, most notable in the depth of the ASN.1 code, ugly
4603 casts back to non-const were required (to be solved at a later
4607 *) Make it so the openssl application has all engines loaded by default.
4610 *) Constify the BIGNUM routines a little more.
4613 *) Add the following functions:
4615 ENGINE_load_cswift()
4617 ENGINE_load_atalla()
4619 ENGINE_load_builtin_engines()
4621 That way, an application can itself choose if external engines that
4622 are built-in in OpenSSL shall ever be used or not. The benefit is
4623 that applications won't have to be linked with libdl or other dso
4624 libraries unless it's really needed.
4626 Changed 'openssl engine' to load all engines on demand.
4627 Changed the engine header files to avoid the duplication of some
4628 declarations (they differed!).
4631 *) 'openssl engine' can now list capabilities.
4634 *) Better error reporting in 'openssl engine'.
4637 *) Never call load_dh_param(NULL) in s_server.
4640 *) Add engine application. It can currently list engines by name and
4641 identity, and test if they are actually available.
4644 *) Improve RPM specification file by forcing symbolic linking and making
4645 sure the installed documentation is also owned by root.root.
4646 [Damien Miller <djm@mindrot.org>]
4648 *) Give the OpenSSL applications more possibilities to make use of
4649 keys (public as well as private) handled by engines.
4652 *) Add OCSP code that comes from CertCo.
4655 *) Add VMS support for the Rijndael code.
4658 *) Added untested support for Nuron crypto accelerator.
4661 *) Add support for external cryptographic devices. This code was
4662 previously distributed separately as the "engine" branch.
4663 [Geoff Thorpe, Richard Levitte]
4665 *) Rework the filename-translation in the DSO code. It is now possible to
4666 have far greater control over how a "name" is turned into a filename
4667 depending on the operating environment and any oddities about the
4668 different shared library filenames on each system.
4671 *) Support threads on FreeBSD-elf in Configure.
4674 *) Fix for SHA1 assembly problem with MASM: it produces
4675 warnings about corrupt line number information when assembling
4676 with debugging information. This is caused by the overlapping
4678 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4681 NCONF_get_number() has no error checking at all. As a replacement,
4682 NCONF_get_number_e() is defined (_e for "error checking") and is
4683 promoted strongly. The old NCONF_get_number is kept around for
4684 binary backward compatibility.
4685 Make it possible for methods to load from something other than a BIO,
4686 by providing a function pointer that is given a name instead of a BIO.
4687 For example, this could be used to load configuration data from an
4691 *) Fix for non blocking accept BIOs. Added new I/O special reason
4692 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4693 with non blocking I/O was not possible because no retry code was
4694 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4698 *) Added the beginnings of Rijndael support.
4701 *) Fix for bug in DirectoryString mask setting. Add support for
4702 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4703 to allow certificate printing to more controllable, additional
4704 'certopt' option to 'x509' to allow new printing options to be
4708 *) Clean old EAY MD5 hack from e_os.h.
4711 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4713 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4714 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4715 [Joe Orton, Steve Henson]
4717 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4719 *) Fix additional bug revealed by the NISCC test suite:
4721 Stop bug triggering large recursion when presented with
4722 certain ASN.1 tags (CVE-2003-0851)
4725 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4727 *) Fix various bugs revealed by running the NISCC test suite:
4729 Stop out of bounds reads in the ASN1 code when presented with
4730 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4732 If verify callback ignores invalid public key errors don't try to check
4733 certificate signature with the NULL public key.
4737 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4738 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4742 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4743 extra data after the compression methods not only for TLS 1.0
4744 but also for SSL 3.0 (as required by the specification).
4745 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4747 *) Change X509_certificate_type() to mark the key as exported/exportable
4748 when it's 512 *bits* long, not 512 bytes.
4751 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4753 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4754 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4755 a protocol version number mismatch like a decryption error
4756 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4759 *) Turn on RSA blinding by default in the default implementation
4760 to avoid a timing attack. Applications that don't want it can call
4761 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4762 They would be ill-advised to do so in most cases.
4763 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4765 *) Change RSA blinding code so that it works when the PRNG is not
4766 seeded (in this case, the secret RSA exponent is abused as
4767 an unpredictable seed -- if it is not unpredictable, there
4768 is no point in blinding anyway). Make RSA blinding thread-safe
4769 by remembering the creator's thread ID in rsa->blinding and
4770 having all other threads use local one-time blinding factors
4771 (this requires more computation than sharing rsa->blinding, but
4772 avoids excessive locking; and if an RSA object is not shared
4773 between threads, blinding will still be very fast).
4776 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4778 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4779 via timing by performing a MAC computation even if incorrrect
4780 block cipher padding has been found. This is a countermeasure
4781 against active attacks where the attacker has to distinguish
4782 between bad padding and a MAC verification error. (CVE-2003-0078)
4784 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4785 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4786 Martin Vuagnoux (EPFL, Ilion)]
4788 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4790 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4791 memory from it's contents. This is done with a counter that will
4792 place alternating values in each byte. This can be used to solve
4793 two issues: 1) the removal of calls to memset() by highly optimizing
4794 compilers, and 2) cleansing with other values than 0, since those can
4795 be read through on certain media, for example a swap space on disk.
4798 *) Bugfix: client side session caching did not work with external caching,
4799 because the session->cipher setting was not restored when reloading
4800 from the external cache. This problem was masked, when
4801 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4802 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4805 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4806 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4807 [Zeev Lieber <zeev-l@yahoo.com>]
4809 *) Undo an undocumented change introduced in 0.9.6e which caused
4810 repeated calls to OpenSSL_add_all_ciphers() and
4811 OpenSSL_add_all_digests() to be ignored, even after calling
4815 *) Change the default configuration reader to deal with last line not
4816 being properly terminated.
4819 *) Change X509_NAME_cmp() so it applies the special rules on handling
4820 DN values that are of type PrintableString, as well as RDNs of type
4821 emailAddress where the value has the type ia5String.
4822 [stefank@valicert.com via Richard Levitte]
4824 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4825 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4826 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4827 the bitwise-OR of the two for use by the majority of applications
4828 wanting this behaviour, and update the docs. The documented
4829 behaviour and actual behaviour were inconsistent and had been
4830 changing anyway, so this is more a bug-fix than a behavioural
4832 [Geoff Thorpe, diagnosed by Nadav Har'El]
4834 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4835 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4838 *) Fix initialization code race conditions in
4839 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4840 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4841 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4842 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4843 ssl2_get_cipher_by_char(),
4844 ssl3_get_cipher_by_char().
4845 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4847 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4848 the cached sessions are flushed, as the remove_cb() might use ex_data
4849 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4850 (see [openssl.org #212]).
4851 [Geoff Thorpe, Lutz Jaenicke]
4853 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4854 length, instead of the encoding length to d2i_ASN1_OBJECT.
4857 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4859 *) [In 0.9.6g-engine release:]
4860 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4861 [Lynn Gazis <lgazis@rainbow.com>]
4863 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4865 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4866 and get fix the header length calculation.
4867 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4868 Alon Kantor <alonk@checkpoint.com> (and others),
4871 *) Use proper error handling instead of 'assertions' in buffer
4872 overflow checks added in 0.9.6e. This prevents DoS (the
4873 assertions could call abort()).
4874 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4876 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4878 *) Add various sanity checks to asn1_get_length() to reject
4879 the ASN1 length bytes if they exceed sizeof(long), will appear
4880 negative or the content length exceeds the length of the
4882 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4884 *) Fix cipher selection routines: ciphers without encryption had no flags
4885 for the cipher strength set and where therefore not handled correctly
4886 by the selection routines (PR #130).
4889 *) Fix EVP_dsa_sha macro.
4893 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4894 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4895 that was added in OpenSSL 0.9.6d.
4897 As the countermeasure turned out to be incompatible with some
4898 broken SSL implementations, the new option is part of SSL_OP_ALL.
4899 SSL_OP_ALL is usually employed when compatibility with weird SSL
4900 implementations is desired (e.g. '-bugs' option to 's_client' and
4901 's_server'), so the new option is automatically set in many
4905 *) Changes in security patch:
4907 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4908 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4909 Air Force Materiel Command, USAF, under agreement number
4912 *) Add various sanity checks to asn1_get_length() to reject
4913 the ASN1 length bytes if they exceed sizeof(long), will appear
4914 negative or the content length exceeds the length of the
4915 supplied buffer. (CVE-2002-0659)
4916 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4918 *) Assertions for various potential buffer overflows, not known to
4920 [Ben Laurie (CHATS)]
4922 *) Various temporary buffers to hold ASCII versions of integers were
4923 too small for 64 bit platforms. (CVE-2002-0655)
4924 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4926 *) Remote buffer overflow in SSL3 protocol - an attacker could
4927 supply an oversized session ID to a client. (CVE-2002-0656)
4928 [Ben Laurie (CHATS)]
4930 *) Remote buffer overflow in SSL2 protocol - an attacker could
4931 supply an oversized client master key. (CVE-2002-0656)
4932 [Ben Laurie (CHATS)]
4934 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4936 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4937 encoded as NULL) with id-dsa-with-sha1.
4938 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4940 *) Check various X509_...() return values in apps/req.c.
4941 [Nils Larsch <nla@trustcenter.de>]
4943 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4944 an end-of-file condition would erronously be flagged, when the CRLF
4945 was just at the end of a processed block. The bug was discovered when
4946 processing data through a buffering memory BIO handing the data to a
4947 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4948 <ptsekov@syntrex.com> and Nedelcho Stanev.
4951 *) Implement a countermeasure against a vulnerability recently found
4952 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4953 before application data chunks to avoid the use of known IVs
4954 with data potentially chosen by the attacker.
4957 *) Fix length checks in ssl3_get_client_hello().
4960 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4961 to prevent ssl3_read_internal() from incorrectly assuming that
4962 ssl3_read_bytes() found application data while handshake
4963 processing was enabled when in fact s->s3->in_read_app_data was
4964 merely automatically cleared during the initial handshake.
4965 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4967 *) Fix object definitions for Private and Enterprise: they were not
4968 recognized in their shortname (=lowercase) representation. Extend
4969 obj_dat.pl to issue an error when using undefined keywords instead
4970 of silently ignoring the problem (Svenning Sorensen
4971 <sss@sss.dnsalias.net>).
4974 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4975 generators, i.e. generators other than 2 and 5. (Previously, the
4976 code did not properly initialise the 'add' and 'rem' values to
4977 BN_generate_prime().)
4979 In the new general case, we do not insist that 'generator' is
4980 actually a primitive root: This requirement is rather pointless;
4981 a generator of the order-q subgroup is just as good, if not
4985 *) Map new X509 verification errors to alerts. Discovered and submitted by
4986 Tom Wu <tom@arcot.com>.
4989 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4990 returning non-zero before the data has been completely received
4991 when using non-blocking I/O.
4992 [Bodo Moeller; problem pointed out by John Hughes]
4994 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4995 [Ben Laurie, Lutz Jaenicke]
4997 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4998 Yoram Zahavi <YoramZ@gilian.com>).
5001 *) Add information about CygWin 1.3 and on, and preserve proper
5002 configuration for the versions before that.
5003 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5005 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5006 check whether we deal with a copy of a session and do not delete from
5007 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5008 <izhar@checkpoint.com>.
5011 *) Do not store session data into the internal session cache, if it
5012 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5013 flag is set). Proposed by Aslam <aslam@funk.com>.
5016 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5020 *) [In 0.9.6d-engine release:]
5021 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5022 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5024 *) Add the configuration target linux-s390x.
5025 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5027 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5028 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5029 variable as an indication that a ClientHello message has been
5030 received. As the flag value will be lost between multiple
5031 invocations of ssl3_accept when using non-blocking I/O, the
5032 function may not be aware that a handshake has actually taken
5033 place, thus preventing a new session from being added to the
5036 To avoid this problem, we now set s->new_session to 2 instead of
5037 using a local variable.
5038 [Lutz Jaenicke, Bodo Moeller]
5040 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5041 if the SSL_R_LENGTH_MISMATCH error is detected.
5042 [Geoff Thorpe, Bodo Moeller]
5044 *) New 'shared_ldflag' column in Configure platform table.
5047 *) Fix EVP_CIPHER_mode macro.
5048 ["Dan S. Camper" <dan@bti.net>]
5050 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5051 type, we must throw them away by setting rr->length to 0.
5052 [D P Chang <dpc@qualys.com>]
5054 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5056 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5057 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5058 worked incorrectly for those cases where range = 10..._2 and
5059 3*range is two bits longer than range.)
5062 *) Only add signing time to PKCS7 structures if it is not already
5066 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5067 OBJ_ld_ce should be OBJ_id_ce.
5068 Also some ip-pda OIDs in crypto/objects/objects.txt were
5069 incorrect (cf. RFC 3039).
5070 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5072 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5073 returns early because it has nothing to do.
5074 [Andy Schneider <andy.schneider@bjss.co.uk>]
5076 *) [In 0.9.6c-engine release:]
5077 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5078 [Andy Schneider <andy.schneider@bjss.co.uk>]
5080 *) [In 0.9.6c-engine release:]
5081 Add support for Cryptographic Appliance's keyserver technology.
5082 (Use engine 'keyclient')
5083 [Cryptographic Appliances and Geoff Thorpe]
5085 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5086 is called via tools/c89.sh because arguments have to be
5087 rearranged (all '-L' options must appear before the first object
5089 [Richard Shapiro <rshapiro@abinitio.com>]
5091 *) [In 0.9.6c-engine release:]
5092 Add support for Broadcom crypto accelerator cards, backported
5094 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5096 *) [In 0.9.6c-engine release:]
5097 Add support for SureWare crypto accelerator cards from
5098 Baltimore Technologies. (Use engine 'sureware')
5099 [Baltimore Technologies and Mark Cox]
5101 *) [In 0.9.6c-engine release:]
5102 Add support for crypto accelerator cards from Accelerated
5103 Encryption Processing, www.aep.ie. (Use engine 'aep')
5104 [AEP Inc. and Mark Cox]
5106 *) Add a configuration entry for gcc on UnixWare.
5107 [Gary Benson <gbenson@redhat.com>]
5109 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5110 messages are stored in a single piece (fixed-length part and
5111 variable-length part combined) and fix various bugs found on the way.
5114 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5115 instead. BIO_gethostbyname() does not know what timeouts are
5116 appropriate, so entries would stay in cache even when they have
5118 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5120 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5121 faced with a pathologically small ClientHello fragment that does
5122 not contain client_version: Instead of aborting with an error,
5123 simply choose the highest available protocol version (i.e.,
5124 TLS 1.0 unless it is disabled). In practice, ClientHello
5125 messages are never sent like this, but this change gives us
5126 strictly correct behaviour at least for TLS.
5129 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5130 never resets s->method to s->ctx->method when called from within
5131 one of the SSL handshake functions.
5132 [Bodo Moeller; problem pointed out by Niko Baric]
5134 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5135 (sent using the client's version number) if client_version is
5136 smaller than the protocol version in use. Also change
5137 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5138 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5139 the client will at least see that alert.
5142 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5146 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5147 client receives HelloRequest while in a handshake.
5148 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5150 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5151 should end in 'break', not 'goto end' which circuments various
5152 cleanups done in state SSL_ST_OK. But session related stuff
5153 must be disabled for SSL_ST_OK in the case that we just sent a
5156 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5157 before just sending a HelloRequest.
5158 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5160 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5161 reveal whether illegal block cipher padding was found or a MAC
5162 verification error occured. (Neither SSLerr() codes nor alerts
5163 are directly visible to potential attackers, but the information
5164 may leak via logfiles.)
5166 Similar changes are not required for the SSL 2.0 implementation
5167 because the number of padding bytes is sent in clear for SSL 2.0,
5168 and the extra bytes are just ignored. However ssl/s2_pkt.c
5169 failed to verify that the purported number of padding bytes is in
5173 *) Add OpenUNIX-8 support including shared libraries
5174 (Boyd Lynn Gerber <gerberb@zenez.com>).
5177 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5178 'wristwatch attack' using huge encoding parameters (cf.
5179 James H. Manger's CRYPTO 2001 paper). Note that the
5180 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5181 encoding parameters and hence was not vulnerable.
5184 *) BN_sqr() bug fix.
5185 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5187 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5188 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5189 followed by modular reduction.
5190 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5192 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5193 equivalent based on BN_pseudo_rand() instead of BN_rand().
5196 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5197 This function was broken, as the check for a new client hello message
5198 to handle SGC did not allow these large messages.
5199 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5202 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5205 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5206 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5209 *) Rework the configuration and shared library support for Tru64 Unix.
5210 The configuration part makes use of modern compiler features and
5211 still retains old compiler behavior for those that run older versions
5212 of the OS. The shared library support part includes a variant that
5213 uses the RPATH feature, and is available through the special
5214 configuration target "alpha-cc-rpath", which will never be selected
5216 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5218 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5219 with the same message size as in ssl3_get_certificate_request().
5220 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5221 messages might inadvertently be reject as too long.
5222 [Petr Lampa <lampa@fee.vutbr.cz>]
5224 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5227 *) Modified SSL library such that the verify_callback that has been set
5228 specificly for an SSL object with SSL_set_verify() is actually being
5229 used. Before the change, a verify_callback set with this function was
5230 ignored and the verify_callback() set in the SSL_CTX at the time of
5231 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5232 to allow the necessary settings.
5235 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5236 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5237 done automatically (in contradiction to the requirements of the C
5238 standard). This made problems when used from OpenSSH.
5241 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5242 dh->length and always used
5244 BN_rand_range(priv_key, dh->p).
5246 BN_rand_range() is not necessary for Diffie-Hellman, and this
5247 specific range makes Diffie-Hellman unnecessarily inefficient if
5248 dh->length (recommended exponent length) is much smaller than the
5249 length of dh->p. We could use BN_rand_range() if the order of
5250 the subgroup was stored in the DH structure, but we only have
5255 BN_rand(priv_key, l, ...)
5257 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5263 RSA_eay_public_encrypt
5264 RSA_eay_private_decrypt
5265 RSA_eay_private_encrypt (signing)
5266 RSA_eay_public_decrypt (signature verification)
5268 (default implementations for RSA_public_encrypt,
5269 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5270 always reject numbers >= n.
5273 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5274 to synchronize access to 'locking_thread'. This is necessary on
5275 systems where access to 'locking_thread' (an 'unsigned long'
5276 variable) is not atomic.
5279 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5280 *before* setting the 'crypto_lock_rand' flag. The previous code had
5281 a race condition if 0 is a valid thread ID.
5282 [Travis Vitek <vitek@roguewave.com>]
5284 *) Add support for shared libraries under Irix.
5285 [Albert Chin-A-Young <china@thewrittenword.com>]
5287 *) Add configuration option to build on Linux on both big-endian and
5289 [Ralf Baechle <ralf@uni-koblenz.de>]
5291 *) Add the possibility to create shared libraries on HP-UX.
5294 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5296 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5297 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5298 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5299 PRNG state recovery was possible based on the output of
5300 one PRNG request appropriately sized to gain knowledge on
5301 'md' followed by enough consecutive 1-byte PRNG requests
5302 to traverse all of 'state'.
5304 1. When updating 'md_local' (the current thread's copy of 'md')
5305 during PRNG output generation, hash all of the previous
5306 'md_local' value, not just the half used for PRNG output.
5308 2. Make the number of bytes from 'state' included into the hash
5309 independent from the number of PRNG bytes requested.
5311 The first measure alone would be sufficient to avoid
5312 Markku-Juhani's attack. (Actually it had never occurred
5313 to me that the half of 'md_local' used for chaining was the
5314 half from which PRNG output bytes were taken -- I had always
5315 assumed that the secret half would be used.) The second
5316 measure makes sure that additional data from 'state' is never
5317 mixed into 'md_local' in small portions; this heuristically
5318 further strengthens the PRNG.
5321 *) Fix crypto/bn/asm/mips3.s.
5324 *) When only the key is given to "enc", the IV is undefined. Print out
5325 an error message in this case.
5328 *) Handle special case when X509_NAME is empty in X509 printing routines.
5331 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5332 positive and less than q.
5335 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5336 used: it isn't thread safe and the add_lock_callback should handle
5338 [Paul Rose <Paul.Rose@bridge.com>]
5340 *) Verify that incoming data obeys the block size in
5341 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5345 [Ulf Möller, Bodo Möller]
5347 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5348 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5349 when fixing the server behaviour for backwards-compatible 'client
5350 hello' messages. (Note that the attack is impractical against
5351 SSL 3.0 and TLS 1.0 anyway because length and version checking
5352 means that the probability of guessing a valid ciphertext is
5353 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5356 Before 0.9.5, the countermeasure (hide the error by generating a
5357 random 'decryption result') did not work properly because
5358 ERR_clear_error() was missing, meaning that SSL_get_error() would
5359 detect the supposedly ignored error.
5361 Both problems are now fixed.
5364 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5365 (previously it was 1024).
5368 *) Fix for compatibility mode trust settings: ignore trust settings
5369 unless some valid trust or reject settings are present.
5372 *) Fix for blowfish EVP: its a variable length cipher.
5375 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5376 parameters in DSA public key structures and return an error in the
5377 DSA routines if parameters are absent.
5380 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5381 in the current directory if neither $RANDFILE nor $HOME was set.
5382 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5383 caused some confusion to Windows users who haven't defined $HOME.
5384 Thus RAND_file_name() is changed again: e_os.h can define a
5385 DEFAULT_HOME, which will be used if $HOME is not set.
5386 For Windows, we use "C:"; on other platforms, we still require
5387 environment variables.
5389 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5390 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5391 having multiple threads call RAND_poll() concurrently.
5394 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5395 combination of a flag and a thread ID variable.
5396 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5397 flag), *other* threads can enter ssleay_add_bytes without obeying
5398 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5399 that they do not hold after the first thread unsets add_do_not_lock).
5402 *) Change bctest again: '-x' expressions are not available in all
5406 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5408 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5409 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5411 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5412 the default extension for executables, if any. Also, make the perl
5413 scripts that use symlink() to test if it really exists and use "cp"
5414 if it doesn't. All this made OpenSSL compilable and installable in
5418 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5419 If SEQUENCE is length is indefinite just set c->slen to the total
5420 amount of data available.
5421 [Steve Henson, reported by shige@FreeBSD.org]
5422 [This change does not apply to 0.9.7.]
5424 *) Change bctest to avoid here-documents inside command substitution
5425 (workaround for FreeBSD /bin/sh bug).
5426 For compatibility with Ultrix, avoid shell functions (introduced
5427 in the bctest version that searches along $PATH).
5430 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5431 with des_encrypt() defined on some operating systems, like Solaris
5435 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5436 On the Importance of Eliminating Errors in Cryptographic
5437 Computations, J. Cryptology 14 (2001) 2, 101-119,
5438 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5441 *) MIPS assembler BIGNUM division bug fix.
5444 *) Disabled incorrect Alpha assembler code.
5447 *) Fix PKCS#7 decode routines so they correctly update the length
5448 after reading an EOC for the EXPLICIT tag.
5450 [This change does not apply to 0.9.7.]
5452 *) Fix bug in PKCS#12 key generation routines. This was triggered
5453 if a 3DES key was generated with a 0 initial byte. Include
5454 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5455 (but broken) behaviour.
5458 *) Enhance bctest to search for a working bc along $PATH and print
5460 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5462 *) Fix memory leaks in err.c: free err_data string if necessary;
5463 don't write to the wrong index in ERR_set_error_data.
5466 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5470 *) Replace rdtsc with _emit statements for VC++ version 5.
5471 [Jeremy Cooper <jeremy@baymoo.org>]
5473 *) Make it possible to reuse SSLv2 sessions.
5476 *) In copy_email() check for >= 0 as a return value for
5477 X509_NAME_get_index_by_NID() since 0 is a valid index.
5478 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5480 *) Avoid coredump with unsupported or invalid public keys by checking if
5481 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5482 PKCS7_verify() fails with non detached data.
5485 *) Don't use getenv in library functions when run as setuid/setgid.
5486 New function OPENSSL_issetugid().
5489 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5490 due to incorrect handling of multi-threading:
5492 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5494 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5496 3. Count how many times MemCheck_off() has been called so that
5497 nested use can be treated correctly. This also avoids
5498 inband-signalling in the previous code (which relied on the
5499 assumption that thread ID 0 is impossible).
5502 *) Add "-rand" option also to s_client and s_server.
5505 *) Fix CPU detection on Irix 6.x.
5506 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5507 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5509 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5512 [This change does not apply to 0.9.7.]
5514 *) Use the cached encoding of an X509_NAME structure rather than
5515 copying it. This is apparently the reason for the libsafe "errors"
5516 but the code is actually correct.
5519 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5520 Bleichenbacher's DSA attack.
5521 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5522 to be set and top=0 forces the highest bit to be set; top=-1 is new
5523 and leaves the highest bit random.
5524 [Ulf Moeller, Bodo Moeller]
5526 *) In the NCONF_...-based implementations for CONF_... queries
5527 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5528 a temporary CONF structure with the data component set to NULL
5529 (which gives segmentation faults in lh_retrieve).
5530 Instead, use NULL for the CONF pointer in CONF_get_string and
5531 CONF_get_number (which may use environment variables) and directly
5532 return NULL from CONF_get_section.
5535 *) Fix potential buffer overrun for EBCDIC.
5538 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5539 keyUsage if basicConstraints absent for a CA.
5542 *) Make SMIME_write_PKCS7() write mail header values with a format that
5543 is more generally accepted (no spaces before the semicolon), since
5544 some programs can't parse those values properly otherwise. Also make
5545 sure BIO's that break lines after each write do not create invalid
5549 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5550 macros previously used would not encode an empty SEQUENCE OF
5551 and break the signature.
5553 [This change does not apply to 0.9.7.]
5555 *) Zero the premaster secret after deriving the master secret in
5559 *) Add some EVP_add_digest_alias registrations (as found in
5560 OpenSSL_add_all_digests()) to SSL_library_init()
5561 aka OpenSSL_add_ssl_algorithms(). This provides improved
5562 compatibility with peers using X.509 certificates
5563 with unconventional AlgorithmIdentifier OIDs.
5566 *) Fix for Irix with NO_ASM.
5567 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5569 *) ./config script fixes.
5570 [Ulf Moeller, Richard Levitte]
5572 *) Fix 'openssl passwd -1'.
5575 *) Change PKCS12_key_gen_asc() so it can cope with non null
5576 terminated strings whose length is passed in the passlen
5577 parameter, for example from PEM callbacks. This was done
5578 by adding an extra length parameter to asc2uni().
5579 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5581 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5582 call failed, free the DSA structure.
5585 *) Fix to uni2asc() to cope with zero length Unicode strings.
5586 These are present in some PKCS#12 files.
5589 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5590 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5591 when writing a 32767 byte record.
5592 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5594 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5595 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5597 (RSA objects have a reference count access to which is protected
5598 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5599 so they are meant to be shared between threads.)
5600 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5601 "Reddie, Steven" <Steven.Reddie@ca.com>]
5603 *) Fix a deadlock in CRYPTO_mem_leaks().
5606 *) Use better test patterns in bntest.
5609 *) rand_win.c fix for Borland C.
5612 *) BN_rshift bugfix for n == 0.
5615 *) Add a 'bctest' script that checks for some known 'bc' bugs
5616 so that 'make test' does not abort just because 'bc' is broken.
5619 *) Store verify_result within SSL_SESSION also for client side to
5620 avoid potential security hole. (Re-used sessions on the client side
5621 always resulted in verify_result==X509_V_OK, not using the original
5622 result of the server certificate verification.)
5625 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5626 SSL3_RT_APPLICATION_DATA, return 0.
5627 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5631 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5632 releases, have been re-implemented by renaming the previous
5633 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5634 and ssl3_read_internal, respectively, and adding 'peek' parameters
5635 to them. The new ssl[23]_{read,peek} functions are calls to
5636 ssl[23]_read_internal with the 'peek' flag set appropriately.
5637 A 'peek' parameter has also been added to ssl3_read_bytes, which
5638 does the actual work for ssl3_read_internal.
5641 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5642 the method-specific "init()" handler. Also clean up ex_data after
5643 calling the method-specific "finish()" handler. Previously, this was
5644 happening the other way round.
5647 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5648 The previous value, 12, was not always sufficient for BN_mod_exp().
5651 *) Make sure that shared libraries get the internal name engine with
5652 the full version number and not just 0. This should mark the
5653 shared libraries as not backward compatible. Of course, this should
5654 be changed again when we can guarantee backward binary compatibility.
5657 *) Fix typo in get_cert_by_subject() in by_dir.c
5658 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5660 *) Rework the system to generate shared libraries:
5662 - Make note of the expected extension for the shared libraries and
5663 if there is a need for symbolic links from for example libcrypto.so.0
5664 to libcrypto.so.0.9.7. There is extended info in Configure for
5667 - Make as few rebuilds of the shared libraries as possible.
5669 - Still avoid linking the OpenSSL programs with the shared libraries.
5671 - When installing, install the shared libraries separately from the
5675 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5677 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5678 and not in SSL_clear because the latter is also used by the
5679 accept/connect functions; previously, the settings made by
5680 SSL_set_read_ahead would be lost during the handshake.
5681 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5683 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5684 Previously, it would create entries for disableed algorithms no
5688 *) Added several new manual pages for SSL_* function.
5691 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5693 *) In ssl23_get_client_hello, generate an error message when faced
5694 with an initial SSL 3.0/TLS record that is too small to contain the
5695 first two bytes of the ClientHello message, i.e. client_version.
5696 (Note that this is a pathologic case that probably has never happened
5697 in real life.) The previous approach was to use the version number
5698 from the record header as a substitute; but our protocol choice
5699 should not depend on that one because it is not authenticated
5700 by the Finished messages.
5703 *) More robust randomness gathering functions for Windows.
5704 [Jeffrey Altman <jaltman@columbia.edu>]
5706 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5707 not set then we don't setup the error code for issuer check errors
5708 to avoid possibly overwriting other errors which the callback does
5709 handle. If an application does set the flag then we assume it knows
5710 what it is doing and can handle the new informational codes
5714 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5715 a general "ANY" type, as such it should be able to decode anything
5716 including tagged types. However it didn't check the class so it would
5717 wrongly interpret tagged types in the same way as their universal
5718 counterpart and unknown types were just rejected. Changed so that the
5719 tagged and unknown types are handled in the same way as a SEQUENCE:
5720 that is the encoding is stored intact. There is also a new type
5721 "V_ASN1_OTHER" which is used when the class is not universal, in this
5722 case we have no idea what the actual type is so we just lump them all
5726 *) On VMS, stdout may very well lead to a file that is written to
5727 in a record-oriented fashion. That means that every write() will
5728 write a separate record, which will be read separately by the
5729 programs trying to read from it. This can be very confusing.
5731 The solution is to put a BIO filter in the way that will buffer
5732 text until a linefeed is reached, and then write everything a
5733 line at a time, so every record written will be an actual line,
5734 not chunks of lines and not (usually doesn't happen, but I've
5735 seen it once) several lines in one record. BIO_f_linebuffer() is
5738 Currently, it's a VMS-only method, because that's where it has
5739 been tested well enough.
5742 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5743 it can return incorrect results.
5744 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5745 but it was in 0.9.6-beta[12].)
5748 *) Disable the check for content being present when verifying detached
5749 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5750 include zero length content when signing messages.
5753 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5754 BIO_ctrl (for BIO pairs).
5757 *) Add DSO method for VMS.
5760 *) Bug fix: Montgomery multiplication could produce results with the
5764 *) Add RPM specification openssl.spec and modify it to build three
5765 packages. The default package contains applications, application
5766 documentation and run-time libraries. The devel package contains
5767 include files, static libraries and function documentation. The
5768 doc package contains the contents of the doc directory. The original
5769 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5772 *) Add a large number of documentation files for many SSL routines.
5773 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5775 *) Add a configuration entry for Sony News 4.
5776 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5778 *) Don't set the two most significant bits to one when generating a
5779 random number < q in the DSA library.
5782 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5783 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5784 the underlying transport is blocking) if a handshake took place.
5785 (The default behaviour is needed by applications such as s_client
5786 and s_server that use select() to determine when to use SSL_read;
5787 but for applications that know in advance when to expect data, it
5788 just makes things more complicated.)
5791 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5795 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5796 work better on such systems.
5797 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5799 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5800 Update PKCS12_parse() so it copies the friendlyName and the
5801 keyid to the certificates aux info.
5804 *) Fix bug in PKCS7_verify() which caused an infinite loop
5805 if there was more than one signature.
5806 [Sven Uszpelkat <su@celocom.de>]
5808 *) Major change in util/mkdef.pl to include extra information
5809 about each symbol, as well as presentig variables as well
5810 as functions. This change means that there's n more need
5811 to rebuild the .num files when some algorithms are excluded.
5814 *) Allow the verify time to be set by an application,
5815 rather than always using the current time.
5818 *) Phase 2 verify code reorganisation. The certificate
5819 verify code now looks up an issuer certificate by a
5820 number of criteria: subject name, authority key id
5821 and key usage. It also verifies self signed certificates
5822 by the same criteria. The main comparison function is
5823 X509_check_issued() which performs these checks.
5825 Lot of changes were necessary in order to support this
5826 without completely rewriting the lookup code.
5828 Authority and subject key identifier are now cached.
5830 The LHASH 'certs' is X509_STORE has now been replaced
5831 by a STACK_OF(X509_OBJECT). This is mainly because an
5832 LHASH can't store or retrieve multiple objects with
5833 the same hash value.
5835 As a result various functions (which were all internal
5836 use only) have changed to handle the new X509_STORE
5837 structure. This will break anything that messed round
5838 with X509_STORE internally.
5840 The functions X509_STORE_add_cert() now checks for an
5841 exact match, rather than just subject name.
5843 The X509_STORE API doesn't directly support the retrieval
5844 of multiple certificates matching a given criteria, however
5845 this can be worked round by performing a lookup first
5846 (which will fill the cache with candidate certificates)
5847 and then examining the cache for matches. This is probably
5848 the best we can do without throwing out X509_LOOKUP
5849 entirely (maybe later...).
5851 The X509_VERIFY_CTX structure has been enhanced considerably.
5853 All certificate lookup operations now go via a get_issuer()
5854 callback. Although this currently uses an X509_STORE it
5855 can be replaced by custom lookups. This is a simple way
5856 to bypass the X509_STORE hackery necessary to make this
5857 work and makes it possible to use more efficient techniques
5858 in future. A very simple version which uses a simple
5859 STACK for its trusted certificate store is also provided
5860 using X509_STORE_CTX_trusted_stack().
5862 The verify_cb() and verify() callbacks now have equivalents
5863 in the X509_STORE_CTX structure.
5865 X509_STORE_CTX also has a 'flags' field which can be used
5866 to customise the verify behaviour.
5869 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5870 excludes S/MIME capabilities.
5873 *) When a certificate request is read in keep a copy of the
5874 original encoding of the signed data and use it when outputing
5875 again. Signatures then use the original encoding rather than
5876 a decoded, encoded version which may cause problems if the
5877 request is improperly encoded.
5880 *) For consistency with other BIO_puts implementations, call
5881 buffer_write(b, ...) directly in buffer_puts instead of calling
5884 In BIO_puts, increment b->num_write as in BIO_write.
5885 [Peter.Sylvester@EdelWeb.fr]
5887 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5888 BN_zero, we may not return a BIGNUM with an array consisting of
5892 *) Avoid calling abort() from within the library when problems are
5893 detected, except if preprocessor symbols have been defined
5894 (such as REF_CHECK, BN_DEBUG etc.).
5897 *) New openssl application 'rsautl'. This utility can be
5898 used for low level RSA operations. DER public key
5899 BIO/fp routines also added.
5902 *) New Configure entry and patches for compiling on QNX 4.
5903 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5905 *) A demo state-machine implementation was sponsored by
5906 Nuron (http://www.nuron.com/) and is now available in
5907 demos/state_machine.
5910 *) New options added to the 'dgst' utility for signature
5911 generation and verification.
5914 *) Unrecognized PKCS#7 content types are now handled via a
5915 catch all ASN1_TYPE structure. This allows unsupported
5916 types to be stored as a "blob" and an application can
5917 encode and decode it manually.
5920 *) Fix various signed/unsigned issues to make a_strex.c
5922 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5924 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5925 length if passed a buffer. ASN1_INTEGER_to_BN failed
5926 if passed a NULL BN and its argument was negative.
5927 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5929 *) Modification to PKCS#7 encoding routines to output definite
5930 length encoding. Since currently the whole structures are in
5931 memory there's not real point in using indefinite length
5932 constructed encoding. However if OpenSSL is compiled with
5933 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5936 *) Added BIO_vprintf() and BIO_vsnprintf().
5939 *) Added more prefixes to parse for in the the strings written
5940 through a logging bio, to cover all the levels that are available
5941 through syslog. The prefixes are now:
5943 PANIC, EMERG, EMR => LOG_EMERG
5944 ALERT, ALR => LOG_ALERT
5945 CRIT, CRI => LOG_CRIT
5946 ERROR, ERR => LOG_ERR
5947 WARNING, WARN, WAR => LOG_WARNING
5948 NOTICE, NOTE, NOT => LOG_NOTICE
5949 INFO, INF => LOG_INFO
5950 DEBUG, DBG => LOG_DEBUG
5952 and as before, if none of those prefixes are present at the
5953 beginning of the string, LOG_ERR is chosen.
5955 On Win32, the LOG_* levels are mapped according to this:
5957 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5958 LOG_WARNING => EVENTLOG_WARNING_TYPE
5959 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5963 *) Made it possible to reconfigure with just the configuration
5964 argument "reconf" or "reconfigure". The command line arguments
5965 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5966 and are retrieved from there when reconfiguring.
5970 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5972 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5975 *) The obj_dat.pl script was messing up the sorting of object
5976 names. The reason was that it compared the quoted version
5977 of strings as a result "OCSP" > "OCSP Signing" because
5978 " > SPACE. Changed script to store unquoted versions of
5979 names and add quotes on output. It was also omitting some
5980 names from the lookup table if they were given a default
5981 value (that is if SN is missing it is given the same
5982 value as LN and vice versa), these are now added on the
5983 grounds that if an object has a name we should be able to
5984 look it up. Finally added warning output when duplicate
5985 short or long names are found.
5988 *) Changes needed for Tandem NSK.
5989 [Scott Uroff <scott@xypro.com>]
5991 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5992 RSA_padding_check_SSLv23(), special padding was never detected
5993 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5994 version rollback attacks was not effective.
5996 In s23_clnt.c, don't use special rollback-attack detection padding
5997 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5998 client; similarly, in s23_srvr.c, don't do the rollback check if
5999 SSL 2.0 is the only protocol enabled in the server.
6002 *) Make it possible to get hexdumps of unprintable data with 'openssl
6003 asn1parse'. By implication, the functions ASN1_parse_dump() and
6004 BIO_dump_indent() are added.
6007 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6008 these print out strings and name structures based on various
6009 flags including RFC2253 support and proper handling of
6010 multibyte characters. Added options to the 'x509' utility
6011 to allow the various flags to be set.
6014 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6015 Also change the functions X509_cmp_current_time() and
6016 X509_gmtime_adj() work with an ASN1_TIME structure,
6017 this will enable certificates using GeneralizedTime in validity
6018 dates to be checked.
6021 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6022 negative public key encodings) on by default,
6023 NO_NEG_PUBKEY_BUG can be set to disable it.
6026 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6027 content octets. An i2c_ASN1_OBJECT is unnecessary because
6028 the encoding can be trivially obtained from the structure.
6031 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6032 not read locks (CRYPTO_r_[un]lock).
6035 *) A first attempt at creating official support for shared
6036 libraries through configuration. I've kept it so the
6037 default is static libraries only, and the OpenSSL programs
6038 are always statically linked for now, but there are
6039 preparations for dynamic linking in place.
6040 This has been tested on Linux and Tru64.
6043 *) Randomness polling function for Win9x, as described in:
6044 Peter Gutmann, Software Generation of Practically Strong
6048 *) Fix so PRNG is seeded in req if using an already existing
6052 *) New options to smime application. -inform and -outform
6053 allow alternative formats for the S/MIME message including
6054 PEM and DER. The -content option allows the content to be
6055 specified separately. This should allow things like Netscape
6056 form signing output easier to verify.
6059 *) Fix the ASN1 encoding of tags using the 'long form'.
6062 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6063 STRING types. These convert content octets to and from the
6064 underlying type. The actual tag and length octets are
6065 already assumed to have been read in and checked. These
6066 are needed because all other string types have virtually
6067 identical handling apart from the tag. By having versions
6068 of the ASN1 functions that just operate on content octets
6069 IMPLICIT tagging can be handled properly. It also allows
6070 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6071 and ASN1_INTEGER are identical apart from the tag.
6074 *) Change the handling of OID objects as follows:
6076 - New object identifiers are inserted in objects.txt, following
6077 the syntax given in objects.README.
6078 - objects.pl is used to process obj_mac.num and create a new
6080 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6083 This is currently kind of a hack, and the perl code in objects.pl
6084 isn't very elegant, but it works as I intended. The simplest way
6085 to check that it worked correctly is to look in obj_dat.h and
6086 check the array nid_objs and make sure the objects haven't moved
6087 around (this is important!). Additions are OK, as well as
6088 consistent name changes.
6091 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6094 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6095 The given file adds to whatever has already been seeded into the
6096 random pool through the RANDFILE configuration file option or
6097 environment variable, or the default random state file.
6100 *) mkstack.pl now sorts each macro group into lexical order.
6101 Previously the output order depended on the order the files
6102 appeared in the directory, resulting in needless rewriting
6106 *) Patches to make OpenSSL compile under Win32 again. Mostly
6107 work arounds for the VC++ problem that it treats func() as
6108 func(void). Also stripped out the parts of mkdef.pl that
6109 added extra typesafe functions: these no longer exist.
6112 *) Reorganisation of the stack code. The macros are now all
6113 collected in safestack.h . Each macro is defined in terms of
6114 a "stack macro" of the form SKM_<name>(type, a, b). The
6115 DEBUG_SAFESTACK is now handled in terms of function casts,
6116 this has the advantage of retaining type safety without the
6117 use of additional functions. If DEBUG_SAFESTACK is not defined
6118 then the non typesafe macros are used instead. Also modified the
6119 mkstack.pl script to handle the new form. Needs testing to see
6120 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6121 the default if no major problems. Similar behaviour for ASN1_SET_OF
6122 and PKCS12_STACK_OF.
6125 *) When some versions of IIS use the 'NET' form of private key the
6126 key derivation algorithm is different. Normally MD5(password) is
6127 used as a 128 bit RC4 key. In the modified case
6128 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6129 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6130 as the old Netscape_RSA functions except they have an additional
6131 'sgckey' parameter which uses the modified algorithm. Also added
6132 an -sgckey command line option to the rsa utility. Thanks to
6133 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6134 algorithm to openssl-dev.
6137 *) The evp_local.h macros were using 'c.##kname' which resulted in
6138 invalid expansion on some systems (SCO 5.0.5 for example).
6139 Corrected to 'c.kname'.
6140 [Phillip Porch <root@theporch.com>]
6142 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6143 a STACK of email addresses from a certificate or request, these look
6144 in the subject name and the subject alternative name extensions and
6145 omit any duplicate addresses.
6148 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6149 This makes DSA verification about 2 % faster.
6152 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6153 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6154 plus overhead for 1024 bit moduli).
6155 This makes exponentiations about 0.5 % faster for 1024 bit
6156 exponents (as measured by "openssl speed rsa2048").
6159 *) Rename memory handling macros to avoid conflicts with other
6161 Malloc => OPENSSL_malloc
6162 Malloc_locked => OPENSSL_malloc_locked
6163 Realloc => OPENSSL_realloc
6164 Free => OPENSSL_free
6167 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6168 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6171 *) CygWin32 support.
6172 [John Jarvie <jjarvie@newsguy.com>]
6174 *) The type-safe stack code has been rejigged. It is now only compiled
6175 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6176 by default all type-specific stack functions are "#define"d back to
6177 standard stack functions. This results in more streamlined output
6178 but retains the type-safety checking possibilities of the original
6182 *) The STACK code has been cleaned up, and certain type declarations
6183 that didn't make a lot of sense have been brought in line. This has
6184 also involved a cleanup of sorts in safestack.h to more correctly
6185 map type-safe stack functions onto their plain stack counterparts.
6186 This work has also resulted in a variety of "const"ifications of
6187 lots of the code, especially "_cmp" operations which should normally
6188 be prototyped with "const" parameters anyway.
6191 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6192 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6193 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6194 where all of 'md' is used each time the PRNG is used, but 'state'
6195 is used only indexed by a cyclic counter. As entropy may not be
6196 well distributed from the beginning, 'md' is important as a
6197 chaining variable. However, the output function chains only half
6198 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6199 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6200 in all of 'state' being rewritten, with the new values depending
6201 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6204 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6205 the handshake is continued after ssl_verify_cert_chain();
6206 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6207 can lead to 'unexplainable' connection aborts later.
6208 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6210 *) Major EVP API cipher revision.
6211 Add hooks for extra EVP features. This allows various cipher
6212 parameters to be set in the EVP interface. Support added for variable
6213 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6214 setting of RC2 and RC5 parameters.
6216 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6219 Remove lots of duplicated code from the EVP library. For example *every*
6220 cipher init() function handles the 'iv' in the same way according to the
6221 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6222 for CFB and OFB modes they zero ctx->num.
6224 New functionality allows removal of S/MIME code RC2 hack.
6226 Most of the routines have the same form and so can be declared in terms
6229 By shifting this to the top level EVP_CipherInit() it can be removed from
6230 all individual ciphers. If the cipher wants to handle IVs or keys
6231 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6234 Change lots of functions like EVP_EncryptUpdate() to now return a
6235 value: although software versions of the algorithms cannot fail
6236 any installed hardware versions can.
6239 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6240 this option is set, tolerate broken clients that send the negotiated
6241 protocol version number instead of the requested protocol version
6245 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6246 i.e. non-zero for export ciphersuites, zero otherwise.
6247 Previous versions had this flag inverted, inconsistent with
6248 rsa_tmp_cb (..._TMP_RSA_CB).
6249 [Bodo Moeller; problem reported by Amit Chopra]
6251 *) Add missing DSA library text string. Work around for some IIS
6252 key files with invalid SEQUENCE encoding.
6255 *) Add a document (doc/standards.txt) that list all kinds of standards
6256 and so on that are implemented in OpenSSL.
6259 *) Enhance c_rehash script. Old version would mishandle certificates
6260 with the same subject name hash and wouldn't handle CRLs at all.
6261 Added -fingerprint option to crl utility, to support new c_rehash
6265 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6268 *) Fix for SSL server purpose checking. Server checking was
6269 rejecting certificates which had extended key usage present
6270 but no ssl client purpose.
6271 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6273 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6274 is a little unclear about how a blank password is handled.
6275 Since the password in encoded as a BMPString with terminating
6276 double NULL a zero length password would end up as just the
6277 double NULL. However no password at all is different and is
6278 handled differently in the PKCS#12 key generation code. NS
6279 treats a blank password as zero length. MSIE treats it as no
6280 password on export: but it will try both on import. We now do
6281 the same: PKCS12_parse() tries zero length and no password if
6282 the password is set to "" or NULL (NULL is now a valid password:
6283 it wasn't before) as does the pkcs12 application.
6286 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6287 perror when PEM_read_bio_X509_REQ fails, the error message must
6288 be obtained from the error queue.
6291 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6292 it in ERR_remove_state if appropriate, and change ERR_get_state
6293 accordingly to avoid race conditions (this is necessary because
6294 thread_hash is no longer constant once set).
6297 *) Bugfix for linux-elf makefile.one.
6300 *) RSA_get_default_method() will now cause a default
6301 RSA_METHOD to be chosen if one doesn't exist already.
6302 Previously this was only set during a call to RSA_new()
6303 or RSA_new_method(NULL) meaning it was possible for
6304 RSA_get_default_method() to return NULL.
6307 *) Added native name translation to the existing DSO code
6308 that will convert (if the flag to do so is set) filenames
6309 that are sufficiently small and have no path information
6310 into a canonical native form. Eg. "blah" converted to
6311 "libblah.so" or "blah.dll" etc.
6314 *) New function ERR_error_string_n(e, buf, len) which is like
6315 ERR_error_string(e, buf), but writes at most 'len' bytes
6316 including the 0 terminator. For ERR_error_string_n, 'buf'
6318 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6320 *) CONF library reworked to become more general. A new CONF
6321 configuration file reader "class" is implemented as well as a
6322 new functions (NCONF_*, for "New CONF") to handle it. The now
6323 old CONF_* functions are still there, but are reimplemented to
6324 work in terms of the new functions. Also, a set of functions
6325 to handle the internal storage of the configuration data is
6326 provided to make it easier to write new configuration file
6327 reader "classes" (I can definitely see something reading a
6328 configuration file in XML format, for example), called _CONF_*,
6329 or "the configuration storage API"...
6331 The new configuration file reading functions are:
6333 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6334 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6336 NCONF_default, NCONF_WIN32
6338 NCONF_dump_fp, NCONF_dump_bio
6340 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6341 NCONF_new creates a new CONF object. This works in the same way
6342 as other interfaces in OpenSSL, like the BIO interface.
6343 NCONF_dump_* dump the internal storage of the configuration file,
6344 which is useful for debugging. All other functions take the same
6345 arguments as the old CONF_* functions wth the exception of the
6346 first that must be a `CONF *' instead of a `LHASH *'.
6348 To make it easer to use the new classes with the old CONF_* functions,
6349 the function CONF_set_default_method is provided.
6352 *) Add '-tls1' option to 'openssl ciphers', which was already
6353 mentioned in the documentation but had not been implemented.
6354 (This option is not yet really useful because even the additional
6355 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6358 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6359 OpenSSL-based applications) load shared libraries and bind to
6360 them in a portable way.
6361 [Geoff Thorpe, with contributions from Richard Levitte]
6363 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6365 *) Make sure _lrotl and _lrotr are only used with MSVC.
6367 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6368 (the default implementation of RAND_status).
6370 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6371 to '-clrext' (= clear extensions), as intended and documented.
6372 [Bodo Moeller; inconsistency pointed out by Michael Attili
6375 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6376 was larger than the MD block size.
6377 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6379 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6380 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6381 using the passed key: if the passed key was a private key the result
6382 of X509_print(), for example, would be to print out all the private key
6386 *) des_quad_cksum() byte order bug fix.
6387 [Ulf Möller, using the problem description in krb4-0.9.7, where
6388 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6390 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6392 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6394 *) For easily testing in shell scripts whether some command
6395 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6396 returns with exit code 0 iff no command of the given name is available.
6397 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6398 the output goes to stdout and nothing is printed to stderr.
6399 Additional arguments are always ignored.
6401 Since for each cipher there is a command of the same name,
6402 the 'no-cipher' compilation switches can be tested this way.
6404 ('openssl no-XXX' is not able to detect pseudo-commands such
6405 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6408 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6411 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6412 is set; it will be thrown away anyway because each handshake creates
6414 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6415 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6416 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6417 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6420 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6421 'Q' and 'R' lose their special meanings (quit/renegotiate).
6422 This is part of what -quiet does; unlike -quiet, -ign_eof
6423 does not suppress any output.
6426 *) Add compatibility options to the purpose and trust code. The
6427 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6428 accepts a certificate or CA, this was the previous behaviour,
6429 with all the associated security issues.
6431 X509_TRUST_COMPAT is the old trust behaviour: only and
6432 automatically trust self signed roots in certificate store. A
6433 new trust setting X509_TRUST_DEFAULT is used to specify that
6434 a purpose has no associated trust setting and it should instead
6435 use the value in the default purpose.
6438 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6439 and fix a memory leak.
6442 *) In util/mkerr.pl (which implements 'make errors'), preserve
6443 reason strings from the previous version of the .c file, as
6444 the default to have only downcase letters (and digits) in
6445 automatically generated reasons codes is not always appropriate.
6448 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6449 using strerror. Previously, ERR_reason_error_string() returned
6450 library names as reason strings for SYSerr; but SYSerr is a special
6451 case where small numbers are errno values, not library numbers.
6454 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6455 converts DSA parameters into DH parameters. (When creating parameters,
6456 DSA_generate_parameters is used.)
6459 *) Include 'length' (recommended exponent length) in C code generated
6460 by 'openssl dhparam -C'.
6463 *) The second argument to set_label in perlasm was already being used
6464 so couldn't be used as a "file scope" flag. Moved to third argument
6468 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6469 instead of RAND_bytes for encryption IVs and salts.
6472 *) Include RAND_status() into RAND_METHOD instead of implementing
6473 it only for md_rand.c Otherwise replacing the PRNG by calling
6474 RAND_set_rand_method would be impossible.
6477 *) Don't let DSA_generate_key() enter an infinite loop if the random
6478 number generation fails.
6481 *) New 'rand' application for creating pseudo-random output.
6484 *) Added configuration support for Linux/IA64
6485 [Rolf Haberrecker <rolf@suse.de>]
6487 *) Assembler module support for Mingw32.
6490 *) Shared library support for HPUX (in shlib/).
6491 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6493 *) Shared library support for Solaris gcc.
6494 [Lutz Behnke <behnke@trustcenter.de>]
6496 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6498 *) PKCS7_encrypt() was adding text MIME headers twice because they
6499 were added manually and by SMIME_crlf_copy().
6502 *) In bntest.c don't call BN_rand with zero bits argument.
6503 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6505 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6506 case was implemented. This caused BN_div_recp() to fail occasionally.
6509 *) Add an optional second argument to the set_label() in the perl
6510 assembly language builder. If this argument exists and is set
6511 to 1 it signals that the assembler should use a symbol whose
6512 scope is the entire file, not just the current function. This
6513 is needed with MASM which uses the format label:: for this scope.
6514 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6516 *) Change the ASN1 types so they are typedefs by default. Before
6517 almost all types were #define'd to ASN1_STRING which was causing
6518 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6522 *) Change names of new functions to the new get1/get0 naming
6523 convention: After 'get1', the caller owns a reference count
6524 and has to call ..._free; 'get0' returns a pointer to some
6525 data structure without incrementing reference counters.
6526 (Some of the existing 'get' functions increment a reference
6527 counter, some don't.)
6528 Similarly, 'set1' and 'add1' functions increase reference
6529 counters or duplicate objects.
6532 *) Allow for the possibility of temp RSA key generation failure:
6533 the code used to assume it always worked and crashed on failure.
6536 *) Fix potential buffer overrun problem in BIO_printf().
6537 [Ulf Möller, using public domain code by Patrick Powell; problem
6538 pointed out by David Sacerdote <das33@cornell.edu>]
6540 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6541 RAND_egd() and RAND_status(). In the command line application,
6542 the EGD socket can be specified like a seed file using RANDFILE
6546 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6547 Some CAs (e.g. Verisign) distribute certificates in this form.
6550 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6551 list to exclude them. This means that no special compilation option
6552 is needed to use anonymous DH: it just needs to be included in the
6556 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6557 EVP_MD_type. The old functionality is available in a new macro called
6558 EVP_MD_md(). Change code that uses it and update docs.
6561 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6562 where the 'void *' argument is replaced by a function pointer argument.
6563 Previously 'void *' was abused to point to functions, which works on
6564 many platforms, but is not correct. As these functions are usually
6565 called by macros defined in OpenSSL header files, most source code
6566 should work without changes.
6569 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6570 sections with information on -D... compiler switches used for
6571 compiling the library so that applications can see them. To enable
6572 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6573 must be defined. E.g.,
6574 #define OPENSSL_ALGORITHM_DEFINES
6575 #include <openssl/opensslconf.h>
6576 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6577 [Richard Levitte, Ulf and Bodo Möller]
6579 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6583 *) Change the 'other' type in certificate aux info to a STACK_OF
6584 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6585 the required ASN1 format: arbitrary types determined by an OID.
6588 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6589 argument to 'req'. This is not because the function is newer or
6590 better than others it just uses the work 'NEW' in the certificate
6591 request header lines. Some software needs this.
6594 *) Reorganise password command line arguments: now passwords can be
6595 obtained from various sources. Delete the PEM_cb function and make
6596 it the default behaviour: i.e. if the callback is NULL and the
6597 usrdata argument is not NULL interpret it as a null terminated pass
6598 phrase. If usrdata and the callback are NULL then the pass phrase
6599 is prompted for as usual.
6602 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6603 the support is automatically enabled. The resulting binaries will
6604 autodetect the card and use it if present.
6605 [Ben Laurie and Compaq Inc.]
6607 *) Work around for Netscape hang bug. This sends certificate request
6608 and server done in one record. Since this is perfectly legal in the
6609 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6610 the bugs/SSLv3 entry for more info.
6613 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6616 *) Add -rand argument to smime and pkcs12 applications and read/write
6620 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6623 *) Add command line password options to the remaining applications.
6626 *) Bug fix for BN_div_recp() for numerators with an even number of
6630 *) More tests in bntest.c, and changed test_bn output.
6633 *) ./config recognizes MacOS X now.
6636 *) Bug fix for BN_div() when the first words of num and divsor are
6637 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6640 *) Add support for various broken PKCS#8 formats, and command line
6641 options to produce them.
6644 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6645 get temporary BIGNUMs from a BN_CTX.
6648 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6652 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6653 include a #define from the old name to the new. The original intent
6654 was that statically linked binaries could for example just call
6655 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6656 link with digests. This never worked becayse SSLeay_add_all_digests()
6657 and SSLeay_add_all_ciphers() were in the same source file so calling
6658 one would link with the other. They are now in separate source files.
6661 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6664 *) Use a less unusual form of the Miller-Rabin primality test (it used
6665 a binary algorithm for exponentiation integrated into the Miller-Rabin
6666 loop, our standard modexp algorithms are faster).
6669 *) Support for the EBCDIC character set completed.
6670 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6672 *) Source code cleanups: use const where appropriate, eliminate casts,
6673 use void * instead of char * in lhash.
6676 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6677 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6678 this the server could overwrite ephemeral keys that the client
6682 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6683 using 50 iterations of the Rabin-Miller test.
6685 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6686 iterations of the Rabin-Miller test as required by the appendix
6687 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6688 As BN_is_prime_fasttest includes trial division, DSA parameter
6689 generation becomes much faster.
6691 This implies a change for the callback functions in DSA_is_prime
6692 and DSA_generate_parameters: The callback function is called once
6693 for each positive witness in the Rabin-Miller test, not just
6694 occasionally in the inner loop; and the parameters to the
6695 callback function now provide an iteration count for the outer
6696 loop rather than for the current invocation of the inner loop.
6697 DSA_generate_parameters additionally can call the callback
6698 function with an 'iteration count' of -1, meaning that a
6699 candidate has passed the trial division test (when q is generated
6700 from an application-provided seed, trial division is skipped).
6703 *) New function BN_is_prime_fasttest that optionally does trial
6704 division before starting the Rabin-Miller test and has
6705 an additional BN_CTX * argument (whereas BN_is_prime always
6706 has to allocate at least one BN_CTX).
6707 'callback(1, -1, cb_arg)' is called when a number has passed the
6708 trial division stage.
6711 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6715 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6718 *) New function BN_pseudo_rand().
6721 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6722 bignum version of BN_from_montgomery() with the working code from
6723 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6727 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6728 made it impossible to use the same SSL_SESSION data structure in
6729 SSL2 clients in multiple threads.
6732 *) The return value of RAND_load_file() no longer counts bytes obtained
6733 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6734 to seed the PRNG (previously an explicit byte count was required).
6735 [Ulf Möller, Bodo Möller]
6737 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6738 used (char *) instead of (void *) and had casts all over the place.
6741 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6744 *) Retain source code compatibility for BN_prime_checks macro:
6745 BN_is_prime(..., BN_prime_checks, ...) now uses
6746 BN_prime_checks_for_size to determine the appropriate number of
6747 Rabin-Miller iterations.
6750 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6751 DH_CHECK_P_NOT_SAFE_PRIME.
6752 (Check if this is true? OpenPGP calls them "strong".)
6755 *) Merge the functionality of "dh" and "gendh" programs into a new program
6756 "dhparam". The old programs are retained for now but will handle DH keys
6757 (instead of parameters) in future.
6760 *) Make the ciphers, s_server and s_client programs check the return values
6761 when a new cipher list is set.
6764 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6765 ciphers. Before when the 56bit ciphers were enabled the sorting was
6768 The syntax for the cipher sorting has been extended to support sorting by
6769 cipher-strength (using the strength_bits hard coded in the tables).
6770 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6772 Fix a bug in the cipher-command parser: when supplying a cipher command
6773 string with an "undefined" symbol (neither command nor alphanumeric
6774 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6775 an error is flagged.
6777 Due to the strength-sorting extension, the code of the
6778 ssl_create_cipher_list() function was completely rearranged. I hope that
6779 the readability was also increased :-)
6780 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6782 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6783 for the first serial number and places 2 in the serial number file. This
6784 avoids problems when the root CA is created with serial number zero and
6785 the first user certificate has the same issuer name and serial number
6789 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6790 the new code. Add documentation for this stuff.
6793 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6794 X509_*() to X509at_*() on the grounds that they don't handle X509
6795 structures and behave in an analagous way to the X509v3 functions:
6796 they shouldn't be called directly but wrapper functions should be used
6799 So we also now have some wrapper functions that call the X509at functions
6800 when passed certificate requests. (TO DO: similar things can be done with
6801 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6802 things. Some of these need some d2i or i2d and print functionality
6803 because they handle more complex structures.)
6806 *) Add missing #ifndefs that caused missing symbols when building libssl
6807 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6808 NO_RSA in ssl/s2*.c.
6809 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6811 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6812 has a return value which indicates the quality of the random data
6813 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6814 error queue. New function RAND_pseudo_bytes() generates output that is
6815 guaranteed to be unique but not unpredictable. RAND_add is like
6816 RAND_seed, but takes an extra argument for an entropy estimate
6817 (RAND_seed always assumes full entropy).
6820 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6821 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6822 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6823 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6824 false-positive rate of at most 2^-80 for random input.
6827 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6830 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6831 in the 0.9.5 release), this returns the chain
6832 from an X509_CTX structure with a dup of the stack and all
6833 the X509 reference counts upped: so the stack will exist
6834 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6837 Also make SSL_SESSION_print() print out the verify return
6841 *) Add manpage for the pkcs12 command. Also change the default
6842 behaviour so MAC iteration counts are used unless the new
6843 -nomaciter option is used. This improves file security and
6844 only older versions of MSIE (4.0 for example) need it.
6847 *) Honor the no-xxx Configure options when creating .DEF files.
6850 *) Add PKCS#10 attributes to field table: challengePassword,
6851 unstructuredName and unstructuredAddress. These are taken from
6852 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6853 international characters are used.
6855 More changes to X509_ATTRIBUTE code: allow the setting of types
6856 based on strings. Remove the 'loc' parameter when adding
6857 attributes because these will be a SET OF encoding which is sorted
6861 *) Initial changes to the 'req' utility to allow request generation
6862 automation. This will allow an application to just generate a template
6863 file containing all the field values and have req construct the
6866 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6867 used all over the place including certificate requests and PKCS#7
6868 structures. They are currently handled manually where necessary with
6869 some primitive wrappers for PKCS#7. The new functions behave in a
6870 manner analogous to the X509 extension functions: they allow
6871 attributes to be looked up by NID and added.
6873 Later something similar to the X509V3 code would be desirable to
6874 automatically handle the encoding, decoding and printing of the
6875 more complex types. The string types like challengePassword can
6876 be handled by the string table functions.
6878 Also modified the multi byte string table handling. Now there is
6879 a 'global mask' which masks out certain types. The table itself
6880 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6881 is useful when for example there is only one permissible type
6882 (as in countryName) and using the mask might result in no valid
6886 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6887 SSL_get_peer_finished to allow applications to obtain the latest
6888 Finished messages sent to the peer or expected from the peer,
6889 respectively. (SSL_get_peer_finished is usually the Finished message
6890 actually received from the peer, otherwise the protocol will be aborted.)
6892 As the Finished message are message digests of the complete handshake
6893 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6894 be used for external authentication procedures when the authentication
6895 provided by SSL/TLS is not desired or is not enough.
6898 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6899 the host supports BWX extension and if Compaq C is present on the
6900 $PATH. Just exploiting of the BWX extension results in 20-30%
6901 performance kick for some algorithms, e.g. DES and RC4 to mention
6902 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6906 *) Add support for MS "fast SGC". This is arguably a violation of the
6907 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6908 weak crypto and after checking the certificate is SGC a second one
6909 with strong crypto. MS SGC stops the first handshake after receiving
6910 the server certificate message and sends a second client hello. Since
6911 a server will typically do all the time consuming operations before
6912 expecting any further messages from the client (server key exchange
6913 is the most expensive) there is little difference between the two.
6915 To get OpenSSL to support MS SGC we have to permit a second client
6916 hello message after we have sent server done. In addition we have to
6917 reset the MAC if we do get this second client hello.
6920 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6921 if a DER encoded private key is RSA or DSA traditional format. Changed
6922 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6923 format DER encoded private key. Newer code should use PKCS#8 format which
6924 has the key type encoded in the ASN1 structure. Added DER private key
6925 support to pkcs8 application.
6928 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6929 ciphersuites has been selected (as required by the SSL 3/TLS 1
6930 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6931 is set, we interpret this as a request to violate the specification
6932 (the worst that can happen is a handshake failure, and 'correct'
6933 behaviour would result in a handshake failure anyway).
6936 *) In SSL_CTX_add_session, take into account that there might be multiple
6937 SSL_SESSION structures with the same session ID (e.g. when two threads
6938 concurrently obtain them from an external cache).
6939 The internal cache can handle only one SSL_SESSION with a given ID,
6940 so if there's a conflict, we now throw out the old one to achieve
6944 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6945 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6946 some routines that use cipher OIDs: some ciphers do not have OIDs
6947 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6951 *) Simplify the trust setting structure and code. Now we just have
6952 two sequences of OIDs for trusted and rejected settings. These will
6953 typically have values the same as the extended key usage extension
6954 and any application specific purposes.
6956 The trust checking code now has a default behaviour: it will just
6957 check for an object with the same NID as the passed id. Functions can
6958 be provided to override either the default behaviour or the behaviour
6959 for a given id. SSL client, server and email already have functions
6960 in place for compatibility: they check the NID and also return "trusted"
6961 if the certificate is self signed.
6964 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6965 traditional format into an EVP_PKEY structure.
6968 *) Add a password callback function PEM_cb() which either prompts for
6969 a password if usr_data is NULL or otherwise assumes it is a null
6970 terminated password. Allow passwords to be passed on command line
6971 environment or config files in a few more utilities.
6974 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6975 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6976 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6977 Update documentation.
6980 *) Support for ASN1 "NULL" type. This could be handled before by using
6981 ASN1_TYPE but there wasn't any function that would try to read a NULL
6982 and produce an error if it couldn't. For compatibility we also have
6983 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6984 don't allocate anything because they don't need to.
6987 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6989 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6991 *) Rebuild of the memory allocation routines used by OpenSSL code and
6992 possibly others as well. The purpose is to make an interface that
6993 provide hooks so anyone can build a separate set of allocation and
6994 deallocation routines to be used by OpenSSL, for example memory
6995 pool implementations, or something else, which was previously hard
6996 since Malloc(), Realloc() and Free() were defined as macros having
6997 the values malloc, realloc and free, respectively (except for Win32
6998 compilations). The same is provided for memory debugging code.
6999 OpenSSL already comes with functionality to find memory leaks, but
7000 this gives people a chance to debug other memory problems.
7002 With these changes, a new set of functions and macros have appeared:
7004 CRYPTO_set_mem_debug_functions() [F]
7005 CRYPTO_get_mem_debug_functions() [F]
7006 CRYPTO_dbg_set_options() [F]
7007 CRYPTO_dbg_get_options() [F]
7008 CRYPTO_malloc_debug_init() [M]
7010 The memory debug functions are NULL by default, unless the library
7011 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7012 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7013 gives the standard debugging functions that come with OpenSSL) or
7014 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7015 provided by the library user) must be used. When the standard
7016 debugging functions are used, CRYPTO_dbg_set_options can be used to
7017 request additional information:
7018 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7019 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7021 Also, things like CRYPTO_set_mem_functions will always give the
7022 expected result (the new set of functions is used for allocation
7023 and deallocation) at all times, regardless of platform and compiler
7026 To finish it up, some functions that were never use in any other
7027 way than through macros have a new API and new semantic:
7030 CRYPTO_dbg_realloc()
7033 All macros of value have retained their old syntax.
7034 [Richard Levitte and Bodo Moeller]
7036 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7037 ordering of SMIMECapabilities wasn't in "strength order" and there
7038 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7042 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7043 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7044 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7046 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7047 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7048 functionality to handle multipart/signed properly) and a utility
7049 called 'smime' to call all this stuff. This is based on code I
7050 originally wrote for Celo who have kindly allowed it to be
7051 included in OpenSSL.
7054 *) Add variants des_set_key_checked and des_set_key_unchecked of
7055 des_set_key (aka des_key_sched). Global variable des_check_key
7056 decides which of these is called by des_set_key; this way
7057 des_check_key behaves as it always did, but applications and
7058 the library itself, which was buggy for des_check_key == 1,
7059 have a cleaner way to pick the version they need.
7062 *) New function PKCS12_newpass() which changes the password of a
7066 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7067 dynamic mix. In both cases the ids can be used as an index into the
7068 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7069 functions so they accept a list of the field values and the
7070 application doesn't need to directly manipulate the X509_TRUST
7074 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7078 *) Modify the way the V3 extension code looks up extensions. This now
7079 works in a similar way to the object code: we have some "standard"
7080 extensions in a static table which is searched with OBJ_bsearch()
7081 and the application can add dynamic ones if needed. The file
7082 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7083 updated whenever a new extension is added to the core code and kept
7084 in ext_nid order. There is a simple program 'tabtest.c' which checks
7085 this. New extensions are not added too often so this file can readily
7086 be maintained manually.
7088 There are two big advantages in doing things this way. The extensions
7089 can be looked up immediately and no longer need to be "added" using
7090 X509V3_add_standard_extensions(): this function now does nothing.
7091 [Side note: I get *lots* of email saying the extension code doesn't
7092 work because people forget to call this function]
7093 Also no dynamic allocation is done unless new extensions are added:
7094 so if we don't add custom extensions there is no need to call
7095 X509V3_EXT_cleanup().
7098 *) Modify enc utility's salting as follows: make salting the default. Add a
7099 magic header, so unsalted files fail gracefully instead of just decrypting
7100 to garbage. This is because not salting is a big security hole, so people
7101 should be discouraged from doing it.
7104 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7105 digest to be passed on the command line but it only used this
7106 parameter when signing a certificate. Modified so all relevant
7107 operations are affected by the digest parameter including the
7108 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7109 DSA key was used because it didn't fix the digest.
7112 *) Initial certificate chain verify code. Currently tests the untrusted
7113 certificates for consistency with the verify purpose (which is set
7114 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7116 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7117 this is because it will reject chains with invalid extensions whereas
7118 every previous version of OpenSSL and SSLeay made no checks at all.
7120 Trust code: checks the root CA for the relevant trust settings. Trust
7121 settings have an initial value consistent with the verify purpose: e.g.
7122 if the verify purpose is for SSL client use it expects the CA to be
7123 trusted for SSL client use. However the default value can be changed to
7124 permit custom trust settings: one example of this would be to only trust
7125 certificates from a specific "secure" set of CAs.
7127 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7128 which should be used for version portability: especially since the
7129 verify structure is likely to change more often now.
7131 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7132 to set them. If not set then assume SSL clients will verify SSL servers
7135 Two new options to the verify program: -untrusted allows a set of
7136 untrusted certificates to be passed in and -purpose which sets the
7137 intended purpose of the certificate. If a purpose is set then the
7138 new chain verify code is used to check extension consistency.
7141 *) Support for the authority information access extension.
7144 *) Modify RSA and DSA PEM read routines to transparently handle
7145 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7146 public keys in a format compatible with certificate
7147 SubjectPublicKeyInfo structures. Unfortunately there were already
7148 functions called *_PublicKey_* which used various odd formats so
7149 these are retained for compatibility: however the DSA variants were
7150 never in a public release so they have been deleted. Changed dsa/rsa
7151 utilities to handle the new format: note no releases ever handled public
7152 keys so we should be OK.
7154 The primary motivation for this change is to avoid the same fiasco
7155 that dogs private keys: there are several incompatible private key
7156 formats some of which are standard and some OpenSSL specific and
7157 require various evil hacks to allow partial transparent handling and
7158 even then it doesn't work with DER formats. Given the option anything
7159 other than PKCS#8 should be dumped: but the other formats have to
7160 stay in the name of compatibility.
7162 With public keys and the benefit of hindsight one standard format
7163 is used which works with EVP_PKEY, RSA or DSA structures: though
7164 it clearly returns an error if you try to read the wrong kind of key.
7166 Added a -pubkey option to the 'x509' utility to output the public key.
7167 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7168 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7169 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7170 that do the same as the EVP_PKEY_assign_*() except they up the
7171 reference count of the added key (they don't "swallow" the
7175 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7176 CRLs would fail if the file contained no certificates or no CRLs:
7177 added a new function to read in both types and return the number
7178 read: this means that if none are read it will be an error. The
7179 DER versions of the certificate and CRL reader would always fail
7180 because it isn't possible to mix certificates and CRLs in DER format
7181 without choking one or the other routine. Changed this to just read
7182 a certificate: this is the best we can do. Also modified the code
7183 in apps/verify.c to take notice of return codes: it was previously
7184 attempting to read in certificates from NULL pointers and ignoring
7185 any errors: this is one reason why the cert and CRL reader seemed
7186 to work. It doesn't check return codes from the default certificate
7187 routines: these may well fail if the certificates aren't installed.
7190 *) Code to support otherName option in GeneralName.
7193 *) First update to verify code. Change the verify utility
7194 so it warns if it is passed a self signed certificate:
7195 for consistency with the normal behaviour. X509_verify
7196 has been modified to it will now verify a self signed
7197 certificate if *exactly* the same certificate appears
7198 in the store: it was previously impossible to trust a
7199 single self signed certificate. This means that:
7200 openssl verify ss.pem
7201 now gives a warning about a self signed certificate but
7202 openssl verify -CAfile ss.pem ss.pem
7206 *) For servers, store verify_result in SSL_SESSION data structure
7207 (and add it to external session representation).
7208 This is needed when client certificate verifications fails,
7209 but an application-provided verification callback (set by
7210 SSL_CTX_set_cert_verify_callback) allows accepting the session
7211 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7212 but returns 1): When the session is reused, we have to set
7213 ssl->verify_result to the appropriate error code to avoid
7215 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7217 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7218 case in PKCS7_dataInit() where the signed PKCS7 structure
7219 didn't contain any existing data because it was being created.
7220 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7222 *) Add a salt to the key derivation routines in enc.c. This
7223 forms the first 8 bytes of the encrypted file. Also add a
7224 -S option to allow a salt to be input on the command line.
7227 *) New function X509_cmp(). Oddly enough there wasn't a function
7228 to compare two certificates. We do this by working out the SHA1
7229 hash and comparing that. X509_cmp() will be needed by the trust
7233 *) SSL_get1_session() is like SSL_get_session(), but increments
7234 the reference count in the SSL_SESSION returned.
7235 [Geoff Thorpe <geoff@eu.c2.net>]
7237 *) Fix for 'req': it was adding a null to request attributes.
7238 Also change the X509_LOOKUP and X509_INFO code to handle
7239 certificate auxiliary information.
7242 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7246 *) Add the possibility to add extra information to the memory leak
7247 detecting output, to form tracebacks, showing from where each
7248 allocation was originated: CRYPTO_push_info("constant string") adds
7249 the string plus current file name and line number to a per-thread
7250 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7251 is like calling CYRPTO_pop_info() until the stack is empty.
7252 Also updated memory leak detection code to be multi-thread-safe.
7255 *) Add options -text and -noout to pkcs7 utility and delete the
7256 encryption options which never did anything. Update docs.
7259 *) Add options to some of the utilities to allow the pass phrase
7260 to be included on either the command line (not recommended on
7261 OSes like Unix) or read from the environment. Update the
7262 manpages and fix a few bugs.
7265 *) Add a few manpages for some of the openssl commands.
7268 *) Fix the -revoke option in ca. It was freeing up memory twice,
7269 leaking and not finding already revoked certificates.
7272 *) Extensive changes to support certificate auxiliary information.
7273 This involves the use of X509_CERT_AUX structure and X509_AUX
7274 functions. An X509_AUX function such as PEM_read_X509_AUX()
7275 can still read in a certificate file in the usual way but it
7276 will also read in any additional "auxiliary information". By
7277 doing things this way a fair degree of compatibility can be
7278 retained: existing certificates can have this information added
7279 using the new 'x509' options.
7281 Current auxiliary information includes an "alias" and some trust
7282 settings. The trust settings will ultimately be used in enhanced
7283 certificate chain verification routines: currently a certificate
7284 can only be trusted if it is self signed and then it is trusted
7288 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7289 The problem was that one of the replacement routines had not been working
7290 since SSLeay releases. For now the offending routine has been replaced
7291 with non-optimised assembler. Even so, this now gives around 95%
7292 performance improvement for 1024 bit RSA signs.
7295 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7296 handling. Most clients have the effective key size in bits equal to
7297 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7298 A few however don't do this and instead use the size of the decrypted key
7299 to determine the RC2 key length and the AlgorithmIdentifier to determine
7300 the effective key length. In this case the effective key length can still
7301 be 40 bits but the key length can be 168 bits for example. This is fixed
7302 by manually forcing an RC2 key into the EVP_PKEY structure because the
7303 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7304 the key length and effective key length are equal.
7307 *) Add a bunch of functions that should simplify the creation of
7308 X509_NAME structures. Now you should be able to do:
7309 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7310 and have it automatically work out the correct field type and fill in
7311 the structures. The more adventurous can try:
7312 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7313 and it will (hopefully) work out the correct multibyte encoding.
7316 *) Change the 'req' utility to use the new field handling and multibyte
7317 copy routines. Before the DN field creation was handled in an ad hoc
7318 way in req, ca, and x509 which was rather broken and didn't support
7319 BMPStrings or UTF8Strings. Since some software doesn't implement
7320 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7321 using the dirstring_type option. See the new comment in the default
7322 openssl.cnf for more info.
7325 *) Make crypto/rand/md_rand.c more robust:
7326 - Assure unique random numbers after fork().
7327 - Make sure that concurrent threads access the global counter and
7328 md serializably so that we never lose entropy in them
7329 or use exactly the same state in multiple threads.
7330 Access to the large state is not always serializable because
7331 the additional locking could be a performance killer, and
7332 md should be large enough anyway.
7335 *) New file apps/app_rand.c with commonly needed functionality
7336 for handling the random seed file.
7338 Use the random seed file in some applications that previously did not:
7340 dsaparam -genkey (which also ignored its '-rand' option),
7343 x509 (when signing).
7344 Except on systems with /dev/urandom, it is crucial to have a random
7345 seed file at least for key creation, DSA signing, and for DH exchanges;
7346 for RSA signatures we could do without one.
7348 gendh and gendsa (unlike genrsa) used to read only the first byte
7349 of each file listed in the '-rand' option. The function as previously
7350 found in genrsa is now in app_rand.c and is used by all programs
7351 that support '-rand'.
7354 *) In RAND_write_file, use mode 0600 for creating files;
7355 don't just chmod when it may be too late.
7358 *) Report an error from X509_STORE_load_locations
7359 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7362 *) New function ASN1_mbstring_copy() this copies a string in either
7363 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7364 into an ASN1_STRING type. A mask of permissible types is passed
7365 and it chooses the "minimal" type to use or an error if not type
7369 *) Add function equivalents to the various macros in asn1.h. The old
7370 macros are retained with an M_ prefix. Code inside the library can
7371 use the M_ macros. External code (including the openssl utility)
7372 should *NOT* in order to be "shared library friendly".
7375 *) Add various functions that can check a certificate's extensions
7376 to see if it usable for various purposes such as SSL client,
7377 server or S/MIME and CAs of these types. This is currently
7378 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7379 verification. Also added a -purpose flag to x509 utility to
7380 print out all the purposes.
7383 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7387 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7388 for, obtain and decode and extension and obtain its critical flag.
7389 This allows all the necessary extension code to be handled in a
7390 single function call.
7393 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7394 platforms. See crypto/rc4/rc4_enc.c for further details.
7397 *) New -noout option to asn1parse. This causes no output to be produced
7398 its main use is when combined with -strparse and -out to extract data
7399 from a file (which may not be in ASN.1 format).
7402 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7403 when producing the local key id.
7404 [Richard Levitte <levitte@stacken.kth.se>]
7406 *) New option -dhparam in s_server. This allows a DH parameter file to be
7407 stated explicitly. If it is not stated then it tries the first server
7408 certificate file. The previous behaviour hard coded the filename
7412 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7413 a public key to be input or output. For example:
7414 openssl rsa -in key.pem -pubout -out pubkey.pem
7415 Also added necessary DSA public key functions to handle this.
7418 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7419 in the message. This was handled by allowing
7420 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7421 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7423 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7424 to the end of the strings whereas this didn't. This would cause problems
7425 if strings read with d2i_ASN1_bytes() were later modified.
7426 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7428 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7429 data and it contains EOF it will end up returning an error. This is
7430 caused by input 46 bytes long. The cause is due to the way base64
7431 BIOs find the start of base64 encoded data. They do this by trying a
7432 trial decode on each line until they find one that works. When they
7433 do a flag is set and it starts again knowing it can pass all the
7434 data directly through the decoder. Unfortunately it doesn't reset
7435 the context it uses. This means that if EOF is reached an attempt
7436 is made to pass two EOFs through the context and this causes the
7437 resulting error. This can also cause other problems as well. As is
7438 usual with these problems it takes *ages* to find and the fix is
7439 trivial: move one line.
7440 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7442 *) Ugly workaround to get s_client and s_server working under Windows. The
7443 old code wouldn't work because it needed to select() on sockets and the
7444 tty (for keypresses and to see if data could be written). Win32 only
7445 supports select() on sockets so we select() with a 1s timeout on the
7446 sockets and then see if any characters are waiting to be read, if none
7447 are present then we retry, we also assume we can always write data to
7448 the tty. This isn't nice because the code then blocks until we've
7449 received a complete line of data and it is effectively polling the
7450 keyboard at 1s intervals: however it's quite a bit better than not
7451 working at all :-) A dedicated Windows application might handle this
7452 with an event loop for example.
7455 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7456 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7457 will be called when RSA_sign() and RSA_verify() are used. This is useful
7458 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7459 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7460 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7461 This necessitated the support of an extra signature type NID_md5_sha1
7462 for SSL signatures and modifications to the SSL library to use it instead
7463 of calling RSA_public_decrypt() and RSA_private_encrypt().
7466 *) Add new -verify -CAfile and -CApath options to the crl program, these
7467 will lookup a CRL issuers certificate and verify the signature in a
7468 similar way to the verify program. Tidy up the crl program so it
7469 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7470 less strict. It will now permit CRL extensions even if it is not
7471 a V2 CRL: this will allow it to tolerate some broken CRLs.
7474 *) Initialize all non-automatic variables each time one of the openssl
7475 sub-programs is started (this is necessary as they may be started
7476 multiple times from the "OpenSSL>" prompt).
7477 [Lennart Bang, Bodo Moeller]
7479 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7480 removing all other RSA functionality (this is what NO_RSA does). This
7481 is so (for example) those in the US can disable those operations covered
7482 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7486 *) Non-copying interface to BIO pairs.
7487 (still largely untested)
7490 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7491 ASCII string. This was handled independently in various places before.
7494 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7495 UTF8 strings a character at a time.
7498 *) Use client_version from client hello to select the protocol
7499 (s23_srvr.c) and for RSA client key exchange verification
7500 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7503 *) Add various utility functions to handle SPKACs, these were previously
7504 handled by poking round in the structure internals. Added new function
7505 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7506 print, verify and generate SPKACs. Based on an original idea from
7507 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7510 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7513 *) Allow the config file extension section to be overwritten on the
7514 command line. Based on an original idea from Massimiliano Pala
7515 <madwolf@comune.modena.it>. The new option is called -extensions
7516 and can be applied to ca, req and x509. Also -reqexts to override
7517 the request extensions in req and -crlexts to override the crl extensions
7521 *) Add new feature to the SPKAC handling in ca. Now you can include
7522 the same field multiple times by preceding it by "XXXX." for example:
7525 this is the same syntax as used in the req config file.
7528 *) Allow certificate extensions to be added to certificate requests. These
7529 are specified in a 'req_extensions' option of the req section of the
7530 config file. They can be printed out with the -text option to req but
7531 are otherwise ignored at present.
7534 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7535 data read consists of only the final block it would not decrypted because
7536 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7537 A misplaced 'break' also meant the decrypted final block might not be
7538 copied until the next read.
7541 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7542 a few extra parameters to the DH structure: these will be useful if
7543 for example we want the value of 'q' or implement X9.42 DH.
7546 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7547 provides hooks that allow the default DSA functions or functions on a
7548 "per key" basis to be replaced. This allows hardware acceleration and
7549 hardware key storage to be handled without major modification to the
7550 library. Also added low level modexp hooks and CRYPTO_EX structure and
7551 associated functions.
7554 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7555 as "read only": it can't be written to and the buffer it points to will
7556 not be freed. Reading from a read only BIO is much more efficient than
7557 a normal memory BIO. This was added because there are several times when
7558 an area of memory needs to be read from a BIO. The previous method was
7559 to create a memory BIO and write the data to it, this results in two
7560 copies of the data and an O(n^2) reading algorithm. There is a new
7561 function BIO_new_mem_buf() which creates a read only memory BIO from
7562 an area of memory. Also modified the PKCS#7 routines to use read only
7566 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7567 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7568 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7569 but a retry condition occured while trying to read the rest.
7572 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7573 NID_pkcs7_encrypted by default: this was wrong since this should almost
7574 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7575 the encrypted data type: this is a more sensible place to put it and it
7576 allows the PKCS#12 code to be tidied up that duplicated this
7580 *) Changed obj_dat.pl script so it takes its input and output files on
7581 the command line. This should avoid shell escape redirection problems
7585 *) Initial support for certificate extension requests, these are included
7586 in things like Xenroll certificate requests. Included functions to allow
7587 extensions to be obtained and added.
7590 *) -crlf option to s_client and s_server for sending newlines as
7591 CRLF (as required by many protocols).
7594 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7596 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7597 [Ralf S. Engelschall]
7599 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7600 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7602 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7606 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7607 DH parameters/keys (q is lost during that conversion, but the resulting
7608 DH parameters contain its length).
7610 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7611 much faster than DH_generate_parameters (which creates parameters
7612 where p = 2*q + 1), and also the smaller q makes DH computations
7613 much more efficient (160-bit exponentiation instead of 1024-bit
7614 exponentiation); so this provides a convenient way to support DHE
7615 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7616 utter importance to use
7617 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7619 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7620 when such DH parameters are used, because otherwise small subgroup
7621 attacks may become possible!
7624 *) Avoid memory leak in i2d_DHparams.
7627 *) Allow the -k option to be used more than once in the enc program:
7628 this allows the same encrypted message to be read by multiple recipients.
7631 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7632 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7633 it will always use the numerical form of the OID, even if it has a short
7637 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7638 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7639 otherwise bn_mod_exp was called. In the case of hardware keys for example
7640 no private key components need be present and it might store extra data
7641 in the RSA structure, which cannot be accessed from bn_mod_exp.
7642 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7643 private key operations.
7646 *) Added support for SPARC Linux.
7649 *) pem_password_cb function type incompatibly changed from
7650 typedef int pem_password_cb(char *buf, int size, int rwflag);
7652 ....(char *buf, int size, int rwflag, void *userdata);
7653 so that applications can pass data to their callbacks:
7654 The PEM[_ASN1]_{read,write}... functions and macros now take an
7655 additional void * argument, which is just handed through whenever
7656 the password callback is called.
7657 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7659 New function SSL_CTX_set_default_passwd_cb_userdata.
7661 Compatibility note: As many C implementations push function arguments
7662 onto the stack in reverse order, the new library version is likely to
7663 interoperate with programs that have been compiled with the old
7664 pem_password_cb definition (PEM_whatever takes some data that
7665 happens to be on the stack as its last argument, and the callback
7666 just ignores this garbage); but there is no guarantee whatsoever that
7669 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7670 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7671 problems not only on Windows, but also on some Unix platforms.
7672 To avoid problematic command lines, these definitions are now in an
7673 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7674 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7677 *) MIPS III/IV assembler module is reimplemented.
7680 *) More DES library cleanups: remove references to srand/rand and
7681 delete an unused file.
7684 *) Add support for the the free Netwide assembler (NASM) under Win32,
7685 since not many people have MASM (ml) and it can be hard to obtain.
7686 This is currently experimental but it seems to work OK and pass all
7687 the tests. Check out INSTALL.W32 for info.
7690 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7691 without temporary keys kept an extra copy of the server key,
7692 and connections with temporary keys did not free everything in case
7696 *) New function RSA_check_key and new openssl rsa option -check
7697 for verifying the consistency of RSA keys.
7698 [Ulf Moeller, Bodo Moeller]
7700 *) Various changes to make Win32 compile work:
7701 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7702 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7703 comparison" warnings.
7704 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7707 *) Add a debugging option to PKCS#5 v2 key generation function: when
7708 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7709 derived keys are printed to stderr.
7712 *) Copy the flags in ASN1_STRING_dup().
7713 [Roman E. Pavlov <pre@mo.msk.ru>]
7715 *) The x509 application mishandled signing requests containing DSA
7716 keys when the signing key was also DSA and the parameters didn't match.
7718 It was supposed to omit the parameters when they matched the signing key:
7719 the verifying software was then supposed to automatically use the CA's
7720 parameters if they were absent from the end user certificate.
7722 Omitting parameters is no longer recommended. The test was also
7723 the wrong way round! This was probably due to unusual behaviour in
7724 EVP_cmp_parameters() which returns 1 if the parameters match.
7725 This meant that parameters were omitted when they *didn't* match and
7726 the certificate was useless. Certificates signed with 'ca' didn't have
7728 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7730 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7731 The interface is as follows:
7732 Applications can use
7733 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7734 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7735 "off" is now the default.
7736 The library internally uses
7737 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7738 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7739 to disable memory-checking temporarily.
7741 Some inconsistent states that previously were possible (and were
7742 even the default) are now avoided.
7744 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7745 with each memory chunk allocated; this is occasionally more helpful
7746 than just having a counter.
7748 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7750 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7754 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7755 which largely parallels "options", but is for changing API behaviour,
7756 whereas "options" are about protocol behaviour.
7757 Initial "mode" flags are:
7759 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7760 a single record has been written.
7761 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7762 retries use the same buffer location.
7763 (But all of the contents must be
7767 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7770 *) Fix problems with no-hmac etc.
7771 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7773 *) New functions RSA_get_default_method(), RSA_set_method() and
7774 RSA_get_method(). These allows replacement of RSA_METHODs without having
7775 to mess around with the internals of an RSA structure.
7778 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7779 Also really enable memory leak checks in openssl.c and in some
7781 [Chad C. Mulligan, Bodo Moeller]
7783 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7784 up the length of negative integers. This has now been simplified to just
7785 store the length when it is first determined and use it later, rather
7786 than trying to keep track of where data is copied and updating it to
7788 [Steve Henson, reported by Brien Wheeler
7789 <bwheeler@authentica-security.com>]
7791 *) Add a new function PKCS7_signatureVerify. This allows the verification
7792 of a PKCS#7 signature but with the signing certificate passed to the
7793 function itself. This contrasts with PKCS7_dataVerify which assumes the
7794 certificate is present in the PKCS#7 structure. This isn't always the
7795 case: certificates can be omitted from a PKCS#7 structure and be
7796 distributed by "out of band" means (such as a certificate database).
7799 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7800 function prototypes in pem.h, also change util/mkdef.pl to add the
7801 necessary function names.
7804 *) mk1mf.pl (used by Windows builds) did not properly read the
7805 options set by Configure in the top level Makefile, and Configure
7806 was not even able to write more than one option correctly.
7807 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7810 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7811 file to be loaded from a BIO or FILE pointer. The BIO version will
7812 for example allow memory BIOs to contain config info.
7815 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7816 Whoever hopes to achieve shared-library compatibility across versions
7817 must use this, not the compile-time macro.
7818 (Exercise 0.9.4: Which is the minimum library version required by
7820 Note: All this applies only to multi-threaded programs, others don't
7824 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7825 through a BIO pair triggered the default case, i.e.
7826 SSLerr(...,SSL_R_UNKNOWN_STATE).
7829 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7830 can use the SSL library even if none of the specific BIOs is
7834 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7835 for the encoded length.
7836 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7838 *) Add initial documentation of the X509V3 functions.
7841 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7842 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7843 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7844 secure PKCS#8 private key format with a high iteration count.
7847 *) Fix determination of Perl interpreter: A perl or perl5
7848 _directory_ in $PATH was also accepted as the interpreter.
7849 [Ralf S. Engelschall]
7851 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7852 wrong with it but it was very old and did things like calling
7853 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7857 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7858 to use the new extension code.
7861 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7862 with macros. This should make it easier to change their form, add extra
7863 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7867 *) Add to configuration table a new entry that can specify an alternative
7868 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7869 according to Mark Crispin <MRC@Panda.COM>.
7873 *) DES CBC did not update the IV. Weird.
7876 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7877 Changing the behaviour of the former might break existing programs --
7878 where IV updating is needed, des_ncbc_encrypt can be used.
7881 *) When bntest is run from "make test" it drives bc to check its
7882 calculations, as well as internally checking them. If an internal check
7883 fails, it needs to cause bc to give a non-zero result or make test carries
7884 on without noticing the failure. Fixed.
7887 *) DES library cleanups.
7890 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7891 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7892 ciphers. NOTE: although the key derivation function has been verified
7893 against some published test vectors it has not been extensively tested
7894 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7898 *) Instead of "mkdir -p", which is not fully portable, use new
7899 Perl script "util/mkdir-p.pl".
7902 *) Rewrite the way password based encryption (PBE) is handled. It used to
7903 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7904 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7905 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7906 the 'parameter' field of the AlgorithmIdentifier is passed to the
7907 underlying key generation function so it must do its own ASN1 parsing.
7908 This has also changed the EVP_PBE_CipherInit() function which now has a
7909 'parameter' argument instead of literal salt and iteration count values
7910 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7913 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7914 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7915 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7916 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7917 value was just used as a "magic string" and not used directly its
7918 value doesn't matter.
7921 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7925 *) "linux-sparc64" configuration (ultrapenguin).
7926 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7927 "linux-sparc" configuration.
7928 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7930 *) config now generates no-xxx options for missing ciphers.
7933 *) Support the EBCDIC character set (work in progress).
7934 File ebcdic.c not yet included because it has a different license.
7935 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7937 *) Support BS2000/OSD-POSIX.
7938 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7940 *) Make callbacks for key generation use void * instead of char *.
7943 *) Make S/MIME samples compile (not yet tested).
7946 *) Additional typesafe stacks.
7949 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7953 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7955 *) New configuration variant "sco5-gcc".
7957 *) Updated some demos.
7958 [Sean O Riordain, Wade Scholine]
7960 *) Add missing BIO_free at exit of pkcs12 application.
7963 *) Fix memory leak in conf.c.
7966 *) Updates for Win32 to assembler version of MD5.
7969 *) Set #! path to perl in apps/der_chop to where we found it
7970 instead of using a fixed path.
7973 *) SHA library changes for irix64-mips4-cc.
7976 *) Improvements for VMS support.
7980 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7982 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7983 This also avoids the problems with SC4.2 and unpatched SC5.
7984 [Andy Polyakov <appro@fy.chalmers.se>]
7986 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7987 These are required because of the typesafe stack would otherwise break
7988 existing code. If old code used a structure member which used to be STACK
7989 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7990 sk_num or sk_value it would produce an error because the num, data members
7991 are not present in STACK_OF. Now it just produces a warning. sk_set
7992 replaces the old method of assigning a value to sk_value
7993 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7994 that does this will no longer work (and should use sk_set instead) but
7995 this could be regarded as a "questionable" behaviour anyway.
7998 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7999 correctly handle encrypted S/MIME data.
8002 *) Change type of various DES function arguments from des_cblock
8003 (which means, in function argument declarations, pointer to char)
8004 to des_cblock * (meaning pointer to array with 8 char elements),
8005 which allows the compiler to do more typechecking; it was like
8006 that back in SSLeay, but with lots of ugly casts.
8008 Introduce new type const_des_cblock.
8011 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8012 problems: find RecipientInfo structure that matches recipient certificate
8013 and initialise the ASN1 structures properly based on passed cipher.
8016 *) Belatedly make the BN tests actually check the results.
8019 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8020 to and from BNs: it was completely broken. New compilation option
8021 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8022 key elements as negative integers.
8025 *) Reorganize and speed up MD5.
8026 [Andy Polyakov <appro@fy.chalmers.se>]
8029 [Richard Levitte <richard@levitte.org>]
8031 *) New option -out to asn1parse to allow the parsed structure to be
8032 output to a file. This is most useful when combined with the -strparse
8033 option to examine the output of things like OCTET STRINGS.
8036 *) Make SSL library a little more fool-proof by not requiring any longer
8037 that SSL_set_{accept,connect}_state be called before
8038 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8039 in many applications because usually everything *appeared* to work as
8040 intended anyway -- now it really works as intended).
8043 *) Move openssl.cnf out of lib/.
8046 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8047 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8048 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8049 [Ralf S. Engelschall]
8051 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8052 handle PKCS#7 enveloped data properly.
8053 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8055 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8056 copying pointers. The cert_st handling is changed by this in
8057 various ways (and thus what used to be known as ctx->default_cert
8058 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8059 any longer when s->cert does not give us what we need).
8060 ssl_cert_instantiate becomes obsolete by this change.
8061 As soon as we've got the new code right (possibly it already is?),
8062 we have solved a couple of bugs of the earlier code where s->cert
8063 was used as if it could not have been shared with other SSL structures.
8065 Note that using the SSL API in certain dirty ways now will result
8066 in different behaviour than observed with earlier library versions:
8067 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8068 does not influence s as it used to.
8070 In order to clean up things more thoroughly, inside SSL_SESSION
8071 we don't use CERT any longer, but a new structure SESS_CERT
8072 that holds per-session data (if available); currently, this is
8073 the peer's certificate chain and, for clients, the server's certificate
8074 and temporary key. CERT holds only those values that can have
8075 meaningful defaults in an SSL_CTX.
8078 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8079 from the internal representation. Various PKCS#7 fixes: remove some
8080 evil casts and set the enc_dig_alg field properly based on the signing
8084 *) Allow PKCS#12 password to be set from the command line or the
8085 environment. Let 'ca' get its config file name from the environment
8086 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8090 *) Allow certificate policies extension to use an IA5STRING for the
8091 organization field. This is contrary to the PKIX definition but
8092 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8096 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8097 without disallowing inline assembler and the like for non-pedantic builds.
8100 *) Support Borland C++ builder.
8101 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8106 *) SHA-1 cleanups and performance enhancements.
8107 [Andy Polyakov <appro@fy.chalmers.se>]
8109 *) Sparc v8plus assembler for the bignum library.
8110 [Andy Polyakov <appro@fy.chalmers.se>]
8112 *) Accept any -xxx and +xxx compiler options in Configure.
8115 *) Update HPUX configuration.
8118 *) Add missing sk_<type>_unshift() function to safestack.h
8119 [Ralf S. Engelschall]
8121 *) New function SSL_CTX_use_certificate_chain_file that sets the
8122 "extra_cert"s in addition to the certificate. (This makes sense
8123 only for "PEM" format files, as chains as a whole are not
8127 *) Support verify_depth from the SSL API.
8128 x509_vfy.c had what can be considered an off-by-one-error:
8129 Its depth (which was not part of the external interface)
8130 was actually counting the number of certificates in a chain;
8131 now it really counts the depth.
8134 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8135 instead of X509err, which often resulted in confusing error
8136 messages since the error codes are not globally unique
8137 (e.g. an alleged error in ssl3_accept when a certificate
8138 didn't match the private key).
8140 *) New function SSL_CTX_set_session_id_context that allows to set a default
8141 value (so that you don't need SSL_set_session_id_context for each
8142 connection using the SSL_CTX).
8145 *) OAEP decoding bug fix.
8148 *) Support INSTALL_PREFIX for package builders, as proposed by
8152 *) New Configure options "threads" and "no-threads". For systems
8153 where the proper compiler options are known (currently Solaris
8154 and Linux), "threads" is the default.
8157 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8160 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8161 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8162 such as /usr/local/bin.
8165 *) "make linux-shared" to build shared libraries.
8166 [Niels Poppe <niels@netbox.org>]
8168 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8171 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8172 extension adding in x509 utility.
8175 *) Remove NOPROTO sections and error code comments.
8178 *) Partial rewrite of the DEF file generator to now parse the ANSI
8182 *) New Configure options --prefix=DIR and --openssldir=DIR.
8185 *) Complete rewrite of the error code script(s). It is all now handled
8186 by one script at the top level which handles error code gathering,
8187 header rewriting and C source file generation. It should be much better
8188 than the old method: it now uses a modified version of Ulf's parser to
8189 read the ANSI prototypes in all header files (thus the old K&R definitions
8190 aren't needed for error creation any more) and do a better job of
8191 translating function codes into names. The old 'ASN1 error code imbedded
8192 in a comment' is no longer necessary and it doesn't use .err files which
8193 have now been deleted. Also the error code call doesn't have to appear all
8194 on one line (which resulted in some large lines...).
8197 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8200 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8201 0 (which usually indicates a closed connection), but continue reading.
8204 *) Fix some race conditions.
8207 *) Add support for CRL distribution points extension. Add Certificate
8208 Policies and CRL distribution points documentation.
8211 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8214 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8215 8 of keying material. Merlin has also confirmed interop with this fix
8216 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8217 [Merlin Hughes <merlin@baltimore.ie>]
8219 *) Fix lots of warnings.
8220 [Richard Levitte <levitte@stacken.kth.se>]
8222 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8223 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8224 [Richard Levitte <levitte@stacken.kth.se>]
8226 *) Fix problems with sizeof(long) == 8.
8227 [Andy Polyakov <appro@fy.chalmers.se>]
8229 *) Change functions to ANSI C.
8232 *) Fix typos in error codes.
8233 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8235 *) Remove defunct assembler files from Configure.
8238 *) SPARC v8 assembler BIGNUM implementation.
8239 [Andy Polyakov <appro@fy.chalmers.se>]
8241 *) Support for Certificate Policies extension: both print and set.
8242 Various additions to support the r2i method this uses.
8245 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8246 return a const string when you are expecting an allocated buffer.
8249 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8250 types DirectoryString and DisplayText.
8253 *) Add code to allow r2i extensions to access the configuration database,
8254 add an LHASH database driver and add several ctx helper functions.
8257 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8258 fail when they extended the size of a BIGNUM.
8261 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8262 support typesafe stack.
8265 *) Fix typo in SSL_[gs]et_options().
8266 [Nils Frostberg <nils@medcom.se>]
8268 *) Delete various functions and files that belonged to the (now obsolete)
8269 old X509V3 handling code.
8272 *) New Configure option "rsaref".
8275 *) Don't auto-generate pem.h.
8278 *) Introduce type-safe ASN.1 SETs.
8281 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8282 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8284 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8285 that links with OpenSSL (well at least cause lots of warnings), but fear
8286 not: the conversion is trivial, and it eliminates loads of evil casts. A
8287 few STACKed things have been converted already. Feel free to convert more.
8288 In the fullness of time, I'll do away with the STACK type altogether.
8291 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8292 specified in <certfile> by updating the entry in the index.txt file.
8293 This way one no longer has to edit the index.txt file manually for
8294 revoking a certificate. The -revoke option does the gory details now.
8295 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8297 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8298 `-text' option at all and this way the `-noout -text' combination was
8299 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8300 [Ralf S. Engelschall]
8302 *) Make sure a corresponding plain text error message exists for the
8303 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8304 verify callback function determined that a certificate was revoked.
8305 [Ralf S. Engelschall]
8307 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8308 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8309 all available cipers including rc5, which was forgotten until now.
8310 In order to let the testing shell script know which algorithms
8311 are available, a new (up to now undocumented) command
8312 "openssl list-cipher-commands" is used.
8315 *) Bugfix: s_client occasionally would sleep in select() when
8316 it should have checked SSL_pending() first.
8319 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8320 the raw DSA values prior to ASN.1 encoding.
8323 *) Tweaks to Configure
8324 [Niels Poppe <niels@netbox.org>]
8326 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8330 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8333 *) New config option to avoid instructions that are illegal on the 80386.
8334 The default code is faster, but requires at least a 486.
8337 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8338 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8339 same as SSL2_VERSION anyway.
8342 *) New "-showcerts" option for s_client.
8345 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8346 application. Various cleanups and fixes.
8349 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8350 modify error routines to work internally. Add error codes and PBE init
8351 to library startup routines.
8354 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8355 packing functions to asn1 and evp. Changed function names and error
8356 codes along the way.
8359 *) PKCS12 integration: and so it begins... First of several patches to
8360 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8361 objects to objects.h
8364 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8365 and display support for Thawte strong extranet extension.
8368 *) Add LinuxPPC support.
8369 [Jeff Dubrule <igor@pobox.org>]
8371 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8372 bn_div_words in alpha.s.
8373 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8375 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8376 OAEP isn't supported when OpenSSL is built with RSAref.
8377 [Ulf Moeller <ulf@fitug.de>]
8379 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8380 so they no longer are missing under -DNOPROTO.
8381 [Soren S. Jorvang <soren@t.dk>]
8384 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8386 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8387 doesn't work when the session is reused. Coming soon!
8390 *) Fix a security hole, that allows sessions to be reused in the wrong
8391 context thus bypassing client cert protection! All software that uses
8392 client certs and session caches in multiple contexts NEEDS PATCHING to
8393 allow session reuse! A fuller solution is in the works.
8394 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8396 *) Some more source tree cleanups (removed obsolete files
8397 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8398 permission on "config" script to be executable) and a fix for the INSTALL
8400 [Ulf Moeller <ulf@fitug.de>]
8402 *) Remove some legacy and erroneous uses of malloc, free instead of
8404 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8406 *) Make rsa_oaep_test return non-zero on error.
8407 [Ulf Moeller <ulf@fitug.de>]
8409 *) Add support for native Solaris shared libraries. Configure
8410 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8411 if someone would make that last step automatic.
8412 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8414 *) ctx_size was not built with the right compiler during "make links". Fixed.
8417 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8418 except NULL ciphers". This means the default cipher list will no longer
8419 enable NULL ciphers. They need to be specifically enabled e.g. with
8420 the string "DEFAULT:eNULL".
8423 *) Fix to RSA private encryption routines: if p < q then it would
8424 occasionally produce an invalid result. This will only happen with
8425 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8428 *) Be less restrictive and allow also `perl util/perlpath.pl
8429 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8430 because this way one can also use an interpreter named `perl5' (which is
8431 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8432 installed as `perl').
8433 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8435 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8436 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8438 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8439 advapi32.lib to Win32 build and change the pem test comparision
8440 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8441 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8442 and crypto/des/ede_cbcm_enc.c.
8445 *) DES quad checksum was broken on big-endian architectures. Fixed.
8448 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8449 Win32 test batch file so it (might) work again. The Win32 test batch file
8450 is horrible: I feel ill....
8453 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8454 in e_os.h. Audit of header files to check ANSI and non ANSI
8455 sections: 10 functions were absent from non ANSI section and not exported
8456 from Windows DLLs. Fixed up libeay.num for new functions.
8459 *) Make `openssl version' output lines consistent.
8460 [Ralf S. Engelschall]
8462 *) Fix Win32 symbol export lists for BIO functions: Added
8463 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8464 to ms/libeay{16,32}.def.
8465 [Ralf S. Engelschall]
8467 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8468 fine under Unix and passes some trivial tests I've now added. But the
8469 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8470 added to make sure no one expects that this stuff really works in the
8471 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8472 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8474 [Ralf S. Engelschall]
8476 *) Fix the generation of two part addresses in perl.
8477 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8479 *) Add config entry for Linux on MIPS.
8480 [John Tobey <jtobey@channel1.com>]
8482 *) Make links whenever Configure is run, unless we are on Windoze.
8485 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8486 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8490 *) Add a useful kludge to allow package maintainers to specify compiler and
8491 other platforms details on the command line without having to patch the
8492 Configure script everytime: One now can use ``perl Configure
8493 <id>:<details>'', i.e. platform ids are allowed to have details appended
8494 to them (seperated by colons). This is treated as there would be a static
8495 pre-configured entry in Configure's %table under key <id> with value
8496 <details> and ``perl Configure <id>'' is called. So, when you want to
8497 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8498 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8499 now, which overrides the FreeBSD-elf entry on-the-fly.
8500 [Ralf S. Engelschall]
8502 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8505 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8506 on the `perl Configure ...' command line. This way one can compile
8507 OpenSSL libraries with Position Independent Code (PIC) which is needed
8508 for linking it into DSOs.
8509 [Ralf S. Engelschall]
8511 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8515 *) Cleaned up the LICENSE document: The official contact for any license
8516 questions now is the OpenSSL core team under openssl-core@openssl.org.
8517 And add a paragraph about the dual-license situation to make sure people
8518 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8519 to the OpenSSL toolkit.
8520 [Ralf S. Engelschall]
8522 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8523 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8524 Additonally cleaned up the `make links' target: Remove unnecessary
8525 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8526 to speed processing and no longer clutter the display with confusing
8527 stuff. Instead only the actually done links are displayed.
8528 [Ralf S. Engelschall]
8530 *) Permit null encryption ciphersuites, used for authentication only. It used
8531 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8532 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8536 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8537 signed attributes when verifying signatures (this would break them),
8538 the detached data encoding was wrong and public keys obtained using
8539 X509_get_pubkey() weren't freed.
8542 *) Add text documentation for the BUFFER functions. Also added a work around
8543 to a Win95 console bug. This was triggered by the password read stuff: the
8544 last character typed gets carried over to the next fread(). If you were
8545 generating a new cert request using 'req' for example then the last
8546 character of the passphrase would be CR which would then enter the first
8550 *) Added the new `Includes OpenSSL Cryptography Software' button as
8551 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8552 button and can be used by applications based on OpenSSL to show the
8553 relationship to the OpenSSL project.
8554 [Ralf S. Engelschall]
8556 *) Remove confusing variables in function signatures in files
8557 ssl/ssl_lib.c and ssl/ssl.h.
8558 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8560 *) Don't install bss_file.c under PREFIX/include/
8561 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8563 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8564 functions that return function pointers and has support for NT specific
8565 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8566 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8567 unsigned to signed types: this was killing the Win32 compile.
8570 *) Add new certificate file to stack functions,
8571 SSL_add_dir_cert_subjects_to_stack() and
8572 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8573 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8574 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8575 This means that Apache-SSL and similar packages don't have to mess around
8576 to add as many CAs as they want to the preferred list.
8579 *) Experiment with doxygen documentation. Currently only partially applied to
8581 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8582 openssl.doxy as the configuration file.
8585 *) Get rid of remaining C++-style comments which strict C compilers hate.
8586 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8588 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8589 compiled in by default: it has problems with large keys.
8592 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8593 DH private keys and/or callback functions which directly correspond to
8594 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8595 is needed for applications which have to configure certificates on a
8596 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8598 For the RSA certificate situation is makes no difference, but
8599 for the DSA certificate situation this fixes the "no shared cipher"
8600 problem where the OpenSSL cipher selection procedure failed because the
8601 temporary keys were not overtaken from the context and the API provided
8602 no way to reconfigure them.
8603 The new functions now let applications reconfigure the stuff and they
8604 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8605 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8606 non-public-API function ssl_cert_instantiate() is used as a helper
8607 function and also to reduce code redundancy inside ssl_rsa.c.
8608 [Ralf S. Engelschall]
8610 *) Move s_server -dcert and -dkey options out of the undocumented feature
8611 area because they are useful for the DSA situation and should be
8612 recognized by the users.
8613 [Ralf S. Engelschall]
8615 *) Fix the cipher decision scheme for export ciphers: the export bits are
8616 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8617 SSL_EXP_MASK. So, the original variable has to be used instead of the
8618 already masked variable.
8619 [Richard Levitte <levitte@stacken.kth.se>]
8621 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8622 [Richard Levitte <levitte@stacken.kth.se>]
8624 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8625 from `int' to `unsigned int' because it's a length and initialized by
8626 EVP_DigestFinal() which expects an `unsigned int *'.
8627 [Richard Levitte <levitte@stacken.kth.se>]
8629 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8630 script. Instead use the usual Shell->Perl transition trick.
8631 [Ralf S. Engelschall]
8633 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8634 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8635 -noout -modulus' as it's already the case for `openssl rsa -noout
8636 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8637 currently the public key is printed (a decision which was already done by
8638 `openssl dsa -modulus' in the past) which serves a similar purpose.
8639 Additionally the NO_RSA no longer completely removes the whole -modulus
8640 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8642 [Ralf S. Engelschall]
8644 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8645 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8646 [Arne Ansper <arne@ats.cyber.ee>]
8648 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8649 to be added. Now both 'req' and 'ca' can use new objects defined in the
8653 *) Add cool BIO that does syslog (or event log on NT).
8654 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8656 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8657 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8658 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8659 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8662 *) Add preliminary config info for new extension code.
8665 *) Make RSA_NO_PADDING really use no padding.
8666 [Ulf Moeller <ulf@fitug.de>]
8668 *) Generate errors when private/public key check is done.
8671 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8672 for some CRL extensions and new objects added.
8675 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8676 key usage extension and fuller support for authority key id.
8679 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8680 padding method for RSA, which is recommended for new applications in PKCS
8681 #1 v2.0 (RFC 2437, October 1998).
8682 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8683 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8684 against Bleichbacher's attack on RSA.
8685 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8688 *) Updates to the new SSL compression code
8689 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8691 *) Fix so that the version number in the master secret, when passed
8692 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8693 (because the server will not accept higher), that the version number
8694 is 0x03,0x01, not 0x03,0x00
8695 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8697 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8698 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8699 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8702 *) Support for RAW extensions where an arbitrary extension can be
8703 created by including its DER encoding. See apps/openssl.cnf for
8707 *) Make sure latest Perl versions don't interpret some generated C array
8708 code as Perl array code in the crypto/err/err_genc.pl script.
8709 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8711 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8712 not many people have the assembler. Various Win32 compilation fixes and
8713 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8717 *) Modify configure script 'Configure' to automatically create crypto/date.h
8718 file under Win32 and also build pem.h from pem.org. New script
8719 util/mkfiles.pl to create the MINFO file on environments that can't do a
8720 'make files': perl util/mkfiles.pl >MINFO should work.
8723 *) Major rework of DES function declarations, in the pursuit of correctness
8724 and purity. As a result, many evil casts evaporated, and some weirdness,
8725 too. You may find this causes warnings in your code. Zapping your evil
8726 casts will probably fix them. Mostly.
8729 *) Fix for a typo in asn1.h. Bug fix to object creation script
8730 obj_dat.pl. It considered a zero in an object definition to mean
8731 "end of object": none of the objects in objects.h have any zeros
8732 so it wasn't spotted.
8733 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8735 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8736 Masking (CBCM). In the absence of test vectors, the best I have been able
8737 to do is check that the decrypt undoes the encrypt, so far. Send me test
8738 vectors if you have them.
8741 *) Correct calculation of key length for export ciphers (too much space was
8742 allocated for null ciphers). This has not been tested!
8745 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8746 message is now correct (it understands "crypto" and "ssl" on its
8747 command line). There is also now an "update" option. This will update
8748 the util/ssleay.num and util/libeay.num files with any new functions.
8750 perl util/mkdef.pl crypto ssl update
8751 it will update them.
8754 *) Overhauled the Perl interface (perl/*):
8755 - ported BN stuff to OpenSSL's different BN library
8756 - made the perl/ source tree CVS-aware
8757 - renamed the package from SSLeay to OpenSSL (the files still contain
8758 their history because I've copied them in the repository)
8759 - removed obsolete files (the test scripts will be replaced
8760 by better Test::Harness variants in the future)
8761 [Ralf S. Engelschall]
8763 *) First cut for a very conservative source tree cleanup:
8764 1. merge various obsolete readme texts into doc/ssleay.txt
8765 where we collect the old documents and readme texts.
8766 2. remove the first part of files where I'm already sure that we no
8767 longer need them because of three reasons: either they are just temporary
8768 files which were left by Eric or they are preserved original files where
8769 I've verified that the diff is also available in the CVS via "cvs diff
8770 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8771 the crypto/md/ stuff).
8772 [Ralf S. Engelschall]
8774 *) More extension code. Incomplete support for subject and issuer alt
8775 name, issuer and authority key id. Change the i2v function parameters
8776 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8777 what that's for :-) Fix to ASN1 macro which messed up
8778 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8781 *) Preliminary support for ENUMERATED type. This is largely copied from the
8785 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8786 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8788 *) Make sure `make rehash' target really finds the `openssl' program.
8789 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8791 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8792 like to hear about it if this slows down other processors.
8795 *) Add CygWin32 platform information to Configure script.
8796 [Alan Batie <batie@aahz.jf.intel.com>]
8798 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8799 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8801 *) New program nseq to manipulate netscape certificate sequences
8804 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8808 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8809 but the BN code had some problems that would cause failures when
8810 doing certificate verification and some other functions.
8811 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8813 *) Add ASN1 and PEM code to support netscape certificate sequences.
8816 *) Add ASN1 and PEM code to support netscape certificate sequences.
8819 *) Add several PKIX and private extended key usage OIDs.
8822 *) Modify the 'ca' program to handle the new extension code. Modify
8823 openssl.cnf for new extension format, add comments.
8826 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8827 and add a sample to openssl.cnf so req -x509 now adds appropriate
8831 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8832 error code, add initial support to X509_print() and x509 application.
8835 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8836 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8837 stuff is currently isolated and isn't even compiled yet.
8840 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8841 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8842 Removed the versions check from X509 routines when loading extensions:
8843 this allows certain broken certificates that don't set the version
8844 properly to be processed.
8847 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8848 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8849 can still be regenerated with "make depend".
8852 *) Spelling mistake in C version of CAST-128.
8853 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8855 *) Changes to the error generation code. The perl script err-code.pl
8856 now reads in the old error codes and retains the old numbers, only
8857 adding new ones if necessary. It also only changes the .err files if new
8858 codes are added. The makefiles have been modified to only insert errors
8859 when needed (to avoid needlessly modifying header files). This is done
8860 by only inserting errors if the .err file is newer than the auto generated
8861 C file. To rebuild all the error codes from scratch (the old behaviour)
8862 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8863 or delete all the .err files.
8866 *) CAST-128 was incorrectly implemented for short keys. The C version has
8867 been fixed, but is untested. The assembler versions are also fixed, but
8868 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8869 to regenerate it if needed.
8870 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8871 Hagino <itojun@kame.net>]
8873 *) File was opened incorrectly in randfile.c.
8874 [Ulf Möller <ulf@fitug.de>]
8876 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8877 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8878 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8879 al: it's just almost always a UTCTime. Note this patch adds new error
8880 codes so do a "make errors" if there are problems.
8883 *) Correct Linux 1 recognition in config.
8884 [Ulf Möller <ulf@fitug.de>]
8886 *) Remove pointless MD5 hash when using DSA keys in ca.
8887 [Anonymous <nobody@replay.com>]
8889 *) Generate an error if given an empty string as a cert directory. Also
8890 generate an error if handed NULL (previously returned 0 to indicate an
8891 error, but didn't set one).
8892 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8894 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8897 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8898 parameters. This was causing a warning which killed off the Win32 compile.
8901 *) Remove C++ style comments from crypto/bn/bn_local.h.
8902 [Neil Costigan <neil.costigan@celocom.com>]
8904 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8905 based on a text string, looking up short and long names and finally
8906 "dot" format. The "dot" format stuff didn't work. Added new function
8907 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8908 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8909 OID is not part of the table.
8912 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8913 X509_LOOKUP_by_alias().
8916 *) Sort openssl functions by name.
8919 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8920 encryption from sample DSA keys (in case anyone is interested the password
8924 *) Make _all_ *_free functions accept a NULL pointer.
8925 [Frans Heymans <fheymans@isaserver.be>]
8927 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8929 [Anonymous <nobody@replay.com>]
8931 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8932 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8934 *) Don't blow it for numeric -newkey arguments to apps/req.
8935 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8937 *) Temp key "for export" tests were wrong in s3_srvr.c.
8938 [Anonymous <nobody@replay.com>]
8940 *) Add prototype for temp key callback functions
8941 SSL_CTX_set_tmp_{rsa,dh}_callback().
8944 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8945 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8948 *) X509_name_add_entry() freed the wrong thing after an error.
8949 [Arne Ansper <arne@ats.cyber.ee>]
8951 *) rsa_eay.c would attempt to free a NULL context.
8952 [Arne Ansper <arne@ats.cyber.ee>]
8954 *) BIO_s_socket() had a broken should_retry() on Windoze.
8955 [Arne Ansper <arne@ats.cyber.ee>]
8957 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8958 [Arne Ansper <arne@ats.cyber.ee>]
8960 *) Make sure the already existing X509_STORE->depth variable is initialized
8961 in X509_STORE_new(), but document the fact that this variable is still
8962 unused in the certificate verification process.
8963 [Ralf S. Engelschall]
8965 *) Fix the various library and apps files to free up pkeys obtained from
8966 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8969 *) Fix reference counting in X509_PUBKEY_get(). This makes
8970 demos/maurice/example2.c work, amongst others, probably.
8971 [Steve Henson and Ben Laurie]
8973 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8974 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8975 are no longer created. This way we have a single and consistent command
8976 line interface `openssl <command>', similar to `cvs <command>'.
8977 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8979 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8980 BIT STRING wrapper always have zero unused bits.
8983 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8986 *) Make the top-level INSTALL documentation easier to understand.
8989 *) Makefiles updated to exit if an error occurs in a sub-directory
8990 make (including if user presses ^C) [Paul Sutton]
8992 *) Make Montgomery context stuff explicit in RSA data structure.
8995 *) Fix build order of pem and err to allow for generated pem.h.
8998 *) Fix renumbering bug in X509_NAME_delete_entry().
9001 *) Enhanced the err-ins.pl script so it makes the error library number
9002 global and can add a library name. This is needed for external ASN1 and
9003 other error libraries.
9006 *) Fixed sk_insert which never worked properly.
9009 *) Fix ASN1 macros so they can handle indefinite length construted
9010 EXPLICIT tags. Some non standard certificates use these: they can now
9014 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9015 into a single doc/ssleay.txt bundle. This way the information is still
9016 preserved but no longer messes up this directory. Now it's new room for
9017 the new set of documenation files.
9018 [Ralf S. Engelschall]
9020 *) SETs were incorrectly DER encoded. This was a major pain, because they
9021 shared code with SEQUENCEs, which aren't coded the same. This means that
9022 almost everything to do with SETs or SEQUENCEs has either changed name or
9023 number of arguments.
9024 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9026 *) Fix test data to work with the above.
9029 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9030 was already fixed by Eric for 0.9.1 it seems.
9031 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9033 *) Autodetect FreeBSD3.
9036 *) Fix various bugs in Configure. This affects the following platforms:
9040 unixware-2.0-pentium
9044 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9045 before they are needed.
9048 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9052 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9054 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9055 changed SSLeay to OpenSSL in version strings.
9056 [Ralf S. Engelschall]
9058 *) Some fixups to the top-level documents.
9061 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9062 because the symlink to include/ was missing.
9063 [Ralf S. Engelschall]
9065 *) Incorporated the popular no-RSA/DSA-only patches
9066 which allow to compile a RSA-free SSLeay.
9067 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9069 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9070 when "ssleay" is still not found.
9071 [Ralf S. Engelschall]
9073 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9074 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9076 *) Updated the README file.
9077 [Ralf S. Engelschall]
9079 *) Added various .cvsignore files in the CVS repository subdirs
9080 to make a "cvs update" really silent.
9081 [Ralf S. Engelschall]
9083 *) Recompiled the error-definition header files and added
9084 missing symbols to the Win32 linker tables.
9085 [Ralf S. Engelschall]
9087 *) Cleaned up the top-level documents;
9088 o new files: CHANGES and LICENSE
9089 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9090 o merged COPYRIGHT into LICENSE
9091 o removed obsolete TODO file
9092 o renamed MICROSOFT to INSTALL.W32
9093 [Ralf S. Engelschall]
9095 *) Removed dummy files from the 0.9.1b source tree:
9096 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9097 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9098 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9099 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9100 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9101 [Ralf S. Engelschall]
9103 *) Added various platform portability fixes.
9106 *) The Genesis of the OpenSSL rpject:
9107 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9108 Young and Tim J. Hudson created while they were working for C2Net until
9110 [The OpenSSL Project]
9113 Changes between 0.9.0b and 0.9.1b [not released]
9115 *) Updated a few CA certificates under certs/
9118 *) Changed some BIGNUM api stuff.
9121 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9122 DGUX x86, Linux Alpha, etc.
9125 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9126 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9130 *) Add -strparse option to asn1pars program which parses nested
9132 [Dr Stephen Henson <shenson@bigfoot.com>]
9134 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9137 *) DSA fix for "ca" program.
9140 *) Added "-genkey" option to "dsaparam" program.
9143 *) Added RIPE MD160 (rmd160) message digest.
9146 *) Added -a (all) option to "ssleay version" command.
9149 *) Added PLATFORM define which is the id given to Configure.
9152 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9155 *) Extended the ASN.1 parser routines.
9158 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9161 *) Added a BN_CTX to the BN library.
9164 *) Fixed the weak key values in DES library
9167 *) Changed API in EVP library for cipher aliases.
9170 *) Added support for RC2/64bit cipher.
9173 *) Converted the lhash library to the crypto/mem.c functions.
9176 *) Added more recognized ASN.1 object ids.
9179 *) Added more RSA padding checks for SSL/TLS.
9182 *) Added BIO proxy/filter functionality.
9185 *) Added extra_certs to SSL_CTX which can be used
9186 send extra CA certificates to the client in the CA cert chain sending
9187 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9190 *) Now Fortezza is denied in the authentication phase because
9191 this is key exchange mechanism is not supported by SSLeay at all.
9194 *) Additional PKCS1 checks.
9197 *) Support the string "TLSv1" for all TLS v1 ciphers.
9200 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9201 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9204 *) Fixed a few memory leaks.
9207 *) Fixed various code and comment typos.
9210 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9211 bytes sent in the client random.
9212 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob