5 Changes between 0.9.8m (?) and 1.0.0 [xx XXX xxxx]
7 *) Fix compression algorithm handling: if resuming a session use the
8 compression algorithm of the resumed session instead of determining
9 it from client hello again. Don't allow server to change algorithm.
12 *) Add load_crls() function to apps tidying load_certs() too. Add option
13 to verify utility to allow additional CRLs to be included.
16 *) Update OCSP request code to permit adding custom headers to the request:
17 some responders need this.
20 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
22 [Julia Lawall <julia@diku.dk>]
24 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
25 needlessly dereferenced structures, used obsolete functions and
26 didn't handle all updated verify codes correctly.
29 *) Disable MD2 in the default configuration.
32 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
33 indicate the initial BIO being pushed or popped. This makes it possible
34 to determine whether the BIO is the one explicitly called or as a result
35 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
36 it handles reference counts correctly and doesn't zero out the I/O bio
37 when it is not being explicitly popped. WARNING: applications which
38 included workarounds for the old buggy behaviour will need to be modified
39 or they could free up already freed BIOs.
42 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
43 renaming to all platforms (within the 0.9.8 branch, this was
44 done conditionally on Netware platforms to avoid a name clash).
45 [Guenter <lists@gknw.net>]
47 *) Add ECDHE and PSK support to DTLS.
48 [Michael Tuexen <tuexen@fh-muenster.de>]
50 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
54 *) Add "missing" function EVP_MD_flags() (without this the only way to
55 retrieve a digest flags is by accessing the structure directly. Update
56 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
57 or cipher is registered as in the "from" argument. Print out all
58 registered digests in the dgst usage message instead of manually
59 attempting to work them out.
62 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
63 this allows the use of compression and extensions. Change default cipher
64 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
65 by default unless an application cipher string requests it.
68 *) Alter match criteria in PKCS12_parse(). It used to try to use local
69 key ids to find matching certificates and keys but some PKCS#12 files
70 don't follow the (somewhat unwritten) rules and this strategy fails.
71 Now just gather all certificates together and the first private key
72 then look for the first certificate that matches the key.
75 *) Support use of registered digest and cipher names for dgst and cipher
76 commands instead of having to add each one as a special case. So now
83 openssl dgst -sha256 foo
85 and this works for ENGINE based algorithms too.
89 *) Update Gost ENGINE to support parameter files.
90 [Victor B. Wagner <vitus@cryptocom.ru>]
92 *) Support GeneralizedTime in ca utility.
93 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
95 *) Enhance the hash format used for certificate directory links. The new
96 form uses the canonical encoding (meaning equivalent names will work
97 even if they aren't identical) and uses SHA1 instead of MD5. This form
98 is incompatible with the older format and as a result c_rehash should
99 be used to rebuild symbolic links.
102 *) Make PKCS#8 the default write format for private keys, replacing the
103 traditional format. This form is standardised, more secure and doesn't
104 include an implicit MD5 dependency.
107 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
108 committed to OpenSSL should pass this lot as a minimum.
111 *) Add session ticket override functionality for use by EAP-FAST.
112 [Jouni Malinen <j@w1.fi>]
114 *) Modify HMAC functions to return a value. Since these can be implemented
115 in an ENGINE errors can occur.
118 *) Type-checked OBJ_bsearch_ex.
121 *) Type-checked OBJ_bsearch. Also some constification necessitated
122 by type-checking. Still to come: TXT_DB, bsearch(?),
123 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
127 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
128 seconds to a tm structure directly, instead of going through OS
129 specific date routines. This avoids any issues with OS routines such
130 as the year 2038 bug. New *_adj() functions for ASN1 time structures
131 and X509_time_adj_ex() to cover the extended range. The existing
132 X509_time_adj() is still usable and will no longer have any date issues.
135 *) Delta CRL support. New use deltas option which will attempt to locate
136 and search any appropriate delta CRLs available.
138 This work was sponsored by Google.
141 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
142 code and add additional score elements. Validate alternate CRL paths
143 as part of the CRL checking and indicate a new error "CRL path validation
144 error" in this case. Applications wanting additional details can use
145 the verify callback and check the new "parent" field. If this is not
146 NULL CRL path validation is taking place. Existing applications wont
147 see this because it requires extended CRL support which is off by
150 This work was sponsored by Google.
153 *) Support for freshest CRL extension.
155 This work was sponsored by Google.
158 *) Initial indirect CRL support. Currently only supported in the CRLs
159 passed directly and not via lookup. Process certificate issuer
160 CRL entry extension and lookup CRL entries by bother issuer name
161 and serial number. Check and process CRL issuer entry in IDP extension.
163 This work was sponsored by Google.
166 *) Add support for distinct certificate and CRL paths. The CRL issuer
167 certificate is validated separately in this case. Only enabled if
168 an extended CRL support flag is set: this flag will enable additional
169 CRL functionality in future.
171 This work was sponsored by Google.
174 *) Add support for policy mappings extension.
176 This work was sponsored by Google.
179 *) Fixes to pathlength constraint, self issued certificate handling,
180 policy processing to align with RFC3280 and PKITS tests.
182 This work was sponsored by Google.
185 *) Support for name constraints certificate extension. DN, email, DNS
186 and URI types are currently supported.
188 This work was sponsored by Google.
191 *) To cater for systems that provide a pointer-based thread ID rather
192 than numeric, deprecate the current numeric thread ID mechanism and
193 replace it with a structure and associated callback type. This
194 mechanism allows a numeric "hash" to be extracted from a thread ID in
195 either case, and on platforms where pointers are larger than 'long',
196 mixing is done to help ensure the numeric 'hash' is usable even if it
197 can't be guaranteed unique. The default mechanism is to use "&errno"
198 as a pointer-based thread ID to distinguish between threads.
200 Applications that want to provide their own thread IDs should now use
201 CRYPTO_THREADID_set_callback() to register a callback that will call
202 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
204 Note that ERR_remove_state() is now deprecated, because it is tied
205 to the assumption that thread IDs are numeric. ERR_remove_state(0)
206 to free the current thread's error state should be replaced by
207 ERR_remove_thread_state(NULL).
209 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
210 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
211 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
212 application was previously providing a numeric thread callback that
213 was inappropriate for distinguishing threads, then uniqueness might
214 have been obtained with &errno that happened immediately in the
215 intermediate development versions of OpenSSL; this is no longer the
216 case, the numeric thread callback will now override the automatic use
218 [Geoff Thorpe, with help from Bodo Moeller]
220 *) Initial support for different CRL issuing certificates. This covers a
221 simple case where the self issued certificates in the chain exist and
222 the real CRL issuer is higher in the existing chain.
224 This work was sponsored by Google.
227 *) Removed effectively defunct crypto/store from the build.
230 *) Revamp of STACK to provide stronger type-checking. Still to come:
231 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
232 ASN1_STRING, CONF_VALUE.
235 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
236 RAM on SSL connections. This option can save about 34k per idle SSL.
239 *) Revamp of LHASH to provide stronger type-checking. Still to come:
240 STACK, TXT_DB, bsearch, qsort.
243 *) Initial support for Cryptographic Message Syntax (aka CMS) based
244 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
245 support for data, signedData, compressedData, digestedData and
246 encryptedData, envelopedData types included. Scripts to check against
247 RFC4134 examples draft and interop and consistency checks of many
248 content types and variants.
251 *) Add options to enc utility to support use of zlib compression BIO.
254 *) Extend mk1mf to support importing of options and assembly language
255 files from Configure script, currently only included in VC-WIN32.
256 The assembly language rules can now optionally generate the source
257 files from the associated perl scripts.
260 *) Implement remaining functionality needed to support GOST ciphersuites.
261 Interop testing has been performed using CryptoPro implementations.
262 [Victor B. Wagner <vitus@cryptocom.ru>]
264 *) s390x assembler pack.
267 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
271 *) Implement Opaque PRF Input TLS extension as specified in
272 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
273 official specification yet and no extension type assignment by
274 IANA exists, this extension (for now) will have to be explicitly
275 enabled when building OpenSSL by providing the extension number
276 to use. For example, specify an option
278 -DTLSEXT_TYPE_opaque_prf_input=0x9527
280 to the "config" or "Configure" script to enable the extension,
281 assuming extension number 0x9527 (which is a completely arbitrary
282 and unofficial assignment based on the MD5 hash of the Internet
283 Draft). Note that by doing so, you potentially lose
284 interoperability with other TLS implementations since these might
285 be using the same extension number for other purposes.
287 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
288 opaque PRF input value to use in the handshake. This will create
289 an interal copy of the length-'len' string at 'src', and will
290 return non-zero for success.
292 To get more control and flexibility, provide a callback function
295 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
296 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
300 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
303 Callback function 'cb' will be called in handshakes, and is
304 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
305 Argument 'arg' is for application purposes (the value as given to
306 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
307 be provided to the callback function). The callback function
308 has to return non-zero to report success: usually 1 to use opaque
309 PRF input just if possible, or 2 to enforce use of the opaque PRF
310 input. In the latter case, the library will abort the handshake
311 if opaque PRF input is not successfully negotiated.
313 Arguments 'peerinput' and 'len' given to the callback function
314 will always be NULL and 0 in the case of a client. A server will
315 see the client's opaque PRF input through these variables if
316 available (NULL and 0 otherwise). Note that if the server
317 provides an opaque PRF input, the length must be the same as the
318 length of the client's opaque PRF input.
320 Note that the callback function will only be called when creating
321 a new session (session resumption can resume whatever was
322 previously negotiated), and will not be called in SSL 2.0
323 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
324 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
325 for applications that need to enforce opaque PRF input.
329 *) Update ssl code to support digests other than SHA1+MD5 for handshake
332 [Victor B. Wagner <vitus@cryptocom.ru>]
334 *) Add RFC4507 support to OpenSSL. This includes the corrections in
335 RFC4507bis. The encrypted ticket format is an encrypted encoded
336 SSL_SESSION structure, that way new session features are automatically
339 If a client application caches session in an SSL_SESSION structure
340 support is transparent because tickets are now stored in the encoded
343 The SSL_CTX structure automatically generates keys for ticket
344 protection in servers so again support should be possible
345 with no application modification.
347 If a client or server wishes to disable RFC4507 support then the option
348 SSL_OP_NO_TICKET can be set.
350 Add a TLS extension debugging callback to allow the contents of any client
351 or server extensions to be examined.
353 This work was sponsored by Google.
356 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
357 OpenSSL should now compile cleanly on gcc 4.2
358 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
360 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
361 support including streaming MAC support: this is required for GOST
363 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
365 *) Add option -stream to use PKCS#7 streaming in smime utility. New
366 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
367 to output in BER and PEM format.
370 *) Experimental support for use of HMAC via EVP_PKEY interface. This
371 allows HMAC to be handled via the EVP_DigestSign*() interface. The
372 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
373 ENGINE support for HMAC keys which are unextractable. New -mac and
374 -macopt options to dgst utility.
377 *) New option -sigopt to dgst utility. Update dgst to use
378 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
379 alternative signing paramaters such as X9.31 or PSS in the dgst
383 *) Change ssl_cipher_apply_rule(), the internal function that does
384 the work each time a ciphersuite string requests enabling
385 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
386 removing ("!foo+bar") a class of ciphersuites: Now it maintains
387 the order of disabled ciphersuites such that those ciphersuites
388 that most recently went from enabled to disabled not only stay
389 in order with respect to each other, but also have higher priority
390 than other disabled ciphersuites the next time ciphersuites are
393 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
394 the same ciphersuites as with "HIGH" alone, but in a specific
395 order where the PSK ciphersuites come first (since they are the
396 most recently disabled ciphersuites when "HIGH" is parsed).
398 Also, change ssl_create_cipher_list() (using this new
399 funcionality) such that between otherwise identical
400 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
404 *) Change ssl_create_cipher_list() so that it automatically
405 arranges the ciphersuites in reasonable order before starting
406 to process the rule string. Thus, the definition for "DEFAULT"
407 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
408 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
409 This makes it much easier to arrive at a reasonable default order
410 in applications for which anonymous ciphers are OK (meaning
411 that you can't actually use DEFAULT).
412 [Bodo Moeller; suggested by Victor Duchovni]
414 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
415 processing) into multiple integers instead of setting
416 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
417 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
418 (These masks as well as the individual bit definitions are hidden
419 away into the non-exported interface ssl/ssl_locl.h, so this
420 change to the definition of the SSL_CIPHER structure shouldn't
421 affect applications.) This give us more bits for each of these
422 categories, so there is no longer a need to coagulate AES128 and
423 AES256 into a single algorithm bit, and to coagulate Camellia128
424 and Camellia256 into a single algorithm bit, which has led to all
427 Thus, among other things, the kludge introduced in 0.9.7m and
428 0.9.8e for masking out AES256 independently of AES128 or masking
429 out Camellia256 independently of AES256 is not needed here in 0.9.9.
431 With the change, we also introduce new ciphersuite aliases that
432 so far were missing: "AES128", "AES256", "CAMELLIA128", and
436 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
437 Use the leftmost N bytes of the signature input if the input is
438 larger than the prime q (with N being the size in bytes of q).
441 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
442 it yet and it is largely untested.
445 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
448 *) Initial incomplete changes to avoid need for function casts in OpenSSL
449 some compilers (gcc 4.2 and later) reject their use. Safestack is
450 reimplemented. Update ASN1 to avoid use of legacy functions.
453 *) Win32/64 targets are linked with Winsock2.
456 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
457 to external functions. This can be used to increase CRL handling
458 efficiency especially when CRLs are very large by (for example) storing
459 the CRL revoked certificates in a database.
462 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
463 new CRLs added to a directory can be used. New command line option
464 -verify_return_error to s_client and s_server. This causes real errors
465 to be returned by the verify callback instead of carrying on no matter
466 what. This reflects the way a "real world" verify callback would behave.
469 *) GOST engine, supporting several GOST algorithms and public key formats.
470 Kindly donated by Cryptocom.
473 *) Partial support for Issuing Distribution Point CRL extension. CRLs
474 partitioned by DP are handled but no indirect CRL or reason partitioning
475 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
476 selected via a scoring technique which handles IDP and AKID in CRLs.
479 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
480 will ultimately be used for all verify operations: this will remove the
481 X509_STORE dependency on certificate verification and allow alternative
482 lookup methods. X509_STORE based implementations of these two callbacks.
485 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
486 Modify get_crl() to find a valid (unexpired) CRL if possible.
489 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
490 this would be called X509_CRL_cmp() but that name is already used by
491 a function that just compares CRL issuer names. Cache several CRL
492 extensions in X509_CRL structure and cache CRLDP in X509.
495 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
496 this maps equivalent X509_NAME structures into a consistent structure.
497 Name comparison can then be performed rapidly using memcmp().
500 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
504 *) Allow digests to supply their own micalg string for S/MIME type using
505 the ctrl EVP_MD_CTRL_MICALG.
508 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
509 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
510 ctrl. It can then customise the structure before and/or after signing
514 *) New function OBJ_add_sigid() to allow application defined signature OIDs
515 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
516 to free up any added signature OIDs.
519 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
520 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
521 digest and cipher tables. New options added to openssl utility:
522 list-message-digest-algorithms and list-cipher-algorithms.
525 *) Change the array representation of binary polynomials: the list
526 of degrees of non-zero coefficients is now terminated with -1.
527 Previously it was terminated with 0, which was also part of the
528 value; thus, the array representation was not applicable to
529 polynomials where t^0 has coefficient zero. This change makes
530 the array representation useful in a more general context.
533 *) Various modifications and fixes to SSL/TLS cipher string
534 handling. For ECC, the code now distinguishes between fixed ECDH
535 with RSA certificates on the one hand and with ECDSA certificates
536 on the other hand, since these are separate ciphersuites. The
537 unused code for Fortezza ciphersuites has been removed.
539 For consistency with EDH, ephemeral ECDH is now called "EECDH"
540 (not "ECDHE"). For consistency with the code for DH
541 certificates, use of ECDH certificates is now considered ECDH
542 authentication, not RSA or ECDSA authentication (the latter is
543 merely the CA's signing algorithm and not actively used in the
546 The temporary ciphersuite alias "ECCdraft" is no longer
547 available, and ECC ciphersuites are no longer excluded from "ALL"
548 and "DEFAULT". The following aliases now exist for RFC 4492
549 ciphersuites, most of these by analogy with the DH case:
551 kECDHr - ECDH cert, signed with RSA
552 kECDHe - ECDH cert, signed with ECDSA
553 kECDH - ECDH cert (signed with either RSA or ECDSA)
554 kEECDH - ephemeral ECDH
555 ECDH - ECDH cert or ephemeral ECDH
561 AECDH - anonymous ECDH
562 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
566 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
567 Use correct micalg parameters depending on digest(s) in signed message.
570 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
571 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
574 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
575 an engine to register a method. Add ENGINE lookups for methods and
576 functional reference processing.
579 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
580 EVP_{Sign,Verify}* which allow an application to customise the signature
584 *) New -resign option to smime utility. This adds one or more signers
585 to an existing PKCS#7 signedData structure. Also -md option to use an
586 alternative message digest algorithm for signing.
589 *) Tidy up PKCS#7 routines and add new functions to make it easier to
590 create PKCS7 structures containing multiple signers. Update smime
591 application to support multiple signers.
594 *) New -macalg option to pkcs12 utility to allow setting of an alternative
598 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
599 Reorganize PBE internals to lookup from a static table using NIDs,
600 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
601 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
602 PRF which will be automatically used with PBES2.
605 *) Replace the algorithm specific calls to generate keys in "req" with the
609 *) Update PKCS#7 enveloped data routines to use new API. This is now
610 supported by any public key method supporting the encrypt operation. A
611 ctrl is added to allow the public key algorithm to examine or modify
612 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
616 *) Add a ctrl to asn1 method to allow a public key algorithm to express
617 a default digest type to use. In most cases this will be SHA1 but some
618 algorithms (such as GOST) need to specify an alternative digest. The
619 return value indicates how strong the prefernce is 1 means optional and
620 2 is mandatory (that is it is the only supported type). Modify
621 ASN1_item_sign() to accept a NULL digest argument to indicate it should
622 use the default md. Update openssl utilities to use the default digest
623 type for signing if it is not explicitly indicated.
626 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
627 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
628 signing method from the key type. This effectively removes the link
629 between digests and public key types.
632 *) Add an OID cross reference table and utility functions. Its purpose is to
633 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
634 rsaEncryption. This will allow some of the algorithm specific hackery
635 needed to use the correct OID to be removed.
638 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
639 structures for PKCS7_sign(). They are now set up by the relevant public
643 *) Add provisional EC pkey method with support for ECDSA and ECDH.
646 *) Add support for key derivation (agreement) in the API, DH method and
650 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
651 public and private key formats. As a side effect these add additional
652 command line functionality not previously available: DSA signatures can be
653 generated and verified using pkeyutl and DH key support and generation in
658 [Oliver Tappe <zooey@hirschkaefer.de>]
660 *) New make target "install_html_docs" installs HTML renditions of the
662 [Oliver Tappe <zooey@hirschkaefer.de>]
664 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
665 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
666 support key and parameter generation and add initial key generation
667 functionality for RSA.
670 *) Add functions for main EVP_PKEY_method operations. The undocumented
671 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
672 EVP_PKEY_{encrypt,decrypt}_old.
675 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
676 key API, doesn't do much yet.
679 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
680 public key algorithms. New option to openssl utility:
681 "list-public-key-algorithms" to print out info.
684 *) Implement the Supported Elliptic Curves Extension for
685 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
688 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
689 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
692 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
693 utilities such as rsa, dsa, dsaparam etc except they process any key
697 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
698 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
699 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
703 *) Initial support for pluggable public key ASN1.
704 De-spaghettify the public key ASN1 handling. Move public and private
705 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
706 algorithm specific handling to a single module within the relevant
707 algorithm directory. Add functions to allow (near) opaque processing
708 of public and private key structures.
711 *) Implement the Supported Point Formats Extension for
712 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
715 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
716 for the psk identity [hint] and the psk callback functions to the
717 SSL_SESSION, SSL and SSL_CTX structure.
720 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
724 SSL_CTX_use_psk_identity_hint
725 SSL_get_psk_identity_hint
727 SSL_use_psk_identity_hint
729 [Mika Kousa and Pasi Eronen of Nokia Corporation]
731 *) Add RFC 3161 compliant time stamp request creation, response generation
732 and response verification functionality.
733 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
735 *) Add initial support for TLS extensions, specifically for the server_name
736 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
737 have new members for a host name. The SSL data structure has an
738 additional member SSL_CTX *initial_ctx so that new sessions can be
739 stored in that context to allow for session resumption, even after the
740 SSL has been switched to a new SSL_CTX in reaction to a client's
741 server_name extension.
743 New functions (subject to change):
746 SSL_get_servername_type()
749 New CTRL codes and macros (subject to change):
751 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
752 - SSL_CTX_set_tlsext_servername_callback()
753 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
754 - SSL_CTX_set_tlsext_servername_arg()
755 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
757 openssl s_client has a new '-servername ...' option.
759 openssl s_server has new options '-servername_host ...', '-cert2 ...',
760 '-key2 ...', '-servername_fatal' (subject to change). This allows
761 testing the HostName extension for a specific single host name ('-cert'
762 and '-key' remain fallbacks for handshakes without HostName
763 negotiation). If the unrecogninzed_name alert has to be sent, this by
764 default is a warning; it becomes fatal with the '-servername_fatal'
767 [Peter Sylvester, Remy Allais, Christophe Renou]
769 *) Whirlpool hash implementation is added.
772 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
773 bn(64,32). Because of instruction set limitations it doesn't have
774 any negative impact on performance. This was done mostly in order
775 to make it possible to share assembler modules, such as bn_mul_mont
776 implementations, between 32- and 64-bit builds without hassle.
779 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
780 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
784 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
785 dedicated Montgomery multiplication procedure, is introduced.
786 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
787 "64-bit" performance on certain 32-bit targets.
790 *) New option SSL_OP_NO_COMP to disable use of compression selectively
791 in SSL structures. New SSL ctrl to set maximum send fragment size.
792 Save memory by seeting the I/O buffer sizes dynamically instead of
793 using the maximum available value.
796 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
797 in addition to the text details.
800 *) Very, very preliminary EXPERIMENTAL support for printing of general
801 ASN1 structures. This currently produces rather ugly output and doesn't
802 handle several customised structures at all.
805 *) Integrated support for PVK file format and some related formats such
806 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
807 these in the 'rsa' and 'dsa' utilities.
810 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
813 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
814 place for the (very old) "NETSCAPE" format certificates which are now
815 handled using new ASN1 code equivalents.
818 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
819 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
820 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
823 *) Modify CRL distribution points extension code to print out previously
824 unsupported fields. Enhance extension setting code to allow setting of
828 *) Add print and set support for Issuing Distribution Point CRL extension.
831 *) Change 'Configure' script to enable Camellia by default.
834 Changes between 0.9.8l (?) and 0.9.8m (?) [xx XXX xxxx]
836 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
837 change when encrypting or decrypting.
840 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
841 connect (but not renegotiate) with servers which do not support RI.
842 Until RI is more widely deployed this option is enabled by default.
845 *) Add "missing" ssl ctrls to clear options and mode.
848 *) If client attempts to renegotiate and doesn't support RI respond with
849 a no_renegotiation alert as required by draft-ietf-tls-renegotiation.
850 Some renegotiating TLS clients will continue a connection gracefully
851 when they receive the alert. Unfortunately OpenSSL mishandled
852 this alert and would hang waiting for a server hello which it will never
853 receive. Now we treat a received no_renegotiation alert as a fatal
854 error. This is because applications requesting a renegotiation might well
855 expect it to succeed and would have no code in place to handle the server
856 denying it so the only safe thing to do is to terminate the connection.
859 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
860 peer supports secure renegotiation and 0 otherwise. Print out peer
861 renegotiation support in s_client/s_server.
864 *) Replace the highly broken and deprecated SPKAC certification method with
865 the updated NID creation version. This should correctly handle UTF8.
868 *) Implement draft-ietf-tls-renegotiation. Re-enable
869 renegotiation but require the extension as needed. Unfortunately,
870 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION turns out to be a
871 bad idea. It has been replaced by
872 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
873 SSL_CTX_set_options(). This is really not recommended unless you
874 know what you are doing.
875 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
877 *) Fixes to stateless session resumption handling. Use initial_ctx when
878 issuing and attempting to decrypt tickets in case it has changed during
879 servername handling. Use a non-zero length session ID when attempting
880 stateless session resumption: this makes it possible to determine if
881 a resumption has occurred immediately after receiving server hello
882 (several places in OpenSSL subtly assume this) instead of later in
886 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
887 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
888 fixes for a few places where the return code is not checked
890 [Julia Lawall <julia@diku.dk>]
892 *) Add --strict-warnings option to Configure script to include devteam
893 warnings in other configurations.
896 *) Add support for --libdir option and LIBDIR variable in makefiles. This
897 makes it possible to install openssl libraries in locations which
898 have names other than "lib", for example "/usr/lib64" which some
900 [Steve Henson, based on patch from Jeremy Utley]
902 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
903 X690 8.9.12 and can produce some misleading textual output of OIDs.
904 [Steve Henson, reported by Dan Kaminsky]
906 *) Delete MD2 from algorithm tables. This follows the recommendation in
907 several standards that it is not used in new applications due to
908 several cryptographic weaknesses. For binary compatibility reasons
909 the MD2 API is still compiled in by default.
912 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
916 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
917 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
919 [Guenter <lists@gknw.net>]
921 *) Fix the server certificate chain building code to use X509_verify_cert(),
922 it used to have an ad-hoc builder which was unable to cope with anything
923 other than a simple chain.
924 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
926 *) Don't check self signed certificate signatures in X509_verify_cert()
927 by default (a flag can override this): it just wastes time without
928 adding any security. As a useful side effect self signed root CAs
929 with non-FIPS digests are now usable in FIPS mode.
932 *) In dtls1_process_out_of_seq_message() the check if the current message
933 is already buffered was missing. For every new message was memory
934 allocated, allowing an attacker to perform an denial of service attack
935 with sending out of seq handshake messages until there is no memory
936 left. Additionally every future messege was buffered, even if the
937 sequence number made no sense and would be part of another handshake.
938 So only messages with sequence numbers less than 10 in advance will be
939 buffered. (CVE-2009-1378)
940 [Robin Seggelmann, discovered by Daniel Mentz]
942 *) Records are buffered if they arrive with a future epoch to be
943 processed after finishing the corresponding handshake. There is
944 currently no limitation to this buffer allowing an attacker to perform
945 a DOS attack with sending records with future epochs until there is no
946 memory left. This patch adds the pqueue_size() function to detemine
947 the size of a buffer and limits the record buffer to 100 entries.
949 [Robin Seggelmann, discovered by Daniel Mentz]
951 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
952 parent structure is freed. (CVE-2009-1379)
955 *) Handle non-blocking I/O properly in SSL_shutdown() call.
956 [Darryl Miles <darryl-mailinglists@netbauds.net>]
959 [Ilya O. <vrghost@gmail.com>]
961 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
963 *) Disable renegotiation completely - this fixes a severe security
964 problem (CVE-2009-3555) at the cost of breaking all
965 renegotiation. Renegotiation can be re-enabled by setting
966 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
967 run-time. This is really not recommended unless you know what
971 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
973 *) Don't set val to NULL when freeing up structures, it is freed up by
974 underlying code. If sizeof(void *) > sizeof(long) this can result in
975 zeroing past the valid field. (CVE-2009-0789)
976 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
978 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
979 checked correctly. This would allow some invalid signed attributes to
980 appear to verify correctly. (CVE-2009-0591)
981 [Ivan Nestlerode <inestlerode@us.ibm.com>]
983 *) Reject UniversalString and BMPString types with invalid lengths. This
984 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
985 a legal length. (CVE-2009-0590)
988 *) Set S/MIME signing as the default purpose rather than setting it
989 unconditionally. This allows applications to override it at the store
993 *) Permit restricted recursion of ASN1 strings. This is needed in practice
994 to handle some structures.
997 *) Improve efficiency of mem_gets: don't search whole buffer each time
999 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1001 *) New -hex option for openssl rand.
1004 *) Print out UTF8String and NumericString when parsing ASN1.
1007 *) Support NumericString type for name components.
1010 *) Allow CC in the environment to override the automatically chosen
1011 compiler. Note that nothing is done to ensure flags work with the
1015 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1017 *) Properly check EVP_VerifyFinal() and similar return values
1019 [Ben Laurie, Bodo Moeller, Google Security Team]
1021 *) Enable TLS extensions by default.
1024 *) Allow the CHIL engine to be loaded, whether the application is
1025 multithreaded or not. (This does not release the developer from the
1026 obligation to set up the dynamic locking callbacks.)
1027 [Sander Temme <sander@temme.net>]
1029 *) Use correct exit code if there is an error in dgst command.
1030 [Steve Henson; problem pointed out by Roland Dirlewanger]
1032 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1033 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1036 *) Add experimental JPAKE support, including demo authentication in
1037 s_client and s_server.
1040 *) Set the comparison function in v3_addr_canonize().
1041 [Rob Austein <sra@hactrn.net>]
1043 *) Add support for XMPP STARTTLS in s_client.
1044 [Philip Paeps <philip@freebsd.org>]
1046 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1047 to ensure that even with this option, only ciphersuites in the
1048 server's preference list will be accepted. (Note that the option
1049 applies only when resuming a session, so the earlier behavior was
1050 just about the algorithm choice for symmetric cryptography.)
1053 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1055 *) Fix NULL pointer dereference if a DTLS server received
1056 ChangeCipherSpec as first record (CVE-2009-1386).
1059 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1060 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1063 *) The fix in 0.9.8c that supposedly got rid of unsafe
1064 double-checked locking was incomplete for RSA blinding,
1065 addressing just one layer of what turns out to have been
1066 doubly unsafe triple-checked locking.
1068 So now fix this for real by retiring the MONT_HELPER macro
1069 in crypto/rsa/rsa_eay.c.
1071 [Bodo Moeller; problem pointed out by Marius Schilder]
1073 *) Various precautionary measures:
1075 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1077 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1078 (NB: This would require knowledge of the secret session ticket key
1079 to exploit, in which case you'd be SOL either way.)
1081 - Change bn_nist.c so that it will properly handle input BIGNUMs
1082 outside the expected range.
1084 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1087 [Neel Mehta, Bodo Moeller]
1089 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1090 the load fails. Useful for distros.
1091 [Ben Laurie and the FreeBSD team]
1093 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1096 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1099 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1101 This work was sponsored by Logica.
1104 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1105 keystores. Support for SSL/TLS client authentication too.
1106 Not compiled unless enable-capieng specified to Configure.
1108 This work was sponsored by Logica.
1111 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1112 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1113 attribute creation routines such as certifcate requests and PKCS#12
1117 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1119 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1120 handshake which could lead to a cilent crash as found using the
1121 Codenomicon TLS test suite (CVE-2008-1672)
1122 [Steve Henson, Mark Cox]
1124 *) Fix double free in TLS server name extensions which could lead to
1125 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1128 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1130 Clear the error queue to ensure that error entries left from
1131 older function calls do not interfere with the correct operation.
1132 [Lutz Jaenicke, Erik de Castro Lopo]
1134 *) Remove root CA certificates of commercial CAs:
1136 The OpenSSL project does not recommend any specific CA and does not
1137 have any policy with respect to including or excluding any CA.
1138 Therefore it does not make any sense to ship an arbitrary selection
1139 of root CA certificates with the OpenSSL software.
1142 *) RSA OAEP patches to fix two separate invalid memory reads.
1143 The first one involves inputs when 'lzero' is greater than
1144 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1145 before the beginning of from). The second one involves inputs where
1146 the 'db' section contains nothing but zeroes (there is a one-byte
1147 invalid read after the end of 'db').
1148 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1150 *) Partial backport from 0.9.9-dev:
1152 Introduce bn_mul_mont (dedicated Montgomery multiplication
1153 procedure) as a candidate for BIGNUM assembler implementation.
1154 While 0.9.9-dev uses assembler for various architectures, only
1155 x86_64 is available by default here in the 0.9.8 branch, and
1156 32-bit x86 is available through a compile-time setting.
1158 To try the 32-bit x86 assembler implementation, use Configure
1159 option "enable-montasm" (which exists only for this backport).
1161 As "enable-montasm" for 32-bit x86 disclaims code stability
1162 anyway, in this constellation we activate additional code
1163 backported from 0.9.9-dev for further performance improvements,
1164 namely BN_from_montgomery_word. (To enable this otherwise,
1165 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1167 [Andy Polyakov (backport partially by Bodo Moeller)]
1169 *) Add TLS session ticket callback. This allows an application to set
1170 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1171 values. This is useful for key rollover for example where several key
1172 sets may exist with different names.
1175 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1176 This was broken until now in 0.9.8 releases, such that the only way
1177 a registered ENGINE could be used (assuming it initialises
1178 successfully on the host) was to explicitly set it as the default
1179 for the relevant algorithms. This is in contradiction with 0.9.7
1180 behaviour and the documentation. With this fix, when an ENGINE is
1181 registered into a given algorithm's table of implementations, the
1182 'uptodate' flag is reset so that auto-discovery will be used next
1183 time a new context for that algorithm attempts to select an
1185 [Ian Lister (tweaked by Geoff Thorpe)]
1187 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1188 implemention in the following ways:
1190 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1193 Lack of BER streaming support means one pass streaming processing is
1194 only supported if data is detached: setting the streaming flag is
1195 ignored for embedded content.
1197 CMS support is disabled by default and must be explicitly enabled
1198 with the enable-cms configuration option.
1201 *) Update the GMP engine glue to do direct copies between BIGNUM and
1202 mpz_t when openssl and GMP use the same limb size. Otherwise the
1203 existing "conversion via a text string export" trick is still used.
1204 [Paul Sheer <paulsheer@gmail.com>]
1206 *) Zlib compression BIO. This is a filter BIO which compressed and
1207 uncompresses any data passed through it.
1210 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1211 RFC3394 compatible AES key wrapping.
1214 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1215 sets string data without copying. X509_ALGOR_set0() and
1216 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1217 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1218 from an X509_ATTRIBUTE structure optionally checking it occurs only
1219 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1223 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1224 to get the expected BN_FLG_CONSTTIME behavior.
1225 [Bodo Moeller (Google)]
1229 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1230 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1231 - added some more tests to do_tests.pl
1232 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1233 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1234 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1235 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1236 - various changes to netware.pl to enable gcc-cross builds on Win32
1238 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1239 - various changes to fix missing prototype warnings
1240 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1241 - added AES, WHIRLPOOL and CPUID assembler code to build files
1242 - added missing AES assembler make rules to mk1mf.pl
1243 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1244 [Guenter Knauf <eflash@gmx.net>]
1246 *) Implement certificate status request TLS extension defined in RFC3546.
1247 A client can set the appropriate parameters and receive the encoded
1248 OCSP response via a callback. A server can query the supplied parameters
1249 and set the encoded OCSP response in the callback. Add simplified examples
1250 to s_client and s_server.
1253 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1255 *) Fix various bugs:
1256 + Binary incompatibility of ssl_ctx_st structure
1257 + DTLS interoperation with non-compliant servers
1258 + Don't call get_session_cb() without proposed session
1259 + Fix ia64 assembler code
1260 [Andy Polyakov, Steve Henson]
1262 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1264 *) DTLS Handshake overhaul. There were longstanding issues with
1265 OpenSSL DTLS implementation, which were making it impossible for
1266 RFC 4347 compliant client to communicate with OpenSSL server.
1267 Unfortunately just fixing these incompatibilities would "cut off"
1268 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1269 server keeps tolerating non RFC compliant syntax. The opposite is
1270 not true, 0.9.8f client can not communicate with earlier server.
1271 This update even addresses CVE-2007-4995.
1274 *) Changes to avoid need for function casts in OpenSSL: some compilers
1275 (gcc 4.2 and later) reject their use.
1276 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1279 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1280 RFC4507bis. The encrypted ticket format is an encrypted encoded
1281 SSL_SESSION structure, that way new session features are automatically
1284 If a client application caches session in an SSL_SESSION structure
1285 support is transparent because tickets are now stored in the encoded
1288 The SSL_CTX structure automatically generates keys for ticket
1289 protection in servers so again support should be possible
1290 with no application modification.
1292 If a client or server wishes to disable RFC4507 support then the option
1293 SSL_OP_NO_TICKET can be set.
1295 Add a TLS extension debugging callback to allow the contents of any client
1296 or server extensions to be examined.
1298 This work was sponsored by Google.
1301 *) Add initial support for TLS extensions, specifically for the server_name
1302 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1303 have new members for a host name. The SSL data structure has an
1304 additional member SSL_CTX *initial_ctx so that new sessions can be
1305 stored in that context to allow for session resumption, even after the
1306 SSL has been switched to a new SSL_CTX in reaction to a client's
1307 server_name extension.
1309 New functions (subject to change):
1311 SSL_get_servername()
1312 SSL_get_servername_type()
1315 New CTRL codes and macros (subject to change):
1317 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1318 - SSL_CTX_set_tlsext_servername_callback()
1319 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1320 - SSL_CTX_set_tlsext_servername_arg()
1321 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1323 openssl s_client has a new '-servername ...' option.
1325 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1326 '-key2 ...', '-servername_fatal' (subject to change). This allows
1327 testing the HostName extension for a specific single host name ('-cert'
1328 and '-key' remain fallbacks for handshakes without HostName
1329 negotiation). If the unrecogninzed_name alert has to be sent, this by
1330 default is a warning; it becomes fatal with the '-servername_fatal'
1333 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1335 *) Add AES and SSE2 assembly language support to VC++ build.
1338 *) Mitigate attack on final subtraction in Montgomery reduction.
1341 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1342 (which previously caused an internal error).
1345 *) Squeeze another 10% out of IGE mode when in != out.
1348 *) AES IGE mode speedup.
1349 [Dean Gaudet (Google)]
1351 *) Add the Korean symmetric 128-bit cipher SEED (see
1352 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1353 add SEED ciphersuites from RFC 4162:
1355 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1356 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1357 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1358 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1360 To minimize changes between patchlevels in the OpenSSL 0.9.8
1361 series, SEED remains excluded from compilation unless OpenSSL
1362 is configured with 'enable-seed'.
1363 [KISA, Bodo Moeller]
1365 *) Mitigate branch prediction attacks, which can be practical if a
1366 single processor is shared, allowing a spy process to extract
1367 information. For detailed background information, see
1368 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1369 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1370 and Necessary Software Countermeasures"). The core of the change
1371 are new versions BN_div_no_branch() and
1372 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1373 respectively, which are slower, but avoid the security-relevant
1374 conditional branches. These are automatically called by BN_div()
1375 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1376 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1377 remove a conditional branch.
1379 BN_FLG_CONSTTIME is the new name for the previous
1380 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1381 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1382 in the exponent causes BN_mod_exp_mont() to use the alternative
1383 implementation in BN_mod_exp_mont_consttime().) The old name
1384 remains as a deprecated alias.
1386 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1387 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1388 constant-time implementations for more than just exponentiation.
1389 Here too the old name is kept as a deprecated alias.
1391 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1392 the BN_BLINDING structure gets an independent copy of the
1393 modulus. This means that the previous "BIGNUM *m" argument to
1394 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1395 essentially becomes "const BIGNUM *m", although we can't actually
1396 change this in the header file before 0.9.9. It allows
1397 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1398 enable BN_FLG_CONSTTIME.
1400 [Matthew D Wood (Intel Corp)]
1402 *) In the SSL/TLS server implementation, be strict about session ID
1403 context matching (which matters if an application uses a single
1404 external cache for different purposes). Previously,
1405 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1406 set. This did ensure strict client verification, but meant that,
1407 with applications using a single external cache for quite
1408 different requirements, clients could circumvent ciphersuite
1409 restrictions for a given session ID context by starting a session
1410 in a different context.
1413 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1414 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1415 authentication-only ciphersuites.
1418 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1419 not complete and could lead to a possible single byte overflow
1420 (CVE-2007-5135) [Ben Laurie]
1422 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1424 *) Since AES128 and AES256 (and similarly Camellia128 and
1425 Camellia256) share a single mask bit in the logic of
1426 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1427 kludge to work properly if AES128 is available and AES256 isn't
1428 (or if Camellia128 is available and Camellia256 isn't).
1431 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1432 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1433 When a point or a seed is encoded in a BIT STRING, we need to
1434 prevent the removal of trailing zero bits to get the proper DER
1435 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1436 of a NamedBitList, for which trailing 0 bits need to be removed.)
1439 *) Have SSL/TLS server implementation tolerate "mismatched" record
1440 protocol version while receiving ClientHello even if the
1441 ClientHello is fragmented. (The server can't insist on the
1442 particular protocol version it has chosen before the ServerHello
1443 message has informed the client about his choice.)
1446 *) Add RFC 3779 support.
1447 [Rob Austein for ARIN, Ben Laurie]
1449 *) Load error codes if they are not already present instead of using a
1450 static variable. This allows them to be cleanly unloaded and reloaded.
1451 Improve header file function name parsing.
1454 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1455 or CAPABILITY handshake as required by RFCs.
1458 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1460 *) Introduce limits to prevent malicious keys being able to
1461 cause a denial of service. (CVE-2006-2940)
1462 [Steve Henson, Bodo Moeller]
1464 *) Fix ASN.1 parsing of certain invalid structures that can result
1465 in a denial of service. (CVE-2006-2937) [Steve Henson]
1467 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1468 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1470 *) Fix SSL client code which could crash if connecting to a
1471 malicious SSLv2 server. (CVE-2006-4343)
1472 [Tavis Ormandy and Will Drewry, Google Security Team]
1474 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1475 match only those. Before that, "AES256-SHA" would be interpreted
1476 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1477 the same strength classification in 0.9.7h) as we currently only
1478 have a single AES bit in the ciphersuite description bitmap.
1479 That change, however, also applied to ciphersuite strings such as
1480 "RC4-MD5" that intentionally matched multiple ciphersuites --
1481 namely, SSL 2.0 ciphersuites in addition to the more common ones
1482 from SSL 3.0/TLS 1.0.
1484 So we change the selection algorithm again: Naming an explicit
1485 ciphersuite selects this one ciphersuite, and any other similar
1486 ciphersuite (same bitmap) from *other* protocol versions.
1487 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1488 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1490 Since SSL 2.0 does not have any ciphersuites for which the
1491 128/256 bit distinction would be relevant, this works for now.
1492 The proper fix will be to use different bits for AES128 and
1493 AES256, which would have avoided the problems from the beginning;
1494 however, bits are scarce, so we can only do this in a new release
1495 (not just a patchlevel) when we can change the SSL_CIPHER
1496 definition to split the single 'unsigned long mask' bitmap into
1497 multiple values to extend the available space.
1501 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1503 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1504 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1506 *) Add AES IGE and biIGE modes.
1509 *) Change the Unix randomness entropy gathering to use poll() when
1510 possible instead of select(), since the latter has some
1511 undesirable limitations.
1512 [Darryl Miles via Richard Levitte and Bodo Moeller]
1514 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1515 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1516 cannot be implicitly activated as part of, e.g., the "AES" alias.
1517 However, please upgrade to OpenSSL 0.9.9[-dev] for
1518 non-experimental use of the ECC ciphersuites to get TLS extension
1519 support, which is required for curve and point format negotiation
1520 to avoid potential handshake problems.
1523 *) Disable rogue ciphersuites:
1525 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1526 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1527 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1529 The latter two were purportedly from
1530 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1533 Also deactivate the remaining ciphersuites from
1534 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1535 unofficial, and the ID has long expired.
1538 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1539 dual-core machines) and other potential thread-safety issues.
1542 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1543 versions), which is now available for royalty-free use
1544 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1545 Also, add Camellia TLS ciphersuites from RFC 4132.
1547 To minimize changes between patchlevels in the OpenSSL 0.9.8
1548 series, Camellia remains excluded from compilation unless OpenSSL
1549 is configured with 'enable-camellia'.
1552 *) Disable the padding bug check when compression is in use. The padding
1553 bug check assumes the first packet is of even length, this is not
1554 necessarily true if compresssion is enabled and can result in false
1555 positives causing handshake failure. The actual bug test is ancient
1556 code so it is hoped that implementations will either have fixed it by
1557 now or any which still have the bug do not support compression.
1560 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1562 *) When applying a cipher rule check to see if string match is an explicit
1563 cipher suite and only match that one cipher suite if it is.
1566 *) Link in manifests for VC++ if needed.
1567 [Austin Ziegler <halostatue@gmail.com>]
1569 *) Update support for ECC-based TLS ciphersuites according to
1570 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1571 TLS extensions, which are supported starting with the 0.9.9
1572 branch, not in the OpenSSL 0.9.8 branch).
1575 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1576 opaque EVP_CIPHER_CTX handling.
1579 *) Fixes and enhancements to zlib compression code. We now only use
1580 "zlib1.dll" and use the default __cdecl calling convention on Win32
1581 to conform with the standards mentioned here:
1582 http://www.zlib.net/DLL_FAQ.txt
1583 Static zlib linking now works on Windows and the new --with-zlib-include
1584 --with-zlib-lib options to Configure can be used to supply the location
1585 of the headers and library. Gracefully handle case where zlib library
1589 *) Several fixes and enhancements to the OID generation code. The old code
1590 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1591 handle numbers larger than ULONG_MAX, truncated printing and had a
1592 non standard OBJ_obj2txt() behaviour.
1595 *) Add support for building of engines under engine/ as shared libraries
1596 under VC++ build system.
1599 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1600 Hopefully, we will not see any false combination of paths any more.
1603 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1605 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1606 (part of SSL_OP_ALL). This option used to disable the
1607 countermeasure against man-in-the-middle protocol-version
1608 rollback in the SSL 2.0 server implementation, which is a bad
1609 idea. (CVE-2005-2969)
1611 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1612 for Information Security, National Institute of Advanced Industrial
1613 Science and Technology [AIST], Japan)]
1615 *) Add two function to clear and return the verify parameter flags.
1618 *) Keep cipherlists sorted in the source instead of sorting them at
1619 runtime, thus removing the need for a lock.
1622 *) Avoid some small subgroup attacks in Diffie-Hellman.
1623 [Nick Mathewson and Ben Laurie]
1625 *) Add functions for well-known primes.
1628 *) Extended Windows CE support.
1629 [Satoshi Nakamura and Andy Polyakov]
1631 *) Initialize SSL_METHOD structures at compile time instead of during
1632 runtime, thus removing the need for a lock.
1635 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1636 attempting to decrypt each encrypted key in turn. Add support to
1640 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1642 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1645 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1648 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1649 key into the same file any more.
1652 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1655 *) Add -utf8 command line and config file option to 'ca'.
1656 [Stefan <stf@udoma.org]
1658 *) Removed the macro des_crypt(), as it seems to conflict with some
1659 libraries. Use DES_crypt().
1662 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1663 involves renaming the source and generated shared-libs for
1664 both. The engines will accept the corrected or legacy ids
1665 ('ncipher' and '4758_cca' respectively) when binding. NB,
1666 this only applies when building 'shared'.
1667 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1669 *) Add attribute functions to EVP_PKEY structure. Modify
1670 PKCS12_create() to recognize a CSP name attribute and
1671 use it. Make -CSP option work again in pkcs12 utility.
1674 *) Add new functionality to the bn blinding code:
1675 - automatic re-creation of the BN_BLINDING parameters after
1676 a fixed number of uses (currently 32)
1677 - add new function for parameter creation
1678 - introduce flags to control the update behaviour of the
1679 BN_BLINDING parameters
1680 - hide BN_BLINDING structure
1681 Add a second BN_BLINDING slot to the RSA structure to improve
1682 performance when a single RSA object is shared among several
1686 *) Add support for DTLS.
1687 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1689 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1690 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1693 *) Remove buggy and incompletet DH cert support from
1694 ssl/ssl_rsa.c and ssl/s3_both.c
1697 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1698 the apps/openssl applications.
1701 *) Compile clean with "-Wall -Wmissing-prototypes
1702 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1703 DEBUG_SAFESTACK must also be set.
1706 *) Change ./Configure so that certain algorithms can be disabled by default.
1707 The new counterpiece to "no-xxx" is "enable-xxx".
1709 The patented RC5 and MDC2 algorithms will now be disabled unless
1710 "enable-rc5" and "enable-mdc2", respectively, are specified.
1712 (IDEA remains enabled despite being patented. This is because IDEA
1713 is frequently required for interoperability, and there is no license
1714 fee for non-commercial use. As before, "no-idea" can be used to
1715 avoid this algorithm.)
1719 *) Add processing of proxy certificates (see RFC 3820). This work was
1720 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1721 EGEE (Enabling Grids for E-science in Europe).
1724 *) RC4 performance overhaul on modern architectures/implementations, such
1725 as Intel P4, IA-64 and AMD64.
1728 *) New utility extract-section.pl. This can be used specify an alternative
1729 section number in a pod file instead of having to treat each file as
1730 a separate case in Makefile. This can be done by adding two lines to the
1733 =for comment openssl_section:XXX
1735 The blank line is mandatory.
1739 *) New arguments -certform, -keyform and -pass for s_client and s_server
1740 to allow alternative format key and certificate files and passphrase
1744 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1745 update associated structures and add various utility functions.
1747 Add new policy related verify parameters, include policy checking in
1748 standard verify code. Enhance 'smime' application with extra parameters
1749 to support policy checking and print out.
1752 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1753 Nehemiah processors. These extensions support AES encryption in hardware
1754 as well as RNG (though RNG support is currently disabled).
1755 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1757 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1760 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1761 [Andy Polyakov and a number of other people]
1763 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1764 implementation contributed by IBM.
1765 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1767 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1768 exponent rather than 'unsigned long'. There is a corresponding change to
1769 the new 'rsa_keygen' element of the RSA_METHOD structure.
1770 [Jelte Jansen, Geoff Thorpe]
1772 *) Functionality for creating the initial serial number file is now
1773 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1775 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1776 number file to 1, which is bound to cause problems. To avoid
1777 the problems while respecting compatibility between different 0.9.7
1778 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1779 CA.pl for serial number initialization. With the new release 0.9.8,
1780 we can fix the problem directly in the 'ca' utility.)
1783 *) Reduced header interdepencies by declaring more opaque objects in
1784 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1785 give fewer recursive includes, which could break lazy source code - so
1786 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1787 developers should define this symbol when building and using openssl to
1788 ensure they track the recommended behaviour, interfaces, [etc], but
1789 backwards-compatible behaviour prevails when this isn't defined.
1792 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1795 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1796 This will generate a random key of the appropriate length based on the
1797 cipher context. The EVP_CIPHER can provide its own random key generation
1798 routine to support keys of a specific form. This is used in the des and
1799 3des routines to generate a key of the correct parity. Update S/MIME
1800 code to use new functions and hence generate correct parity DES keys.
1801 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1802 valid (weak or incorrect parity).
1805 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1806 as looking them up. This is useful when the verified structure may contain
1807 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1808 present unless the new PKCS7_NO_CRL flag is asserted.
1811 *) Extend ASN1 oid configuration module. It now additionally accepts the
1814 shortName = some long name, 1.2.3.4
1817 *) Reimplemented the BN_CTX implementation. There is now no more static
1818 limitation on the number of variables it can handle nor the depth of the
1819 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1820 information can now expand as required, and rather than having a single
1821 static array of bignums, BN_CTX now uses a linked-list of such arrays
1822 allowing it to expand on demand whilst maintaining the usefulness of
1823 BN_CTX's "bundling".
1826 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1827 to allow all RSA operations to function using a single BN_CTX.
1830 *) Preliminary support for certificate policy evaluation and checking. This
1831 is initially intended to pass the tests outlined in "Conformance Testing
1832 of Relying Party Client Certificate Path Processing Logic" v1.07.
1835 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1836 remained unused and not that useful. A variety of other little bignum
1837 tweaks and fixes have also been made continuing on from the audit (see
1841 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1842 associated ASN1, EVP and SSL functions and old ASN1 macros.
1845 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1846 and this should never fail. So the return value from the use of
1847 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1848 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1851 *) BN_CTX_get() should return zero-valued bignums, providing the same
1852 initialised value as BN_new().
1853 [Geoff Thorpe, suggested by Ulf Möller]
1855 *) Support for inhibitAnyPolicy certificate extension.
1858 *) An audit of the BIGNUM code is underway, for which debugging code is
1859 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1860 is considered valid when processing BIGNUMs, and causes execution to
1861 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1862 further steps are taken to deliberately pollute unused data in BIGNUM
1863 structures to try and expose faulty code further on. For now, openssl will
1864 (in its default mode of operation) continue to tolerate the inconsistent
1865 forms that it has tolerated in the past, but authors and packagers should
1866 consider trying openssl and their own applications when compiled with
1867 these debugging symbols defined. It will help highlight potential bugs in
1868 their own code, and will improve the test coverage for OpenSSL itself. At
1869 some point, these tighter rules will become openssl's default to improve
1870 maintainability, though the assert()s and other overheads will remain only
1871 in debugging configurations. See bn.h for more details.
1872 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1874 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1875 that can only be obtained through BN_CTX_new() (which implicitly
1876 initialises it). The presence of this function only made it possible
1877 to overwrite an existing structure (and cause memory leaks).
1880 *) Because of the callback-based approach for implementing LHASH as a
1881 template type, lh_insert() adds opaque objects to hash-tables and
1882 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1883 to clean up those corresponding objects before destroying the hash table
1884 (and losing the object pointers). So some over-zealous constifications in
1885 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1886 objects as "const" and the lh_doall[_arg] callback wrappers are not
1887 prototyped to have "const" restrictions on the object pointers they are
1888 given (and so aren't required to cast them away any more).
1891 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1892 (speed) prefers to use its own implementation. The two implementations
1893 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1894 its object type properly exposed (MS_TM) instead of casting to/from "char
1895 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1896 aren't necessarily the greatest nomenclatures - but this is what was used
1897 internally to the implementation so I've used that for now.
1900 *) Ensure that deprecated functions do not get compiled when
1901 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1902 the self-tests were still using deprecated key-generation functions so
1903 these have been updated also.
1906 *) Reorganise PKCS#7 code to separate the digest location functionality
1907 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1908 New function PKCS7_set_digest() to set the digest type for PKCS#7
1909 digestedData type. Add additional code to correctly generate the
1910 digestedData type and add support for this type in PKCS7 initialization
1914 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1915 structure of type "other".
1918 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1919 sure the loop does correctly stop and breaking ("division by zero")
1920 modulus operations are not performed. The (pre-generated) prime
1921 table crypto/bn/bn_prime.h was already correct, but it could not be
1922 re-generated on some platforms because of the "division by zero"
1923 situation in the script.
1924 [Ralf S. Engelschall]
1926 *) Update support for ECC-based TLS ciphersuites according to
1927 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1928 SHA-1 now is only used for "small" curves (where the
1929 representation of a field element takes up to 24 bytes); for
1930 larger curves, the field element resulting from ECDH is directly
1931 used as premaster secret.
1932 [Douglas Stebila (Sun Microsystems Laboratories)]
1934 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1935 curve secp160r1 to the tests.
1936 [Douglas Stebila (Sun Microsystems Laboratories)]
1938 *) Add the possibility to load symbols globally with DSO.
1939 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1941 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1942 control of the error stack.
1945 *) Add support for STORE in ENGINE.
1948 *) Add the STORE type. The intention is to provide a common interface
1949 to certificate and key stores, be they simple file-based stores, or
1950 HSM-type store, or LDAP stores, or...
1951 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1954 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1955 pass a list of arguments to any function as well as provide a way
1956 for a function to pass data back to the caller.
1959 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1960 works like BUF_strdup() but can be used to duplicate a portion of
1961 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1965 *) Add the function sk_find_ex() which works like sk_find(), but will
1966 return an index to an element even if an exact match couldn't be
1967 found. The index is guaranteed to point at the element where the
1968 searched-for key would be inserted to preserve sorting order.
1971 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1972 takes an extra flags argument for optional functionality. Currently,
1973 the following flags are defined:
1975 OBJ_BSEARCH_VALUE_ON_NOMATCH
1976 This one gets OBJ_bsearch_ex() to return a pointer to the first
1977 element where the comparing function returns a negative or zero
1980 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1981 This one gets OBJ_bsearch_ex() to return a pointer to the first
1982 element where the comparing function returns zero. This is useful
1983 if there are more than one element where the comparing function
1987 *) Make it possible to create self-signed certificates with 'openssl ca'
1988 in such a way that the self-signed certificate becomes part of the
1989 CA database and uses the same mechanisms for serial number generation
1990 as all other certificate signing. The new flag '-selfsign' enables
1991 this functionality. Adapt CA.sh and CA.pl.in.
1994 *) Add functionality to check the public key of a certificate request
1995 against a given private. This is useful to check that a certificate
1996 request can be signed by that key (self-signing).
1999 *) Make it possible to have multiple active certificates with the same
2000 subject in the CA index file. This is done only if the keyword
2001 'unique_subject' is set to 'no' in the main CA section (default
2002 if 'CA_default') of the configuration file. The value is saved
2003 with the database itself in a separate index attribute file,
2004 named like the index file with '.attr' appended to the name.
2007 *) Generate muti valued AVAs using '+' notation in config files for
2011 *) Support for nameConstraints certificate extension.
2014 *) Support for policyConstraints certificate extension.
2017 *) Support for policyMappings certificate extension.
2020 *) Make sure the default DSA_METHOD implementation only uses its
2021 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2022 and change its own handlers to be NULL so as to remove unnecessary
2023 indirection. This lets alternative implementations fallback to the
2024 default implementation more easily.
2027 *) Support for directoryName in GeneralName related extensions
2031 *) Make it possible to link applications using Makefile.shared.
2032 Make that possible even when linking against static libraries!
2035 *) Support for single pass processing for S/MIME signing. This now
2036 means that S/MIME signing can be done from a pipe, in addition
2037 cleartext signing (multipart/signed type) is effectively streaming
2038 and the signed data does not need to be all held in memory.
2040 This is done with a new flag PKCS7_STREAM. When this flag is set
2041 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2042 is done after the data is output (and digests calculated) in
2043 SMIME_write_PKCS7().
2046 *) Add full support for -rpath/-R, both in shared libraries and
2047 applications, at least on the platforms where it's known how
2051 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2052 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2053 will now compute a table of multiples of the generator that
2054 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2055 faster (notably in the case of a single point multiplication,
2056 scalar * generator).
2057 [Nils Larsch, Bodo Moeller]
2059 *) IPv6 support for certificate extensions. The various extensions
2060 which use the IP:a.b.c.d can now take IPv6 addresses using the
2061 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2065 *) Added an ENGINE that implements RSA by performing private key
2066 exponentiations with the GMP library. The conversions to and from
2067 GMP's mpz_t format aren't optimised nor are any montgomery forms
2068 cached, and on x86 it appears OpenSSL's own performance has caught up.
2069 However there are likely to be other architectures where GMP could
2070 provide a boost. This ENGINE is not built in by default, but it can be
2071 specified at Configure time and should be accompanied by the necessary
2072 linker additions, eg;
2073 ./config -DOPENSSL_USE_GMP -lgmp
2076 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2077 testing availability of engines with "-t" - the old behaviour is
2078 produced by increasing the feature's verbosity with "-tt".
2081 *) ECDSA routines: under certain error conditions uninitialized BN objects
2082 could be freed. Solution: make sure initialization is performed early
2083 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2087 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2088 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2089 software implementations. For DSA and DH, parameter generation can
2090 also be overriden by providing the appropriate method callbacks.
2093 *) Change the "progress" mechanism used in key-generation and
2094 primality testing to functions that take a new BN_GENCB pointer in
2095 place of callback/argument pairs. The new API functions have "_ex"
2096 postfixes and the older functions are reimplemented as wrappers for
2097 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2098 declarations of the old functions to help (graceful) attempts to
2099 migrate to the new functions. Also, the new key-generation API
2100 functions operate on a caller-supplied key-structure and return
2101 success/failure rather than returning a key or NULL - this is to
2102 help make "keygen" another member function of RSA_METHOD etc.
2104 Example for using the new callback interface:
2106 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2110 BN_GENCB_set(&my_cb, my_callback, my_arg);
2112 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2113 /* For the meaning of a, b in calls to my_callback(), see the
2114 * documentation of the function that calls the callback.
2115 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2116 * my_callback should return 1 if it wants BN_is_prime_ex()
2117 * to continue, or 0 to stop.
2122 *) Change the ZLIB compression method to be stateful, and make it
2123 available to TLS with the number defined in
2124 draft-ietf-tls-compression-04.txt.
2127 *) Add the ASN.1 structures and functions for CertificatePair, which
2128 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2130 CertificatePair ::= SEQUENCE {
2131 forward [0] Certificate OPTIONAL,
2132 reverse [1] Certificate OPTIONAL,
2133 -- at least one of the pair shall be present -- }
2135 Also implement the PEM functions to read and write certificate
2136 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2138 This needed to be defined, mostly for the sake of the LDAP
2139 attribute crossCertificatePair, but may prove useful elsewhere as
2143 *) Make it possible to inhibit symlinking of shared libraries in
2144 Makefile.shared, for Cygwin's sake.
2147 *) Extend the BIGNUM API by creating a function
2148 void BN_set_negative(BIGNUM *a, int neg);
2149 and a macro that behave like
2150 int BN_is_negative(const BIGNUM *a);
2152 to avoid the need to access 'a->neg' directly in applications.
2155 *) Implement fast modular reduction for pseudo-Mersenne primes
2156 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2157 EC_GROUP_new_curve_GFp() will now automatically use this
2159 [Nils Larsch <nla@trustcenter.de>]
2161 *) Add new lock type (CRYPTO_LOCK_BN).
2164 *) Change the ENGINE framework to automatically load engines
2165 dynamically from specific directories unless they could be
2166 found to already be built in or loaded. Move all the
2167 current engines except for the cryptodev one to a new
2169 The engines in engines/ are built as shared libraries if
2170 the "shared" options was given to ./Configure or ./config.
2171 Otherwise, they are inserted in libcrypto.a.
2172 /usr/local/ssl/engines is the default directory for dynamic
2173 engines, but that can be overriden at configure time through
2174 the usual use of --prefix and/or --openssldir, and at run
2175 time with the environment variable OPENSSL_ENGINES.
2176 [Geoff Thorpe and Richard Levitte]
2178 *) Add Makefile.shared, a helper makefile to build shared
2179 libraries. Addapt Makefile.org.
2182 *) Add version info to Win32 DLLs.
2183 [Peter 'Luna' Runestig" <peter@runestig.com>]
2185 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2186 can be added using this API to created arbitrary PKCS#12
2187 files while avoiding the low level API.
2189 New options to PKCS12_create(), key or cert can be NULL and
2190 will then be omitted from the output file. The encryption
2191 algorithm NIDs can be set to -1 for no encryption, the mac
2192 iteration count can be set to 0 to omit the mac.
2194 Enhance pkcs12 utility by making the -nokeys and -nocerts
2195 options work when creating a PKCS#12 file. New option -nomac
2196 to omit the mac, NONE can be set for an encryption algorithm.
2197 New code is modified to use the enhanced PKCS12_create()
2198 instead of the low level API.
2201 *) Extend ASN1 encoder to support indefinite length constructed
2202 encoding. This can output sequences tags and octet strings in
2203 this form. Modify pk7_asn1.c to support indefinite length
2204 encoding. This is experimental and needs additional code to
2205 be useful, such as an ASN1 bio and some enhanced streaming
2208 Extend template encode functionality so that tagging is passed
2209 down to the template encoder.
2212 *) Let 'openssl req' fail if an argument to '-newkey' is not
2213 recognized instead of using RSA as a default.
2216 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2217 As these are not official, they are not included in "ALL";
2218 the "ECCdraft" ciphersuite group alias can be used to select them.
2219 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2221 *) Add ECDH engine support.
2222 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2224 *) Add ECDH in new directory crypto/ecdh/.
2225 [Douglas Stebila (Sun Microsystems Laboratories)]
2227 *) Let BN_rand_range() abort with an error after 100 iterations
2228 without success (which indicates a broken PRNG).
2231 *) Change BN_mod_sqrt() so that it verifies that the input value
2232 is really the square of the return value. (Previously,
2233 BN_mod_sqrt would show GIGO behaviour.)
2236 *) Add named elliptic curves over binary fields from X9.62, SECG,
2237 and WAP/WTLS; add OIDs that were still missing.
2239 [Sheueling Chang Shantz and Douglas Stebila
2240 (Sun Microsystems Laboratories)]
2242 *) Extend the EC library for elliptic curves over binary fields
2243 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2246 EC_GF2m_simple_method
2250 EC_GROUP_new_curve_GF2m
2251 EC_GROUP_set_curve_GF2m
2252 EC_GROUP_get_curve_GF2m
2253 EC_POINT_set_affine_coordinates_GF2m
2254 EC_POINT_get_affine_coordinates_GF2m
2255 EC_POINT_set_compressed_coordinates_GF2m
2257 Point compression for binary fields is disabled by default for
2258 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2261 As binary polynomials are represented as BIGNUMs, various members
2262 of the EC_GROUP and EC_POINT data structures can be shared
2263 between the implementations for prime fields and binary fields;
2264 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2265 are essentially identical to their ..._GFp counterparts.
2266 (For simplicity, the '..._GFp' prefix has been dropped from
2267 various internal method names.)
2269 An internal 'field_div' method (similar to 'field_mul' and
2270 'field_sqr') has been added; this is used only for binary fields.
2272 [Sheueling Chang Shantz and Douglas Stebila
2273 (Sun Microsystems Laboratories)]
2275 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2276 through methods ('mul', 'precompute_mult').
2278 The generic implementations (now internally called 'ec_wNAF_mul'
2279 and 'ec_wNAF_precomputed_mult') remain the default if these
2280 methods are undefined.
2282 [Sheueling Chang Shantz and Douglas Stebila
2283 (Sun Microsystems Laboratories)]
2285 *) New function EC_GROUP_get_degree, which is defined through
2286 EC_METHOD. For curves over prime fields, this returns the bit
2287 length of the modulus.
2289 [Sheueling Chang Shantz and Douglas Stebila
2290 (Sun Microsystems Laboratories)]
2292 *) New functions EC_GROUP_dup, EC_POINT_dup.
2293 (These simply call ..._new and ..._copy).
2295 [Sheueling Chang Shantz and Douglas Stebila
2296 (Sun Microsystems Laboratories)]
2298 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2299 Polynomials are represented as BIGNUMs (where the sign bit is not
2300 used) in the following functions [macros]:
2303 BN_GF2m_sub [= BN_GF2m_add]
2304 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2305 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2306 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2308 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2309 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2310 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2311 BN_GF2m_cmp [= BN_ucmp]
2313 (Note that only the 'mod' functions are actually for fields GF(2^m).
2314 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2316 For some functions, an the irreducible polynomial defining a
2317 field can be given as an 'unsigned int[]' with strictly
2318 decreasing elements giving the indices of those bits that are set;
2319 i.e., p[] represents the polynomial
2320 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2322 p[0] > p[1] > ... > p[k] = 0.
2323 This applies to the following functions:
2328 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2329 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2331 BN_GF2m_mod_sqrt_arr
2332 BN_GF2m_mod_solve_quad_arr
2336 Conversion can be performed by the following functions:
2341 bntest.c has additional tests for binary polynomial arithmetic.
2343 Two implementations for BN_GF2m_mod_div() are available.
2344 The default algorithm simply uses BN_GF2m_mod_inv() and
2345 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2346 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2347 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2349 [Sheueling Chang Shantz and Douglas Stebila
2350 (Sun Microsystems Laboratories)]
2352 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2353 functionality is disabled at compile-time.
2354 [Douglas Stebila <douglas.stebila@sun.com>]
2356 *) Change default behaviour of 'openssl asn1parse' so that more
2357 information is visible when viewing, e.g., a certificate:
2359 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2360 mode the content of non-printable OCTET STRINGs is output in a
2361 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2362 avoid the appearance of a printable string.
2363 [Nils Larsch <nla@trustcenter.de>]
2365 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2367 EC_GROUP_set_asn1_flag()
2368 EC_GROUP_get_asn1_flag()
2369 EC_GROUP_set_point_conversion_form()
2370 EC_GROUP_get_point_conversion_form()
2371 These control ASN1 encoding details:
2372 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2373 has been set to OPENSSL_EC_NAMED_CURVE.
2374 - Points are encoded in uncompressed form by default; options for
2375 asn1_for are as for point2oct, namely
2376 POINT_CONVERSION_COMPRESSED
2377 POINT_CONVERSION_UNCOMPRESSED
2378 POINT_CONVERSION_HYBRID
2380 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2383 EC_GROUP_get0_seed()
2384 EC_GROUP_get_seed_len()
2385 This is used only for ASN1 purposes (so far).
2386 [Nils Larsch <nla@trustcenter.de>]
2388 *) Add 'field_type' member to EC_METHOD, which holds the NID
2389 of the appropriate field type OID. The new function
2390 EC_METHOD_get_field_type() returns this value.
2391 [Nils Larsch <nla@trustcenter.de>]
2396 EC_POINT_point2hex()
2397 EC_POINT_hex2point()
2398 providing useful interfaces to EC_POINT_point2oct() and
2399 EC_POINT_oct2point().
2400 [Nils Larsch <nla@trustcenter.de>]
2402 *) Change internals of the EC library so that the functions
2403 EC_GROUP_set_generator()
2404 EC_GROUP_get_generator()
2405 EC_GROUP_get_order()
2406 EC_GROUP_get_cofactor()
2407 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2408 to methods, which would lead to unnecessary code duplication when
2409 adding different types of curves.
2410 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2412 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2413 arithmetic, and such that modified wNAFs are generated
2414 (which avoid length expansion in many cases).
2417 *) Add a function EC_GROUP_check_discriminant() (defined via
2418 EC_METHOD) that verifies that the curve discriminant is non-zero.
2420 Add a function EC_GROUP_check() that makes some sanity tests
2421 on a EC_GROUP, its generator and order. This includes
2422 EC_GROUP_check_discriminant().
2423 [Nils Larsch <nla@trustcenter.de>]
2425 *) Add ECDSA in new directory crypto/ecdsa/.
2427 Add applications 'openssl ecparam' and 'openssl ecdsa'
2428 (these are based on 'openssl dsaparam' and 'openssl dsa').
2430 ECDSA support is also included in various other files across the
2431 library. Most notably,
2432 - 'openssl req' now has a '-newkey ecdsa:file' option;
2433 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2434 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2435 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2436 them suitable for ECDSA where domain parameters must be
2437 extracted before the specific public key;
2438 - ECDSA engine support has been added.
2439 [Nils Larsch <nla@trustcenter.de>]
2441 *) Include some named elliptic curves, and add OIDs from X9.62,
2442 SECG, and WAP/WTLS. Each curve can be obtained from the new
2444 EC_GROUP_new_by_curve_name(),
2445 and the list of available named curves can be obtained with
2446 EC_get_builtin_curves().
2447 Also add a 'curve_name' member to EC_GROUP objects, which can be
2449 EC_GROUP_set_curve_name()
2450 EC_GROUP_get_curve_name()
2451 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2453 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2454 was actually never needed) and in BN_mul(). The removal in BN_mul()
2455 required a small change in bn_mul_part_recursive() and the addition
2456 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2457 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2458 bn_sub_words() and bn_add_words() except they take arrays with
2462 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2464 *) Cleanse PEM buffers before freeing them since they may contain
2466 [Benjamin Bennett <ben@psc.edu>]
2468 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2469 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2470 authentication-only ciphersuites.
2473 *) Since AES128 and AES256 share a single mask bit in the logic of
2474 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2475 kludge to work properly if AES128 is available and AES256 isn't.
2478 *) Expand security boundary to match 1.1.1 module.
2481 *) Remove redundant features: hash file source, editing of test vectors
2482 modify fipsld to use external fips_premain.c signature.
2485 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2486 run algorithm test programs.
2489 *) Make algorithm test programs more tolerant of whitespace.
2492 *) Have SSL/TLS server implementation tolerate "mismatched" record
2493 protocol version while receiving ClientHello even if the
2494 ClientHello is fragmented. (The server can't insist on the
2495 particular protocol version it has chosen before the ServerHello
2496 message has informed the client about his choice.)
2499 *) Load error codes if they are not already present instead of using a
2500 static variable. This allows them to be cleanly unloaded and reloaded.
2503 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2505 *) Introduce limits to prevent malicious keys being able to
2506 cause a denial of service. (CVE-2006-2940)
2507 [Steve Henson, Bodo Moeller]
2509 *) Fix ASN.1 parsing of certain invalid structures that can result
2510 in a denial of service. (CVE-2006-2937) [Steve Henson]
2512 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2513 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2515 *) Fix SSL client code which could crash if connecting to a
2516 malicious SSLv2 server. (CVE-2006-4343)
2517 [Tavis Ormandy and Will Drewry, Google Security Team]
2519 *) Change ciphersuite string processing so that an explicit
2520 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2521 will no longer include "AES128-SHA"), and any other similar
2522 ciphersuite (same bitmap) from *other* protocol versions (so that
2523 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2524 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2525 changes from 0.9.8b and 0.9.8d.
2528 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2530 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2531 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2533 *) Change the Unix randomness entropy gathering to use poll() when
2534 possible instead of select(), since the latter has some
2535 undesirable limitations.
2536 [Darryl Miles via Richard Levitte and Bodo Moeller]
2538 *) Disable rogue ciphersuites:
2540 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2541 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2542 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2544 The latter two were purportedly from
2545 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2548 Also deactive the remaining ciphersuites from
2549 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2550 unofficial, and the ID has long expired.
2553 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2554 dual-core machines) and other potential thread-safety issues.
2557 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2559 *) Adapt fipsld and the build system to link against the validated FIPS
2560 module in FIPS mode.
2563 *) Fixes for VC++ 2005 build under Windows.
2566 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2567 from a Windows bash shell such as MSYS. It is autodetected from the
2568 "config" script when run from a VC++ environment. Modify standard VC++
2569 build to use fipscanister.o from the GNU make build.
2572 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2574 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2575 The value now differs depending on if you build for FIPS or not.
2576 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2577 safely run with a non-FIPSed libcrypto, as it may crash because of
2578 the difference induced by this change.
2581 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2583 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2584 (part of SSL_OP_ALL). This option used to disable the
2585 countermeasure against man-in-the-middle protocol-version
2586 rollback in the SSL 2.0 server implementation, which is a bad
2587 idea. (CVE-2005-2969)
2589 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2590 for Information Security, National Institute of Advanced Industrial
2591 Science and Technology [AIST], Japan)]
2593 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2594 mainly for FIPS compliance and not fully integrated at this stage.
2597 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2598 the exponentiation using a fixed-length exponent. (Otherwise,
2599 the information leaked through timing could expose the secret key
2600 after many signatures; cf. Bleichenbacher's attack on DSA with
2604 *) Make a new fixed-window mod_exp implementation the default for
2605 RSA, DSA, and DH private-key operations so that the sequence of
2606 squares and multiplies and the memory access pattern are
2607 independent of the particular secret key. This will mitigate
2608 cache-timing and potential related attacks.
2610 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2611 and this is automatically used by BN_mod_exp_mont() if the new flag
2612 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2613 will use this BN flag for private exponents unless the flag
2614 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2615 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2617 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2619 *) Change the client implementation for SSLv23_method() and
2620 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2621 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2622 (Previously, the SSL 2.0 backwards compatible Client Hello
2623 message format would be used even with SSL_OP_NO_SSLv2.)
2626 *) Add support for smime-type MIME parameter in S/MIME messages which some
2630 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2631 a threadsafe manner. Modify rsa code to use new function and add calls
2632 to dsa and dh code (which had race conditions before).
2635 *) Include the fixed error library code in the C error file definitions
2636 instead of fixing them up at runtime. This keeps the error code
2637 structures constant.
2640 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2642 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2645 *) Fixes for newer kerberos headers. NB: the casts are needed because
2646 the 'length' field is signed on one version and unsigned on another
2647 with no (?) obvious way to tell the difference, without these VC++
2648 complains. Also the "definition" of FAR (blank) is no longer included
2649 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2650 some needed definitions.
2653 *) Undo Cygwin change.
2656 *) Added support for proxy certificates according to RFC 3820.
2657 Because they may be a security thread to unaware applications,
2658 they must be explicitely allowed in run-time. See
2659 docs/HOWTO/proxy_certificates.txt for further information.
2662 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2664 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2665 server and client random values. Previously
2666 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2667 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2669 This change has negligible security impact because:
2671 1. Server and client random values still have 24 bytes of pseudo random
2674 2. Server and client random values are sent in the clear in the initial
2677 3. The master secret is derived using the premaster secret (48 bytes in
2678 size for static RSA ciphersuites) as well as client server and random
2681 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2684 [Stephen Henson, reported by UK NISCC]
2686 *) Use Windows randomness collection on Cygwin.
2689 *) Fix hang in EGD/PRNGD query when communication socket is closed
2690 prematurely by EGD/PRNGD.
2691 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2693 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2696 *) Back-port of selected performance improvements from development
2697 branch, as well as improved support for PowerPC platforms.
2700 *) Add lots of checks for memory allocation failure, error codes to indicate
2701 failure and freeing up memory if a failure occurs.
2702 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2704 *) Add new -passin argument to dgst.
2707 *) Perform some character comparisons of different types in X509_NAME_cmp:
2708 this is needed for some certificates that reencode DNs into UTF8Strings
2709 (in violation of RFC3280) and can't or wont issue name rollover
2713 *) Make an explicit check during certificate validation to see that
2714 the CA setting in each certificate on the chain is correct. As a
2715 side effect always do the following basic checks on extensions,
2716 not just when there's an associated purpose to the check:
2718 - if there is an unhandled critical extension (unless the user
2719 has chosen to ignore this fault)
2720 - if the path length has been exceeded (if one is set at all)
2721 - that certain extensions fit the associated purpose (if one has
2725 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2727 *) Avoid a race condition when CRLs are checked in a multi threaded
2728 environment. This would happen due to the reordering of the revoked
2729 entries during signature checking and serial number lookup. Now the
2730 encoding is cached and the serial number sort performed under a lock.
2731 Add new STACK function sk_is_sorted().
2734 *) Add Delta CRL to the extension code.
2737 *) Various fixes to s3_pkt.c so alerts are sent properly.
2738 [David Holmes <d.holmes@f5.com>]
2740 *) Reduce the chances of duplicate issuer name and serial numbers (in
2741 violation of RFC3280) using the OpenSSL certificate creation utilities.
2742 This is done by creating a random 64 bit value for the initial serial
2743 number when a serial number file is created or when a self signed
2744 certificate is created using 'openssl req -x509'. The initial serial
2745 number file is created using 'openssl x509 -next_serial' in CA.pl
2746 rather than being initialized to 1.
2749 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2751 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2752 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2753 [Joe Orton, Steve Henson]
2755 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2757 [Joe Orton, Steve Henson]
2759 *) Make it possible to have multiple active certificates with the same
2760 subject in the CA index file. This is done only if the keyword
2761 'unique_subject' is set to 'no' in the main CA section (default
2762 if 'CA_default') of the configuration file. The value is saved
2763 with the database itself in a separate index attribute file,
2764 named like the index file with '.attr' appended to the name.
2767 *) X509 verify fixes. Disable broken certificate workarounds when
2768 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2769 keyUsage extension present. Don't accept CRLs with unhandled critical
2770 extensions: since verify currently doesn't process CRL extensions this
2771 rejects a CRL with *any* critical extensions. Add new verify error codes
2775 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2776 A clarification of RFC2560 will require the use of OCTET STRINGs and
2777 some implementations cannot handle the current raw format. Since OpenSSL
2778 copies and compares OCSP nonces as opaque blobs without any attempt at
2779 parsing them this should not create any compatibility issues.
2782 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2783 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2784 this HMAC (and other) operations are several times slower than OpenSSL
2788 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2789 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2791 *) Use the correct content when signing type "other".
2794 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2796 *) Fix various bugs revealed by running the NISCC test suite:
2798 Stop out of bounds reads in the ASN1 code when presented with
2799 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2801 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2803 If verify callback ignores invalid public key errors don't try to check
2804 certificate signature with the NULL public key.
2808 *) New -ignore_err option in ocsp application to stop the server
2809 exiting on the first error in a request.
2812 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2813 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2817 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2818 extra data after the compression methods not only for TLS 1.0
2819 but also for SSL 3.0 (as required by the specification).
2820 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2822 *) Change X509_certificate_type() to mark the key as exported/exportable
2823 when it's 512 *bits* long, not 512 bytes.
2826 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2827 blocks during encryption.
2830 *) Various fixes to base64 BIO and non blocking I/O. On write
2831 flushes were not handled properly if the BIO retried. On read
2832 data was not being buffered properly and had various logic bugs.
2833 This also affects blocking I/O when the data being decoded is a
2837 *) Various S/MIME bugfixes and compatibility changes:
2838 output correct application/pkcs7 MIME type if
2839 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2840 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2841 of files as .eml work). Correctly handle very long lines in MIME
2845 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2847 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2848 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2849 a protocol version number mismatch like a decryption error
2850 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2853 *) Turn on RSA blinding by default in the default implementation
2854 to avoid a timing attack. Applications that don't want it can call
2855 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2856 They would be ill-advised to do so in most cases.
2857 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2859 *) Change RSA blinding code so that it works when the PRNG is not
2860 seeded (in this case, the secret RSA exponent is abused as
2861 an unpredictable seed -- if it is not unpredictable, there
2862 is no point in blinding anyway). Make RSA blinding thread-safe
2863 by remembering the creator's thread ID in rsa->blinding and
2864 having all other threads use local one-time blinding factors
2865 (this requires more computation than sharing rsa->blinding, but
2866 avoids excessive locking; and if an RSA object is not shared
2867 between threads, blinding will still be very fast).
2870 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2871 ENGINE as defaults for all supported algorithms irrespective of
2872 the 'flags' parameter. 'flags' is now honoured, so applications
2873 should make sure they are passing it correctly.
2876 *) Target "mingw" now allows native Windows code to be generated in
2877 the Cygwin environment as well as with the MinGW compiler.
2880 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2882 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2883 via timing by performing a MAC computation even if incorrrect
2884 block cipher padding has been found. This is a countermeasure
2885 against active attacks where the attacker has to distinguish
2886 between bad padding and a MAC verification error. (CVE-2003-0078)
2888 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2889 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2890 Martin Vuagnoux (EPFL, Ilion)]
2892 *) Make the no-err option work as intended. The intention with no-err
2893 is not to have the whole error stack handling routines removed from
2894 libcrypto, it's only intended to remove all the function name and
2895 reason texts, thereby removing some of the footprint that may not
2896 be interesting if those errors aren't displayed anyway.
2898 NOTE: it's still possible for any application or module to have it's
2899 own set of error texts inserted. The routines are there, just not
2900 used by default when no-err is given.
2903 *) Add support for FreeBSD on IA64.
2904 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2906 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2907 Kerberos function mit_des_cbc_cksum(). Before this change,
2908 the value returned by DES_cbc_cksum() was like the one from
2909 mit_des_cbc_cksum(), except the bytes were swapped.
2910 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2912 *) Allow an application to disable the automatic SSL chain building.
2913 Before this a rather primitive chain build was always performed in
2914 ssl3_output_cert_chain(): an application had no way to send the
2915 correct chain if the automatic operation produced an incorrect result.
2917 Now the chain builder is disabled if either:
2919 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2921 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2923 The reasoning behind this is that an application would not want the
2924 auto chain building to take place if extra chain certificates are
2925 present and it might also want a means of sending no additional
2926 certificates (for example the chain has two certificates and the
2930 *) Add the possibility to build without the ENGINE framework.
2931 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2933 *) Under Win32 gmtime() can return NULL: check return value in
2934 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2937 *) DSA routines: under certain error conditions uninitialized BN objects
2938 could be freed. Solution: make sure initialization is performed early
2939 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2940 Nils Larsch <nla@trustcenter.de> via PR#459)
2943 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2944 checked on reconnect on the client side, therefore session resumption
2945 could still fail with a "ssl session id is different" error. This
2946 behaviour is masked when SSL_OP_ALL is used due to
2947 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2948 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2949 followup to PR #377.
2952 *) IA-32 assembler support enhancements: unified ELF targets, support
2953 for SCO/Caldera platforms, fix for Cygwin shared build.
2956 *) Add support for FreeBSD on sparc64. As a consequence, support for
2957 FreeBSD on non-x86 processors is separate from x86 processors on
2958 the config script, much like the NetBSD support.
2959 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2961 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2963 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2966 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2967 code (06) was taken as the first octet of the session ID and the last
2968 octet was ignored consequently. As a result SSLv2 client side session
2969 caching could not have worked due to the session ID mismatch between
2971 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2975 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2976 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2980 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2981 seems that in spite of existing for more than a year, many application
2982 author have done nothing to provide the necessary callbacks, which
2983 means that this particular engine will not work properly anywhere.
2984 This is a very unfortunate situation which forces us, in the name
2985 of usability, to give the hw_ncipher.c a static lock, which is part
2987 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2988 appear in 0.9.8 or later. We EXPECT application authors to have
2989 dealt properly with this when 0.9.8 is released (unless we actually
2990 make such changes in the libcrypto locking code that changes will
2991 have to be made anyway).
2994 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2995 octets have been read, EOF or an error occurs. Without this change
2996 some truncated ASN1 structures will not produce an error.
2999 *) Disable Heimdal support, since it hasn't been fully implemented.
3000 Still give the possibility to force the use of Heimdal, but with
3001 warnings and a request that patches get sent to openssl-dev.
3004 *) Add the VC-CE target, introduce the WINCE sysname, and add
3005 INSTALL.WCE and appropriate conditionals to make it build.
3006 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3008 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3009 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3010 edit numbers of the version.
3011 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3013 *) Introduce safe string copy and catenation functions
3014 (BUF_strlcpy() and BUF_strlcat()).
3015 [Ben Laurie (CHATS) and Richard Levitte]
3017 *) Avoid using fixed-size buffers for one-line DNs.
3018 [Ben Laurie (CHATS)]
3020 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3021 resizing buffers containing secrets, and use where appropriate.
3022 [Ben Laurie (CHATS)]
3024 *) Avoid using fixed size buffers for configuration file location.
3025 [Ben Laurie (CHATS)]
3027 *) Avoid filename truncation for various CA files.
3028 [Ben Laurie (CHATS)]
3030 *) Use sizeof in preference to magic numbers.
3031 [Ben Laurie (CHATS)]
3033 *) Avoid filename truncation in cert requests.
3034 [Ben Laurie (CHATS)]
3036 *) Add assertions to check for (supposedly impossible) buffer
3038 [Ben Laurie (CHATS)]
3040 *) Don't cache truncated DNS entries in the local cache (this could
3041 potentially lead to a spoofing attack).
3042 [Ben Laurie (CHATS)]
3044 *) Fix various buffers to be large enough for hex/decimal
3045 representations in a platform independent manner.
3046 [Ben Laurie (CHATS)]
3048 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3049 resizing buffers containing secrets, and use where appropriate.
3050 [Ben Laurie (CHATS)]
3052 *) Add BIO_indent() to avoid much slightly worrying code to do
3054 [Ben Laurie (CHATS)]
3056 *) Convert sprintf()/BIO_puts() to BIO_printf().
3057 [Ben Laurie (CHATS)]
3059 *) buffer_gets() could terminate with the buffer only half
3061 [Ben Laurie (CHATS)]
3063 *) Add assertions to prevent user-supplied crypto functions from
3064 overflowing internal buffers by having large block sizes, etc.
3065 [Ben Laurie (CHATS)]
3067 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3069 [Ben Laurie (CHATS)]
3071 *) Eliminate unused copy of key in RC4.
3072 [Ben Laurie (CHATS)]
3074 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3075 [Ben Laurie (CHATS)]
3077 *) Fix off-by-one error in EGD path.
3078 [Ben Laurie (CHATS)]
3080 *) If RANDFILE path is too long, ignore instead of truncating.
3081 [Ben Laurie (CHATS)]
3083 *) Eliminate unused and incorrectly sized X.509 structure
3085 [Ben Laurie (CHATS)]
3087 *) Eliminate unused and dangerous function knumber().
3088 [Ben Laurie (CHATS)]
3090 *) Eliminate unused and dangerous structure, KSSL_ERR.
3091 [Ben Laurie (CHATS)]
3093 *) Protect against overlong session ID context length in an encoded
3094 session object. Since these are local, this does not appear to be
3096 [Ben Laurie (CHATS)]
3098 *) Change from security patch (see 0.9.6e below) that did not affect
3099 the 0.9.6 release series:
3101 Remote buffer overflow in SSL3 protocol - an attacker could
3102 supply an oversized master key in Kerberos-enabled versions.
3104 [Ben Laurie (CHATS)]
3106 *) Change the SSL kerb5 codes to match RFC 2712.
3109 *) Make -nameopt work fully for req and add -reqopt switch.
3110 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3112 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3113 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3115 *) Make sure tests can be performed even if the corresponding algorithms
3116 have been removed entirely. This was also the last step to make
3117 OpenSSL compilable with DJGPP under all reasonable conditions.
3118 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3120 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3121 to allow version independent disabling of normally unselected ciphers,
3122 which may be activated as a side-effect of selecting a single cipher.
3124 (E.g., cipher list string "RSA" enables ciphersuites that are left
3125 out of "ALL" because they do not provide symmetric encryption.
3126 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3127 [Lutz Jaenicke, Bodo Moeller]
3129 *) Add appropriate support for separate platform-dependent build
3130 directories. The recommended way to make a platform-dependent
3131 build directory is the following (tested on Linux), maybe with
3134 # Place yourself outside of the OpenSSL source tree. In
3135 # this example, the environment variable OPENSSL_SOURCE
3136 # is assumed to contain the absolute OpenSSL source directory.
3137 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3138 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3139 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3140 mkdir -p `dirname $F`
3141 ln -s $OPENSSL_SOURCE/$F $F
3144 To be absolutely sure not to disturb the source tree, a "make clean"
3145 is a good thing. If it isn't successfull, don't worry about it,
3146 it probably means the source directory is very clean.
3149 *) Make sure any ENGINE control commands make local copies of string
3150 pointers passed to them whenever necessary. Otherwise it is possible
3151 the caller may have overwritten (or deallocated) the original string
3152 data when a later ENGINE operation tries to use the stored values.
3153 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3155 *) Improve diagnostics in file reading and command-line digests.
3156 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3158 *) Add AES modes CFB and OFB to the object database. Correct an
3159 error in AES-CFB decryption.
3162 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3163 allows existing EVP_CIPHER_CTX structures to be reused after
3164 calling EVP_*Final(). This behaviour is used by encryption
3165 BIOs and some applications. This has the side effect that
3166 applications must explicitly clean up cipher contexts with
3167 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3170 *) Check the values of dna and dnb in bn_mul_recursive before calling
3171 bn_mul_comba (a non zero value means the a or b arrays do not contain
3172 n2 elements) and fallback to bn_mul_normal if either is not zero.
3175 *) Fix escaping of non-ASCII characters when using the -subj option
3176 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3179 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3180 form for "surname", serialNumber has no short form.
3181 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3182 therefore remove "mail" short name for "internet 7".
3183 The OID for unique identifiers in X509 certificates is
3184 x500UniqueIdentifier, not uniqueIdentifier.
3185 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3188 *) Add an "init" command to the ENGINE config module and auto initialize
3189 ENGINEs. Without any "init" command the ENGINE will be initialized
3190 after all ctrl commands have been executed on it. If init=1 the
3191 ENGINE is initailized at that point (ctrls before that point are run
3192 on the uninitialized ENGINE and after on the initialized one). If
3193 init=0 then the ENGINE will not be iniatialized at all.
3196 *) Fix the 'app_verify_callback' interface so that the user-defined
3197 argument is actually passed to the callback: In the
3198 SSL_CTX_set_cert_verify_callback() prototype, the callback
3199 declaration has been changed from
3202 int (*cb)(X509_STORE_CTX *,void *);
3203 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3204 i=s->ctx->app_verify_callback(&ctx)
3205 has been changed into
3206 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3208 To update applications using SSL_CTX_set_cert_verify_callback(),
3209 a dummy argument can be added to their callback functions.
3210 [D. K. Smetters <smetters@parc.xerox.com>]
3212 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3213 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3215 *) Add and OPENSSL_LOAD_CONF define which will cause
3216 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3217 This allows older applications to transparently support certain
3218 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3219 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3220 load the config file and OPENSSL_add_all_algorithms_conf() which will
3221 always load it have also been added.
3224 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3225 Adjust NIDs and EVP layer.
3226 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3228 *) Config modules support in openssl utility.
3230 Most commands now load modules from the config file,
3231 though in a few (such as version) this isn't done
3232 because it couldn't be used for anything.
3234 In the case of ca and req the config file used is
3235 the same as the utility itself: that is the -config
3236 command line option can be used to specify an
3240 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3241 use "openssl_conf" if filename is NULL use default openssl config file.
3244 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3245 config section name. Add a new flag to tolerate a missing config file
3246 and move code to CONF_modules_load_file().
3249 *) Support for crypto accelerator cards from Accelerated Encryption
3250 Processing, www.aep.ie. (Use engine 'aep')
3251 The support was copied from 0.9.6c [engine] and adapted/corrected
3252 to work with the new engine framework.
3253 [AEP Inc. and Richard Levitte]
3255 *) Support for SureWare crypto accelerator cards from Baltimore
3256 Technologies. (Use engine 'sureware')
3257 The support was copied from 0.9.6c [engine] and adapted
3258 to work with the new engine framework.
3261 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3262 make the newer ENGINE framework commands for the CHIL engine work.
3263 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3265 *) Make it possible to produce shared libraries on ReliantUNIX.
3266 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3268 *) Add the configuration target debug-linux-ppro.
3269 Make 'openssl rsa' use the general key loading routines
3270 implemented in apps.c, and make those routines able to
3271 handle the key format FORMAT_NETSCAPE and the variant
3273 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3275 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3276 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3278 *) Add -keyform to rsautl, and document -engine.
3279 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3281 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3282 BIO_R_NO_SUCH_FILE error code rather than the generic
3283 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3286 *) Add new functions
3288 ERR_peek_last_error_line
3289 ERR_peek_last_error_line_data.
3290 These are similar to
3293 ERR_peek_error_line_data,
3294 but report on the latest error recorded rather than the first one
3295 still in the error queue.
3296 [Ben Laurie, Bodo Moeller]
3298 *) default_algorithms option in ENGINE config module. This allows things
3300 default_algorithms = ALL
3301 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3304 *) Prelminary ENGINE config module.
3307 *) New experimental application configuration code.
3310 *) Change the AES code to follow the same name structure as all other
3311 symmetric ciphers, and behave the same way. Move everything to
3312 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3313 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3315 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3316 [Ben Laurie and Theo de Raadt]
3318 *) Add option to output public keys in req command.
3319 [Massimiliano Pala madwolf@openca.org]
3321 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3322 (up to about 10% better than before for P-192 and P-224).
3325 *) New functions/macros
3327 SSL_CTX_set_msg_callback(ctx, cb)
3328 SSL_CTX_set_msg_callback_arg(ctx, arg)
3329 SSL_set_msg_callback(ssl, cb)
3330 SSL_set_msg_callback_arg(ssl, arg)
3332 to request calling a callback function
3334 void cb(int write_p, int version, int content_type,
3335 const void *buf, size_t len, SSL *ssl, void *arg)
3337 whenever a protocol message has been completely received
3338 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3339 protocol version according to which the SSL library interprets
3340 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3341 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3342 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3343 specification (change_cipher_spec(20), alert(21), handshake(22)).
3344 'buf' and 'len' point to the actual message, 'ssl' to the
3345 SSL object, and 'arg' is the application-defined value set by
3346 SSL[_CTX]_set_msg_callback_arg().
3348 'openssl s_client' and 'openssl s_server' have new '-msg' options
3349 to enable a callback that displays all protocol messages.
3352 *) Change the shared library support so shared libraries are built as
3353 soon as the corresponding static library is finished, and thereby get
3354 openssl and the test programs linked against the shared library.
3355 This still only happens when the keyword "shard" has been given to
3356 the configuration scripts.
3358 NOTE: shared library support is still an experimental thing, and
3359 backward binary compatibility is still not guaranteed.
3360 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3362 *) Add support for Subject Information Access extension.
3363 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3365 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3366 additional bytes when new memory had to be allocated, not just
3367 when reusing an existing buffer.
3370 *) New command line and configuration option 'utf8' for the req command.
3371 This allows field values to be specified as UTF8 strings.
3374 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3375 runs for the former and machine-readable output for the latter.
3378 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3379 of the e-mail address in the DN (i.e., it will go into a certificate
3380 extension only). The new configuration file option 'email_in_dn = no'
3381 has the same effect.
3382 [Massimiliano Pala madwolf@openca.org]
3384 *) Change all functions with names starting with des_ to be starting
3385 with DES_ instead. Add wrappers that are compatible with libdes,
3386 but are named _ossl_old_des_*. Finally, add macros that map the
3387 des_* symbols to the corresponding _ossl_old_des_* if libdes
3388 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3389 desired, the des_* symbols will be mapped to DES_*, with one
3392 Since we provide two compatibility mappings, the user needs to
3393 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3394 compatibility is desired. The default (i.e., when that macro
3395 isn't defined) is OpenSSL 0.9.6c compatibility.
3397 There are also macros that enable and disable the support of old
3398 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3399 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3400 are defined, the default will apply: to support the old des routines.
3402 In either case, one must include openssl/des.h to get the correct
3403 definitions. Do not try to just include openssl/des_old.h, that
3406 NOTE: This is a major break of an old API into a new one. Software
3407 authors are encouraged to switch to the DES_ style functions. Some
3408 time in the future, des_old.h and the libdes compatibility functions
3409 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3410 default), and then completely removed.
3413 *) Test for certificates which contain unsupported critical extensions.
3414 If such a certificate is found during a verify operation it is
3415 rejected by default: this behaviour can be overridden by either
3416 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3417 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3418 X509_supported_extension() has also been added which returns 1 if a
3419 particular extension is supported.
3422 *) Modify the behaviour of EVP cipher functions in similar way to digests
3423 to retain compatibility with existing code.
3426 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3427 compatibility with existing code. In particular the 'ctx' parameter does
3428 not have to be to be initialized before the call to EVP_DigestInit() and
3429 it is tidied up after a call to EVP_DigestFinal(). New function
3430 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3431 EVP_MD_CTX_copy() changed to not require the destination to be
3432 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3433 requires the destination to be valid.
3435 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3436 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3439 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3440 so that complete 'Handshake' protocol structures are kept in memory
3441 instead of overwriting 'msg_type' and 'length' with 'body' data.
3444 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3445 [Massimo Santin via Richard Levitte]
3447 *) Major restructuring to the underlying ENGINE code. This includes
3448 reduction of linker bloat, separation of pure "ENGINE" manipulation
3449 (initialisation, etc) from functionality dealing with implementations
3450 of specific crypto iterfaces. This change also introduces integrated
3451 support for symmetric ciphers and digest implementations - so ENGINEs
3452 can now accelerate these by providing EVP_CIPHER and EVP_MD
3453 implementations of their own. This is detailed in crypto/engine/README
3454 as it couldn't be adequately described here. However, there are a few
3455 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3456 were changed in the original introduction of ENGINE code have now
3457 reverted back - the hooking from this code to ENGINE is now a good
3458 deal more passive and at run-time, operations deal directly with
3459 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3460 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3461 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3462 they were not being used by the framework as there is no concept of a
3463 BIGNUM_METHOD and they could not be generalised to the new
3464 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3465 ENGINE_cpy() has been removed as it cannot be consistently defined in
3469 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3472 *) Change mkdef.pl to sort symbols that get the same entry number,
3473 and make sure the automatically generated functions ERR_load_*
3474 become part of libeay.num as well.
3477 *) New function SSL_renegotiate_pending(). This returns true once
3478 renegotiation has been requested (either SSL_renegotiate() call
3479 or HelloRequest/ClientHello receveived from the peer) and becomes
3480 false once a handshake has been completed.
3481 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3482 sends a HelloRequest, but does not ensure that a handshake takes
3483 place. SSL_renegotiate_pending() is useful for checking if the
3484 client has followed the request.)
3487 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3488 By default, clients may request session resumption even during
3489 renegotiation (if session ID contexts permit); with this option,
3490 session resumption is possible only in the first handshake.
3492 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3493 more bits available for options that should not be part of
3494 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3497 *) Add some demos for certificate and certificate request creation.
3500 *) Make maximum certificate chain size accepted from the peer application
3501 settable (SSL*_get/set_max_cert_list()), as proposed by
3502 "Douglas E. Engert" <deengert@anl.gov>.
3505 *) Add support for shared libraries for Unixware-7
3506 (Boyd Lynn Gerber <gerberb@zenez.com>).
3509 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3510 be done prior to destruction. Use this to unload error strings from
3511 ENGINEs that load their own error strings. NB: This adds two new API
3512 functions to "get" and "set" this destroy handler in an ENGINE.
3515 *) Alter all existing ENGINE implementations (except "openssl" and
3516 "openbsd") to dynamically instantiate their own error strings. This
3517 makes them more flexible to be built both as statically-linked ENGINEs
3518 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3519 Also, add stub code to each that makes building them as self-contained
3520 shared-libraries easier (see README.ENGINE).
3523 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3524 implementations into applications that are completely implemented in
3525 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3526 commands that can be used to configure what shared-library to load and
3527 to control aspects of the way it is handled. Also, made an update to
3528 the README.ENGINE file that brings its information up-to-date and
3529 provides some information and instructions on the "dynamic" ENGINE
3530 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3533 *) Make it possible to unload ranges of ERR strings with a new
3534 "ERR_unload_strings" function.
3537 *) Add a copy() function to EVP_MD.
3540 *) Make EVP_MD routines take a context pointer instead of just the
3541 md_data void pointer.
3544 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3545 that the digest can only process a single chunk of data
3546 (typically because it is provided by a piece of
3547 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3548 is only going to provide a single chunk of data, and hence the
3549 framework needn't accumulate the data for oneshot drivers.
3552 *) As with "ERR", make it possible to replace the underlying "ex_data"
3553 functions. This change also alters the storage and management of global
3554 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3555 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3556 index counters. The API functions that use this state have been changed
3557 to take a "class_index" rather than pointers to the class's local STACK
3558 and counter, and there is now an API function to dynamically create new
3559 classes. This centralisation allows us to (a) plug a lot of the
3560 thread-safety problems that existed, and (b) makes it possible to clean
3561 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3562 such data would previously have always leaked in application code and
3563 workarounds were in place to make the memory debugging turn a blind eye
3564 to it. Application code that doesn't use this new function will still
3565 leak as before, but their memory debugging output will announce it now
3566 rather than letting it slide.
3568 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3569 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3570 has a return value to indicate success or failure.
3573 *) Make it possible to replace the underlying "ERR" functions such that the
3574 global state (2 LHASH tables and 2 locks) is only used by the "default"
3575 implementation. This change also adds two functions to "get" and "set"
3576 the implementation prior to it being automatically set the first time
3577 any other ERR function takes place. Ie. an application can call "get",
3578 pass the return value to a module it has just loaded, and that module
3579 can call its own "set" function using that value. This means the
3580 module's "ERR" operations will use (and modify) the error state in the
3581 application and not in its own statically linked copy of OpenSSL code.
3584 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3585 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3586 the operation, and provides a more encapsulated way for external code
3587 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3588 to use these functions rather than manually incrementing the counts.
3590 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3593 *) Add EVP test program.
3596 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3599 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3600 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3601 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3602 These allow a CRL to be built without having to access X509_CRL fields
3603 directly. Modify 'ca' application to use new functions.
3606 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3607 bug workarounds. Rollback attack detection is a security feature.
3608 The problem will only arise on OpenSSL servers when TLSv1 is not
3609 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3610 Software authors not wanting to support TLSv1 will have special reasons
3611 for their choice and can explicitly enable this option.
3612 [Bodo Moeller, Lutz Jaenicke]
3614 *) Rationalise EVP so it can be extended: don't include a union of
3615 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3616 (similar to those existing for EVP_CIPHER_CTX).
3621 EVP_MD_CTX_init(&md); /* new function call */
3622 EVP_DigestInit(&md, EVP_sha1());
3623 EVP_DigestUpdate(&md, in, len);
3624 EVP_DigestFinal(&md, out, NULL);
3625 EVP_MD_CTX_cleanup(&md); /* new function call */
3629 *) Make DES key schedule conform to the usual scheme, as well as
3630 correcting its structure. This means that calls to DES functions
3631 now have to pass a pointer to a des_key_schedule instead of a
3632 plain des_key_schedule (which was actually always a pointer
3635 des_key_schedule ks;
3637 des_set_key_checked(..., &ks);
3638 des_ncbc_encrypt(..., &ks, ...);
3640 (Note that a later change renames 'des_...' into 'DES_...'.)
3643 *) Initial reduction of linker bloat: the use of some functions, such as
3644 PEM causes large amounts of unused functions to be linked in due to
3645 poor organisation. For example pem_all.c contains every PEM function
3646 which has a knock on effect of linking in large amounts of (unused)
3647 ASN1 code. Grouping together similar functions and splitting unrelated
3648 functions prevents this.
3651 *) Cleanup of EVP macros.
3654 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3655 correct _ecb suffix.
3658 *) Add initial OCSP responder support to ocsp application. The
3659 revocation information is handled using the text based index
3660 use by the ca application. The responder can either handle
3661 requests generated internally, supplied in files (for example
3662 via a CGI script) or using an internal minimal server.
3665 *) Add configuration choices to get zlib compression for TLS.
3668 *) Changes to Kerberos SSL for RFC 2712 compliance:
3669 1. Implemented real KerberosWrapper, instead of just using
3670 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3671 2. Implemented optional authenticator field of KerberosWrapper.
3673 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3674 and authenticator structs; see crypto/krb5/.
3676 Generalized Kerberos calls to support multiple Kerberos libraries.
3677 [Vern Staats <staatsvr@asc.hpc.mil>,
3678 Jeffrey Altman <jaltman@columbia.edu>
3679 via Richard Levitte]
3681 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3682 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3683 values for each of the key sizes rather than having just
3684 parameters (and 'speed' generating keys each time).
3687 *) Speed up EVP routines.
3690 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3691 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3692 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3693 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3695 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3696 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3697 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3700 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3702 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3705 *) Added the OS2-EMX target.
3706 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3708 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3709 to support NCONF routines in extension code. New function CONF_set_nconf()
3710 to allow functions which take an NCONF to also handle the old LHASH
3711 structure: this means that the old CONF compatible routines can be
3712 retained (in particular wrt extensions) without having to duplicate the
3713 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3716 *) Enhance the general user interface with mechanisms for inner control
3717 and with possibilities to have yes/no kind of prompts.
3720 *) Change all calls to low level digest routines in the library and
3721 applications to use EVP. Add missing calls to HMAC_cleanup() and
3722 don't assume HMAC_CTX can be copied using memcpy().
3723 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3725 *) Add the possibility to control engines through control names but with
3726 arbitrary arguments instead of just a string.
3727 Change the key loaders to take a UI_METHOD instead of a callback
3728 function pointer. NOTE: this breaks binary compatibility with earlier
3729 versions of OpenSSL [engine].
3730 Adapt the nCipher code for these new conditions and add a card insertion
3734 *) Enhance the general user interface with mechanisms to better support
3735 dialog box interfaces, application-defined prompts, the possibility
3736 to use defaults (for example default passwords from somewhere else)
3737 and interrupts/cancellations.
3740 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3741 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3744 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3745 tidy up some unnecessarily weird code in 'sk_new()').
3746 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3748 *) Change the key loading routines for ENGINEs to use the same kind
3749 callback (pem_password_cb) as all other routines that need this
3753 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3754 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3755 than this minimum value is recommended.
3758 *) New random seeder for OpenVMS, using the system process statistics
3759 that are easily reachable.
3762 *) Windows apparently can't transparently handle global
3763 variables defined in DLLs. Initialisations such as:
3765 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3767 wont compile. This is used by the any applications that need to
3768 declare their own ASN1 modules. This was fixed by adding the option
3769 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3770 needed for static libraries under Win32.
3773 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3774 setting of purpose and trust fields. New X509_STORE trust and
3775 purpose functions and tidy up setting in other SSL functions.
3778 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3779 structure. These are inherited by X509_STORE_CTX when it is
3780 initialised. This allows various defaults to be set in the
3781 X509_STORE structure (such as flags for CRL checking and custom
3782 purpose or trust settings) for functions which only use X509_STORE_CTX
3783 internally such as S/MIME.
3785 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3786 trust settings if they are not set in X509_STORE. This allows X509_STORE
3787 purposes and trust (in S/MIME for example) to override any set by default.
3789 Add command line options for CRL checking to smime, s_client and s_server
3793 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3794 are set then the CRL is looked up in the X509_STORE structure and
3795 its validity and signature checked, then if the certificate is found
3796 in the CRL the verify fails with a revoked error.
3798 Various new CRL related callbacks added to X509_STORE_CTX structure.
3800 Command line options added to 'verify' application to support this.
3802 This needs some additional work, such as being able to handle multiple
3803 CRLs with different times, extension based lookup (rather than just
3804 by subject name) and ultimately more complete V2 CRL extension
3808 *) Add a general user interface API (crypto/ui/). This is designed
3809 to replace things like des_read_password and friends (backward
3810 compatibility functions using this new API are provided).
3811 The purpose is to remove prompting functions from the DES code
3812 section as well as provide for prompting through dialog boxes in
3813 a window system and the like.
3816 *) Add "ex_data" support to ENGINE so implementations can add state at a
3817 per-structure level rather than having to store it globally.
3820 *) Make it possible for ENGINE structures to be copied when retrieved by
3821 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3822 This causes the "original" ENGINE structure to act like a template,
3823 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3824 operational state can be localised to each ENGINE structure, despite the
3825 fact they all share the same "methods". New ENGINE structures returned in
3826 this case have no functional references and the return value is the single
3827 structural reference. This matches the single structural reference returned
3828 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3832 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3833 needs to match any other type at all we need to manually clear the
3837 *) Changes to the "openssl engine" utility to include;
3838 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3839 about an ENGINE's available control commands.
3840 - executing control commands from command line arguments using the
3841 '-pre' and '-post' switches. '-post' is only used if '-t' is
3842 specified and the ENGINE is successfully initialised. The syntax for
3843 the individual commands are colon-separated, for example;
3844 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3847 *) New dynamic control command support for ENGINEs. ENGINEs can now
3848 declare their own commands (numbers), names (strings), descriptions,
3849 and input types for run-time discovery by calling applications. A
3850 subset of these commands are implicitly classed as "executable"
3851 depending on their input type, and only these can be invoked through
3852 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3853 can be based on user input, config files, etc). The distinction is
3854 that "executable" commands cannot return anything other than a boolean
3855 result and can only support numeric or string input, whereas some
3856 discoverable commands may only be for direct use through
3857 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3858 pointers, or other custom uses. The "executable" commands are to
3859 support parameterisations of ENGINE behaviour that can be
3860 unambiguously defined by ENGINEs and used consistently across any
3861 OpenSSL-based application. Commands have been added to all the
3862 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3863 control over shared-library paths without source code alterations.
3866 *) Changed all ENGINE implementations to dynamically allocate their
3867 ENGINEs rather than declaring them statically. Apart from this being
3868 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3869 this also allows the implementations to compile without using the
3870 internal engine_int.h header.
3873 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3874 'const' value. Any code that should be able to modify a RAND_METHOD
3875 should already have non-const pointers to it (ie. they should only
3876 modify their own ones).
3879 *) Made a variety of little tweaks to the ENGINE code.
3880 - "atalla" and "ubsec" string definitions were moved from header files
3881 to C code. "nuron" string definitions were placed in variables
3882 rather than hard-coded - allowing parameterisation of these values
3883 later on via ctrl() commands.
3884 - Removed unused "#if 0"'d code.
3885 - Fixed engine list iteration code so it uses ENGINE_free() to release
3886 structural references.
3887 - Constified the RAND_METHOD element of ENGINE structures.
3888 - Constified various get/set functions as appropriate and added
3889 missing functions (including a catch-all ENGINE_cpy that duplicates
3890 all ENGINE values onto a new ENGINE except reference counts/state).
3891 - Removed NULL parameter checks in get/set functions. Setting a method
3892 or function to NULL is a way of cancelling out a previously set
3893 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3894 and doesn't justify the extra error symbols and code.
3895 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3896 flags from engine_int.h to engine.h.
3897 - Changed prototypes for ENGINE handler functions (init(), finish(),
3898 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3901 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3902 to the algorithm using long division. The binary algorithm can be
3903 used only if the modulus is odd. On 32-bit systems, it is faster
3904 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3905 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3906 up to 450 bits. In 64-bit environments, the binary algorithm
3907 appears to be advantageous for much longer moduli; here we use it
3908 for moduli up to 2048 bits.
3911 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3912 could not support the combine flag in choice fields.
3915 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3916 extensions from a certificate request to the certificate.
3919 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3920 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3921 file: this allows the display of the certificate about to be
3922 signed to be customised, to allow certain fields to be included
3923 or excluded and extension details. The old system didn't display
3924 multicharacter strings properly, omitted fields not in the policy
3925 and couldn't display additional details such as extensions.
3928 *) Function EC_POINTs_mul for multiple scalar multiplication
3929 of an arbitrary number of elliptic curve points
3930 \sum scalars[i]*points[i],
3931 optionally including the generator defined for the EC_GROUP:
3932 scalar*generator + \sum scalars[i]*points[i].
3934 EC_POINT_mul is a simple wrapper function for the typical case
3935 that the point list has just one item (besides the optional
3939 *) First EC_METHODs for curves over GF(p):
3941 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3942 operations and provides various method functions that can also
3943 operate with faster implementations of modular arithmetic.
3945 EC_GFp_mont_method() reuses most functions that are part of
3946 EC_GFp_simple_method, but uses Montgomery arithmetic.
3948 [Bodo Moeller; point addition and point doubling
3949 implementation directly derived from source code provided by
3950 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3952 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3953 crypto/ec/ec_lib.c):
3955 Curves are EC_GROUP objects (with an optional group generator)
3956 based on EC_METHODs that are built into the library.
3958 Points are EC_POINT objects based on EC_GROUP objects.
3960 Most of the framework would be able to handle curves over arbitrary
3961 finite fields, but as there are no obvious types for fields other
3962 than GF(p), some functions are limited to that for now.
3965 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3966 that the file contains a complete HTTP response.
3969 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3970 change the def and num file printf format specifier from "%-40sXXX"
3971 to "%-39s XXX". The latter will always guarantee a space after the
3972 field while the former will cause them to run together if the field
3973 is 40 of more characters long.
3976 *) Constify the cipher and digest 'method' functions and structures
3977 and modify related functions to take constant EVP_MD and EVP_CIPHER
3981 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3982 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3985 *) Modify EVP_Digest*() routines so they now return values. Although the
3986 internal software routines can never fail additional hardware versions
3990 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3992 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3993 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3996 ERR_R_NESTED_ASN1_ERROR
3998 ERR_R_MISSING_ASN1_EOS
3999 were 4 .. 9, conflicting with
4000 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4002 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4003 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4005 Add new error code 'ERR_R_INTERNAL_ERROR'.
4008 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4012 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4013 sets the subject name for a new request or supersedes the
4014 subject name in a given request. Formats that can be parsed are
4015 'CN=Some Name, OU=myOU, C=IT'
4017 'CN=Some Name/OU=myOU/C=IT'.
4019 Add options '-batch' and '-verbose' to 'openssl req'.
4020 [Massimiliano Pala <madwolf@hackmasters.net>]
4022 *) Introduce the possibility to access global variables through
4023 functions on platform were that's the best way to handle exporting
4024 global variables in shared libraries. To enable this functionality,
4025 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4026 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4027 is normally done by Configure or something similar).
4029 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4030 in the source file (foo.c) like this:
4032 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4033 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4035 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4036 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4038 OPENSSL_DECLARE_GLOBAL(int,foo);
4039 #define foo OPENSSL_GLOBAL_REF(foo)
4040 OPENSSL_DECLARE_GLOBAL(double,bar);
4041 #define bar OPENSSL_GLOBAL_REF(bar)
4043 The #defines are very important, and therefore so is including the
4044 header file everywhere where the defined globals are used.
4046 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4047 of ASN.1 items, but that structure is a bit different.
4049 The largest change is in util/mkdef.pl which has been enhanced with
4050 better and easier to understand logic to choose which symbols should
4051 go into the Windows .def files as well as a number of fixes and code
4052 cleanup (among others, algorithm keywords are now sorted
4053 lexicographically to avoid constant rewrites).
4056 *) In BN_div() keep a copy of the sign of 'num' before writing the
4057 result to 'rm' because if rm==num the value will be overwritten
4058 and produce the wrong result if 'num' is negative: this caused
4059 problems with BN_mod() and BN_nnmod().
4062 *) Function OCSP_request_verify(). This checks the signature on an
4063 OCSP request and verifies the signer certificate. The signer
4064 certificate is just checked for a generic purpose and OCSP request
4068 *) Add OCSP_check_validity() function to check the validity of OCSP
4069 responses. OCSP responses are prepared in real time and may only
4070 be a few seconds old. Simply checking that the current time lies
4071 between thisUpdate and nextUpdate max reject otherwise valid responses
4072 caused by either OCSP responder or client clock inaccuracy. Instead
4073 we allow thisUpdate and nextUpdate to fall within a certain period of
4074 the current time. The age of the response can also optionally be
4075 checked. Two new options -validity_period and -status_age added to
4079 *) If signature or public key algorithm is unrecognized print out its
4080 OID rather that just UNKNOWN.
4083 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4084 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4085 ID to be generated from the issuer certificate alone which can then be
4086 passed to OCSP_id_issuer_cmp().
4089 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4090 ASN1 modules to export functions returning ASN1_ITEM pointers
4091 instead of the ASN1_ITEM structures themselves. This adds several
4092 new macros which allow the underlying ASN1 function/structure to
4093 be accessed transparently. As a result code should not use ASN1_ITEM
4094 references directly (such as &X509_it) but instead use the relevant
4095 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4096 use of the new ASN1 code on platforms where exporting structures
4097 is problematical (for example in shared libraries) but exporting
4098 functions returning pointers to structures is not.
4101 *) Add support for overriding the generation of SSL/TLS session IDs.
4102 These callbacks can be registered either in an SSL_CTX or per SSL.
4103 The purpose of this is to allow applications to control, if they wish,
4104 the arbitrary values chosen for use as session IDs, particularly as it
4105 can be useful for session caching in multiple-server environments. A
4106 command-line switch for testing this (and any client code that wishes
4107 to use such a feature) has been added to "s_server".
4108 [Geoff Thorpe, Lutz Jaenicke]
4110 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4111 of the form '#if defined(...) || defined(...) || ...' and
4112 '#if !defined(...) && !defined(...) && ...'. This also avoids
4113 the growing number of special cases it was previously handling.
4116 *) Make all configuration macros available for application by making
4117 sure they are available in opensslconf.h, by giving them names starting
4118 with "OPENSSL_" to avoid conflicts with other packages and by making
4119 sure e_os2.h will cover all platform-specific cases together with
4121 Additionally, it is now possible to define configuration/platform-
4122 specific names (called "system identities"). In the C code, these
4123 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4124 macro with the name beginning with "OPENSSL_SYS_", which is determined
4125 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4129 *) New option -set_serial to 'req' and 'x509' this allows the serial
4130 number to use to be specified on the command line. Previously self
4131 signed certificates were hard coded with serial number 0 and the
4132 CA options of 'x509' had to use a serial number in a file which was
4136 *) New options to 'ca' utility to support V2 CRL entry extensions.
4137 Currently CRL reason, invalidity date and hold instruction are
4138 supported. Add new CRL extensions to V3 code and some new objects.
4141 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4142 disable standard block padding (aka PKCS#5 padding) in the EVP
4143 API, which was previously mandatory. This means that the data is
4144 not padded in any way and so the total length much be a multiple
4145 of the block size, otherwise an error occurs.
4148 *) Initial (incomplete) OCSP SSL support.
4151 *) New function OCSP_parse_url(). This splits up a URL into its host,
4152 port and path components: primarily to parse OCSP URLs. New -url
4153 option to ocsp utility.
4156 *) New nonce behavior. The return value of OCSP_check_nonce() now
4157 reflects the various checks performed. Applications can decide
4158 whether to tolerate certain situations such as an absent nonce
4159 in a response when one was present in a request: the ocsp application
4160 just prints out a warning. New function OCSP_add1_basic_nonce()
4161 this is to allow responders to include a nonce in a response even if
4162 the request is nonce-less.
4165 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4166 skipped when using openssl x509 multiple times on a single input file,
4167 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4170 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4171 set string type: to handle setting ASN1_TIME structures. Fix ca
4172 utility to correctly initialize revocation date of CRLs.
4175 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4176 the clients preferred ciphersuites and rather use its own preferences.
4177 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4178 Internet Explorer by ensuring unchanged hash method during stepup.
4179 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4182 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4183 to aes and add a new 'exist' option to print out symbols that don't
4187 *) Additional options to ocsp utility to allow flags to be set and
4188 additional certificates supplied.
4191 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4192 OCSP client a number of certificate to only verify the response
4196 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4197 handle the new API. Currently only ECB, CBC modes supported. Add new
4200 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4201 Encryption Standard (AES) Ciphersuites for Transport Layer
4202 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4203 not enabled by default and were not part of the "ALL" ciphersuite
4204 alias because they were not yet official; they could be
4205 explicitly requested by specifying the "AESdraft" ciphersuite
4206 group alias. In the final release of OpenSSL 0.9.7, the group
4207 alias is called "AES" and is part of "ALL".)
4208 [Ben Laurie, Steve Henson, Bodo Moeller]
4210 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4211 request to response.
4214 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4215 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4216 extract information from a certificate request. OCSP_response_create()
4217 creates a response and optionally adds a basic response structure.
4218 OCSP_basic_add1_status() adds a complete single response to a basic
4219 response and returns the OCSP_SINGLERESP structure just added (to allow
4220 extensions to be included for example). OCSP_basic_add1_cert() adds a
4221 certificate to a basic response and OCSP_basic_sign() signs a basic
4222 response with various flags. New helper functions ASN1_TIME_check()
4223 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4224 (converts ASN1_TIME to GeneralizedTime).
4227 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4228 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4229 structure from a certificate. X509_pubkey_digest() digests the public_key
4230 contents: this is used in various key identifiers.
4233 *) Make sk_sort() tolerate a NULL argument.
4234 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4236 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4237 passed by the function are trusted implicitly. If any of them signed the
4238 response then it is assumed to be valid and is not verified.
4241 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4242 to data. This was previously part of the PKCS7 ASN1 code. This
4243 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4244 [Steve Henson, reported by Kenneth R. Robinette
4245 <support@securenetterm.com>]
4247 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4248 routines: without these tracing memory leaks is very painful.
4249 Fix leaks in PKCS12 and PKCS7 routines.
4252 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4253 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4254 effectively meant GeneralizedTime would never be used. Now it
4255 is initialised to -1 but X509_time_adj() now has to check the value
4256 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4257 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4258 [Steve Henson, reported by Kenneth R. Robinette
4259 <support@securenetterm.com>]
4261 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4262 result in a zero length in the ASN1_INTEGER structure which was
4263 not consistent with the structure when d2i_ASN1_INTEGER() was used
4264 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4265 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4266 where it did not print out a minus for negative ASN1_INTEGER.
4269 *) Add summary printout to ocsp utility. The various functions which
4270 convert status values to strings have been renamed to:
4271 OCSP_response_status_str(), OCSP_cert_status_str() and
4272 OCSP_crl_reason_str() and are no longer static. New options
4273 to verify nonce values and to disable verification. OCSP response
4274 printout format cleaned up.
4277 *) Add additional OCSP certificate checks. These are those specified
4278 in RFC2560. This consists of two separate checks: the CA of the
4279 certificate being checked must either be the OCSP signer certificate
4280 or the issuer of the OCSP signer certificate. In the latter case the
4281 OCSP signer certificate must contain the OCSP signing extended key
4282 usage. This check is performed by attempting to match the OCSP
4283 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4284 in the OCSP_CERTID structures of the response.
4287 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4288 and related routines. This uses the standard OpenSSL certificate
4289 verify routines to perform initial checks (just CA validity) and
4290 to obtain the certificate chain. Then additional checks will be
4291 performed on the chain. Currently the root CA is checked to see
4292 if it is explicitly trusted for OCSP signing. This is used to set
4293 a root CA as a global signing root: that is any certificate that
4294 chains to that CA is an acceptable OCSP signing certificate.
4297 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4298 extensions from a separate configuration file.
4299 As when reading extensions from the main configuration file,
4300 the '-extensions ...' option may be used for specifying the
4302 [Massimiliano Pala <madwolf@comune.modena.it>]
4304 *) New OCSP utility. Allows OCSP requests to be generated or
4305 read. The request can be sent to a responder and the output
4306 parsed, outputed or printed in text form. Not complete yet:
4307 still needs to check the OCSP response validity.
4310 *) New subcommands for 'openssl ca':
4311 'openssl ca -status <serial>' prints the status of the cert with
4312 the given serial number (according to the index file).
4313 'openssl ca -updatedb' updates the expiry status of certificates
4315 [Massimiliano Pala <madwolf@comune.modena.it>]
4317 *) New '-newreq-nodes' command option to CA.pl. This is like
4318 '-newreq', but calls 'openssl req' with the '-nodes' option
4319 so that the resulting key is not encrypted.
4320 [Damien Miller <djm@mindrot.org>]
4322 *) New configuration for the GNU Hurd.
4323 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4325 *) Initial code to implement OCSP basic response verify. This
4326 is currently incomplete. Currently just finds the signer's
4327 certificate and verifies the signature on the response.
4330 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4331 value of OPENSSLDIR. This is available via the new '-d' option
4332 to 'openssl version', and is also included in 'openssl version -a'.
4335 *) Allowing defining memory allocation callbacks that will be given
4336 file name and line number information in additional arguments
4337 (a const char* and an int). The basic functionality remains, as
4338 well as the original possibility to just replace malloc(),
4339 realloc() and free() by functions that do not know about these
4340 additional arguments. To register and find out the current
4341 settings for extended allocation functions, the following
4342 functions are provided:
4344 CRYPTO_set_mem_ex_functions
4345 CRYPTO_set_locked_mem_ex_functions
4346 CRYPTO_get_mem_ex_functions
4347 CRYPTO_get_locked_mem_ex_functions
4349 These work the same way as CRYPTO_set_mem_functions and friends.
4350 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4351 extended allocation function is enabled.
4352 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4353 a conventional allocation function is enabled.
4354 [Richard Levitte, Bodo Moeller]
4356 *) Finish off removing the remaining LHASH function pointer casts.
4357 There should no longer be any prototype-casting required when using
4358 the LHASH abstraction, and any casts that remain are "bugs". See
4359 the callback types and macros at the head of lhash.h for details
4360 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4363 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4364 If /dev/[u]random devices are not available or do not return enough
4365 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4367 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4368 /etc/entropy will be queried once each in this sequence, quering stops
4369 when enough entropy was collected without querying more sockets.
4372 *) Change the Unix RAND_poll() variant to be able to poll several
4373 random devices, as specified by DEVRANDOM, until a sufficient amount
4374 of data has been collected. We spend at most 10 ms on each file
4375 (select timeout) and read in non-blocking mode. DEVRANDOM now
4376 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4377 (previously it was just the string "/dev/urandom"), so on typical
4378 platforms the 10 ms delay will never occur.
4379 Also separate out the Unix variant to its own file, rand_unix.c.
4380 For VMS, there's a currently-empty rand_vms.c.
4383 *) Move OCSP client related routines to ocsp_cl.c. These
4384 provide utility functions which an application needing
4385 to issue a request to an OCSP responder and analyse the
4386 response will typically need: as opposed to those which an
4387 OCSP responder itself would need which will be added later.
4389 OCSP_request_sign() signs an OCSP request with an API similar
4390 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4391 response. OCSP_response_get1_basic() extracts basic response
4392 from response. OCSP_resp_find_status(): finds and extracts status
4393 information from an OCSP_CERTID structure (which will be created
4394 when the request structure is built). These are built from lower
4395 level functions which work on OCSP_SINGLERESP structures but
4396 wont normally be used unless the application wishes to examine
4397 extensions in the OCSP response for example.
4399 Replace nonce routines with a pair of functions.
4400 OCSP_request_add1_nonce() adds a nonce value and optionally
4401 generates a random value. OCSP_check_nonce() checks the
4402 validity of the nonce in an OCSP response.
4405 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4406 This doesn't copy the supplied OCSP_CERTID and avoids the
4407 need to free up the newly created id. Change return type
4408 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4409 This can then be used to add extensions to the request.
4410 Deleted OCSP_request_new(), since most of its functionality
4411 is now in OCSP_REQUEST_new() (and the case insensitive name
4412 clash) apart from the ability to set the request name which
4413 will be added elsewhere.
4416 *) Update OCSP API. Remove obsolete extensions argument from
4417 various functions. Extensions are now handled using the new
4418 OCSP extension code. New simple OCSP HTTP function which
4419 can be used to send requests and parse the response.
4422 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4423 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4424 uses the special reorder version of SET OF to sort the attributes
4425 and reorder them to match the encoded order. This resolves a long
4426 standing problem: a verify on a PKCS7 structure just after signing
4427 it used to fail because the attribute order did not match the
4428 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4429 it uses the received order. This is necessary to tolerate some broken
4430 software that does not order SET OF. This is handled by encoding
4431 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4432 to produce the required SET OF.
4435 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4436 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4437 files to get correct declarations of the ASN.1 item variables.
4440 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4441 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4442 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4443 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4444 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4445 ASN1_ITEM and no wrapper functions.
4448 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4449 replace the old function pointer based I/O routines. Change most of
4450 the *_d2i_bio() and *_d2i_fp() functions to use these.
4453 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4454 lines, recognice more "algorithms" that can be deselected, and make
4455 it complain about algorithm deselection that isn't recognised.
4458 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4459 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4460 to use new functions. Add NO_ASN1_OLD which can be set to remove
4461 some old style ASN1 functions: this can be used to determine if old
4462 code will still work when these eventually go away.
4465 *) New extension functions for OCSP structures, these follow the
4466 same conventions as certificates and CRLs.
4469 *) New function X509V3_add1_i2d(). This automatically encodes and
4470 adds an extension. Its behaviour can be customised with various
4471 flags to append, replace or delete. Various wrappers added for
4472 certifcates and CRLs.
4475 *) Fix to avoid calling the underlying ASN1 print routine when
4476 an extension cannot be parsed. Correct a typo in the
4477 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4480 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4481 entries for variables.
4484 *) Add functionality to apps/openssl.c for detecting locking
4485 problems: As the program is single-threaded, all we have
4486 to do is register a locking callback using an array for
4487 storing which locks are currently held by the program.
4490 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4491 SSL_get_ex_data_X509_STORE_idx(), which is used in
4492 ssl_verify_cert_chain() and thus can be called at any time
4493 during TLS/SSL handshakes so that thread-safety is essential.
4494 Unfortunately, the ex_data design is not at all suited
4495 for multi-threaded use, so it probably should be abolished.
4498 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4499 [Broadcom, tweaked and integrated by Geoff Thorpe]
4501 *) Move common extension printing code to new function
4502 X509V3_print_extensions(). Reorganise OCSP print routines and
4503 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4506 *) New function X509_signature_print() to remove duplication in some
4510 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4511 set (this was treated exactly the same as SET OF previously). This
4512 is used to reorder the STACK representing the structure to match the
4513 encoding. This will be used to get round a problem where a PKCS7
4514 structure which was signed could not be verified because the STACK
4515 order did not reflect the encoded order.
4518 *) Reimplement the OCSP ASN1 module using the new code.
4521 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4522 for its ASN1 operations. The old style function pointers still exist
4523 for now but they will eventually go away.
4526 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4527 completely replaces the old ASN1 functionality with a table driven
4528 encoder and decoder which interprets an ASN1_ITEM structure describing
4529 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4530 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4531 has also been converted to the new form.
4534 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4535 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4536 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4537 for negative moduli.
4540 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4541 of not touching the result's sign bit.
4544 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4548 *) Changed the LHASH code to use prototypes for callbacks, and created
4549 macros to declare and implement thin (optionally static) functions
4550 that provide type-safety and avoid function pointer casting for the
4551 type-specific callbacks.
4554 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4556 [Veers Staats <staatsvr@asc.hpc.mil>,
4557 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4559 *) Reformat the FAQ so the different questions and answers can be divided
4560 in sections depending on the subject.
4563 *) Have the zlib compression code load ZLIB.DLL dynamically under
4567 *) New function BN_mod_sqrt for computing square roots modulo a prime
4568 (using the probabilistic Tonelli-Shanks algorithm unless
4569 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4570 be handled deterministically).
4571 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4573 *) Make BN_mod_inverse faster by explicitly handling small quotients
4574 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4575 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4578 *) New function BN_kronecker.
4581 *) Fix BN_gcd so that it works on negative inputs; the result is
4582 positive unless both parameters are zero.
4583 Previously something reasonably close to an infinite loop was
4584 possible because numbers could be growing instead of shrinking
4585 in the implementation of Euclid's algorithm.
4588 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4589 sign of the number in question.
4591 Fix BN_is_word(a,w) to work correctly for w == 0.
4593 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4594 because its test if the absolute value of 'a' equals 'w'.
4595 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4596 it exists mostly for use in the implementations of BN_is_zero(),
4597 BN_is_one(), and BN_is_word().
4600 *) New function BN_swap.
4603 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4604 the exponentiation functions are more likely to produce reasonable
4605 results on negative inputs.
4608 *) Change BN_mod_mul so that the result is always non-negative.
4609 Previously, it could be negative if one of the factors was negative;
4610 I don't think anyone really wanted that behaviour.
4613 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4614 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4615 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4616 and add new functions:
4625 BN_mod_lshift1_quick
4629 These functions always generate non-negative results.
4631 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4632 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4634 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4635 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4636 be reduced modulo m.
4637 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4640 The following entry accidentily appeared in the CHANGES file
4641 distributed with OpenSSL 0.9.7. The modifications described in
4642 it do *not* apply to OpenSSL 0.9.7.
4644 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4645 was actually never needed) and in BN_mul(). The removal in BN_mul()
4646 required a small change in bn_mul_part_recursive() and the addition
4647 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4648 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4649 bn_sub_words() and bn_add_words() except they take arrays with
4654 *) In 'openssl passwd', verify passwords read from the terminal
4655 unless the '-salt' option is used (which usually means that
4656 verification would just waste user's time since the resulting
4657 hash is going to be compared with some given password hash)
4658 or the new '-noverify' option is used.
4660 This is an incompatible change, but it does not affect
4661 non-interactive use of 'openssl passwd' (passwords on the command
4662 line, '-stdin' option, '-in ...' option) and thus should not
4666 *) Remove all references to RSAref, since there's no more need for it.
4669 *) Make DSO load along a path given through an environment variable
4670 (SHLIB_PATH) with shl_load().
4673 *) Constify the ENGINE code as a result of BIGNUM constification.
4674 Also constify the RSA code and most things related to it. In a
4675 few places, most notable in the depth of the ASN.1 code, ugly
4676 casts back to non-const were required (to be solved at a later
4680 *) Make it so the openssl application has all engines loaded by default.
4683 *) Constify the BIGNUM routines a little more.
4686 *) Add the following functions:
4688 ENGINE_load_cswift()
4690 ENGINE_load_atalla()
4692 ENGINE_load_builtin_engines()
4694 That way, an application can itself choose if external engines that
4695 are built-in in OpenSSL shall ever be used or not. The benefit is
4696 that applications won't have to be linked with libdl or other dso
4697 libraries unless it's really needed.
4699 Changed 'openssl engine' to load all engines on demand.
4700 Changed the engine header files to avoid the duplication of some
4701 declarations (they differed!).
4704 *) 'openssl engine' can now list capabilities.
4707 *) Better error reporting in 'openssl engine'.
4710 *) Never call load_dh_param(NULL) in s_server.
4713 *) Add engine application. It can currently list engines by name and
4714 identity, and test if they are actually available.
4717 *) Improve RPM specification file by forcing symbolic linking and making
4718 sure the installed documentation is also owned by root.root.
4719 [Damien Miller <djm@mindrot.org>]
4721 *) Give the OpenSSL applications more possibilities to make use of
4722 keys (public as well as private) handled by engines.
4725 *) Add OCSP code that comes from CertCo.
4728 *) Add VMS support for the Rijndael code.
4731 *) Added untested support for Nuron crypto accelerator.
4734 *) Add support for external cryptographic devices. This code was
4735 previously distributed separately as the "engine" branch.
4736 [Geoff Thorpe, Richard Levitte]
4738 *) Rework the filename-translation in the DSO code. It is now possible to
4739 have far greater control over how a "name" is turned into a filename
4740 depending on the operating environment and any oddities about the
4741 different shared library filenames on each system.
4744 *) Support threads on FreeBSD-elf in Configure.
4747 *) Fix for SHA1 assembly problem with MASM: it produces
4748 warnings about corrupt line number information when assembling
4749 with debugging information. This is caused by the overlapping
4751 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4754 NCONF_get_number() has no error checking at all. As a replacement,
4755 NCONF_get_number_e() is defined (_e for "error checking") and is
4756 promoted strongly. The old NCONF_get_number is kept around for
4757 binary backward compatibility.
4758 Make it possible for methods to load from something other than a BIO,
4759 by providing a function pointer that is given a name instead of a BIO.
4760 For example, this could be used to load configuration data from an
4764 *) Fix for non blocking accept BIOs. Added new I/O special reason
4765 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4766 with non blocking I/O was not possible because no retry code was
4767 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4771 *) Added the beginnings of Rijndael support.
4774 *) Fix for bug in DirectoryString mask setting. Add support for
4775 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4776 to allow certificate printing to more controllable, additional
4777 'certopt' option to 'x509' to allow new printing options to be
4781 *) Clean old EAY MD5 hack from e_os.h.
4784 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4786 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4787 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4788 [Joe Orton, Steve Henson]
4790 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4792 *) Fix additional bug revealed by the NISCC test suite:
4794 Stop bug triggering large recursion when presented with
4795 certain ASN.1 tags (CVE-2003-0851)
4798 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4800 *) Fix various bugs revealed by running the NISCC test suite:
4802 Stop out of bounds reads in the ASN1 code when presented with
4803 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4805 If verify callback ignores invalid public key errors don't try to check
4806 certificate signature with the NULL public key.
4810 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4811 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4815 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4816 extra data after the compression methods not only for TLS 1.0
4817 but also for SSL 3.0 (as required by the specification).
4818 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4820 *) Change X509_certificate_type() to mark the key as exported/exportable
4821 when it's 512 *bits* long, not 512 bytes.
4824 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4826 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4827 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4828 a protocol version number mismatch like a decryption error
4829 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4832 *) Turn on RSA blinding by default in the default implementation
4833 to avoid a timing attack. Applications that don't want it can call
4834 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4835 They would be ill-advised to do so in most cases.
4836 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4838 *) Change RSA blinding code so that it works when the PRNG is not
4839 seeded (in this case, the secret RSA exponent is abused as
4840 an unpredictable seed -- if it is not unpredictable, there
4841 is no point in blinding anyway). Make RSA blinding thread-safe
4842 by remembering the creator's thread ID in rsa->blinding and
4843 having all other threads use local one-time blinding factors
4844 (this requires more computation than sharing rsa->blinding, but
4845 avoids excessive locking; and if an RSA object is not shared
4846 between threads, blinding will still be very fast).
4849 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4851 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4852 via timing by performing a MAC computation even if incorrrect
4853 block cipher padding has been found. This is a countermeasure
4854 against active attacks where the attacker has to distinguish
4855 between bad padding and a MAC verification error. (CVE-2003-0078)
4857 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4858 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4859 Martin Vuagnoux (EPFL, Ilion)]
4861 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4863 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4864 memory from it's contents. This is done with a counter that will
4865 place alternating values in each byte. This can be used to solve
4866 two issues: 1) the removal of calls to memset() by highly optimizing
4867 compilers, and 2) cleansing with other values than 0, since those can
4868 be read through on certain media, for example a swap space on disk.
4871 *) Bugfix: client side session caching did not work with external caching,
4872 because the session->cipher setting was not restored when reloading
4873 from the external cache. This problem was masked, when
4874 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4875 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4878 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4879 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4880 [Zeev Lieber <zeev-l@yahoo.com>]
4882 *) Undo an undocumented change introduced in 0.9.6e which caused
4883 repeated calls to OpenSSL_add_all_ciphers() and
4884 OpenSSL_add_all_digests() to be ignored, even after calling
4888 *) Change the default configuration reader to deal with last line not
4889 being properly terminated.
4892 *) Change X509_NAME_cmp() so it applies the special rules on handling
4893 DN values that are of type PrintableString, as well as RDNs of type
4894 emailAddress where the value has the type ia5String.
4895 [stefank@valicert.com via Richard Levitte]
4897 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4898 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4899 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4900 the bitwise-OR of the two for use by the majority of applications
4901 wanting this behaviour, and update the docs. The documented
4902 behaviour and actual behaviour were inconsistent and had been
4903 changing anyway, so this is more a bug-fix than a behavioural
4905 [Geoff Thorpe, diagnosed by Nadav Har'El]
4907 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4908 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4911 *) Fix initialization code race conditions in
4912 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4913 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4914 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4915 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4916 ssl2_get_cipher_by_char(),
4917 ssl3_get_cipher_by_char().
4918 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4920 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4921 the cached sessions are flushed, as the remove_cb() might use ex_data
4922 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4923 (see [openssl.org #212]).
4924 [Geoff Thorpe, Lutz Jaenicke]
4926 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4927 length, instead of the encoding length to d2i_ASN1_OBJECT.
4930 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4932 *) [In 0.9.6g-engine release:]
4933 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4934 [Lynn Gazis <lgazis@rainbow.com>]
4936 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4938 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4939 and get fix the header length calculation.
4940 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4941 Alon Kantor <alonk@checkpoint.com> (and others),
4944 *) Use proper error handling instead of 'assertions' in buffer
4945 overflow checks added in 0.9.6e. This prevents DoS (the
4946 assertions could call abort()).
4947 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4949 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4951 *) Add various sanity checks to asn1_get_length() to reject
4952 the ASN1 length bytes if they exceed sizeof(long), will appear
4953 negative or the content length exceeds the length of the
4955 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4957 *) Fix cipher selection routines: ciphers without encryption had no flags
4958 for the cipher strength set and where therefore not handled correctly
4959 by the selection routines (PR #130).
4962 *) Fix EVP_dsa_sha macro.
4966 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4967 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4968 that was added in OpenSSL 0.9.6d.
4970 As the countermeasure turned out to be incompatible with some
4971 broken SSL implementations, the new option is part of SSL_OP_ALL.
4972 SSL_OP_ALL is usually employed when compatibility with weird SSL
4973 implementations is desired (e.g. '-bugs' option to 's_client' and
4974 's_server'), so the new option is automatically set in many
4978 *) Changes in security patch:
4980 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4981 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4982 Air Force Materiel Command, USAF, under agreement number
4985 *) Add various sanity checks to asn1_get_length() to reject
4986 the ASN1 length bytes if they exceed sizeof(long), will appear
4987 negative or the content length exceeds the length of the
4988 supplied buffer. (CVE-2002-0659)
4989 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4991 *) Assertions for various potential buffer overflows, not known to
4993 [Ben Laurie (CHATS)]
4995 *) Various temporary buffers to hold ASCII versions of integers were
4996 too small for 64 bit platforms. (CVE-2002-0655)
4997 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4999 *) Remote buffer overflow in SSL3 protocol - an attacker could
5000 supply an oversized session ID to a client. (CVE-2002-0656)
5001 [Ben Laurie (CHATS)]
5003 *) Remote buffer overflow in SSL2 protocol - an attacker could
5004 supply an oversized client master key. (CVE-2002-0656)
5005 [Ben Laurie (CHATS)]
5007 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5009 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5010 encoded as NULL) with id-dsa-with-sha1.
5011 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5013 *) Check various X509_...() return values in apps/req.c.
5014 [Nils Larsch <nla@trustcenter.de>]
5016 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5017 an end-of-file condition would erronously be flagged, when the CRLF
5018 was just at the end of a processed block. The bug was discovered when
5019 processing data through a buffering memory BIO handing the data to a
5020 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5021 <ptsekov@syntrex.com> and Nedelcho Stanev.
5024 *) Implement a countermeasure against a vulnerability recently found
5025 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5026 before application data chunks to avoid the use of known IVs
5027 with data potentially chosen by the attacker.
5030 *) Fix length checks in ssl3_get_client_hello().
5033 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5034 to prevent ssl3_read_internal() from incorrectly assuming that
5035 ssl3_read_bytes() found application data while handshake
5036 processing was enabled when in fact s->s3->in_read_app_data was
5037 merely automatically cleared during the initial handshake.
5038 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5040 *) Fix object definitions for Private and Enterprise: they were not
5041 recognized in their shortname (=lowercase) representation. Extend
5042 obj_dat.pl to issue an error when using undefined keywords instead
5043 of silently ignoring the problem (Svenning Sorensen
5044 <sss@sss.dnsalias.net>).
5047 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5048 generators, i.e. generators other than 2 and 5. (Previously, the
5049 code did not properly initialise the 'add' and 'rem' values to
5050 BN_generate_prime().)
5052 In the new general case, we do not insist that 'generator' is
5053 actually a primitive root: This requirement is rather pointless;
5054 a generator of the order-q subgroup is just as good, if not
5058 *) Map new X509 verification errors to alerts. Discovered and submitted by
5059 Tom Wu <tom@arcot.com>.
5062 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5063 returning non-zero before the data has been completely received
5064 when using non-blocking I/O.
5065 [Bodo Moeller; problem pointed out by John Hughes]
5067 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5068 [Ben Laurie, Lutz Jaenicke]
5070 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5071 Yoram Zahavi <YoramZ@gilian.com>).
5074 *) Add information about CygWin 1.3 and on, and preserve proper
5075 configuration for the versions before that.
5076 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5078 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5079 check whether we deal with a copy of a session and do not delete from
5080 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5081 <izhar@checkpoint.com>.
5084 *) Do not store session data into the internal session cache, if it
5085 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5086 flag is set). Proposed by Aslam <aslam@funk.com>.
5089 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5093 *) [In 0.9.6d-engine release:]
5094 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5095 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5097 *) Add the configuration target linux-s390x.
5098 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5100 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5101 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5102 variable as an indication that a ClientHello message has been
5103 received. As the flag value will be lost between multiple
5104 invocations of ssl3_accept when using non-blocking I/O, the
5105 function may not be aware that a handshake has actually taken
5106 place, thus preventing a new session from being added to the
5109 To avoid this problem, we now set s->new_session to 2 instead of
5110 using a local variable.
5111 [Lutz Jaenicke, Bodo Moeller]
5113 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5114 if the SSL_R_LENGTH_MISMATCH error is detected.
5115 [Geoff Thorpe, Bodo Moeller]
5117 *) New 'shared_ldflag' column in Configure platform table.
5120 *) Fix EVP_CIPHER_mode macro.
5121 ["Dan S. Camper" <dan@bti.net>]
5123 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5124 type, we must throw them away by setting rr->length to 0.
5125 [D P Chang <dpc@qualys.com>]
5127 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5129 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5130 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5131 worked incorrectly for those cases where range = 10..._2 and
5132 3*range is two bits longer than range.)
5135 *) Only add signing time to PKCS7 structures if it is not already
5139 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5140 OBJ_ld_ce should be OBJ_id_ce.
5141 Also some ip-pda OIDs in crypto/objects/objects.txt were
5142 incorrect (cf. RFC 3039).
5143 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5145 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5146 returns early because it has nothing to do.
5147 [Andy Schneider <andy.schneider@bjss.co.uk>]
5149 *) [In 0.9.6c-engine release:]
5150 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5151 [Andy Schneider <andy.schneider@bjss.co.uk>]
5153 *) [In 0.9.6c-engine release:]
5154 Add support for Cryptographic Appliance's keyserver technology.
5155 (Use engine 'keyclient')
5156 [Cryptographic Appliances and Geoff Thorpe]
5158 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5159 is called via tools/c89.sh because arguments have to be
5160 rearranged (all '-L' options must appear before the first object
5162 [Richard Shapiro <rshapiro@abinitio.com>]
5164 *) [In 0.9.6c-engine release:]
5165 Add support for Broadcom crypto accelerator cards, backported
5167 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5169 *) [In 0.9.6c-engine release:]
5170 Add support for SureWare crypto accelerator cards from
5171 Baltimore Technologies. (Use engine 'sureware')
5172 [Baltimore Technologies and Mark Cox]
5174 *) [In 0.9.6c-engine release:]
5175 Add support for crypto accelerator cards from Accelerated
5176 Encryption Processing, www.aep.ie. (Use engine 'aep')
5177 [AEP Inc. and Mark Cox]
5179 *) Add a configuration entry for gcc on UnixWare.
5180 [Gary Benson <gbenson@redhat.com>]
5182 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5183 messages are stored in a single piece (fixed-length part and
5184 variable-length part combined) and fix various bugs found on the way.
5187 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5188 instead. BIO_gethostbyname() does not know what timeouts are
5189 appropriate, so entries would stay in cache even when they have
5191 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5193 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5194 faced with a pathologically small ClientHello fragment that does
5195 not contain client_version: Instead of aborting with an error,
5196 simply choose the highest available protocol version (i.e.,
5197 TLS 1.0 unless it is disabled). In practice, ClientHello
5198 messages are never sent like this, but this change gives us
5199 strictly correct behaviour at least for TLS.
5202 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5203 never resets s->method to s->ctx->method when called from within
5204 one of the SSL handshake functions.
5205 [Bodo Moeller; problem pointed out by Niko Baric]
5207 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5208 (sent using the client's version number) if client_version is
5209 smaller than the protocol version in use. Also change
5210 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5211 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5212 the client will at least see that alert.
5215 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5219 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5220 client receives HelloRequest while in a handshake.
5221 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5223 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5224 should end in 'break', not 'goto end' which circuments various
5225 cleanups done in state SSL_ST_OK. But session related stuff
5226 must be disabled for SSL_ST_OK in the case that we just sent a
5229 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5230 before just sending a HelloRequest.
5231 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5233 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5234 reveal whether illegal block cipher padding was found or a MAC
5235 verification error occured. (Neither SSLerr() codes nor alerts
5236 are directly visible to potential attackers, but the information
5237 may leak via logfiles.)
5239 Similar changes are not required for the SSL 2.0 implementation
5240 because the number of padding bytes is sent in clear for SSL 2.0,
5241 and the extra bytes are just ignored. However ssl/s2_pkt.c
5242 failed to verify that the purported number of padding bytes is in
5246 *) Add OpenUNIX-8 support including shared libraries
5247 (Boyd Lynn Gerber <gerberb@zenez.com>).
5250 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5251 'wristwatch attack' using huge encoding parameters (cf.
5252 James H. Manger's CRYPTO 2001 paper). Note that the
5253 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5254 encoding parameters and hence was not vulnerable.
5257 *) BN_sqr() bug fix.
5258 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5260 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5261 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5262 followed by modular reduction.
5263 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5265 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5266 equivalent based on BN_pseudo_rand() instead of BN_rand().
5269 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5270 This function was broken, as the check for a new client hello message
5271 to handle SGC did not allow these large messages.
5272 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5275 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5278 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5279 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5282 *) Rework the configuration and shared library support for Tru64 Unix.
5283 The configuration part makes use of modern compiler features and
5284 still retains old compiler behavior for those that run older versions
5285 of the OS. The shared library support part includes a variant that
5286 uses the RPATH feature, and is available through the special
5287 configuration target "alpha-cc-rpath", which will never be selected
5289 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5291 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5292 with the same message size as in ssl3_get_certificate_request().
5293 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5294 messages might inadvertently be reject as too long.
5295 [Petr Lampa <lampa@fee.vutbr.cz>]
5297 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5300 *) Modified SSL library such that the verify_callback that has been set
5301 specificly for an SSL object with SSL_set_verify() is actually being
5302 used. Before the change, a verify_callback set with this function was
5303 ignored and the verify_callback() set in the SSL_CTX at the time of
5304 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5305 to allow the necessary settings.
5308 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5309 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5310 done automatically (in contradiction to the requirements of the C
5311 standard). This made problems when used from OpenSSH.
5314 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5315 dh->length and always used
5317 BN_rand_range(priv_key, dh->p).
5319 BN_rand_range() is not necessary for Diffie-Hellman, and this
5320 specific range makes Diffie-Hellman unnecessarily inefficient if
5321 dh->length (recommended exponent length) is much smaller than the
5322 length of dh->p. We could use BN_rand_range() if the order of
5323 the subgroup was stored in the DH structure, but we only have
5328 BN_rand(priv_key, l, ...)
5330 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5336 RSA_eay_public_encrypt
5337 RSA_eay_private_decrypt
5338 RSA_eay_private_encrypt (signing)
5339 RSA_eay_public_decrypt (signature verification)
5341 (default implementations for RSA_public_encrypt,
5342 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5343 always reject numbers >= n.
5346 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5347 to synchronize access to 'locking_thread'. This is necessary on
5348 systems where access to 'locking_thread' (an 'unsigned long'
5349 variable) is not atomic.
5352 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5353 *before* setting the 'crypto_lock_rand' flag. The previous code had
5354 a race condition if 0 is a valid thread ID.
5355 [Travis Vitek <vitek@roguewave.com>]
5357 *) Add support for shared libraries under Irix.
5358 [Albert Chin-A-Young <china@thewrittenword.com>]
5360 *) Add configuration option to build on Linux on both big-endian and
5362 [Ralf Baechle <ralf@uni-koblenz.de>]
5364 *) Add the possibility to create shared libraries on HP-UX.
5367 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5369 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5370 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5371 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5372 PRNG state recovery was possible based on the output of
5373 one PRNG request appropriately sized to gain knowledge on
5374 'md' followed by enough consecutive 1-byte PRNG requests
5375 to traverse all of 'state'.
5377 1. When updating 'md_local' (the current thread's copy of 'md')
5378 during PRNG output generation, hash all of the previous
5379 'md_local' value, not just the half used for PRNG output.
5381 2. Make the number of bytes from 'state' included into the hash
5382 independent from the number of PRNG bytes requested.
5384 The first measure alone would be sufficient to avoid
5385 Markku-Juhani's attack. (Actually it had never occurred
5386 to me that the half of 'md_local' used for chaining was the
5387 half from which PRNG output bytes were taken -- I had always
5388 assumed that the secret half would be used.) The second
5389 measure makes sure that additional data from 'state' is never
5390 mixed into 'md_local' in small portions; this heuristically
5391 further strengthens the PRNG.
5394 *) Fix crypto/bn/asm/mips3.s.
5397 *) When only the key is given to "enc", the IV is undefined. Print out
5398 an error message in this case.
5401 *) Handle special case when X509_NAME is empty in X509 printing routines.
5404 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5405 positive and less than q.
5408 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5409 used: it isn't thread safe and the add_lock_callback should handle
5411 [Paul Rose <Paul.Rose@bridge.com>]
5413 *) Verify that incoming data obeys the block size in
5414 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5418 [Ulf Möller, Bodo Möller]
5420 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5421 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5422 when fixing the server behaviour for backwards-compatible 'client
5423 hello' messages. (Note that the attack is impractical against
5424 SSL 3.0 and TLS 1.0 anyway because length and version checking
5425 means that the probability of guessing a valid ciphertext is
5426 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5429 Before 0.9.5, the countermeasure (hide the error by generating a
5430 random 'decryption result') did not work properly because
5431 ERR_clear_error() was missing, meaning that SSL_get_error() would
5432 detect the supposedly ignored error.
5434 Both problems are now fixed.
5437 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5438 (previously it was 1024).
5441 *) Fix for compatibility mode trust settings: ignore trust settings
5442 unless some valid trust or reject settings are present.
5445 *) Fix for blowfish EVP: its a variable length cipher.
5448 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5449 parameters in DSA public key structures and return an error in the
5450 DSA routines if parameters are absent.
5453 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5454 in the current directory if neither $RANDFILE nor $HOME was set.
5455 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5456 caused some confusion to Windows users who haven't defined $HOME.
5457 Thus RAND_file_name() is changed again: e_os.h can define a
5458 DEFAULT_HOME, which will be used if $HOME is not set.
5459 For Windows, we use "C:"; on other platforms, we still require
5460 environment variables.
5462 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5463 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5464 having multiple threads call RAND_poll() concurrently.
5467 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5468 combination of a flag and a thread ID variable.
5469 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5470 flag), *other* threads can enter ssleay_add_bytes without obeying
5471 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5472 that they do not hold after the first thread unsets add_do_not_lock).
5475 *) Change bctest again: '-x' expressions are not available in all
5479 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5481 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5482 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5484 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5485 the default extension for executables, if any. Also, make the perl
5486 scripts that use symlink() to test if it really exists and use "cp"
5487 if it doesn't. All this made OpenSSL compilable and installable in
5491 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5492 If SEQUENCE is length is indefinite just set c->slen to the total
5493 amount of data available.
5494 [Steve Henson, reported by shige@FreeBSD.org]
5495 [This change does not apply to 0.9.7.]
5497 *) Change bctest to avoid here-documents inside command substitution
5498 (workaround for FreeBSD /bin/sh bug).
5499 For compatibility with Ultrix, avoid shell functions (introduced
5500 in the bctest version that searches along $PATH).
5503 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5504 with des_encrypt() defined on some operating systems, like Solaris
5508 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5509 On the Importance of Eliminating Errors in Cryptographic
5510 Computations, J. Cryptology 14 (2001) 2, 101-119,
5511 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5514 *) MIPS assembler BIGNUM division bug fix.
5517 *) Disabled incorrect Alpha assembler code.
5520 *) Fix PKCS#7 decode routines so they correctly update the length
5521 after reading an EOC for the EXPLICIT tag.
5523 [This change does not apply to 0.9.7.]
5525 *) Fix bug in PKCS#12 key generation routines. This was triggered
5526 if a 3DES key was generated with a 0 initial byte. Include
5527 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5528 (but broken) behaviour.
5531 *) Enhance bctest to search for a working bc along $PATH and print
5533 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5535 *) Fix memory leaks in err.c: free err_data string if necessary;
5536 don't write to the wrong index in ERR_set_error_data.
5539 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5543 *) Replace rdtsc with _emit statements for VC++ version 5.
5544 [Jeremy Cooper <jeremy@baymoo.org>]
5546 *) Make it possible to reuse SSLv2 sessions.
5549 *) In copy_email() check for >= 0 as a return value for
5550 X509_NAME_get_index_by_NID() since 0 is a valid index.
5551 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5553 *) Avoid coredump with unsupported or invalid public keys by checking if
5554 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5555 PKCS7_verify() fails with non detached data.
5558 *) Don't use getenv in library functions when run as setuid/setgid.
5559 New function OPENSSL_issetugid().
5562 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5563 due to incorrect handling of multi-threading:
5565 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5567 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5569 3. Count how many times MemCheck_off() has been called so that
5570 nested use can be treated correctly. This also avoids
5571 inband-signalling in the previous code (which relied on the
5572 assumption that thread ID 0 is impossible).
5575 *) Add "-rand" option also to s_client and s_server.
5578 *) Fix CPU detection on Irix 6.x.
5579 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5580 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5582 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5585 [This change does not apply to 0.9.7.]
5587 *) Use the cached encoding of an X509_NAME structure rather than
5588 copying it. This is apparently the reason for the libsafe "errors"
5589 but the code is actually correct.
5592 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5593 Bleichenbacher's DSA attack.
5594 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5595 to be set and top=0 forces the highest bit to be set; top=-1 is new
5596 and leaves the highest bit random.
5597 [Ulf Moeller, Bodo Moeller]
5599 *) In the NCONF_...-based implementations for CONF_... queries
5600 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5601 a temporary CONF structure with the data component set to NULL
5602 (which gives segmentation faults in lh_retrieve).
5603 Instead, use NULL for the CONF pointer in CONF_get_string and
5604 CONF_get_number (which may use environment variables) and directly
5605 return NULL from CONF_get_section.
5608 *) Fix potential buffer overrun for EBCDIC.
5611 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5612 keyUsage if basicConstraints absent for a CA.
5615 *) Make SMIME_write_PKCS7() write mail header values with a format that
5616 is more generally accepted (no spaces before the semicolon), since
5617 some programs can't parse those values properly otherwise. Also make
5618 sure BIO's that break lines after each write do not create invalid
5622 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5623 macros previously used would not encode an empty SEQUENCE OF
5624 and break the signature.
5626 [This change does not apply to 0.9.7.]
5628 *) Zero the premaster secret after deriving the master secret in
5632 *) Add some EVP_add_digest_alias registrations (as found in
5633 OpenSSL_add_all_digests()) to SSL_library_init()
5634 aka OpenSSL_add_ssl_algorithms(). This provides improved
5635 compatibility with peers using X.509 certificates
5636 with unconventional AlgorithmIdentifier OIDs.
5639 *) Fix for Irix with NO_ASM.
5640 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5642 *) ./config script fixes.
5643 [Ulf Moeller, Richard Levitte]
5645 *) Fix 'openssl passwd -1'.
5648 *) Change PKCS12_key_gen_asc() so it can cope with non null
5649 terminated strings whose length is passed in the passlen
5650 parameter, for example from PEM callbacks. This was done
5651 by adding an extra length parameter to asc2uni().
5652 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5654 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5655 call failed, free the DSA structure.
5658 *) Fix to uni2asc() to cope with zero length Unicode strings.
5659 These are present in some PKCS#12 files.
5662 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5663 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5664 when writing a 32767 byte record.
5665 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5667 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5668 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5670 (RSA objects have a reference count access to which is protected
5671 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5672 so they are meant to be shared between threads.)
5673 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5674 "Reddie, Steven" <Steven.Reddie@ca.com>]
5676 *) Fix a deadlock in CRYPTO_mem_leaks().
5679 *) Use better test patterns in bntest.
5682 *) rand_win.c fix for Borland C.
5685 *) BN_rshift bugfix for n == 0.
5688 *) Add a 'bctest' script that checks for some known 'bc' bugs
5689 so that 'make test' does not abort just because 'bc' is broken.
5692 *) Store verify_result within SSL_SESSION also for client side to
5693 avoid potential security hole. (Re-used sessions on the client side
5694 always resulted in verify_result==X509_V_OK, not using the original
5695 result of the server certificate verification.)
5698 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5699 SSL3_RT_APPLICATION_DATA, return 0.
5700 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5704 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5705 releases, have been re-implemented by renaming the previous
5706 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5707 and ssl3_read_internal, respectively, and adding 'peek' parameters
5708 to them. The new ssl[23]_{read,peek} functions are calls to
5709 ssl[23]_read_internal with the 'peek' flag set appropriately.
5710 A 'peek' parameter has also been added to ssl3_read_bytes, which
5711 does the actual work for ssl3_read_internal.
5714 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5715 the method-specific "init()" handler. Also clean up ex_data after
5716 calling the method-specific "finish()" handler. Previously, this was
5717 happening the other way round.
5720 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5721 The previous value, 12, was not always sufficient for BN_mod_exp().
5724 *) Make sure that shared libraries get the internal name engine with
5725 the full version number and not just 0. This should mark the
5726 shared libraries as not backward compatible. Of course, this should
5727 be changed again when we can guarantee backward binary compatibility.
5730 *) Fix typo in get_cert_by_subject() in by_dir.c
5731 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5733 *) Rework the system to generate shared libraries:
5735 - Make note of the expected extension for the shared libraries and
5736 if there is a need for symbolic links from for example libcrypto.so.0
5737 to libcrypto.so.0.9.7. There is extended info in Configure for
5740 - Make as few rebuilds of the shared libraries as possible.
5742 - Still avoid linking the OpenSSL programs with the shared libraries.
5744 - When installing, install the shared libraries separately from the
5748 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5750 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5751 and not in SSL_clear because the latter is also used by the
5752 accept/connect functions; previously, the settings made by
5753 SSL_set_read_ahead would be lost during the handshake.
5754 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5756 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5757 Previously, it would create entries for disableed algorithms no
5761 *) Added several new manual pages for SSL_* function.
5764 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5766 *) In ssl23_get_client_hello, generate an error message when faced
5767 with an initial SSL 3.0/TLS record that is too small to contain the
5768 first two bytes of the ClientHello message, i.e. client_version.
5769 (Note that this is a pathologic case that probably has never happened
5770 in real life.) The previous approach was to use the version number
5771 from the record header as a substitute; but our protocol choice
5772 should not depend on that one because it is not authenticated
5773 by the Finished messages.
5776 *) More robust randomness gathering functions for Windows.
5777 [Jeffrey Altman <jaltman@columbia.edu>]
5779 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5780 not set then we don't setup the error code for issuer check errors
5781 to avoid possibly overwriting other errors which the callback does
5782 handle. If an application does set the flag then we assume it knows
5783 what it is doing and can handle the new informational codes
5787 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5788 a general "ANY" type, as such it should be able to decode anything
5789 including tagged types. However it didn't check the class so it would
5790 wrongly interpret tagged types in the same way as their universal
5791 counterpart and unknown types were just rejected. Changed so that the
5792 tagged and unknown types are handled in the same way as a SEQUENCE:
5793 that is the encoding is stored intact. There is also a new type
5794 "V_ASN1_OTHER" which is used when the class is not universal, in this
5795 case we have no idea what the actual type is so we just lump them all
5799 *) On VMS, stdout may very well lead to a file that is written to
5800 in a record-oriented fashion. That means that every write() will
5801 write a separate record, which will be read separately by the
5802 programs trying to read from it. This can be very confusing.
5804 The solution is to put a BIO filter in the way that will buffer
5805 text until a linefeed is reached, and then write everything a
5806 line at a time, so every record written will be an actual line,
5807 not chunks of lines and not (usually doesn't happen, but I've
5808 seen it once) several lines in one record. BIO_f_linebuffer() is
5811 Currently, it's a VMS-only method, because that's where it has
5812 been tested well enough.
5815 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5816 it can return incorrect results.
5817 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5818 but it was in 0.9.6-beta[12].)
5821 *) Disable the check for content being present when verifying detached
5822 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5823 include zero length content when signing messages.
5826 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5827 BIO_ctrl (for BIO pairs).
5830 *) Add DSO method for VMS.
5833 *) Bug fix: Montgomery multiplication could produce results with the
5837 *) Add RPM specification openssl.spec and modify it to build three
5838 packages. The default package contains applications, application
5839 documentation and run-time libraries. The devel package contains
5840 include files, static libraries and function documentation. The
5841 doc package contains the contents of the doc directory. The original
5842 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5845 *) Add a large number of documentation files for many SSL routines.
5846 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5848 *) Add a configuration entry for Sony News 4.
5849 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5851 *) Don't set the two most significant bits to one when generating a
5852 random number < q in the DSA library.
5855 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5856 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5857 the underlying transport is blocking) if a handshake took place.
5858 (The default behaviour is needed by applications such as s_client
5859 and s_server that use select() to determine when to use SSL_read;
5860 but for applications that know in advance when to expect data, it
5861 just makes things more complicated.)
5864 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5868 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5869 work better on such systems.
5870 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5872 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5873 Update PKCS12_parse() so it copies the friendlyName and the
5874 keyid to the certificates aux info.
5877 *) Fix bug in PKCS7_verify() which caused an infinite loop
5878 if there was more than one signature.
5879 [Sven Uszpelkat <su@celocom.de>]
5881 *) Major change in util/mkdef.pl to include extra information
5882 about each symbol, as well as presentig variables as well
5883 as functions. This change means that there's n more need
5884 to rebuild the .num files when some algorithms are excluded.
5887 *) Allow the verify time to be set by an application,
5888 rather than always using the current time.
5891 *) Phase 2 verify code reorganisation. The certificate
5892 verify code now looks up an issuer certificate by a
5893 number of criteria: subject name, authority key id
5894 and key usage. It also verifies self signed certificates
5895 by the same criteria. The main comparison function is
5896 X509_check_issued() which performs these checks.
5898 Lot of changes were necessary in order to support this
5899 without completely rewriting the lookup code.
5901 Authority and subject key identifier are now cached.
5903 The LHASH 'certs' is X509_STORE has now been replaced
5904 by a STACK_OF(X509_OBJECT). This is mainly because an
5905 LHASH can't store or retrieve multiple objects with
5906 the same hash value.
5908 As a result various functions (which were all internal
5909 use only) have changed to handle the new X509_STORE
5910 structure. This will break anything that messed round
5911 with X509_STORE internally.
5913 The functions X509_STORE_add_cert() now checks for an
5914 exact match, rather than just subject name.
5916 The X509_STORE API doesn't directly support the retrieval
5917 of multiple certificates matching a given criteria, however
5918 this can be worked round by performing a lookup first
5919 (which will fill the cache with candidate certificates)
5920 and then examining the cache for matches. This is probably
5921 the best we can do without throwing out X509_LOOKUP
5922 entirely (maybe later...).
5924 The X509_VERIFY_CTX structure has been enhanced considerably.
5926 All certificate lookup operations now go via a get_issuer()
5927 callback. Although this currently uses an X509_STORE it
5928 can be replaced by custom lookups. This is a simple way
5929 to bypass the X509_STORE hackery necessary to make this
5930 work and makes it possible to use more efficient techniques
5931 in future. A very simple version which uses a simple
5932 STACK for its trusted certificate store is also provided
5933 using X509_STORE_CTX_trusted_stack().
5935 The verify_cb() and verify() callbacks now have equivalents
5936 in the X509_STORE_CTX structure.
5938 X509_STORE_CTX also has a 'flags' field which can be used
5939 to customise the verify behaviour.
5942 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5943 excludes S/MIME capabilities.
5946 *) When a certificate request is read in keep a copy of the
5947 original encoding of the signed data and use it when outputing
5948 again. Signatures then use the original encoding rather than
5949 a decoded, encoded version which may cause problems if the
5950 request is improperly encoded.
5953 *) For consistency with other BIO_puts implementations, call
5954 buffer_write(b, ...) directly in buffer_puts instead of calling
5957 In BIO_puts, increment b->num_write as in BIO_write.
5958 [Peter.Sylvester@EdelWeb.fr]
5960 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5961 BN_zero, we may not return a BIGNUM with an array consisting of
5965 *) Avoid calling abort() from within the library when problems are
5966 detected, except if preprocessor symbols have been defined
5967 (such as REF_CHECK, BN_DEBUG etc.).
5970 *) New openssl application 'rsautl'. This utility can be
5971 used for low level RSA operations. DER public key
5972 BIO/fp routines also added.
5975 *) New Configure entry and patches for compiling on QNX 4.
5976 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5978 *) A demo state-machine implementation was sponsored by
5979 Nuron (http://www.nuron.com/) and is now available in
5980 demos/state_machine.
5983 *) New options added to the 'dgst' utility for signature
5984 generation and verification.
5987 *) Unrecognized PKCS#7 content types are now handled via a
5988 catch all ASN1_TYPE structure. This allows unsupported
5989 types to be stored as a "blob" and an application can
5990 encode and decode it manually.
5993 *) Fix various signed/unsigned issues to make a_strex.c
5995 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5997 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5998 length if passed a buffer. ASN1_INTEGER_to_BN failed
5999 if passed a NULL BN and its argument was negative.
6000 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6002 *) Modification to PKCS#7 encoding routines to output definite
6003 length encoding. Since currently the whole structures are in
6004 memory there's not real point in using indefinite length
6005 constructed encoding. However if OpenSSL is compiled with
6006 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6009 *) Added BIO_vprintf() and BIO_vsnprintf().
6012 *) Added more prefixes to parse for in the the strings written
6013 through a logging bio, to cover all the levels that are available
6014 through syslog. The prefixes are now:
6016 PANIC, EMERG, EMR => LOG_EMERG
6017 ALERT, ALR => LOG_ALERT
6018 CRIT, CRI => LOG_CRIT
6019 ERROR, ERR => LOG_ERR
6020 WARNING, WARN, WAR => LOG_WARNING
6021 NOTICE, NOTE, NOT => LOG_NOTICE
6022 INFO, INF => LOG_INFO
6023 DEBUG, DBG => LOG_DEBUG
6025 and as before, if none of those prefixes are present at the
6026 beginning of the string, LOG_ERR is chosen.
6028 On Win32, the LOG_* levels are mapped according to this:
6030 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6031 LOG_WARNING => EVENTLOG_WARNING_TYPE
6032 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6036 *) Made it possible to reconfigure with just the configuration
6037 argument "reconf" or "reconfigure". The command line arguments
6038 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6039 and are retrieved from there when reconfiguring.
6043 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6045 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6048 *) The obj_dat.pl script was messing up the sorting of object
6049 names. The reason was that it compared the quoted version
6050 of strings as a result "OCSP" > "OCSP Signing" because
6051 " > SPACE. Changed script to store unquoted versions of
6052 names and add quotes on output. It was also omitting some
6053 names from the lookup table if they were given a default
6054 value (that is if SN is missing it is given the same
6055 value as LN and vice versa), these are now added on the
6056 grounds that if an object has a name we should be able to
6057 look it up. Finally added warning output when duplicate
6058 short or long names are found.
6061 *) Changes needed for Tandem NSK.
6062 [Scott Uroff <scott@xypro.com>]
6064 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6065 RSA_padding_check_SSLv23(), special padding was never detected
6066 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6067 version rollback attacks was not effective.
6069 In s23_clnt.c, don't use special rollback-attack detection padding
6070 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6071 client; similarly, in s23_srvr.c, don't do the rollback check if
6072 SSL 2.0 is the only protocol enabled in the server.
6075 *) Make it possible to get hexdumps of unprintable data with 'openssl
6076 asn1parse'. By implication, the functions ASN1_parse_dump() and
6077 BIO_dump_indent() are added.
6080 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6081 these print out strings and name structures based on various
6082 flags including RFC2253 support and proper handling of
6083 multibyte characters. Added options to the 'x509' utility
6084 to allow the various flags to be set.
6087 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6088 Also change the functions X509_cmp_current_time() and
6089 X509_gmtime_adj() work with an ASN1_TIME structure,
6090 this will enable certificates using GeneralizedTime in validity
6091 dates to be checked.
6094 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6095 negative public key encodings) on by default,
6096 NO_NEG_PUBKEY_BUG can be set to disable it.
6099 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6100 content octets. An i2c_ASN1_OBJECT is unnecessary because
6101 the encoding can be trivially obtained from the structure.
6104 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6105 not read locks (CRYPTO_r_[un]lock).
6108 *) A first attempt at creating official support for shared
6109 libraries through configuration. I've kept it so the
6110 default is static libraries only, and the OpenSSL programs
6111 are always statically linked for now, but there are
6112 preparations for dynamic linking in place.
6113 This has been tested on Linux and Tru64.
6116 *) Randomness polling function for Win9x, as described in:
6117 Peter Gutmann, Software Generation of Practically Strong
6121 *) Fix so PRNG is seeded in req if using an already existing
6125 *) New options to smime application. -inform and -outform
6126 allow alternative formats for the S/MIME message including
6127 PEM and DER. The -content option allows the content to be
6128 specified separately. This should allow things like Netscape
6129 form signing output easier to verify.
6132 *) Fix the ASN1 encoding of tags using the 'long form'.
6135 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6136 STRING types. These convert content octets to and from the
6137 underlying type. The actual tag and length octets are
6138 already assumed to have been read in and checked. These
6139 are needed because all other string types have virtually
6140 identical handling apart from the tag. By having versions
6141 of the ASN1 functions that just operate on content octets
6142 IMPLICIT tagging can be handled properly. It also allows
6143 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6144 and ASN1_INTEGER are identical apart from the tag.
6147 *) Change the handling of OID objects as follows:
6149 - New object identifiers are inserted in objects.txt, following
6150 the syntax given in objects.README.
6151 - objects.pl is used to process obj_mac.num and create a new
6153 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6156 This is currently kind of a hack, and the perl code in objects.pl
6157 isn't very elegant, but it works as I intended. The simplest way
6158 to check that it worked correctly is to look in obj_dat.h and
6159 check the array nid_objs and make sure the objects haven't moved
6160 around (this is important!). Additions are OK, as well as
6161 consistent name changes.
6164 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6167 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6168 The given file adds to whatever has already been seeded into the
6169 random pool through the RANDFILE configuration file option or
6170 environment variable, or the default random state file.
6173 *) mkstack.pl now sorts each macro group into lexical order.
6174 Previously the output order depended on the order the files
6175 appeared in the directory, resulting in needless rewriting
6179 *) Patches to make OpenSSL compile under Win32 again. Mostly
6180 work arounds for the VC++ problem that it treats func() as
6181 func(void). Also stripped out the parts of mkdef.pl that
6182 added extra typesafe functions: these no longer exist.
6185 *) Reorganisation of the stack code. The macros are now all
6186 collected in safestack.h . Each macro is defined in terms of
6187 a "stack macro" of the form SKM_<name>(type, a, b). The
6188 DEBUG_SAFESTACK is now handled in terms of function casts,
6189 this has the advantage of retaining type safety without the
6190 use of additional functions. If DEBUG_SAFESTACK is not defined
6191 then the non typesafe macros are used instead. Also modified the
6192 mkstack.pl script to handle the new form. Needs testing to see
6193 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6194 the default if no major problems. Similar behaviour for ASN1_SET_OF
6195 and PKCS12_STACK_OF.
6198 *) When some versions of IIS use the 'NET' form of private key the
6199 key derivation algorithm is different. Normally MD5(password) is
6200 used as a 128 bit RC4 key. In the modified case
6201 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6202 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6203 as the old Netscape_RSA functions except they have an additional
6204 'sgckey' parameter which uses the modified algorithm. Also added
6205 an -sgckey command line option to the rsa utility. Thanks to
6206 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6207 algorithm to openssl-dev.
6210 *) The evp_local.h macros were using 'c.##kname' which resulted in
6211 invalid expansion on some systems (SCO 5.0.5 for example).
6212 Corrected to 'c.kname'.
6213 [Phillip Porch <root@theporch.com>]
6215 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6216 a STACK of email addresses from a certificate or request, these look
6217 in the subject name and the subject alternative name extensions and
6218 omit any duplicate addresses.
6221 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6222 This makes DSA verification about 2 % faster.
6225 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6226 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6227 plus overhead for 1024 bit moduli).
6228 This makes exponentiations about 0.5 % faster for 1024 bit
6229 exponents (as measured by "openssl speed rsa2048").
6232 *) Rename memory handling macros to avoid conflicts with other
6234 Malloc => OPENSSL_malloc
6235 Malloc_locked => OPENSSL_malloc_locked
6236 Realloc => OPENSSL_realloc
6237 Free => OPENSSL_free
6240 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6241 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6244 *) CygWin32 support.
6245 [John Jarvie <jjarvie@newsguy.com>]
6247 *) The type-safe stack code has been rejigged. It is now only compiled
6248 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6249 by default all type-specific stack functions are "#define"d back to
6250 standard stack functions. This results in more streamlined output
6251 but retains the type-safety checking possibilities of the original
6255 *) The STACK code has been cleaned up, and certain type declarations
6256 that didn't make a lot of sense have been brought in line. This has
6257 also involved a cleanup of sorts in safestack.h to more correctly
6258 map type-safe stack functions onto their plain stack counterparts.
6259 This work has also resulted in a variety of "const"ifications of
6260 lots of the code, especially "_cmp" operations which should normally
6261 be prototyped with "const" parameters anyway.
6264 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6265 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6266 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6267 where all of 'md' is used each time the PRNG is used, but 'state'
6268 is used only indexed by a cyclic counter. As entropy may not be
6269 well distributed from the beginning, 'md' is important as a
6270 chaining variable. However, the output function chains only half
6271 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6272 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6273 in all of 'state' being rewritten, with the new values depending
6274 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6277 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6278 the handshake is continued after ssl_verify_cert_chain();
6279 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6280 can lead to 'unexplainable' connection aborts later.
6281 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6283 *) Major EVP API cipher revision.
6284 Add hooks for extra EVP features. This allows various cipher
6285 parameters to be set in the EVP interface. Support added for variable
6286 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6287 setting of RC2 and RC5 parameters.
6289 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6292 Remove lots of duplicated code from the EVP library. For example *every*
6293 cipher init() function handles the 'iv' in the same way according to the
6294 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6295 for CFB and OFB modes they zero ctx->num.
6297 New functionality allows removal of S/MIME code RC2 hack.
6299 Most of the routines have the same form and so can be declared in terms
6302 By shifting this to the top level EVP_CipherInit() it can be removed from
6303 all individual ciphers. If the cipher wants to handle IVs or keys
6304 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6307 Change lots of functions like EVP_EncryptUpdate() to now return a
6308 value: although software versions of the algorithms cannot fail
6309 any installed hardware versions can.
6312 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6313 this option is set, tolerate broken clients that send the negotiated
6314 protocol version number instead of the requested protocol version
6318 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6319 i.e. non-zero for export ciphersuites, zero otherwise.
6320 Previous versions had this flag inverted, inconsistent with
6321 rsa_tmp_cb (..._TMP_RSA_CB).
6322 [Bodo Moeller; problem reported by Amit Chopra]
6324 *) Add missing DSA library text string. Work around for some IIS
6325 key files with invalid SEQUENCE encoding.
6328 *) Add a document (doc/standards.txt) that list all kinds of standards
6329 and so on that are implemented in OpenSSL.
6332 *) Enhance c_rehash script. Old version would mishandle certificates
6333 with the same subject name hash and wouldn't handle CRLs at all.
6334 Added -fingerprint option to crl utility, to support new c_rehash
6338 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6341 *) Fix for SSL server purpose checking. Server checking was
6342 rejecting certificates which had extended key usage present
6343 but no ssl client purpose.
6344 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6346 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6347 is a little unclear about how a blank password is handled.
6348 Since the password in encoded as a BMPString with terminating
6349 double NULL a zero length password would end up as just the
6350 double NULL. However no password at all is different and is
6351 handled differently in the PKCS#12 key generation code. NS
6352 treats a blank password as zero length. MSIE treats it as no
6353 password on export: but it will try both on import. We now do
6354 the same: PKCS12_parse() tries zero length and no password if
6355 the password is set to "" or NULL (NULL is now a valid password:
6356 it wasn't before) as does the pkcs12 application.
6359 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6360 perror when PEM_read_bio_X509_REQ fails, the error message must
6361 be obtained from the error queue.
6364 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6365 it in ERR_remove_state if appropriate, and change ERR_get_state
6366 accordingly to avoid race conditions (this is necessary because
6367 thread_hash is no longer constant once set).
6370 *) Bugfix for linux-elf makefile.one.
6373 *) RSA_get_default_method() will now cause a default
6374 RSA_METHOD to be chosen if one doesn't exist already.
6375 Previously this was only set during a call to RSA_new()
6376 or RSA_new_method(NULL) meaning it was possible for
6377 RSA_get_default_method() to return NULL.
6380 *) Added native name translation to the existing DSO code
6381 that will convert (if the flag to do so is set) filenames
6382 that are sufficiently small and have no path information
6383 into a canonical native form. Eg. "blah" converted to
6384 "libblah.so" or "blah.dll" etc.
6387 *) New function ERR_error_string_n(e, buf, len) which is like
6388 ERR_error_string(e, buf), but writes at most 'len' bytes
6389 including the 0 terminator. For ERR_error_string_n, 'buf'
6391 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6393 *) CONF library reworked to become more general. A new CONF
6394 configuration file reader "class" is implemented as well as a
6395 new functions (NCONF_*, for "New CONF") to handle it. The now
6396 old CONF_* functions are still there, but are reimplemented to
6397 work in terms of the new functions. Also, a set of functions
6398 to handle the internal storage of the configuration data is
6399 provided to make it easier to write new configuration file
6400 reader "classes" (I can definitely see something reading a
6401 configuration file in XML format, for example), called _CONF_*,
6402 or "the configuration storage API"...
6404 The new configuration file reading functions are:
6406 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6407 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6409 NCONF_default, NCONF_WIN32
6411 NCONF_dump_fp, NCONF_dump_bio
6413 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6414 NCONF_new creates a new CONF object. This works in the same way
6415 as other interfaces in OpenSSL, like the BIO interface.
6416 NCONF_dump_* dump the internal storage of the configuration file,
6417 which is useful for debugging. All other functions take the same
6418 arguments as the old CONF_* functions wth the exception of the
6419 first that must be a `CONF *' instead of a `LHASH *'.
6421 To make it easer to use the new classes with the old CONF_* functions,
6422 the function CONF_set_default_method is provided.
6425 *) Add '-tls1' option to 'openssl ciphers', which was already
6426 mentioned in the documentation but had not been implemented.
6427 (This option is not yet really useful because even the additional
6428 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6431 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6432 OpenSSL-based applications) load shared libraries and bind to
6433 them in a portable way.
6434 [Geoff Thorpe, with contributions from Richard Levitte]
6436 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6438 *) Make sure _lrotl and _lrotr are only used with MSVC.
6440 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6441 (the default implementation of RAND_status).
6443 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6444 to '-clrext' (= clear extensions), as intended and documented.
6445 [Bodo Moeller; inconsistency pointed out by Michael Attili
6448 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6449 was larger than the MD block size.
6450 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6452 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6453 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6454 using the passed key: if the passed key was a private key the result
6455 of X509_print(), for example, would be to print out all the private key
6459 *) des_quad_cksum() byte order bug fix.
6460 [Ulf Möller, using the problem description in krb4-0.9.7, where
6461 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6463 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6465 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6467 *) For easily testing in shell scripts whether some command
6468 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6469 returns with exit code 0 iff no command of the given name is available.
6470 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6471 the output goes to stdout and nothing is printed to stderr.
6472 Additional arguments are always ignored.
6474 Since for each cipher there is a command of the same name,
6475 the 'no-cipher' compilation switches can be tested this way.
6477 ('openssl no-XXX' is not able to detect pseudo-commands such
6478 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6481 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6484 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6485 is set; it will be thrown away anyway because each handshake creates
6487 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6488 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6489 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6490 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6493 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6494 'Q' and 'R' lose their special meanings (quit/renegotiate).
6495 This is part of what -quiet does; unlike -quiet, -ign_eof
6496 does not suppress any output.
6499 *) Add compatibility options to the purpose and trust code. The
6500 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6501 accepts a certificate or CA, this was the previous behaviour,
6502 with all the associated security issues.
6504 X509_TRUST_COMPAT is the old trust behaviour: only and
6505 automatically trust self signed roots in certificate store. A
6506 new trust setting X509_TRUST_DEFAULT is used to specify that
6507 a purpose has no associated trust setting and it should instead
6508 use the value in the default purpose.
6511 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6512 and fix a memory leak.
6515 *) In util/mkerr.pl (which implements 'make errors'), preserve
6516 reason strings from the previous version of the .c file, as
6517 the default to have only downcase letters (and digits) in
6518 automatically generated reasons codes is not always appropriate.
6521 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6522 using strerror. Previously, ERR_reason_error_string() returned
6523 library names as reason strings for SYSerr; but SYSerr is a special
6524 case where small numbers are errno values, not library numbers.
6527 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6528 converts DSA parameters into DH parameters. (When creating parameters,
6529 DSA_generate_parameters is used.)
6532 *) Include 'length' (recommended exponent length) in C code generated
6533 by 'openssl dhparam -C'.
6536 *) The second argument to set_label in perlasm was already being used
6537 so couldn't be used as a "file scope" flag. Moved to third argument
6541 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6542 instead of RAND_bytes for encryption IVs and salts.
6545 *) Include RAND_status() into RAND_METHOD instead of implementing
6546 it only for md_rand.c Otherwise replacing the PRNG by calling
6547 RAND_set_rand_method would be impossible.
6550 *) Don't let DSA_generate_key() enter an infinite loop if the random
6551 number generation fails.
6554 *) New 'rand' application for creating pseudo-random output.
6557 *) Added configuration support for Linux/IA64
6558 [Rolf Haberrecker <rolf@suse.de>]
6560 *) Assembler module support for Mingw32.
6563 *) Shared library support for HPUX (in shlib/).
6564 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6566 *) Shared library support for Solaris gcc.
6567 [Lutz Behnke <behnke@trustcenter.de>]
6569 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6571 *) PKCS7_encrypt() was adding text MIME headers twice because they
6572 were added manually and by SMIME_crlf_copy().
6575 *) In bntest.c don't call BN_rand with zero bits argument.
6576 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6578 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6579 case was implemented. This caused BN_div_recp() to fail occasionally.
6582 *) Add an optional second argument to the set_label() in the perl
6583 assembly language builder. If this argument exists and is set
6584 to 1 it signals that the assembler should use a symbol whose
6585 scope is the entire file, not just the current function. This
6586 is needed with MASM which uses the format label:: for this scope.
6587 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6589 *) Change the ASN1 types so they are typedefs by default. Before
6590 almost all types were #define'd to ASN1_STRING which was causing
6591 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6595 *) Change names of new functions to the new get1/get0 naming
6596 convention: After 'get1', the caller owns a reference count
6597 and has to call ..._free; 'get0' returns a pointer to some
6598 data structure without incrementing reference counters.
6599 (Some of the existing 'get' functions increment a reference
6600 counter, some don't.)
6601 Similarly, 'set1' and 'add1' functions increase reference
6602 counters or duplicate objects.
6605 *) Allow for the possibility of temp RSA key generation failure:
6606 the code used to assume it always worked and crashed on failure.
6609 *) Fix potential buffer overrun problem in BIO_printf().
6610 [Ulf Möller, using public domain code by Patrick Powell; problem
6611 pointed out by David Sacerdote <das33@cornell.edu>]
6613 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6614 RAND_egd() and RAND_status(). In the command line application,
6615 the EGD socket can be specified like a seed file using RANDFILE
6619 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6620 Some CAs (e.g. Verisign) distribute certificates in this form.
6623 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6624 list to exclude them. This means that no special compilation option
6625 is needed to use anonymous DH: it just needs to be included in the
6629 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6630 EVP_MD_type. The old functionality is available in a new macro called
6631 EVP_MD_md(). Change code that uses it and update docs.
6634 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6635 where the 'void *' argument is replaced by a function pointer argument.
6636 Previously 'void *' was abused to point to functions, which works on
6637 many platforms, but is not correct. As these functions are usually
6638 called by macros defined in OpenSSL header files, most source code
6639 should work without changes.
6642 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6643 sections with information on -D... compiler switches used for
6644 compiling the library so that applications can see them. To enable
6645 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6646 must be defined. E.g.,
6647 #define OPENSSL_ALGORITHM_DEFINES
6648 #include <openssl/opensslconf.h>
6649 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6650 [Richard Levitte, Ulf and Bodo Möller]
6652 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6656 *) Change the 'other' type in certificate aux info to a STACK_OF
6657 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6658 the required ASN1 format: arbitrary types determined by an OID.
6661 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6662 argument to 'req'. This is not because the function is newer or
6663 better than others it just uses the work 'NEW' in the certificate
6664 request header lines. Some software needs this.
6667 *) Reorganise password command line arguments: now passwords can be
6668 obtained from various sources. Delete the PEM_cb function and make
6669 it the default behaviour: i.e. if the callback is NULL and the
6670 usrdata argument is not NULL interpret it as a null terminated pass
6671 phrase. If usrdata and the callback are NULL then the pass phrase
6672 is prompted for as usual.
6675 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6676 the support is automatically enabled. The resulting binaries will
6677 autodetect the card and use it if present.
6678 [Ben Laurie and Compaq Inc.]
6680 *) Work around for Netscape hang bug. This sends certificate request
6681 and server done in one record. Since this is perfectly legal in the
6682 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6683 the bugs/SSLv3 entry for more info.
6686 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6689 *) Add -rand argument to smime and pkcs12 applications and read/write
6693 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6696 *) Add command line password options to the remaining applications.
6699 *) Bug fix for BN_div_recp() for numerators with an even number of
6703 *) More tests in bntest.c, and changed test_bn output.
6706 *) ./config recognizes MacOS X now.
6709 *) Bug fix for BN_div() when the first words of num and divsor are
6710 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6713 *) Add support for various broken PKCS#8 formats, and command line
6714 options to produce them.
6717 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6718 get temporary BIGNUMs from a BN_CTX.
6721 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6725 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6726 include a #define from the old name to the new. The original intent
6727 was that statically linked binaries could for example just call
6728 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6729 link with digests. This never worked becayse SSLeay_add_all_digests()
6730 and SSLeay_add_all_ciphers() were in the same source file so calling
6731 one would link with the other. They are now in separate source files.
6734 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6737 *) Use a less unusual form of the Miller-Rabin primality test (it used
6738 a binary algorithm for exponentiation integrated into the Miller-Rabin
6739 loop, our standard modexp algorithms are faster).
6742 *) Support for the EBCDIC character set completed.
6743 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6745 *) Source code cleanups: use const where appropriate, eliminate casts,
6746 use void * instead of char * in lhash.
6749 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6750 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6751 this the server could overwrite ephemeral keys that the client
6755 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6756 using 50 iterations of the Rabin-Miller test.
6758 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6759 iterations of the Rabin-Miller test as required by the appendix
6760 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6761 As BN_is_prime_fasttest includes trial division, DSA parameter
6762 generation becomes much faster.
6764 This implies a change for the callback functions in DSA_is_prime
6765 and DSA_generate_parameters: The callback function is called once
6766 for each positive witness in the Rabin-Miller test, not just
6767 occasionally in the inner loop; and the parameters to the
6768 callback function now provide an iteration count for the outer
6769 loop rather than for the current invocation of the inner loop.
6770 DSA_generate_parameters additionally can call the callback
6771 function with an 'iteration count' of -1, meaning that a
6772 candidate has passed the trial division test (when q is generated
6773 from an application-provided seed, trial division is skipped).
6776 *) New function BN_is_prime_fasttest that optionally does trial
6777 division before starting the Rabin-Miller test and has
6778 an additional BN_CTX * argument (whereas BN_is_prime always
6779 has to allocate at least one BN_CTX).
6780 'callback(1, -1, cb_arg)' is called when a number has passed the
6781 trial division stage.
6784 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6788 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6791 *) New function BN_pseudo_rand().
6794 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6795 bignum version of BN_from_montgomery() with the working code from
6796 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6800 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6801 made it impossible to use the same SSL_SESSION data structure in
6802 SSL2 clients in multiple threads.
6805 *) The return value of RAND_load_file() no longer counts bytes obtained
6806 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6807 to seed the PRNG (previously an explicit byte count was required).
6808 [Ulf Möller, Bodo Möller]
6810 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6811 used (char *) instead of (void *) and had casts all over the place.
6814 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6817 *) Retain source code compatibility for BN_prime_checks macro:
6818 BN_is_prime(..., BN_prime_checks, ...) now uses
6819 BN_prime_checks_for_size to determine the appropriate number of
6820 Rabin-Miller iterations.
6823 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6824 DH_CHECK_P_NOT_SAFE_PRIME.
6825 (Check if this is true? OpenPGP calls them "strong".)
6828 *) Merge the functionality of "dh" and "gendh" programs into a new program
6829 "dhparam". The old programs are retained for now but will handle DH keys
6830 (instead of parameters) in future.
6833 *) Make the ciphers, s_server and s_client programs check the return values
6834 when a new cipher list is set.
6837 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6838 ciphers. Before when the 56bit ciphers were enabled the sorting was
6841 The syntax for the cipher sorting has been extended to support sorting by
6842 cipher-strength (using the strength_bits hard coded in the tables).
6843 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6845 Fix a bug in the cipher-command parser: when supplying a cipher command
6846 string with an "undefined" symbol (neither command nor alphanumeric
6847 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6848 an error is flagged.
6850 Due to the strength-sorting extension, the code of the
6851 ssl_create_cipher_list() function was completely rearranged. I hope that
6852 the readability was also increased :-)
6853 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6855 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6856 for the first serial number and places 2 in the serial number file. This
6857 avoids problems when the root CA is created with serial number zero and
6858 the first user certificate has the same issuer name and serial number
6862 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6863 the new code. Add documentation for this stuff.
6866 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6867 X509_*() to X509at_*() on the grounds that they don't handle X509
6868 structures and behave in an analagous way to the X509v3 functions:
6869 they shouldn't be called directly but wrapper functions should be used
6872 So we also now have some wrapper functions that call the X509at functions
6873 when passed certificate requests. (TO DO: similar things can be done with
6874 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6875 things. Some of these need some d2i or i2d and print functionality
6876 because they handle more complex structures.)
6879 *) Add missing #ifndefs that caused missing symbols when building libssl
6880 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6881 NO_RSA in ssl/s2*.c.
6882 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6884 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6885 has a return value which indicates the quality of the random data
6886 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6887 error queue. New function RAND_pseudo_bytes() generates output that is
6888 guaranteed to be unique but not unpredictable. RAND_add is like
6889 RAND_seed, but takes an extra argument for an entropy estimate
6890 (RAND_seed always assumes full entropy).
6893 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6894 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6895 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6896 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6897 false-positive rate of at most 2^-80 for random input.
6900 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6903 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6904 in the 0.9.5 release), this returns the chain
6905 from an X509_CTX structure with a dup of the stack and all
6906 the X509 reference counts upped: so the stack will exist
6907 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6910 Also make SSL_SESSION_print() print out the verify return
6914 *) Add manpage for the pkcs12 command. Also change the default
6915 behaviour so MAC iteration counts are used unless the new
6916 -nomaciter option is used. This improves file security and
6917 only older versions of MSIE (4.0 for example) need it.
6920 *) Honor the no-xxx Configure options when creating .DEF files.
6923 *) Add PKCS#10 attributes to field table: challengePassword,
6924 unstructuredName and unstructuredAddress. These are taken from
6925 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6926 international characters are used.
6928 More changes to X509_ATTRIBUTE code: allow the setting of types
6929 based on strings. Remove the 'loc' parameter when adding
6930 attributes because these will be a SET OF encoding which is sorted
6934 *) Initial changes to the 'req' utility to allow request generation
6935 automation. This will allow an application to just generate a template
6936 file containing all the field values and have req construct the
6939 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6940 used all over the place including certificate requests and PKCS#7
6941 structures. They are currently handled manually where necessary with
6942 some primitive wrappers for PKCS#7. The new functions behave in a
6943 manner analogous to the X509 extension functions: they allow
6944 attributes to be looked up by NID and added.
6946 Later something similar to the X509V3 code would be desirable to
6947 automatically handle the encoding, decoding and printing of the
6948 more complex types. The string types like challengePassword can
6949 be handled by the string table functions.
6951 Also modified the multi byte string table handling. Now there is
6952 a 'global mask' which masks out certain types. The table itself
6953 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6954 is useful when for example there is only one permissible type
6955 (as in countryName) and using the mask might result in no valid
6959 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6960 SSL_get_peer_finished to allow applications to obtain the latest
6961 Finished messages sent to the peer or expected from the peer,
6962 respectively. (SSL_get_peer_finished is usually the Finished message
6963 actually received from the peer, otherwise the protocol will be aborted.)
6965 As the Finished message are message digests of the complete handshake
6966 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6967 be used for external authentication procedures when the authentication
6968 provided by SSL/TLS is not desired or is not enough.
6971 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6972 the host supports BWX extension and if Compaq C is present on the
6973 $PATH. Just exploiting of the BWX extension results in 20-30%
6974 performance kick for some algorithms, e.g. DES and RC4 to mention
6975 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6979 *) Add support for MS "fast SGC". This is arguably a violation of the
6980 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6981 weak crypto and after checking the certificate is SGC a second one
6982 with strong crypto. MS SGC stops the first handshake after receiving
6983 the server certificate message and sends a second client hello. Since
6984 a server will typically do all the time consuming operations before
6985 expecting any further messages from the client (server key exchange
6986 is the most expensive) there is little difference between the two.
6988 To get OpenSSL to support MS SGC we have to permit a second client
6989 hello message after we have sent server done. In addition we have to
6990 reset the MAC if we do get this second client hello.
6993 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6994 if a DER encoded private key is RSA or DSA traditional format. Changed
6995 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6996 format DER encoded private key. Newer code should use PKCS#8 format which
6997 has the key type encoded in the ASN1 structure. Added DER private key
6998 support to pkcs8 application.
7001 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7002 ciphersuites has been selected (as required by the SSL 3/TLS 1
7003 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7004 is set, we interpret this as a request to violate the specification
7005 (the worst that can happen is a handshake failure, and 'correct'
7006 behaviour would result in a handshake failure anyway).
7009 *) In SSL_CTX_add_session, take into account that there might be multiple
7010 SSL_SESSION structures with the same session ID (e.g. when two threads
7011 concurrently obtain them from an external cache).
7012 The internal cache can handle only one SSL_SESSION with a given ID,
7013 so if there's a conflict, we now throw out the old one to achieve
7017 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7018 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7019 some routines that use cipher OIDs: some ciphers do not have OIDs
7020 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7024 *) Simplify the trust setting structure and code. Now we just have
7025 two sequences of OIDs for trusted and rejected settings. These will
7026 typically have values the same as the extended key usage extension
7027 and any application specific purposes.
7029 The trust checking code now has a default behaviour: it will just
7030 check for an object with the same NID as the passed id. Functions can
7031 be provided to override either the default behaviour or the behaviour
7032 for a given id. SSL client, server and email already have functions
7033 in place for compatibility: they check the NID and also return "trusted"
7034 if the certificate is self signed.
7037 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7038 traditional format into an EVP_PKEY structure.
7041 *) Add a password callback function PEM_cb() which either prompts for
7042 a password if usr_data is NULL or otherwise assumes it is a null
7043 terminated password. Allow passwords to be passed on command line
7044 environment or config files in a few more utilities.
7047 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7048 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7049 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7050 Update documentation.
7053 *) Support for ASN1 "NULL" type. This could be handled before by using
7054 ASN1_TYPE but there wasn't any function that would try to read a NULL
7055 and produce an error if it couldn't. For compatibility we also have
7056 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7057 don't allocate anything because they don't need to.
7060 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7062 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7064 *) Rebuild of the memory allocation routines used by OpenSSL code and
7065 possibly others as well. The purpose is to make an interface that
7066 provide hooks so anyone can build a separate set of allocation and
7067 deallocation routines to be used by OpenSSL, for example memory
7068 pool implementations, or something else, which was previously hard
7069 since Malloc(), Realloc() and Free() were defined as macros having
7070 the values malloc, realloc and free, respectively (except for Win32
7071 compilations). The same is provided for memory debugging code.
7072 OpenSSL already comes with functionality to find memory leaks, but
7073 this gives people a chance to debug other memory problems.
7075 With these changes, a new set of functions and macros have appeared:
7077 CRYPTO_set_mem_debug_functions() [F]
7078 CRYPTO_get_mem_debug_functions() [F]
7079 CRYPTO_dbg_set_options() [F]
7080 CRYPTO_dbg_get_options() [F]
7081 CRYPTO_malloc_debug_init() [M]
7083 The memory debug functions are NULL by default, unless the library
7084 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7085 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7086 gives the standard debugging functions that come with OpenSSL) or
7087 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7088 provided by the library user) must be used. When the standard
7089 debugging functions are used, CRYPTO_dbg_set_options can be used to
7090 request additional information:
7091 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7092 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7094 Also, things like CRYPTO_set_mem_functions will always give the
7095 expected result (the new set of functions is used for allocation
7096 and deallocation) at all times, regardless of platform and compiler
7099 To finish it up, some functions that were never use in any other
7100 way than through macros have a new API and new semantic:
7103 CRYPTO_dbg_realloc()
7106 All macros of value have retained their old syntax.
7107 [Richard Levitte and Bodo Moeller]
7109 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7110 ordering of SMIMECapabilities wasn't in "strength order" and there
7111 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7115 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7116 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7117 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7119 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7120 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7121 functionality to handle multipart/signed properly) and a utility
7122 called 'smime' to call all this stuff. This is based on code I
7123 originally wrote for Celo who have kindly allowed it to be
7124 included in OpenSSL.
7127 *) Add variants des_set_key_checked and des_set_key_unchecked of
7128 des_set_key (aka des_key_sched). Global variable des_check_key
7129 decides which of these is called by des_set_key; this way
7130 des_check_key behaves as it always did, but applications and
7131 the library itself, which was buggy for des_check_key == 1,
7132 have a cleaner way to pick the version they need.
7135 *) New function PKCS12_newpass() which changes the password of a
7139 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7140 dynamic mix. In both cases the ids can be used as an index into the
7141 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7142 functions so they accept a list of the field values and the
7143 application doesn't need to directly manipulate the X509_TRUST
7147 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7151 *) Modify the way the V3 extension code looks up extensions. This now
7152 works in a similar way to the object code: we have some "standard"
7153 extensions in a static table which is searched with OBJ_bsearch()
7154 and the application can add dynamic ones if needed. The file
7155 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7156 updated whenever a new extension is added to the core code and kept
7157 in ext_nid order. There is a simple program 'tabtest.c' which checks
7158 this. New extensions are not added too often so this file can readily
7159 be maintained manually.
7161 There are two big advantages in doing things this way. The extensions
7162 can be looked up immediately and no longer need to be "added" using
7163 X509V3_add_standard_extensions(): this function now does nothing.
7164 [Side note: I get *lots* of email saying the extension code doesn't
7165 work because people forget to call this function]
7166 Also no dynamic allocation is done unless new extensions are added:
7167 so if we don't add custom extensions there is no need to call
7168 X509V3_EXT_cleanup().
7171 *) Modify enc utility's salting as follows: make salting the default. Add a
7172 magic header, so unsalted files fail gracefully instead of just decrypting
7173 to garbage. This is because not salting is a big security hole, so people
7174 should be discouraged from doing it.
7177 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7178 digest to be passed on the command line but it only used this
7179 parameter when signing a certificate. Modified so all relevant
7180 operations are affected by the digest parameter including the
7181 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7182 DSA key was used because it didn't fix the digest.
7185 *) Initial certificate chain verify code. Currently tests the untrusted
7186 certificates for consistency with the verify purpose (which is set
7187 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7189 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7190 this is because it will reject chains with invalid extensions whereas
7191 every previous version of OpenSSL and SSLeay made no checks at all.
7193 Trust code: checks the root CA for the relevant trust settings. Trust
7194 settings have an initial value consistent with the verify purpose: e.g.
7195 if the verify purpose is for SSL client use it expects the CA to be
7196 trusted for SSL client use. However the default value can be changed to
7197 permit custom trust settings: one example of this would be to only trust
7198 certificates from a specific "secure" set of CAs.
7200 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7201 which should be used for version portability: especially since the
7202 verify structure is likely to change more often now.
7204 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7205 to set them. If not set then assume SSL clients will verify SSL servers
7208 Two new options to the verify program: -untrusted allows a set of
7209 untrusted certificates to be passed in and -purpose which sets the
7210 intended purpose of the certificate. If a purpose is set then the
7211 new chain verify code is used to check extension consistency.
7214 *) Support for the authority information access extension.
7217 *) Modify RSA and DSA PEM read routines to transparently handle
7218 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7219 public keys in a format compatible with certificate
7220 SubjectPublicKeyInfo structures. Unfortunately there were already
7221 functions called *_PublicKey_* which used various odd formats so
7222 these are retained for compatibility: however the DSA variants were
7223 never in a public release so they have been deleted. Changed dsa/rsa
7224 utilities to handle the new format: note no releases ever handled public
7225 keys so we should be OK.
7227 The primary motivation for this change is to avoid the same fiasco
7228 that dogs private keys: there are several incompatible private key
7229 formats some of which are standard and some OpenSSL specific and
7230 require various evil hacks to allow partial transparent handling and
7231 even then it doesn't work with DER formats. Given the option anything
7232 other than PKCS#8 should be dumped: but the other formats have to
7233 stay in the name of compatibility.
7235 With public keys and the benefit of hindsight one standard format
7236 is used which works with EVP_PKEY, RSA or DSA structures: though
7237 it clearly returns an error if you try to read the wrong kind of key.
7239 Added a -pubkey option to the 'x509' utility to output the public key.
7240 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7241 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7242 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7243 that do the same as the EVP_PKEY_assign_*() except they up the
7244 reference count of the added key (they don't "swallow" the
7248 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7249 CRLs would fail if the file contained no certificates or no CRLs:
7250 added a new function to read in both types and return the number
7251 read: this means that if none are read it will be an error. The
7252 DER versions of the certificate and CRL reader would always fail
7253 because it isn't possible to mix certificates and CRLs in DER format
7254 without choking one or the other routine. Changed this to just read
7255 a certificate: this is the best we can do. Also modified the code
7256 in apps/verify.c to take notice of return codes: it was previously
7257 attempting to read in certificates from NULL pointers and ignoring
7258 any errors: this is one reason why the cert and CRL reader seemed
7259 to work. It doesn't check return codes from the default certificate
7260 routines: these may well fail if the certificates aren't installed.
7263 *) Code to support otherName option in GeneralName.
7266 *) First update to verify code. Change the verify utility
7267 so it warns if it is passed a self signed certificate:
7268 for consistency with the normal behaviour. X509_verify
7269 has been modified to it will now verify a self signed
7270 certificate if *exactly* the same certificate appears
7271 in the store: it was previously impossible to trust a
7272 single self signed certificate. This means that:
7273 openssl verify ss.pem
7274 now gives a warning about a self signed certificate but
7275 openssl verify -CAfile ss.pem ss.pem
7279 *) For servers, store verify_result in SSL_SESSION data structure
7280 (and add it to external session representation).
7281 This is needed when client certificate verifications fails,
7282 but an application-provided verification callback (set by
7283 SSL_CTX_set_cert_verify_callback) allows accepting the session
7284 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7285 but returns 1): When the session is reused, we have to set
7286 ssl->verify_result to the appropriate error code to avoid
7288 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7290 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7291 case in PKCS7_dataInit() where the signed PKCS7 structure
7292 didn't contain any existing data because it was being created.
7293 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7295 *) Add a salt to the key derivation routines in enc.c. This
7296 forms the first 8 bytes of the encrypted file. Also add a
7297 -S option to allow a salt to be input on the command line.
7300 *) New function X509_cmp(). Oddly enough there wasn't a function
7301 to compare two certificates. We do this by working out the SHA1
7302 hash and comparing that. X509_cmp() will be needed by the trust
7306 *) SSL_get1_session() is like SSL_get_session(), but increments
7307 the reference count in the SSL_SESSION returned.
7308 [Geoff Thorpe <geoff@eu.c2.net>]
7310 *) Fix for 'req': it was adding a null to request attributes.
7311 Also change the X509_LOOKUP and X509_INFO code to handle
7312 certificate auxiliary information.
7315 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7319 *) Add the possibility to add extra information to the memory leak
7320 detecting output, to form tracebacks, showing from where each
7321 allocation was originated: CRYPTO_push_info("constant string") adds
7322 the string plus current file name and line number to a per-thread
7323 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7324 is like calling CYRPTO_pop_info() until the stack is empty.
7325 Also updated memory leak detection code to be multi-thread-safe.
7328 *) Add options -text and -noout to pkcs7 utility and delete the
7329 encryption options which never did anything. Update docs.
7332 *) Add options to some of the utilities to allow the pass phrase
7333 to be included on either the command line (not recommended on
7334 OSes like Unix) or read from the environment. Update the
7335 manpages and fix a few bugs.
7338 *) Add a few manpages for some of the openssl commands.
7341 *) Fix the -revoke option in ca. It was freeing up memory twice,
7342 leaking and not finding already revoked certificates.
7345 *) Extensive changes to support certificate auxiliary information.
7346 This involves the use of X509_CERT_AUX structure and X509_AUX
7347 functions. An X509_AUX function such as PEM_read_X509_AUX()
7348 can still read in a certificate file in the usual way but it
7349 will also read in any additional "auxiliary information". By
7350 doing things this way a fair degree of compatibility can be
7351 retained: existing certificates can have this information added
7352 using the new 'x509' options.
7354 Current auxiliary information includes an "alias" and some trust
7355 settings. The trust settings will ultimately be used in enhanced
7356 certificate chain verification routines: currently a certificate
7357 can only be trusted if it is self signed and then it is trusted
7361 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7362 The problem was that one of the replacement routines had not been working
7363 since SSLeay releases. For now the offending routine has been replaced
7364 with non-optimised assembler. Even so, this now gives around 95%
7365 performance improvement for 1024 bit RSA signs.
7368 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7369 handling. Most clients have the effective key size in bits equal to
7370 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7371 A few however don't do this and instead use the size of the decrypted key
7372 to determine the RC2 key length and the AlgorithmIdentifier to determine
7373 the effective key length. In this case the effective key length can still
7374 be 40 bits but the key length can be 168 bits for example. This is fixed
7375 by manually forcing an RC2 key into the EVP_PKEY structure because the
7376 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7377 the key length and effective key length are equal.
7380 *) Add a bunch of functions that should simplify the creation of
7381 X509_NAME structures. Now you should be able to do:
7382 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7383 and have it automatically work out the correct field type and fill in
7384 the structures. The more adventurous can try:
7385 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7386 and it will (hopefully) work out the correct multibyte encoding.
7389 *) Change the 'req' utility to use the new field handling and multibyte
7390 copy routines. Before the DN field creation was handled in an ad hoc
7391 way in req, ca, and x509 which was rather broken and didn't support
7392 BMPStrings or UTF8Strings. Since some software doesn't implement
7393 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7394 using the dirstring_type option. See the new comment in the default
7395 openssl.cnf for more info.
7398 *) Make crypto/rand/md_rand.c more robust:
7399 - Assure unique random numbers after fork().
7400 - Make sure that concurrent threads access the global counter and
7401 md serializably so that we never lose entropy in them
7402 or use exactly the same state in multiple threads.
7403 Access to the large state is not always serializable because
7404 the additional locking could be a performance killer, and
7405 md should be large enough anyway.
7408 *) New file apps/app_rand.c with commonly needed functionality
7409 for handling the random seed file.
7411 Use the random seed file in some applications that previously did not:
7413 dsaparam -genkey (which also ignored its '-rand' option),
7416 x509 (when signing).
7417 Except on systems with /dev/urandom, it is crucial to have a random
7418 seed file at least for key creation, DSA signing, and for DH exchanges;
7419 for RSA signatures we could do without one.
7421 gendh and gendsa (unlike genrsa) used to read only the first byte
7422 of each file listed in the '-rand' option. The function as previously
7423 found in genrsa is now in app_rand.c and is used by all programs
7424 that support '-rand'.
7427 *) In RAND_write_file, use mode 0600 for creating files;
7428 don't just chmod when it may be too late.
7431 *) Report an error from X509_STORE_load_locations
7432 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7435 *) New function ASN1_mbstring_copy() this copies a string in either
7436 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7437 into an ASN1_STRING type. A mask of permissible types is passed
7438 and it chooses the "minimal" type to use or an error if not type
7442 *) Add function equivalents to the various macros in asn1.h. The old
7443 macros are retained with an M_ prefix. Code inside the library can
7444 use the M_ macros. External code (including the openssl utility)
7445 should *NOT* in order to be "shared library friendly".
7448 *) Add various functions that can check a certificate's extensions
7449 to see if it usable for various purposes such as SSL client,
7450 server or S/MIME and CAs of these types. This is currently
7451 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7452 verification. Also added a -purpose flag to x509 utility to
7453 print out all the purposes.
7456 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7460 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7461 for, obtain and decode and extension and obtain its critical flag.
7462 This allows all the necessary extension code to be handled in a
7463 single function call.
7466 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7467 platforms. See crypto/rc4/rc4_enc.c for further details.
7470 *) New -noout option to asn1parse. This causes no output to be produced
7471 its main use is when combined with -strparse and -out to extract data
7472 from a file (which may not be in ASN.1 format).
7475 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7476 when producing the local key id.
7477 [Richard Levitte <levitte@stacken.kth.se>]
7479 *) New option -dhparam in s_server. This allows a DH parameter file to be
7480 stated explicitly. If it is not stated then it tries the first server
7481 certificate file. The previous behaviour hard coded the filename
7485 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7486 a public key to be input or output. For example:
7487 openssl rsa -in key.pem -pubout -out pubkey.pem
7488 Also added necessary DSA public key functions to handle this.
7491 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7492 in the message. This was handled by allowing
7493 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7494 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7496 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7497 to the end of the strings whereas this didn't. This would cause problems
7498 if strings read with d2i_ASN1_bytes() were later modified.
7499 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7501 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7502 data and it contains EOF it will end up returning an error. This is
7503 caused by input 46 bytes long. The cause is due to the way base64
7504 BIOs find the start of base64 encoded data. They do this by trying a
7505 trial decode on each line until they find one that works. When they
7506 do a flag is set and it starts again knowing it can pass all the
7507 data directly through the decoder. Unfortunately it doesn't reset
7508 the context it uses. This means that if EOF is reached an attempt
7509 is made to pass two EOFs through the context and this causes the
7510 resulting error. This can also cause other problems as well. As is
7511 usual with these problems it takes *ages* to find and the fix is
7512 trivial: move one line.
7513 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7515 *) Ugly workaround to get s_client and s_server working under Windows. The
7516 old code wouldn't work because it needed to select() on sockets and the
7517 tty (for keypresses and to see if data could be written). Win32 only
7518 supports select() on sockets so we select() with a 1s timeout on the
7519 sockets and then see if any characters are waiting to be read, if none
7520 are present then we retry, we also assume we can always write data to
7521 the tty. This isn't nice because the code then blocks until we've
7522 received a complete line of data and it is effectively polling the
7523 keyboard at 1s intervals: however it's quite a bit better than not
7524 working at all :-) A dedicated Windows application might handle this
7525 with an event loop for example.
7528 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7529 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7530 will be called when RSA_sign() and RSA_verify() are used. This is useful
7531 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7532 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7533 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7534 This necessitated the support of an extra signature type NID_md5_sha1
7535 for SSL signatures and modifications to the SSL library to use it instead
7536 of calling RSA_public_decrypt() and RSA_private_encrypt().
7539 *) Add new -verify -CAfile and -CApath options to the crl program, these
7540 will lookup a CRL issuers certificate and verify the signature in a
7541 similar way to the verify program. Tidy up the crl program so it
7542 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7543 less strict. It will now permit CRL extensions even if it is not
7544 a V2 CRL: this will allow it to tolerate some broken CRLs.
7547 *) Initialize all non-automatic variables each time one of the openssl
7548 sub-programs is started (this is necessary as they may be started
7549 multiple times from the "OpenSSL>" prompt).
7550 [Lennart Bang, Bodo Moeller]
7552 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7553 removing all other RSA functionality (this is what NO_RSA does). This
7554 is so (for example) those in the US can disable those operations covered
7555 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7559 *) Non-copying interface to BIO pairs.
7560 (still largely untested)
7563 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7564 ASCII string. This was handled independently in various places before.
7567 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7568 UTF8 strings a character at a time.
7571 *) Use client_version from client hello to select the protocol
7572 (s23_srvr.c) and for RSA client key exchange verification
7573 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7576 *) Add various utility functions to handle SPKACs, these were previously
7577 handled by poking round in the structure internals. Added new function
7578 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7579 print, verify and generate SPKACs. Based on an original idea from
7580 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7583 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7586 *) Allow the config file extension section to be overwritten on the
7587 command line. Based on an original idea from Massimiliano Pala
7588 <madwolf@comune.modena.it>. The new option is called -extensions
7589 and can be applied to ca, req and x509. Also -reqexts to override
7590 the request extensions in req and -crlexts to override the crl extensions
7594 *) Add new feature to the SPKAC handling in ca. Now you can include
7595 the same field multiple times by preceding it by "XXXX." for example:
7598 this is the same syntax as used in the req config file.
7601 *) Allow certificate extensions to be added to certificate requests. These
7602 are specified in a 'req_extensions' option of the req section of the
7603 config file. They can be printed out with the -text option to req but
7604 are otherwise ignored at present.
7607 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7608 data read consists of only the final block it would not decrypted because
7609 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7610 A misplaced 'break' also meant the decrypted final block might not be
7611 copied until the next read.
7614 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7615 a few extra parameters to the DH structure: these will be useful if
7616 for example we want the value of 'q' or implement X9.42 DH.
7619 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7620 provides hooks that allow the default DSA functions or functions on a
7621 "per key" basis to be replaced. This allows hardware acceleration and
7622 hardware key storage to be handled without major modification to the
7623 library. Also added low level modexp hooks and CRYPTO_EX structure and
7624 associated functions.
7627 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7628 as "read only": it can't be written to and the buffer it points to will
7629 not be freed. Reading from a read only BIO is much more efficient than
7630 a normal memory BIO. This was added because there are several times when
7631 an area of memory needs to be read from a BIO. The previous method was
7632 to create a memory BIO and write the data to it, this results in two
7633 copies of the data and an O(n^2) reading algorithm. There is a new
7634 function BIO_new_mem_buf() which creates a read only memory BIO from
7635 an area of memory. Also modified the PKCS#7 routines to use read only
7639 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7640 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7641 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7642 but a retry condition occured while trying to read the rest.
7645 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7646 NID_pkcs7_encrypted by default: this was wrong since this should almost
7647 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7648 the encrypted data type: this is a more sensible place to put it and it
7649 allows the PKCS#12 code to be tidied up that duplicated this
7653 *) Changed obj_dat.pl script so it takes its input and output files on
7654 the command line. This should avoid shell escape redirection problems
7658 *) Initial support for certificate extension requests, these are included
7659 in things like Xenroll certificate requests. Included functions to allow
7660 extensions to be obtained and added.
7663 *) -crlf option to s_client and s_server for sending newlines as
7664 CRLF (as required by many protocols).
7667 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7669 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7670 [Ralf S. Engelschall]
7672 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7673 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7675 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7679 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7680 DH parameters/keys (q is lost during that conversion, but the resulting
7681 DH parameters contain its length).
7683 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7684 much faster than DH_generate_parameters (which creates parameters
7685 where p = 2*q + 1), and also the smaller q makes DH computations
7686 much more efficient (160-bit exponentiation instead of 1024-bit
7687 exponentiation); so this provides a convenient way to support DHE
7688 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7689 utter importance to use
7690 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7692 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7693 when such DH parameters are used, because otherwise small subgroup
7694 attacks may become possible!
7697 *) Avoid memory leak in i2d_DHparams.
7700 *) Allow the -k option to be used more than once in the enc program:
7701 this allows the same encrypted message to be read by multiple recipients.
7704 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7705 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7706 it will always use the numerical form of the OID, even if it has a short
7710 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7711 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7712 otherwise bn_mod_exp was called. In the case of hardware keys for example
7713 no private key components need be present and it might store extra data
7714 in the RSA structure, which cannot be accessed from bn_mod_exp.
7715 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7716 private key operations.
7719 *) Added support for SPARC Linux.
7722 *) pem_password_cb function type incompatibly changed from
7723 typedef int pem_password_cb(char *buf, int size, int rwflag);
7725 ....(char *buf, int size, int rwflag, void *userdata);
7726 so that applications can pass data to their callbacks:
7727 The PEM[_ASN1]_{read,write}... functions and macros now take an
7728 additional void * argument, which is just handed through whenever
7729 the password callback is called.
7730 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7732 New function SSL_CTX_set_default_passwd_cb_userdata.
7734 Compatibility note: As many C implementations push function arguments
7735 onto the stack in reverse order, the new library version is likely to
7736 interoperate with programs that have been compiled with the old
7737 pem_password_cb definition (PEM_whatever takes some data that
7738 happens to be on the stack as its last argument, and the callback
7739 just ignores this garbage); but there is no guarantee whatsoever that
7742 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7743 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7744 problems not only on Windows, but also on some Unix platforms.
7745 To avoid problematic command lines, these definitions are now in an
7746 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7747 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7750 *) MIPS III/IV assembler module is reimplemented.
7753 *) More DES library cleanups: remove references to srand/rand and
7754 delete an unused file.
7757 *) Add support for the the free Netwide assembler (NASM) under Win32,
7758 since not many people have MASM (ml) and it can be hard to obtain.
7759 This is currently experimental but it seems to work OK and pass all
7760 the tests. Check out INSTALL.W32 for info.
7763 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7764 without temporary keys kept an extra copy of the server key,
7765 and connections with temporary keys did not free everything in case
7769 *) New function RSA_check_key and new openssl rsa option -check
7770 for verifying the consistency of RSA keys.
7771 [Ulf Moeller, Bodo Moeller]
7773 *) Various changes to make Win32 compile work:
7774 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7775 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7776 comparison" warnings.
7777 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7780 *) Add a debugging option to PKCS#5 v2 key generation function: when
7781 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7782 derived keys are printed to stderr.
7785 *) Copy the flags in ASN1_STRING_dup().
7786 [Roman E. Pavlov <pre@mo.msk.ru>]
7788 *) The x509 application mishandled signing requests containing DSA
7789 keys when the signing key was also DSA and the parameters didn't match.
7791 It was supposed to omit the parameters when they matched the signing key:
7792 the verifying software was then supposed to automatically use the CA's
7793 parameters if they were absent from the end user certificate.
7795 Omitting parameters is no longer recommended. The test was also
7796 the wrong way round! This was probably due to unusual behaviour in
7797 EVP_cmp_parameters() which returns 1 if the parameters match.
7798 This meant that parameters were omitted when they *didn't* match and
7799 the certificate was useless. Certificates signed with 'ca' didn't have
7801 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7803 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7804 The interface is as follows:
7805 Applications can use
7806 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7807 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7808 "off" is now the default.
7809 The library internally uses
7810 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7811 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7812 to disable memory-checking temporarily.
7814 Some inconsistent states that previously were possible (and were
7815 even the default) are now avoided.
7817 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7818 with each memory chunk allocated; this is occasionally more helpful
7819 than just having a counter.
7821 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7823 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7827 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7828 which largely parallels "options", but is for changing API behaviour,
7829 whereas "options" are about protocol behaviour.
7830 Initial "mode" flags are:
7832 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7833 a single record has been written.
7834 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7835 retries use the same buffer location.
7836 (But all of the contents must be
7840 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7843 *) Fix problems with no-hmac etc.
7844 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7846 *) New functions RSA_get_default_method(), RSA_set_method() and
7847 RSA_get_method(). These allows replacement of RSA_METHODs without having
7848 to mess around with the internals of an RSA structure.
7851 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7852 Also really enable memory leak checks in openssl.c and in some
7854 [Chad C. Mulligan, Bodo Moeller]
7856 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7857 up the length of negative integers. This has now been simplified to just
7858 store the length when it is first determined and use it later, rather
7859 than trying to keep track of where data is copied and updating it to
7861 [Steve Henson, reported by Brien Wheeler
7862 <bwheeler@authentica-security.com>]
7864 *) Add a new function PKCS7_signatureVerify. This allows the verification
7865 of a PKCS#7 signature but with the signing certificate passed to the
7866 function itself. This contrasts with PKCS7_dataVerify which assumes the
7867 certificate is present in the PKCS#7 structure. This isn't always the
7868 case: certificates can be omitted from a PKCS#7 structure and be
7869 distributed by "out of band" means (such as a certificate database).
7872 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7873 function prototypes in pem.h, also change util/mkdef.pl to add the
7874 necessary function names.
7877 *) mk1mf.pl (used by Windows builds) did not properly read the
7878 options set by Configure in the top level Makefile, and Configure
7879 was not even able to write more than one option correctly.
7880 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7883 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7884 file to be loaded from a BIO or FILE pointer. The BIO version will
7885 for example allow memory BIOs to contain config info.
7888 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7889 Whoever hopes to achieve shared-library compatibility across versions
7890 must use this, not the compile-time macro.
7891 (Exercise 0.9.4: Which is the minimum library version required by
7893 Note: All this applies only to multi-threaded programs, others don't
7897 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7898 through a BIO pair triggered the default case, i.e.
7899 SSLerr(...,SSL_R_UNKNOWN_STATE).
7902 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7903 can use the SSL library even if none of the specific BIOs is
7907 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7908 for the encoded length.
7909 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7911 *) Add initial documentation of the X509V3 functions.
7914 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7915 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7916 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7917 secure PKCS#8 private key format with a high iteration count.
7920 *) Fix determination of Perl interpreter: A perl or perl5
7921 _directory_ in $PATH was also accepted as the interpreter.
7922 [Ralf S. Engelschall]
7924 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7925 wrong with it but it was very old and did things like calling
7926 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7930 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7931 to use the new extension code.
7934 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7935 with macros. This should make it easier to change their form, add extra
7936 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7940 *) Add to configuration table a new entry that can specify an alternative
7941 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7942 according to Mark Crispin <MRC@Panda.COM>.
7946 *) DES CBC did not update the IV. Weird.
7949 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7950 Changing the behaviour of the former might break existing programs --
7951 where IV updating is needed, des_ncbc_encrypt can be used.
7954 *) When bntest is run from "make test" it drives bc to check its
7955 calculations, as well as internally checking them. If an internal check
7956 fails, it needs to cause bc to give a non-zero result or make test carries
7957 on without noticing the failure. Fixed.
7960 *) DES library cleanups.
7963 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7964 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7965 ciphers. NOTE: although the key derivation function has been verified
7966 against some published test vectors it has not been extensively tested
7967 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7971 *) Instead of "mkdir -p", which is not fully portable, use new
7972 Perl script "util/mkdir-p.pl".
7975 *) Rewrite the way password based encryption (PBE) is handled. It used to
7976 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7977 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7978 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7979 the 'parameter' field of the AlgorithmIdentifier is passed to the
7980 underlying key generation function so it must do its own ASN1 parsing.
7981 This has also changed the EVP_PBE_CipherInit() function which now has a
7982 'parameter' argument instead of literal salt and iteration count values
7983 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7986 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7987 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7988 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7989 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7990 value was just used as a "magic string" and not used directly its
7991 value doesn't matter.
7994 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7998 *) "linux-sparc64" configuration (ultrapenguin).
7999 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8000 "linux-sparc" configuration.
8001 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8003 *) config now generates no-xxx options for missing ciphers.
8006 *) Support the EBCDIC character set (work in progress).
8007 File ebcdic.c not yet included because it has a different license.
8008 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8010 *) Support BS2000/OSD-POSIX.
8011 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8013 *) Make callbacks for key generation use void * instead of char *.
8016 *) Make S/MIME samples compile (not yet tested).
8019 *) Additional typesafe stacks.
8022 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8026 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8028 *) New configuration variant "sco5-gcc".
8030 *) Updated some demos.
8031 [Sean O Riordain, Wade Scholine]
8033 *) Add missing BIO_free at exit of pkcs12 application.
8036 *) Fix memory leak in conf.c.
8039 *) Updates for Win32 to assembler version of MD5.
8042 *) Set #! path to perl in apps/der_chop to where we found it
8043 instead of using a fixed path.
8046 *) SHA library changes for irix64-mips4-cc.
8049 *) Improvements for VMS support.
8053 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8055 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8056 This also avoids the problems with SC4.2 and unpatched SC5.
8057 [Andy Polyakov <appro@fy.chalmers.se>]
8059 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8060 These are required because of the typesafe stack would otherwise break
8061 existing code. If old code used a structure member which used to be STACK
8062 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8063 sk_num or sk_value it would produce an error because the num, data members
8064 are not present in STACK_OF. Now it just produces a warning. sk_set
8065 replaces the old method of assigning a value to sk_value
8066 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8067 that does this will no longer work (and should use sk_set instead) but
8068 this could be regarded as a "questionable" behaviour anyway.
8071 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8072 correctly handle encrypted S/MIME data.
8075 *) Change type of various DES function arguments from des_cblock
8076 (which means, in function argument declarations, pointer to char)
8077 to des_cblock * (meaning pointer to array with 8 char elements),
8078 which allows the compiler to do more typechecking; it was like
8079 that back in SSLeay, but with lots of ugly casts.
8081 Introduce new type const_des_cblock.
8084 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8085 problems: find RecipientInfo structure that matches recipient certificate
8086 and initialise the ASN1 structures properly based on passed cipher.
8089 *) Belatedly make the BN tests actually check the results.
8092 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8093 to and from BNs: it was completely broken. New compilation option
8094 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8095 key elements as negative integers.
8098 *) Reorganize and speed up MD5.
8099 [Andy Polyakov <appro@fy.chalmers.se>]
8102 [Richard Levitte <richard@levitte.org>]
8104 *) New option -out to asn1parse to allow the parsed structure to be
8105 output to a file. This is most useful when combined with the -strparse
8106 option to examine the output of things like OCTET STRINGS.
8109 *) Make SSL library a little more fool-proof by not requiring any longer
8110 that SSL_set_{accept,connect}_state be called before
8111 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8112 in many applications because usually everything *appeared* to work as
8113 intended anyway -- now it really works as intended).
8116 *) Move openssl.cnf out of lib/.
8119 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8120 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8121 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8122 [Ralf S. Engelschall]
8124 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8125 handle PKCS#7 enveloped data properly.
8126 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8128 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8129 copying pointers. The cert_st handling is changed by this in
8130 various ways (and thus what used to be known as ctx->default_cert
8131 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8132 any longer when s->cert does not give us what we need).
8133 ssl_cert_instantiate becomes obsolete by this change.
8134 As soon as we've got the new code right (possibly it already is?),
8135 we have solved a couple of bugs of the earlier code where s->cert
8136 was used as if it could not have been shared with other SSL structures.
8138 Note that using the SSL API in certain dirty ways now will result
8139 in different behaviour than observed with earlier library versions:
8140 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8141 does not influence s as it used to.
8143 In order to clean up things more thoroughly, inside SSL_SESSION
8144 we don't use CERT any longer, but a new structure SESS_CERT
8145 that holds per-session data (if available); currently, this is
8146 the peer's certificate chain and, for clients, the server's certificate
8147 and temporary key. CERT holds only those values that can have
8148 meaningful defaults in an SSL_CTX.
8151 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8152 from the internal representation. Various PKCS#7 fixes: remove some
8153 evil casts and set the enc_dig_alg field properly based on the signing
8157 *) Allow PKCS#12 password to be set from the command line or the
8158 environment. Let 'ca' get its config file name from the environment
8159 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8163 *) Allow certificate policies extension to use an IA5STRING for the
8164 organization field. This is contrary to the PKIX definition but
8165 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8169 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8170 without disallowing inline assembler and the like for non-pedantic builds.
8173 *) Support Borland C++ builder.
8174 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8179 *) SHA-1 cleanups and performance enhancements.
8180 [Andy Polyakov <appro@fy.chalmers.se>]
8182 *) Sparc v8plus assembler for the bignum library.
8183 [Andy Polyakov <appro@fy.chalmers.se>]
8185 *) Accept any -xxx and +xxx compiler options in Configure.
8188 *) Update HPUX configuration.
8191 *) Add missing sk_<type>_unshift() function to safestack.h
8192 [Ralf S. Engelschall]
8194 *) New function SSL_CTX_use_certificate_chain_file that sets the
8195 "extra_cert"s in addition to the certificate. (This makes sense
8196 only for "PEM" format files, as chains as a whole are not
8200 *) Support verify_depth from the SSL API.
8201 x509_vfy.c had what can be considered an off-by-one-error:
8202 Its depth (which was not part of the external interface)
8203 was actually counting the number of certificates in a chain;
8204 now it really counts the depth.
8207 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8208 instead of X509err, which often resulted in confusing error
8209 messages since the error codes are not globally unique
8210 (e.g. an alleged error in ssl3_accept when a certificate
8211 didn't match the private key).
8213 *) New function SSL_CTX_set_session_id_context that allows to set a default
8214 value (so that you don't need SSL_set_session_id_context for each
8215 connection using the SSL_CTX).
8218 *) OAEP decoding bug fix.
8221 *) Support INSTALL_PREFIX for package builders, as proposed by
8225 *) New Configure options "threads" and "no-threads". For systems
8226 where the proper compiler options are known (currently Solaris
8227 and Linux), "threads" is the default.
8230 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8233 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8234 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8235 such as /usr/local/bin.
8238 *) "make linux-shared" to build shared libraries.
8239 [Niels Poppe <niels@netbox.org>]
8241 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8244 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8245 extension adding in x509 utility.
8248 *) Remove NOPROTO sections and error code comments.
8251 *) Partial rewrite of the DEF file generator to now parse the ANSI
8255 *) New Configure options --prefix=DIR and --openssldir=DIR.
8258 *) Complete rewrite of the error code script(s). It is all now handled
8259 by one script at the top level which handles error code gathering,
8260 header rewriting and C source file generation. It should be much better
8261 than the old method: it now uses a modified version of Ulf's parser to
8262 read the ANSI prototypes in all header files (thus the old K&R definitions
8263 aren't needed for error creation any more) and do a better job of
8264 translating function codes into names. The old 'ASN1 error code imbedded
8265 in a comment' is no longer necessary and it doesn't use .err files which
8266 have now been deleted. Also the error code call doesn't have to appear all
8267 on one line (which resulted in some large lines...).
8270 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8273 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8274 0 (which usually indicates a closed connection), but continue reading.
8277 *) Fix some race conditions.
8280 *) Add support for CRL distribution points extension. Add Certificate
8281 Policies and CRL distribution points documentation.
8284 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8287 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8288 8 of keying material. Merlin has also confirmed interop with this fix
8289 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8290 [Merlin Hughes <merlin@baltimore.ie>]
8292 *) Fix lots of warnings.
8293 [Richard Levitte <levitte@stacken.kth.se>]
8295 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8296 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8297 [Richard Levitte <levitte@stacken.kth.se>]
8299 *) Fix problems with sizeof(long) == 8.
8300 [Andy Polyakov <appro@fy.chalmers.se>]
8302 *) Change functions to ANSI C.
8305 *) Fix typos in error codes.
8306 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8308 *) Remove defunct assembler files from Configure.
8311 *) SPARC v8 assembler BIGNUM implementation.
8312 [Andy Polyakov <appro@fy.chalmers.se>]
8314 *) Support for Certificate Policies extension: both print and set.
8315 Various additions to support the r2i method this uses.
8318 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8319 return a const string when you are expecting an allocated buffer.
8322 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8323 types DirectoryString and DisplayText.
8326 *) Add code to allow r2i extensions to access the configuration database,
8327 add an LHASH database driver and add several ctx helper functions.
8330 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8331 fail when they extended the size of a BIGNUM.
8334 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8335 support typesafe stack.
8338 *) Fix typo in SSL_[gs]et_options().
8339 [Nils Frostberg <nils@medcom.se>]
8341 *) Delete various functions and files that belonged to the (now obsolete)
8342 old X509V3 handling code.
8345 *) New Configure option "rsaref".
8348 *) Don't auto-generate pem.h.
8351 *) Introduce type-safe ASN.1 SETs.
8354 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8355 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8357 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8358 that links with OpenSSL (well at least cause lots of warnings), but fear
8359 not: the conversion is trivial, and it eliminates loads of evil casts. A
8360 few STACKed things have been converted already. Feel free to convert more.
8361 In the fullness of time, I'll do away with the STACK type altogether.
8364 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8365 specified in <certfile> by updating the entry in the index.txt file.
8366 This way one no longer has to edit the index.txt file manually for
8367 revoking a certificate. The -revoke option does the gory details now.
8368 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8370 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8371 `-text' option at all and this way the `-noout -text' combination was
8372 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8373 [Ralf S. Engelschall]
8375 *) Make sure a corresponding plain text error message exists for the
8376 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8377 verify callback function determined that a certificate was revoked.
8378 [Ralf S. Engelschall]
8380 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8381 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8382 all available cipers including rc5, which was forgotten until now.
8383 In order to let the testing shell script know which algorithms
8384 are available, a new (up to now undocumented) command
8385 "openssl list-cipher-commands" is used.
8388 *) Bugfix: s_client occasionally would sleep in select() when
8389 it should have checked SSL_pending() first.
8392 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8393 the raw DSA values prior to ASN.1 encoding.
8396 *) Tweaks to Configure
8397 [Niels Poppe <niels@netbox.org>]
8399 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8403 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8406 *) New config option to avoid instructions that are illegal on the 80386.
8407 The default code is faster, but requires at least a 486.
8410 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8411 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8412 same as SSL2_VERSION anyway.
8415 *) New "-showcerts" option for s_client.
8418 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8419 application. Various cleanups and fixes.
8422 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8423 modify error routines to work internally. Add error codes and PBE init
8424 to library startup routines.
8427 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8428 packing functions to asn1 and evp. Changed function names and error
8429 codes along the way.
8432 *) PKCS12 integration: and so it begins... First of several patches to
8433 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8434 objects to objects.h
8437 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8438 and display support for Thawte strong extranet extension.
8441 *) Add LinuxPPC support.
8442 [Jeff Dubrule <igor@pobox.org>]
8444 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8445 bn_div_words in alpha.s.
8446 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8448 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8449 OAEP isn't supported when OpenSSL is built with RSAref.
8450 [Ulf Moeller <ulf@fitug.de>]
8452 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8453 so they no longer are missing under -DNOPROTO.
8454 [Soren S. Jorvang <soren@t.dk>]
8457 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8459 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8460 doesn't work when the session is reused. Coming soon!
8463 *) Fix a security hole, that allows sessions to be reused in the wrong
8464 context thus bypassing client cert protection! All software that uses
8465 client certs and session caches in multiple contexts NEEDS PATCHING to
8466 allow session reuse! A fuller solution is in the works.
8467 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8469 *) Some more source tree cleanups (removed obsolete files
8470 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8471 permission on "config" script to be executable) and a fix for the INSTALL
8473 [Ulf Moeller <ulf@fitug.de>]
8475 *) Remove some legacy and erroneous uses of malloc, free instead of
8477 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8479 *) Make rsa_oaep_test return non-zero on error.
8480 [Ulf Moeller <ulf@fitug.de>]
8482 *) Add support for native Solaris shared libraries. Configure
8483 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8484 if someone would make that last step automatic.
8485 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8487 *) ctx_size was not built with the right compiler during "make links". Fixed.
8490 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8491 except NULL ciphers". This means the default cipher list will no longer
8492 enable NULL ciphers. They need to be specifically enabled e.g. with
8493 the string "DEFAULT:eNULL".
8496 *) Fix to RSA private encryption routines: if p < q then it would
8497 occasionally produce an invalid result. This will only happen with
8498 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8501 *) Be less restrictive and allow also `perl util/perlpath.pl
8502 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8503 because this way one can also use an interpreter named `perl5' (which is
8504 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8505 installed as `perl').
8506 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8508 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8509 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8511 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8512 advapi32.lib to Win32 build and change the pem test comparision
8513 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8514 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8515 and crypto/des/ede_cbcm_enc.c.
8518 *) DES quad checksum was broken on big-endian architectures. Fixed.
8521 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8522 Win32 test batch file so it (might) work again. The Win32 test batch file
8523 is horrible: I feel ill....
8526 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8527 in e_os.h. Audit of header files to check ANSI and non ANSI
8528 sections: 10 functions were absent from non ANSI section and not exported
8529 from Windows DLLs. Fixed up libeay.num for new functions.
8532 *) Make `openssl version' output lines consistent.
8533 [Ralf S. Engelschall]
8535 *) Fix Win32 symbol export lists for BIO functions: Added
8536 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8537 to ms/libeay{16,32}.def.
8538 [Ralf S. Engelschall]
8540 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8541 fine under Unix and passes some trivial tests I've now added. But the
8542 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8543 added to make sure no one expects that this stuff really works in the
8544 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8545 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8547 [Ralf S. Engelschall]
8549 *) Fix the generation of two part addresses in perl.
8550 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8552 *) Add config entry for Linux on MIPS.
8553 [John Tobey <jtobey@channel1.com>]
8555 *) Make links whenever Configure is run, unless we are on Windoze.
8558 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8559 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8563 *) Add a useful kludge to allow package maintainers to specify compiler and
8564 other platforms details on the command line without having to patch the
8565 Configure script everytime: One now can use ``perl Configure
8566 <id>:<details>'', i.e. platform ids are allowed to have details appended
8567 to them (seperated by colons). This is treated as there would be a static
8568 pre-configured entry in Configure's %table under key <id> with value
8569 <details> and ``perl Configure <id>'' is called. So, when you want to
8570 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8571 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8572 now, which overrides the FreeBSD-elf entry on-the-fly.
8573 [Ralf S. Engelschall]
8575 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8578 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8579 on the `perl Configure ...' command line. This way one can compile
8580 OpenSSL libraries with Position Independent Code (PIC) which is needed
8581 for linking it into DSOs.
8582 [Ralf S. Engelschall]
8584 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8588 *) Cleaned up the LICENSE document: The official contact for any license
8589 questions now is the OpenSSL core team under openssl-core@openssl.org.
8590 And add a paragraph about the dual-license situation to make sure people
8591 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8592 to the OpenSSL toolkit.
8593 [Ralf S. Engelschall]
8595 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8596 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8597 Additonally cleaned up the `make links' target: Remove unnecessary
8598 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8599 to speed processing and no longer clutter the display with confusing
8600 stuff. Instead only the actually done links are displayed.
8601 [Ralf S. Engelschall]
8603 *) Permit null encryption ciphersuites, used for authentication only. It used
8604 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8605 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8609 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8610 signed attributes when verifying signatures (this would break them),
8611 the detached data encoding was wrong and public keys obtained using
8612 X509_get_pubkey() weren't freed.
8615 *) Add text documentation for the BUFFER functions. Also added a work around
8616 to a Win95 console bug. This was triggered by the password read stuff: the
8617 last character typed gets carried over to the next fread(). If you were
8618 generating a new cert request using 'req' for example then the last
8619 character of the passphrase would be CR which would then enter the first
8623 *) Added the new `Includes OpenSSL Cryptography Software' button as
8624 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8625 button and can be used by applications based on OpenSSL to show the
8626 relationship to the OpenSSL project.
8627 [Ralf S. Engelschall]
8629 *) Remove confusing variables in function signatures in files
8630 ssl/ssl_lib.c and ssl/ssl.h.
8631 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8633 *) Don't install bss_file.c under PREFIX/include/
8634 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8636 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8637 functions that return function pointers and has support for NT specific
8638 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8639 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8640 unsigned to signed types: this was killing the Win32 compile.
8643 *) Add new certificate file to stack functions,
8644 SSL_add_dir_cert_subjects_to_stack() and
8645 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8646 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8647 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8648 This means that Apache-SSL and similar packages don't have to mess around
8649 to add as many CAs as they want to the preferred list.
8652 *) Experiment with doxygen documentation. Currently only partially applied to
8654 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8655 openssl.doxy as the configuration file.
8658 *) Get rid of remaining C++-style comments which strict C compilers hate.
8659 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8661 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8662 compiled in by default: it has problems with large keys.
8665 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8666 DH private keys and/or callback functions which directly correspond to
8667 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8668 is needed for applications which have to configure certificates on a
8669 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8671 For the RSA certificate situation is makes no difference, but
8672 for the DSA certificate situation this fixes the "no shared cipher"
8673 problem where the OpenSSL cipher selection procedure failed because the
8674 temporary keys were not overtaken from the context and the API provided
8675 no way to reconfigure them.
8676 The new functions now let applications reconfigure the stuff and they
8677 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8678 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8679 non-public-API function ssl_cert_instantiate() is used as a helper
8680 function and also to reduce code redundancy inside ssl_rsa.c.
8681 [Ralf S. Engelschall]
8683 *) Move s_server -dcert and -dkey options out of the undocumented feature
8684 area because they are useful for the DSA situation and should be
8685 recognized by the users.
8686 [Ralf S. Engelschall]
8688 *) Fix the cipher decision scheme for export ciphers: the export bits are
8689 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8690 SSL_EXP_MASK. So, the original variable has to be used instead of the
8691 already masked variable.
8692 [Richard Levitte <levitte@stacken.kth.se>]
8694 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8695 [Richard Levitte <levitte@stacken.kth.se>]
8697 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8698 from `int' to `unsigned int' because it's a length and initialized by
8699 EVP_DigestFinal() which expects an `unsigned int *'.
8700 [Richard Levitte <levitte@stacken.kth.se>]
8702 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8703 script. Instead use the usual Shell->Perl transition trick.
8704 [Ralf S. Engelschall]
8706 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8707 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8708 -noout -modulus' as it's already the case for `openssl rsa -noout
8709 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8710 currently the public key is printed (a decision which was already done by
8711 `openssl dsa -modulus' in the past) which serves a similar purpose.
8712 Additionally the NO_RSA no longer completely removes the whole -modulus
8713 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8715 [Ralf S. Engelschall]
8717 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8718 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8719 [Arne Ansper <arne@ats.cyber.ee>]
8721 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8722 to be added. Now both 'req' and 'ca' can use new objects defined in the
8726 *) Add cool BIO that does syslog (or event log on NT).
8727 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8729 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8730 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8731 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8732 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8735 *) Add preliminary config info for new extension code.
8738 *) Make RSA_NO_PADDING really use no padding.
8739 [Ulf Moeller <ulf@fitug.de>]
8741 *) Generate errors when private/public key check is done.
8744 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8745 for some CRL extensions and new objects added.
8748 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8749 key usage extension and fuller support for authority key id.
8752 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8753 padding method for RSA, which is recommended for new applications in PKCS
8754 #1 v2.0 (RFC 2437, October 1998).
8755 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8756 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8757 against Bleichbacher's attack on RSA.
8758 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8761 *) Updates to the new SSL compression code
8762 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8764 *) Fix so that the version number in the master secret, when passed
8765 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8766 (because the server will not accept higher), that the version number
8767 is 0x03,0x01, not 0x03,0x00
8768 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8770 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8771 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8772 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8775 *) Support for RAW extensions where an arbitrary extension can be
8776 created by including its DER encoding. See apps/openssl.cnf for
8780 *) Make sure latest Perl versions don't interpret some generated C array
8781 code as Perl array code in the crypto/err/err_genc.pl script.
8782 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8784 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8785 not many people have the assembler. Various Win32 compilation fixes and
8786 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8790 *) Modify configure script 'Configure' to automatically create crypto/date.h
8791 file under Win32 and also build pem.h from pem.org. New script
8792 util/mkfiles.pl to create the MINFO file on environments that can't do a
8793 'make files': perl util/mkfiles.pl >MINFO should work.
8796 *) Major rework of DES function declarations, in the pursuit of correctness
8797 and purity. As a result, many evil casts evaporated, and some weirdness,
8798 too. You may find this causes warnings in your code. Zapping your evil
8799 casts will probably fix them. Mostly.
8802 *) Fix for a typo in asn1.h. Bug fix to object creation script
8803 obj_dat.pl. It considered a zero in an object definition to mean
8804 "end of object": none of the objects in objects.h have any zeros
8805 so it wasn't spotted.
8806 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8808 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8809 Masking (CBCM). In the absence of test vectors, the best I have been able
8810 to do is check that the decrypt undoes the encrypt, so far. Send me test
8811 vectors if you have them.
8814 *) Correct calculation of key length for export ciphers (too much space was
8815 allocated for null ciphers). This has not been tested!
8818 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8819 message is now correct (it understands "crypto" and "ssl" on its
8820 command line). There is also now an "update" option. This will update
8821 the util/ssleay.num and util/libeay.num files with any new functions.
8823 perl util/mkdef.pl crypto ssl update
8824 it will update them.
8827 *) Overhauled the Perl interface (perl/*):
8828 - ported BN stuff to OpenSSL's different BN library
8829 - made the perl/ source tree CVS-aware
8830 - renamed the package from SSLeay to OpenSSL (the files still contain
8831 their history because I've copied them in the repository)
8832 - removed obsolete files (the test scripts will be replaced
8833 by better Test::Harness variants in the future)
8834 [Ralf S. Engelschall]
8836 *) First cut for a very conservative source tree cleanup:
8837 1. merge various obsolete readme texts into doc/ssleay.txt
8838 where we collect the old documents and readme texts.
8839 2. remove the first part of files where I'm already sure that we no
8840 longer need them because of three reasons: either they are just temporary
8841 files which were left by Eric or they are preserved original files where
8842 I've verified that the diff is also available in the CVS via "cvs diff
8843 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8844 the crypto/md/ stuff).
8845 [Ralf S. Engelschall]
8847 *) More extension code. Incomplete support for subject and issuer alt
8848 name, issuer and authority key id. Change the i2v function parameters
8849 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8850 what that's for :-) Fix to ASN1 macro which messed up
8851 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8854 *) Preliminary support for ENUMERATED type. This is largely copied from the
8858 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8859 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8861 *) Make sure `make rehash' target really finds the `openssl' program.
8862 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8864 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8865 like to hear about it if this slows down other processors.
8868 *) Add CygWin32 platform information to Configure script.
8869 [Alan Batie <batie@aahz.jf.intel.com>]
8871 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8872 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8874 *) New program nseq to manipulate netscape certificate sequences
8877 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8881 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8882 but the BN code had some problems that would cause failures when
8883 doing certificate verification and some other functions.
8884 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8886 *) Add ASN1 and PEM code to support netscape certificate sequences.
8889 *) Add ASN1 and PEM code to support netscape certificate sequences.
8892 *) Add several PKIX and private extended key usage OIDs.
8895 *) Modify the 'ca' program to handle the new extension code. Modify
8896 openssl.cnf for new extension format, add comments.
8899 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8900 and add a sample to openssl.cnf so req -x509 now adds appropriate
8904 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8905 error code, add initial support to X509_print() and x509 application.
8908 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8909 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8910 stuff is currently isolated and isn't even compiled yet.
8913 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8914 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8915 Removed the versions check from X509 routines when loading extensions:
8916 this allows certain broken certificates that don't set the version
8917 properly to be processed.
8920 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8921 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8922 can still be regenerated with "make depend".
8925 *) Spelling mistake in C version of CAST-128.
8926 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8928 *) Changes to the error generation code. The perl script err-code.pl
8929 now reads in the old error codes and retains the old numbers, only
8930 adding new ones if necessary. It also only changes the .err files if new
8931 codes are added. The makefiles have been modified to only insert errors
8932 when needed (to avoid needlessly modifying header files). This is done
8933 by only inserting errors if the .err file is newer than the auto generated
8934 C file. To rebuild all the error codes from scratch (the old behaviour)
8935 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8936 or delete all the .err files.
8939 *) CAST-128 was incorrectly implemented for short keys. The C version has
8940 been fixed, but is untested. The assembler versions are also fixed, but
8941 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8942 to regenerate it if needed.
8943 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8944 Hagino <itojun@kame.net>]
8946 *) File was opened incorrectly in randfile.c.
8947 [Ulf Möller <ulf@fitug.de>]
8949 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8950 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8951 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8952 al: it's just almost always a UTCTime. Note this patch adds new error
8953 codes so do a "make errors" if there are problems.
8956 *) Correct Linux 1 recognition in config.
8957 [Ulf Möller <ulf@fitug.de>]
8959 *) Remove pointless MD5 hash when using DSA keys in ca.
8960 [Anonymous <nobody@replay.com>]
8962 *) Generate an error if given an empty string as a cert directory. Also
8963 generate an error if handed NULL (previously returned 0 to indicate an
8964 error, but didn't set one).
8965 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8967 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8970 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8971 parameters. This was causing a warning which killed off the Win32 compile.
8974 *) Remove C++ style comments from crypto/bn/bn_local.h.
8975 [Neil Costigan <neil.costigan@celocom.com>]
8977 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8978 based on a text string, looking up short and long names and finally
8979 "dot" format. The "dot" format stuff didn't work. Added new function
8980 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8981 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8982 OID is not part of the table.
8985 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8986 X509_LOOKUP_by_alias().
8989 *) Sort openssl functions by name.
8992 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8993 encryption from sample DSA keys (in case anyone is interested the password
8997 *) Make _all_ *_free functions accept a NULL pointer.
8998 [Frans Heymans <fheymans@isaserver.be>]
9000 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9002 [Anonymous <nobody@replay.com>]
9004 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9005 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9007 *) Don't blow it for numeric -newkey arguments to apps/req.
9008 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9010 *) Temp key "for export" tests were wrong in s3_srvr.c.
9011 [Anonymous <nobody@replay.com>]
9013 *) Add prototype for temp key callback functions
9014 SSL_CTX_set_tmp_{rsa,dh}_callback().
9017 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9018 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9021 *) X509_name_add_entry() freed the wrong thing after an error.
9022 [Arne Ansper <arne@ats.cyber.ee>]
9024 *) rsa_eay.c would attempt to free a NULL context.
9025 [Arne Ansper <arne@ats.cyber.ee>]
9027 *) BIO_s_socket() had a broken should_retry() on Windoze.
9028 [Arne Ansper <arne@ats.cyber.ee>]
9030 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9031 [Arne Ansper <arne@ats.cyber.ee>]
9033 *) Make sure the already existing X509_STORE->depth variable is initialized
9034 in X509_STORE_new(), but document the fact that this variable is still
9035 unused in the certificate verification process.
9036 [Ralf S. Engelschall]
9038 *) Fix the various library and apps files to free up pkeys obtained from
9039 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9042 *) Fix reference counting in X509_PUBKEY_get(). This makes
9043 demos/maurice/example2.c work, amongst others, probably.
9044 [Steve Henson and Ben Laurie]
9046 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9047 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9048 are no longer created. This way we have a single and consistent command
9049 line interface `openssl <command>', similar to `cvs <command>'.
9050 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9052 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9053 BIT STRING wrapper always have zero unused bits.
9056 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9059 *) Make the top-level INSTALL documentation easier to understand.
9062 *) Makefiles updated to exit if an error occurs in a sub-directory
9063 make (including if user presses ^C) [Paul Sutton]
9065 *) Make Montgomery context stuff explicit in RSA data structure.
9068 *) Fix build order of pem and err to allow for generated pem.h.
9071 *) Fix renumbering bug in X509_NAME_delete_entry().
9074 *) Enhanced the err-ins.pl script so it makes the error library number
9075 global and can add a library name. This is needed for external ASN1 and
9076 other error libraries.
9079 *) Fixed sk_insert which never worked properly.
9082 *) Fix ASN1 macros so they can handle indefinite length construted
9083 EXPLICIT tags. Some non standard certificates use these: they can now
9087 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9088 into a single doc/ssleay.txt bundle. This way the information is still
9089 preserved but no longer messes up this directory. Now it's new room for
9090 the new set of documenation files.
9091 [Ralf S. Engelschall]
9093 *) SETs were incorrectly DER encoded. This was a major pain, because they
9094 shared code with SEQUENCEs, which aren't coded the same. This means that
9095 almost everything to do with SETs or SEQUENCEs has either changed name or
9096 number of arguments.
9097 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9099 *) Fix test data to work with the above.
9102 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9103 was already fixed by Eric for 0.9.1 it seems.
9104 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9106 *) Autodetect FreeBSD3.
9109 *) Fix various bugs in Configure. This affects the following platforms:
9113 unixware-2.0-pentium
9117 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9118 before they are needed.
9121 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9125 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9127 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9128 changed SSLeay to OpenSSL in version strings.
9129 [Ralf S. Engelschall]
9131 *) Some fixups to the top-level documents.
9134 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9135 because the symlink to include/ was missing.
9136 [Ralf S. Engelschall]
9138 *) Incorporated the popular no-RSA/DSA-only patches
9139 which allow to compile a RSA-free SSLeay.
9140 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9142 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9143 when "ssleay" is still not found.
9144 [Ralf S. Engelschall]
9146 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9147 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9149 *) Updated the README file.
9150 [Ralf S. Engelschall]
9152 *) Added various .cvsignore files in the CVS repository subdirs
9153 to make a "cvs update" really silent.
9154 [Ralf S. Engelschall]
9156 *) Recompiled the error-definition header files and added
9157 missing symbols to the Win32 linker tables.
9158 [Ralf S. Engelschall]
9160 *) Cleaned up the top-level documents;
9161 o new files: CHANGES and LICENSE
9162 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9163 o merged COPYRIGHT into LICENSE
9164 o removed obsolete TODO file
9165 o renamed MICROSOFT to INSTALL.W32
9166 [Ralf S. Engelschall]
9168 *) Removed dummy files from the 0.9.1b source tree:
9169 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9170 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9171 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9172 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9173 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9174 [Ralf S. Engelschall]
9176 *) Added various platform portability fixes.
9179 *) The Genesis of the OpenSSL rpject:
9180 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9181 Young and Tim J. Hudson created while they were working for C2Net until
9183 [The OpenSSL Project]
9186 Changes between 0.9.0b and 0.9.1b [not released]
9188 *) Updated a few CA certificates under certs/
9191 *) Changed some BIGNUM api stuff.
9194 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9195 DGUX x86, Linux Alpha, etc.
9198 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9199 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9203 *) Add -strparse option to asn1pars program which parses nested
9205 [Dr Stephen Henson <shenson@bigfoot.com>]
9207 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9210 *) DSA fix for "ca" program.
9213 *) Added "-genkey" option to "dsaparam" program.
9216 *) Added RIPE MD160 (rmd160) message digest.
9219 *) Added -a (all) option to "ssleay version" command.
9222 *) Added PLATFORM define which is the id given to Configure.
9225 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9228 *) Extended the ASN.1 parser routines.
9231 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9234 *) Added a BN_CTX to the BN library.
9237 *) Fixed the weak key values in DES library
9240 *) Changed API in EVP library for cipher aliases.
9243 *) Added support for RC2/64bit cipher.
9246 *) Converted the lhash library to the crypto/mem.c functions.
9249 *) Added more recognized ASN.1 object ids.
9252 *) Added more RSA padding checks for SSL/TLS.
9255 *) Added BIO proxy/filter functionality.
9258 *) Added extra_certs to SSL_CTX which can be used
9259 send extra CA certificates to the client in the CA cert chain sending
9260 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9263 *) Now Fortezza is denied in the authentication phase because
9264 this is key exchange mechanism is not supported by SSLeay at all.
9267 *) Additional PKCS1 checks.
9270 *) Support the string "TLSv1" for all TLS v1 ciphers.
9273 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9274 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9277 *) Fixed a few memory leaks.
9280 *) Fixed various code and comment typos.
9283 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9284 bytes sent in the client random.
9285 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob