5 Changes between 0.9.8k and 1.0 [xx XXX xxxx]
7 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
8 needlessly dereferenced structures, used obsolete functions and
9 didn't handle all updated verify codes correctly.
12 *) Delete MD2 from algorithm tables. This follows the recommendation in
13 several standards that it is not used in new applications due to
14 several cryptographic weaknesses. The algorithm is also disabled in
15 the default configuration.
18 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
19 indicate the initial BIO being pushed or popped. This makes it possible
20 to determine whether the BIO is the one explicitly called or as a result
21 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
22 it handles reference counts correctly and doesn't zero out the I/O bio
23 when it is not being explicitly popped. WARNING: applications which
24 included workarounds for the old buggy behaviour will need to be modified
25 or they could free up already freed BIOs.
28 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
29 OPENSSL_asc2uni the original names were too generic and cause name
31 [Guenter <lists@gknw.net>]
33 *) Add ECDHE and PSK support to DTLS.
34 [Michael Tuexen <tuexen@fh-muenster.de>]
36 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
40 *) Add "missing" function EVP_MD_flags() (without this the only way to
41 retrieve a digest flags is by accessing the structure directly. Update
42 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
43 or cipher is registered as in the "from" argument. Print out all
44 registered digests in the dgst usage message instead of manually
45 attempting to work them out.
48 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
49 this allows the use of compression and extensions. Change default cipher
50 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
51 by default unless an application cipher string requests it.
54 *) Alter match criteria in PKCS12_parse(). It used to try to use local
55 key ids to find matching certificates and keys but some PKCS#12 files
56 don't follow the (somewhat unwritten) rules and this strategy fails.
57 Now just gather all certificates together and the first private key
58 then look for the first certificate that matches the key.
61 *) Support use of registered digest and cipher names for dgst and cipher
62 commands instead of having to add each one as a special case. So now
69 openssl dgst -sha256 foo
71 and this works for ENGINE based algorithms too.
75 *) Update Gost ENGINE to support parameter files.
76 [Victor B. Wagner <vitus@cryptocom.ru>]
78 *) Support GeneralizedTime in ca utility.
79 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
81 *) Enhance the hash format used for certificate directory links. The new
82 form uses the canonical encoding (meaning equivalent names will work
83 even if they aren't identical) and uses SHA1 instead of MD5. This form
84 is incompatible with the older format and as a result c_rehash should
85 be used to rebuild symbolic links.
88 *) Make PKCS#8 the default write format for private keys, replacing the
89 traditional format. This form is standardised, more secure and doesn't
90 include an implicit MD5 dependency.
93 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
94 committed to OpenSSL should pass this lot as a minimum.
97 *) Add session ticket override functionality for use by EAP-FAST.
98 [Jouni Malinen <j@w1.fi>]
100 *) Modify HMAC functions to return a value. Since these can be implemented
101 in an ENGINE errors can occur.
104 *) Type-checked OBJ_bsearch_ex.
107 *) Type-checked OBJ_bsearch. Also some constification necessitated
108 by type-checking. Still to come: TXT_DB, bsearch(?),
109 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
113 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
114 seconds to a tm structure directly, instead of going through OS
115 specific date routines. This avoids any issues with OS routines such
116 as the year 2038 bug. New *_adj() functions for ASN1 time structures
117 and X509_time_adj_ex() to cover the extended range. The existing
118 X509_time_adj() is still usable and will no longer have any date issues.
121 *) Delta CRL support. New use deltas option which will attempt to locate
122 and search any appropriate delta CRLs available.
124 This work was sponsored by Google.
127 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
128 code and add additional score elements. Validate alternate CRL paths
129 as part of the CRL checking and indicate a new error "CRL path validation
130 error" in this case. Applications wanting additional details can use
131 the verify callback and check the new "parent" field. If this is not
132 NULL CRL path validation is taking place. Existing applications wont
133 see this because it requires extended CRL support which is off by
136 This work was sponsored by Google.
139 *) Support for freshest CRL extension.
141 This work was sponsored by Google.
144 *) Initial indirect CRL support. Currently only supported in the CRLs
145 passed directly and not via lookup. Process certificate issuer
146 CRL entry extension and lookup CRL entries by bother issuer name
147 and serial number. Check and process CRL issuer entry in IDP extension.
149 This work was sponsored by Google.
152 *) Add support for distinct certificate and CRL paths. The CRL issuer
153 certificate is validated separately in this case. Only enabled if
154 an extended CRL support flag is set: this flag will enable additional
155 CRL functionality in future.
157 This work was sponsored by Google.
160 *) Add support for policy mappings extension.
162 This work was sponsored by Google.
165 *) Fixes to pathlength constraint, self issued certificate handling,
166 policy processing to align with RFC3280 and PKITS tests.
168 This work was sponsored by Google.
171 *) Support for name constraints certificate extension. DN, email, DNS
172 and URI types are currently supported.
174 This work was sponsored by Google.
177 *) To cater for systems that provide a pointer-based thread ID rather
178 than numeric, deprecate the current numeric thread ID mechanism and
179 replace it with a structure and associated callback type. This
180 mechanism allows a numeric "hash" to be extracted from a thread ID in
181 either case, and on platforms where pointers are larger than 'long',
182 mixing is done to help ensure the numeric 'hash' is usable even if it
183 can't be guaranteed unique. The default mechanism is to use "&errno"
184 as a pointer-based thread ID to distinguish between threads.
186 Applications that want to provide their own thread IDs should now use
187 CRYPTO_THREADID_set_callback() to register a callback that will call
188 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
190 Note that ERR_remove_state() is now deprecated, because it is tied
191 to the assumption that thread IDs are numeric. ERR_remove_state(0)
192 to free the current thread's error state should be replaced by
193 ERR_remove_thread_state(NULL).
195 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
196 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
197 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
198 application was previously providing a numeric thread callback that
199 was inappropriate for distinguishing threads, then uniqueness might
200 have been obtained with &errno that happened immediately in the
201 intermediate development versions of OpenSSL; this is no longer the
202 case, the numeric thread callback will now override the automatic use
204 [Geoff Thorpe, with help from Bodo Moeller]
206 *) Initial support for different CRL issuing certificates. This covers a
207 simple case where the self issued certificates in the chain exist and
208 the real CRL issuer is higher in the existing chain.
210 This work was sponsored by Google.
213 *) Removed effectively defunct crypto/store from the build.
216 *) Revamp of STACK to provide stronger type-checking. Still to come:
217 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
218 ASN1_STRING, CONF_VALUE.
221 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
222 RAM on SSL connections. This option can save about 34k per idle SSL.
225 *) Revamp of LHASH to provide stronger type-checking. Still to come:
226 STACK, TXT_DB, bsearch, qsort.
229 *) Initial support for Cryptographic Message Syntax (aka CMS) based
230 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
231 support for data, signedData, compressedData, digestedData and
232 encryptedData, envelopedData types included. Scripts to check against
233 RFC4134 examples draft and interop and consistency checks of many
234 content types and variants.
237 *) Add options to enc utility to support use of zlib compression BIO.
240 *) Extend mk1mf to support importing of options and assembly language
241 files from Configure script, currently only included in VC-WIN32.
242 The assembly language rules can now optionally generate the source
243 files from the associated perl scripts.
246 *) Implement remaining functionality needed to support GOST ciphersuites.
247 Interop testing has been performed using CryptoPro implementations.
248 [Victor B. Wagner <vitus@cryptocom.ru>]
250 *) s390x assembler pack.
253 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
257 *) Implement Opaque PRF Input TLS extension as specified in
258 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
259 official specification yet and no extension type assignment by
260 IANA exists, this extension (for now) will have to be explicitly
261 enabled when building OpenSSL by providing the extension number
262 to use. For example, specify an option
264 -DTLSEXT_TYPE_opaque_prf_input=0x9527
266 to the "config" or "Configure" script to enable the extension,
267 assuming extension number 0x9527 (which is a completely arbitrary
268 and unofficial assignment based on the MD5 hash of the Internet
269 Draft). Note that by doing so, you potentially lose
270 interoperability with other TLS implementations since these might
271 be using the same extension number for other purposes.
273 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
274 opaque PRF input value to use in the handshake. This will create
275 an interal copy of the length-'len' string at 'src', and will
276 return non-zero for success.
278 To get more control and flexibility, provide a callback function
281 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
282 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
286 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
289 Callback function 'cb' will be called in handshakes, and is
290 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
291 Argument 'arg' is for application purposes (the value as given to
292 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
293 be provided to the callback function). The callback function
294 has to return non-zero to report success: usually 1 to use opaque
295 PRF input just if possible, or 2 to enforce use of the opaque PRF
296 input. In the latter case, the library will abort the handshake
297 if opaque PRF input is not successfully negotiated.
299 Arguments 'peerinput' and 'len' given to the callback function
300 will always be NULL and 0 in the case of a client. A server will
301 see the client's opaque PRF input through these variables if
302 available (NULL and 0 otherwise). Note that if the server
303 provides an opaque PRF input, the length must be the same as the
304 length of the client's opaque PRF input.
306 Note that the callback function will only be called when creating
307 a new session (session resumption can resume whatever was
308 previously negotiated), and will not be called in SSL 2.0
309 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
310 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
311 for applications that need to enforce opaque PRF input.
315 *) Update ssl code to support digests other than SHA1+MD5 for handshake
318 [Victor B. Wagner <vitus@cryptocom.ru>]
320 *) Add RFC4507 support to OpenSSL. This includes the corrections in
321 RFC4507bis. The encrypted ticket format is an encrypted encoded
322 SSL_SESSION structure, that way new session features are automatically
325 If a client application caches session in an SSL_SESSION structure
326 support is transparent because tickets are now stored in the encoded
329 The SSL_CTX structure automatically generates keys for ticket
330 protection in servers so again support should be possible
331 with no application modification.
333 If a client or server wishes to disable RFC4507 support then the option
334 SSL_OP_NO_TICKET can be set.
336 Add a TLS extension debugging callback to allow the contents of any client
337 or server extensions to be examined.
339 This work was sponsored by Google.
342 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
343 OpenSSL should now compile cleanly on gcc 4.2
344 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
346 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
347 support including streaming MAC support: this is required for GOST
349 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
351 *) Add option -stream to use PKCS#7 streaming in smime utility. New
352 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
353 to output in BER and PEM format.
356 *) Experimental support for use of HMAC via EVP_PKEY interface. This
357 allows HMAC to be handled via the EVP_DigestSign*() interface. The
358 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
359 ENGINE support for HMAC keys which are unextractable. New -mac and
360 -macopt options to dgst utility.
363 *) New option -sigopt to dgst utility. Update dgst to use
364 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
365 alternative signing paramaters such as X9.31 or PSS in the dgst
369 *) Change ssl_cipher_apply_rule(), the internal function that does
370 the work each time a ciphersuite string requests enabling
371 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
372 removing ("!foo+bar") a class of ciphersuites: Now it maintains
373 the order of disabled ciphersuites such that those ciphersuites
374 that most recently went from enabled to disabled not only stay
375 in order with respect to each other, but also have higher priority
376 than other disabled ciphersuites the next time ciphersuites are
379 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
380 the same ciphersuites as with "HIGH" alone, but in a specific
381 order where the PSK ciphersuites come first (since they are the
382 most recently disabled ciphersuites when "HIGH" is parsed).
384 Also, change ssl_create_cipher_list() (using this new
385 funcionality) such that between otherwise identical
386 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
390 *) Change ssl_create_cipher_list() so that it automatically
391 arranges the ciphersuites in reasonable order before starting
392 to process the rule string. Thus, the definition for "DEFAULT"
393 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
394 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
395 This makes it much easier to arrive at a reasonable default order
396 in applications for which anonymous ciphers are OK (meaning
397 that you can't actually use DEFAULT).
398 [Bodo Moeller; suggested by Victor Duchovni]
400 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
401 processing) into multiple integers instead of setting
402 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
403 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
404 (These masks as well as the individual bit definitions are hidden
405 away into the non-exported interface ssl/ssl_locl.h, so this
406 change to the definition of the SSL_CIPHER structure shouldn't
407 affect applications.) This give us more bits for each of these
408 categories, so there is no longer a need to coagulate AES128 and
409 AES256 into a single algorithm bit, and to coagulate Camellia128
410 and Camellia256 into a single algorithm bit, which has led to all
413 Thus, among other things, the kludge introduced in 0.9.7m and
414 0.9.8e for masking out AES256 independently of AES128 or masking
415 out Camellia256 independently of AES256 is not needed here in 0.9.9.
417 With the change, we also introduce new ciphersuite aliases that
418 so far were missing: "AES128", "AES256", "CAMELLIA128", and
422 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
423 Use the leftmost N bytes of the signature input if the input is
424 larger than the prime q (with N being the size in bytes of q).
427 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
428 it yet and it is largely untested.
431 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
434 *) Initial incomplete changes to avoid need for function casts in OpenSSL
435 some compilers (gcc 4.2 and later) reject their use. Safestack is
436 reimplemented. Update ASN1 to avoid use of legacy functions.
439 *) Win32/64 targets are linked with Winsock2.
442 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
443 to external functions. This can be used to increase CRL handling
444 efficiency especially when CRLs are very large by (for example) storing
445 the CRL revoked certificates in a database.
448 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
449 new CRLs added to a directory can be used. New command line option
450 -verify_return_error to s_client and s_server. This causes real errors
451 to be returned by the verify callback instead of carrying on no matter
452 what. This reflects the way a "real world" verify callback would behave.
455 *) GOST engine, supporting several GOST algorithms and public key formats.
456 Kindly donated by Cryptocom.
459 *) Partial support for Issuing Distribution Point CRL extension. CRLs
460 partitioned by DP are handled but no indirect CRL or reason partitioning
461 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
462 selected via a scoring technique which handles IDP and AKID in CRLs.
465 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
466 will ultimately be used for all verify operations: this will remove the
467 X509_STORE dependency on certificate verification and allow alternative
468 lookup methods. X509_STORE based implementations of these two callbacks.
471 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
472 Modify get_crl() to find a valid (unexpired) CRL if possible.
475 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
476 this would be called X509_CRL_cmp() but that name is already used by
477 a function that just compares CRL issuer names. Cache several CRL
478 extensions in X509_CRL structure and cache CRLDP in X509.
481 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
482 this maps equivalent X509_NAME structures into a consistent structure.
483 Name comparison can then be performed rapidly using memcmp().
486 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
490 *) Allow digests to supply their own micalg string for S/MIME type using
491 the ctrl EVP_MD_CTRL_MICALG.
494 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
495 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
496 ctrl. It can then customise the structure before and/or after signing
500 *) New function OBJ_add_sigid() to allow application defined signature OIDs
501 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
502 to free up any added signature OIDs.
505 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
506 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
507 digest and cipher tables. New options added to openssl utility:
508 list-message-digest-algorithms and list-cipher-algorithms.
511 *) Change the array representation of binary polynomials: the list
512 of degrees of non-zero coefficients is now terminated with -1.
513 Previously it was terminated with 0, which was also part of the
514 value; thus, the array representation was not applicable to
515 polynomials where t^0 has coefficient zero. This change makes
516 the array representation useful in a more general context.
519 *) Various modifications and fixes to SSL/TLS cipher string
520 handling. For ECC, the code now distinguishes between fixed ECDH
521 with RSA certificates on the one hand and with ECDSA certificates
522 on the other hand, since these are separate ciphersuites. The
523 unused code for Fortezza ciphersuites has been removed.
525 For consistency with EDH, ephemeral ECDH is now called "EECDH"
526 (not "ECDHE"). For consistency with the code for DH
527 certificates, use of ECDH certificates is now considered ECDH
528 authentication, not RSA or ECDSA authentication (the latter is
529 merely the CA's signing algorithm and not actively used in the
532 The temporary ciphersuite alias "ECCdraft" is no longer
533 available, and ECC ciphersuites are no longer excluded from "ALL"
534 and "DEFAULT". The following aliases now exist for RFC 4492
535 ciphersuites, most of these by analogy with the DH case:
537 kECDHr - ECDH cert, signed with RSA
538 kECDHe - ECDH cert, signed with ECDSA
539 kECDH - ECDH cert (signed with either RSA or ECDSA)
540 kEECDH - ephemeral ECDH
541 ECDH - ECDH cert or ephemeral ECDH
547 AECDH - anonymous ECDH
548 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
552 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
553 Use correct micalg parameters depending on digest(s) in signed message.
556 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
557 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
560 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
561 an engine to register a method. Add ENGINE lookups for methods and
562 functional reference processing.
565 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
566 EVP_{Sign,Verify}* which allow an application to customise the signature
570 *) New -resign option to smime utility. This adds one or more signers
571 to an existing PKCS#7 signedData structure. Also -md option to use an
572 alternative message digest algorithm for signing.
575 *) Tidy up PKCS#7 routines and add new functions to make it easier to
576 create PKCS7 structures containing multiple signers. Update smime
577 application to support multiple signers.
580 *) New -macalg option to pkcs12 utility to allow setting of an alternative
584 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
585 Reorganize PBE internals to lookup from a static table using NIDs,
586 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
587 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
588 PRF which will be automatically used with PBES2.
591 *) Replace the algorithm specific calls to generate keys in "req" with the
595 *) Update PKCS#7 enveloped data routines to use new API. This is now
596 supported by any public key method supporting the encrypt operation. A
597 ctrl is added to allow the public key algorithm to examine or modify
598 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
602 *) Add a ctrl to asn1 method to allow a public key algorithm to express
603 a default digest type to use. In most cases this will be SHA1 but some
604 algorithms (such as GOST) need to specify an alternative digest. The
605 return value indicates how strong the prefernce is 1 means optional and
606 2 is mandatory (that is it is the only supported type). Modify
607 ASN1_item_sign() to accept a NULL digest argument to indicate it should
608 use the default md. Update openssl utilities to use the default digest
609 type for signing if it is not explicitly indicated.
612 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
613 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
614 signing method from the key type. This effectively removes the link
615 between digests and public key types.
618 *) Add an OID cross reference table and utility functions. Its purpose is to
619 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
620 rsaEncryption. This will allow some of the algorithm specific hackery
621 needed to use the correct OID to be removed.
624 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
625 structures for PKCS7_sign(). They are now set up by the relevant public
629 *) Add provisional EC pkey method with support for ECDSA and ECDH.
632 *) Add support for key derivation (agreement) in the API, DH method and
636 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
637 public and private key formats. As a side effect these add additional
638 command line functionality not previously available: DSA signatures can be
639 generated and verified using pkeyutl and DH key support and generation in
644 [Oliver Tappe <zooey@hirschkaefer.de>]
646 *) New make target "install_html_docs" installs HTML renditions of the
648 [Oliver Tappe <zooey@hirschkaefer.de>]
650 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
651 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
652 support key and parameter generation and add initial key generation
653 functionality for RSA.
656 *) Add functions for main EVP_PKEY_method operations. The undocumented
657 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
658 EVP_PKEY_{encrypt,decrypt}_old.
661 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
662 key API, doesn't do much yet.
665 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
666 public key algorithms. New option to openssl utility:
667 "list-public-key-algorithms" to print out info.
670 *) Implement the Supported Elliptic Curves Extension for
671 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
674 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
675 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
678 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
679 utilities such as rsa, dsa, dsaparam etc except they process any key
683 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
684 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
685 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
689 *) Initial support for pluggable public key ASN1.
690 De-spaghettify the public key ASN1 handling. Move public and private
691 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
692 algorithm specific handling to a single module within the relevant
693 algorithm directory. Add functions to allow (near) opaque processing
694 of public and private key structures.
697 *) Implement the Supported Point Formats Extension for
698 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
701 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
702 for the psk identity [hint] and the psk callback functions to the
703 SSL_SESSION, SSL and SSL_CTX structure.
706 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
710 SSL_CTX_use_psk_identity_hint
711 SSL_get_psk_identity_hint
713 SSL_use_psk_identity_hint
715 [Mika Kousa and Pasi Eronen of Nokia Corporation]
717 *) Add RFC 3161 compliant time stamp request creation, response generation
718 and response verification functionality.
719 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
721 *) Add initial support for TLS extensions, specifically for the server_name
722 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
723 have new members for a host name. The SSL data structure has an
724 additional member SSL_CTX *initial_ctx so that new sessions can be
725 stored in that context to allow for session resumption, even after the
726 SSL has been switched to a new SSL_CTX in reaction to a client's
727 server_name extension.
729 New functions (subject to change):
732 SSL_get_servername_type()
735 New CTRL codes and macros (subject to change):
737 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
738 - SSL_CTX_set_tlsext_servername_callback()
739 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
740 - SSL_CTX_set_tlsext_servername_arg()
741 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
743 openssl s_client has a new '-servername ...' option.
745 openssl s_server has new options '-servername_host ...', '-cert2 ...',
746 '-key2 ...', '-servername_fatal' (subject to change). This allows
747 testing the HostName extension for a specific single host name ('-cert'
748 and '-key' remain fallbacks for handshakes without HostName
749 negotiation). If the unrecogninzed_name alert has to be sent, this by
750 default is a warning; it becomes fatal with the '-servername_fatal'
753 [Peter Sylvester, Remy Allais, Christophe Renou]
755 *) Whirlpool hash implementation is added.
758 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
759 bn(64,32). Because of instruction set limitations it doesn't have
760 any negative impact on performance. This was done mostly in order
761 to make it possible to share assembler modules, such as bn_mul_mont
762 implementations, between 32- and 64-bit builds without hassle.
765 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
766 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
770 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
771 dedicated Montgomery multiplication procedure, is introduced.
772 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
773 "64-bit" performance on certain 32-bit targets.
776 *) New option SSL_OP_NO_COMP to disable use of compression selectively
777 in SSL structures. New SSL ctrl to set maximum send fragment size.
778 Save memory by seeting the I/O buffer sizes dynamically instead of
779 using the maximum available value.
782 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
783 in addition to the text details.
786 *) Very, very preliminary EXPERIMENTAL support for printing of general
787 ASN1 structures. This currently produces rather ugly output and doesn't
788 handle several customised structures at all.
791 *) Integrated support for PVK file format and some related formats such
792 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
793 these in the 'rsa' and 'dsa' utilities.
796 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
799 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
800 place for the (very old) "NETSCAPE" format certificates which are now
801 handled using new ASN1 code equivalents.
804 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
805 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
806 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
809 *) Modify CRL distribution points extension code to print out previously
810 unsupported fields. Enhance extension setting code to allow setting of
814 *) Add print and set support for Issuing Distribution Point CRL extension.
817 *) Change 'Configure' script to enable Camellia by default.
820 Changes between 0.9.8k and 0.9.8l [xx XXX xxxx]
822 *) Add support for --libdir option and LIBDIR variable in makefiles. This
823 makes it possible to install openssl libraries in locations which
824 have names other than "lib", for example "/usr/lib64" which some
826 [Steve Henson, based on patch from Jeremy Utley]
828 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
829 X690 8.9.12 and can produce some misleading textual output of OIDs.
830 [Steve Henson, reported by Dan Kaminsky]
832 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
836 *) Fix the server certificate chain building code to use X509_verify_cert(),
837 it used to have an ad-hoc builder which was unable to cope with anything
838 other than a simple chain.
839 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
841 *) Don't check self signed certificate signatures in X509_verify_cert()
842 by default (a flag can override this): it just wastes time without
843 adding any security. As a useful side effect self signed root CAs
844 with non-FIPS digests are now usable in FIPS mode.
847 *) In dtls1_process_out_of_seq_message() the check if the current message
848 is already buffered was missing. For every new message was memory
849 allocated, allowing an attacker to perform an denial of service attack
850 with sending out of seq handshake messages until there is no memory
851 left. Additionally every future messege was buffered, even if the
852 sequence number made no sense and would be part of another handshake.
853 So only messages with sequence numbers less than 10 in advance will be
855 [Robin Seggelmann, discovered by Daniel Mentz]
857 *) Records are buffered if they arrive with a future epoch to be
858 processed after finishing the corresponding handshake. There is
859 currently no limitation to this buffer allowing an attacker to perform
860 a DOS attack with sending records with future epochs until there is no
861 memory left. This patch adds the pqueue_size() function to detemine
862 the size of a buffer and limits the record buffer to 100 entries.
863 [Robin Seggelmann, discovered by Daniel Mentz]
865 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
866 parent structure is freed.
869 *) Handle non-blocking I/O properly in SSL_shutdown() call.
870 [Darryl Miles <darryl-mailinglists@netbauds.net>]
873 [Ilya O. <vrghost@gmail.com>]
875 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
877 *) Don't set val to NULL when freeing up structures, it is freed up by
878 underlying code. If sizeof(void *) > sizeof(long) this can result in
879 zeroing past the valid field. (CVE-2009-0789)
880 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
882 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
883 checked correctly. This would allow some invalid signed attributes to
884 appear to verify correctly. (CVE-2009-0591)
885 [Ivan Nestlerode <inestlerode@us.ibm.com>]
887 *) Reject UniversalString and BMPString types with invalid lengths. This
888 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
889 a legal length. (CVE-2009-0590)
892 *) Set S/MIME signing as the default purpose rather than setting it
893 unconditionally. This allows applications to override it at the store
897 *) Permit restricted recursion of ASN1 strings. This is needed in practice
898 to handle some structures.
901 *) Improve efficiency of mem_gets: don't search whole buffer each time
903 [Jeremy Shapiro <jnshapir@us.ibm.com>]
905 *) New -hex option for openssl rand.
908 *) Print out UTF8String and NumericString when parsing ASN1.
911 *) Support NumericString type for name components.
914 *) Allow CC in the environment to override the automatically chosen
915 compiler. Note that nothing is done to ensure flags work with the
919 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
921 *) Properly check EVP_VerifyFinal() and similar return values
923 [Ben Laurie, Bodo Moeller, Google Security Team]
925 *) Enable TLS extensions by default.
928 *) Allow the CHIL engine to be loaded, whether the application is
929 multithreaded or not. (This does not release the developer from the
930 obligation to set up the dynamic locking callbacks.)
931 [Sander Temme <sander@temme.net>]
933 *) Use correct exit code if there is an error in dgst command.
934 [Steve Henson; problem pointed out by Roland Dirlewanger]
936 *) Tweak Configure so that you need to say "experimental-jpake" to enable
937 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
940 *) Add experimental JPAKE support, including demo authentication in
941 s_client and s_server.
944 *) Set the comparison function in v3_addr_canonize().
945 [Rob Austein <sra@hactrn.net>]
947 *) Add support for XMPP STARTTLS in s_client.
948 [Philip Paeps <philip@freebsd.org>]
950 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
951 to ensure that even with this option, only ciphersuites in the
952 server's preference list will be accepted. (Note that the option
953 applies only when resuming a session, so the earlier behavior was
954 just about the algorithm choice for symmetric cryptography.)
957 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
959 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
960 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
963 *) The fix in 0.9.8c that supposedly got rid of unsafe
964 double-checked locking was incomplete for RSA blinding,
965 addressing just one layer of what turns out to have been
966 doubly unsafe triple-checked locking.
968 So now fix this for real by retiring the MONT_HELPER macro
969 in crypto/rsa/rsa_eay.c.
971 [Bodo Moeller; problem pointed out by Marius Schilder]
973 *) Various precautionary measures:
975 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
977 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
978 (NB: This would require knowledge of the secret session ticket key
979 to exploit, in which case you'd be SOL either way.)
981 - Change bn_nist.c so that it will properly handle input BIGNUMs
982 outside the expected range.
984 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
987 [Neel Mehta, Bodo Moeller]
989 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
990 the load fails. Useful for distros.
991 [Ben Laurie and the FreeBSD team]
993 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
996 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
999 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1001 This work was sponsored by Logica.
1004 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1005 keystores. Support for SSL/TLS client authentication too.
1006 Not compiled unless enable-capieng specified to Configure.
1008 This work was sponsored by Logica.
1011 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1012 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1013 attribute creation routines such as certifcate requests and PKCS#12
1017 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1019 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1020 handshake which could lead to a cilent crash as found using the
1021 Codenomicon TLS test suite (CVE-2008-1672)
1022 [Steve Henson, Mark Cox]
1024 *) Fix double free in TLS server name extensions which could lead to
1025 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1028 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1030 Clear the error queue to ensure that error entries left from
1031 older function calls do not interfere with the correct operation.
1032 [Lutz Jaenicke, Erik de Castro Lopo]
1034 *) Remove root CA certificates of commercial CAs:
1036 The OpenSSL project does not recommend any specific CA and does not
1037 have any policy with respect to including or excluding any CA.
1038 Therefore it does not make any sense to ship an arbitrary selection
1039 of root CA certificates with the OpenSSL software.
1042 *) RSA OAEP patches to fix two separate invalid memory reads.
1043 The first one involves inputs when 'lzero' is greater than
1044 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1045 before the beginning of from). The second one involves inputs where
1046 the 'db' section contains nothing but zeroes (there is a one-byte
1047 invalid read after the end of 'db').
1048 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1050 *) Partial backport from 0.9.9-dev:
1052 Introduce bn_mul_mont (dedicated Montgomery multiplication
1053 procedure) as a candidate for BIGNUM assembler implementation.
1054 While 0.9.9-dev uses assembler for various architectures, only
1055 x86_64 is available by default here in the 0.9.8 branch, and
1056 32-bit x86 is available through a compile-time setting.
1058 To try the 32-bit x86 assembler implementation, use Configure
1059 option "enable-montasm" (which exists only for this backport).
1061 As "enable-montasm" for 32-bit x86 disclaims code stability
1062 anyway, in this constellation we activate additional code
1063 backported from 0.9.9-dev for further performance improvements,
1064 namely BN_from_montgomery_word. (To enable this otherwise,
1065 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1067 [Andy Polyakov (backport partially by Bodo Moeller)]
1069 *) Add TLS session ticket callback. This allows an application to set
1070 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1071 values. This is useful for key rollover for example where several key
1072 sets may exist with different names.
1075 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1076 This was broken until now in 0.9.8 releases, such that the only way
1077 a registered ENGINE could be used (assuming it initialises
1078 successfully on the host) was to explicitly set it as the default
1079 for the relevant algorithms. This is in contradiction with 0.9.7
1080 behaviour and the documentation. With this fix, when an ENGINE is
1081 registered into a given algorithm's table of implementations, the
1082 'uptodate' flag is reset so that auto-discovery will be used next
1083 time a new context for that algorithm attempts to select an
1085 [Ian Lister (tweaked by Geoff Thorpe)]
1087 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1088 implemention in the following ways:
1090 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1093 Lack of BER streaming support means one pass streaming processing is
1094 only supported if data is detached: setting the streaming flag is
1095 ignored for embedded content.
1097 CMS support is disabled by default and must be explicitly enabled
1098 with the enable-cms configuration option.
1101 *) Update the GMP engine glue to do direct copies between BIGNUM and
1102 mpz_t when openssl and GMP use the same limb size. Otherwise the
1103 existing "conversion via a text string export" trick is still used.
1104 [Paul Sheer <paulsheer@gmail.com>]
1106 *) Zlib compression BIO. This is a filter BIO which compressed and
1107 uncompresses any data passed through it.
1110 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1111 RFC3394 compatible AES key wrapping.
1114 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1115 sets string data without copying. X509_ALGOR_set0() and
1116 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1117 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1118 from an X509_ATTRIBUTE structure optionally checking it occurs only
1119 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1123 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1124 to get the expected BN_FLG_CONSTTIME behavior.
1125 [Bodo Moeller (Google)]
1129 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1130 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1131 - added some more tests to do_tests.pl
1132 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1133 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1134 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1135 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1136 - various changes to netware.pl to enable gcc-cross builds on Win32
1138 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1139 - various changes to fix missing prototype warnings
1140 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1141 - added AES, WHIRLPOOL and CPUID assembler code to build files
1142 - added missing AES assembler make rules to mk1mf.pl
1143 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1144 [Guenter Knauf <eflash@gmx.net>]
1146 *) Implement certificate status request TLS extension defined in RFC3546.
1147 A client can set the appropriate parameters and receive the encoded
1148 OCSP response via a callback. A server can query the supplied parameters
1149 and set the encoded OCSP response in the callback. Add simplified examples
1150 to s_client and s_server.
1153 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1155 *) Fix various bugs:
1156 + Binary incompatibility of ssl_ctx_st structure
1157 + DTLS interoperation with non-compliant servers
1158 + Don't call get_session_cb() without proposed session
1159 + Fix ia64 assembler code
1160 [Andy Polyakov, Steve Henson]
1162 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1164 *) DTLS Handshake overhaul. There were longstanding issues with
1165 OpenSSL DTLS implementation, which were making it impossible for
1166 RFC 4347 compliant client to communicate with OpenSSL server.
1167 Unfortunately just fixing these incompatibilities would "cut off"
1168 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1169 server keeps tolerating non RFC compliant syntax. The opposite is
1170 not true, 0.9.8f client can not communicate with earlier server.
1171 This update even addresses CVE-2007-4995.
1174 *) Changes to avoid need for function casts in OpenSSL: some compilers
1175 (gcc 4.2 and later) reject their use.
1176 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1179 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1180 RFC4507bis. The encrypted ticket format is an encrypted encoded
1181 SSL_SESSION structure, that way new session features are automatically
1184 If a client application caches session in an SSL_SESSION structure
1185 support is transparent because tickets are now stored in the encoded
1188 The SSL_CTX structure automatically generates keys for ticket
1189 protection in servers so again support should be possible
1190 with no application modification.
1192 If a client or server wishes to disable RFC4507 support then the option
1193 SSL_OP_NO_TICKET can be set.
1195 Add a TLS extension debugging callback to allow the contents of any client
1196 or server extensions to be examined.
1198 This work was sponsored by Google.
1201 *) Add initial support for TLS extensions, specifically for the server_name
1202 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1203 have new members for a host name. The SSL data structure has an
1204 additional member SSL_CTX *initial_ctx so that new sessions can be
1205 stored in that context to allow for session resumption, even after the
1206 SSL has been switched to a new SSL_CTX in reaction to a client's
1207 server_name extension.
1209 New functions (subject to change):
1211 SSL_get_servername()
1212 SSL_get_servername_type()
1215 New CTRL codes and macros (subject to change):
1217 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1218 - SSL_CTX_set_tlsext_servername_callback()
1219 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1220 - SSL_CTX_set_tlsext_servername_arg()
1221 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1223 openssl s_client has a new '-servername ...' option.
1225 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1226 '-key2 ...', '-servername_fatal' (subject to change). This allows
1227 testing the HostName extension for a specific single host name ('-cert'
1228 and '-key' remain fallbacks for handshakes without HostName
1229 negotiation). If the unrecogninzed_name alert has to be sent, this by
1230 default is a warning; it becomes fatal with the '-servername_fatal'
1233 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1235 *) Add AES and SSE2 assembly language support to VC++ build.
1238 *) Mitigate attack on final subtraction in Montgomery reduction.
1241 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1242 (which previously caused an internal error).
1245 *) Squeeze another 10% out of IGE mode when in != out.
1248 *) AES IGE mode speedup.
1249 [Dean Gaudet (Google)]
1251 *) Add the Korean symmetric 128-bit cipher SEED (see
1252 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1253 add SEED ciphersuites from RFC 4162:
1255 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1256 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1257 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1258 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1260 To minimize changes between patchlevels in the OpenSSL 0.9.8
1261 series, SEED remains excluded from compilation unless OpenSSL
1262 is configured with 'enable-seed'.
1263 [KISA, Bodo Moeller]
1265 *) Mitigate branch prediction attacks, which can be practical if a
1266 single processor is shared, allowing a spy process to extract
1267 information. For detailed background information, see
1268 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1269 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1270 and Necessary Software Countermeasures"). The core of the change
1271 are new versions BN_div_no_branch() and
1272 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1273 respectively, which are slower, but avoid the security-relevant
1274 conditional branches. These are automatically called by BN_div()
1275 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1276 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1277 remove a conditional branch.
1279 BN_FLG_CONSTTIME is the new name for the previous
1280 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1281 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1282 in the exponent causes BN_mod_exp_mont() to use the alternative
1283 implementation in BN_mod_exp_mont_consttime().) The old name
1284 remains as a deprecated alias.
1286 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1287 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1288 constant-time implementations for more than just exponentiation.
1289 Here too the old name is kept as a deprecated alias.
1291 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1292 the BN_BLINDING structure gets an independent copy of the
1293 modulus. This means that the previous "BIGNUM *m" argument to
1294 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1295 essentially becomes "const BIGNUM *m", although we can't actually
1296 change this in the header file before 0.9.9. It allows
1297 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1298 enable BN_FLG_CONSTTIME.
1300 [Matthew D Wood (Intel Corp)]
1302 *) In the SSL/TLS server implementation, be strict about session ID
1303 context matching (which matters if an application uses a single
1304 external cache for different purposes). Previously,
1305 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1306 set. This did ensure strict client verification, but meant that,
1307 with applications using a single external cache for quite
1308 different requirements, clients could circumvent ciphersuite
1309 restrictions for a given session ID context by starting a session
1310 in a different context.
1313 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1314 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1315 authentication-only ciphersuites.
1318 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1319 not complete and could lead to a possible single byte overflow
1320 (CVE-2007-5135) [Ben Laurie]
1322 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1324 *) Since AES128 and AES256 (and similarly Camellia128 and
1325 Camellia256) share a single mask bit in the logic of
1326 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1327 kludge to work properly if AES128 is available and AES256 isn't
1328 (or if Camellia128 is available and Camellia256 isn't).
1331 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1332 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1333 When a point or a seed is encoded in a BIT STRING, we need to
1334 prevent the removal of trailing zero bits to get the proper DER
1335 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1336 of a NamedBitList, for which trailing 0 bits need to be removed.)
1339 *) Have SSL/TLS server implementation tolerate "mismatched" record
1340 protocol version while receiving ClientHello even if the
1341 ClientHello is fragmented. (The server can't insist on the
1342 particular protocol version it has chosen before the ServerHello
1343 message has informed the client about his choice.)
1346 *) Add RFC 3779 support.
1347 [Rob Austein for ARIN, Ben Laurie]
1349 *) Load error codes if they are not already present instead of using a
1350 static variable. This allows them to be cleanly unloaded and reloaded.
1351 Improve header file function name parsing.
1354 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1355 or CAPABILITY handshake as required by RFCs.
1358 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1360 *) Introduce limits to prevent malicious keys being able to
1361 cause a denial of service. (CVE-2006-2940)
1362 [Steve Henson, Bodo Moeller]
1364 *) Fix ASN.1 parsing of certain invalid structures that can result
1365 in a denial of service. (CVE-2006-2937) [Steve Henson]
1367 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1368 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1370 *) Fix SSL client code which could crash if connecting to a
1371 malicious SSLv2 server. (CVE-2006-4343)
1372 [Tavis Ormandy and Will Drewry, Google Security Team]
1374 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1375 match only those. Before that, "AES256-SHA" would be interpreted
1376 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1377 the same strength classification in 0.9.7h) as we currently only
1378 have a single AES bit in the ciphersuite description bitmap.
1379 That change, however, also applied to ciphersuite strings such as
1380 "RC4-MD5" that intentionally matched multiple ciphersuites --
1381 namely, SSL 2.0 ciphersuites in addition to the more common ones
1382 from SSL 3.0/TLS 1.0.
1384 So we change the selection algorithm again: Naming an explicit
1385 ciphersuite selects this one ciphersuite, and any other similar
1386 ciphersuite (same bitmap) from *other* protocol versions.
1387 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1388 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1390 Since SSL 2.0 does not have any ciphersuites for which the
1391 128/256 bit distinction would be relevant, this works for now.
1392 The proper fix will be to use different bits for AES128 and
1393 AES256, which would have avoided the problems from the beginning;
1394 however, bits are scarce, so we can only do this in a new release
1395 (not just a patchlevel) when we can change the SSL_CIPHER
1396 definition to split the single 'unsigned long mask' bitmap into
1397 multiple values to extend the available space.
1401 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1403 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1404 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1406 *) Add AES IGE and biIGE modes.
1409 *) Change the Unix randomness entropy gathering to use poll() when
1410 possible instead of select(), since the latter has some
1411 undesirable limitations.
1412 [Darryl Miles via Richard Levitte and Bodo Moeller]
1414 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1415 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1416 cannot be implicitly activated as part of, e.g., the "AES" alias.
1417 However, please upgrade to OpenSSL 0.9.9[-dev] for
1418 non-experimental use of the ECC ciphersuites to get TLS extension
1419 support, which is required for curve and point format negotiation
1420 to avoid potential handshake problems.
1423 *) Disable rogue ciphersuites:
1425 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1426 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1427 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1429 The latter two were purportedly from
1430 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1433 Also deactivate the remaining ciphersuites from
1434 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1435 unofficial, and the ID has long expired.
1438 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1439 dual-core machines) and other potential thread-safety issues.
1442 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1443 versions), which is now available for royalty-free use
1444 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1445 Also, add Camellia TLS ciphersuites from RFC 4132.
1447 To minimize changes between patchlevels in the OpenSSL 0.9.8
1448 series, Camellia remains excluded from compilation unless OpenSSL
1449 is configured with 'enable-camellia'.
1452 *) Disable the padding bug check when compression is in use. The padding
1453 bug check assumes the first packet is of even length, this is not
1454 necessarily true if compresssion is enabled and can result in false
1455 positives causing handshake failure. The actual bug test is ancient
1456 code so it is hoped that implementations will either have fixed it by
1457 now or any which still have the bug do not support compression.
1460 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1462 *) When applying a cipher rule check to see if string match is an explicit
1463 cipher suite and only match that one cipher suite if it is.
1466 *) Link in manifests for VC++ if needed.
1467 [Austin Ziegler <halostatue@gmail.com>]
1469 *) Update support for ECC-based TLS ciphersuites according to
1470 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1471 TLS extensions, which are supported starting with the 0.9.9
1472 branch, not in the OpenSSL 0.9.8 branch).
1475 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1476 opaque EVP_CIPHER_CTX handling.
1479 *) Fixes and enhancements to zlib compression code. We now only use
1480 "zlib1.dll" and use the default __cdecl calling convention on Win32
1481 to conform with the standards mentioned here:
1482 http://www.zlib.net/DLL_FAQ.txt
1483 Static zlib linking now works on Windows and the new --with-zlib-include
1484 --with-zlib-lib options to Configure can be used to supply the location
1485 of the headers and library. Gracefully handle case where zlib library
1489 *) Several fixes and enhancements to the OID generation code. The old code
1490 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1491 handle numbers larger than ULONG_MAX, truncated printing and had a
1492 non standard OBJ_obj2txt() behaviour.
1495 *) Add support for building of engines under engine/ as shared libraries
1496 under VC++ build system.
1499 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1500 Hopefully, we will not see any false combination of paths any more.
1503 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1505 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1506 (part of SSL_OP_ALL). This option used to disable the
1507 countermeasure against man-in-the-middle protocol-version
1508 rollback in the SSL 2.0 server implementation, which is a bad
1509 idea. (CVE-2005-2969)
1511 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1512 for Information Security, National Institute of Advanced Industrial
1513 Science and Technology [AIST], Japan)]
1515 *) Add two function to clear and return the verify parameter flags.
1518 *) Keep cipherlists sorted in the source instead of sorting them at
1519 runtime, thus removing the need for a lock.
1522 *) Avoid some small subgroup attacks in Diffie-Hellman.
1523 [Nick Mathewson and Ben Laurie]
1525 *) Add functions for well-known primes.
1528 *) Extended Windows CE support.
1529 [Satoshi Nakamura and Andy Polyakov]
1531 *) Initialize SSL_METHOD structures at compile time instead of during
1532 runtime, thus removing the need for a lock.
1535 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1536 attempting to decrypt each encrypted key in turn. Add support to
1540 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1542 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1545 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1548 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1549 key into the same file any more.
1552 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1555 *) Add -utf8 command line and config file option to 'ca'.
1556 [Stefan <stf@udoma.org]
1558 *) Removed the macro des_crypt(), as it seems to conflict with some
1559 libraries. Use DES_crypt().
1562 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1563 involves renaming the source and generated shared-libs for
1564 both. The engines will accept the corrected or legacy ids
1565 ('ncipher' and '4758_cca' respectively) when binding. NB,
1566 this only applies when building 'shared'.
1567 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1569 *) Add attribute functions to EVP_PKEY structure. Modify
1570 PKCS12_create() to recognize a CSP name attribute and
1571 use it. Make -CSP option work again in pkcs12 utility.
1574 *) Add new functionality to the bn blinding code:
1575 - automatic re-creation of the BN_BLINDING parameters after
1576 a fixed number of uses (currently 32)
1577 - add new function for parameter creation
1578 - introduce flags to control the update behaviour of the
1579 BN_BLINDING parameters
1580 - hide BN_BLINDING structure
1581 Add a second BN_BLINDING slot to the RSA structure to improve
1582 performance when a single RSA object is shared among several
1586 *) Add support for DTLS.
1587 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1589 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1590 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1593 *) Remove buggy and incompletet DH cert support from
1594 ssl/ssl_rsa.c and ssl/s3_both.c
1597 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1598 the apps/openssl applications.
1601 *) Compile clean with "-Wall -Wmissing-prototypes
1602 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1603 DEBUG_SAFESTACK must also be set.
1606 *) Change ./Configure so that certain algorithms can be disabled by default.
1607 The new counterpiece to "no-xxx" is "enable-xxx".
1609 The patented RC5 and MDC2 algorithms will now be disabled unless
1610 "enable-rc5" and "enable-mdc2", respectively, are specified.
1612 (IDEA remains enabled despite being patented. This is because IDEA
1613 is frequently required for interoperability, and there is no license
1614 fee for non-commercial use. As before, "no-idea" can be used to
1615 avoid this algorithm.)
1619 *) Add processing of proxy certificates (see RFC 3820). This work was
1620 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1621 EGEE (Enabling Grids for E-science in Europe).
1624 *) RC4 performance overhaul on modern architectures/implementations, such
1625 as Intel P4, IA-64 and AMD64.
1628 *) New utility extract-section.pl. This can be used specify an alternative
1629 section number in a pod file instead of having to treat each file as
1630 a separate case in Makefile. This can be done by adding two lines to the
1633 =for comment openssl_section:XXX
1635 The blank line is mandatory.
1639 *) New arguments -certform, -keyform and -pass for s_client and s_server
1640 to allow alternative format key and certificate files and passphrase
1644 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1645 update associated structures and add various utility functions.
1647 Add new policy related verify parameters, include policy checking in
1648 standard verify code. Enhance 'smime' application with extra parameters
1649 to support policy checking and print out.
1652 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1653 Nehemiah processors. These extensions support AES encryption in hardware
1654 as well as RNG (though RNG support is currently disabled).
1655 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1657 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1660 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1661 [Andy Polyakov and a number of other people]
1663 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1664 implementation contributed by IBM.
1665 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1667 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1668 exponent rather than 'unsigned long'. There is a corresponding change to
1669 the new 'rsa_keygen' element of the RSA_METHOD structure.
1670 [Jelte Jansen, Geoff Thorpe]
1672 *) Functionality for creating the initial serial number file is now
1673 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1675 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1676 number file to 1, which is bound to cause problems. To avoid
1677 the problems while respecting compatibility between different 0.9.7
1678 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1679 CA.pl for serial number initialization. With the new release 0.9.8,
1680 we can fix the problem directly in the 'ca' utility.)
1683 *) Reduced header interdepencies by declaring more opaque objects in
1684 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1685 give fewer recursive includes, which could break lazy source code - so
1686 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1687 developers should define this symbol when building and using openssl to
1688 ensure they track the recommended behaviour, interfaces, [etc], but
1689 backwards-compatible behaviour prevails when this isn't defined.
1692 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1695 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1696 This will generate a random key of the appropriate length based on the
1697 cipher context. The EVP_CIPHER can provide its own random key generation
1698 routine to support keys of a specific form. This is used in the des and
1699 3des routines to generate a key of the correct parity. Update S/MIME
1700 code to use new functions and hence generate correct parity DES keys.
1701 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1702 valid (weak or incorrect parity).
1705 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1706 as looking them up. This is useful when the verified structure may contain
1707 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1708 present unless the new PKCS7_NO_CRL flag is asserted.
1711 *) Extend ASN1 oid configuration module. It now additionally accepts the
1714 shortName = some long name, 1.2.3.4
1717 *) Reimplemented the BN_CTX implementation. There is now no more static
1718 limitation on the number of variables it can handle nor the depth of the
1719 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1720 information can now expand as required, and rather than having a single
1721 static array of bignums, BN_CTX now uses a linked-list of such arrays
1722 allowing it to expand on demand whilst maintaining the usefulness of
1723 BN_CTX's "bundling".
1726 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1727 to allow all RSA operations to function using a single BN_CTX.
1730 *) Preliminary support for certificate policy evaluation and checking. This
1731 is initially intended to pass the tests outlined in "Conformance Testing
1732 of Relying Party Client Certificate Path Processing Logic" v1.07.
1735 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1736 remained unused and not that useful. A variety of other little bignum
1737 tweaks and fixes have also been made continuing on from the audit (see
1741 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1742 associated ASN1, EVP and SSL functions and old ASN1 macros.
1745 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1746 and this should never fail. So the return value from the use of
1747 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1748 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1751 *) BN_CTX_get() should return zero-valued bignums, providing the same
1752 initialised value as BN_new().
1753 [Geoff Thorpe, suggested by Ulf Möller]
1755 *) Support for inhibitAnyPolicy certificate extension.
1758 *) An audit of the BIGNUM code is underway, for which debugging code is
1759 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1760 is considered valid when processing BIGNUMs, and causes execution to
1761 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1762 further steps are taken to deliberately pollute unused data in BIGNUM
1763 structures to try and expose faulty code further on. For now, openssl will
1764 (in its default mode of operation) continue to tolerate the inconsistent
1765 forms that it has tolerated in the past, but authors and packagers should
1766 consider trying openssl and their own applications when compiled with
1767 these debugging symbols defined. It will help highlight potential bugs in
1768 their own code, and will improve the test coverage for OpenSSL itself. At
1769 some point, these tighter rules will become openssl's default to improve
1770 maintainability, though the assert()s and other overheads will remain only
1771 in debugging configurations. See bn.h for more details.
1772 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1774 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1775 that can only be obtained through BN_CTX_new() (which implicitly
1776 initialises it). The presence of this function only made it possible
1777 to overwrite an existing structure (and cause memory leaks).
1780 *) Because of the callback-based approach for implementing LHASH as a
1781 template type, lh_insert() adds opaque objects to hash-tables and
1782 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1783 to clean up those corresponding objects before destroying the hash table
1784 (and losing the object pointers). So some over-zealous constifications in
1785 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1786 objects as "const" and the lh_doall[_arg] callback wrappers are not
1787 prototyped to have "const" restrictions on the object pointers they are
1788 given (and so aren't required to cast them away any more).
1791 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1792 (speed) prefers to use its own implementation. The two implementations
1793 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1794 its object type properly exposed (MS_TM) instead of casting to/from "char
1795 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1796 aren't necessarily the greatest nomenclatures - but this is what was used
1797 internally to the implementation so I've used that for now.
1800 *) Ensure that deprecated functions do not get compiled when
1801 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1802 the self-tests were still using deprecated key-generation functions so
1803 these have been updated also.
1806 *) Reorganise PKCS#7 code to separate the digest location functionality
1807 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1808 New function PKCS7_set_digest() to set the digest type for PKCS#7
1809 digestedData type. Add additional code to correctly generate the
1810 digestedData type and add support for this type in PKCS7 initialization
1814 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1815 structure of type "other".
1818 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1819 sure the loop does correctly stop and breaking ("division by zero")
1820 modulus operations are not performed. The (pre-generated) prime
1821 table crypto/bn/bn_prime.h was already correct, but it could not be
1822 re-generated on some platforms because of the "division by zero"
1823 situation in the script.
1824 [Ralf S. Engelschall]
1826 *) Update support for ECC-based TLS ciphersuites according to
1827 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1828 SHA-1 now is only used for "small" curves (where the
1829 representation of a field element takes up to 24 bytes); for
1830 larger curves, the field element resulting from ECDH is directly
1831 used as premaster secret.
1832 [Douglas Stebila (Sun Microsystems Laboratories)]
1834 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1835 curve secp160r1 to the tests.
1836 [Douglas Stebila (Sun Microsystems Laboratories)]
1838 *) Add the possibility to load symbols globally with DSO.
1839 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1841 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1842 control of the error stack.
1845 *) Add support for STORE in ENGINE.
1848 *) Add the STORE type. The intention is to provide a common interface
1849 to certificate and key stores, be they simple file-based stores, or
1850 HSM-type store, or LDAP stores, or...
1851 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1854 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1855 pass a list of arguments to any function as well as provide a way
1856 for a function to pass data back to the caller.
1859 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1860 works like BUF_strdup() but can be used to duplicate a portion of
1861 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1865 *) Add the function sk_find_ex() which works like sk_find(), but will
1866 return an index to an element even if an exact match couldn't be
1867 found. The index is guaranteed to point at the element where the
1868 searched-for key would be inserted to preserve sorting order.
1871 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1872 takes an extra flags argument for optional functionality. Currently,
1873 the following flags are defined:
1875 OBJ_BSEARCH_VALUE_ON_NOMATCH
1876 This one gets OBJ_bsearch_ex() to return a pointer to the first
1877 element where the comparing function returns a negative or zero
1880 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1881 This one gets OBJ_bsearch_ex() to return a pointer to the first
1882 element where the comparing function returns zero. This is useful
1883 if there are more than one element where the comparing function
1887 *) Make it possible to create self-signed certificates with 'openssl ca'
1888 in such a way that the self-signed certificate becomes part of the
1889 CA database and uses the same mechanisms for serial number generation
1890 as all other certificate signing. The new flag '-selfsign' enables
1891 this functionality. Adapt CA.sh and CA.pl.in.
1894 *) Add functionality to check the public key of a certificate request
1895 against a given private. This is useful to check that a certificate
1896 request can be signed by that key (self-signing).
1899 *) Make it possible to have multiple active certificates with the same
1900 subject in the CA index file. This is done only if the keyword
1901 'unique_subject' is set to 'no' in the main CA section (default
1902 if 'CA_default') of the configuration file. The value is saved
1903 with the database itself in a separate index attribute file,
1904 named like the index file with '.attr' appended to the name.
1907 *) Generate muti valued AVAs using '+' notation in config files for
1911 *) Support for nameConstraints certificate extension.
1914 *) Support for policyConstraints certificate extension.
1917 *) Support for policyMappings certificate extension.
1920 *) Make sure the default DSA_METHOD implementation only uses its
1921 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1922 and change its own handlers to be NULL so as to remove unnecessary
1923 indirection. This lets alternative implementations fallback to the
1924 default implementation more easily.
1927 *) Support for directoryName in GeneralName related extensions
1931 *) Make it possible to link applications using Makefile.shared.
1932 Make that possible even when linking against static libraries!
1935 *) Support for single pass processing for S/MIME signing. This now
1936 means that S/MIME signing can be done from a pipe, in addition
1937 cleartext signing (multipart/signed type) is effectively streaming
1938 and the signed data does not need to be all held in memory.
1940 This is done with a new flag PKCS7_STREAM. When this flag is set
1941 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1942 is done after the data is output (and digests calculated) in
1943 SMIME_write_PKCS7().
1946 *) Add full support for -rpath/-R, both in shared libraries and
1947 applications, at least on the platforms where it's known how
1951 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1952 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1953 will now compute a table of multiples of the generator that
1954 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1955 faster (notably in the case of a single point multiplication,
1956 scalar * generator).
1957 [Nils Larsch, Bodo Moeller]
1959 *) IPv6 support for certificate extensions. The various extensions
1960 which use the IP:a.b.c.d can now take IPv6 addresses using the
1961 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1965 *) Added an ENGINE that implements RSA by performing private key
1966 exponentiations with the GMP library. The conversions to and from
1967 GMP's mpz_t format aren't optimised nor are any montgomery forms
1968 cached, and on x86 it appears OpenSSL's own performance has caught up.
1969 However there are likely to be other architectures where GMP could
1970 provide a boost. This ENGINE is not built in by default, but it can be
1971 specified at Configure time and should be accompanied by the necessary
1972 linker additions, eg;
1973 ./config -DOPENSSL_USE_GMP -lgmp
1976 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1977 testing availability of engines with "-t" - the old behaviour is
1978 produced by increasing the feature's verbosity with "-tt".
1981 *) ECDSA routines: under certain error conditions uninitialized BN objects
1982 could be freed. Solution: make sure initialization is performed early
1983 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1987 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1988 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1989 software implementations. For DSA and DH, parameter generation can
1990 also be overriden by providing the appropriate method callbacks.
1993 *) Change the "progress" mechanism used in key-generation and
1994 primality testing to functions that take a new BN_GENCB pointer in
1995 place of callback/argument pairs. The new API functions have "_ex"
1996 postfixes and the older functions are reimplemented as wrappers for
1997 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1998 declarations of the old functions to help (graceful) attempts to
1999 migrate to the new functions. Also, the new key-generation API
2000 functions operate on a caller-supplied key-structure and return
2001 success/failure rather than returning a key or NULL - this is to
2002 help make "keygen" another member function of RSA_METHOD etc.
2004 Example for using the new callback interface:
2006 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2010 BN_GENCB_set(&my_cb, my_callback, my_arg);
2012 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2013 /* For the meaning of a, b in calls to my_callback(), see the
2014 * documentation of the function that calls the callback.
2015 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2016 * my_callback should return 1 if it wants BN_is_prime_ex()
2017 * to continue, or 0 to stop.
2022 *) Change the ZLIB compression method to be stateful, and make it
2023 available to TLS with the number defined in
2024 draft-ietf-tls-compression-04.txt.
2027 *) Add the ASN.1 structures and functions for CertificatePair, which
2028 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2030 CertificatePair ::= SEQUENCE {
2031 forward [0] Certificate OPTIONAL,
2032 reverse [1] Certificate OPTIONAL,
2033 -- at least one of the pair shall be present -- }
2035 Also implement the PEM functions to read and write certificate
2036 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2038 This needed to be defined, mostly for the sake of the LDAP
2039 attribute crossCertificatePair, but may prove useful elsewhere as
2043 *) Make it possible to inhibit symlinking of shared libraries in
2044 Makefile.shared, for Cygwin's sake.
2047 *) Extend the BIGNUM API by creating a function
2048 void BN_set_negative(BIGNUM *a, int neg);
2049 and a macro that behave like
2050 int BN_is_negative(const BIGNUM *a);
2052 to avoid the need to access 'a->neg' directly in applications.
2055 *) Implement fast modular reduction for pseudo-Mersenne primes
2056 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2057 EC_GROUP_new_curve_GFp() will now automatically use this
2059 [Nils Larsch <nla@trustcenter.de>]
2061 *) Add new lock type (CRYPTO_LOCK_BN).
2064 *) Change the ENGINE framework to automatically load engines
2065 dynamically from specific directories unless they could be
2066 found to already be built in or loaded. Move all the
2067 current engines except for the cryptodev one to a new
2069 The engines in engines/ are built as shared libraries if
2070 the "shared" options was given to ./Configure or ./config.
2071 Otherwise, they are inserted in libcrypto.a.
2072 /usr/local/ssl/engines is the default directory for dynamic
2073 engines, but that can be overriden at configure time through
2074 the usual use of --prefix and/or --openssldir, and at run
2075 time with the environment variable OPENSSL_ENGINES.
2076 [Geoff Thorpe and Richard Levitte]
2078 *) Add Makefile.shared, a helper makefile to build shared
2079 libraries. Addapt Makefile.org.
2082 *) Add version info to Win32 DLLs.
2083 [Peter 'Luna' Runestig" <peter@runestig.com>]
2085 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2086 can be added using this API to created arbitrary PKCS#12
2087 files while avoiding the low level API.
2089 New options to PKCS12_create(), key or cert can be NULL and
2090 will then be omitted from the output file. The encryption
2091 algorithm NIDs can be set to -1 for no encryption, the mac
2092 iteration count can be set to 0 to omit the mac.
2094 Enhance pkcs12 utility by making the -nokeys and -nocerts
2095 options work when creating a PKCS#12 file. New option -nomac
2096 to omit the mac, NONE can be set for an encryption algorithm.
2097 New code is modified to use the enhanced PKCS12_create()
2098 instead of the low level API.
2101 *) Extend ASN1 encoder to support indefinite length constructed
2102 encoding. This can output sequences tags and octet strings in
2103 this form. Modify pk7_asn1.c to support indefinite length
2104 encoding. This is experimental and needs additional code to
2105 be useful, such as an ASN1 bio and some enhanced streaming
2108 Extend template encode functionality so that tagging is passed
2109 down to the template encoder.
2112 *) Let 'openssl req' fail if an argument to '-newkey' is not
2113 recognized instead of using RSA as a default.
2116 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2117 As these are not official, they are not included in "ALL";
2118 the "ECCdraft" ciphersuite group alias can be used to select them.
2119 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2121 *) Add ECDH engine support.
2122 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2124 *) Add ECDH in new directory crypto/ecdh/.
2125 [Douglas Stebila (Sun Microsystems Laboratories)]
2127 *) Let BN_rand_range() abort with an error after 100 iterations
2128 without success (which indicates a broken PRNG).
2131 *) Change BN_mod_sqrt() so that it verifies that the input value
2132 is really the square of the return value. (Previously,
2133 BN_mod_sqrt would show GIGO behaviour.)
2136 *) Add named elliptic curves over binary fields from X9.62, SECG,
2137 and WAP/WTLS; add OIDs that were still missing.
2139 [Sheueling Chang Shantz and Douglas Stebila
2140 (Sun Microsystems Laboratories)]
2142 *) Extend the EC library for elliptic curves over binary fields
2143 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2146 EC_GF2m_simple_method
2150 EC_GROUP_new_curve_GF2m
2151 EC_GROUP_set_curve_GF2m
2152 EC_GROUP_get_curve_GF2m
2153 EC_POINT_set_affine_coordinates_GF2m
2154 EC_POINT_get_affine_coordinates_GF2m
2155 EC_POINT_set_compressed_coordinates_GF2m
2157 Point compression for binary fields is disabled by default for
2158 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2161 As binary polynomials are represented as BIGNUMs, various members
2162 of the EC_GROUP and EC_POINT data structures can be shared
2163 between the implementations for prime fields and binary fields;
2164 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2165 are essentially identical to their ..._GFp counterparts.
2166 (For simplicity, the '..._GFp' prefix has been dropped from
2167 various internal method names.)
2169 An internal 'field_div' method (similar to 'field_mul' and
2170 'field_sqr') has been added; this is used only for binary fields.
2172 [Sheueling Chang Shantz and Douglas Stebila
2173 (Sun Microsystems Laboratories)]
2175 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2176 through methods ('mul', 'precompute_mult').
2178 The generic implementations (now internally called 'ec_wNAF_mul'
2179 and 'ec_wNAF_precomputed_mult') remain the default if these
2180 methods are undefined.
2182 [Sheueling Chang Shantz and Douglas Stebila
2183 (Sun Microsystems Laboratories)]
2185 *) New function EC_GROUP_get_degree, which is defined through
2186 EC_METHOD. For curves over prime fields, this returns the bit
2187 length of the modulus.
2189 [Sheueling Chang Shantz and Douglas Stebila
2190 (Sun Microsystems Laboratories)]
2192 *) New functions EC_GROUP_dup, EC_POINT_dup.
2193 (These simply call ..._new and ..._copy).
2195 [Sheueling Chang Shantz and Douglas Stebila
2196 (Sun Microsystems Laboratories)]
2198 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2199 Polynomials are represented as BIGNUMs (where the sign bit is not
2200 used) in the following functions [macros]:
2203 BN_GF2m_sub [= BN_GF2m_add]
2204 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2205 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2206 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2208 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2209 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2210 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2211 BN_GF2m_cmp [= BN_ucmp]
2213 (Note that only the 'mod' functions are actually for fields GF(2^m).
2214 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2216 For some functions, an the irreducible polynomial defining a
2217 field can be given as an 'unsigned int[]' with strictly
2218 decreasing elements giving the indices of those bits that are set;
2219 i.e., p[] represents the polynomial
2220 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2222 p[0] > p[1] > ... > p[k] = 0.
2223 This applies to the following functions:
2228 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2229 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2231 BN_GF2m_mod_sqrt_arr
2232 BN_GF2m_mod_solve_quad_arr
2236 Conversion can be performed by the following functions:
2241 bntest.c has additional tests for binary polynomial arithmetic.
2243 Two implementations for BN_GF2m_mod_div() are available.
2244 The default algorithm simply uses BN_GF2m_mod_inv() and
2245 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2246 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2247 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2249 [Sheueling Chang Shantz and Douglas Stebila
2250 (Sun Microsystems Laboratories)]
2252 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2253 functionality is disabled at compile-time.
2254 [Douglas Stebila <douglas.stebila@sun.com>]
2256 *) Change default behaviour of 'openssl asn1parse' so that more
2257 information is visible when viewing, e.g., a certificate:
2259 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2260 mode the content of non-printable OCTET STRINGs is output in a
2261 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2262 avoid the appearance of a printable string.
2263 [Nils Larsch <nla@trustcenter.de>]
2265 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2267 EC_GROUP_set_asn1_flag()
2268 EC_GROUP_get_asn1_flag()
2269 EC_GROUP_set_point_conversion_form()
2270 EC_GROUP_get_point_conversion_form()
2271 These control ASN1 encoding details:
2272 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2273 has been set to OPENSSL_EC_NAMED_CURVE.
2274 - Points are encoded in uncompressed form by default; options for
2275 asn1_for are as for point2oct, namely
2276 POINT_CONVERSION_COMPRESSED
2277 POINT_CONVERSION_UNCOMPRESSED
2278 POINT_CONVERSION_HYBRID
2280 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2283 EC_GROUP_get0_seed()
2284 EC_GROUP_get_seed_len()
2285 This is used only for ASN1 purposes (so far).
2286 [Nils Larsch <nla@trustcenter.de>]
2288 *) Add 'field_type' member to EC_METHOD, which holds the NID
2289 of the appropriate field type OID. The new function
2290 EC_METHOD_get_field_type() returns this value.
2291 [Nils Larsch <nla@trustcenter.de>]
2296 EC_POINT_point2hex()
2297 EC_POINT_hex2point()
2298 providing useful interfaces to EC_POINT_point2oct() and
2299 EC_POINT_oct2point().
2300 [Nils Larsch <nla@trustcenter.de>]
2302 *) Change internals of the EC library so that the functions
2303 EC_GROUP_set_generator()
2304 EC_GROUP_get_generator()
2305 EC_GROUP_get_order()
2306 EC_GROUP_get_cofactor()
2307 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2308 to methods, which would lead to unnecessary code duplication when
2309 adding different types of curves.
2310 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2312 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2313 arithmetic, and such that modified wNAFs are generated
2314 (which avoid length expansion in many cases).
2317 *) Add a function EC_GROUP_check_discriminant() (defined via
2318 EC_METHOD) that verifies that the curve discriminant is non-zero.
2320 Add a function EC_GROUP_check() that makes some sanity tests
2321 on a EC_GROUP, its generator and order. This includes
2322 EC_GROUP_check_discriminant().
2323 [Nils Larsch <nla@trustcenter.de>]
2325 *) Add ECDSA in new directory crypto/ecdsa/.
2327 Add applications 'openssl ecparam' and 'openssl ecdsa'
2328 (these are based on 'openssl dsaparam' and 'openssl dsa').
2330 ECDSA support is also included in various other files across the
2331 library. Most notably,
2332 - 'openssl req' now has a '-newkey ecdsa:file' option;
2333 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2334 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2335 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2336 them suitable for ECDSA where domain parameters must be
2337 extracted before the specific public key;
2338 - ECDSA engine support has been added.
2339 [Nils Larsch <nla@trustcenter.de>]
2341 *) Include some named elliptic curves, and add OIDs from X9.62,
2342 SECG, and WAP/WTLS. Each curve can be obtained from the new
2344 EC_GROUP_new_by_curve_name(),
2345 and the list of available named curves can be obtained with
2346 EC_get_builtin_curves().
2347 Also add a 'curve_name' member to EC_GROUP objects, which can be
2349 EC_GROUP_set_curve_name()
2350 EC_GROUP_get_curve_name()
2351 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2353 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2354 was actually never needed) and in BN_mul(). The removal in BN_mul()
2355 required a small change in bn_mul_part_recursive() and the addition
2356 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2357 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2358 bn_sub_words() and bn_add_words() except they take arrays with
2362 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
2364 *) In the SSL/TLS server implementation, be strict about session ID
2365 context matching (which matters if an application uses a single
2366 external cache for different purposes). Previously,
2367 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2368 set. This did ensure strict client verification, but meant that,
2369 with applications using a single external cache for quite
2370 different requirements, clients could circumvent ciphersuite
2371 restrictions for a given session ID context by starting a session
2372 in a different context.
2375 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2377 *) Cleanse PEM buffers before freeing them since they may contain
2379 [Benjamin Bennett <ben@psc.edu>]
2381 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2382 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2383 authentication-only ciphersuites.
2386 *) Since AES128 and AES256 share a single mask bit in the logic of
2387 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2388 kludge to work properly if AES128 is available and AES256 isn't.
2391 *) Expand security boundary to match 1.1.1 module.
2394 *) Remove redundant features: hash file source, editing of test vectors
2395 modify fipsld to use external fips_premain.c signature.
2398 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2399 run algorithm test programs.
2402 *) Make algorithm test programs more tolerant of whitespace.
2405 *) Have SSL/TLS server implementation tolerate "mismatched" record
2406 protocol version while receiving ClientHello even if the
2407 ClientHello is fragmented. (The server can't insist on the
2408 particular protocol version it has chosen before the ServerHello
2409 message has informed the client about his choice.)
2412 *) Load error codes if they are not already present instead of using a
2413 static variable. This allows them to be cleanly unloaded and reloaded.
2416 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2418 *) Introduce limits to prevent malicious keys being able to
2419 cause a denial of service. (CVE-2006-2940)
2420 [Steve Henson, Bodo Moeller]
2422 *) Fix ASN.1 parsing of certain invalid structures that can result
2423 in a denial of service. (CVE-2006-2937) [Steve Henson]
2425 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2426 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2428 *) Fix SSL client code which could crash if connecting to a
2429 malicious SSLv2 server. (CVE-2006-4343)
2430 [Tavis Ormandy and Will Drewry, Google Security Team]
2432 *) Change ciphersuite string processing so that an explicit
2433 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2434 will no longer include "AES128-SHA"), and any other similar
2435 ciphersuite (same bitmap) from *other* protocol versions (so that
2436 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2437 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2438 changes from 0.9.8b and 0.9.8d.
2441 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2443 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2444 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2446 *) Change the Unix randomness entropy gathering to use poll() when
2447 possible instead of select(), since the latter has some
2448 undesirable limitations.
2449 [Darryl Miles via Richard Levitte and Bodo Moeller]
2451 *) Disable rogue ciphersuites:
2453 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2454 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2455 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2457 The latter two were purportedly from
2458 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2461 Also deactive the remaining ciphersuites from
2462 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2463 unofficial, and the ID has long expired.
2466 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2467 dual-core machines) and other potential thread-safety issues.
2470 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2472 *) Adapt fipsld and the build system to link against the validated FIPS
2473 module in FIPS mode.
2476 *) Fixes for VC++ 2005 build under Windows.
2479 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2480 from a Windows bash shell such as MSYS. It is autodetected from the
2481 "config" script when run from a VC++ environment. Modify standard VC++
2482 build to use fipscanister.o from the GNU make build.
2485 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2487 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2488 The value now differs depending on if you build for FIPS or not.
2489 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2490 safely run with a non-FIPSed libcrypto, as it may crash because of
2491 the difference induced by this change.
2494 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2496 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2497 (part of SSL_OP_ALL). This option used to disable the
2498 countermeasure against man-in-the-middle protocol-version
2499 rollback in the SSL 2.0 server implementation, which is a bad
2500 idea. (CVE-2005-2969)
2502 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2503 for Information Security, National Institute of Advanced Industrial
2504 Science and Technology [AIST], Japan)]
2506 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2507 mainly for FIPS compliance and not fully integrated at this stage.
2510 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2511 the exponentiation using a fixed-length exponent. (Otherwise,
2512 the information leaked through timing could expose the secret key
2513 after many signatures; cf. Bleichenbacher's attack on DSA with
2517 *) Make a new fixed-window mod_exp implementation the default for
2518 RSA, DSA, and DH private-key operations so that the sequence of
2519 squares and multiplies and the memory access pattern are
2520 independent of the particular secret key. This will mitigate
2521 cache-timing and potential related attacks.
2523 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2524 and this is automatically used by BN_mod_exp_mont() if the new flag
2525 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2526 will use this BN flag for private exponents unless the flag
2527 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2528 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2530 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2532 *) Change the client implementation for SSLv23_method() and
2533 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2534 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2535 (Previously, the SSL 2.0 backwards compatible Client Hello
2536 message format would be used even with SSL_OP_NO_SSLv2.)
2539 *) Add support for smime-type MIME parameter in S/MIME messages which some
2543 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2544 a threadsafe manner. Modify rsa code to use new function and add calls
2545 to dsa and dh code (which had race conditions before).
2548 *) Include the fixed error library code in the C error file definitions
2549 instead of fixing them up at runtime. This keeps the error code
2550 structures constant.
2553 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2555 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2558 *) Fixes for newer kerberos headers. NB: the casts are needed because
2559 the 'length' field is signed on one version and unsigned on another
2560 with no (?) obvious way to tell the difference, without these VC++
2561 complains. Also the "definition" of FAR (blank) is no longer included
2562 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2563 some needed definitions.
2566 *) Undo Cygwin change.
2569 *) Added support for proxy certificates according to RFC 3820.
2570 Because they may be a security thread to unaware applications,
2571 they must be explicitely allowed in run-time. See
2572 docs/HOWTO/proxy_certificates.txt for further information.
2575 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2577 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2578 server and client random values. Previously
2579 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2580 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2582 This change has negligible security impact because:
2584 1. Server and client random values still have 24 bytes of pseudo random
2587 2. Server and client random values are sent in the clear in the initial
2590 3. The master secret is derived using the premaster secret (48 bytes in
2591 size for static RSA ciphersuites) as well as client server and random
2594 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2597 [Stephen Henson, reported by UK NISCC]
2599 *) Use Windows randomness collection on Cygwin.
2602 *) Fix hang in EGD/PRNGD query when communication socket is closed
2603 prematurely by EGD/PRNGD.
2604 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2606 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2609 *) Back-port of selected performance improvements from development
2610 branch, as well as improved support for PowerPC platforms.
2613 *) Add lots of checks for memory allocation failure, error codes to indicate
2614 failure and freeing up memory if a failure occurs.
2615 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2617 *) Add new -passin argument to dgst.
2620 *) Perform some character comparisons of different types in X509_NAME_cmp:
2621 this is needed for some certificates that reencode DNs into UTF8Strings
2622 (in violation of RFC3280) and can't or wont issue name rollover
2626 *) Make an explicit check during certificate validation to see that
2627 the CA setting in each certificate on the chain is correct. As a
2628 side effect always do the following basic checks on extensions,
2629 not just when there's an associated purpose to the check:
2631 - if there is an unhandled critical extension (unless the user
2632 has chosen to ignore this fault)
2633 - if the path length has been exceeded (if one is set at all)
2634 - that certain extensions fit the associated purpose (if one has
2638 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2640 *) Avoid a race condition when CRLs are checked in a multi threaded
2641 environment. This would happen due to the reordering of the revoked
2642 entries during signature checking and serial number lookup. Now the
2643 encoding is cached and the serial number sort performed under a lock.
2644 Add new STACK function sk_is_sorted().
2647 *) Add Delta CRL to the extension code.
2650 *) Various fixes to s3_pkt.c so alerts are sent properly.
2651 [David Holmes <d.holmes@f5.com>]
2653 *) Reduce the chances of duplicate issuer name and serial numbers (in
2654 violation of RFC3280) using the OpenSSL certificate creation utilities.
2655 This is done by creating a random 64 bit value for the initial serial
2656 number when a serial number file is created or when a self signed
2657 certificate is created using 'openssl req -x509'. The initial serial
2658 number file is created using 'openssl x509 -next_serial' in CA.pl
2659 rather than being initialized to 1.
2662 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2664 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2665 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2666 [Joe Orton, Steve Henson]
2668 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2670 [Joe Orton, Steve Henson]
2672 *) Make it possible to have multiple active certificates with the same
2673 subject in the CA index file. This is done only if the keyword
2674 'unique_subject' is set to 'no' in the main CA section (default
2675 if 'CA_default') of the configuration file. The value is saved
2676 with the database itself in a separate index attribute file,
2677 named like the index file with '.attr' appended to the name.
2680 *) X509 verify fixes. Disable broken certificate workarounds when
2681 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2682 keyUsage extension present. Don't accept CRLs with unhandled critical
2683 extensions: since verify currently doesn't process CRL extensions this
2684 rejects a CRL with *any* critical extensions. Add new verify error codes
2688 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2689 A clarification of RFC2560 will require the use of OCTET STRINGs and
2690 some implementations cannot handle the current raw format. Since OpenSSL
2691 copies and compares OCSP nonces as opaque blobs without any attempt at
2692 parsing them this should not create any compatibility issues.
2695 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2696 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2697 this HMAC (and other) operations are several times slower than OpenSSL
2701 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2702 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2704 *) Use the correct content when signing type "other".
2707 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2709 *) Fix various bugs revealed by running the NISCC test suite:
2711 Stop out of bounds reads in the ASN1 code when presented with
2712 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2714 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2716 If verify callback ignores invalid public key errors don't try to check
2717 certificate signature with the NULL public key.
2721 *) New -ignore_err option in ocsp application to stop the server
2722 exiting on the first error in a request.
2725 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2726 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2730 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2731 extra data after the compression methods not only for TLS 1.0
2732 but also for SSL 3.0 (as required by the specification).
2733 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2735 *) Change X509_certificate_type() to mark the key as exported/exportable
2736 when it's 512 *bits* long, not 512 bytes.
2739 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2740 blocks during encryption.
2743 *) Various fixes to base64 BIO and non blocking I/O. On write
2744 flushes were not handled properly if the BIO retried. On read
2745 data was not being buffered properly and had various logic bugs.
2746 This also affects blocking I/O when the data being decoded is a
2750 *) Various S/MIME bugfixes and compatibility changes:
2751 output correct application/pkcs7 MIME type if
2752 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2753 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2754 of files as .eml work). Correctly handle very long lines in MIME
2758 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2760 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2761 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2762 a protocol version number mismatch like a decryption error
2763 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2766 *) Turn on RSA blinding by default in the default implementation
2767 to avoid a timing attack. Applications that don't want it can call
2768 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2769 They would be ill-advised to do so in most cases.
2770 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2772 *) Change RSA blinding code so that it works when the PRNG is not
2773 seeded (in this case, the secret RSA exponent is abused as
2774 an unpredictable seed -- if it is not unpredictable, there
2775 is no point in blinding anyway). Make RSA blinding thread-safe
2776 by remembering the creator's thread ID in rsa->blinding and
2777 having all other threads use local one-time blinding factors
2778 (this requires more computation than sharing rsa->blinding, but
2779 avoids excessive locking; and if an RSA object is not shared
2780 between threads, blinding will still be very fast).
2783 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2784 ENGINE as defaults for all supported algorithms irrespective of
2785 the 'flags' parameter. 'flags' is now honoured, so applications
2786 should make sure they are passing it correctly.
2789 *) Target "mingw" now allows native Windows code to be generated in
2790 the Cygwin environment as well as with the MinGW compiler.
2793 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2795 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2796 via timing by performing a MAC computation even if incorrrect
2797 block cipher padding has been found. This is a countermeasure
2798 against active attacks where the attacker has to distinguish
2799 between bad padding and a MAC verification error. (CVE-2003-0078)
2801 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2802 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2803 Martin Vuagnoux (EPFL, Ilion)]
2805 *) Make the no-err option work as intended. The intention with no-err
2806 is not to have the whole error stack handling routines removed from
2807 libcrypto, it's only intended to remove all the function name and
2808 reason texts, thereby removing some of the footprint that may not
2809 be interesting if those errors aren't displayed anyway.
2811 NOTE: it's still possible for any application or module to have it's
2812 own set of error texts inserted. The routines are there, just not
2813 used by default when no-err is given.
2816 *) Add support for FreeBSD on IA64.
2817 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2819 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2820 Kerberos function mit_des_cbc_cksum(). Before this change,
2821 the value returned by DES_cbc_cksum() was like the one from
2822 mit_des_cbc_cksum(), except the bytes were swapped.
2823 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2825 *) Allow an application to disable the automatic SSL chain building.
2826 Before this a rather primitive chain build was always performed in
2827 ssl3_output_cert_chain(): an application had no way to send the
2828 correct chain if the automatic operation produced an incorrect result.
2830 Now the chain builder is disabled if either:
2832 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2834 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2836 The reasoning behind this is that an application would not want the
2837 auto chain building to take place if extra chain certificates are
2838 present and it might also want a means of sending no additional
2839 certificates (for example the chain has two certificates and the
2843 *) Add the possibility to build without the ENGINE framework.
2844 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2846 *) Under Win32 gmtime() can return NULL: check return value in
2847 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2850 *) DSA routines: under certain error conditions uninitialized BN objects
2851 could be freed. Solution: make sure initialization is performed early
2852 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2853 Nils Larsch <nla@trustcenter.de> via PR#459)
2856 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2857 checked on reconnect on the client side, therefore session resumption
2858 could still fail with a "ssl session id is different" error. This
2859 behaviour is masked when SSL_OP_ALL is used due to
2860 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2861 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2862 followup to PR #377.
2865 *) IA-32 assembler support enhancements: unified ELF targets, support
2866 for SCO/Caldera platforms, fix for Cygwin shared build.
2869 *) Add support for FreeBSD on sparc64. As a consequence, support for
2870 FreeBSD on non-x86 processors is separate from x86 processors on
2871 the config script, much like the NetBSD support.
2872 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2874 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2876 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2879 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2880 code (06) was taken as the first octet of the session ID and the last
2881 octet was ignored consequently. As a result SSLv2 client side session
2882 caching could not have worked due to the session ID mismatch between
2884 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2888 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2889 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2893 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2894 seems that in spite of existing for more than a year, many application
2895 author have done nothing to provide the necessary callbacks, which
2896 means that this particular engine will not work properly anywhere.
2897 This is a very unfortunate situation which forces us, in the name
2898 of usability, to give the hw_ncipher.c a static lock, which is part
2900 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2901 appear in 0.9.8 or later. We EXPECT application authors to have
2902 dealt properly with this when 0.9.8 is released (unless we actually
2903 make such changes in the libcrypto locking code that changes will
2904 have to be made anyway).
2907 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2908 octets have been read, EOF or an error occurs. Without this change
2909 some truncated ASN1 structures will not produce an error.
2912 *) Disable Heimdal support, since it hasn't been fully implemented.
2913 Still give the possibility to force the use of Heimdal, but with
2914 warnings and a request that patches get sent to openssl-dev.
2917 *) Add the VC-CE target, introduce the WINCE sysname, and add
2918 INSTALL.WCE and appropriate conditionals to make it build.
2919 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2921 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2922 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2923 edit numbers of the version.
2924 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2926 *) Introduce safe string copy and catenation functions
2927 (BUF_strlcpy() and BUF_strlcat()).
2928 [Ben Laurie (CHATS) and Richard Levitte]
2930 *) Avoid using fixed-size buffers for one-line DNs.
2931 [Ben Laurie (CHATS)]
2933 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2934 resizing buffers containing secrets, and use where appropriate.
2935 [Ben Laurie (CHATS)]
2937 *) Avoid using fixed size buffers for configuration file location.
2938 [Ben Laurie (CHATS)]
2940 *) Avoid filename truncation for various CA files.
2941 [Ben Laurie (CHATS)]
2943 *) Use sizeof in preference to magic numbers.
2944 [Ben Laurie (CHATS)]
2946 *) Avoid filename truncation in cert requests.
2947 [Ben Laurie (CHATS)]
2949 *) Add assertions to check for (supposedly impossible) buffer
2951 [Ben Laurie (CHATS)]
2953 *) Don't cache truncated DNS entries in the local cache (this could
2954 potentially lead to a spoofing attack).
2955 [Ben Laurie (CHATS)]
2957 *) Fix various buffers to be large enough for hex/decimal
2958 representations in a platform independent manner.
2959 [Ben Laurie (CHATS)]
2961 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2962 resizing buffers containing secrets, and use where appropriate.
2963 [Ben Laurie (CHATS)]
2965 *) Add BIO_indent() to avoid much slightly worrying code to do
2967 [Ben Laurie (CHATS)]
2969 *) Convert sprintf()/BIO_puts() to BIO_printf().
2970 [Ben Laurie (CHATS)]
2972 *) buffer_gets() could terminate with the buffer only half
2974 [Ben Laurie (CHATS)]
2976 *) Add assertions to prevent user-supplied crypto functions from
2977 overflowing internal buffers by having large block sizes, etc.
2978 [Ben Laurie (CHATS)]
2980 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2982 [Ben Laurie (CHATS)]
2984 *) Eliminate unused copy of key in RC4.
2985 [Ben Laurie (CHATS)]
2987 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2988 [Ben Laurie (CHATS)]
2990 *) Fix off-by-one error in EGD path.
2991 [Ben Laurie (CHATS)]
2993 *) If RANDFILE path is too long, ignore instead of truncating.
2994 [Ben Laurie (CHATS)]
2996 *) Eliminate unused and incorrectly sized X.509 structure
2998 [Ben Laurie (CHATS)]
3000 *) Eliminate unused and dangerous function knumber().
3001 [Ben Laurie (CHATS)]
3003 *) Eliminate unused and dangerous structure, KSSL_ERR.
3004 [Ben Laurie (CHATS)]
3006 *) Protect against overlong session ID context length in an encoded
3007 session object. Since these are local, this does not appear to be
3009 [Ben Laurie (CHATS)]
3011 *) Change from security patch (see 0.9.6e below) that did not affect
3012 the 0.9.6 release series:
3014 Remote buffer overflow in SSL3 protocol - an attacker could
3015 supply an oversized master key in Kerberos-enabled versions.
3017 [Ben Laurie (CHATS)]
3019 *) Change the SSL kerb5 codes to match RFC 2712.
3022 *) Make -nameopt work fully for req and add -reqopt switch.
3023 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3025 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3026 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3028 *) Make sure tests can be performed even if the corresponding algorithms
3029 have been removed entirely. This was also the last step to make
3030 OpenSSL compilable with DJGPP under all reasonable conditions.
3031 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3033 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3034 to allow version independent disabling of normally unselected ciphers,
3035 which may be activated as a side-effect of selecting a single cipher.
3037 (E.g., cipher list string "RSA" enables ciphersuites that are left
3038 out of "ALL" because they do not provide symmetric encryption.
3039 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3040 [Lutz Jaenicke, Bodo Moeller]
3042 *) Add appropriate support for separate platform-dependent build
3043 directories. The recommended way to make a platform-dependent
3044 build directory is the following (tested on Linux), maybe with
3047 # Place yourself outside of the OpenSSL source tree. In
3048 # this example, the environment variable OPENSSL_SOURCE
3049 # is assumed to contain the absolute OpenSSL source directory.
3050 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3051 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3052 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3053 mkdir -p `dirname $F`
3054 ln -s $OPENSSL_SOURCE/$F $F
3057 To be absolutely sure not to disturb the source tree, a "make clean"
3058 is a good thing. If it isn't successfull, don't worry about it,
3059 it probably means the source directory is very clean.
3062 *) Make sure any ENGINE control commands make local copies of string
3063 pointers passed to them whenever necessary. Otherwise it is possible
3064 the caller may have overwritten (or deallocated) the original string
3065 data when a later ENGINE operation tries to use the stored values.
3066 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3068 *) Improve diagnostics in file reading and command-line digests.
3069 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3071 *) Add AES modes CFB and OFB to the object database. Correct an
3072 error in AES-CFB decryption.
3075 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3076 allows existing EVP_CIPHER_CTX structures to be reused after
3077 calling EVP_*Final(). This behaviour is used by encryption
3078 BIOs and some applications. This has the side effect that
3079 applications must explicitly clean up cipher contexts with
3080 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3083 *) Check the values of dna and dnb in bn_mul_recursive before calling
3084 bn_mul_comba (a non zero value means the a or b arrays do not contain
3085 n2 elements) and fallback to bn_mul_normal if either is not zero.
3088 *) Fix escaping of non-ASCII characters when using the -subj option
3089 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3092 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3093 form for "surname", serialNumber has no short form.
3094 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3095 therefore remove "mail" short name for "internet 7".
3096 The OID for unique identifiers in X509 certificates is
3097 x500UniqueIdentifier, not uniqueIdentifier.
3098 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3101 *) Add an "init" command to the ENGINE config module and auto initialize
3102 ENGINEs. Without any "init" command the ENGINE will be initialized
3103 after all ctrl commands have been executed on it. If init=1 the
3104 ENGINE is initailized at that point (ctrls before that point are run
3105 on the uninitialized ENGINE and after on the initialized one). If
3106 init=0 then the ENGINE will not be iniatialized at all.
3109 *) Fix the 'app_verify_callback' interface so that the user-defined
3110 argument is actually passed to the callback: In the
3111 SSL_CTX_set_cert_verify_callback() prototype, the callback
3112 declaration has been changed from
3115 int (*cb)(X509_STORE_CTX *,void *);
3116 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3117 i=s->ctx->app_verify_callback(&ctx)
3118 has been changed into
3119 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3121 To update applications using SSL_CTX_set_cert_verify_callback(),
3122 a dummy argument can be added to their callback functions.
3123 [D. K. Smetters <smetters@parc.xerox.com>]
3125 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3126 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3128 *) Add and OPENSSL_LOAD_CONF define which will cause
3129 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3130 This allows older applications to transparently support certain
3131 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3132 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3133 load the config file and OPENSSL_add_all_algorithms_conf() which will
3134 always load it have also been added.
3137 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3138 Adjust NIDs and EVP layer.
3139 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3141 *) Config modules support in openssl utility.
3143 Most commands now load modules from the config file,
3144 though in a few (such as version) this isn't done
3145 because it couldn't be used for anything.
3147 In the case of ca and req the config file used is
3148 the same as the utility itself: that is the -config
3149 command line option can be used to specify an
3153 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3154 use "openssl_conf" if filename is NULL use default openssl config file.
3157 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3158 config section name. Add a new flag to tolerate a missing config file
3159 and move code to CONF_modules_load_file().
3162 *) Support for crypto accelerator cards from Accelerated Encryption
3163 Processing, www.aep.ie. (Use engine 'aep')
3164 The support was copied from 0.9.6c [engine] and adapted/corrected
3165 to work with the new engine framework.
3166 [AEP Inc. and Richard Levitte]
3168 *) Support for SureWare crypto accelerator cards from Baltimore
3169 Technologies. (Use engine 'sureware')
3170 The support was copied from 0.9.6c [engine] and adapted
3171 to work with the new engine framework.
3174 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3175 make the newer ENGINE framework commands for the CHIL engine work.
3176 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3178 *) Make it possible to produce shared libraries on ReliantUNIX.
3179 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3181 *) Add the configuration target debug-linux-ppro.
3182 Make 'openssl rsa' use the general key loading routines
3183 implemented in apps.c, and make those routines able to
3184 handle the key format FORMAT_NETSCAPE and the variant
3186 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3188 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3189 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3191 *) Add -keyform to rsautl, and document -engine.
3192 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3194 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3195 BIO_R_NO_SUCH_FILE error code rather than the generic
3196 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3199 *) Add new functions
3201 ERR_peek_last_error_line
3202 ERR_peek_last_error_line_data.
3203 These are similar to
3206 ERR_peek_error_line_data,
3207 but report on the latest error recorded rather than the first one
3208 still in the error queue.
3209 [Ben Laurie, Bodo Moeller]
3211 *) default_algorithms option in ENGINE config module. This allows things
3213 default_algorithms = ALL
3214 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3217 *) Prelminary ENGINE config module.
3220 *) New experimental application configuration code.
3223 *) Change the AES code to follow the same name structure as all other
3224 symmetric ciphers, and behave the same way. Move everything to
3225 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3226 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3228 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3229 [Ben Laurie and Theo de Raadt]
3231 *) Add option to output public keys in req command.
3232 [Massimiliano Pala madwolf@openca.org]
3234 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3235 (up to about 10% better than before for P-192 and P-224).
3238 *) New functions/macros
3240 SSL_CTX_set_msg_callback(ctx, cb)
3241 SSL_CTX_set_msg_callback_arg(ctx, arg)
3242 SSL_set_msg_callback(ssl, cb)
3243 SSL_set_msg_callback_arg(ssl, arg)
3245 to request calling a callback function
3247 void cb(int write_p, int version, int content_type,
3248 const void *buf, size_t len, SSL *ssl, void *arg)
3250 whenever a protocol message has been completely received
3251 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3252 protocol version according to which the SSL library interprets
3253 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3254 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3255 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3256 specification (change_cipher_spec(20), alert(21), handshake(22)).
3257 'buf' and 'len' point to the actual message, 'ssl' to the
3258 SSL object, and 'arg' is the application-defined value set by
3259 SSL[_CTX]_set_msg_callback_arg().
3261 'openssl s_client' and 'openssl s_server' have new '-msg' options
3262 to enable a callback that displays all protocol messages.
3265 *) Change the shared library support so shared libraries are built as
3266 soon as the corresponding static library is finished, and thereby get
3267 openssl and the test programs linked against the shared library.
3268 This still only happens when the keyword "shard" has been given to
3269 the configuration scripts.
3271 NOTE: shared library support is still an experimental thing, and
3272 backward binary compatibility is still not guaranteed.
3273 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3275 *) Add support for Subject Information Access extension.
3276 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3278 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3279 additional bytes when new memory had to be allocated, not just
3280 when reusing an existing buffer.
3283 *) New command line and configuration option 'utf8' for the req command.
3284 This allows field values to be specified as UTF8 strings.
3287 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3288 runs for the former and machine-readable output for the latter.
3291 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3292 of the e-mail address in the DN (i.e., it will go into a certificate
3293 extension only). The new configuration file option 'email_in_dn = no'
3294 has the same effect.
3295 [Massimiliano Pala madwolf@openca.org]
3297 *) Change all functions with names starting with des_ to be starting
3298 with DES_ instead. Add wrappers that are compatible with libdes,
3299 but are named _ossl_old_des_*. Finally, add macros that map the
3300 des_* symbols to the corresponding _ossl_old_des_* if libdes
3301 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3302 desired, the des_* symbols will be mapped to DES_*, with one
3305 Since we provide two compatibility mappings, the user needs to
3306 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3307 compatibility is desired. The default (i.e., when that macro
3308 isn't defined) is OpenSSL 0.9.6c compatibility.
3310 There are also macros that enable and disable the support of old
3311 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3312 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3313 are defined, the default will apply: to support the old des routines.
3315 In either case, one must include openssl/des.h to get the correct
3316 definitions. Do not try to just include openssl/des_old.h, that
3319 NOTE: This is a major break of an old API into a new one. Software
3320 authors are encouraged to switch to the DES_ style functions. Some
3321 time in the future, des_old.h and the libdes compatibility functions
3322 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3323 default), and then completely removed.
3326 *) Test for certificates which contain unsupported critical extensions.
3327 If such a certificate is found during a verify operation it is
3328 rejected by default: this behaviour can be overridden by either
3329 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3330 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3331 X509_supported_extension() has also been added which returns 1 if a
3332 particular extension is supported.
3335 *) Modify the behaviour of EVP cipher functions in similar way to digests
3336 to retain compatibility with existing code.
3339 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3340 compatibility with existing code. In particular the 'ctx' parameter does
3341 not have to be to be initialized before the call to EVP_DigestInit() and
3342 it is tidied up after a call to EVP_DigestFinal(). New function
3343 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3344 EVP_MD_CTX_copy() changed to not require the destination to be
3345 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3346 requires the destination to be valid.
3348 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3349 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3352 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3353 so that complete 'Handshake' protocol structures are kept in memory
3354 instead of overwriting 'msg_type' and 'length' with 'body' data.
3357 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3358 [Massimo Santin via Richard Levitte]
3360 *) Major restructuring to the underlying ENGINE code. This includes
3361 reduction of linker bloat, separation of pure "ENGINE" manipulation
3362 (initialisation, etc) from functionality dealing with implementations
3363 of specific crypto iterfaces. This change also introduces integrated
3364 support for symmetric ciphers and digest implementations - so ENGINEs
3365 can now accelerate these by providing EVP_CIPHER and EVP_MD
3366 implementations of their own. This is detailed in crypto/engine/README
3367 as it couldn't be adequately described here. However, there are a few
3368 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3369 were changed in the original introduction of ENGINE code have now
3370 reverted back - the hooking from this code to ENGINE is now a good
3371 deal more passive and at run-time, operations deal directly with
3372 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3373 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3374 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3375 they were not being used by the framework as there is no concept of a
3376 BIGNUM_METHOD and they could not be generalised to the new
3377 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3378 ENGINE_cpy() has been removed as it cannot be consistently defined in
3382 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3385 *) Change mkdef.pl to sort symbols that get the same entry number,
3386 and make sure the automatically generated functions ERR_load_*
3387 become part of libeay.num as well.
3390 *) New function SSL_renegotiate_pending(). This returns true once
3391 renegotiation has been requested (either SSL_renegotiate() call
3392 or HelloRequest/ClientHello receveived from the peer) and becomes
3393 false once a handshake has been completed.
3394 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3395 sends a HelloRequest, but does not ensure that a handshake takes
3396 place. SSL_renegotiate_pending() is useful for checking if the
3397 client has followed the request.)
3400 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3401 By default, clients may request session resumption even during
3402 renegotiation (if session ID contexts permit); with this option,
3403 session resumption is possible only in the first handshake.
3405 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3406 more bits available for options that should not be part of
3407 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3410 *) Add some demos for certificate and certificate request creation.
3413 *) Make maximum certificate chain size accepted from the peer application
3414 settable (SSL*_get/set_max_cert_list()), as proposed by
3415 "Douglas E. Engert" <deengert@anl.gov>.
3418 *) Add support for shared libraries for Unixware-7
3419 (Boyd Lynn Gerber <gerberb@zenez.com>).
3422 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3423 be done prior to destruction. Use this to unload error strings from
3424 ENGINEs that load their own error strings. NB: This adds two new API
3425 functions to "get" and "set" this destroy handler in an ENGINE.
3428 *) Alter all existing ENGINE implementations (except "openssl" and
3429 "openbsd") to dynamically instantiate their own error strings. This
3430 makes them more flexible to be built both as statically-linked ENGINEs
3431 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3432 Also, add stub code to each that makes building them as self-contained
3433 shared-libraries easier (see README.ENGINE).
3436 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3437 implementations into applications that are completely implemented in
3438 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3439 commands that can be used to configure what shared-library to load and
3440 to control aspects of the way it is handled. Also, made an update to
3441 the README.ENGINE file that brings its information up-to-date and
3442 provides some information and instructions on the "dynamic" ENGINE
3443 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3446 *) Make it possible to unload ranges of ERR strings with a new
3447 "ERR_unload_strings" function.
3450 *) Add a copy() function to EVP_MD.
3453 *) Make EVP_MD routines take a context pointer instead of just the
3454 md_data void pointer.
3457 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3458 that the digest can only process a single chunk of data
3459 (typically because it is provided by a piece of
3460 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3461 is only going to provide a single chunk of data, and hence the
3462 framework needn't accumulate the data for oneshot drivers.
3465 *) As with "ERR", make it possible to replace the underlying "ex_data"
3466 functions. This change also alters the storage and management of global
3467 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3468 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3469 index counters. The API functions that use this state have been changed
3470 to take a "class_index" rather than pointers to the class's local STACK
3471 and counter, and there is now an API function to dynamically create new
3472 classes. This centralisation allows us to (a) plug a lot of the
3473 thread-safety problems that existed, and (b) makes it possible to clean
3474 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3475 such data would previously have always leaked in application code and
3476 workarounds were in place to make the memory debugging turn a blind eye
3477 to it. Application code that doesn't use this new function will still
3478 leak as before, but their memory debugging output will announce it now
3479 rather than letting it slide.
3481 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3482 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3483 has a return value to indicate success or failure.
3486 *) Make it possible to replace the underlying "ERR" functions such that the
3487 global state (2 LHASH tables and 2 locks) is only used by the "default"
3488 implementation. This change also adds two functions to "get" and "set"
3489 the implementation prior to it being automatically set the first time
3490 any other ERR function takes place. Ie. an application can call "get",
3491 pass the return value to a module it has just loaded, and that module
3492 can call its own "set" function using that value. This means the
3493 module's "ERR" operations will use (and modify) the error state in the
3494 application and not in its own statically linked copy of OpenSSL code.
3497 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3498 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3499 the operation, and provides a more encapsulated way for external code
3500 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3501 to use these functions rather than manually incrementing the counts.
3503 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3506 *) Add EVP test program.
3509 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3512 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3513 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3514 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3515 These allow a CRL to be built without having to access X509_CRL fields
3516 directly. Modify 'ca' application to use new functions.
3519 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3520 bug workarounds. Rollback attack detection is a security feature.
3521 The problem will only arise on OpenSSL servers when TLSv1 is not
3522 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3523 Software authors not wanting to support TLSv1 will have special reasons
3524 for their choice and can explicitly enable this option.
3525 [Bodo Moeller, Lutz Jaenicke]
3527 *) Rationalise EVP so it can be extended: don't include a union of
3528 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3529 (similar to those existing for EVP_CIPHER_CTX).
3534 EVP_MD_CTX_init(&md); /* new function call */
3535 EVP_DigestInit(&md, EVP_sha1());
3536 EVP_DigestUpdate(&md, in, len);
3537 EVP_DigestFinal(&md, out, NULL);
3538 EVP_MD_CTX_cleanup(&md); /* new function call */
3542 *) Make DES key schedule conform to the usual scheme, as well as
3543 correcting its structure. This means that calls to DES functions
3544 now have to pass a pointer to a des_key_schedule instead of a
3545 plain des_key_schedule (which was actually always a pointer
3548 des_key_schedule ks;
3550 des_set_key_checked(..., &ks);
3551 des_ncbc_encrypt(..., &ks, ...);
3553 (Note that a later change renames 'des_...' into 'DES_...'.)
3556 *) Initial reduction of linker bloat: the use of some functions, such as
3557 PEM causes large amounts of unused functions to be linked in due to
3558 poor organisation. For example pem_all.c contains every PEM function
3559 which has a knock on effect of linking in large amounts of (unused)
3560 ASN1 code. Grouping together similar functions and splitting unrelated
3561 functions prevents this.
3564 *) Cleanup of EVP macros.
3567 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3568 correct _ecb suffix.
3571 *) Add initial OCSP responder support to ocsp application. The
3572 revocation information is handled using the text based index
3573 use by the ca application. The responder can either handle
3574 requests generated internally, supplied in files (for example
3575 via a CGI script) or using an internal minimal server.
3578 *) Add configuration choices to get zlib compression for TLS.
3581 *) Changes to Kerberos SSL for RFC 2712 compliance:
3582 1. Implemented real KerberosWrapper, instead of just using
3583 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3584 2. Implemented optional authenticator field of KerberosWrapper.
3586 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3587 and authenticator structs; see crypto/krb5/.
3589 Generalized Kerberos calls to support multiple Kerberos libraries.
3590 [Vern Staats <staatsvr@asc.hpc.mil>,
3591 Jeffrey Altman <jaltman@columbia.edu>
3592 via Richard Levitte]
3594 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3595 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3596 values for each of the key sizes rather than having just
3597 parameters (and 'speed' generating keys each time).
3600 *) Speed up EVP routines.
3603 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3604 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3605 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3606 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3608 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3609 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3610 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3613 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3615 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3618 *) Added the OS2-EMX target.
3619 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3621 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3622 to support NCONF routines in extension code. New function CONF_set_nconf()
3623 to allow functions which take an NCONF to also handle the old LHASH
3624 structure: this means that the old CONF compatible routines can be
3625 retained (in particular wrt extensions) without having to duplicate the
3626 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3629 *) Enhance the general user interface with mechanisms for inner control
3630 and with possibilities to have yes/no kind of prompts.
3633 *) Change all calls to low level digest routines in the library and
3634 applications to use EVP. Add missing calls to HMAC_cleanup() and
3635 don't assume HMAC_CTX can be copied using memcpy().
3636 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3638 *) Add the possibility to control engines through control names but with
3639 arbitrary arguments instead of just a string.
3640 Change the key loaders to take a UI_METHOD instead of a callback
3641 function pointer. NOTE: this breaks binary compatibility with earlier
3642 versions of OpenSSL [engine].
3643 Adapt the nCipher code for these new conditions and add a card insertion
3647 *) Enhance the general user interface with mechanisms to better support
3648 dialog box interfaces, application-defined prompts, the possibility
3649 to use defaults (for example default passwords from somewhere else)
3650 and interrupts/cancellations.
3653 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3654 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3657 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3658 tidy up some unnecessarily weird code in 'sk_new()').
3659 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3661 *) Change the key loading routines for ENGINEs to use the same kind
3662 callback (pem_password_cb) as all other routines that need this
3666 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3667 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3668 than this minimum value is recommended.
3671 *) New random seeder for OpenVMS, using the system process statistics
3672 that are easily reachable.
3675 *) Windows apparently can't transparently handle global
3676 variables defined in DLLs. Initialisations such as:
3678 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3680 wont compile. This is used by the any applications that need to
3681 declare their own ASN1 modules. This was fixed by adding the option
3682 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3683 needed for static libraries under Win32.
3686 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3687 setting of purpose and trust fields. New X509_STORE trust and
3688 purpose functions and tidy up setting in other SSL functions.
3691 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3692 structure. These are inherited by X509_STORE_CTX when it is
3693 initialised. This allows various defaults to be set in the
3694 X509_STORE structure (such as flags for CRL checking and custom
3695 purpose or trust settings) for functions which only use X509_STORE_CTX
3696 internally such as S/MIME.
3698 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3699 trust settings if they are not set in X509_STORE. This allows X509_STORE
3700 purposes and trust (in S/MIME for example) to override any set by default.
3702 Add command line options for CRL checking to smime, s_client and s_server
3706 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3707 are set then the CRL is looked up in the X509_STORE structure and
3708 its validity and signature checked, then if the certificate is found
3709 in the CRL the verify fails with a revoked error.
3711 Various new CRL related callbacks added to X509_STORE_CTX structure.
3713 Command line options added to 'verify' application to support this.
3715 This needs some additional work, such as being able to handle multiple
3716 CRLs with different times, extension based lookup (rather than just
3717 by subject name) and ultimately more complete V2 CRL extension
3721 *) Add a general user interface API (crypto/ui/). This is designed
3722 to replace things like des_read_password and friends (backward
3723 compatibility functions using this new API are provided).
3724 The purpose is to remove prompting functions from the DES code
3725 section as well as provide for prompting through dialog boxes in
3726 a window system and the like.
3729 *) Add "ex_data" support to ENGINE so implementations can add state at a
3730 per-structure level rather than having to store it globally.
3733 *) Make it possible for ENGINE structures to be copied when retrieved by
3734 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3735 This causes the "original" ENGINE structure to act like a template,
3736 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3737 operational state can be localised to each ENGINE structure, despite the
3738 fact they all share the same "methods". New ENGINE structures returned in
3739 this case have no functional references and the return value is the single
3740 structural reference. This matches the single structural reference returned
3741 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3745 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3746 needs to match any other type at all we need to manually clear the
3750 *) Changes to the "openssl engine" utility to include;
3751 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3752 about an ENGINE's available control commands.
3753 - executing control commands from command line arguments using the
3754 '-pre' and '-post' switches. '-post' is only used if '-t' is
3755 specified and the ENGINE is successfully initialised. The syntax for
3756 the individual commands are colon-separated, for example;
3757 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3760 *) New dynamic control command support for ENGINEs. ENGINEs can now
3761 declare their own commands (numbers), names (strings), descriptions,
3762 and input types for run-time discovery by calling applications. A
3763 subset of these commands are implicitly classed as "executable"
3764 depending on their input type, and only these can be invoked through
3765 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3766 can be based on user input, config files, etc). The distinction is
3767 that "executable" commands cannot return anything other than a boolean
3768 result and can only support numeric or string input, whereas some
3769 discoverable commands may only be for direct use through
3770 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3771 pointers, or other custom uses. The "executable" commands are to
3772 support parameterisations of ENGINE behaviour that can be
3773 unambiguously defined by ENGINEs and used consistently across any
3774 OpenSSL-based application. Commands have been added to all the
3775 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3776 control over shared-library paths without source code alterations.
3779 *) Changed all ENGINE implementations to dynamically allocate their
3780 ENGINEs rather than declaring them statically. Apart from this being
3781 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3782 this also allows the implementations to compile without using the
3783 internal engine_int.h header.
3786 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3787 'const' value. Any code that should be able to modify a RAND_METHOD
3788 should already have non-const pointers to it (ie. they should only
3789 modify their own ones).
3792 *) Made a variety of little tweaks to the ENGINE code.
3793 - "atalla" and "ubsec" string definitions were moved from header files
3794 to C code. "nuron" string definitions were placed in variables
3795 rather than hard-coded - allowing parameterisation of these values
3796 later on via ctrl() commands.
3797 - Removed unused "#if 0"'d code.
3798 - Fixed engine list iteration code so it uses ENGINE_free() to release
3799 structural references.
3800 - Constified the RAND_METHOD element of ENGINE structures.
3801 - Constified various get/set functions as appropriate and added
3802 missing functions (including a catch-all ENGINE_cpy that duplicates
3803 all ENGINE values onto a new ENGINE except reference counts/state).
3804 - Removed NULL parameter checks in get/set functions. Setting a method
3805 or function to NULL is a way of cancelling out a previously set
3806 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3807 and doesn't justify the extra error symbols and code.
3808 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3809 flags from engine_int.h to engine.h.
3810 - Changed prototypes for ENGINE handler functions (init(), finish(),
3811 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3814 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3815 to the algorithm using long division. The binary algorithm can be
3816 used only if the modulus is odd. On 32-bit systems, it is faster
3817 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3818 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3819 up to 450 bits. In 64-bit environments, the binary algorithm
3820 appears to be advantageous for much longer moduli; here we use it
3821 for moduli up to 2048 bits.
3824 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3825 could not support the combine flag in choice fields.
3828 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3829 extensions from a certificate request to the certificate.
3832 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3833 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3834 file: this allows the display of the certificate about to be
3835 signed to be customised, to allow certain fields to be included
3836 or excluded and extension details. The old system didn't display
3837 multicharacter strings properly, omitted fields not in the policy
3838 and couldn't display additional details such as extensions.
3841 *) Function EC_POINTs_mul for multiple scalar multiplication
3842 of an arbitrary number of elliptic curve points
3843 \sum scalars[i]*points[i],
3844 optionally including the generator defined for the EC_GROUP:
3845 scalar*generator + \sum scalars[i]*points[i].
3847 EC_POINT_mul is a simple wrapper function for the typical case
3848 that the point list has just one item (besides the optional
3852 *) First EC_METHODs for curves over GF(p):
3854 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3855 operations and provides various method functions that can also
3856 operate with faster implementations of modular arithmetic.
3858 EC_GFp_mont_method() reuses most functions that are part of
3859 EC_GFp_simple_method, but uses Montgomery arithmetic.
3861 [Bodo Moeller; point addition and point doubling
3862 implementation directly derived from source code provided by
3863 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3865 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3866 crypto/ec/ec_lib.c):
3868 Curves are EC_GROUP objects (with an optional group generator)
3869 based on EC_METHODs that are built into the library.
3871 Points are EC_POINT objects based on EC_GROUP objects.
3873 Most of the framework would be able to handle curves over arbitrary
3874 finite fields, but as there are no obvious types for fields other
3875 than GF(p), some functions are limited to that for now.
3878 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3879 that the file contains a complete HTTP response.
3882 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3883 change the def and num file printf format specifier from "%-40sXXX"
3884 to "%-39s XXX". The latter will always guarantee a space after the
3885 field while the former will cause them to run together if the field
3886 is 40 of more characters long.
3889 *) Constify the cipher and digest 'method' functions and structures
3890 and modify related functions to take constant EVP_MD and EVP_CIPHER
3894 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3895 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3898 *) Modify EVP_Digest*() routines so they now return values. Although the
3899 internal software routines can never fail additional hardware versions
3903 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3905 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3906 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3909 ERR_R_NESTED_ASN1_ERROR
3911 ERR_R_MISSING_ASN1_EOS
3912 were 4 .. 9, conflicting with
3913 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3915 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3916 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3918 Add new error code 'ERR_R_INTERNAL_ERROR'.
3921 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3925 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3926 sets the subject name for a new request or supersedes the
3927 subject name in a given request. Formats that can be parsed are
3928 'CN=Some Name, OU=myOU, C=IT'
3930 'CN=Some Name/OU=myOU/C=IT'.
3932 Add options '-batch' and '-verbose' to 'openssl req'.
3933 [Massimiliano Pala <madwolf@hackmasters.net>]
3935 *) Introduce the possibility to access global variables through
3936 functions on platform were that's the best way to handle exporting
3937 global variables in shared libraries. To enable this functionality,
3938 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3939 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3940 is normally done by Configure or something similar).
3942 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3943 in the source file (foo.c) like this:
3945 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3946 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3948 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3949 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3951 OPENSSL_DECLARE_GLOBAL(int,foo);
3952 #define foo OPENSSL_GLOBAL_REF(foo)
3953 OPENSSL_DECLARE_GLOBAL(double,bar);
3954 #define bar OPENSSL_GLOBAL_REF(bar)
3956 The #defines are very important, and therefore so is including the
3957 header file everywhere where the defined globals are used.
3959 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3960 of ASN.1 items, but that structure is a bit different.
3962 The largest change is in util/mkdef.pl which has been enhanced with
3963 better and easier to understand logic to choose which symbols should
3964 go into the Windows .def files as well as a number of fixes and code
3965 cleanup (among others, algorithm keywords are now sorted
3966 lexicographically to avoid constant rewrites).
3969 *) In BN_div() keep a copy of the sign of 'num' before writing the
3970 result to 'rm' because if rm==num the value will be overwritten
3971 and produce the wrong result if 'num' is negative: this caused
3972 problems with BN_mod() and BN_nnmod().
3975 *) Function OCSP_request_verify(). This checks the signature on an
3976 OCSP request and verifies the signer certificate. The signer
3977 certificate is just checked for a generic purpose and OCSP request
3981 *) Add OCSP_check_validity() function to check the validity of OCSP
3982 responses. OCSP responses are prepared in real time and may only
3983 be a few seconds old. Simply checking that the current time lies
3984 between thisUpdate and nextUpdate max reject otherwise valid responses
3985 caused by either OCSP responder or client clock inaccuracy. Instead
3986 we allow thisUpdate and nextUpdate to fall within a certain period of
3987 the current time. The age of the response can also optionally be
3988 checked. Two new options -validity_period and -status_age added to
3992 *) If signature or public key algorithm is unrecognized print out its
3993 OID rather that just UNKNOWN.
3996 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3997 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3998 ID to be generated from the issuer certificate alone which can then be
3999 passed to OCSP_id_issuer_cmp().
4002 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4003 ASN1 modules to export functions returning ASN1_ITEM pointers
4004 instead of the ASN1_ITEM structures themselves. This adds several
4005 new macros which allow the underlying ASN1 function/structure to
4006 be accessed transparently. As a result code should not use ASN1_ITEM
4007 references directly (such as &X509_it) but instead use the relevant
4008 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4009 use of the new ASN1 code on platforms where exporting structures
4010 is problematical (for example in shared libraries) but exporting
4011 functions returning pointers to structures is not.
4014 *) Add support for overriding the generation of SSL/TLS session IDs.
4015 These callbacks can be registered either in an SSL_CTX or per SSL.
4016 The purpose of this is to allow applications to control, if they wish,
4017 the arbitrary values chosen for use as session IDs, particularly as it
4018 can be useful for session caching in multiple-server environments. A
4019 command-line switch for testing this (and any client code that wishes
4020 to use such a feature) has been added to "s_server".
4021 [Geoff Thorpe, Lutz Jaenicke]
4023 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4024 of the form '#if defined(...) || defined(...) || ...' and
4025 '#if !defined(...) && !defined(...) && ...'. This also avoids
4026 the growing number of special cases it was previously handling.
4029 *) Make all configuration macros available for application by making
4030 sure they are available in opensslconf.h, by giving them names starting
4031 with "OPENSSL_" to avoid conflicts with other packages and by making
4032 sure e_os2.h will cover all platform-specific cases together with
4034 Additionally, it is now possible to define configuration/platform-
4035 specific names (called "system identities"). In the C code, these
4036 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4037 macro with the name beginning with "OPENSSL_SYS_", which is determined
4038 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4042 *) New option -set_serial to 'req' and 'x509' this allows the serial
4043 number to use to be specified on the command line. Previously self
4044 signed certificates were hard coded with serial number 0 and the
4045 CA options of 'x509' had to use a serial number in a file which was
4049 *) New options to 'ca' utility to support V2 CRL entry extensions.
4050 Currently CRL reason, invalidity date and hold instruction are
4051 supported. Add new CRL extensions to V3 code and some new objects.
4054 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4055 disable standard block padding (aka PKCS#5 padding) in the EVP
4056 API, which was previously mandatory. This means that the data is
4057 not padded in any way and so the total length much be a multiple
4058 of the block size, otherwise an error occurs.
4061 *) Initial (incomplete) OCSP SSL support.
4064 *) New function OCSP_parse_url(). This splits up a URL into its host,
4065 port and path components: primarily to parse OCSP URLs. New -url
4066 option to ocsp utility.
4069 *) New nonce behavior. The return value of OCSP_check_nonce() now
4070 reflects the various checks performed. Applications can decide
4071 whether to tolerate certain situations such as an absent nonce
4072 in a response when one was present in a request: the ocsp application
4073 just prints out a warning. New function OCSP_add1_basic_nonce()
4074 this is to allow responders to include a nonce in a response even if
4075 the request is nonce-less.
4078 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4079 skipped when using openssl x509 multiple times on a single input file,
4080 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4083 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4084 set string type: to handle setting ASN1_TIME structures. Fix ca
4085 utility to correctly initialize revocation date of CRLs.
4088 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4089 the clients preferred ciphersuites and rather use its own preferences.
4090 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4091 Internet Explorer by ensuring unchanged hash method during stepup.
4092 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4095 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4096 to aes and add a new 'exist' option to print out symbols that don't
4100 *) Additional options to ocsp utility to allow flags to be set and
4101 additional certificates supplied.
4104 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4105 OCSP client a number of certificate to only verify the response
4109 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4110 handle the new API. Currently only ECB, CBC modes supported. Add new
4113 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4114 Encryption Standard (AES) Ciphersuites for Transport Layer
4115 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4116 not enabled by default and were not part of the "ALL" ciphersuite
4117 alias because they were not yet official; they could be
4118 explicitly requested by specifying the "AESdraft" ciphersuite
4119 group alias. In the final release of OpenSSL 0.9.7, the group
4120 alias is called "AES" and is part of "ALL".)
4121 [Ben Laurie, Steve Henson, Bodo Moeller]
4123 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4124 request to response.
4127 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4128 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4129 extract information from a certificate request. OCSP_response_create()
4130 creates a response and optionally adds a basic response structure.
4131 OCSP_basic_add1_status() adds a complete single response to a basic
4132 response and returns the OCSP_SINGLERESP structure just added (to allow
4133 extensions to be included for example). OCSP_basic_add1_cert() adds a
4134 certificate to a basic response and OCSP_basic_sign() signs a basic
4135 response with various flags. New helper functions ASN1_TIME_check()
4136 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4137 (converts ASN1_TIME to GeneralizedTime).
4140 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4141 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4142 structure from a certificate. X509_pubkey_digest() digests the public_key
4143 contents: this is used in various key identifiers.
4146 *) Make sk_sort() tolerate a NULL argument.
4147 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4149 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4150 passed by the function are trusted implicitly. If any of them signed the
4151 response then it is assumed to be valid and is not verified.
4154 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4155 to data. This was previously part of the PKCS7 ASN1 code. This
4156 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4157 [Steve Henson, reported by Kenneth R. Robinette
4158 <support@securenetterm.com>]
4160 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4161 routines: without these tracing memory leaks is very painful.
4162 Fix leaks in PKCS12 and PKCS7 routines.
4165 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4166 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4167 effectively meant GeneralizedTime would never be used. Now it
4168 is initialised to -1 but X509_time_adj() now has to check the value
4169 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4170 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4171 [Steve Henson, reported by Kenneth R. Robinette
4172 <support@securenetterm.com>]
4174 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4175 result in a zero length in the ASN1_INTEGER structure which was
4176 not consistent with the structure when d2i_ASN1_INTEGER() was used
4177 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4178 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4179 where it did not print out a minus for negative ASN1_INTEGER.
4182 *) Add summary printout to ocsp utility. The various functions which
4183 convert status values to strings have been renamed to:
4184 OCSP_response_status_str(), OCSP_cert_status_str() and
4185 OCSP_crl_reason_str() and are no longer static. New options
4186 to verify nonce values and to disable verification. OCSP response
4187 printout format cleaned up.
4190 *) Add additional OCSP certificate checks. These are those specified
4191 in RFC2560. This consists of two separate checks: the CA of the
4192 certificate being checked must either be the OCSP signer certificate
4193 or the issuer of the OCSP signer certificate. In the latter case the
4194 OCSP signer certificate must contain the OCSP signing extended key
4195 usage. This check is performed by attempting to match the OCSP
4196 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4197 in the OCSP_CERTID structures of the response.
4200 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4201 and related routines. This uses the standard OpenSSL certificate
4202 verify routines to perform initial checks (just CA validity) and
4203 to obtain the certificate chain. Then additional checks will be
4204 performed on the chain. Currently the root CA is checked to see
4205 if it is explicitly trusted for OCSP signing. This is used to set
4206 a root CA as a global signing root: that is any certificate that
4207 chains to that CA is an acceptable OCSP signing certificate.
4210 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4211 extensions from a separate configuration file.
4212 As when reading extensions from the main configuration file,
4213 the '-extensions ...' option may be used for specifying the
4215 [Massimiliano Pala <madwolf@comune.modena.it>]
4217 *) New OCSP utility. Allows OCSP requests to be generated or
4218 read. The request can be sent to a responder and the output
4219 parsed, outputed or printed in text form. Not complete yet:
4220 still needs to check the OCSP response validity.
4223 *) New subcommands for 'openssl ca':
4224 'openssl ca -status <serial>' prints the status of the cert with
4225 the given serial number (according to the index file).
4226 'openssl ca -updatedb' updates the expiry status of certificates
4228 [Massimiliano Pala <madwolf@comune.modena.it>]
4230 *) New '-newreq-nodes' command option to CA.pl. This is like
4231 '-newreq', but calls 'openssl req' with the '-nodes' option
4232 so that the resulting key is not encrypted.
4233 [Damien Miller <djm@mindrot.org>]
4235 *) New configuration for the GNU Hurd.
4236 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4238 *) Initial code to implement OCSP basic response verify. This
4239 is currently incomplete. Currently just finds the signer's
4240 certificate and verifies the signature on the response.
4243 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4244 value of OPENSSLDIR. This is available via the new '-d' option
4245 to 'openssl version', and is also included in 'openssl version -a'.
4248 *) Allowing defining memory allocation callbacks that will be given
4249 file name and line number information in additional arguments
4250 (a const char* and an int). The basic functionality remains, as
4251 well as the original possibility to just replace malloc(),
4252 realloc() and free() by functions that do not know about these
4253 additional arguments. To register and find out the current
4254 settings for extended allocation functions, the following
4255 functions are provided:
4257 CRYPTO_set_mem_ex_functions
4258 CRYPTO_set_locked_mem_ex_functions
4259 CRYPTO_get_mem_ex_functions
4260 CRYPTO_get_locked_mem_ex_functions
4262 These work the same way as CRYPTO_set_mem_functions and friends.
4263 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4264 extended allocation function is enabled.
4265 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4266 a conventional allocation function is enabled.
4267 [Richard Levitte, Bodo Moeller]
4269 *) Finish off removing the remaining LHASH function pointer casts.
4270 There should no longer be any prototype-casting required when using
4271 the LHASH abstraction, and any casts that remain are "bugs". See
4272 the callback types and macros at the head of lhash.h for details
4273 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4276 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4277 If /dev/[u]random devices are not available or do not return enough
4278 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4280 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4281 /etc/entropy will be queried once each in this sequence, quering stops
4282 when enough entropy was collected without querying more sockets.
4285 *) Change the Unix RAND_poll() variant to be able to poll several
4286 random devices, as specified by DEVRANDOM, until a sufficient amount
4287 of data has been collected. We spend at most 10 ms on each file
4288 (select timeout) and read in non-blocking mode. DEVRANDOM now
4289 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4290 (previously it was just the string "/dev/urandom"), so on typical
4291 platforms the 10 ms delay will never occur.
4292 Also separate out the Unix variant to its own file, rand_unix.c.
4293 For VMS, there's a currently-empty rand_vms.c.
4296 *) Move OCSP client related routines to ocsp_cl.c. These
4297 provide utility functions which an application needing
4298 to issue a request to an OCSP responder and analyse the
4299 response will typically need: as opposed to those which an
4300 OCSP responder itself would need which will be added later.
4302 OCSP_request_sign() signs an OCSP request with an API similar
4303 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4304 response. OCSP_response_get1_basic() extracts basic response
4305 from response. OCSP_resp_find_status(): finds and extracts status
4306 information from an OCSP_CERTID structure (which will be created
4307 when the request structure is built). These are built from lower
4308 level functions which work on OCSP_SINGLERESP structures but
4309 wont normally be used unless the application wishes to examine
4310 extensions in the OCSP response for example.
4312 Replace nonce routines with a pair of functions.
4313 OCSP_request_add1_nonce() adds a nonce value and optionally
4314 generates a random value. OCSP_check_nonce() checks the
4315 validity of the nonce in an OCSP response.
4318 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4319 This doesn't copy the supplied OCSP_CERTID and avoids the
4320 need to free up the newly created id. Change return type
4321 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4322 This can then be used to add extensions to the request.
4323 Deleted OCSP_request_new(), since most of its functionality
4324 is now in OCSP_REQUEST_new() (and the case insensitive name
4325 clash) apart from the ability to set the request name which
4326 will be added elsewhere.
4329 *) Update OCSP API. Remove obsolete extensions argument from
4330 various functions. Extensions are now handled using the new
4331 OCSP extension code. New simple OCSP HTTP function which
4332 can be used to send requests and parse the response.
4335 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4336 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4337 uses the special reorder version of SET OF to sort the attributes
4338 and reorder them to match the encoded order. This resolves a long
4339 standing problem: a verify on a PKCS7 structure just after signing
4340 it used to fail because the attribute order did not match the
4341 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4342 it uses the received order. This is necessary to tolerate some broken
4343 software that does not order SET OF. This is handled by encoding
4344 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4345 to produce the required SET OF.
4348 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4349 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4350 files to get correct declarations of the ASN.1 item variables.
4353 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4354 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4355 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4356 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4357 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4358 ASN1_ITEM and no wrapper functions.
4361 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4362 replace the old function pointer based I/O routines. Change most of
4363 the *_d2i_bio() and *_d2i_fp() functions to use these.
4366 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4367 lines, recognice more "algorithms" that can be deselected, and make
4368 it complain about algorithm deselection that isn't recognised.
4371 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4372 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4373 to use new functions. Add NO_ASN1_OLD which can be set to remove
4374 some old style ASN1 functions: this can be used to determine if old
4375 code will still work when these eventually go away.
4378 *) New extension functions for OCSP structures, these follow the
4379 same conventions as certificates and CRLs.
4382 *) New function X509V3_add1_i2d(). This automatically encodes and
4383 adds an extension. Its behaviour can be customised with various
4384 flags to append, replace or delete. Various wrappers added for
4385 certifcates and CRLs.
4388 *) Fix to avoid calling the underlying ASN1 print routine when
4389 an extension cannot be parsed. Correct a typo in the
4390 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4393 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4394 entries for variables.
4397 *) Add functionality to apps/openssl.c for detecting locking
4398 problems: As the program is single-threaded, all we have
4399 to do is register a locking callback using an array for
4400 storing which locks are currently held by the program.
4403 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4404 SSL_get_ex_data_X509_STORE_idx(), which is used in
4405 ssl_verify_cert_chain() and thus can be called at any time
4406 during TLS/SSL handshakes so that thread-safety is essential.
4407 Unfortunately, the ex_data design is not at all suited
4408 for multi-threaded use, so it probably should be abolished.
4411 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4412 [Broadcom, tweaked and integrated by Geoff Thorpe]
4414 *) Move common extension printing code to new function
4415 X509V3_print_extensions(). Reorganise OCSP print routines and
4416 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4419 *) New function X509_signature_print() to remove duplication in some
4423 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4424 set (this was treated exactly the same as SET OF previously). This
4425 is used to reorder the STACK representing the structure to match the
4426 encoding. This will be used to get round a problem where a PKCS7
4427 structure which was signed could not be verified because the STACK
4428 order did not reflect the encoded order.
4431 *) Reimplement the OCSP ASN1 module using the new code.
4434 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4435 for its ASN1 operations. The old style function pointers still exist
4436 for now but they will eventually go away.
4439 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4440 completely replaces the old ASN1 functionality with a table driven
4441 encoder and decoder which interprets an ASN1_ITEM structure describing
4442 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4443 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4444 has also been converted to the new form.
4447 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4448 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4449 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4450 for negative moduli.
4453 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4454 of not touching the result's sign bit.
4457 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4461 *) Changed the LHASH code to use prototypes for callbacks, and created
4462 macros to declare and implement thin (optionally static) functions
4463 that provide type-safety and avoid function pointer casting for the
4464 type-specific callbacks.
4467 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4469 [Veers Staats <staatsvr@asc.hpc.mil>,
4470 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4472 *) Reformat the FAQ so the different questions and answers can be divided
4473 in sections depending on the subject.
4476 *) Have the zlib compression code load ZLIB.DLL dynamically under
4480 *) New function BN_mod_sqrt for computing square roots modulo a prime
4481 (using the probabilistic Tonelli-Shanks algorithm unless
4482 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4483 be handled deterministically).
4484 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4486 *) Make BN_mod_inverse faster by explicitly handling small quotients
4487 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4488 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4491 *) New function BN_kronecker.
4494 *) Fix BN_gcd so that it works on negative inputs; the result is
4495 positive unless both parameters are zero.
4496 Previously something reasonably close to an infinite loop was
4497 possible because numbers could be growing instead of shrinking
4498 in the implementation of Euclid's algorithm.
4501 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4502 sign of the number in question.
4504 Fix BN_is_word(a,w) to work correctly for w == 0.
4506 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4507 because its test if the absolute value of 'a' equals 'w'.
4508 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4509 it exists mostly for use in the implementations of BN_is_zero(),
4510 BN_is_one(), and BN_is_word().
4513 *) New function BN_swap.
4516 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4517 the exponentiation functions are more likely to produce reasonable
4518 results on negative inputs.
4521 *) Change BN_mod_mul so that the result is always non-negative.
4522 Previously, it could be negative if one of the factors was negative;
4523 I don't think anyone really wanted that behaviour.
4526 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4527 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4528 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4529 and add new functions:
4538 BN_mod_lshift1_quick
4542 These functions always generate non-negative results.
4544 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4545 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4547 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4548 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4549 be reduced modulo m.
4550 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4553 The following entry accidentily appeared in the CHANGES file
4554 distributed with OpenSSL 0.9.7. The modifications described in
4555 it do *not* apply to OpenSSL 0.9.7.
4557 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4558 was actually never needed) and in BN_mul(). The removal in BN_mul()
4559 required a small change in bn_mul_part_recursive() and the addition
4560 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4561 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4562 bn_sub_words() and bn_add_words() except they take arrays with
4567 *) In 'openssl passwd', verify passwords read from the terminal
4568 unless the '-salt' option is used (which usually means that
4569 verification would just waste user's time since the resulting
4570 hash is going to be compared with some given password hash)
4571 or the new '-noverify' option is used.
4573 This is an incompatible change, but it does not affect
4574 non-interactive use of 'openssl passwd' (passwords on the command
4575 line, '-stdin' option, '-in ...' option) and thus should not
4579 *) Remove all references to RSAref, since there's no more need for it.
4582 *) Make DSO load along a path given through an environment variable
4583 (SHLIB_PATH) with shl_load().
4586 *) Constify the ENGINE code as a result of BIGNUM constification.
4587 Also constify the RSA code and most things related to it. In a
4588 few places, most notable in the depth of the ASN.1 code, ugly
4589 casts back to non-const were required (to be solved at a later
4593 *) Make it so the openssl application has all engines loaded by default.
4596 *) Constify the BIGNUM routines a little more.
4599 *) Add the following functions:
4601 ENGINE_load_cswift()
4603 ENGINE_load_atalla()
4605 ENGINE_load_builtin_engines()
4607 That way, an application can itself choose if external engines that
4608 are built-in in OpenSSL shall ever be used or not. The benefit is
4609 that applications won't have to be linked with libdl or other dso
4610 libraries unless it's really needed.
4612 Changed 'openssl engine' to load all engines on demand.
4613 Changed the engine header files to avoid the duplication of some
4614 declarations (they differed!).
4617 *) 'openssl engine' can now list capabilities.
4620 *) Better error reporting in 'openssl engine'.
4623 *) Never call load_dh_param(NULL) in s_server.
4626 *) Add engine application. It can currently list engines by name and
4627 identity, and test if they are actually available.
4630 *) Improve RPM specification file by forcing symbolic linking and making
4631 sure the installed documentation is also owned by root.root.
4632 [Damien Miller <djm@mindrot.org>]
4634 *) Give the OpenSSL applications more possibilities to make use of
4635 keys (public as well as private) handled by engines.
4638 *) Add OCSP code that comes from CertCo.
4641 *) Add VMS support for the Rijndael code.
4644 *) Added untested support for Nuron crypto accelerator.
4647 *) Add support for external cryptographic devices. This code was
4648 previously distributed separately as the "engine" branch.
4649 [Geoff Thorpe, Richard Levitte]
4651 *) Rework the filename-translation in the DSO code. It is now possible to
4652 have far greater control over how a "name" is turned into a filename
4653 depending on the operating environment and any oddities about the
4654 different shared library filenames on each system.
4657 *) Support threads on FreeBSD-elf in Configure.
4660 *) Fix for SHA1 assembly problem with MASM: it produces
4661 warnings about corrupt line number information when assembling
4662 with debugging information. This is caused by the overlapping
4664 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4667 NCONF_get_number() has no error checking at all. As a replacement,
4668 NCONF_get_number_e() is defined (_e for "error checking") and is
4669 promoted strongly. The old NCONF_get_number is kept around for
4670 binary backward compatibility.
4671 Make it possible for methods to load from something other than a BIO,
4672 by providing a function pointer that is given a name instead of a BIO.
4673 For example, this could be used to load configuration data from an
4677 *) Fix for non blocking accept BIOs. Added new I/O special reason
4678 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4679 with non blocking I/O was not possible because no retry code was
4680 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4684 *) Added the beginnings of Rijndael support.
4687 *) Fix for bug in DirectoryString mask setting. Add support for
4688 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4689 to allow certificate printing to more controllable, additional
4690 'certopt' option to 'x509' to allow new printing options to be
4694 *) Clean old EAY MD5 hack from e_os.h.
4697 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4699 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4700 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4701 [Joe Orton, Steve Henson]
4703 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4705 *) Fix additional bug revealed by the NISCC test suite:
4707 Stop bug triggering large recursion when presented with
4708 certain ASN.1 tags (CVE-2003-0851)
4711 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4713 *) Fix various bugs revealed by running the NISCC test suite:
4715 Stop out of bounds reads in the ASN1 code when presented with
4716 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4718 If verify callback ignores invalid public key errors don't try to check
4719 certificate signature with the NULL public key.
4723 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4724 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4728 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4729 extra data after the compression methods not only for TLS 1.0
4730 but also for SSL 3.0 (as required by the specification).
4731 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4733 *) Change X509_certificate_type() to mark the key as exported/exportable
4734 when it's 512 *bits* long, not 512 bytes.
4737 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4739 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4740 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4741 a protocol version number mismatch like a decryption error
4742 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4745 *) Turn on RSA blinding by default in the default implementation
4746 to avoid a timing attack. Applications that don't want it can call
4747 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4748 They would be ill-advised to do so in most cases.
4749 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4751 *) Change RSA blinding code so that it works when the PRNG is not
4752 seeded (in this case, the secret RSA exponent is abused as
4753 an unpredictable seed -- if it is not unpredictable, there
4754 is no point in blinding anyway). Make RSA blinding thread-safe
4755 by remembering the creator's thread ID in rsa->blinding and
4756 having all other threads use local one-time blinding factors
4757 (this requires more computation than sharing rsa->blinding, but
4758 avoids excessive locking; and if an RSA object is not shared
4759 between threads, blinding will still be very fast).
4762 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4764 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4765 via timing by performing a MAC computation even if incorrrect
4766 block cipher padding has been found. This is a countermeasure
4767 against active attacks where the attacker has to distinguish
4768 between bad padding and a MAC verification error. (CVE-2003-0078)
4770 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4771 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4772 Martin Vuagnoux (EPFL, Ilion)]
4774 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4776 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4777 memory from it's contents. This is done with a counter that will
4778 place alternating values in each byte. This can be used to solve
4779 two issues: 1) the removal of calls to memset() by highly optimizing
4780 compilers, and 2) cleansing with other values than 0, since those can
4781 be read through on certain media, for example a swap space on disk.
4784 *) Bugfix: client side session caching did not work with external caching,
4785 because the session->cipher setting was not restored when reloading
4786 from the external cache. This problem was masked, when
4787 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4788 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4791 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4792 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4793 [Zeev Lieber <zeev-l@yahoo.com>]
4795 *) Undo an undocumented change introduced in 0.9.6e which caused
4796 repeated calls to OpenSSL_add_all_ciphers() and
4797 OpenSSL_add_all_digests() to be ignored, even after calling
4801 *) Change the default configuration reader to deal with last line not
4802 being properly terminated.
4805 *) Change X509_NAME_cmp() so it applies the special rules on handling
4806 DN values that are of type PrintableString, as well as RDNs of type
4807 emailAddress where the value has the type ia5String.
4808 [stefank@valicert.com via Richard Levitte]
4810 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4811 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4812 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4813 the bitwise-OR of the two for use by the majority of applications
4814 wanting this behaviour, and update the docs. The documented
4815 behaviour and actual behaviour were inconsistent and had been
4816 changing anyway, so this is more a bug-fix than a behavioural
4818 [Geoff Thorpe, diagnosed by Nadav Har'El]
4820 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4821 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4824 *) Fix initialization code race conditions in
4825 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4826 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4827 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4828 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4829 ssl2_get_cipher_by_char(),
4830 ssl3_get_cipher_by_char().
4831 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4833 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4834 the cached sessions are flushed, as the remove_cb() might use ex_data
4835 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4836 (see [openssl.org #212]).
4837 [Geoff Thorpe, Lutz Jaenicke]
4839 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4840 length, instead of the encoding length to d2i_ASN1_OBJECT.
4843 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4845 *) [In 0.9.6g-engine release:]
4846 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4847 [Lynn Gazis <lgazis@rainbow.com>]
4849 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4851 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4852 and get fix the header length calculation.
4853 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4854 Alon Kantor <alonk@checkpoint.com> (and others),
4857 *) Use proper error handling instead of 'assertions' in buffer
4858 overflow checks added in 0.9.6e. This prevents DoS (the
4859 assertions could call abort()).
4860 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4862 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4864 *) Add various sanity checks to asn1_get_length() to reject
4865 the ASN1 length bytes if they exceed sizeof(long), will appear
4866 negative or the content length exceeds the length of the
4868 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4870 *) Fix cipher selection routines: ciphers without encryption had no flags
4871 for the cipher strength set and where therefore not handled correctly
4872 by the selection routines (PR #130).
4875 *) Fix EVP_dsa_sha macro.
4879 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4880 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4881 that was added in OpenSSL 0.9.6d.
4883 As the countermeasure turned out to be incompatible with some
4884 broken SSL implementations, the new option is part of SSL_OP_ALL.
4885 SSL_OP_ALL is usually employed when compatibility with weird SSL
4886 implementations is desired (e.g. '-bugs' option to 's_client' and
4887 's_server'), so the new option is automatically set in many
4891 *) Changes in security patch:
4893 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4894 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4895 Air Force Materiel Command, USAF, under agreement number
4898 *) Add various sanity checks to asn1_get_length() to reject
4899 the ASN1 length bytes if they exceed sizeof(long), will appear
4900 negative or the content length exceeds the length of the
4901 supplied buffer. (CVE-2002-0659)
4902 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4904 *) Assertions for various potential buffer overflows, not known to
4906 [Ben Laurie (CHATS)]
4908 *) Various temporary buffers to hold ASCII versions of integers were
4909 too small for 64 bit platforms. (CVE-2002-0655)
4910 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4912 *) Remote buffer overflow in SSL3 protocol - an attacker could
4913 supply an oversized session ID to a client. (CVE-2002-0656)
4914 [Ben Laurie (CHATS)]
4916 *) Remote buffer overflow in SSL2 protocol - an attacker could
4917 supply an oversized client master key. (CVE-2002-0656)
4918 [Ben Laurie (CHATS)]
4920 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4922 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4923 encoded as NULL) with id-dsa-with-sha1.
4924 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4926 *) Check various X509_...() return values in apps/req.c.
4927 [Nils Larsch <nla@trustcenter.de>]
4929 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4930 an end-of-file condition would erronously be flagged, when the CRLF
4931 was just at the end of a processed block. The bug was discovered when
4932 processing data through a buffering memory BIO handing the data to a
4933 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4934 <ptsekov@syntrex.com> and Nedelcho Stanev.
4937 *) Implement a countermeasure against a vulnerability recently found
4938 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4939 before application data chunks to avoid the use of known IVs
4940 with data potentially chosen by the attacker.
4943 *) Fix length checks in ssl3_get_client_hello().
4946 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4947 to prevent ssl3_read_internal() from incorrectly assuming that
4948 ssl3_read_bytes() found application data while handshake
4949 processing was enabled when in fact s->s3->in_read_app_data was
4950 merely automatically cleared during the initial handshake.
4951 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4953 *) Fix object definitions for Private and Enterprise: they were not
4954 recognized in their shortname (=lowercase) representation. Extend
4955 obj_dat.pl to issue an error when using undefined keywords instead
4956 of silently ignoring the problem (Svenning Sorensen
4957 <sss@sss.dnsalias.net>).
4960 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4961 generators, i.e. generators other than 2 and 5. (Previously, the
4962 code did not properly initialise the 'add' and 'rem' values to
4963 BN_generate_prime().)
4965 In the new general case, we do not insist that 'generator' is
4966 actually a primitive root: This requirement is rather pointless;
4967 a generator of the order-q subgroup is just as good, if not
4971 *) Map new X509 verification errors to alerts. Discovered and submitted by
4972 Tom Wu <tom@arcot.com>.
4975 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4976 returning non-zero before the data has been completely received
4977 when using non-blocking I/O.
4978 [Bodo Moeller; problem pointed out by John Hughes]
4980 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4981 [Ben Laurie, Lutz Jaenicke]
4983 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4984 Yoram Zahavi <YoramZ@gilian.com>).
4987 *) Add information about CygWin 1.3 and on, and preserve proper
4988 configuration for the versions before that.
4989 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4991 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4992 check whether we deal with a copy of a session and do not delete from
4993 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4994 <izhar@checkpoint.com>.
4997 *) Do not store session data into the internal session cache, if it
4998 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4999 flag is set). Proposed by Aslam <aslam@funk.com>.
5002 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5006 *) [In 0.9.6d-engine release:]
5007 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5008 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5010 *) Add the configuration target linux-s390x.
5011 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5013 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5014 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5015 variable as an indication that a ClientHello message has been
5016 received. As the flag value will be lost between multiple
5017 invocations of ssl3_accept when using non-blocking I/O, the
5018 function may not be aware that a handshake has actually taken
5019 place, thus preventing a new session from being added to the
5022 To avoid this problem, we now set s->new_session to 2 instead of
5023 using a local variable.
5024 [Lutz Jaenicke, Bodo Moeller]
5026 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5027 if the SSL_R_LENGTH_MISMATCH error is detected.
5028 [Geoff Thorpe, Bodo Moeller]
5030 *) New 'shared_ldflag' column in Configure platform table.
5033 *) Fix EVP_CIPHER_mode macro.
5034 ["Dan S. Camper" <dan@bti.net>]
5036 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5037 type, we must throw them away by setting rr->length to 0.
5038 [D P Chang <dpc@qualys.com>]
5040 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5042 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5043 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5044 worked incorrectly for those cases where range = 10..._2 and
5045 3*range is two bits longer than range.)
5048 *) Only add signing time to PKCS7 structures if it is not already
5052 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5053 OBJ_ld_ce should be OBJ_id_ce.
5054 Also some ip-pda OIDs in crypto/objects/objects.txt were
5055 incorrect (cf. RFC 3039).
5056 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5058 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5059 returns early because it has nothing to do.
5060 [Andy Schneider <andy.schneider@bjss.co.uk>]
5062 *) [In 0.9.6c-engine release:]
5063 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5064 [Andy Schneider <andy.schneider@bjss.co.uk>]
5066 *) [In 0.9.6c-engine release:]
5067 Add support for Cryptographic Appliance's keyserver technology.
5068 (Use engine 'keyclient')
5069 [Cryptographic Appliances and Geoff Thorpe]
5071 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5072 is called via tools/c89.sh because arguments have to be
5073 rearranged (all '-L' options must appear before the first object
5075 [Richard Shapiro <rshapiro@abinitio.com>]
5077 *) [In 0.9.6c-engine release:]
5078 Add support for Broadcom crypto accelerator cards, backported
5080 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5082 *) [In 0.9.6c-engine release:]
5083 Add support for SureWare crypto accelerator cards from
5084 Baltimore Technologies. (Use engine 'sureware')
5085 [Baltimore Technologies and Mark Cox]
5087 *) [In 0.9.6c-engine release:]
5088 Add support for crypto accelerator cards from Accelerated
5089 Encryption Processing, www.aep.ie. (Use engine 'aep')
5090 [AEP Inc. and Mark Cox]
5092 *) Add a configuration entry for gcc on UnixWare.
5093 [Gary Benson <gbenson@redhat.com>]
5095 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5096 messages are stored in a single piece (fixed-length part and
5097 variable-length part combined) and fix various bugs found on the way.
5100 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5101 instead. BIO_gethostbyname() does not know what timeouts are
5102 appropriate, so entries would stay in cache even when they have
5104 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5106 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5107 faced with a pathologically small ClientHello fragment that does
5108 not contain client_version: Instead of aborting with an error,
5109 simply choose the highest available protocol version (i.e.,
5110 TLS 1.0 unless it is disabled). In practice, ClientHello
5111 messages are never sent like this, but this change gives us
5112 strictly correct behaviour at least for TLS.
5115 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5116 never resets s->method to s->ctx->method when called from within
5117 one of the SSL handshake functions.
5118 [Bodo Moeller; problem pointed out by Niko Baric]
5120 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5121 (sent using the client's version number) if client_version is
5122 smaller than the protocol version in use. Also change
5123 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5124 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5125 the client will at least see that alert.
5128 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5132 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5133 client receives HelloRequest while in a handshake.
5134 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5136 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5137 should end in 'break', not 'goto end' which circuments various
5138 cleanups done in state SSL_ST_OK. But session related stuff
5139 must be disabled for SSL_ST_OK in the case that we just sent a
5142 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5143 before just sending a HelloRequest.
5144 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5146 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5147 reveal whether illegal block cipher padding was found or a MAC
5148 verification error occured. (Neither SSLerr() codes nor alerts
5149 are directly visible to potential attackers, but the information
5150 may leak via logfiles.)
5152 Similar changes are not required for the SSL 2.0 implementation
5153 because the number of padding bytes is sent in clear for SSL 2.0,
5154 and the extra bytes are just ignored. However ssl/s2_pkt.c
5155 failed to verify that the purported number of padding bytes is in
5159 *) Add OpenUNIX-8 support including shared libraries
5160 (Boyd Lynn Gerber <gerberb@zenez.com>).
5163 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5164 'wristwatch attack' using huge encoding parameters (cf.
5165 James H. Manger's CRYPTO 2001 paper). Note that the
5166 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5167 encoding parameters and hence was not vulnerable.
5170 *) BN_sqr() bug fix.
5171 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5173 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5174 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5175 followed by modular reduction.
5176 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5178 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5179 equivalent based on BN_pseudo_rand() instead of BN_rand().
5182 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5183 This function was broken, as the check for a new client hello message
5184 to handle SGC did not allow these large messages.
5185 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5188 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5191 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5192 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5195 *) Rework the configuration and shared library support for Tru64 Unix.
5196 The configuration part makes use of modern compiler features and
5197 still retains old compiler behavior for those that run older versions
5198 of the OS. The shared library support part includes a variant that
5199 uses the RPATH feature, and is available through the special
5200 configuration target "alpha-cc-rpath", which will never be selected
5202 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5204 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5205 with the same message size as in ssl3_get_certificate_request().
5206 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5207 messages might inadvertently be reject as too long.
5208 [Petr Lampa <lampa@fee.vutbr.cz>]
5210 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5213 *) Modified SSL library such that the verify_callback that has been set
5214 specificly for an SSL object with SSL_set_verify() is actually being
5215 used. Before the change, a verify_callback set with this function was
5216 ignored and the verify_callback() set in the SSL_CTX at the time of
5217 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5218 to allow the necessary settings.
5221 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5222 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5223 done automatically (in contradiction to the requirements of the C
5224 standard). This made problems when used from OpenSSH.
5227 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5228 dh->length and always used
5230 BN_rand_range(priv_key, dh->p).
5232 BN_rand_range() is not necessary for Diffie-Hellman, and this
5233 specific range makes Diffie-Hellman unnecessarily inefficient if
5234 dh->length (recommended exponent length) is much smaller than the
5235 length of dh->p. We could use BN_rand_range() if the order of
5236 the subgroup was stored in the DH structure, but we only have
5241 BN_rand(priv_key, l, ...)
5243 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5249 RSA_eay_public_encrypt
5250 RSA_eay_private_decrypt
5251 RSA_eay_private_encrypt (signing)
5252 RSA_eay_public_decrypt (signature verification)
5254 (default implementations for RSA_public_encrypt,
5255 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5256 always reject numbers >= n.
5259 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5260 to synchronize access to 'locking_thread'. This is necessary on
5261 systems where access to 'locking_thread' (an 'unsigned long'
5262 variable) is not atomic.
5265 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5266 *before* setting the 'crypto_lock_rand' flag. The previous code had
5267 a race condition if 0 is a valid thread ID.
5268 [Travis Vitek <vitek@roguewave.com>]
5270 *) Add support for shared libraries under Irix.
5271 [Albert Chin-A-Young <china@thewrittenword.com>]
5273 *) Add configuration option to build on Linux on both big-endian and
5275 [Ralf Baechle <ralf@uni-koblenz.de>]
5277 *) Add the possibility to create shared libraries on HP-UX.
5280 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5282 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5283 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5284 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5285 PRNG state recovery was possible based on the output of
5286 one PRNG request appropriately sized to gain knowledge on
5287 'md' followed by enough consecutive 1-byte PRNG requests
5288 to traverse all of 'state'.
5290 1. When updating 'md_local' (the current thread's copy of 'md')
5291 during PRNG output generation, hash all of the previous
5292 'md_local' value, not just the half used for PRNG output.
5294 2. Make the number of bytes from 'state' included into the hash
5295 independent from the number of PRNG bytes requested.
5297 The first measure alone would be sufficient to avoid
5298 Markku-Juhani's attack. (Actually it had never occurred
5299 to me that the half of 'md_local' used for chaining was the
5300 half from which PRNG output bytes were taken -- I had always
5301 assumed that the secret half would be used.) The second
5302 measure makes sure that additional data from 'state' is never
5303 mixed into 'md_local' in small portions; this heuristically
5304 further strengthens the PRNG.
5307 *) Fix crypto/bn/asm/mips3.s.
5310 *) When only the key is given to "enc", the IV is undefined. Print out
5311 an error message in this case.
5314 *) Handle special case when X509_NAME is empty in X509 printing routines.
5317 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5318 positive and less than q.
5321 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5322 used: it isn't thread safe and the add_lock_callback should handle
5324 [Paul Rose <Paul.Rose@bridge.com>]
5326 *) Verify that incoming data obeys the block size in
5327 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5331 [Ulf Möller, Bodo Möller]
5333 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5334 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5335 when fixing the server behaviour for backwards-compatible 'client
5336 hello' messages. (Note that the attack is impractical against
5337 SSL 3.0 and TLS 1.0 anyway because length and version checking
5338 means that the probability of guessing a valid ciphertext is
5339 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5342 Before 0.9.5, the countermeasure (hide the error by generating a
5343 random 'decryption result') did not work properly because
5344 ERR_clear_error() was missing, meaning that SSL_get_error() would
5345 detect the supposedly ignored error.
5347 Both problems are now fixed.
5350 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5351 (previously it was 1024).
5354 *) Fix for compatibility mode trust settings: ignore trust settings
5355 unless some valid trust or reject settings are present.
5358 *) Fix for blowfish EVP: its a variable length cipher.
5361 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5362 parameters in DSA public key structures and return an error in the
5363 DSA routines if parameters are absent.
5366 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5367 in the current directory if neither $RANDFILE nor $HOME was set.
5368 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5369 caused some confusion to Windows users who haven't defined $HOME.
5370 Thus RAND_file_name() is changed again: e_os.h can define a
5371 DEFAULT_HOME, which will be used if $HOME is not set.
5372 For Windows, we use "C:"; on other platforms, we still require
5373 environment variables.
5375 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5376 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5377 having multiple threads call RAND_poll() concurrently.
5380 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5381 combination of a flag and a thread ID variable.
5382 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5383 flag), *other* threads can enter ssleay_add_bytes without obeying
5384 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5385 that they do not hold after the first thread unsets add_do_not_lock).
5388 *) Change bctest again: '-x' expressions are not available in all
5392 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5394 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5395 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5397 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5398 the default extension for executables, if any. Also, make the perl
5399 scripts that use symlink() to test if it really exists and use "cp"
5400 if it doesn't. All this made OpenSSL compilable and installable in
5404 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5405 If SEQUENCE is length is indefinite just set c->slen to the total
5406 amount of data available.
5407 [Steve Henson, reported by shige@FreeBSD.org]
5408 [This change does not apply to 0.9.7.]
5410 *) Change bctest to avoid here-documents inside command substitution
5411 (workaround for FreeBSD /bin/sh bug).
5412 For compatibility with Ultrix, avoid shell functions (introduced
5413 in the bctest version that searches along $PATH).
5416 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5417 with des_encrypt() defined on some operating systems, like Solaris
5421 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5422 On the Importance of Eliminating Errors in Cryptographic
5423 Computations, J. Cryptology 14 (2001) 2, 101-119,
5424 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5427 *) MIPS assembler BIGNUM division bug fix.
5430 *) Disabled incorrect Alpha assembler code.
5433 *) Fix PKCS#7 decode routines so they correctly update the length
5434 after reading an EOC for the EXPLICIT tag.
5436 [This change does not apply to 0.9.7.]
5438 *) Fix bug in PKCS#12 key generation routines. This was triggered
5439 if a 3DES key was generated with a 0 initial byte. Include
5440 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5441 (but broken) behaviour.
5444 *) Enhance bctest to search for a working bc along $PATH and print
5446 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5448 *) Fix memory leaks in err.c: free err_data string if necessary;
5449 don't write to the wrong index in ERR_set_error_data.
5452 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5456 *) Replace rdtsc with _emit statements for VC++ version 5.
5457 [Jeremy Cooper <jeremy@baymoo.org>]
5459 *) Make it possible to reuse SSLv2 sessions.
5462 *) In copy_email() check for >= 0 as a return value for
5463 X509_NAME_get_index_by_NID() since 0 is a valid index.
5464 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5466 *) Avoid coredump with unsupported or invalid public keys by checking if
5467 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5468 PKCS7_verify() fails with non detached data.
5471 *) Don't use getenv in library functions when run as setuid/setgid.
5472 New function OPENSSL_issetugid().
5475 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5476 due to incorrect handling of multi-threading:
5478 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5480 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5482 3. Count how many times MemCheck_off() has been called so that
5483 nested use can be treated correctly. This also avoids
5484 inband-signalling in the previous code (which relied on the
5485 assumption that thread ID 0 is impossible).
5488 *) Add "-rand" option also to s_client and s_server.
5491 *) Fix CPU detection on Irix 6.x.
5492 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5493 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5495 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5498 [This change does not apply to 0.9.7.]
5500 *) Use the cached encoding of an X509_NAME structure rather than
5501 copying it. This is apparently the reason for the libsafe "errors"
5502 but the code is actually correct.
5505 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5506 Bleichenbacher's DSA attack.
5507 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5508 to be set and top=0 forces the highest bit to be set; top=-1 is new
5509 and leaves the highest bit random.
5510 [Ulf Moeller, Bodo Moeller]
5512 *) In the NCONF_...-based implementations for CONF_... queries
5513 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5514 a temporary CONF structure with the data component set to NULL
5515 (which gives segmentation faults in lh_retrieve).
5516 Instead, use NULL for the CONF pointer in CONF_get_string and
5517 CONF_get_number (which may use environment variables) and directly
5518 return NULL from CONF_get_section.
5521 *) Fix potential buffer overrun for EBCDIC.
5524 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5525 keyUsage if basicConstraints absent for a CA.
5528 *) Make SMIME_write_PKCS7() write mail header values with a format that
5529 is more generally accepted (no spaces before the semicolon), since
5530 some programs can't parse those values properly otherwise. Also make
5531 sure BIO's that break lines after each write do not create invalid
5535 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5536 macros previously used would not encode an empty SEQUENCE OF
5537 and break the signature.
5539 [This change does not apply to 0.9.7.]
5541 *) Zero the premaster secret after deriving the master secret in
5545 *) Add some EVP_add_digest_alias registrations (as found in
5546 OpenSSL_add_all_digests()) to SSL_library_init()
5547 aka OpenSSL_add_ssl_algorithms(). This provides improved
5548 compatibility with peers using X.509 certificates
5549 with unconventional AlgorithmIdentifier OIDs.
5552 *) Fix for Irix with NO_ASM.
5553 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5555 *) ./config script fixes.
5556 [Ulf Moeller, Richard Levitte]
5558 *) Fix 'openssl passwd -1'.
5561 *) Change PKCS12_key_gen_asc() so it can cope with non null
5562 terminated strings whose length is passed in the passlen
5563 parameter, for example from PEM callbacks. This was done
5564 by adding an extra length parameter to asc2uni().
5565 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5567 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5568 call failed, free the DSA structure.
5571 *) Fix to uni2asc() to cope with zero length Unicode strings.
5572 These are present in some PKCS#12 files.
5575 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5576 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5577 when writing a 32767 byte record.
5578 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5580 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5581 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5583 (RSA objects have a reference count access to which is protected
5584 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5585 so they are meant to be shared between threads.)
5586 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5587 "Reddie, Steven" <Steven.Reddie@ca.com>]
5589 *) Fix a deadlock in CRYPTO_mem_leaks().
5592 *) Use better test patterns in bntest.
5595 *) rand_win.c fix for Borland C.
5598 *) BN_rshift bugfix for n == 0.
5601 *) Add a 'bctest' script that checks for some known 'bc' bugs
5602 so that 'make test' does not abort just because 'bc' is broken.
5605 *) Store verify_result within SSL_SESSION also for client side to
5606 avoid potential security hole. (Re-used sessions on the client side
5607 always resulted in verify_result==X509_V_OK, not using the original
5608 result of the server certificate verification.)
5611 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5612 SSL3_RT_APPLICATION_DATA, return 0.
5613 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5617 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5618 releases, have been re-implemented by renaming the previous
5619 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5620 and ssl3_read_internal, respectively, and adding 'peek' parameters
5621 to them. The new ssl[23]_{read,peek} functions are calls to
5622 ssl[23]_read_internal with the 'peek' flag set appropriately.
5623 A 'peek' parameter has also been added to ssl3_read_bytes, which
5624 does the actual work for ssl3_read_internal.
5627 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5628 the method-specific "init()" handler. Also clean up ex_data after
5629 calling the method-specific "finish()" handler. Previously, this was
5630 happening the other way round.
5633 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5634 The previous value, 12, was not always sufficient for BN_mod_exp().
5637 *) Make sure that shared libraries get the internal name engine with
5638 the full version number and not just 0. This should mark the
5639 shared libraries as not backward compatible. Of course, this should
5640 be changed again when we can guarantee backward binary compatibility.
5643 *) Fix typo in get_cert_by_subject() in by_dir.c
5644 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5646 *) Rework the system to generate shared libraries:
5648 - Make note of the expected extension for the shared libraries and
5649 if there is a need for symbolic links from for example libcrypto.so.0
5650 to libcrypto.so.0.9.7. There is extended info in Configure for
5653 - Make as few rebuilds of the shared libraries as possible.
5655 - Still avoid linking the OpenSSL programs with the shared libraries.
5657 - When installing, install the shared libraries separately from the
5661 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5663 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5664 and not in SSL_clear because the latter is also used by the
5665 accept/connect functions; previously, the settings made by
5666 SSL_set_read_ahead would be lost during the handshake.
5667 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5669 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5670 Previously, it would create entries for disableed algorithms no
5674 *) Added several new manual pages for SSL_* function.
5677 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5679 *) In ssl23_get_client_hello, generate an error message when faced
5680 with an initial SSL 3.0/TLS record that is too small to contain the
5681 first two bytes of the ClientHello message, i.e. client_version.
5682 (Note that this is a pathologic case that probably has never happened
5683 in real life.) The previous approach was to use the version number
5684 from the record header as a substitute; but our protocol choice
5685 should not depend on that one because it is not authenticated
5686 by the Finished messages.
5689 *) More robust randomness gathering functions for Windows.
5690 [Jeffrey Altman <jaltman@columbia.edu>]
5692 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5693 not set then we don't setup the error code for issuer check errors
5694 to avoid possibly overwriting other errors which the callback does
5695 handle. If an application does set the flag then we assume it knows
5696 what it is doing and can handle the new informational codes
5700 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5701 a general "ANY" type, as such it should be able to decode anything
5702 including tagged types. However it didn't check the class so it would
5703 wrongly interpret tagged types in the same way as their universal
5704 counterpart and unknown types were just rejected. Changed so that the
5705 tagged and unknown types are handled in the same way as a SEQUENCE:
5706 that is the encoding is stored intact. There is also a new type
5707 "V_ASN1_OTHER" which is used when the class is not universal, in this
5708 case we have no idea what the actual type is so we just lump them all
5712 *) On VMS, stdout may very well lead to a file that is written to
5713 in a record-oriented fashion. That means that every write() will
5714 write a separate record, which will be read separately by the
5715 programs trying to read from it. This can be very confusing.
5717 The solution is to put a BIO filter in the way that will buffer
5718 text until a linefeed is reached, and then write everything a
5719 line at a time, so every record written will be an actual line,
5720 not chunks of lines and not (usually doesn't happen, but I've
5721 seen it once) several lines in one record. BIO_f_linebuffer() is
5724 Currently, it's a VMS-only method, because that's where it has
5725 been tested well enough.
5728 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5729 it can return incorrect results.
5730 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5731 but it was in 0.9.6-beta[12].)
5734 *) Disable the check for content being present when verifying detached
5735 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5736 include zero length content when signing messages.
5739 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5740 BIO_ctrl (for BIO pairs).
5743 *) Add DSO method for VMS.
5746 *) Bug fix: Montgomery multiplication could produce results with the
5750 *) Add RPM specification openssl.spec and modify it to build three
5751 packages. The default package contains applications, application
5752 documentation and run-time libraries. The devel package contains
5753 include files, static libraries and function documentation. The
5754 doc package contains the contents of the doc directory. The original
5755 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5758 *) Add a large number of documentation files for many SSL routines.
5759 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5761 *) Add a configuration entry for Sony News 4.
5762 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5764 *) Don't set the two most significant bits to one when generating a
5765 random number < q in the DSA library.
5768 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5769 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5770 the underlying transport is blocking) if a handshake took place.
5771 (The default behaviour is needed by applications such as s_client
5772 and s_server that use select() to determine when to use SSL_read;
5773 but for applications that know in advance when to expect data, it
5774 just makes things more complicated.)
5777 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5781 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5782 work better on such systems.
5783 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5785 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5786 Update PKCS12_parse() so it copies the friendlyName and the
5787 keyid to the certificates aux info.
5790 *) Fix bug in PKCS7_verify() which caused an infinite loop
5791 if there was more than one signature.
5792 [Sven Uszpelkat <su@celocom.de>]
5794 *) Major change in util/mkdef.pl to include extra information
5795 about each symbol, as well as presentig variables as well
5796 as functions. This change means that there's n more need
5797 to rebuild the .num files when some algorithms are excluded.
5800 *) Allow the verify time to be set by an application,
5801 rather than always using the current time.
5804 *) Phase 2 verify code reorganisation. The certificate
5805 verify code now looks up an issuer certificate by a
5806 number of criteria: subject name, authority key id
5807 and key usage. It also verifies self signed certificates
5808 by the same criteria. The main comparison function is
5809 X509_check_issued() which performs these checks.
5811 Lot of changes were necessary in order to support this
5812 without completely rewriting the lookup code.
5814 Authority and subject key identifier are now cached.
5816 The LHASH 'certs' is X509_STORE has now been replaced
5817 by a STACK_OF(X509_OBJECT). This is mainly because an
5818 LHASH can't store or retrieve multiple objects with
5819 the same hash value.
5821 As a result various functions (which were all internal
5822 use only) have changed to handle the new X509_STORE
5823 structure. This will break anything that messed round
5824 with X509_STORE internally.
5826 The functions X509_STORE_add_cert() now checks for an
5827 exact match, rather than just subject name.
5829 The X509_STORE API doesn't directly support the retrieval
5830 of multiple certificates matching a given criteria, however
5831 this can be worked round by performing a lookup first
5832 (which will fill the cache with candidate certificates)
5833 and then examining the cache for matches. This is probably
5834 the best we can do without throwing out X509_LOOKUP
5835 entirely (maybe later...).
5837 The X509_VERIFY_CTX structure has been enhanced considerably.
5839 All certificate lookup operations now go via a get_issuer()
5840 callback. Although this currently uses an X509_STORE it
5841 can be replaced by custom lookups. This is a simple way
5842 to bypass the X509_STORE hackery necessary to make this
5843 work and makes it possible to use more efficient techniques
5844 in future. A very simple version which uses a simple
5845 STACK for its trusted certificate store is also provided
5846 using X509_STORE_CTX_trusted_stack().
5848 The verify_cb() and verify() callbacks now have equivalents
5849 in the X509_STORE_CTX structure.
5851 X509_STORE_CTX also has a 'flags' field which can be used
5852 to customise the verify behaviour.
5855 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5856 excludes S/MIME capabilities.
5859 *) When a certificate request is read in keep a copy of the
5860 original encoding of the signed data and use it when outputing
5861 again. Signatures then use the original encoding rather than
5862 a decoded, encoded version which may cause problems if the
5863 request is improperly encoded.
5866 *) For consistency with other BIO_puts implementations, call
5867 buffer_write(b, ...) directly in buffer_puts instead of calling
5870 In BIO_puts, increment b->num_write as in BIO_write.
5871 [Peter.Sylvester@EdelWeb.fr]
5873 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5874 BN_zero, we may not return a BIGNUM with an array consisting of
5878 *) Avoid calling abort() from within the library when problems are
5879 detected, except if preprocessor symbols have been defined
5880 (such as REF_CHECK, BN_DEBUG etc.).
5883 *) New openssl application 'rsautl'. This utility can be
5884 used for low level RSA operations. DER public key
5885 BIO/fp routines also added.
5888 *) New Configure entry and patches for compiling on QNX 4.
5889 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5891 *) A demo state-machine implementation was sponsored by
5892 Nuron (http://www.nuron.com/) and is now available in
5893 demos/state_machine.
5896 *) New options added to the 'dgst' utility for signature
5897 generation and verification.
5900 *) Unrecognized PKCS#7 content types are now handled via a
5901 catch all ASN1_TYPE structure. This allows unsupported
5902 types to be stored as a "blob" and an application can
5903 encode and decode it manually.
5906 *) Fix various signed/unsigned issues to make a_strex.c
5908 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5910 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5911 length if passed a buffer. ASN1_INTEGER_to_BN failed
5912 if passed a NULL BN and its argument was negative.
5913 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5915 *) Modification to PKCS#7 encoding routines to output definite
5916 length encoding. Since currently the whole structures are in
5917 memory there's not real point in using indefinite length
5918 constructed encoding. However if OpenSSL is compiled with
5919 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5922 *) Added BIO_vprintf() and BIO_vsnprintf().
5925 *) Added more prefixes to parse for in the the strings written
5926 through a logging bio, to cover all the levels that are available
5927 through syslog. The prefixes are now:
5929 PANIC, EMERG, EMR => LOG_EMERG
5930 ALERT, ALR => LOG_ALERT
5931 CRIT, CRI => LOG_CRIT
5932 ERROR, ERR => LOG_ERR
5933 WARNING, WARN, WAR => LOG_WARNING
5934 NOTICE, NOTE, NOT => LOG_NOTICE
5935 INFO, INF => LOG_INFO
5936 DEBUG, DBG => LOG_DEBUG
5938 and as before, if none of those prefixes are present at the
5939 beginning of the string, LOG_ERR is chosen.
5941 On Win32, the LOG_* levels are mapped according to this:
5943 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5944 LOG_WARNING => EVENTLOG_WARNING_TYPE
5945 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5949 *) Made it possible to reconfigure with just the configuration
5950 argument "reconf" or "reconfigure". The command line arguments
5951 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5952 and are retrieved from there when reconfiguring.
5956 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5958 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5961 *) The obj_dat.pl script was messing up the sorting of object
5962 names. The reason was that it compared the quoted version
5963 of strings as a result "OCSP" > "OCSP Signing" because
5964 " > SPACE. Changed script to store unquoted versions of
5965 names and add quotes on output. It was also omitting some
5966 names from the lookup table if they were given a default
5967 value (that is if SN is missing it is given the same
5968 value as LN and vice versa), these are now added on the
5969 grounds that if an object has a name we should be able to
5970 look it up. Finally added warning output when duplicate
5971 short or long names are found.
5974 *) Changes needed for Tandem NSK.
5975 [Scott Uroff <scott@xypro.com>]
5977 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5978 RSA_padding_check_SSLv23(), special padding was never detected
5979 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5980 version rollback attacks was not effective.
5982 In s23_clnt.c, don't use special rollback-attack detection padding
5983 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5984 client; similarly, in s23_srvr.c, don't do the rollback check if
5985 SSL 2.0 is the only protocol enabled in the server.
5988 *) Make it possible to get hexdumps of unprintable data with 'openssl
5989 asn1parse'. By implication, the functions ASN1_parse_dump() and
5990 BIO_dump_indent() are added.
5993 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5994 these print out strings and name structures based on various
5995 flags including RFC2253 support and proper handling of
5996 multibyte characters. Added options to the 'x509' utility
5997 to allow the various flags to be set.
6000 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6001 Also change the functions X509_cmp_current_time() and
6002 X509_gmtime_adj() work with an ASN1_TIME structure,
6003 this will enable certificates using GeneralizedTime in validity
6004 dates to be checked.
6007 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6008 negative public key encodings) on by default,
6009 NO_NEG_PUBKEY_BUG can be set to disable it.
6012 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6013 content octets. An i2c_ASN1_OBJECT is unnecessary because
6014 the encoding can be trivially obtained from the structure.
6017 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6018 not read locks (CRYPTO_r_[un]lock).
6021 *) A first attempt at creating official support for shared
6022 libraries through configuration. I've kept it so the
6023 default is static libraries only, and the OpenSSL programs
6024 are always statically linked for now, but there are
6025 preparations for dynamic linking in place.
6026 This has been tested on Linux and Tru64.
6029 *) Randomness polling function for Win9x, as described in:
6030 Peter Gutmann, Software Generation of Practically Strong
6034 *) Fix so PRNG is seeded in req if using an already existing
6038 *) New options to smime application. -inform and -outform
6039 allow alternative formats for the S/MIME message including
6040 PEM and DER. The -content option allows the content to be
6041 specified separately. This should allow things like Netscape
6042 form signing output easier to verify.
6045 *) Fix the ASN1 encoding of tags using the 'long form'.
6048 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6049 STRING types. These convert content octets to and from the
6050 underlying type. The actual tag and length octets are
6051 already assumed to have been read in and checked. These
6052 are needed because all other string types have virtually
6053 identical handling apart from the tag. By having versions
6054 of the ASN1 functions that just operate on content octets
6055 IMPLICIT tagging can be handled properly. It also allows
6056 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6057 and ASN1_INTEGER are identical apart from the tag.
6060 *) Change the handling of OID objects as follows:
6062 - New object identifiers are inserted in objects.txt, following
6063 the syntax given in objects.README.
6064 - objects.pl is used to process obj_mac.num and create a new
6066 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6069 This is currently kind of a hack, and the perl code in objects.pl
6070 isn't very elegant, but it works as I intended. The simplest way
6071 to check that it worked correctly is to look in obj_dat.h and
6072 check the array nid_objs and make sure the objects haven't moved
6073 around (this is important!). Additions are OK, as well as
6074 consistent name changes.
6077 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6080 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6081 The given file adds to whatever has already been seeded into the
6082 random pool through the RANDFILE configuration file option or
6083 environment variable, or the default random state file.
6086 *) mkstack.pl now sorts each macro group into lexical order.
6087 Previously the output order depended on the order the files
6088 appeared in the directory, resulting in needless rewriting
6092 *) Patches to make OpenSSL compile under Win32 again. Mostly
6093 work arounds for the VC++ problem that it treats func() as
6094 func(void). Also stripped out the parts of mkdef.pl that
6095 added extra typesafe functions: these no longer exist.
6098 *) Reorganisation of the stack code. The macros are now all
6099 collected in safestack.h . Each macro is defined in terms of
6100 a "stack macro" of the form SKM_<name>(type, a, b). The
6101 DEBUG_SAFESTACK is now handled in terms of function casts,
6102 this has the advantage of retaining type safety without the
6103 use of additional functions. If DEBUG_SAFESTACK is not defined
6104 then the non typesafe macros are used instead. Also modified the
6105 mkstack.pl script to handle the new form. Needs testing to see
6106 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6107 the default if no major problems. Similar behaviour for ASN1_SET_OF
6108 and PKCS12_STACK_OF.
6111 *) When some versions of IIS use the 'NET' form of private key the
6112 key derivation algorithm is different. Normally MD5(password) is
6113 used as a 128 bit RC4 key. In the modified case
6114 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6115 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6116 as the old Netscape_RSA functions except they have an additional
6117 'sgckey' parameter which uses the modified algorithm. Also added
6118 an -sgckey command line option to the rsa utility. Thanks to
6119 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6120 algorithm to openssl-dev.
6123 *) The evp_local.h macros were using 'c.##kname' which resulted in
6124 invalid expansion on some systems (SCO 5.0.5 for example).
6125 Corrected to 'c.kname'.
6126 [Phillip Porch <root@theporch.com>]
6128 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6129 a STACK of email addresses from a certificate or request, these look
6130 in the subject name and the subject alternative name extensions and
6131 omit any duplicate addresses.
6134 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6135 This makes DSA verification about 2 % faster.
6138 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6139 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6140 plus overhead for 1024 bit moduli).
6141 This makes exponentiations about 0.5 % faster for 1024 bit
6142 exponents (as measured by "openssl speed rsa2048").
6145 *) Rename memory handling macros to avoid conflicts with other
6147 Malloc => OPENSSL_malloc
6148 Malloc_locked => OPENSSL_malloc_locked
6149 Realloc => OPENSSL_realloc
6150 Free => OPENSSL_free
6153 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6154 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6157 *) CygWin32 support.
6158 [John Jarvie <jjarvie@newsguy.com>]
6160 *) The type-safe stack code has been rejigged. It is now only compiled
6161 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6162 by default all type-specific stack functions are "#define"d back to
6163 standard stack functions. This results in more streamlined output
6164 but retains the type-safety checking possibilities of the original
6168 *) The STACK code has been cleaned up, and certain type declarations
6169 that didn't make a lot of sense have been brought in line. This has
6170 also involved a cleanup of sorts in safestack.h to more correctly
6171 map type-safe stack functions onto their plain stack counterparts.
6172 This work has also resulted in a variety of "const"ifications of
6173 lots of the code, especially "_cmp" operations which should normally
6174 be prototyped with "const" parameters anyway.
6177 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6178 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6179 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6180 where all of 'md' is used each time the PRNG is used, but 'state'
6181 is used only indexed by a cyclic counter. As entropy may not be
6182 well distributed from the beginning, 'md' is important as a
6183 chaining variable. However, the output function chains only half
6184 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6185 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6186 in all of 'state' being rewritten, with the new values depending
6187 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6190 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6191 the handshake is continued after ssl_verify_cert_chain();
6192 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6193 can lead to 'unexplainable' connection aborts later.
6194 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6196 *) Major EVP API cipher revision.
6197 Add hooks for extra EVP features. This allows various cipher
6198 parameters to be set in the EVP interface. Support added for variable
6199 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6200 setting of RC2 and RC5 parameters.
6202 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6205 Remove lots of duplicated code from the EVP library. For example *every*
6206 cipher init() function handles the 'iv' in the same way according to the
6207 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6208 for CFB and OFB modes they zero ctx->num.
6210 New functionality allows removal of S/MIME code RC2 hack.
6212 Most of the routines have the same form and so can be declared in terms
6215 By shifting this to the top level EVP_CipherInit() it can be removed from
6216 all individual ciphers. If the cipher wants to handle IVs or keys
6217 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6220 Change lots of functions like EVP_EncryptUpdate() to now return a
6221 value: although software versions of the algorithms cannot fail
6222 any installed hardware versions can.
6225 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6226 this option is set, tolerate broken clients that send the negotiated
6227 protocol version number instead of the requested protocol version
6231 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6232 i.e. non-zero for export ciphersuites, zero otherwise.
6233 Previous versions had this flag inverted, inconsistent with
6234 rsa_tmp_cb (..._TMP_RSA_CB).
6235 [Bodo Moeller; problem reported by Amit Chopra]
6237 *) Add missing DSA library text string. Work around for some IIS
6238 key files with invalid SEQUENCE encoding.
6241 *) Add a document (doc/standards.txt) that list all kinds of standards
6242 and so on that are implemented in OpenSSL.
6245 *) Enhance c_rehash script. Old version would mishandle certificates
6246 with the same subject name hash and wouldn't handle CRLs at all.
6247 Added -fingerprint option to crl utility, to support new c_rehash
6251 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6254 *) Fix for SSL server purpose checking. Server checking was
6255 rejecting certificates which had extended key usage present
6256 but no ssl client purpose.
6257 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6259 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6260 is a little unclear about how a blank password is handled.
6261 Since the password in encoded as a BMPString with terminating
6262 double NULL a zero length password would end up as just the
6263 double NULL. However no password at all is different and is
6264 handled differently in the PKCS#12 key generation code. NS
6265 treats a blank password as zero length. MSIE treats it as no
6266 password on export: but it will try both on import. We now do
6267 the same: PKCS12_parse() tries zero length and no password if
6268 the password is set to "" or NULL (NULL is now a valid password:
6269 it wasn't before) as does the pkcs12 application.
6272 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6273 perror when PEM_read_bio_X509_REQ fails, the error message must
6274 be obtained from the error queue.
6277 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6278 it in ERR_remove_state if appropriate, and change ERR_get_state
6279 accordingly to avoid race conditions (this is necessary because
6280 thread_hash is no longer constant once set).
6283 *) Bugfix for linux-elf makefile.one.
6286 *) RSA_get_default_method() will now cause a default
6287 RSA_METHOD to be chosen if one doesn't exist already.
6288 Previously this was only set during a call to RSA_new()
6289 or RSA_new_method(NULL) meaning it was possible for
6290 RSA_get_default_method() to return NULL.
6293 *) Added native name translation to the existing DSO code
6294 that will convert (if the flag to do so is set) filenames
6295 that are sufficiently small and have no path information
6296 into a canonical native form. Eg. "blah" converted to
6297 "libblah.so" or "blah.dll" etc.
6300 *) New function ERR_error_string_n(e, buf, len) which is like
6301 ERR_error_string(e, buf), but writes at most 'len' bytes
6302 including the 0 terminator. For ERR_error_string_n, 'buf'
6304 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6306 *) CONF library reworked to become more general. A new CONF
6307 configuration file reader "class" is implemented as well as a
6308 new functions (NCONF_*, for "New CONF") to handle it. The now
6309 old CONF_* functions are still there, but are reimplemented to
6310 work in terms of the new functions. Also, a set of functions
6311 to handle the internal storage of the configuration data is
6312 provided to make it easier to write new configuration file
6313 reader "classes" (I can definitely see something reading a
6314 configuration file in XML format, for example), called _CONF_*,
6315 or "the configuration storage API"...
6317 The new configuration file reading functions are:
6319 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6320 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6322 NCONF_default, NCONF_WIN32
6324 NCONF_dump_fp, NCONF_dump_bio
6326 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6327 NCONF_new creates a new CONF object. This works in the same way
6328 as other interfaces in OpenSSL, like the BIO interface.
6329 NCONF_dump_* dump the internal storage of the configuration file,
6330 which is useful for debugging. All other functions take the same
6331 arguments as the old CONF_* functions wth the exception of the
6332 first that must be a `CONF *' instead of a `LHASH *'.
6334 To make it easer to use the new classes with the old CONF_* functions,
6335 the function CONF_set_default_method is provided.
6338 *) Add '-tls1' option to 'openssl ciphers', which was already
6339 mentioned in the documentation but had not been implemented.
6340 (This option is not yet really useful because even the additional
6341 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6344 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6345 OpenSSL-based applications) load shared libraries and bind to
6346 them in a portable way.
6347 [Geoff Thorpe, with contributions from Richard Levitte]
6349 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6351 *) Make sure _lrotl and _lrotr are only used with MSVC.
6353 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6354 (the default implementation of RAND_status).
6356 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6357 to '-clrext' (= clear extensions), as intended and documented.
6358 [Bodo Moeller; inconsistency pointed out by Michael Attili
6361 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6362 was larger than the MD block size.
6363 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6365 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6366 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6367 using the passed key: if the passed key was a private key the result
6368 of X509_print(), for example, would be to print out all the private key
6372 *) des_quad_cksum() byte order bug fix.
6373 [Ulf Möller, using the problem description in krb4-0.9.7, where
6374 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6376 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6378 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6380 *) For easily testing in shell scripts whether some command
6381 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6382 returns with exit code 0 iff no command of the given name is available.
6383 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6384 the output goes to stdout and nothing is printed to stderr.
6385 Additional arguments are always ignored.
6387 Since for each cipher there is a command of the same name,
6388 the 'no-cipher' compilation switches can be tested this way.
6390 ('openssl no-XXX' is not able to detect pseudo-commands such
6391 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6394 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6397 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6398 is set; it will be thrown away anyway because each handshake creates
6400 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6401 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6402 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6403 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6406 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6407 'Q' and 'R' lose their special meanings (quit/renegotiate).
6408 This is part of what -quiet does; unlike -quiet, -ign_eof
6409 does not suppress any output.
6412 *) Add compatibility options to the purpose and trust code. The
6413 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6414 accepts a certificate or CA, this was the previous behaviour,
6415 with all the associated security issues.
6417 X509_TRUST_COMPAT is the old trust behaviour: only and
6418 automatically trust self signed roots in certificate store. A
6419 new trust setting X509_TRUST_DEFAULT is used to specify that
6420 a purpose has no associated trust setting and it should instead
6421 use the value in the default purpose.
6424 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6425 and fix a memory leak.
6428 *) In util/mkerr.pl (which implements 'make errors'), preserve
6429 reason strings from the previous version of the .c file, as
6430 the default to have only downcase letters (and digits) in
6431 automatically generated reasons codes is not always appropriate.
6434 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6435 using strerror. Previously, ERR_reason_error_string() returned
6436 library names as reason strings for SYSerr; but SYSerr is a special
6437 case where small numbers are errno values, not library numbers.
6440 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6441 converts DSA parameters into DH parameters. (When creating parameters,
6442 DSA_generate_parameters is used.)
6445 *) Include 'length' (recommended exponent length) in C code generated
6446 by 'openssl dhparam -C'.
6449 *) The second argument to set_label in perlasm was already being used
6450 so couldn't be used as a "file scope" flag. Moved to third argument
6454 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6455 instead of RAND_bytes for encryption IVs and salts.
6458 *) Include RAND_status() into RAND_METHOD instead of implementing
6459 it only for md_rand.c Otherwise replacing the PRNG by calling
6460 RAND_set_rand_method would be impossible.
6463 *) Don't let DSA_generate_key() enter an infinite loop if the random
6464 number generation fails.
6467 *) New 'rand' application for creating pseudo-random output.
6470 *) Added configuration support for Linux/IA64
6471 [Rolf Haberrecker <rolf@suse.de>]
6473 *) Assembler module support for Mingw32.
6476 *) Shared library support for HPUX (in shlib/).
6477 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6479 *) Shared library support for Solaris gcc.
6480 [Lutz Behnke <behnke@trustcenter.de>]
6482 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6484 *) PKCS7_encrypt() was adding text MIME headers twice because they
6485 were added manually and by SMIME_crlf_copy().
6488 *) In bntest.c don't call BN_rand with zero bits argument.
6489 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6491 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6492 case was implemented. This caused BN_div_recp() to fail occasionally.
6495 *) Add an optional second argument to the set_label() in the perl
6496 assembly language builder. If this argument exists and is set
6497 to 1 it signals that the assembler should use a symbol whose
6498 scope is the entire file, not just the current function. This
6499 is needed with MASM which uses the format label:: for this scope.
6500 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6502 *) Change the ASN1 types so they are typedefs by default. Before
6503 almost all types were #define'd to ASN1_STRING which was causing
6504 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6508 *) Change names of new functions to the new get1/get0 naming
6509 convention: After 'get1', the caller owns a reference count
6510 and has to call ..._free; 'get0' returns a pointer to some
6511 data structure without incrementing reference counters.
6512 (Some of the existing 'get' functions increment a reference
6513 counter, some don't.)
6514 Similarly, 'set1' and 'add1' functions increase reference
6515 counters or duplicate objects.
6518 *) Allow for the possibility of temp RSA key generation failure:
6519 the code used to assume it always worked and crashed on failure.
6522 *) Fix potential buffer overrun problem in BIO_printf().
6523 [Ulf Möller, using public domain code by Patrick Powell; problem
6524 pointed out by David Sacerdote <das33@cornell.edu>]
6526 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6527 RAND_egd() and RAND_status(). In the command line application,
6528 the EGD socket can be specified like a seed file using RANDFILE
6532 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6533 Some CAs (e.g. Verisign) distribute certificates in this form.
6536 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6537 list to exclude them. This means that no special compilation option
6538 is needed to use anonymous DH: it just needs to be included in the
6542 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6543 EVP_MD_type. The old functionality is available in a new macro called
6544 EVP_MD_md(). Change code that uses it and update docs.
6547 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6548 where the 'void *' argument is replaced by a function pointer argument.
6549 Previously 'void *' was abused to point to functions, which works on
6550 many platforms, but is not correct. As these functions are usually
6551 called by macros defined in OpenSSL header files, most source code
6552 should work without changes.
6555 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6556 sections with information on -D... compiler switches used for
6557 compiling the library so that applications can see them. To enable
6558 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6559 must be defined. E.g.,
6560 #define OPENSSL_ALGORITHM_DEFINES
6561 #include <openssl/opensslconf.h>
6562 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6563 [Richard Levitte, Ulf and Bodo Möller]
6565 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6569 *) Change the 'other' type in certificate aux info to a STACK_OF
6570 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6571 the required ASN1 format: arbitrary types determined by an OID.
6574 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6575 argument to 'req'. This is not because the function is newer or
6576 better than others it just uses the work 'NEW' in the certificate
6577 request header lines. Some software needs this.
6580 *) Reorganise password command line arguments: now passwords can be
6581 obtained from various sources. Delete the PEM_cb function and make
6582 it the default behaviour: i.e. if the callback is NULL and the
6583 usrdata argument is not NULL interpret it as a null terminated pass
6584 phrase. If usrdata and the callback are NULL then the pass phrase
6585 is prompted for as usual.
6588 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6589 the support is automatically enabled. The resulting binaries will
6590 autodetect the card and use it if present.
6591 [Ben Laurie and Compaq Inc.]
6593 *) Work around for Netscape hang bug. This sends certificate request
6594 and server done in one record. Since this is perfectly legal in the
6595 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6596 the bugs/SSLv3 entry for more info.
6599 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6602 *) Add -rand argument to smime and pkcs12 applications and read/write
6606 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6609 *) Add command line password options to the remaining applications.
6612 *) Bug fix for BN_div_recp() for numerators with an even number of
6616 *) More tests in bntest.c, and changed test_bn output.
6619 *) ./config recognizes MacOS X now.
6622 *) Bug fix for BN_div() when the first words of num and divsor are
6623 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6626 *) Add support for various broken PKCS#8 formats, and command line
6627 options to produce them.
6630 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6631 get temporary BIGNUMs from a BN_CTX.
6634 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6638 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6639 include a #define from the old name to the new. The original intent
6640 was that statically linked binaries could for example just call
6641 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6642 link with digests. This never worked becayse SSLeay_add_all_digests()
6643 and SSLeay_add_all_ciphers() were in the same source file so calling
6644 one would link with the other. They are now in separate source files.
6647 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6650 *) Use a less unusual form of the Miller-Rabin primality test (it used
6651 a binary algorithm for exponentiation integrated into the Miller-Rabin
6652 loop, our standard modexp algorithms are faster).
6655 *) Support for the EBCDIC character set completed.
6656 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6658 *) Source code cleanups: use const where appropriate, eliminate casts,
6659 use void * instead of char * in lhash.
6662 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6663 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6664 this the server could overwrite ephemeral keys that the client
6668 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6669 using 50 iterations of the Rabin-Miller test.
6671 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6672 iterations of the Rabin-Miller test as required by the appendix
6673 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6674 As BN_is_prime_fasttest includes trial division, DSA parameter
6675 generation becomes much faster.
6677 This implies a change for the callback functions in DSA_is_prime
6678 and DSA_generate_parameters: The callback function is called once
6679 for each positive witness in the Rabin-Miller test, not just
6680 occasionally in the inner loop; and the parameters to the
6681 callback function now provide an iteration count for the outer
6682 loop rather than for the current invocation of the inner loop.
6683 DSA_generate_parameters additionally can call the callback
6684 function with an 'iteration count' of -1, meaning that a
6685 candidate has passed the trial division test (when q is generated
6686 from an application-provided seed, trial division is skipped).
6689 *) New function BN_is_prime_fasttest that optionally does trial
6690 division before starting the Rabin-Miller test and has
6691 an additional BN_CTX * argument (whereas BN_is_prime always
6692 has to allocate at least one BN_CTX).
6693 'callback(1, -1, cb_arg)' is called when a number has passed the
6694 trial division stage.
6697 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6701 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6704 *) New function BN_pseudo_rand().
6707 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6708 bignum version of BN_from_montgomery() with the working code from
6709 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6713 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6714 made it impossible to use the same SSL_SESSION data structure in
6715 SSL2 clients in multiple threads.
6718 *) The return value of RAND_load_file() no longer counts bytes obtained
6719 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6720 to seed the PRNG (previously an explicit byte count was required).
6721 [Ulf Möller, Bodo Möller]
6723 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6724 used (char *) instead of (void *) and had casts all over the place.
6727 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6730 *) Retain source code compatibility for BN_prime_checks macro:
6731 BN_is_prime(..., BN_prime_checks, ...) now uses
6732 BN_prime_checks_for_size to determine the appropriate number of
6733 Rabin-Miller iterations.
6736 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6737 DH_CHECK_P_NOT_SAFE_PRIME.
6738 (Check if this is true? OpenPGP calls them "strong".)
6741 *) Merge the functionality of "dh" and "gendh" programs into a new program
6742 "dhparam". The old programs are retained for now but will handle DH keys
6743 (instead of parameters) in future.
6746 *) Make the ciphers, s_server and s_client programs check the return values
6747 when a new cipher list is set.
6750 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6751 ciphers. Before when the 56bit ciphers were enabled the sorting was
6754 The syntax for the cipher sorting has been extended to support sorting by
6755 cipher-strength (using the strength_bits hard coded in the tables).
6756 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6758 Fix a bug in the cipher-command parser: when supplying a cipher command
6759 string with an "undefined" symbol (neither command nor alphanumeric
6760 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6761 an error is flagged.
6763 Due to the strength-sorting extension, the code of the
6764 ssl_create_cipher_list() function was completely rearranged. I hope that
6765 the readability was also increased :-)
6766 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6768 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6769 for the first serial number and places 2 in the serial number file. This
6770 avoids problems when the root CA is created with serial number zero and
6771 the first user certificate has the same issuer name and serial number
6775 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6776 the new code. Add documentation for this stuff.
6779 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6780 X509_*() to X509at_*() on the grounds that they don't handle X509
6781 structures and behave in an analagous way to the X509v3 functions:
6782 they shouldn't be called directly but wrapper functions should be used
6785 So we also now have some wrapper functions that call the X509at functions
6786 when passed certificate requests. (TO DO: similar things can be done with
6787 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6788 things. Some of these need some d2i or i2d and print functionality
6789 because they handle more complex structures.)
6792 *) Add missing #ifndefs that caused missing symbols when building libssl
6793 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6794 NO_RSA in ssl/s2*.c.
6795 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6797 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6798 has a return value which indicates the quality of the random data
6799 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6800 error queue. New function RAND_pseudo_bytes() generates output that is
6801 guaranteed to be unique but not unpredictable. RAND_add is like
6802 RAND_seed, but takes an extra argument for an entropy estimate
6803 (RAND_seed always assumes full entropy).
6806 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6807 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6808 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6809 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6810 false-positive rate of at most 2^-80 for random input.
6813 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6816 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6817 in the 0.9.5 release), this returns the chain
6818 from an X509_CTX structure with a dup of the stack and all
6819 the X509 reference counts upped: so the stack will exist
6820 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6823 Also make SSL_SESSION_print() print out the verify return
6827 *) Add manpage for the pkcs12 command. Also change the default
6828 behaviour so MAC iteration counts are used unless the new
6829 -nomaciter option is used. This improves file security and
6830 only older versions of MSIE (4.0 for example) need it.
6833 *) Honor the no-xxx Configure options when creating .DEF files.
6836 *) Add PKCS#10 attributes to field table: challengePassword,
6837 unstructuredName and unstructuredAddress. These are taken from
6838 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6839 international characters are used.
6841 More changes to X509_ATTRIBUTE code: allow the setting of types
6842 based on strings. Remove the 'loc' parameter when adding
6843 attributes because these will be a SET OF encoding which is sorted
6847 *) Initial changes to the 'req' utility to allow request generation
6848 automation. This will allow an application to just generate a template
6849 file containing all the field values and have req construct the
6852 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6853 used all over the place including certificate requests and PKCS#7
6854 structures. They are currently handled manually where necessary with
6855 some primitive wrappers for PKCS#7. The new functions behave in a
6856 manner analogous to the X509 extension functions: they allow
6857 attributes to be looked up by NID and added.
6859 Later something similar to the X509V3 code would be desirable to
6860 automatically handle the encoding, decoding and printing of the
6861 more complex types. The string types like challengePassword can
6862 be handled by the string table functions.
6864 Also modified the multi byte string table handling. Now there is
6865 a 'global mask' which masks out certain types. The table itself
6866 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6867 is useful when for example there is only one permissible type
6868 (as in countryName) and using the mask might result in no valid
6872 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6873 SSL_get_peer_finished to allow applications to obtain the latest
6874 Finished messages sent to the peer or expected from the peer,
6875 respectively. (SSL_get_peer_finished is usually the Finished message
6876 actually received from the peer, otherwise the protocol will be aborted.)
6878 As the Finished message are message digests of the complete handshake
6879 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6880 be used for external authentication procedures when the authentication
6881 provided by SSL/TLS is not desired or is not enough.
6884 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6885 the host supports BWX extension and if Compaq C is present on the
6886 $PATH. Just exploiting of the BWX extension results in 20-30%
6887 performance kick for some algorithms, e.g. DES and RC4 to mention
6888 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6892 *) Add support for MS "fast SGC". This is arguably a violation of the
6893 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6894 weak crypto and after checking the certificate is SGC a second one
6895 with strong crypto. MS SGC stops the first handshake after receiving
6896 the server certificate message and sends a second client hello. Since
6897 a server will typically do all the time consuming operations before
6898 expecting any further messages from the client (server key exchange
6899 is the most expensive) there is little difference between the two.
6901 To get OpenSSL to support MS SGC we have to permit a second client
6902 hello message after we have sent server done. In addition we have to
6903 reset the MAC if we do get this second client hello.
6906 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6907 if a DER encoded private key is RSA or DSA traditional format. Changed
6908 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6909 format DER encoded private key. Newer code should use PKCS#8 format which
6910 has the key type encoded in the ASN1 structure. Added DER private key
6911 support to pkcs8 application.
6914 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6915 ciphersuites has been selected (as required by the SSL 3/TLS 1
6916 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6917 is set, we interpret this as a request to violate the specification
6918 (the worst that can happen is a handshake failure, and 'correct'
6919 behaviour would result in a handshake failure anyway).
6922 *) In SSL_CTX_add_session, take into account that there might be multiple
6923 SSL_SESSION structures with the same session ID (e.g. when two threads
6924 concurrently obtain them from an external cache).
6925 The internal cache can handle only one SSL_SESSION with a given ID,
6926 so if there's a conflict, we now throw out the old one to achieve
6930 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6931 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6932 some routines that use cipher OIDs: some ciphers do not have OIDs
6933 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6937 *) Simplify the trust setting structure and code. Now we just have
6938 two sequences of OIDs for trusted and rejected settings. These will
6939 typically have values the same as the extended key usage extension
6940 and any application specific purposes.
6942 The trust checking code now has a default behaviour: it will just
6943 check for an object with the same NID as the passed id. Functions can
6944 be provided to override either the default behaviour or the behaviour
6945 for a given id. SSL client, server and email already have functions
6946 in place for compatibility: they check the NID and also return "trusted"
6947 if the certificate is self signed.
6950 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6951 traditional format into an EVP_PKEY structure.
6954 *) Add a password callback function PEM_cb() which either prompts for
6955 a password if usr_data is NULL or otherwise assumes it is a null
6956 terminated password. Allow passwords to be passed on command line
6957 environment or config files in a few more utilities.
6960 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6961 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6962 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6963 Update documentation.
6966 *) Support for ASN1 "NULL" type. This could be handled before by using
6967 ASN1_TYPE but there wasn't any function that would try to read a NULL
6968 and produce an error if it couldn't. For compatibility we also have
6969 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6970 don't allocate anything because they don't need to.
6973 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6975 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6977 *) Rebuild of the memory allocation routines used by OpenSSL code and
6978 possibly others as well. The purpose is to make an interface that
6979 provide hooks so anyone can build a separate set of allocation and
6980 deallocation routines to be used by OpenSSL, for example memory
6981 pool implementations, or something else, which was previously hard
6982 since Malloc(), Realloc() and Free() were defined as macros having
6983 the values malloc, realloc and free, respectively (except for Win32
6984 compilations). The same is provided for memory debugging code.
6985 OpenSSL already comes with functionality to find memory leaks, but
6986 this gives people a chance to debug other memory problems.
6988 With these changes, a new set of functions and macros have appeared:
6990 CRYPTO_set_mem_debug_functions() [F]
6991 CRYPTO_get_mem_debug_functions() [F]
6992 CRYPTO_dbg_set_options() [F]
6993 CRYPTO_dbg_get_options() [F]
6994 CRYPTO_malloc_debug_init() [M]
6996 The memory debug functions are NULL by default, unless the library
6997 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6998 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6999 gives the standard debugging functions that come with OpenSSL) or
7000 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7001 provided by the library user) must be used. When the standard
7002 debugging functions are used, CRYPTO_dbg_set_options can be used to
7003 request additional information:
7004 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7005 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7007 Also, things like CRYPTO_set_mem_functions will always give the
7008 expected result (the new set of functions is used for allocation
7009 and deallocation) at all times, regardless of platform and compiler
7012 To finish it up, some functions that were never use in any other
7013 way than through macros have a new API and new semantic:
7016 CRYPTO_dbg_realloc()
7019 All macros of value have retained their old syntax.
7020 [Richard Levitte and Bodo Moeller]
7022 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7023 ordering of SMIMECapabilities wasn't in "strength order" and there
7024 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7028 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7029 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7030 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7032 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7033 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7034 functionality to handle multipart/signed properly) and a utility
7035 called 'smime' to call all this stuff. This is based on code I
7036 originally wrote for Celo who have kindly allowed it to be
7037 included in OpenSSL.
7040 *) Add variants des_set_key_checked and des_set_key_unchecked of
7041 des_set_key (aka des_key_sched). Global variable des_check_key
7042 decides which of these is called by des_set_key; this way
7043 des_check_key behaves as it always did, but applications and
7044 the library itself, which was buggy for des_check_key == 1,
7045 have a cleaner way to pick the version they need.
7048 *) New function PKCS12_newpass() which changes the password of a
7052 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7053 dynamic mix. In both cases the ids can be used as an index into the
7054 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7055 functions so they accept a list of the field values and the
7056 application doesn't need to directly manipulate the X509_TRUST
7060 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7064 *) Modify the way the V3 extension code looks up extensions. This now
7065 works in a similar way to the object code: we have some "standard"
7066 extensions in a static table which is searched with OBJ_bsearch()
7067 and the application can add dynamic ones if needed. The file
7068 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7069 updated whenever a new extension is added to the core code and kept
7070 in ext_nid order. There is a simple program 'tabtest.c' which checks
7071 this. New extensions are not added too often so this file can readily
7072 be maintained manually.
7074 There are two big advantages in doing things this way. The extensions
7075 can be looked up immediately and no longer need to be "added" using
7076 X509V3_add_standard_extensions(): this function now does nothing.
7077 [Side note: I get *lots* of email saying the extension code doesn't
7078 work because people forget to call this function]
7079 Also no dynamic allocation is done unless new extensions are added:
7080 so if we don't add custom extensions there is no need to call
7081 X509V3_EXT_cleanup().
7084 *) Modify enc utility's salting as follows: make salting the default. Add a
7085 magic header, so unsalted files fail gracefully instead of just decrypting
7086 to garbage. This is because not salting is a big security hole, so people
7087 should be discouraged from doing it.
7090 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7091 digest to be passed on the command line but it only used this
7092 parameter when signing a certificate. Modified so all relevant
7093 operations are affected by the digest parameter including the
7094 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7095 DSA key was used because it didn't fix the digest.
7098 *) Initial certificate chain verify code. Currently tests the untrusted
7099 certificates for consistency with the verify purpose (which is set
7100 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7102 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7103 this is because it will reject chains with invalid extensions whereas
7104 every previous version of OpenSSL and SSLeay made no checks at all.
7106 Trust code: checks the root CA for the relevant trust settings. Trust
7107 settings have an initial value consistent with the verify purpose: e.g.
7108 if the verify purpose is for SSL client use it expects the CA to be
7109 trusted for SSL client use. However the default value can be changed to
7110 permit custom trust settings: one example of this would be to only trust
7111 certificates from a specific "secure" set of CAs.
7113 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7114 which should be used for version portability: especially since the
7115 verify structure is likely to change more often now.
7117 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7118 to set them. If not set then assume SSL clients will verify SSL servers
7121 Two new options to the verify program: -untrusted allows a set of
7122 untrusted certificates to be passed in and -purpose which sets the
7123 intended purpose of the certificate. If a purpose is set then the
7124 new chain verify code is used to check extension consistency.
7127 *) Support for the authority information access extension.
7130 *) Modify RSA and DSA PEM read routines to transparently handle
7131 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7132 public keys in a format compatible with certificate
7133 SubjectPublicKeyInfo structures. Unfortunately there were already
7134 functions called *_PublicKey_* which used various odd formats so
7135 these are retained for compatibility: however the DSA variants were
7136 never in a public release so they have been deleted. Changed dsa/rsa
7137 utilities to handle the new format: note no releases ever handled public
7138 keys so we should be OK.
7140 The primary motivation for this change is to avoid the same fiasco
7141 that dogs private keys: there are several incompatible private key
7142 formats some of which are standard and some OpenSSL specific and
7143 require various evil hacks to allow partial transparent handling and
7144 even then it doesn't work with DER formats. Given the option anything
7145 other than PKCS#8 should be dumped: but the other formats have to
7146 stay in the name of compatibility.
7148 With public keys and the benefit of hindsight one standard format
7149 is used which works with EVP_PKEY, RSA or DSA structures: though
7150 it clearly returns an error if you try to read the wrong kind of key.
7152 Added a -pubkey option to the 'x509' utility to output the public key.
7153 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7154 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7155 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7156 that do the same as the EVP_PKEY_assign_*() except they up the
7157 reference count of the added key (they don't "swallow" the
7161 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7162 CRLs would fail if the file contained no certificates or no CRLs:
7163 added a new function to read in both types and return the number
7164 read: this means that if none are read it will be an error. The
7165 DER versions of the certificate and CRL reader would always fail
7166 because it isn't possible to mix certificates and CRLs in DER format
7167 without choking one or the other routine. Changed this to just read
7168 a certificate: this is the best we can do. Also modified the code
7169 in apps/verify.c to take notice of return codes: it was previously
7170 attempting to read in certificates from NULL pointers and ignoring
7171 any errors: this is one reason why the cert and CRL reader seemed
7172 to work. It doesn't check return codes from the default certificate
7173 routines: these may well fail if the certificates aren't installed.
7176 *) Code to support otherName option in GeneralName.
7179 *) First update to verify code. Change the verify utility
7180 so it warns if it is passed a self signed certificate:
7181 for consistency with the normal behaviour. X509_verify
7182 has been modified to it will now verify a self signed
7183 certificate if *exactly* the same certificate appears
7184 in the store: it was previously impossible to trust a
7185 single self signed certificate. This means that:
7186 openssl verify ss.pem
7187 now gives a warning about a self signed certificate but
7188 openssl verify -CAfile ss.pem ss.pem
7192 *) For servers, store verify_result in SSL_SESSION data structure
7193 (and add it to external session representation).
7194 This is needed when client certificate verifications fails,
7195 but an application-provided verification callback (set by
7196 SSL_CTX_set_cert_verify_callback) allows accepting the session
7197 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7198 but returns 1): When the session is reused, we have to set
7199 ssl->verify_result to the appropriate error code to avoid
7201 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7203 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7204 case in PKCS7_dataInit() where the signed PKCS7 structure
7205 didn't contain any existing data because it was being created.
7206 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7208 *) Add a salt to the key derivation routines in enc.c. This
7209 forms the first 8 bytes of the encrypted file. Also add a
7210 -S option to allow a salt to be input on the command line.
7213 *) New function X509_cmp(). Oddly enough there wasn't a function
7214 to compare two certificates. We do this by working out the SHA1
7215 hash and comparing that. X509_cmp() will be needed by the trust
7219 *) SSL_get1_session() is like SSL_get_session(), but increments
7220 the reference count in the SSL_SESSION returned.
7221 [Geoff Thorpe <geoff@eu.c2.net>]
7223 *) Fix for 'req': it was adding a null to request attributes.
7224 Also change the X509_LOOKUP and X509_INFO code to handle
7225 certificate auxiliary information.
7228 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7232 *) Add the possibility to add extra information to the memory leak
7233 detecting output, to form tracebacks, showing from where each
7234 allocation was originated: CRYPTO_push_info("constant string") adds
7235 the string plus current file name and line number to a per-thread
7236 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7237 is like calling CYRPTO_pop_info() until the stack is empty.
7238 Also updated memory leak detection code to be multi-thread-safe.
7241 *) Add options -text and -noout to pkcs7 utility and delete the
7242 encryption options which never did anything. Update docs.
7245 *) Add options to some of the utilities to allow the pass phrase
7246 to be included on either the command line (not recommended on
7247 OSes like Unix) or read from the environment. Update the
7248 manpages and fix a few bugs.
7251 *) Add a few manpages for some of the openssl commands.
7254 *) Fix the -revoke option in ca. It was freeing up memory twice,
7255 leaking and not finding already revoked certificates.
7258 *) Extensive changes to support certificate auxiliary information.
7259 This involves the use of X509_CERT_AUX structure and X509_AUX
7260 functions. An X509_AUX function such as PEM_read_X509_AUX()
7261 can still read in a certificate file in the usual way but it
7262 will also read in any additional "auxiliary information". By
7263 doing things this way a fair degree of compatibility can be
7264 retained: existing certificates can have this information added
7265 using the new 'x509' options.
7267 Current auxiliary information includes an "alias" and some trust
7268 settings. The trust settings will ultimately be used in enhanced
7269 certificate chain verification routines: currently a certificate
7270 can only be trusted if it is self signed and then it is trusted
7274 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7275 The problem was that one of the replacement routines had not been working
7276 since SSLeay releases. For now the offending routine has been replaced
7277 with non-optimised assembler. Even so, this now gives around 95%
7278 performance improvement for 1024 bit RSA signs.
7281 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7282 handling. Most clients have the effective key size in bits equal to
7283 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7284 A few however don't do this and instead use the size of the decrypted key
7285 to determine the RC2 key length and the AlgorithmIdentifier to determine
7286 the effective key length. In this case the effective key length can still
7287 be 40 bits but the key length can be 168 bits for example. This is fixed
7288 by manually forcing an RC2 key into the EVP_PKEY structure because the
7289 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7290 the key length and effective key length are equal.
7293 *) Add a bunch of functions that should simplify the creation of
7294 X509_NAME structures. Now you should be able to do:
7295 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7296 and have it automatically work out the correct field type and fill in
7297 the structures. The more adventurous can try:
7298 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7299 and it will (hopefully) work out the correct multibyte encoding.
7302 *) Change the 'req' utility to use the new field handling and multibyte
7303 copy routines. Before the DN field creation was handled in an ad hoc
7304 way in req, ca, and x509 which was rather broken and didn't support
7305 BMPStrings or UTF8Strings. Since some software doesn't implement
7306 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7307 using the dirstring_type option. See the new comment in the default
7308 openssl.cnf for more info.
7311 *) Make crypto/rand/md_rand.c more robust:
7312 - Assure unique random numbers after fork().
7313 - Make sure that concurrent threads access the global counter and
7314 md serializably so that we never lose entropy in them
7315 or use exactly the same state in multiple threads.
7316 Access to the large state is not always serializable because
7317 the additional locking could be a performance killer, and
7318 md should be large enough anyway.
7321 *) New file apps/app_rand.c with commonly needed functionality
7322 for handling the random seed file.
7324 Use the random seed file in some applications that previously did not:
7326 dsaparam -genkey (which also ignored its '-rand' option),
7329 x509 (when signing).
7330 Except on systems with /dev/urandom, it is crucial to have a random
7331 seed file at least for key creation, DSA signing, and for DH exchanges;
7332 for RSA signatures we could do without one.
7334 gendh and gendsa (unlike genrsa) used to read only the first byte
7335 of each file listed in the '-rand' option. The function as previously
7336 found in genrsa is now in app_rand.c and is used by all programs
7337 that support '-rand'.
7340 *) In RAND_write_file, use mode 0600 for creating files;
7341 don't just chmod when it may be too late.
7344 *) Report an error from X509_STORE_load_locations
7345 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7348 *) New function ASN1_mbstring_copy() this copies a string in either
7349 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7350 into an ASN1_STRING type. A mask of permissible types is passed
7351 and it chooses the "minimal" type to use or an error if not type
7355 *) Add function equivalents to the various macros in asn1.h. The old
7356 macros are retained with an M_ prefix. Code inside the library can
7357 use the M_ macros. External code (including the openssl utility)
7358 should *NOT* in order to be "shared library friendly".
7361 *) Add various functions that can check a certificate's extensions
7362 to see if it usable for various purposes such as SSL client,
7363 server or S/MIME and CAs of these types. This is currently
7364 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7365 verification. Also added a -purpose flag to x509 utility to
7366 print out all the purposes.
7369 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7373 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7374 for, obtain and decode and extension and obtain its critical flag.
7375 This allows all the necessary extension code to be handled in a
7376 single function call.
7379 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7380 platforms. See crypto/rc4/rc4_enc.c for further details.
7383 *) New -noout option to asn1parse. This causes no output to be produced
7384 its main use is when combined with -strparse and -out to extract data
7385 from a file (which may not be in ASN.1 format).
7388 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7389 when producing the local key id.
7390 [Richard Levitte <levitte@stacken.kth.se>]
7392 *) New option -dhparam in s_server. This allows a DH parameter file to be
7393 stated explicitly. If it is not stated then it tries the first server
7394 certificate file. The previous behaviour hard coded the filename
7398 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7399 a public key to be input or output. For example:
7400 openssl rsa -in key.pem -pubout -out pubkey.pem
7401 Also added necessary DSA public key functions to handle this.
7404 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7405 in the message. This was handled by allowing
7406 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7407 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7409 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7410 to the end of the strings whereas this didn't. This would cause problems
7411 if strings read with d2i_ASN1_bytes() were later modified.
7412 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7414 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7415 data and it contains EOF it will end up returning an error. This is
7416 caused by input 46 bytes long. The cause is due to the way base64
7417 BIOs find the start of base64 encoded data. They do this by trying a
7418 trial decode on each line until they find one that works. When they
7419 do a flag is set and it starts again knowing it can pass all the
7420 data directly through the decoder. Unfortunately it doesn't reset
7421 the context it uses. This means that if EOF is reached an attempt
7422 is made to pass two EOFs through the context and this causes the
7423 resulting error. This can also cause other problems as well. As is
7424 usual with these problems it takes *ages* to find and the fix is
7425 trivial: move one line.
7426 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7428 *) Ugly workaround to get s_client and s_server working under Windows. The
7429 old code wouldn't work because it needed to select() on sockets and the
7430 tty (for keypresses and to see if data could be written). Win32 only
7431 supports select() on sockets so we select() with a 1s timeout on the
7432 sockets and then see if any characters are waiting to be read, if none
7433 are present then we retry, we also assume we can always write data to
7434 the tty. This isn't nice because the code then blocks until we've
7435 received a complete line of data and it is effectively polling the
7436 keyboard at 1s intervals: however it's quite a bit better than not
7437 working at all :-) A dedicated Windows application might handle this
7438 with an event loop for example.
7441 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7442 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7443 will be called when RSA_sign() and RSA_verify() are used. This is useful
7444 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7445 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7446 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7447 This necessitated the support of an extra signature type NID_md5_sha1
7448 for SSL signatures and modifications to the SSL library to use it instead
7449 of calling RSA_public_decrypt() and RSA_private_encrypt().
7452 *) Add new -verify -CAfile and -CApath options to the crl program, these
7453 will lookup a CRL issuers certificate and verify the signature in a
7454 similar way to the verify program. Tidy up the crl program so it
7455 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7456 less strict. It will now permit CRL extensions even if it is not
7457 a V2 CRL: this will allow it to tolerate some broken CRLs.
7460 *) Initialize all non-automatic variables each time one of the openssl
7461 sub-programs is started (this is necessary as they may be started
7462 multiple times from the "OpenSSL>" prompt).
7463 [Lennart Bang, Bodo Moeller]
7465 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7466 removing all other RSA functionality (this is what NO_RSA does). This
7467 is so (for example) those in the US can disable those operations covered
7468 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7472 *) Non-copying interface to BIO pairs.
7473 (still largely untested)
7476 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7477 ASCII string. This was handled independently in various places before.
7480 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7481 UTF8 strings a character at a time.
7484 *) Use client_version from client hello to select the protocol
7485 (s23_srvr.c) and for RSA client key exchange verification
7486 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7489 *) Add various utility functions to handle SPKACs, these were previously
7490 handled by poking round in the structure internals. Added new function
7491 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7492 print, verify and generate SPKACs. Based on an original idea from
7493 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7496 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7499 *) Allow the config file extension section to be overwritten on the
7500 command line. Based on an original idea from Massimiliano Pala
7501 <madwolf@comune.modena.it>. The new option is called -extensions
7502 and can be applied to ca, req and x509. Also -reqexts to override
7503 the request extensions in req and -crlexts to override the crl extensions
7507 *) Add new feature to the SPKAC handling in ca. Now you can include
7508 the same field multiple times by preceding it by "XXXX." for example:
7511 this is the same syntax as used in the req config file.
7514 *) Allow certificate extensions to be added to certificate requests. These
7515 are specified in a 'req_extensions' option of the req section of the
7516 config file. They can be printed out with the -text option to req but
7517 are otherwise ignored at present.
7520 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7521 data read consists of only the final block it would not decrypted because
7522 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7523 A misplaced 'break' also meant the decrypted final block might not be
7524 copied until the next read.
7527 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7528 a few extra parameters to the DH structure: these will be useful if
7529 for example we want the value of 'q' or implement X9.42 DH.
7532 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7533 provides hooks that allow the default DSA functions or functions on a
7534 "per key" basis to be replaced. This allows hardware acceleration and
7535 hardware key storage to be handled without major modification to the
7536 library. Also added low level modexp hooks and CRYPTO_EX structure and
7537 associated functions.
7540 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7541 as "read only": it can't be written to and the buffer it points to will
7542 not be freed. Reading from a read only BIO is much more efficient than
7543 a normal memory BIO. This was added because there are several times when
7544 an area of memory needs to be read from a BIO. The previous method was
7545 to create a memory BIO and write the data to it, this results in two
7546 copies of the data and an O(n^2) reading algorithm. There is a new
7547 function BIO_new_mem_buf() which creates a read only memory BIO from
7548 an area of memory. Also modified the PKCS#7 routines to use read only
7552 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7553 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7554 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7555 but a retry condition occured while trying to read the rest.
7558 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7559 NID_pkcs7_encrypted by default: this was wrong since this should almost
7560 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7561 the encrypted data type: this is a more sensible place to put it and it
7562 allows the PKCS#12 code to be tidied up that duplicated this
7566 *) Changed obj_dat.pl script so it takes its input and output files on
7567 the command line. This should avoid shell escape redirection problems
7571 *) Initial support for certificate extension requests, these are included
7572 in things like Xenroll certificate requests. Included functions to allow
7573 extensions to be obtained and added.
7576 *) -crlf option to s_client and s_server for sending newlines as
7577 CRLF (as required by many protocols).
7580 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7582 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7583 [Ralf S. Engelschall]
7585 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7586 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7588 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7592 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7593 DH parameters/keys (q is lost during that conversion, but the resulting
7594 DH parameters contain its length).
7596 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7597 much faster than DH_generate_parameters (which creates parameters
7598 where p = 2*q + 1), and also the smaller q makes DH computations
7599 much more efficient (160-bit exponentiation instead of 1024-bit
7600 exponentiation); so this provides a convenient way to support DHE
7601 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7602 utter importance to use
7603 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7605 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7606 when such DH parameters are used, because otherwise small subgroup
7607 attacks may become possible!
7610 *) Avoid memory leak in i2d_DHparams.
7613 *) Allow the -k option to be used more than once in the enc program:
7614 this allows the same encrypted message to be read by multiple recipients.
7617 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7618 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7619 it will always use the numerical form of the OID, even if it has a short
7623 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7624 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7625 otherwise bn_mod_exp was called. In the case of hardware keys for example
7626 no private key components need be present and it might store extra data
7627 in the RSA structure, which cannot be accessed from bn_mod_exp.
7628 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7629 private key operations.
7632 *) Added support for SPARC Linux.
7635 *) pem_password_cb function type incompatibly changed from
7636 typedef int pem_password_cb(char *buf, int size, int rwflag);
7638 ....(char *buf, int size, int rwflag, void *userdata);
7639 so that applications can pass data to their callbacks:
7640 The PEM[_ASN1]_{read,write}... functions and macros now take an
7641 additional void * argument, which is just handed through whenever
7642 the password callback is called.
7643 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7645 New function SSL_CTX_set_default_passwd_cb_userdata.
7647 Compatibility note: As many C implementations push function arguments
7648 onto the stack in reverse order, the new library version is likely to
7649 interoperate with programs that have been compiled with the old
7650 pem_password_cb definition (PEM_whatever takes some data that
7651 happens to be on the stack as its last argument, and the callback
7652 just ignores this garbage); but there is no guarantee whatsoever that
7655 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7656 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7657 problems not only on Windows, but also on some Unix platforms.
7658 To avoid problematic command lines, these definitions are now in an
7659 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7660 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7663 *) MIPS III/IV assembler module is reimplemented.
7666 *) More DES library cleanups: remove references to srand/rand and
7667 delete an unused file.
7670 *) Add support for the the free Netwide assembler (NASM) under Win32,
7671 since not many people have MASM (ml) and it can be hard to obtain.
7672 This is currently experimental but it seems to work OK and pass all
7673 the tests. Check out INSTALL.W32 for info.
7676 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7677 without temporary keys kept an extra copy of the server key,
7678 and connections with temporary keys did not free everything in case
7682 *) New function RSA_check_key and new openssl rsa option -check
7683 for verifying the consistency of RSA keys.
7684 [Ulf Moeller, Bodo Moeller]
7686 *) Various changes to make Win32 compile work:
7687 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7688 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7689 comparison" warnings.
7690 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7693 *) Add a debugging option to PKCS#5 v2 key generation function: when
7694 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7695 derived keys are printed to stderr.
7698 *) Copy the flags in ASN1_STRING_dup().
7699 [Roman E. Pavlov <pre@mo.msk.ru>]
7701 *) The x509 application mishandled signing requests containing DSA
7702 keys when the signing key was also DSA and the parameters didn't match.
7704 It was supposed to omit the parameters when they matched the signing key:
7705 the verifying software was then supposed to automatically use the CA's
7706 parameters if they were absent from the end user certificate.
7708 Omitting parameters is no longer recommended. The test was also
7709 the wrong way round! This was probably due to unusual behaviour in
7710 EVP_cmp_parameters() which returns 1 if the parameters match.
7711 This meant that parameters were omitted when they *didn't* match and
7712 the certificate was useless. Certificates signed with 'ca' didn't have
7714 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7716 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7717 The interface is as follows:
7718 Applications can use
7719 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7720 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7721 "off" is now the default.
7722 The library internally uses
7723 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7724 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7725 to disable memory-checking temporarily.
7727 Some inconsistent states that previously were possible (and were
7728 even the default) are now avoided.
7730 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7731 with each memory chunk allocated; this is occasionally more helpful
7732 than just having a counter.
7734 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7736 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7740 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7741 which largely parallels "options", but is for changing API behaviour,
7742 whereas "options" are about protocol behaviour.
7743 Initial "mode" flags are:
7745 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7746 a single record has been written.
7747 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7748 retries use the same buffer location.
7749 (But all of the contents must be
7753 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7756 *) Fix problems with no-hmac etc.
7757 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7759 *) New functions RSA_get_default_method(), RSA_set_method() and
7760 RSA_get_method(). These allows replacement of RSA_METHODs without having
7761 to mess around with the internals of an RSA structure.
7764 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7765 Also really enable memory leak checks in openssl.c and in some
7767 [Chad C. Mulligan, Bodo Moeller]
7769 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7770 up the length of negative integers. This has now been simplified to just
7771 store the length when it is first determined and use it later, rather
7772 than trying to keep track of where data is copied and updating it to
7774 [Steve Henson, reported by Brien Wheeler
7775 <bwheeler@authentica-security.com>]
7777 *) Add a new function PKCS7_signatureVerify. This allows the verification
7778 of a PKCS#7 signature but with the signing certificate passed to the
7779 function itself. This contrasts with PKCS7_dataVerify which assumes the
7780 certificate is present in the PKCS#7 structure. This isn't always the
7781 case: certificates can be omitted from a PKCS#7 structure and be
7782 distributed by "out of band" means (such as a certificate database).
7785 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7786 function prototypes in pem.h, also change util/mkdef.pl to add the
7787 necessary function names.
7790 *) mk1mf.pl (used by Windows builds) did not properly read the
7791 options set by Configure in the top level Makefile, and Configure
7792 was not even able to write more than one option correctly.
7793 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7796 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7797 file to be loaded from a BIO or FILE pointer. The BIO version will
7798 for example allow memory BIOs to contain config info.
7801 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7802 Whoever hopes to achieve shared-library compatibility across versions
7803 must use this, not the compile-time macro.
7804 (Exercise 0.9.4: Which is the minimum library version required by
7806 Note: All this applies only to multi-threaded programs, others don't
7810 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7811 through a BIO pair triggered the default case, i.e.
7812 SSLerr(...,SSL_R_UNKNOWN_STATE).
7815 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7816 can use the SSL library even if none of the specific BIOs is
7820 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7821 for the encoded length.
7822 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7824 *) Add initial documentation of the X509V3 functions.
7827 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7828 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7829 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7830 secure PKCS#8 private key format with a high iteration count.
7833 *) Fix determination of Perl interpreter: A perl or perl5
7834 _directory_ in $PATH was also accepted as the interpreter.
7835 [Ralf S. Engelschall]
7837 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7838 wrong with it but it was very old and did things like calling
7839 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7843 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7844 to use the new extension code.
7847 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7848 with macros. This should make it easier to change their form, add extra
7849 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7853 *) Add to configuration table a new entry that can specify an alternative
7854 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7855 according to Mark Crispin <MRC@Panda.COM>.
7859 *) DES CBC did not update the IV. Weird.
7862 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7863 Changing the behaviour of the former might break existing programs --
7864 where IV updating is needed, des_ncbc_encrypt can be used.
7867 *) When bntest is run from "make test" it drives bc to check its
7868 calculations, as well as internally checking them. If an internal check
7869 fails, it needs to cause bc to give a non-zero result or make test carries
7870 on without noticing the failure. Fixed.
7873 *) DES library cleanups.
7876 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7877 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7878 ciphers. NOTE: although the key derivation function has been verified
7879 against some published test vectors it has not been extensively tested
7880 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7884 *) Instead of "mkdir -p", which is not fully portable, use new
7885 Perl script "util/mkdir-p.pl".
7888 *) Rewrite the way password based encryption (PBE) is handled. It used to
7889 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7890 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7891 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7892 the 'parameter' field of the AlgorithmIdentifier is passed to the
7893 underlying key generation function so it must do its own ASN1 parsing.
7894 This has also changed the EVP_PBE_CipherInit() function which now has a
7895 'parameter' argument instead of literal salt and iteration count values
7896 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7899 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7900 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7901 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7902 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7903 value was just used as a "magic string" and not used directly its
7904 value doesn't matter.
7907 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7911 *) "linux-sparc64" configuration (ultrapenguin).
7912 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7913 "linux-sparc" configuration.
7914 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7916 *) config now generates no-xxx options for missing ciphers.
7919 *) Support the EBCDIC character set (work in progress).
7920 File ebcdic.c not yet included because it has a different license.
7921 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7923 *) Support BS2000/OSD-POSIX.
7924 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7926 *) Make callbacks for key generation use void * instead of char *.
7929 *) Make S/MIME samples compile (not yet tested).
7932 *) Additional typesafe stacks.
7935 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7939 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7941 *) New configuration variant "sco5-gcc".
7943 *) Updated some demos.
7944 [Sean O Riordain, Wade Scholine]
7946 *) Add missing BIO_free at exit of pkcs12 application.
7949 *) Fix memory leak in conf.c.
7952 *) Updates for Win32 to assembler version of MD5.
7955 *) Set #! path to perl in apps/der_chop to where we found it
7956 instead of using a fixed path.
7959 *) SHA library changes for irix64-mips4-cc.
7962 *) Improvements for VMS support.
7966 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7968 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7969 This also avoids the problems with SC4.2 and unpatched SC5.
7970 [Andy Polyakov <appro@fy.chalmers.se>]
7972 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7973 These are required because of the typesafe stack would otherwise break
7974 existing code. If old code used a structure member which used to be STACK
7975 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7976 sk_num or sk_value it would produce an error because the num, data members
7977 are not present in STACK_OF. Now it just produces a warning. sk_set
7978 replaces the old method of assigning a value to sk_value
7979 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7980 that does this will no longer work (and should use sk_set instead) but
7981 this could be regarded as a "questionable" behaviour anyway.
7984 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7985 correctly handle encrypted S/MIME data.
7988 *) Change type of various DES function arguments from des_cblock
7989 (which means, in function argument declarations, pointer to char)
7990 to des_cblock * (meaning pointer to array with 8 char elements),
7991 which allows the compiler to do more typechecking; it was like
7992 that back in SSLeay, but with lots of ugly casts.
7994 Introduce new type const_des_cblock.
7997 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7998 problems: find RecipientInfo structure that matches recipient certificate
7999 and initialise the ASN1 structures properly based on passed cipher.
8002 *) Belatedly make the BN tests actually check the results.
8005 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8006 to and from BNs: it was completely broken. New compilation option
8007 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8008 key elements as negative integers.
8011 *) Reorganize and speed up MD5.
8012 [Andy Polyakov <appro@fy.chalmers.se>]
8015 [Richard Levitte <richard@levitte.org>]
8017 *) New option -out to asn1parse to allow the parsed structure to be
8018 output to a file. This is most useful when combined with the -strparse
8019 option to examine the output of things like OCTET STRINGS.
8022 *) Make SSL library a little more fool-proof by not requiring any longer
8023 that SSL_set_{accept,connect}_state be called before
8024 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8025 in many applications because usually everything *appeared* to work as
8026 intended anyway -- now it really works as intended).
8029 *) Move openssl.cnf out of lib/.
8032 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8033 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8034 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8035 [Ralf S. Engelschall]
8037 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8038 handle PKCS#7 enveloped data properly.
8039 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8041 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8042 copying pointers. The cert_st handling is changed by this in
8043 various ways (and thus what used to be known as ctx->default_cert
8044 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8045 any longer when s->cert does not give us what we need).
8046 ssl_cert_instantiate becomes obsolete by this change.
8047 As soon as we've got the new code right (possibly it already is?),
8048 we have solved a couple of bugs of the earlier code where s->cert
8049 was used as if it could not have been shared with other SSL structures.
8051 Note that using the SSL API in certain dirty ways now will result
8052 in different behaviour than observed with earlier library versions:
8053 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8054 does not influence s as it used to.
8056 In order to clean up things more thoroughly, inside SSL_SESSION
8057 we don't use CERT any longer, but a new structure SESS_CERT
8058 that holds per-session data (if available); currently, this is
8059 the peer's certificate chain and, for clients, the server's certificate
8060 and temporary key. CERT holds only those values that can have
8061 meaningful defaults in an SSL_CTX.
8064 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8065 from the internal representation. Various PKCS#7 fixes: remove some
8066 evil casts and set the enc_dig_alg field properly based on the signing
8070 *) Allow PKCS#12 password to be set from the command line or the
8071 environment. Let 'ca' get its config file name from the environment
8072 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8076 *) Allow certificate policies extension to use an IA5STRING for the
8077 organization field. This is contrary to the PKIX definition but
8078 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8082 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8083 without disallowing inline assembler and the like for non-pedantic builds.
8086 *) Support Borland C++ builder.
8087 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8092 *) SHA-1 cleanups and performance enhancements.
8093 [Andy Polyakov <appro@fy.chalmers.se>]
8095 *) Sparc v8plus assembler for the bignum library.
8096 [Andy Polyakov <appro@fy.chalmers.se>]
8098 *) Accept any -xxx and +xxx compiler options in Configure.
8101 *) Update HPUX configuration.
8104 *) Add missing sk_<type>_unshift() function to safestack.h
8105 [Ralf S. Engelschall]
8107 *) New function SSL_CTX_use_certificate_chain_file that sets the
8108 "extra_cert"s in addition to the certificate. (This makes sense
8109 only for "PEM" format files, as chains as a whole are not
8113 *) Support verify_depth from the SSL API.
8114 x509_vfy.c had what can be considered an off-by-one-error:
8115 Its depth (which was not part of the external interface)
8116 was actually counting the number of certificates in a chain;
8117 now it really counts the depth.
8120 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8121 instead of X509err, which often resulted in confusing error
8122 messages since the error codes are not globally unique
8123 (e.g. an alleged error in ssl3_accept when a certificate
8124 didn't match the private key).
8126 *) New function SSL_CTX_set_session_id_context that allows to set a default
8127 value (so that you don't need SSL_set_session_id_context for each
8128 connection using the SSL_CTX).
8131 *) OAEP decoding bug fix.
8134 *) Support INSTALL_PREFIX for package builders, as proposed by
8138 *) New Configure options "threads" and "no-threads". For systems
8139 where the proper compiler options are known (currently Solaris
8140 and Linux), "threads" is the default.
8143 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8146 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8147 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8148 such as /usr/local/bin.
8151 *) "make linux-shared" to build shared libraries.
8152 [Niels Poppe <niels@netbox.org>]
8154 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8157 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8158 extension adding in x509 utility.
8161 *) Remove NOPROTO sections and error code comments.
8164 *) Partial rewrite of the DEF file generator to now parse the ANSI
8168 *) New Configure options --prefix=DIR and --openssldir=DIR.
8171 *) Complete rewrite of the error code script(s). It is all now handled
8172 by one script at the top level which handles error code gathering,
8173 header rewriting and C source file generation. It should be much better
8174 than the old method: it now uses a modified version of Ulf's parser to
8175 read the ANSI prototypes in all header files (thus the old K&R definitions
8176 aren't needed for error creation any more) and do a better job of
8177 translating function codes into names. The old 'ASN1 error code imbedded
8178 in a comment' is no longer necessary and it doesn't use .err files which
8179 have now been deleted. Also the error code call doesn't have to appear all
8180 on one line (which resulted in some large lines...).
8183 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8186 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8187 0 (which usually indicates a closed connection), but continue reading.
8190 *) Fix some race conditions.
8193 *) Add support for CRL distribution points extension. Add Certificate
8194 Policies and CRL distribution points documentation.
8197 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8200 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8201 8 of keying material. Merlin has also confirmed interop with this fix
8202 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8203 [Merlin Hughes <merlin@baltimore.ie>]
8205 *) Fix lots of warnings.
8206 [Richard Levitte <levitte@stacken.kth.se>]
8208 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8209 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8210 [Richard Levitte <levitte@stacken.kth.se>]
8212 *) Fix problems with sizeof(long) == 8.
8213 [Andy Polyakov <appro@fy.chalmers.se>]
8215 *) Change functions to ANSI C.
8218 *) Fix typos in error codes.
8219 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8221 *) Remove defunct assembler files from Configure.
8224 *) SPARC v8 assembler BIGNUM implementation.
8225 [Andy Polyakov <appro@fy.chalmers.se>]
8227 *) Support for Certificate Policies extension: both print and set.
8228 Various additions to support the r2i method this uses.
8231 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8232 return a const string when you are expecting an allocated buffer.
8235 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8236 types DirectoryString and DisplayText.
8239 *) Add code to allow r2i extensions to access the configuration database,
8240 add an LHASH database driver and add several ctx helper functions.
8243 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8244 fail when they extended the size of a BIGNUM.
8247 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8248 support typesafe stack.
8251 *) Fix typo in SSL_[gs]et_options().
8252 [Nils Frostberg <nils@medcom.se>]
8254 *) Delete various functions and files that belonged to the (now obsolete)
8255 old X509V3 handling code.
8258 *) New Configure option "rsaref".
8261 *) Don't auto-generate pem.h.
8264 *) Introduce type-safe ASN.1 SETs.
8267 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8268 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8270 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8271 that links with OpenSSL (well at least cause lots of warnings), but fear
8272 not: the conversion is trivial, and it eliminates loads of evil casts. A
8273 few STACKed things have been converted already. Feel free to convert more.
8274 In the fullness of time, I'll do away with the STACK type altogether.
8277 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8278 specified in <certfile> by updating the entry in the index.txt file.
8279 This way one no longer has to edit the index.txt file manually for
8280 revoking a certificate. The -revoke option does the gory details now.
8281 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8283 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8284 `-text' option at all and this way the `-noout -text' combination was
8285 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8286 [Ralf S. Engelschall]
8288 *) Make sure a corresponding plain text error message exists for the
8289 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8290 verify callback function determined that a certificate was revoked.
8291 [Ralf S. Engelschall]
8293 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8294 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8295 all available cipers including rc5, which was forgotten until now.
8296 In order to let the testing shell script know which algorithms
8297 are available, a new (up to now undocumented) command
8298 "openssl list-cipher-commands" is used.
8301 *) Bugfix: s_client occasionally would sleep in select() when
8302 it should have checked SSL_pending() first.
8305 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8306 the raw DSA values prior to ASN.1 encoding.
8309 *) Tweaks to Configure
8310 [Niels Poppe <niels@netbox.org>]
8312 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8316 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8319 *) New config option to avoid instructions that are illegal on the 80386.
8320 The default code is faster, but requires at least a 486.
8323 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8324 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8325 same as SSL2_VERSION anyway.
8328 *) New "-showcerts" option for s_client.
8331 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8332 application. Various cleanups and fixes.
8335 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8336 modify error routines to work internally. Add error codes and PBE init
8337 to library startup routines.
8340 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8341 packing functions to asn1 and evp. Changed function names and error
8342 codes along the way.
8345 *) PKCS12 integration: and so it begins... First of several patches to
8346 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8347 objects to objects.h
8350 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8351 and display support for Thawte strong extranet extension.
8354 *) Add LinuxPPC support.
8355 [Jeff Dubrule <igor@pobox.org>]
8357 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8358 bn_div_words in alpha.s.
8359 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8361 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8362 OAEP isn't supported when OpenSSL is built with RSAref.
8363 [Ulf Moeller <ulf@fitug.de>]
8365 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8366 so they no longer are missing under -DNOPROTO.
8367 [Soren S. Jorvang <soren@t.dk>]
8370 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8372 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8373 doesn't work when the session is reused. Coming soon!
8376 *) Fix a security hole, that allows sessions to be reused in the wrong
8377 context thus bypassing client cert protection! All software that uses
8378 client certs and session caches in multiple contexts NEEDS PATCHING to
8379 allow session reuse! A fuller solution is in the works.
8380 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8382 *) Some more source tree cleanups (removed obsolete files
8383 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8384 permission on "config" script to be executable) and a fix for the INSTALL
8386 [Ulf Moeller <ulf@fitug.de>]
8388 *) Remove some legacy and erroneous uses of malloc, free instead of
8390 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8392 *) Make rsa_oaep_test return non-zero on error.
8393 [Ulf Moeller <ulf@fitug.de>]
8395 *) Add support for native Solaris shared libraries. Configure
8396 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8397 if someone would make that last step automatic.
8398 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8400 *) ctx_size was not built with the right compiler during "make links". Fixed.
8403 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8404 except NULL ciphers". This means the default cipher list will no longer
8405 enable NULL ciphers. They need to be specifically enabled e.g. with
8406 the string "DEFAULT:eNULL".
8409 *) Fix to RSA private encryption routines: if p < q then it would
8410 occasionally produce an invalid result. This will only happen with
8411 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8414 *) Be less restrictive and allow also `perl util/perlpath.pl
8415 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8416 because this way one can also use an interpreter named `perl5' (which is
8417 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8418 installed as `perl').
8419 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8421 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8422 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8424 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8425 advapi32.lib to Win32 build and change the pem test comparision
8426 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8427 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8428 and crypto/des/ede_cbcm_enc.c.
8431 *) DES quad checksum was broken on big-endian architectures. Fixed.
8434 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8435 Win32 test batch file so it (might) work again. The Win32 test batch file
8436 is horrible: I feel ill....
8439 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8440 in e_os.h. Audit of header files to check ANSI and non ANSI
8441 sections: 10 functions were absent from non ANSI section and not exported
8442 from Windows DLLs. Fixed up libeay.num for new functions.
8445 *) Make `openssl version' output lines consistent.
8446 [Ralf S. Engelschall]
8448 *) Fix Win32 symbol export lists for BIO functions: Added
8449 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8450 to ms/libeay{16,32}.def.
8451 [Ralf S. Engelschall]
8453 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8454 fine under Unix and passes some trivial tests I've now added. But the
8455 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8456 added to make sure no one expects that this stuff really works in the
8457 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8458 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8460 [Ralf S. Engelschall]
8462 *) Fix the generation of two part addresses in perl.
8463 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8465 *) Add config entry for Linux on MIPS.
8466 [John Tobey <jtobey@channel1.com>]
8468 *) Make links whenever Configure is run, unless we are on Windoze.
8471 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8472 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8476 *) Add a useful kludge to allow package maintainers to specify compiler and
8477 other platforms details on the command line without having to patch the
8478 Configure script everytime: One now can use ``perl Configure
8479 <id>:<details>'', i.e. platform ids are allowed to have details appended
8480 to them (seperated by colons). This is treated as there would be a static
8481 pre-configured entry in Configure's %table under key <id> with value
8482 <details> and ``perl Configure <id>'' is called. So, when you want to
8483 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8484 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8485 now, which overrides the FreeBSD-elf entry on-the-fly.
8486 [Ralf S. Engelschall]
8488 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8491 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8492 on the `perl Configure ...' command line. This way one can compile
8493 OpenSSL libraries with Position Independent Code (PIC) which is needed
8494 for linking it into DSOs.
8495 [Ralf S. Engelschall]
8497 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8501 *) Cleaned up the LICENSE document: The official contact for any license
8502 questions now is the OpenSSL core team under openssl-core@openssl.org.
8503 And add a paragraph about the dual-license situation to make sure people
8504 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8505 to the OpenSSL toolkit.
8506 [Ralf S. Engelschall]
8508 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8509 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8510 Additonally cleaned up the `make links' target: Remove unnecessary
8511 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8512 to speed processing and no longer clutter the display with confusing
8513 stuff. Instead only the actually done links are displayed.
8514 [Ralf S. Engelschall]
8516 *) Permit null encryption ciphersuites, used for authentication only. It used
8517 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8518 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8522 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8523 signed attributes when verifying signatures (this would break them),
8524 the detached data encoding was wrong and public keys obtained using
8525 X509_get_pubkey() weren't freed.
8528 *) Add text documentation for the BUFFER functions. Also added a work around
8529 to a Win95 console bug. This was triggered by the password read stuff: the
8530 last character typed gets carried over to the next fread(). If you were
8531 generating a new cert request using 'req' for example then the last
8532 character of the passphrase would be CR which would then enter the first
8536 *) Added the new `Includes OpenSSL Cryptography Software' button as
8537 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8538 button and can be used by applications based on OpenSSL to show the
8539 relationship to the OpenSSL project.
8540 [Ralf S. Engelschall]
8542 *) Remove confusing variables in function signatures in files
8543 ssl/ssl_lib.c and ssl/ssl.h.
8544 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8546 *) Don't install bss_file.c under PREFIX/include/
8547 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8549 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8550 functions that return function pointers and has support for NT specific
8551 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8552 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8553 unsigned to signed types: this was killing the Win32 compile.
8556 *) Add new certificate file to stack functions,
8557 SSL_add_dir_cert_subjects_to_stack() and
8558 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8559 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8560 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8561 This means that Apache-SSL and similar packages don't have to mess around
8562 to add as many CAs as they want to the preferred list.
8565 *) Experiment with doxygen documentation. Currently only partially applied to
8567 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8568 openssl.doxy as the configuration file.
8571 *) Get rid of remaining C++-style comments which strict C compilers hate.
8572 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8574 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8575 compiled in by default: it has problems with large keys.
8578 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8579 DH private keys and/or callback functions which directly correspond to
8580 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8581 is needed for applications which have to configure certificates on a
8582 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8584 For the RSA certificate situation is makes no difference, but
8585 for the DSA certificate situation this fixes the "no shared cipher"
8586 problem where the OpenSSL cipher selection procedure failed because the
8587 temporary keys were not overtaken from the context and the API provided
8588 no way to reconfigure them.
8589 The new functions now let applications reconfigure the stuff and they
8590 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8591 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8592 non-public-API function ssl_cert_instantiate() is used as a helper
8593 function and also to reduce code redundancy inside ssl_rsa.c.
8594 [Ralf S. Engelschall]
8596 *) Move s_server -dcert and -dkey options out of the undocumented feature
8597 area because they are useful for the DSA situation and should be
8598 recognized by the users.
8599 [Ralf S. Engelschall]
8601 *) Fix the cipher decision scheme for export ciphers: the export bits are
8602 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8603 SSL_EXP_MASK. So, the original variable has to be used instead of the
8604 already masked variable.
8605 [Richard Levitte <levitte@stacken.kth.se>]
8607 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8608 [Richard Levitte <levitte@stacken.kth.se>]
8610 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8611 from `int' to `unsigned int' because it's a length and initialized by
8612 EVP_DigestFinal() which expects an `unsigned int *'.
8613 [Richard Levitte <levitte@stacken.kth.se>]
8615 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8616 script. Instead use the usual Shell->Perl transition trick.
8617 [Ralf S. Engelschall]
8619 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8620 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8621 -noout -modulus' as it's already the case for `openssl rsa -noout
8622 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8623 currently the public key is printed (a decision which was already done by
8624 `openssl dsa -modulus' in the past) which serves a similar purpose.
8625 Additionally the NO_RSA no longer completely removes the whole -modulus
8626 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8628 [Ralf S. Engelschall]
8630 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8631 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8632 [Arne Ansper <arne@ats.cyber.ee>]
8634 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8635 to be added. Now both 'req' and 'ca' can use new objects defined in the
8639 *) Add cool BIO that does syslog (or event log on NT).
8640 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8642 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8643 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8644 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8645 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8648 *) Add preliminary config info for new extension code.
8651 *) Make RSA_NO_PADDING really use no padding.
8652 [Ulf Moeller <ulf@fitug.de>]
8654 *) Generate errors when private/public key check is done.
8657 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8658 for some CRL extensions and new objects added.
8661 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8662 key usage extension and fuller support for authority key id.
8665 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8666 padding method for RSA, which is recommended for new applications in PKCS
8667 #1 v2.0 (RFC 2437, October 1998).
8668 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8669 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8670 against Bleichbacher's attack on RSA.
8671 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8674 *) Updates to the new SSL compression code
8675 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8677 *) Fix so that the version number in the master secret, when passed
8678 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8679 (because the server will not accept higher), that the version number
8680 is 0x03,0x01, not 0x03,0x00
8681 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8683 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8684 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8685 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8688 *) Support for RAW extensions where an arbitrary extension can be
8689 created by including its DER encoding. See apps/openssl.cnf for
8693 *) Make sure latest Perl versions don't interpret some generated C array
8694 code as Perl array code in the crypto/err/err_genc.pl script.
8695 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8697 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8698 not many people have the assembler. Various Win32 compilation fixes and
8699 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8703 *) Modify configure script 'Configure' to automatically create crypto/date.h
8704 file under Win32 and also build pem.h from pem.org. New script
8705 util/mkfiles.pl to create the MINFO file on environments that can't do a
8706 'make files': perl util/mkfiles.pl >MINFO should work.
8709 *) Major rework of DES function declarations, in the pursuit of correctness
8710 and purity. As a result, many evil casts evaporated, and some weirdness,
8711 too. You may find this causes warnings in your code. Zapping your evil
8712 casts will probably fix them. Mostly.
8715 *) Fix for a typo in asn1.h. Bug fix to object creation script
8716 obj_dat.pl. It considered a zero in an object definition to mean
8717 "end of object": none of the objects in objects.h have any zeros
8718 so it wasn't spotted.
8719 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8721 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8722 Masking (CBCM). In the absence of test vectors, the best I have been able
8723 to do is check that the decrypt undoes the encrypt, so far. Send me test
8724 vectors if you have them.
8727 *) Correct calculation of key length for export ciphers (too much space was
8728 allocated for null ciphers). This has not been tested!
8731 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8732 message is now correct (it understands "crypto" and "ssl" on its
8733 command line). There is also now an "update" option. This will update
8734 the util/ssleay.num and util/libeay.num files with any new functions.
8736 perl util/mkdef.pl crypto ssl update
8737 it will update them.
8740 *) Overhauled the Perl interface (perl/*):
8741 - ported BN stuff to OpenSSL's different BN library
8742 - made the perl/ source tree CVS-aware
8743 - renamed the package from SSLeay to OpenSSL (the files still contain
8744 their history because I've copied them in the repository)
8745 - removed obsolete files (the test scripts will be replaced
8746 by better Test::Harness variants in the future)
8747 [Ralf S. Engelschall]
8749 *) First cut for a very conservative source tree cleanup:
8750 1. merge various obsolete readme texts into doc/ssleay.txt
8751 where we collect the old documents and readme texts.
8752 2. remove the first part of files where I'm already sure that we no
8753 longer need them because of three reasons: either they are just temporary
8754 files which were left by Eric or they are preserved original files where
8755 I've verified that the diff is also available in the CVS via "cvs diff
8756 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8757 the crypto/md/ stuff).
8758 [Ralf S. Engelschall]
8760 *) More extension code. Incomplete support for subject and issuer alt
8761 name, issuer and authority key id. Change the i2v function parameters
8762 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8763 what that's for :-) Fix to ASN1 macro which messed up
8764 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8767 *) Preliminary support for ENUMERATED type. This is largely copied from the
8771 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8772 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8774 *) Make sure `make rehash' target really finds the `openssl' program.
8775 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8777 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8778 like to hear about it if this slows down other processors.
8781 *) Add CygWin32 platform information to Configure script.
8782 [Alan Batie <batie@aahz.jf.intel.com>]
8784 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8785 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8787 *) New program nseq to manipulate netscape certificate sequences
8790 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8794 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8795 but the BN code had some problems that would cause failures when
8796 doing certificate verification and some other functions.
8797 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8799 *) Add ASN1 and PEM code to support netscape certificate sequences.
8802 *) Add ASN1 and PEM code to support netscape certificate sequences.
8805 *) Add several PKIX and private extended key usage OIDs.
8808 *) Modify the 'ca' program to handle the new extension code. Modify
8809 openssl.cnf for new extension format, add comments.
8812 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8813 and add a sample to openssl.cnf so req -x509 now adds appropriate
8817 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8818 error code, add initial support to X509_print() and x509 application.
8821 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8822 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8823 stuff is currently isolated and isn't even compiled yet.
8826 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8827 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8828 Removed the versions check from X509 routines when loading extensions:
8829 this allows certain broken certificates that don't set the version
8830 properly to be processed.
8833 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8834 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8835 can still be regenerated with "make depend".
8838 *) Spelling mistake in C version of CAST-128.
8839 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8841 *) Changes to the error generation code. The perl script err-code.pl
8842 now reads in the old error codes and retains the old numbers, only
8843 adding new ones if necessary. It also only changes the .err files if new
8844 codes are added. The makefiles have been modified to only insert errors
8845 when needed (to avoid needlessly modifying header files). This is done
8846 by only inserting errors if the .err file is newer than the auto generated
8847 C file. To rebuild all the error codes from scratch (the old behaviour)
8848 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8849 or delete all the .err files.
8852 *) CAST-128 was incorrectly implemented for short keys. The C version has
8853 been fixed, but is untested. The assembler versions are also fixed, but
8854 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8855 to regenerate it if needed.
8856 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8857 Hagino <itojun@kame.net>]
8859 *) File was opened incorrectly in randfile.c.
8860 [Ulf Möller <ulf@fitug.de>]
8862 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8863 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8864 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8865 al: it's just almost always a UTCTime. Note this patch adds new error
8866 codes so do a "make errors" if there are problems.
8869 *) Correct Linux 1 recognition in config.
8870 [Ulf Möller <ulf@fitug.de>]
8872 *) Remove pointless MD5 hash when using DSA keys in ca.
8873 [Anonymous <nobody@replay.com>]
8875 *) Generate an error if given an empty string as a cert directory. Also
8876 generate an error if handed NULL (previously returned 0 to indicate an
8877 error, but didn't set one).
8878 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8880 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8883 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8884 parameters. This was causing a warning which killed off the Win32 compile.
8887 *) Remove C++ style comments from crypto/bn/bn_local.h.
8888 [Neil Costigan <neil.costigan@celocom.com>]
8890 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8891 based on a text string, looking up short and long names and finally
8892 "dot" format. The "dot" format stuff didn't work. Added new function
8893 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8894 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8895 OID is not part of the table.
8898 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8899 X509_LOOKUP_by_alias().
8902 *) Sort openssl functions by name.
8905 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8906 encryption from sample DSA keys (in case anyone is interested the password
8910 *) Make _all_ *_free functions accept a NULL pointer.
8911 [Frans Heymans <fheymans@isaserver.be>]
8913 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8915 [Anonymous <nobody@replay.com>]
8917 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8918 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8920 *) Don't blow it for numeric -newkey arguments to apps/req.
8921 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8923 *) Temp key "for export" tests were wrong in s3_srvr.c.
8924 [Anonymous <nobody@replay.com>]
8926 *) Add prototype for temp key callback functions
8927 SSL_CTX_set_tmp_{rsa,dh}_callback().
8930 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8931 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8934 *) X509_name_add_entry() freed the wrong thing after an error.
8935 [Arne Ansper <arne@ats.cyber.ee>]
8937 *) rsa_eay.c would attempt to free a NULL context.
8938 [Arne Ansper <arne@ats.cyber.ee>]
8940 *) BIO_s_socket() had a broken should_retry() on Windoze.
8941 [Arne Ansper <arne@ats.cyber.ee>]
8943 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8944 [Arne Ansper <arne@ats.cyber.ee>]
8946 *) Make sure the already existing X509_STORE->depth variable is initialized
8947 in X509_STORE_new(), but document the fact that this variable is still
8948 unused in the certificate verification process.
8949 [Ralf S. Engelschall]
8951 *) Fix the various library and apps files to free up pkeys obtained from
8952 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8955 *) Fix reference counting in X509_PUBKEY_get(). This makes
8956 demos/maurice/example2.c work, amongst others, probably.
8957 [Steve Henson and Ben Laurie]
8959 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8960 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8961 are no longer created. This way we have a single and consistent command
8962 line interface `openssl <command>', similar to `cvs <command>'.
8963 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8965 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8966 BIT STRING wrapper always have zero unused bits.
8969 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8972 *) Make the top-level INSTALL documentation easier to understand.
8975 *) Makefiles updated to exit if an error occurs in a sub-directory
8976 make (including if user presses ^C) [Paul Sutton]
8978 *) Make Montgomery context stuff explicit in RSA data structure.
8981 *) Fix build order of pem and err to allow for generated pem.h.
8984 *) Fix renumbering bug in X509_NAME_delete_entry().
8987 *) Enhanced the err-ins.pl script so it makes the error library number
8988 global and can add a library name. This is needed for external ASN1 and
8989 other error libraries.
8992 *) Fixed sk_insert which never worked properly.
8995 *) Fix ASN1 macros so they can handle indefinite length construted
8996 EXPLICIT tags. Some non standard certificates use these: they can now
9000 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9001 into a single doc/ssleay.txt bundle. This way the information is still
9002 preserved but no longer messes up this directory. Now it's new room for
9003 the new set of documenation files.
9004 [Ralf S. Engelschall]
9006 *) SETs were incorrectly DER encoded. This was a major pain, because they
9007 shared code with SEQUENCEs, which aren't coded the same. This means that
9008 almost everything to do with SETs or SEQUENCEs has either changed name or
9009 number of arguments.
9010 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9012 *) Fix test data to work with the above.
9015 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9016 was already fixed by Eric for 0.9.1 it seems.
9017 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9019 *) Autodetect FreeBSD3.
9022 *) Fix various bugs in Configure. This affects the following platforms:
9026 unixware-2.0-pentium
9030 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9031 before they are needed.
9034 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9038 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9040 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9041 changed SSLeay to OpenSSL in version strings.
9042 [Ralf S. Engelschall]
9044 *) Some fixups to the top-level documents.
9047 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9048 because the symlink to include/ was missing.
9049 [Ralf S. Engelschall]
9051 *) Incorporated the popular no-RSA/DSA-only patches
9052 which allow to compile a RSA-free SSLeay.
9053 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9055 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9056 when "ssleay" is still not found.
9057 [Ralf S. Engelschall]
9059 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9060 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9062 *) Updated the README file.
9063 [Ralf S. Engelschall]
9065 *) Added various .cvsignore files in the CVS repository subdirs
9066 to make a "cvs update" really silent.
9067 [Ralf S. Engelschall]
9069 *) Recompiled the error-definition header files and added
9070 missing symbols to the Win32 linker tables.
9071 [Ralf S. Engelschall]
9073 *) Cleaned up the top-level documents;
9074 o new files: CHANGES and LICENSE
9075 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9076 o merged COPYRIGHT into LICENSE
9077 o removed obsolete TODO file
9078 o renamed MICROSOFT to INSTALL.W32
9079 [Ralf S. Engelschall]
9081 *) Removed dummy files from the 0.9.1b source tree:
9082 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9083 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9084 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9085 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9086 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9087 [Ralf S. Engelschall]
9089 *) Added various platform portability fixes.
9092 *) The Genesis of the OpenSSL rpject:
9093 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9094 Young and Tim J. Hudson created while they were working for C2Net until
9096 [The OpenSSL Project]
9099 Changes between 0.9.0b and 0.9.1b [not released]
9101 *) Updated a few CA certificates under certs/
9104 *) Changed some BIGNUM api stuff.
9107 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9108 DGUX x86, Linux Alpha, etc.
9111 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9112 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9116 *) Add -strparse option to asn1pars program which parses nested
9118 [Dr Stephen Henson <shenson@bigfoot.com>]
9120 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9123 *) DSA fix for "ca" program.
9126 *) Added "-genkey" option to "dsaparam" program.
9129 *) Added RIPE MD160 (rmd160) message digest.
9132 *) Added -a (all) option to "ssleay version" command.
9135 *) Added PLATFORM define which is the id given to Configure.
9138 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9141 *) Extended the ASN.1 parser routines.
9144 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9147 *) Added a BN_CTX to the BN library.
9150 *) Fixed the weak key values in DES library
9153 *) Changed API in EVP library for cipher aliases.
9156 *) Added support for RC2/64bit cipher.
9159 *) Converted the lhash library to the crypto/mem.c functions.
9162 *) Added more recognized ASN.1 object ids.
9165 *) Added more RSA padding checks for SSL/TLS.
9168 *) Added BIO proxy/filter functionality.
9171 *) Added extra_certs to SSL_CTX which can be used
9172 send extra CA certificates to the client in the CA cert chain sending
9173 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9176 *) Now Fortezza is denied in the authentication phase because
9177 this is key exchange mechanism is not supported by SSLeay at all.
9180 *) Additional PKCS1 checks.
9183 *) Support the string "TLSv1" for all TLS v1 ciphers.
9186 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9187 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9190 *) Fixed a few memory leaks.
9193 *) Fixed various code and comment typos.
9196 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9197 bytes sent in the client random.
9198 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob